hazard communication trainingmetalatex semi-gloss acrylic coating 5/7/2013 hmis 200 sw evrcln int...

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Department: Air Control As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request. Carcinogen ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0 HMIS 0 1 ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1 HMIS 1 1 FE 348-M B-RESIN 3/1/2007 1 HMIS 1 1 FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0 HMIS 0 1 * TRAFFIC PAINT YELLOW 9/28/2006 0 HMIS 1 1 * AD-2000 CLEANER DEGREASER 8/18/2009 0 HMIS 0 2 METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0 HMIS 0 2 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0 HMIS 0 2 TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0 HMIS 0 2 LOCTITE 5452 THREAD SEALANT 5/29/2012 1 HMIS 1 2 29-05 (AIR DRY) 8/4/1996 0 HMIS 3 2 KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0 HMIS 4 2 KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0 HMIS 4 2 KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0 HMIS 4 2 KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0 HMIS 4 2 KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0 HMIS 4 2 KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0 HMIS 4 2 LIQUID CALCIUM HYDROXIDE 1/1/2012 0 HMIS 0 2 * SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0 HMIS 0 2 * HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0 HMIS 1 2 * ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1 HMIS 1 2 * PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0 HMIS 2 2 * BRITE-MARK H2O BLACK 4/2/2008 1 HMIS 4 2 * LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0 HMIS 1 3 PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1 HMIS 1 3 AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0 HMIS 3 3 * AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0 HMIS 3 3 * LO VOC AQUAP COMP B 8/6/2013 0 HMIS 3 3 * AMOVIS LUBRICANT NO. 8-X 1/29/1997 0 NFPA 1 0 DIESEL FUEL NO. 2 7/31/2006 0 NFPA 2 0 * 3M BRAND ROOFING GRANULES 1/8/2004 0 NFPA 0 1 ACID FLUX CORED SOLDER 10/15/1996 0 NFPA 2 1 SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0 NFPA 3 1 AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0 NFPA 3 2 HETRON 922 4/26/1996 1 NFPA 3 2 Tradenam e MSDS Dat e HMIS/NFPA Health Flam React Copyright (c) 2006 by MSDS1, Inc. All rights reserved. Monday, March 14, 2016 Hazard Communication Trainin g Company: Century Aluminum Of Kentucky, LLC Address: P.O. Box 500 Hawesville KY 42348 Page 1

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Page 1: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 1229-05 (AIR DRY) 8/4/1996 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42LIQUID CALCIUM HYDROXIDE 1/1/2012 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AMOVIS LUBRICANT NO. 8-X 1/29/1997 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32HETRON 922 4/26/1996 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 1

Page 2: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

HETRON 197 P ACC CR 1/5/1996 2NFPA 32BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 510C-350 EPOXY VINYL ESTER RES 3/7/2002 Nnot given NNESAB MILD STEEL COVERED ELECTRODES 4/30/2013 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSURAL 80 MASTIC 8/6/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 2157200 HEAVY DUTY PURE SILICONE 4/24/2001 0HMIS 41 *LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22LUPERSOL DDM-9 1/24/1997 2HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNLUPERSOL DHO-9 8/26/1985 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 2

Page 3: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ARI SANITIZER DEODORIZER II 1/1/2002 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 1157200 HEAVY DUTY PURE SILICONE 4/24/2001 0HMIS 41 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12CALCIUM HYDROXIDE CA(OH)2 10/2/2015 0HMIS 02 *LIQUID CALCIUM HYDROXIDE 1/1/2012 0HMIS 02 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02HETRON 922 4/26/1996 1NFPA 32IPEX REGULAR BODIED CLEAR PVC CEMENT 6/1/2001 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 3

Page 4: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

HETRON 197 P ACC CR 1/5/1996 2NFPA 32DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00BELZONA 1311(CERAMIC R-METAL)SOLIDIFIER 1/24/2001 1not given 1NDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 510C-350 EPOXY VINYL ESTER RES 3/7/2002 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNLUPERSOL DHO-9 8/26/1985 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 3129-05 (AIR DRY) 8/4/1996 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 4

Page 5: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ADHESIVE 520 5/22/1989 0NFPA 32AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32HETRON 922 4/26/1996 1NFPA 32IPEX CLEANER 6/1/2001 1NFPA 32IPEX REGULAR BODIED CLEAR PVC CEMENT 6/1/2001 1NFPA 32HETRON 197 P ACC CR 1/5/1996 2NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 510C-350 EPOXY VINYL ESTER RES 3/7/2002 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNGREEN CREVICE PASTE - MEKP CURE 3/30/1999 Nnot given NNGREEN LAY-UP RESIN - MEKP CURE 1/31/1995 Nnot given NNGREEN LINER PRE-MIX - MEKP CURE 7/10/1995 Nnot given NNLAMINATING RESIN, P & A SERIES 6/22/1999 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 5

Page 6: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 6

Page 7: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

REMINISCENT - METERED 12/9/1999 1HMIS 31ACETONE 9/29/2000 0HMIS 41SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *57200 HEAVY DUTY PURE SILICONE 4/24/2001 0HMIS 41 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22LUPERSOL DDM-9 1/24/1997 2HMIS 2229-05 (AIR DRY) 8/4/1996 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CALCIUM HYDROXIDE CA(OH)2 10/2/2015 0HMIS 02 *LIQUID CALCIUM HYDROXIDE 1/1/2012 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 7

Page 8: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNGOOSE CHASE AND FRUIT SHIELD 3/25/2004 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *1 1/2 OZ - 50" OCF CSM 5/10/2001 0NFPA 013M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11NALCLEAR 7768 FLOCCULANT 2/22/1999 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11GLYCERINE ALL GRADES 1/11/2007 1NFPA 11ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12BELZONA 1311(CERAMIC R-METAL)BASE 1/24/2001 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22ADHESIVE 520 5/22/1989 0NFPA 32AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32HETRON 922 4/26/1996 1NFPA 32IPEX CLEANER 6/1/2001 1NFPA 32IPEX REGULAR BODIED CLEAR PVC CEMENT 6/1/2001 1NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32HETRON 197 P ACC CR 1/5/1996 2NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 8

Page 9: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *BELZONA 1311(CERAMIC R-METAL)SOLIDIFIER 1/24/2001 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNARI SANITIZER DEODORIZER II 1/1/2002 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 510C-350 EPOXY VINYL ESTER RES 3/7/2002 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNESAB MILD STEEL COVERED ELECTRODES 4/30/2013 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGREEN CREVICE PASTE - MEKP CURE 3/30/1999 Nnot given NNGREEN LAY-UP RESIN - MEKP CURE 1/31/1995 Nnot given NNGREEN LINER PRE-MIX - MEKP CURE 7/10/1995 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSURAL 80 MASTIC 8/6/1999 Nnot given NNLAMINATING RESIN, P & A SERIES 6/22/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNLUPERSOL DHO-9 8/26/1985 Nnot given NNOCLANSORB 3/15/1994 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 9

Page 10: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

LUPERSOL DDM-9 1/24/1997 2HMIS 22LUPERSOL DHO-9 8/26/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Organic Peroxide

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ELECTROSTATIC PRECIPITATOR DUST 1/1/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 10

Page 11: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32HETRON 922 4/26/1996 1NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32HETRON 197 P ACC CR 1/5/1996 2NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *BELZONA 1311(CERAMIC R-METAL)BASE 1/24/2001 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *BELZONA 1311(CERAMIC R-METAL)SOLIDIFIER 1/24/2001 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNESAB MILD STEEL COVERED ELECTRODES 4/30/2013 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date Health

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 11

Page 12: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 2157200 HEAVY DUTY PURE SILICONE 4/24/2001 0HMIS 41 *LUPERSOL DDM-9 1/24/1997 2HMIS 22PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BELZONA 1311(CERAMIC R-METAL)SOLIDIFIER 1/24/2001 1not given 1N

HMIS/NFPA Flam React

LUPERSOL DDM-9 1/24/1997 2HMIS 2229-05 (AIR DRY) 8/4/1996 0HMIS 32LUPERSOL DHO-9 8/26/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 12

Page 13: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Air Control

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 13

Page 14: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CER-WOOL BULK 5/1/2002 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01KAOLITE 2500 LI 3/31/2009 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FIBERFRAX MOIST PAK-D 3/5/2007 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *INSWOOL HP BLANKET 8# 6/5/2001 0HMIS 01 *KAOWOOL BOARDS AND SHAPES 4/13/2006 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *KAOWOOL PYRO-BLOC, FIREMASTER, CERAFORM 3/16/2004 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *TR-19 INSULATION 11/15/2007 0HMIS 01 *VEE BLOCK/VEE BLOCK 35 11/9/1998 0HMIS 01 *FIBERFRAX ROPES BRAIDS WICK, TEXTILE 126 3/5/2007 0HMIS 11 *FLEXWEAVE 1000 TEXTILES 6/8/2007 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02KAOWOOL RT 10/21/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 14

Page 15: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13LN-903 LIQUID NAILS MULIT-PURP CONSTRUCT 2/5/2008 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01KAOWOOL PAPER, FLEX-WRAP 6/16/2011 0NFPA 01THERM-O-HOT PATCH 5/29/2009 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31FIBERFRAX DURABLANKET HP 10/20/2009 0NFPA 01 *FIBERFRAX PUMPABLE GS INSULATING MIX 12/30/2009 0NFPA 01 *FIBERFRAX TOPCOAT 2600 INSULATING MIX 12/30/2009 0NFPA 01 *KAOWOOL MOLDABLE 210 10/22/2014 0NFPA 01 *DRI-LITE 65A, 66A 11/19/1996 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PATRIOT HF FIRE BRICK 10/10/2007 0NFPA 02 *INSBOARD 2600 & 2600 HD 6/2/1997 NNFPA NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINOSILICATE FIBER TEXTILES 1/18/2005 Nnot given NNGREENLITE-26 2/27/1995 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSBLOK-19 11/5/2008 Nnot given NNMILBRO PASTE (F) 7/16/2009 Nnot given NNMORCOLITE DV-2 12/10/2001 Nnot given NNMORCOLITE DV-2 5/30/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 15

Page 16: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

SIFCA AL 8/10/1999 Nnot given NNTEMP-MAT 8/2/2000 Nnot given NNWIREMAX 60 7/25/2001 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *GREEN ANODES 8/31/2006 Nnot given NN *JOHN DEERE YELLOW EQUIPMENT ENAMEL 8/28/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNJOHN DEERE YELLOW EQUIPMENT ENAMEL 8/28/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DYNAMITE 234 PREMIUM GRADE HVY DUTY CLR 11/10/2006 0HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 16

Page 17: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NNPROPANE 3/21/2006 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNNOVUS PLASTIC POLISH #1 1/17/2007 Nnot given NNNOVUS PLASTIC POLISH #2 1/17/2007 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 17

Page 18: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

NOVUS PLASTIC POLISH #3 1/17/2007 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROPANE 3/21/2006 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNGREEN ANODES 8/31/2006 Nnot given NN *

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31DYNAMITE 234 PREMIUM GRADE HVY DUTY CLR 11/10/2006 0HMIS 12EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32ETHYL MERCAPTAN 3/29/2006 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 18

Page 19: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNPROPANE 3/21/2006 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DYNAMITE 234 PREMIUM GRADE HVY DUTY CLR 11/10/2006 0HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31PROPANE 3/21/2006 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 19

Page 20: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CALCINED FLUID PETROLEUM COKE 2/28/2006 0HMIS 01CALCINED FLUID PETROLEUM COKE 2/16/2010 0HMIS 01CALCINED PETROLEUM COKE 5/26/2006 0HMIS 01CER-WOOL BULK 5/1/2002 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SUPERWOOL - ALL GRADES 5/9/2008 0HMIS 01ROMAN PRO-732 WALLCOVERING ADHESIVE 1/1/2011 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11POLYETHYLENE SHEETING 10/1/2011 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11WHITE LIGHTNING HI HEAT RTV RED SILICONE 7/12/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 20

Page 21: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FIBERFRAX MOIST PAK-D 3/5/2007 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *INSWOOL HP BLANKET 8# 6/5/2001 0HMIS 01 *KAOWOOL BOARDS AND SHAPES 4/13/2006 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *KAOWOOL PYRO-BLOC, FIREMASTER, CERAFORM 3/16/2004 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *TR-19 INSULATION 11/15/2007 0HMIS 01 *VEE BLOCK/VEE BLOCK 35 11/9/1998 0HMIS 01 *FIBERFRAX ROPES BRAIDS WICK, TEXTILE 126 3/5/2007 0HMIS 11 *FLEXWEAVE 1000 TEXTILES 6/8/2007 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02KAOWOOL RT 10/21/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02DYNAMITE 234 PREMIUM GRADE HVY DUTY CLR 11/10/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 21

Page 22: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13LN-903 LIQUID NAILS MULIT-PURP CONSTRUCT 2/5/2008 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCOKE 6/1/1995 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01KAO-TEX 1000 CLOTH 6/18/2008 0NFPA 01KAOWOOL PAPER, FLEX-WRAP 6/16/2011 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01THERM-O-HOT PATCH 5/29/2009 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41FIBERFRAX DURABLANKET HP 10/20/2009 0NFPA 01 *FIBERFRAX PUMPABLE GS INSULATING MIX 12/30/2009 0NFPA 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 22

Page 23: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FIBERFRAX TOPCOAT 2600 INSULATING MIX 12/30/2009 0NFPA 01 *KAOWOOL MOLDABLE 210 10/22/2014 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *DRI-LITE 65A, 66A 11/19/1996 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42PATRIOT HF FIRE BRICK 10/10/2007 0NFPA 02 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *INSBOARD 2600 & 2600 HD 6/2/1997 NNFPA NNDURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINOSILICATE FIBER TEXTILES 1/18/2005 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGREENLITE-26 2/27/1995 Nnot given NNHAND-AID 8/20/2003 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 23

Page 24: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSBLOK-19 11/5/2008 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMAXSIL CF6-2000 CERAMIC FREE BLANKET 10/1/1999 Nnot given NNMILBRO PASTE (F) 7/16/2009 Nnot given NNMORCOCAST 95C-0 5/11/2004 Nnot given NNMORCOLITE DV-2 12/10/2001 Nnot given NNMORCOLITE DV-2 5/30/2002 Nnot given NNNOVUS PLASTIC POLISH #1 1/17/2007 Nnot given NNNOVUS PLASTIC POLISH #2 1/17/2007 Nnot given NNNOVUS PLASTIC POLISH #3 1/17/2007 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIFCA AL 8/10/1999 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTEMP-MAT 8/2/2000 Nnot given NNTREO THERMAL BLANKET TRE-130 4/12/2004 Nnot given NNTREO VITREOUS SILICATE NEEDLED BLANKET 9/10/2004 Nnot given NNWIREMAX 60 7/25/2001 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *GREEN ANODES 8/31/2006 Nnot given NN *JOHN DEERE YELLOW EQUIPMENT ENAMEL 8/28/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01WHITE LIGHTNING HI HEAT RTV RED SILICONE 7/12/2002 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 24

Page 25: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11WHITE LIGHTNING HI HEAT RTV RED SILICONE 7/12/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 25

Page 26: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNGREEN ANODES 8/31/2006 Nnot given NN *

WHITE LIGHTNING HI HEAT RTV RED SILICONE 7/12/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMORCOCAST 95C-0 5/11/2004 Nnot given NNMORCOLITE DV-2 12/10/2001 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 26

Page 27: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

MORCOLITE DV-2 5/30/2002 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 27

Page 28: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Bake

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 28

Page 29: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ANTI SPLATTER COMPOUND NO. 65 7/2/2003 0HMIS 10ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11NATURAL GRAPHITE 1/1/2003 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ALCOR 5/15/2001 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *INSWOOL PAPER #10 6/1/2001 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02DRI-LITE 94A 8/2/2002 1HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42DRI-VIBE (ALL VARIETIES) 10/27/2009 0HMIS 02 *NOXRAM 85P, 85PF, 85P FINE, 85P-RM 10/1/2000 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 29

Page 30: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *INT/EXT IND GLOSS OIL SAFE/BRILLIANT RED 2/25/2013 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *INT/EXT IND GLOSS OIL SAFE/BRLLNT YELLOW 7/7/2013 0HMIS 32 *INT/EXT IND GLOSS OIL SAFE/REGAL BLUE 6/30/2013 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRONACAST 211 8/1/1996 0NFPA 00PALCO 450 3/20/2007 0NFPA 00ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABG PURIFIED EXPANDED GRAPHITE POWDER 3/24/2008 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01NATURAL GRAPHITE 1/20/1999 0NFPA 01NATURAL GRAPHITE 2/9/2009 0NFPA 01PURIFIED NATURAL GRAPHITE 2/10/2009 0NFPA 01PURIFIED NATURAL GRAPHITE 2/21/2012 0NFPA 01DURATAB MORTAR 2/14/2000 NNFPA 01QS3000 SERIES 11/12/2001 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31ALUNDUM WHEEL 2/8/2002 0NFPA 01 *QUICK-CUP 100, 200 & 400 11/12/2001 0NFPA 01 *HI-PACT ELECTRODE 4/24/2009 0NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINOSILICATE FIBER TEXTILES 6/18/1999 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOBART BROTHERS 811N2 WELDING WIRE 5/8/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 30

Page 31: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

HOT ROLLED CARBON STEEL 1/18/2007 Nnot given NNRENO CAST FS 6/15/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L 4/1/2002 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *NI-ROD 55 WELDING ELECTRODE 1/1/2005 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *STEEL 11/5/1999 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11ATLAS COPCO MEISSEL PASTE 10/19/2005 0HMIS 21BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22INT/EXT IND GLOSS OIL SAFE/BRILLIANT RED 2/25/2013 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *INT/EXT IND GLOSS OIL SAFE/BRLLNT YELLOW 7/7/2013 0HMIS 32 *INT/EXT IND GLOSS OIL SAFE/REGAL BLUE 6/30/2013 0HMIS 32 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Tradename MSDS Date Health

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 31

Page 32: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42OXYGEN 3/22/2000 0NFPA 00CRAZY CLEAN 1/3/2012 0NFPA 11POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PENETRATING OIL 6/9/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

HMIS/NFPA Flam React

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 32

Page 33: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

DURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNMETAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L 4/1/2002 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42WELDERS BLACK MAGIC 5/12/2006 1HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 33

Page 34: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00ANTI SPLATTER COMPOUND NO. 65 7/2/2003 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 34

Page 35: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01CREST ANTI-SPATTER ULTRA 200 NOZZLE SHLD 7/1/2006 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01POWER CLEANER 155 3/21/2000 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11NATURAL GRAPHITE 1/1/2003 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ATLAS COPCO MEISSEL PASTE 10/19/2005 0HMIS 21BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1ALCOR 5/15/2001 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 35

Page 36: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

INSWOOL PAPER #10 6/1/2001 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02DRI-LITE 94A 8/2/2002 1HMIS 02THERMAL ARC TORCH COOLANT 11/14/2000 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42WELDERS BLACK MAGIC 5/12/2006 1HMIS 42DRI-VIBE (ALL VARIETIES) 10/27/2009 0HMIS 02 *NOXRAM 85P, 85PF, 85P FINE, 85P-RM 10/1/2000 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *INT/EXT IND GLOSS OIL SAFE/BRILLIANT RED 2/25/2013 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 36

Page 37: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

INT/EXT IND GLOSS OIL SAFE/BRLLNT YELLOW 7/7/2013 0HMIS 32 *INT/EXT IND GLOSS OIL SAFE/REGAL BLUE 6/30/2013 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TRIADINE 20 INDUSTRIAL MICROBIOSTAT 1/10/2005 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCRONACAST 211 8/1/1996 0NFPA 00C501 1/15/2013 0NFPA 10EXTRA COOL 12/12/2007 0NFPA 10SHELL ALVANIA GREASE EP(LF) 2 6/24/2009 0NFPA 10ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ABG PURIFIED EXPANDED GRAPHITE POWDER 3/24/2008 0NFPA 01ALUNDUM WHEEL 4/6/2000 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DESULCO 9000 SERIES PURIFIED CARBON 3/24/2008 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01KAO-TEX 1000 CLOTH 6/18/2008 0NFPA 01NATURAL GRAPHITE 1/20/1999 0NFPA 01NATURAL GRAPHITE 2/9/2009 0NFPA 01NOCHAR'S FIRE PREVENTER (NFP) 1/15/2013 0NFPA 01PURIFIED NATURAL GRAPHITE 2/10/2009 0NFPA 01PURIFIED NATURAL GRAPHITE 2/21/2012 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SURECOAT 1530 4/6/2000 0NFPA 01SYNTHETIC GRAPHITE 3/24/2008 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01DURATAB MORTAR 2/14/2000 NNFPA 01CIMPERIAL 1070 5/5/2000 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 37

Page 38: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PENETRATING OIL 6/9/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ALUNDUM WHEEL 2/8/2002 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *HI-PACT ELECTRODE 4/24/2009 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01ANTHRACITIC CATHODE BLOCKS 12/9/1994 1not given 01BAKED CATHODE BLOCKS WITH GRAPHITE 3/4/2008 1not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINOSILICATE FIBER TEXTILES 6/18/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 38

Page 39: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BGF MAT, BGF MAT II 1/2/2002 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCAST STEEL SHOT,LOW CARBON CAST STL SHOT 1/1/2003 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCRUSHED BATH 1/5/2011 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNEL CARB 100 3/1/2000 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGRAPHITIC CATHODE BLOCKS 3/1/2012 Nnot given NNGRAPHITIZED PETROLEUM COKE 12/4/2004 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOBART BROTHERS 811N2 WELDING WIRE 5/8/2008 Nnot given NNLIQUID ADDITIVE 5/10/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNRENO CAST FS 6/15/1999 Nnot given NNRFU 112 9/11/1991 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSTEEL NUGGETS 1/1/1985 Nnot given NNSYNTHETIC GRAPHITE 3/1/2000 Nnot given NNSYNTHETIC GRAPHITE 7/1/2001 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L 4/1/2002 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 39

Page 40: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NI-ROD 55 WELDING ELECTRODE 1/1/2005 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *STEEL 11/5/1999 Nnot given NN *

OXYGEN 3/22/2000 0NFPA 00NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ANTI SPLATTER COMPOUND NO. 65 7/2/2003 0HMIS 10ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02THERMAL ARC TORCH COOLANT 11/14/2000 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 40

Page 41: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L 4/1/2002 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *

ANTI SPLATTER COMPOUND NO. 65 7/2/2003 0HMIS 10NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21THERMAL ARC TORCH COOLANT 11/14/2000 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRONACAST 211 8/1/1996 0NFPA 00PALCO 450 3/20/2007 0NFPA 00ALUNDUM WHEEL 2/8/2002 0NFPA 01 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNMETAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L 4/1/2002 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *NI-ROD 55 WELDING ELECTRODE 1/1/2005 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 41

Page 42: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

STEEL 11/5/1999 Nnot given NN *

ANTI SPLATTER COMPOUND NO. 65 7/2/2003 0HMIS 10ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21ALCOR 5/15/2001 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *INSWOOL PAPER #10 6/1/2001 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *ALUMINOSILICATE FIBER TEXTILES 6/18/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32BASIC PIG IRON 1/1/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 42

Page 43: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNFOUNDRY PIG IRON 1/1/1985 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 43

Page 44: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carbon Rodding

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 44

Page 45: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

VALSPAR 7 206267 A TRD SG RED BASE 9/29/2003 0HMIS 1SHEETROCK LIGHTWEIGHT SETTING-TYPE JOINT 3/26/1998 0HMIS 00ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BM FRESH START ALL PURPOSE 100 ACRYL 1/19/2001 0HMIS 01FIBER GLASS INSULATION 5/1/1996 0HMIS 01STUDIO FINISHES CHALKBOARD PAINT 3/29/2002 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11PORTER GUARD FD ALKYD EN-LIGHT PP2749 6/19/2010 0HMIS 21MOORE ALL PURPOSE ALUM PAINT 138, C138 9/1/1990 1HMIS 21CEILING WHITE PAINT PP9585 9/29/2004 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *PORTER GUARD FD ENAMEL-B (PP2728) 9/10/2004 0HMIS 21 *PORTER GUARD HIGH HEAT AL PP1503 (0878) 8/27/2004 1HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02EMBECO 885 GROUT 10/1/1997 0HMIS 02KRYLON H2O LATEX AEROSOL ARTIC WHITE 1/6/2007 0HMIS 02MACROPOXY 646 FAST CURE HRDNR PART B 8/2/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SANDED GROUT 5/11/1994 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02NP 1 CAULK 7/5/2006 0HMIS 12VALSPAR 007 0206275 A TRD SG BLU BASE 9/30/2003 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12INDUSTRIAL ENAMEL PURE WHITE 1/7/2007 0HMIS 22MINWAX FAST-DRYING POLYURETHANE CLR SAT 11/7/2007 0HMIS 22SL 1 SEALANT 6/29/2006 0HMIS 22WOOD GUARDIAN CL AMERICAN PP302 8/10/2004 0HMIS 22ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32DYNAMITE 760 VINYL WALLCOVERING ADHESIVE 11/10/2006 0HMIS 42KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 45

Page 46: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PITTBULL ATHLETIC YELLOW FIELD MARKING 3/18/2002 1HMIS 42PITTBULL SAFETY YELLOW INVERTED 3/18/2002 1HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *MOORE SAFETY & ZONE MARKING LATEX, M58 2/1/2000 0HMIS 12 *PORTER PHTHALO BLUE 8/8/1996 0HMIS 12 *ZAR PAINT & VARNISH REMOVER, 275 7/1/2001 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QK FLAKES BLUE 12/4/2007 1HMIS 12 *VALSPAR 7 206272 A TRD SG YLO BASE 6/7/2005 1HMIS 12 *BENWOOD INT WOOD FIN POLYURETHANE 2/24/2006 0HMIS 22 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *INT/EXT RUST INHIBITIVE PRIMER WHT 7-852 7/4/2010 0HMIS 22 *MINWAX WOOD FINISH (VARIOUS WOOD TONES) 3/19/2003 0HMIS 22 *MINWAX WOOD FINISH FRUITWOOD 9/29/2007 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT 2754 1/2/2008 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22 11/12/1992 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22, NM22 7/19/2001 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *QK GAR EPOXY PART B 8/19/2008 1HMIS 22 *SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *THINNER EPOXY PAINT 97-725 4/26/2005 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 46

Page 47: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *MULTIPRIME LOW VOC MEDIUM 10/17/2005 0HMIS 24 *PITT-TECH GLOSS LTX DEEP 7/21/2005 0HMIS 24 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01VACUUM-FORMED INSULATION 1/13/1998 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31PERMA-CRETE HI BUILD TOPCOAT WHITE 8/20/2011 0NFPA 11 *PORTERGUARD FD ALKYD ENML PP2710 9/10/2004 0NFPA 21 *DTM ACRYLIC GLOSS ENAMEL 11/7/2000 0NFPA 023M IMPERIAL MICROFINISHING COMPOUND LIQ 2/11/1997 0NFPA 22WOOD GUARDIAN INT POLY CLEAR (PP316) 5/21/2004 0NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32THURMALOX GRAY 5/16/2002 0not given 22PPG DELSTAR ACRYLIC ENAMEL DAR-1 1/3/1996 0not given 32CONSTRUCTION GROUT 5/9/1998 0not given 0N1 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NNACRI-SHIELD GLOSS BLACK, 610 2/1/1999 Nnot given NNACRYLIC EXTERIOR PAINT 517, 518, 519,... 6/21/1993 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNBLANKIT INTERIOR LATEX PRIMER WHITE 1129 3/14/2003 Nnot given NNBLANKIT PRIMER 1127 DEEP BASE/1129 WHITE 12/21/1994 Nnot given NNGLYPTEX EGGSHELL INT OIL LIGHT BASE 439 2/15/2001 Nnot given NNHENRY 430 CLEARPRO TILE ADHESIVE 10/1/2011 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHI-HIDE INTERIOR LATEX DEEP BASE 108 8/22/2002 Nnot given NNHI-HIDE SEMI GLOSS PAST 105 7/8/2005 Nnot given NNHI-HIDE WALL & TRIM PAINT PASTEL BASE 4/9/1999 Nnot given NNINDUSTRIAL DTM EPOXY MASTIC ALUMINUM 8/16/2006 Nnot given NNLAFARGE JOINT COMPOUND READY MIX 3/1/2008 Nnot given NNLATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNLITE WEIGHT 3-LIGHTWEIGHT BODYFILLER 9/1/1994 Nnot given NNMIRRO-MASTIC 8/9/1993 Nnot given NNOIL SATIN POLY 12/31/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 47

Page 48: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

PORTER GLAZE 4000 WHITE "B" 10/13/1998 Nnot given NNPORTER GLAZE 4000 WHITE BASE, PC4015A 10/13/1998 Nnot given NNPORTER GLAZE 4300 CONVERTER, PC4346B 10/14/1998 Nnot given NNPORTER GUARD ALKYD METAL PRIMER RED 272 1/27/2003 Nnot given NNPORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNPORTER GUARD DTM ACRYLC GLS ENML BLK2928 10/3/2000 Nnot given NNPORTER GUARD FD GLOSS EN-DEEP BS PP2750 1/14/2010 Nnot given NNPORTER WOOD GUARDIAN ACRYLIC COLOR STAIN 12/7/1999 Nnot given NNPORTERGUARD FD ALKYD ENML ULT DP BS,2744 8/20/2002 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNPORTERMASTIC 7900 ALUMINUM, PC7903A 10/20/1998 Nnot given NNQUIK-FIL 900 LATEX BLOCK FILLER, 9203 7/28/1999 Nnot given NNTRAFFIC PAINT 409 YELLOW 1/22/1993 Nnot given NNTRAFFIC PAINT 412 YELLOW 4/27/1995 Nnot given NNVAL ULTRA PREM INT FLT ENAM BASE 2 4/16/2007 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNWOOD GUARDIAN SATIN URETHANE VARNISH,CLR 12/7/1999 Nnot given NNXD BASE 1027/WHITE 1029 5/9/1995 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *MEGASEAL NSP PAINT 4/18/2008 Nnot given NN *PORTER GLAZE 4300 GRAY, PC4301A 1/18/1999 Nnot given NN *PORTERGUARD ALKYD METAL PRIMER-WHITE 276 8/21/2002 Nnot given NN *PORTERMASTIC 7000 CONVERTER, PC7046B 5/22/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *WOOD GUARDIAN CLASSIC AMERICAN (PP302) 3/5/2004 Nnot given NN *

530 CLEAR ADHESIVE THIN SPREAD 11/15/2002 0HMIS 01SOUTHLAND FLOORING ADHESIVE 330 8/12/1992 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21BULLS EYE ODORLESS PRIMER SEALER 10/1/1999 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 48

Page 49: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

PORTER GUARD FD ALKYD EN-LIGHT PP2749 6/19/2010 0HMIS 21MOORE ALL PURPOSE ALUM PAINT 138, C138 9/1/1990 1HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MOORE SATIN IMPERVO SOLVENT THINNED, 235 9/1/1990 0HMIS 21 *PORTER GUARD FD ENAMEL-B (PP2728) 9/10/2004 0HMIS 21 *PORTER GUARD HIGH HEAT AL PP1503 (0878) 8/27/2004 1HMIS 21 *NP 1 CAULK 7/5/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12INDUSTRIAL ENAMEL PURE WHITE 1/7/2007 0HMIS 22MINERAL SPIRITS 4/8/2008 0HMIS 22MINWAX FAST-DRYING POLYURETHANE CLR SAT 11/7/2007 0HMIS 22PENETROL/MARINE PENETROL 9/11/1995 0HMIS 22PORTER GUARD F.D. ALKYD ENML PAINT 12/23/2007 0HMIS 22SILICONE ALKYD GLOSS ENML NUTRL BASE 10/4/2004 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22WOOD GUARDIAN CL AMERICAN PP302 8/10/2004 0HMIS 22ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22BENWOOD INT WOOD FIN POLYURETHANE 2/24/2006 0HMIS 22 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *INT/EXT RUST INHIBITIVE PRIMER WHT 7-852 7/4/2010 0HMIS 22 *MINWAX WOOD FINISH (VARIOUS WOOD TONES) 3/19/2003 0HMIS 22 *MINWAX WOOD FINISH FRUITWOOD 9/29/2007 0HMIS 22 *MINWAX WOOD FINISH, RED MAHOGANY 9/29/2007 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT 2754 1/2/2008 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22 11/12/1992 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22, NM22 7/19/2001 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *QK GAR EPOXY PART B 8/19/2008 1HMIS 22 *IND. URETHANE YELLOW TINT BASE 11/21/2006 0HMIS 23INDUST. DTM URETHANE MASTIC ACTIVATOR 1/26/2005 0HMIS 23ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23MULTIPRIME LOW VOC MEDIUM 10/17/2005 0HMIS 24 *PITT-TECH GLOSS LTX DEEP 7/21/2005 0HMIS 24 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 49

Page 50: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21PORTERGUARD FD ALKYD ENML PP2710 9/10/2004 0NFPA 21 *3M IMPERIAL MICROFINISHING COMPOUND LIQ 2/11/1997 0NFPA 22WOOD GUARDIAN INT POLY CLEAR (PP316) 5/21/2004 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32THURMALOX GRAY 5/16/2002 0not given 221 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NN215-15 BLAZE ORANGE ALKYD PAINT 2/4/2000 Nnot given NN3M MACHINE RUBBING COMPOUND 9/17/1987 Nnot given NNCOMMERCIAL/IND. FAST DRY GLS ALKYD ENML 4/3/1993 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNGLYPTEX EGGSHELL INT OIL LIGHT BASE 439 2/15/2001 Nnot given NNGLYPTEX INTERIOR/EXTERIOR OIL, 4139 8/20/2002 Nnot given NNHIGH PERFORM EPOXY MASTIC ACTIVATOR 9101 8/16/2006 Nnot given NNINDUSTRIAL DTM EPOXY MASTIC ALUMINUM 8/16/2006 Nnot given NNINTERLAC 645 LIGHT BASE 11/11/1996 Nnot given NNINTERLAC 645 SAFETY RED 11/11/1996 Nnot given NNINTERTHERM 503 (1503 HIGH HEAT COATING) 1/7/1994 Nnot given NNMIRRO-MASTIC 8/9/1993 Nnot given NNOIL SATIN POLY 12/31/2008 Nnot given NNPORTER GUARD ALKYD METAL PRIMER RED 272 1/27/2003 Nnot given NNPORTER GUARD FD GLOSS EN-DEEP BS PP2750 1/14/2010 Nnot given NNPORTER SPEEDY-PRIME, 74130 9/29/1999 Nnot given NNPORTERGUARD FD ALKYD ENML ULT DP BS,2744 8/20/2002 Nnot given NNPORTERGUARD FD ALKYD ENML ULTRA DP BASE 8/20/2002 Nnot given NNPORTERMASTIC 7900 ALUMINUM, PC7903A 10/20/1998 Nnot given NNPPG GRAY EPOXY ANTI SLIP 8/3/2004 Nnot given NNPPG YELLOW EPOXY ANTI SLIP 8/3/2004 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNVAL ULTRA PREM INT FLT ENAM BASE 2 4/16/2007 Nnot given NNWOOD GUARDIAN SATIN URETHANE VARNISH,CLR 12/7/1999 Nnot given NNWOOD STAIN CLEAR BASE 832 8/8/1991 Nnot given NNMEGASEAL NSP PAINT 4/18/2008 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 50

Page 51: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

PORTERGUARD ALKYD METAL PRIMER-WHITE 276 8/21/2002 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *WOOD GUARDIAN CLASSIC AMERICAN (PP302) 3/5/2004 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22DYNAMITE 760 VINYL WALLCOVERING ADHESIVE 11/10/2006 0HMIS 42KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PITTBULL ATHLETIC YELLOW FIELD MARKING 3/18/2002 1HMIS 42PITTBULL SAFETY YELLOW INVERTED 3/18/2002 1HMIS 42MAJIC RUST KILL GRAY PRIMER 9/24/2001 NHMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NNPORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNRUST-OLEUM PRO OIL BASED ENMLS-TOPCOATS 9/21/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 51

Page 52: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

SHEETROCK LIGHTWEIGHT SETTING-TYPE JOINT 3/26/1998 0HMIS 00CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02EMBECO 885 GROUT 10/1/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32KLEAN-STRIP MURIATIC ACID 12/19/2005 1HMIS 03MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00CONSTRUCTION GROUT 5/9/1998 0not given 0N1 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNINTERGARD 251 GRAY, 4901B 11/11/1996 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNPORTERMASTIC 7900 CONVERTER, PC7946B 10/21/1998 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

CARTRIDGE FOR POWER DEVICE 8/17/1993 4HMIS 20

Tradename MSDS Date HMIS/NFPA Health Flam React

Explosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 52

Page 53: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

GTA103 THINNER (T-3) 11/10/1993 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PORTER 5131 SPRAY THINNER 7/13/2000 0HMIS 31PORTER 5132 PAINT THINNER 12/12/2000 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31MACROPOXY 646 FAST CURE HRDNR PART B 8/2/2009 0HMIS 02ACRYLIC ENAMEL REDUCER (COOL TEMP.) 1/3/1996 0HMIS 32DAP ORIGINAL CONTACT CEMENT 8/11/1999 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32DYNAMITE 760 VINYL WALLCOVERING ADHESIVE 11/10/2006 0HMIS 42KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PITTBULL ATHLETIC YELLOW FIELD MARKING 3/18/2002 1HMIS 42PITTBULL SAFETY YELLOW INVERTED 3/18/2002 1HMIS 42MAJIC RUST KILL GRAY PRIMER 9/24/2001 NHMIS 42SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *THINNER EPOXY PAINT 97-725 4/26/2005 0HMIS 32 *MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 53

Page 54: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31PPG DELSTAR ACRYLIC ENAMEL DAR-1 1/3/1996 0not given 32URETHANE FISHEYE PREVENTER 12/12/1995 0not given N2ACRYLIC BONDING PRIMER 515-WHITE 4/3/1995 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCONCEPT 2020 CC, DCU2020 9/11/1995 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNINTERGARD 251 GRAY, 4901B 11/11/1996 Nnot given NNLITE WEIGHT 3-LIGHTWEIGHT BODYFILLER 9/1/1994 Nnot given NNPORTER GLAZE 4000 WHITE "B" 10/13/1998 Nnot given NNPORTER GLAZE 4000 WHITE BASE, PC4015A 10/13/1998 Nnot given NNPORTER GLAZE 4300 CONVERTER, PC4346B 10/14/1998 Nnot given NNPORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNRUST-OLEUM PRO OIL BASED ENMLS-TOPCOATS 9/21/2004 Nnot given NNTRAFFIC PAINT 409 YELLOW 1/22/1993 Nnot given NNTRAFFIC PAINT 412 YELLOW 4/27/1995 Nnot given NNTURPENTINE 6/23/1995 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NNXD BASE 1027/WHITE 1029 5/9/1995 Nnot given NNMEGASEAL NSP PAINT 4/18/2008 Nnot given NN *PORTER GLAZE 4300 GRAY, PC4301A 1/18/1999 Nnot given NN *PORTERMASTIC 7000 CONVERTER, PC7046B 5/22/2000 Nnot given NN *T-1 EPOXY THINNER CLEAR, PC5100 11/6/2001 Nnot given NN *

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DYNAMITE 760 VINYL WALLCOVERING ADHESIVE 11/10/2006 0HMIS 42KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 54

Page 55: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PITTBULL ATHLETIC YELLOW FIELD MARKING 3/18/2002 1HMIS 42PITTBULL SAFETY YELLOW INVERTED 3/18/2002 1HMIS 42MAJIC RUST KILL GRAY PRIMER 9/24/2001 NHMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31PORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNRUST-OLEUM PRO OIL BASED ENMLS-TOPCOATS 9/21/2004 Nnot given NN

COLOR PUTTY NAILHOLE FILLER 1/1/2001 0HMIS 00EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SHEETROCK LIGHTWEIGHT SETTING-TYPE JOINT 3/26/1998 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10CARTRIDGE FOR POWER DEVICE 8/17/1993 4HMIS 20ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ACRYLIC W/B (TTP-1952B) L.F. YELLOW 2412 5/19/1999 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BM FRESH START ALL PURPOSE 100 ACRYL 1/19/2001 0HMIS 01BTN COVE BASE CONSTRUCTION ADHESIVE 9/12/2007 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 55

Page 56: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01DRYLOK STUCCO PAINT-LIGHT TINT BASE, 109 7/1/2001 0HMIS 01ELMER'S CARPENTERS WOOD GLUE 6/16/1999 0HMIS 01FIBER GLASS INSULATION 5/1/1996 0HMIS 01GOJO PRO PAINT & STAIN HAND CLEANER 11/5/2004 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01MOORCRAFT LATEX ENML UNDERCOATER&PRIMER 1/23/1995 0HMIS 01MOORES LATEX ENAMEL UNDERBODY 345 6/25/1990 0HMIS 01MOORGLO LATEX HOUSE & TRIM PAINT 6/25/1990 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PORTER ACRYLIC W/B WHITE, 2408 5/19/1999 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01STUDIO FINISHES CHALKBOARD PAINT 3/29/2002 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11D-740 SERIES WALL ADHESIVE 8/24/2011 0HMIS 11DAP 33 GLAZING COMPOUND 7/27/2006 0HMIS 11DAP BEATS THE NAIL GEN PURP CONST ADHES 8/29/2007 0HMIS 11HENRY 440 COVE BASE ADHESIVE 6/25/2010 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21BULLS EYE ODORLESS PRIMER SEALER 10/1/1999 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21PORTER GUARD FD ALKYD EN-LIGHT PP2749 6/19/2010 0HMIS 21MOORE ALL PURPOSE ALUM PAINT 138, C138 9/1/1990 1HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21GTA103 THINNER (T-3) 11/10/1993 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PORTER 5131 SPRAY THINNER 7/13/2000 0HMIS 31

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 56

Page 57: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PORTER 5132 PAINT THINNER 12/12/2000 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1CEILING WHITE PAINT PP9585 9/29/2004 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *PORTER EXTERIOR RED 11/15/1995 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *MOORE SATIN IMPERVO SOLVENT THINNED, 235 9/1/1990 0HMIS 21 *PORTER GUARD FD ENAMEL-B (PP2728) 9/10/2004 0HMIS 21 *PORTER GUARD HIGH HEAT AL PP1503 (0878) 8/27/2004 1HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02EMBECO 885 GROUT 10/1/1997 0HMIS 02KRYLON H2O LATEX AEROSOL ARTIC WHITE 1/6/2007 0HMIS 02MACROPOXY 646 FAST CURE HRDNR PART B 8/2/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SANDED GROUT 5/11/1994 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02NP 1 CAULK 7/5/2006 0HMIS 12VALSPAR 007 0206275 A TRD SG BLU BASE 9/30/2003 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12VALSPAR 7 20055 A TRD EXT LX SG BASE 4 7/6/2004 1HMIS 12INDUSTRIAL ENAMEL PURE WHITE 1/7/2007 0HMIS 22MINERAL SPIRITS 4/8/2008 0HMIS 22MINWAX FAST-DRYING POLYURETHANE CLR SAT 11/7/2007 0HMIS 22PENETROL/MARINE PENETROL 9/11/1995 0HMIS 22PORTER GUARD F.D. ALKYD ENML PAINT 12/23/2007 0HMIS 22SILICONE ALKYD GLOSS ENML NUTRL BASE 10/4/2004 0HMIS 22SL 1 SEALANT 6/29/2006 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22WOOD GUARDIAN CL AMERICAN PP302 8/10/2004 0HMIS 22ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22ACRYLIC ENAMEL REDUCER (COOL TEMP.) 1/3/1996 0HMIS 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 57

Page 58: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DAP ORIGINAL CONTACT CEMENT 8/11/1999 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32DYNAMITE 760 VINYL WALLCOVERING ADHESIVE 11/10/2006 0HMIS 42KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PITTBULL ATHLETIC YELLOW FIELD MARKING 3/18/2002 1HMIS 42PITTBULL SAFETY YELLOW INVERTED 3/18/2002 1HMIS 42MAJIC RUST KILL GRAY PRIMER 9/24/2001 NHMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *MOORE SAFETY & ZONE MARKING LATEX, M58 2/1/2000 0HMIS 12 *PORTER PHTHALO BLUE 8/8/1996 0HMIS 12 *ZAR PAINT & VARNISH REMOVER, 275 7/1/2001 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QK FLAKES BLUE 12/4/2007 1HMIS 12 *VALSPAR 7 206272 A TRD SG YLO BASE 6/7/2005 1HMIS 12 *BENWOOD INT WOOD FIN POLYURETHANE 2/24/2006 0HMIS 22 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *INT/EXT RUST INHIBITIVE PRIMER WHT 7-852 7/4/2010 0HMIS 22 *MINWAX WOOD FINISH (VARIOUS WOOD TONES) 3/19/2003 0HMIS 22 *MINWAX WOOD FINISH FRUITWOOD 9/29/2007 0HMIS 22 *MINWAX WOOD FINISH, RED MAHOGANY 9/29/2007 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT 2754 1/2/2008 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22 11/12/1992 0HMIS 22 *URETHANE ALKYD GLOSS ENAMEL M22, NM22 7/19/2001 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 58

Page 59: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *THINNER EPOXY PAINT 97-725 4/26/2005 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *KLEAN-STRIP MURIATIC ACID 12/19/2005 1HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH GLOSS ACRYLIC ENAMEL 90-330 7/4/2010 0HMIS 13PITT-TECH GLOSS DEEP RUSTIC 7/16/2010 0HMIS 13PITT-TECH GLOSS ENAMEL 90-306 7/4/2010 0HMIS 13PITT-TECH GLOSS MIDTONE 90-375/01 7/4/2010 0HMIS 13PITT-TECH GLOSS WHITE PAINT 2/23/2010 0HMIS 13PITT-TECH INHIBITIVE ACRYLIC PRIMER 10/15/2010 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13IND. URETHANE YELLOW TINT BASE 11/21/2006 0HMIS 23INDUST. DTM URETHANE MASTIC ACTIVATOR 1/26/2005 0HMIS 23ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *MULTIPRIME LOW VOC MEDIUM 10/17/2005 0HMIS 24 *PITT-TECH GLOSS LTX DEEP 7/21/2005 0HMIS 24 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01VACUUM-FORMED INSULATION 1/13/1998 0NFPA 01100% RTV SILICONE SEALANT - ALL 6/1/2001 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11DAP DOW CORNING TRADE MATE II 8/30/1994 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11PORTER GUARD DTM ACR GL SAFETY RED 2912 9/9/2004 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 59

Page 60: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PERMA-CRETE HI BUILD TOPCOAT WHITE 8/20/2011 0NFPA 11 *PORTERGUARD FD ALKYD ENML PP2710 9/10/2004 0NFPA 21 *DTM ACRYLIC GLOSS ENAMEL 11/7/2000 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 123M IMPERIAL MICROFINISHING COMPOUND LIQ 2/11/1997 0NFPA 22WOOD GUARDIAN INT POLY CLEAR (PP316) 5/21/2004 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31THURMALOX GRAY 5/16/2002 0not given 22PPG DELSTAR ACRYLIC ENAMEL DAR-1 1/3/1996 0not given 32URETHANE FISHEYE PREVENTER 12/12/1995 0not given N2CONSTRUCTION GROUT 5/9/1998 0not given 0N1 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NN215-15 BLAZE ORANGE ALKYD PAINT 2/4/2000 Nnot given NN3M MACHINE RUBBING COMPOUND 9/17/1987 Nnot given NNACRI-SHIELD BONDING PRIMER-WHITE 7/8/2010 Nnot given NNACRI-SHIELD EXT. ACRYLIC LIGHT BASE 739 2/26/2003 Nnot given NNACRI-SHIELD FLAT - ULTRADEEP BASE PAINT 7/7/2010 Nnot given NNACRI-SHIELD GLOSS BLACK, 610 2/1/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 60

Page 61: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ACRI-SHIELD GLOSS LIGHT BASE 6/10/2010 Nnot given NNACRI-SHIELD GLOSS UD BASE PAINT 1/21/2010 Nnot given NNACRYLIC BONDING PRIMER 515-WHITE 4/3/1995 Nnot given NNACRYLIC EXTERIOR PAINT 517, 518, 519,... 6/21/1993 Nnot given NNACRYLIC GLOSS EXT PAINT, 610,617,618,... 4/14/1993 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANT. 900 INT/EXT LATEX LIGHT BASE 919 4/25/2003 Nnot given NNADVANT. 900 INT/EXT LATEX PASTEL BASE905 2/28/2001 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNADVANTAGE 900 INT/EXT LATEX DEEP BASE908 3/13/2001 Nnot given NNADVANTAGE 900 INT/EXT LTX LIGHT BASE,909 3/27/2003 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBLANKIT INTERIOR LATEX PRIMER WHITE 1129 3/14/2003 Nnot given NNBLANKIT PRIMER 1127 DEEP BASE/1129 WHITE 12/21/1994 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCOMMERCIAL/IND. FAST DRY GLS ALKYD ENML 4/3/1993 Nnot given NNCONCEPT 2020 CC, DCU2020 9/11/1995 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDRY WALL SEALER 426-WHITE 4/3/1995 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFLOETROL 9/1/1999 Nnot given NNGLYPTEX EGGSHELL INT OIL LIGHT BASE 439 2/15/2001 Nnot given NNGLYPTEX INTERIOR/EXTERIOR OIL, 4139 8/20/2002 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHENRY 430 CLEARPRO TILE ADHESIVE 10/1/2011 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHI-HIDE INTERIOR LATEX DEEP BASE 108 8/22/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 61

Page 62: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HI-HIDE SEMI GLOSS PAST 105 7/8/2005 Nnot given NNHI-HIDE WALL & TRIM PAINT PASTEL BASE 4/9/1999 Nnot given NNHIGH PERFORM EPOXY MASTIC ACTIVATOR 9101 8/16/2006 Nnot given NNINDUSTRIAL DTM EPOXY MASTIC ALUMINUM 8/16/2006 Nnot given NNINTERGARD 251 GRAY, 4901B 11/11/1996 Nnot given NNINTERLAC 645 LIGHT BASE 11/11/1996 Nnot given NNINTERLAC 645 SAFETY RED 11/11/1996 Nnot given NNINTERTHERM 503 (1503 HIGH HEAT COATING) 1/7/1994 Nnot given NNLAFARGE JOINT COMPOUND READY MIX 3/1/2008 Nnot given NNLATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNLITE WEIGHT 3-LIGHTWEIGHT BODYFILLER 9/1/1994 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNOIL SATIN POLY 12/31/2008 Nnot given NNPITT-TECH GLOSS ACRYLIC ENAMEL 4/5/2009 Nnot given NNPORTER GLAZE 4000 WHITE "B" 10/13/1998 Nnot given NNPORTER GLAZE 4000 WHITE BASE, PC4015A 10/13/1998 Nnot given NNPORTER GLAZE 4300 CONVERTER, PC4346B 10/14/1998 Nnot given NNPORTER GUARD ALKYD METAL PRIMER RED 272 1/27/2003 Nnot given NNPORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNPORTER GUARD DTM ACRYL GLS ENML DB 2908 10/16/2000 Nnot given NNPORTER GUARD DTM ACRYLC GLS ENML BLK2928 10/3/2000 Nnot given NNPORTER GUARD DTM GLOSS YELLOW PAINT 5/17/2010 Nnot given NNPORTER GUARD FD GLOSS EN-DEEP BS PP2750 1/14/2010 Nnot given NNPORTER SPEEDY-PRIME, 74130 9/29/1999 Nnot given NNPORTER WOOD GUARDIAN ACRYLIC COLOR STAIN 12/7/1999 Nnot given NNPORTERGUARD FD ALKYD ENML ULT DP BS,2744 8/20/2002 Nnot given NNPORTERGUARD FD ALKYD ENML ULTRA DP BASE 8/20/2002 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNPORTERMASTIC 7900 ALUMINUM, PC7903A 10/20/1998 Nnot given NNPORTERMASTIC 7900 CONVERTER, PC7946B 10/21/1998 Nnot given NNPPG GRAY EPOXY ANTI SLIP 8/3/2004 Nnot given NNPPG YELLOW EPOXY ANTI SLIP 8/3/2004 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROTECTIVE COATING 67 X 944 6/7/1993 Nnot given NNQUIK-FIL 900 LATEX BLOCK FILLER, 9203 7/28/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 62

Page 63: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

RUST-OLEUM PRO OIL BASED ENMLS-TOPCOATS 9/21/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSHEETROCK ALL PURPOSE JOINT COMPOUND 1/1/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILKEN TOUCH INT LATEX PASTEL BASE, 1115 2/22/2001 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTRAFFIC PAINT 409 YELLOW 1/22/1993 Nnot given NNTRAFFIC PAINT 412 YELLOW 4/27/1995 Nnot given NNTURPENTINE 6/23/1995 Nnot given NNVAL ULTRA PREM INT FLT ENAM BASE 2 4/16/2007 Nnot given NNVINYL SUEDE 977-DECORATOR CEILING WHITE 3/29/1996 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNWALL-TITE 00450 SEAM ADHESIVE 8/17/1995 Nnot given NNWOOD GUARDIAN SATIN URETHANE VARNISH,CLR 12/7/1999 Nnot given NNWOOD STAIN CLEAR BASE 832 8/8/1991 Nnot given NNXD BASE 1027/WHITE 1029 5/9/1995 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *MEGASEAL NSP PAINT 4/18/2008 Nnot given NN *PORTER GLAZE 4300 GRAY, PC4301A 1/18/1999 Nnot given NN *PORTERGUARD ALKYD METAL PRIMER-WHITE 276 8/21/2002 Nnot given NN *PORTERMASTIC 7000 CONVERTER, PC7046B 5/22/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *T-1 EPOXY THINNER CLEAR, PC5100 11/6/2001 Nnot given NN *VALSPAR HI HIDE PRIMER 1/8/2007 Nnot given NN *WOOD GUARDIAN CLASSIC AMERICAN (PP302) 3/5/2004 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02OIL SATIN POLY 12/31/2008 Nnot given NNVAL ULTRA PREM INT FLT ENAM BASE 2 4/16/2007 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 63

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Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BM FRESH START ALL PURPOSE 100 ACRYL 1/19/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11PORTER GUARD FD ENAMEL-B (PP2728) 9/10/2004 0HMIS 21 *PORTER GUARD HIGH HEAT AL PP1503 (0878) 8/27/2004 1HMIS 21 *KRYLON H2O LATEX AEROSOL ARTIC WHITE 1/6/2007 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12VALSPAR 7 20055 A TRD EXT LX SG BASE 4 7/6/2004 1HMIS 12INDUSTRIAL ENAMEL PURE WHITE 1/7/2007 0HMIS 22MINWAX FAST-DRYING POLYURETHANE CLR SAT 11/7/2007 0HMIS 22SL 1 SEALANT 6/29/2006 0HMIS 22WOOD GUARDIAN CL AMERICAN PP302 8/10/2004 0HMIS 22ACRYLIC ENAMEL REDUCER (COOL TEMP.) 1/3/1996 0HMIS 32DAP ORIGINAL CONTACT CEMENT 8/11/1999 0HMIS 32KRYLON 1701 INT./EXT. BRIGHT GOLD 6/17/2003 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42MAJIC RUST KILL GRAY PRIMER 9/24/2001 NHMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *MOORE SAFETY & ZONE MARKING LATEX, M58 2/1/2000 0HMIS 12 *PORTER PHTHALO BLUE 8/8/1996 0HMIS 12 *VALSPAR 7 206272 A TRD SG YLO BASE 6/7/2005 1HMIS 12 *MINWAX WOOD FINISH (VARIOUS WOOD TONES) 3/19/2003 0HMIS 22 *MINWAX WOOD FINISH FRUITWOOD 9/29/2007 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT 2754 1/2/2008 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *THINNER EPOXY PAINT 97-725 4/26/2005 0HMIS 32 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 64

Page 65: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *PORTERGUARD FD ALKYD ENML PP2710 9/10/2004 0NFPA 21 *DTM ACRYLIC GLOSS ENAMEL 11/7/2000 0NFPA 02WOOD GUARDIAN INT POLY CLEAR (PP316) 5/21/2004 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42THURMALOX GRAY 5/16/2002 0not given 22PPG DELSTAR ACRYLIC ENAMEL DAR-1 1/3/1996 0not given 32ACRI-SHIELD FLAT - ULTRADEEP BASE PAINT 7/7/2010 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNBLANKIT INTERIOR LATEX PRIMER WHITE 1129 3/14/2003 Nnot given NNBLANKIT PRIMER 1127 DEEP BASE/1129 WHITE 12/21/1994 Nnot given NNGLYPTEX INTERIOR/EXTERIOR OIL, 4139 8/20/2002 Nnot given NNHI-HIDE INTERIOR LATEX DEEP BASE 108 8/22/2002 Nnot given NNHI-HIDE SEMI GLOSS PAST 105 7/8/2005 Nnot given NNHI-HIDE WALL & TRIM PAINT PASTEL BASE 4/9/1999 Nnot given NNPORTER GUARD ALKYD ZONE MARK PAINT YEL 10/4/2006 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNPORTERMASTIC 7900 CONVERTER, PC7946B 10/21/1998 Nnot given NNSILKEN TOUCH INT LATEX PASTEL BASE, 1115 2/22/2001 Nnot given NNTRAFFIC PAINT 409 YELLOW 1/22/1993 Nnot given NNTRAFFIC PAINT 412 YELLOW 4/27/1995 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *MEGASEAL NSP PAINT 4/18/2008 Nnot given NN *VALSPAR HI HIDE PRIMER 1/8/2007 Nnot given NN *

FIBER GLASS INSULATION 5/1/1996 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 65

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Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PORTER EXTERIOR RED 11/15/1995 0HMIS 11 *MACROPOXY 646 FAST CURE HRDNR PART B 8/2/2009 0HMIS 02NP 1 CAULK 7/5/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32PORTER PHTHALO BLUE 8/8/1996 0HMIS 12 *ZAR PAINT & VARNISH REMOVER, 275 7/1/2001 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *VALSPAR 7 206272 A TRD SG YLO BASE 6/7/2005 1HMIS 12 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *QK GAR EPOXY PART B 8/19/2008 1HMIS 22 *IND. URETHANE YELLOW TINT BASE 11/21/2006 0HMIS 23INDUST. DTM URETHANE MASTIC ACTIVATOR 1/26/2005 0HMIS 23MACROPOXY 646 FAST CURE EPOXY PART A 8/2/2009 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DAP DOW CORNING TRADE MATE II 8/30/1994 0NFPA 11QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42PPG DELSTAR ACRYLIC ENAMEL DAR-1 1/3/1996 0not given 32ACRYLIC BONDING PRIMER 515-WHITE 4/3/1995 Nnot given NNACRYLIC EXTERIOR PAINT 517, 518, 519,... 6/21/1993 Nnot given NNACRYLIC GLOSS EXT PAINT, 610,617,618,... 4/14/1993 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNDRY WALL SEALER 426-WHITE 4/3/1995 Nnot given NNHIGH PERFORM EPOXY MASTIC ACTIVATOR 9101 8/16/2006 Nnot given NNINDUSTRIAL DTM EPOXY MASTIC ALUMINUM 8/16/2006 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 66

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Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

LATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNPORTER GLAZE 4000 WHITE "B" 10/13/1998 Nnot given NNPORTER GLAZE 4000 WHITE BASE, PC4015A 10/13/1998 Nnot given NNPORTER GLAZE 4300 CONVERTER, PC4346B 10/14/1998 Nnot given NNPORTERMASTIC 7000 RED OXIDE, PC7000A 4/24/2000 Nnot given NNPORTERMASTIC 7900 ALUMINUM, PC7903A 10/20/1998 Nnot given NNPORTERMASTIC 7900 CONVERTER, PC7946B 10/21/1998 Nnot given NNTRAFFIC PAINT 412 YELLOW 4/27/1995 Nnot given NNTURPENTINE 6/23/1995 Nnot given NNVINYL SUEDE 977-DECORATOR CEILING WHITE 3/29/1996 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNXD BASE 1027/WHITE 1029 5/9/1995 Nnot given NNPORTER GLAZE 4300 GRAY, PC4301A 1/18/1999 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21SILICONE ALKYD GLOSS ENML NUTRL BASE 10/4/2004 0HMIS 22SL 1 SEALANT 6/29/2006 0HMIS 22MOORE SAFETY & ZONE MARKING LATEX, M58 2/1/2000 0HMIS 12 *QK FLAKES BLUE 12/4/2007 1HMIS 12 *VALSPAR 7 206272 A TRD SG YLO BASE 6/7/2005 1HMIS 12 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31PERMA-CRETE HI BUILD TOPCOAT WHITE 8/20/2011 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *THURMALOX GRAY 5/16/2002 0not given 22HI-HIDE SEMI GLOSS PAST 105 7/8/2005 Nnot given NNINTERGARD 251 GRAY, 4901B 11/11/1996 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 67

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Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

LAFARGE JOINT COMPOUND READY MIX 3/1/2008 Nnot given NNWOOD GUARDIAN SATIN URETHANE VARNISH,CLR 12/7/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SL 1 SEALANT 6/29/2006 0HMIS 22ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 68

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Department: Carpentry and Paint Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 69

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Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

A-17 FABRIC TWISTED WOVEN ROVING 6/12/2002 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01FUSION DS/LDS/SS/FOAM 50 6/30/1997 0HMIS 01KS-4 PLUS 7/25/2002 0HMIS 01NATURAL GRAPHITE 1/1/1997 0HMIS 01SYNTHETIC GRAPHITE 1/1/1997 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SHEET, PLATE, ROD, BAR BUILDING PRODUCTS 8/12/1996 1HMIS 11SHEET,PLATE,ROD,BAR,BLD,XTRUD&DRWN PRDTS 8/12/1996 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *FNS,RS,FRANCE NONSPALL,ROCKSPAR,MEDAL P4 11/1/2000 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *MILWARD 5% BERYLLIUM ALUMINUM 10/16/1998 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 70

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Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31MATRICAST TUFFLOOR 5/18/1998 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SLIP PLATE #3 12/10/2004 0NFPA 42BONDING CLAY 3/1/2001 0NFPA 02 *ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM , BERYLLIUM MASTER ALLOY 12/16/1986 Nnot given NNCLEAR AMMONIA 11/14/2002 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNMATRICAST SR, MATRIGUN SR 1/1/1985 Nnot given NNMT-29B 6/20/2000 Nnot given NNSHEET,PLATE,ROD,BAR,BLD,XTRUD&DRWN PRDTS 1/1/1985 Nnot given NNSIVEX S FILTERS 5/20/1997 Nnot given NNBERYLLIUM ALUMINUM MASTER ALLOY 1/12/1990 Nnot given NN *EM IRON-ALUMINUM - 80% IRON 9/25/2003 Nnot given NN *EM MANGANESE-ALUMINUM - 75% MANGANESE 6/17/1999 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REFKON 780 10/31/2002 Nnot given NN *SILICONE CARBIDE-GRAPHITE CRUCIBLE &TUBE 1/15/1998 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21JAM INK, 3701, 3702, 3703, 3704 6/25/1997 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 71

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Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21UNOCAL 142 SOLVENT 66/3 12/16/1996 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 5/10/1999 0NFPA 03

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 72

Page 73: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *HOUSEHOLD AMMONIA 4/28/1998 0HMIS 13NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CHLORINE 5/10/1999 0NFPA 03DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00BORON NITRIDE LUBRICOAT ZV 4/17/2008 0not given 02ALLOYED ALUMINUM A206.2 7/2/2001 Nnot given NNALUMINUM DROSS 2/28/1994 Nnot given NNALUMINUM DROSS 4/1/2001 Nnot given NNCLEAR AMMONIA 11/14/2002 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMETALLIC SODIUM 1/1/1985 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYDROXIDE SOLUTION 5%-50% 12/2/1998 Nnot given NNREFKON 780 10/31/2002 Nnot given NN *SAFTI VAC 6/3/2001 Nnot given NN *ZENDOX SF 1/1/2002 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 73

Page 74: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Tradename MSDS Date Health

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 74

Page 75: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

HMIS/NFPA Flam React

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10M, M-10 PAINTSTICKS 6/15/2001 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01A-17 FABRIC TWISTED WOVEN ROVING 6/12/2002 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BTU BLOCK:BRDS,PANEL,FLXBLE,LADLE LINER 6/20/2000 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 75

Page 76: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01FUSION DS/LDS/SS/FOAM 50 6/30/1997 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01KS-4 PLUS 7/25/2002 0HMIS 01NATURAL GRAPHITE 1/1/1997 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PERMA FIL (PART C) 4/22/2002 0HMIS 01PYROTEK EG135, EG175 REFRACTORY COATING 10/6/1997 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SYNTHETIC GRAPHITE 1/1/1997 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BIO-CAST ALUMINUM MOLD RELEASE LUBRICANT 3/9/2000 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SHEET, BUILDING PRODUCTS 8/12/1996 1HMIS 11SHEET, PLATE, ROD, BAR BUILDING PRODUCTS 8/12/1996 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21JAM 3750 CLEANER 2/5/1997 0HMIS 31JAM INK, 3701, 3702, 3703, 3704 6/25/1997 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *FNS,RS,FRANCE NONSPALL,ROCKSPAR,MEDAL P4 11/1/2000 0HMIS 01 *REFRACTORY CERAMIC FIBER PRODUCTS 10/1/1985 0HMIS 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 76

Page 77: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02H-W ES CASTABLE C 3/2/1993 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02PYROCOAT REDLINE 10/1/2004 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *STRONTIUM ALUMINUM 10% 2/23/1996 0HMIS 03HOUSEHOLD AMMONIA 4/28/1998 0HMIS 13LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 77

Page 78: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MOLTEN ALUMINUM 7/2/2001 2NFPA 30DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *105 SUSPENSION RFU 1/20/1999 0NFPA 013M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01SLAGONE 3/14/2009 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11H-N PAINTSTIK - RED 10/5/1999 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11SPECTRUM 8180 12/22/1994 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21UNOCAL 142 SOLVENT 66/3 12/16/1996 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *MATRICAST TUFFLOOR 5/18/1998 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42BONDING CLAY 3/1/2001 0NFPA 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 78

Page 79: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 5/10/1999 0NFPA 03DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01PYROFLUX P-10A FLUX 5/1/1999 1not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BORON NITRIDE LUBRICOAT ZV 4/17/2008 0not given 02ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALLOYED ALUMINUM A206.2 7/2/2001 Nnot given NNALUMINUM , BERYLLIUM MASTER ALLOY 12/16/1986 Nnot given NNALUMINUM BORON MASTER ALLOY 9/29/2000 Nnot given NNALUMINUM COPPER MASTER ALLOY 4/1/2002 Nnot given NNALUMINUM DROSS 2/28/1994 Nnot given NNALUMINUM DROSS 4/1/2001 Nnot given NNALUMINUM SILICON STRONTIUM MASTER ALLOY 3/6/1997 Nnot given NNALUMINUM STRONTIUM MASTER ALLOY 10/1/1997 Nnot given NNALUMINUM STRONTIUM MASTER ALLOY 9/29/2000 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNB-3 REFRACTORY BOARD 3/10/1999 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBORON NITRIDE RELEASECOAT BLUE 11/30/2010 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLEAR AMMONIA 11/14/2002 Nnot given NNCRYOLITE 6/1/1985 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFRANKOTE PMC-100 1/7/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 79

Page 80: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNKLUBERPLUS S 01-004 7/1/1995 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMAGNESIUM INGOT PRIMARY, PURE 2/25/1985 Nnot given NNMETALLIC SODIUM 1/1/1985 Nnot given NNMT-29B 6/20/2000 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROMAG S 7/5/1995 Nnot given NNPURE MAGNESIUM 7/11/2000 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYDROXIDE SOLUTION 5%-50% 12/2/1998 Nnot given NNSTRONTIUM ALUMINUM 3/9/1995 Nnot given NNSTRONTIUM ALUMINUM ALLOY-STICKS... 1/1/2000 Nnot given NNTILITE 100 8/22/1997 Nnot given NNTILITE 9549 1/7/1997 Nnot given NNULTRA BOND 2000 4/2/2001 Nnot given NNALUMINUM TITANIUM MASTER ALLOY 4/1/2002 Nnot given NN *ALUMINUM ZIRCONIUM VANADIUM MASTER ALLOY 4/1/2002 Nnot given NN *BERYLLIUM ALUMINUM MASTER ALLOY 1/12/1990 Nnot given NN *BORON NITRIDE LUBRICOAT ZV 6/19/2002 Nnot given NN *EM IRON-ALUMINUM - 80% IRON 9/25/2003 Nnot given NN *EM MANGANESE-ALUMINUM - 75% MANGANESE 6/17/1999 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REFKON 780 10/31/2002 Nnot given NN *SAFTI VAC 6/3/2001 Nnot given NN *SILICONE CARBIDE-GRAPHITE CRUCIBLE &TUBE 1/15/1998 Nnot given NN *TIBOR 4/1/2002 Nnot given NN *ZENDOX SF 1/1/2002 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 80

Page 81: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CHLORINE 5/10/1999 0NFPA 03

COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Pyrophoric

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 81

Page 82: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SHEET, PLATE, ROD, BAR BUILDING PRODUCTS 8/12/1996 1HMIS 11SHEET,PLATE,ROD,BAR,BLD,XTRUD&DRWN PRDTS 8/12/1996 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNALUMINUM , BERYLLIUM MASTER ALLOY 12/16/1986 Nnot given NNALUMINUM TITANIUM MASTER ALLOY 4/1/2002 Nnot given NN *ALUMINUM ZIRCONIUM VANADIUM MASTER ALLOY 4/1/2002 Nnot given NN *BERYLLIUM ALUMINUM MASTER ALLOY 1/12/1990 Nnot given NN *TIBOR 4/1/2002 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

KS-4 PLUS 7/25/2002 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21REFRACTORY CERAMIC FIBER PRODUCTS 6/11/2001 0HMIS 01 *SUPER 3000 MORTAR 7/1/1997 0HMIS 02PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *10% TITANIUM DIOXIDE 2/28/2000 0HMIS 03MILWARD 5% BERYLLIUM ALUMINUM 10/16/1998 0HMIS 03PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 82

Page 83: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 5/10/1999 0NFPA 03ALUMINUM TITANIUM MASTER ALLOY 4/1/2002 Nnot given NN *BERYLLIUM ALUMINUM MASTER ALLOY 1/12/1990 Nnot given NN *

CLEAR AMMONIA 11/14/2002 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *10% TITANIUM DIOXIDE 2/28/2000 0HMIS 03MOLTEN ALUMINUM 7/2/2001 2NFPA 30SILICON METAL 2/9/1999 0NFPA 01QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CHLORINE 5/10/1999 0NFPA 03ALLOYED ALUMINUM A206.2 7/2/2001 Nnot given NNALUMINUM DROSS 2/28/1994 Nnot given NNALUMINUM DROSS 4/1/2001 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMAGNESIUM INGOT PRIMARY, PURE 2/25/1985 Nnot given NNMETALLIC SODIUM 1/1/1985 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 83

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Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

PURE MAGNESIUM 7/11/2000 Nnot given NNSTRONTIUM ALUMINUM ALLOY-STICKS... 1/1/2000 Nnot given NNEM IRON-ALUMINUM - 80% IRON 9/25/2003 Nnot given NN *EM MANGANESE-ALUMINUM - 75% MANGANESE 6/17/1999 Nnot given NN *SAFTI VAC 6/3/2001 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 84

Page 85: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cast House

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 85

Page 86: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

90-RAM PC-HW 8/30/2010 0HMIS 0190-RAM TR (PRAC 5093) 4/3/2003 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ARMATEX S/QF SILICONE COATED CLOTH 9/6/2006 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01NATURAL GRAPHITE #948 9/19/1997 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01STUDIO FINISHES CHALKBOARD PAINT 3/29/2002 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11CRYLA 5/11/2004 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *SPARTAN 45 12/1/2003 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KLEAN-STRIP BLACKBOARD SLATING 1/11/1995 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *SUPER RAM CP-50 6/12/2006 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *SUPER RAM CP-45 12/9/2008 1HMIS 12 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 86

Page 87: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CA339 CERAMIC 3/3/1999 0NFPA 00CN137 8/7/1997 0NFPA 00CN731-CN738-REFRAX 10/5/2000 0NFPA 00LC1207 SAINT GOBAIN WET SICARB MORTAR 5/17/2007 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01CLAY BARRIER BRICK 1/1/2008 0NFPA 01COMBI-BLOCK 5/13/2003 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01MIX 333-E EXPANDABLE PAPER 6/17/2009 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31CER-WOOL MOLDABLE 6/14/2011 0NFPA 01 *ARMATEX TF 7/20/2009 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32WELD KLEEN HEAVY DUTY 1/1/2003 0NFPA 12 *INSBOARD 2600 10/8/2008 NNFPA NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNARMATEX S/QFF SILICONE COATED TEXTILES 3/6/2007 Nnot given NNARMATEX SF FIBERGLASS 6/1/2009 Nnot given NNCATHODE PASTE RT RAMPASTE (CD RAM PASTE) 9/7/1990 Nnot given NNCLAYBURN BEDDING MIX 6/1/2005 Nnot given NNCOAL TAR BONDED RAMMING PASTE 10/18/2002 Nnot given NNELKEM COLD RAMMING PASTE TYPE T AND TW 9/4/2006 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNI-G 26 CAULK 9/4/2008 Nnot given NNMILBRO PASTE SIC PLUS 4/10/2009 Nnot given NNMORCOCAST 50C 2/14/2008 Nnot given NNMORCOSET SIC-2 WET 2/21/2005 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 87

Page 88: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

MORCOSET SIC-4 1/2/2008 Nnot given NNTHERMOSEAL 1000 & 1000SF CEMENT 9/19/2006 Nnot given NNTHERMOSEAL M22 PUMPABLE MOLDABLE 10/23/2009 Nnot given NNAMT73S30 RAMMING PASTE 9/1/2006 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *UCAR CARBON BLOCK AND BRICK, NMH GRADE 1/1/2001 Nnot given NN *US 70 LC, US 60 LC, US 50 LC, US 60 LC G 1/1/2013 Nnot given NN *

CHEVRON HEATING FUEL NO. 1 4/21/1990 1HMIS 20BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CHALKBAORD WATER BLACK 12/1/2007 0HMIS 21CHALKBOARD PAINT - BLACK 5/1/2011 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21SLATE BLACK CHALKBOARD PAINT 1/1/2003 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KLEAN-STRIP BLACKBOARD SLATING 1/11/1995 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 88

Page 89: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41WAXIE TIME GREEN APPLE, 160891 4/16/1996 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNDEVELOPER, SKD-NF/ZP-9B 2/29/1996 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

90-RAM PC-HW 8/30/2010 0HMIS 0190-RAM TR (PRAC 5093) 4/3/2003 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 89

Page 90: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

WAXIE TIME GREEN APPLE, 160891 4/16/1996 0NFPA 41NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ARMATEX TF 7/20/2009 0NFPA 12DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00CATHODE PASTE RT RAMPASTE (CD RAM PASTE) 9/7/1990 Nnot given NNDUG OR SCRAP POTLINING 1/1/1985 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32KLEAN-STRIP TURPENTINE (GUM) 7/20/1992 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 90

Page 91: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41WAXIE TIME GREEN APPLE, 160891 4/16/1996 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41WAXIE TIME GREEN APPLE, 160891 4/16/1996 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 91

Page 92: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10CHEVRON HEATING FUEL NO. 1 4/21/1990 1HMIS 20ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 0190-RAM PC-HW 8/30/2010 0HMIS 0190-RAM TR (PRAC 5093) 4/3/2003 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ARMATEX S/QF SILICONE COATED CLOTH 9/6/2006 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01NATURAL GRAPHITE #948 9/19/1997 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01STUDIO FINISHES CHALKBOARD PAINT 3/29/2002 0HMIS 01SUPERWOOL - ALL GRADES 5/9/2008 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CHALKBAORD WATER BLACK 12/1/2007 0HMIS 21CHALKBOARD PAINT - BLACK 5/1/2011 0HMIS 21

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 92

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Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21SLATE BLACK CHALKBOARD PAINT 1/1/2003 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1CRYLA 5/11/2004 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *SPARTAN 45 12/1/2003 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KLEAN-STRIP BLACKBOARD SLATING 1/11/1995 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32KLEAN-STRIP TURPENTINE (GUM) 7/20/1992 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 93

Page 94: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *SUPER RAM CP-50 6/12/2006 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *SUPER RAM CP-45 12/9/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCA339 CERAMIC 3/3/1999 0NFPA 00CN731-CN738-REFRAX 10/5/2000 0NFPA 00LC1207 SAINT GOBAIN WET SICARB MORTAR 5/17/2007 0NFPA 00RC1114 3/11/2003 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01CLAY BARRIER BRICK 1/1/2008 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01COMBI-BLOCK 5/13/2003 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01MIX 333-E EXPANDABLE PAPER 6/17/2009 0NFPA 01RC1114 RAM MIX 4/7/2010 0NFPA 01RC1202 CERAMIC MIXTURE 6/20/2005 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01THERMIC TORCH, BURNING BAR, LANCE PIPE 5/5/2008 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01WHITEBLAST 4/19/1995 0NFPA 01COOL TOOL 6/17/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11ENERPAC HF & HOF HYDRAULIC OIL 3/26/1997 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 94

Page 95: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41WAXIE TIME GREEN APPLE, 160891 4/16/1996 0NFPA 41CER-WOOL MOLDABLE 6/14/2011 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ARMATEX TF 7/20/2009 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42WELD KLEEN HEAVY DUTY 1/1/2003 0NFPA 12 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *INSBOARD 2600 10/8/2008 NNFPA NNDURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01BAKED CATHODE BLOCKS WITH GRAPHITE 3/4/2008 1not given 01BOTTOM / SIDE-WALL BLOCKS CATHODE BLOCKS 6/4/2012 1not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALL EAGLE CEMENTED TUNGSTEN CARBIDE 10/1/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNARMATEX S/QFF SILICONE COATED TEXTILES 3/6/2007 Nnot given NNARMATEX SF FIBERGLASS 6/1/2009 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 95

Page 96: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON BLOCK RANGE 3/27/1998 Nnot given NNCARBON BLOCK RANGE 6/19/2002 Nnot given NNCATHODE PASTE RT RAMPASTE (CD RAM PASTE) 9/7/1990 Nnot given NNCLAYBURN BEDDING MIX 6/1/2005 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCOAL TAR BONDED RAMMING PASTE 10/18/2002 Nnot given NNDEVELOPER, SKD-NF/ZP-9B 2/29/1996 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDUG OR SCRAP POTLINING 1/1/1985 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNE308-16 OR 308L-16, 3/32, 1/16, 5/64" 1/1/1985 Nnot given NNELKEM COLD RAMMING PASTE TYPE T AND TW 9/4/2006 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGRAPHITIC CATHODE BLOCKS 3/1/2012 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNI-G 26 CAULK 9/4/2008 Nnot given NNINSULITE 1900 9/1/2011 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMILBRO PASTE SIC PLUS 4/10/2009 Nnot given NNMORCOCAST 50C 2/14/2008 Nnot given NNMORCOSET SIC-2 WET 2/21/2005 Nnot given NNMORCOSET SIC-4 1/2/2008 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROMASIL 1000 N 8/26/2011 Nnot given NNSBS-44 PROTECTIVE CREAM, WATER RESISTANT 7/1/1997 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILICON CARBIDE RANGE 9/22/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 96

Page 97: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NNSPENT POTLINING 12/20/1994 Nnot given NNTHERMOSEAL 1000 & 1000SF CEMENT 9/19/2006 Nnot given NNTHERMOSEAL M22 PUMPABLE MOLDABLE 10/23/2009 Nnot given NNVULCASIL 1/1/1985 Nnot given NNVULCASIL SRR05 1/1/1985 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *UCAR CARBON BLOCK AND BRICK, NMH GRADE 1/1/2001 Nnot given NN *US 70 LC, US 60 LC, US 50 LC, US 60 LC G 1/1/2013 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 97

Page 98: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNALL EAGLE CEMENTED TUNGSTEN CARBIDE 10/1/1999 Nnot given NNCOAL TAR BONDED RAMMING PASTE 10/18/2002 Nnot given NNELKEM COLD RAMMING PASTE TYPE T AND TW 9/4/2006 Nnot given NNAMT73S30 RAMMING PASTE 9/1/2006 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 98

Page 99: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21CRYLA 5/11/2004 0HMIS 01 *SUPER RAM CP-50 6/12/2006 0HMIS 12 *SUPER RAM CP-45 12/9/2008 1HMIS 12 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *COMBI-BLOCK 5/13/2003 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42WELD KLEEN HEAVY DUTY 1/1/2003 0NFPA 12 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *AMT73S30 RAMMING PASTE 9/1/2006 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DUG OR SCRAP POTLINING 1/1/1985 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMORCOCAST 50C 2/14/2008 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NNSPENT POTLINING 12/20/1994 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 99

Page 100: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Cell Lining

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 100

Page 101: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 101

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Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 102

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Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 1/1/1999 0NFPA 04SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNCHLORINE 10/11/1989 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12BRIGHT & WHITE BLEACH 7/2/1997 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CHLORINE 1/1/1999 0NFPA 04DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00CHLORINE 10/11/1989 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 103

Page 104: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 104

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Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 105

Page 106: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 106

Page 107: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01BRIGHT & WHITE BLEACH 7/2/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 1/1/1999 0NFPA 04DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 107

Page 108: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCHLORINE 10/11/1989 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BRIGHT & WHITE BLEACH 7/2/1997 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CHLORINE 1/1/1999 0NFPA 04

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 108

Page 109: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 109

Page 110: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CHLORINE 1/1/1999 0NFPA 04CHLORINE 10/11/1989 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CHLORINE 1/1/1999 0NFPA 04ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 110

Page 111: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Chlorine Storage

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 111

Page 112: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22CRAZY CLEAN 1/3/2012 0NFPA 113M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 112

Page 113: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 323M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRAZY CLEAN 1/3/2012 0NFPA 113M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 113

Page 114: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00ULTRA URINAL SCREEN 12/3/2009 0HMIS N0ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 323M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 114

Page 115: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNHAND-AID 8/20/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 115

Page 116: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13STARLICIDE TECHNICAL 2/2/2004 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 023M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 116

Page 117: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 117

Page 118: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNSWIMMING POOL PAINT - BLACK 1/25/1999 Nnot given NNSWIMMING POOL PAINT - WHITE 2/24/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 118

Page 119: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 119

Page 120: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *LIQUID OXYGEN 9/2/1991 0NFPA 03SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 120

Page 121: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSWIMMING POOL PAINT - BLACK 1/25/1999 Nnot given NNSWIMMING POOL PAINT - WHITE 2/24/1999 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 121

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Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01FORAY DRY CHEMICAL EXTINGUISHING AGENT 4/22/1994 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11LITHIUM CARBONATE 1/1/1985 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 122

Page 123: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 123

Page 124: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11TEXACO RANDO HD 100-200 HYDROLIC OIL 8/14/2009 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *LIQUID OXYGEN 9/2/1991 0NFPA 03DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 124

Page 125: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSWIMMING POOL PAINT - BLACK 1/25/1999 Nnot given NNSWIMMING POOL PAINT - WHITE 2/24/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02LIQUID OXYGEN 9/2/1991 0NFPA 03

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 125

Page 126: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 126

Page 127: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 127

Page 128: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Dock Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 128

Page 129: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01STAY-SILV 15 7/8/2010 0HMIS 01C-5A ANTISEIZE 7/23/1997 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42INHIBISOL OS 7/3/2007 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *MOLY LUBE 3/21/2002 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TUFF GUY ACTION MARKER HD BLACK 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD BLUE 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD RED 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD WHITE 8/21/2007 1HMIS 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 129

Page 130: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CHICO X6 FIBER 5/28/2008 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *YUASA DRY CHARGE BATTERY 12/1/2008 2NFPA 30 *YUASA LEAD-ACID BATTERY 11/29/2007 2NFPA 30 *YUASA VALVE REGULATED LEAD-ACID BATTERY 8/1/2008 2NFPA 30 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31MINRO-FIRE CAST 4/7/2006 1NFPA 0244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13240 INSULATOR CLEANER AND PROTECTOR 1/12/2010 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNULTRABOND 1 5/19/2008 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

UNIVIS HVI 13 4/23/2008 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LECTRA CLEAN II NON-CHLOR HVY DUTY BULK 9/29/2011 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21LECTRA CLEAN II NON-CHLOR HVY DUTY AERO 9/28/2011 0NFPA 21 *R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 12WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32240 INSULATOR CLEANER AND PROTECTOR 1/12/2010 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNWEMCO C, 55822AG 5/8/1990 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

SUVA 410A 8/29/2001 1HMIS 01SUVA HP62 (R404A) 8/29/2001 1HMIS 01MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41MASTER APPLIANCE ULTRATANE BUTANE FUEL 1/2/2008 0HMIS 41MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41DUSTER MOISTURE-FREE DUST/LINT REMOVER 2/29/2008 0HMIS 01 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22SPRAYON RED INSULATING VARNISH 11/28/2010 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 131

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SPRAYON ENVIRONMENTAL CLEANER DGRSR 3/22/2008 0HMIS 42EL 601 RED INSULATING VARNISH 11/29/2010 0HMIS 42 *MOLY LUBE 3/21/2002 0HMIS 42 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41SPOTCHECK PENETRANT SKL-SP1 8/15/2003 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *LECTRA CLEAN II NON-CHLOR HVY DUTY AERO 9/28/2011 0NFPA 21 *R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 12WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22COPPER COAT 5/7/2007 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *CARBON DIOXIDE 3/15/2002 0NFPA 03SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNCRC BATTERY CLEANER 7/20/2009 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 132

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ALKA-BRITE 3/8/2002 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NU-BRITE 12/5/2002 0HMIS 02 *PROTECH NON ACID CONDENSER COIL CLNR 1/14/2004 2HMIS 03NU-BRITE ALKALINE COIL CLEANER 1/4/2005 0HMIS 03 *NU-BRITE (4921) 6/2/2011 1HMIS 03 *YUASA DRY CHARGE BATTERY 12/1/2008 2NFPA 30 *YUASA LEAD-ACID BATTERY 11/29/2007 2NFPA 30 *YUASA VALVE REGULATED LEAD-ACID BATTERY 8/1/2008 2NFPA 30 *STAY-CLEAN PASTE FLUX 4/1/1996 0NFPA 11ULTRA COOL 2000 2/9/1996 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 12ULTRA COOL 7000 8/14/1997 0NFPA 12POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03VALVE REGULATED LEAD ACID BATTERY 6/8/2005 2NFPA 03LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13ACTI-BRITE 9/27/1996 1NFPA 04DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 6/4/1999 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 5/6/2009 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNLITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNNU-BRITE, 4291 3/31/1994 Nnot given NNPOLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTS 8/2/2007 Nnot given NNPROP GLYCOL INH FOOD CHILL 9/8/2006 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 133

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

SILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41MASTER APPLIANCE ULTRATANE BUTANE FUEL 1/2/2008 0HMIS 41MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41DUSTER MOISTURE-FREE DUST/LINT REMOVER 2/29/2008 0HMIS 01 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SPRAYON RED INSULATING VARNISH 11/28/2010 0HMIS 32ST-22 SILICONE FLUIDS 1/1/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SPRAYON ENVIRONMENTAL CLEANER DGRSR 3/22/2008 0HMIS 42AEROSOL TOUCH-UP PAINT GRAY 1/30/2004 1HMIS 42EL 601 RED INSULATING VARNISH 11/29/2010 0HMIS 42 *MOLY LUBE 3/21/2002 0HMIS 42 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 134

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

SPOTCHECK PENETRANT SKL-SP1 8/15/2003 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCTITE 7649 PRIMER N ITEM #21347 4/26/2006 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32COPPER COAT 5/7/2007 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M SCOTCHKOTE BRAND ELECTRICAL COATING 10/28/2005 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31NU-CLEAR THREAD CUTTING OIL 9/6/2011 0not given 11 *ACID ALERT TEST KIT (LARGE & SMALL) 4/13/2000 Nnot given NNACID TEST KIT 11/20/1985 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41MASTER APPLIANCE ULTRATANE BUTANE FUEL 1/2/2008 0HMIS 41MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41DUSTER MOISTURE-FREE DUST/LINT REMOVER 2/29/2008 0HMIS 01 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22SPRAYON RED INSULATING VARNISH 11/28/2010 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 135

Page 136: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SPRAYON ENVIRONMENTAL CLEANER DGRSR 3/22/2008 0HMIS 42EL 601 RED INSULATING VARNISH 11/29/2010 0HMIS 42 *MOLY LUBE 3/21/2002 0HMIS 42 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *COPPER COAT 5/7/2007 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M SCOTCHKOTE BRAND ELECTRICAL COATING 10/28/2005 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00SODIUM BICARBONATE 6/22/2006 1HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01AOS HEAT SINK COMPOUND 52022 6/1/2002 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 136

Page 137: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EVAP POW'R - C 7/31/2008 0HMIS 01EVAP-FRESH EVAPORATOR CLEANER DISINFECT 12/11/2009 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01LENOX STERLING LEAD-FREE SOLDER 10/1/2007 0HMIS 01MULTI WALLED HEAT SHRINK TUBING 1/2/2008 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01REFRIGERANT 134A (HFC-134A) 7/1/1997 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SAFE WASH 4/17/2011 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01STAY-SILV 15 7/8/2010 0HMIS 01YELLOW 77 WIRE PULLING LUBRICANT 12/21/2005 0HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01SUVA 410A 8/29/2001 1HMIS 01SUVA HP62 (R404A) 8/29/2001 1HMIS 01SUVA HP80 8/29/2001 1HMIS 01SUVA HP81 4/6/2003 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11C-5A ANTISEIZE 7/23/1997 0HMIS 11CROSSTRANS 206 ELECTRICAL INSULATING OIL 2/5/2009 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11EMKARATE RL 32CF 2/11/2003 0HMIS 11EMKARATE RL 68H 2/11/2003 0HMIS 11EZ-4 5/18/2007 0HMIS 11FLORESCENT DYE LUBRICANT OIL 5/18/2007 0HMIS 11NATIONAL POLYOLESTER LUBE PE32 10/1/2006 0HMIS 11NATIONAL REFRIGERATION OIL 150 6/1/2001 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11NRI ALKYLBENZENE 150 AKB 10/1/2006 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ZEROL 300 8/1/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 137

Page 138: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41SUVA 124 10/20/1995 1HMIS N1DUSTER MOISTURE-FREE DUST/LINT REMOVER 2/29/2008 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *LENOX ROSIN CORE LEAD FREE SOLDER 10/1/2007 0HMIS 01 *PHOS/COPPER BRAZING ALLOYS - ELECTRODES 9/13/2005 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *TRANELEC CONVENTIONAL TRANSFRMER OIL 1/13/2005 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ALKA-BRITE 3/8/2002 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02NICKEL-SAFE ICE MACHINE CLEANER 8/1/2011 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SPRAYON RED INSULATING VARNISH 11/28/2010 0HMIS 32ST-22 SILICONE FLUIDS 1/1/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 138

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Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SPRAYON ENVIRONMENTAL CLEANER DGRSR 3/22/2008 0HMIS 42AEROSOL TOUCH-UP PAINT GRAY 1/30/2004 1HMIS 42INHIBISOL OS 7/3/2007 0HMIS 02 *NU-BRITE 12/5/2002 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *EL 601 RED INSULATING VARNISH 11/29/2010 0HMIS 42 *MOLY LUBE 3/21/2002 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TUFF GUY ACTION MARKER HD BLACK 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD BLUE 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD RED 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD WHITE 8/21/2007 1HMIS 42 *PROTECH NON ACID CONDENSER COIL CLNR 1/14/2004 2HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13NU-BRITE ALKALINE COIL CLEANER 1/4/2005 0HMIS 03 *NU-BRITE (4921) 6/2/2011 1HMIS 03 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *HOT MELT ADHESIVES / MASTICS 3/1/1997 NHMIS NNNICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCHICO X6 FIBER 5/28/2008 0NFPA 00FP-301VW HEAT SHRIHK TUBING 3/30/2009 0NFPA 00ONETIME SPACKLING 3/5/1996 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 139

Page 140: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

YUASA DRY CHARGE BATTERY 12/1/2008 2NFPA 30 *YUASA LEAD-ACID BATTERY 11/29/2007 2NFPA 30 *YUASA VALVE REGULATED LEAD-ACID BATTERY 8/1/2008 2NFPA 30 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 013M SCOTCH-BRITE GEN PURP PAD 7447, 7467 11/19/2010 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ACTI-KLEAN (AK-1, AK-5, AK-55) 7/11/1991 0NFPA 01ALKYLATED BENZENE LUBRICANT, AB300 7/1/2004 0NFPA 01BLUE CORAL WASH 'N WAX 3/6/2002 0NFPA 01BRAZING ALLOYS SILVER 4/1/1990 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01GAS LEAK LOCATOR 7/1/2004 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01STAY-BRITE LEAD FREE SOLDERS 7/1/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01COOL TOOL 6/17/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11ENERPAC HF & HOF HYDRAULIC OIL 3/26/1997 0NFPA 11FLUOROCLEEN 6/10/2005 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11STAY-CLEAN PASTE FLUX 4/1/1996 0NFPA 11ULTRA COOL SMC 12/6/1995 0NFPA 11CADWELD ELECTRICAL WELDING MATERIAL 9/15/2000 1NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LECTRA CLEAN II NON-CHLOR HVY DUTY BULK 9/29/2011 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41SPOTCHECK PENETRANT SKL-SP1 8/15/2003 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *LECTRA CLEAN II NON-CHLOR HVY DUTY AERO 9/28/2011 0NFPA 21 *ULTRA COOL 2000 2/9/1996 0NFPA 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 140

Page 141: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BELZONA 9411 RELEASE AGENT 2/18/1993 1NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DOW 77 PART ASSEMBLY PASTE 10/18/1995 0NFPA 12DOW MOLYKOTE Z POWDER 1/19/1996 0NFPA 12R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12ULTRA COOL 7000 8/14/1997 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCTITE 7649 PRIMER N ITEM #21347 4/26/2006 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32COPPER COAT 5/7/2007 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M SCOTCHKOTE BRAND ELECTRICAL COATING 10/28/2005 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *CARBON DIOXIDE 3/15/2002 0NFPA 03POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13ACTI-BRITE 9/27/1996 1NFPA 04DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00SODIUM BICARBONATE 6/22/1999 1not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01TOOTSIETOY BUBBLES 2/22/1999 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31LINCOLN 7018 AC ELECTRODE 12/14/2004 0not given 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 141

Page 142: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NU-CLEAR THREAD CUTTING OIL 9/6/2011 0not given 11 *LIQUID HAND DISHWASHING DETERGENTS 4/29/2002 0not given 02NATIONAL 300 REFRIGERATION OIL 10/1/2006 0not given 1NBELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1N240 INSULATOR CLEANER AND PROTECTOR 1/12/2010 Nnot given NNACID ALERT TEST KIT (LARGE & SMALL) 4/13/2000 Nnot given NNACID TEST KIT 11/20/1985 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNAR-GLO 1, AR-GLO 2, AR-GLO 3, AR-GLO 4 5/18/2007 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBLUE RIBBON BLEACH-LIQ BLEACH-HOUSEHOLD 3/30/1989 Nnot given NNCAL-BLUE PLUS GAS LEAK DETECTOR 1/25/2007 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCOPPER/COPPER ALLOYS 1/2/2006 Nnot given NNCRC BATTERY CLEANER 7/20/2009 Nnot given NNDIELECTRIC CONNECTOR GREASE 9/15/2008 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 6/4/1999 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 5/6/2009 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFIRE-STOP SYSTEMS # 310 PANEL 1/1/1998 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHEAT-SHRINKABLE POLYMERIC PRODUCTS 10/1/1994 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM BATTERY 6/23/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 142

Page 143: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNLITHIUM-ION BATTERY CLOSED CYLINDER 12/15/2008 Nnot given NNNU-BRITE, 4291 3/31/1994 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPOLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTS 8/2/2007 Nnot given NNPROP GLYCOL INH FOOD CHILL 9/8/2006 Nnot given NNRFU 112 9/11/1991 Nnot given NNSBS-44 PROTECTIVE CREAM, WATER RESISTANT 7/1/1997 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSN 95/SB 5 LEAD FREE SOLDER 1/1/2008 Nnot given NNTEN-FOUR GLOVE DUST 1/16/2007 Nnot given NNTHERMALASTIC 83C 10/1/1994 Nnot given NNULTRABOND 1 5/19/2008 Nnot given NNUNI-PAINT PX-21 & PX-20 MARKER ALLCOLORS 2/1/2007 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02BLUE RIBBON BLEACH-LIQ BLEACH-HOUSEHOLD 3/30/1989 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11MAXI-COAT HEAVY DUTY RUSTPROOF 51213 12/11/2007 0HMIS 21DI-ELECTRIC GREASE 5/27/2003 0HMIS 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 143

Page 144: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

MAXI-COAT HEAVY DUTY RUSTPROOF 51211 5/15/2007 NHMIS 41METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON RED INSULATING VARNISH 11/28/2010 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *EL 601 RED INSULATING VARNISH 11/29/2010 0HMIS 42 *MOLY LUBE 3/21/2002 0HMIS 42 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *S-1189 STRESS RELEASE MATERIAL 8/1/1997 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCTITE 7649 PRIMER N ITEM #21347 4/26/2006 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M SCOTCHKOTE BRAND ELECTRICAL COATING 10/28/2005 0NFPA 32 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03LINCOLN 7018 AC ELECTRODE 12/14/2004 0not given 01 *ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCAL-BLUE PLUS GAS LEAK DETECTOR 1/25/2007 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 144

Page 145: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

SN 95/SB 5 LEAD FREE SOLDER 1/1/2008 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01SUVA HP81 4/6/2003 1HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11CADWELD ELECTRICAL WELDING MATERIAL 9/15/2000 1NFPA 11ULTRA COOL 2000 2/9/1996 0NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02R-410A 12/1/2008 0NFPA 12REFRIGERANT 22 (HCFC-22) 9/1/2001 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNCAL-BLUE PLUS GAS LEAK DETECTOR 1/25/2007 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date Health

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 145

Page 146: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

SUVA 410A 8/29/2001 1HMIS 01SUVA HP62 (R404A) 8/29/2001 1HMIS 01SUVA HP80 8/29/2001 1HMIS 01SUVA HP81 4/6/2003 1HMIS 01C-5A ANTISEIZE 7/23/1997 0HMIS 11EMKARATE RL 32CF 2/11/2003 0HMIS 11EMKARATE RL 68H 2/11/2003 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21AEROSOL TOUCH-UP PAINT GRAY 1/30/2004 1HMIS 42PROTECH NON ACID CONDENSER COIL CLNR 1/14/2004 2HMIS 03PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *YUASA DRY CHARGE BATTERY 12/1/2008 2NFPA 30 *YUASA LEAD-ACID BATTERY 11/29/2007 2NFPA 30 *YUASA VALVE REGULATED LEAD-ACID BATTERY 8/1/2008 2NFPA 30 *GAS LEAK LOCATOR 7/1/2004 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BATTERY TERMINAL PROTECTOR 4/27/2005 0NFPA 42 *ACTI-BRITE 9/27/1996 1NFPA 04LINCOLN 7018 AC ELECTRODE 12/14/2004 0not given 01 *BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NSN 95/SB 5 LEAD FREE SOLDER 1/1/2008 Nnot given NNTEN-FOUR GLOVE DUST 1/16/2007 Nnot given NN

HMIS/NFPA Flam React

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 146

Page 147: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *YUASA DRY CHARGE BATTERY 12/1/2008 2NFPA 30 *YUASA LEAD-ACID BATTERY 11/29/2007 2NFPA 30 *YUASA VALVE REGULATED LEAD-ACID BATTERY 8/1/2008 2NFPA 30 *BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNLITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNPOLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTS 8/2/2007 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 147

Page 148: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Electrical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 148

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Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCLOR-D-TECT Q2000/4000CHLOR/HALGN TST KT 5/17/1995 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 149

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Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CARBON DIOXIDE, GAS 6/7/1996 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 150

Page 151: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 151

Page 152: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 152

Page 153: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BUFFER SOLUTION PH 10.00 +/- 0.01 8/3/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 153

Page 154: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02FLUORESCEIN GREEN CONCENTRATE 1/26/2004 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 154

Page 155: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 155

Page 156: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

AMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLOR-D-TECT Q2000/4000CHLOR/HALGN TST KT 5/17/1995 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NNTOTAL IONIC STRENGTH ADJUSTMNT BUFFER IV 9/28/1993 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 156

Page 157: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

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Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLUORESCEIN GREEN CONCENTRATE 1/26/2004 0HMIS 02ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CLOR-D-TECT Q2000/4000CHLOR/HALGN TST KT 5/17/1995 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Environmental Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 159

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ESAB TUNGSTEN ELECTRODES 4/11/2006 0HMIS 00ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01STEEL 1/1/1996 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02DUALSHIELD T-5&CORESHIELD FLUXCORD ELECT 4/6/2000 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *PHOSPHOR BRONZE-C, 23 1/5/1998 0HMIS 03STAINLESS STEEL ELECTRODES 308-15/-16/.. 11/17/1995 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *PALCO 450 3/20/2007 0NFPA 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 160

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

SA/TRACKWEAR/-G, TRACKMANG,... 5/24/1999 0NFPA 10TRACKWEAR, TRACKALLOY HS... 11/5/1997 0NFPA 10TRACKWEAR, TRACKALLOY, TRACKMANG... 11/5/1997 0NFPA 10ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ALUNDUM, CRYSTOLON, SEEDED GEL 9/8/1999 0NFPA 01CADMIUM FREE SILVER BRAZING ALLOYS 8/1/2000 0NFPA 01DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31ALUNDUM WHEEL, ALUMINUM OXIDE GRND WHEEL 3/2/2005 0NFPA 01 *ATOM ARC LOW HYRDROGEN WELD ELEC 4130 11/21/2005 0NFPA 02DURA-WELD ELECTRODE 10/13/1999 0NFPA 02HI-PACT ELECTRODE 4/24/2009 0NFPA 02SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ALLOY RODS ATOM ARC LO HYD.,...1201B-M2 10/30/1997 0NFPA 02 *BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM ALLOYS 11/1/1995 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOBART BROTHERS 811N2 WELDING WIRE 5/8/2008 Nnot given NNMCKAY SS AC-DC/DCT COVERED ELECTRODES 1/1/1994 Nnot given NNML2001 4/27/2000 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NNSTAINLESS STEEL TYPES ALL GRADES 5/15/2009 Nnot given NNSTAINLESS STEELS 304, 347, 17-4, 410 11/1/1995 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 161

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

WROUGHT ALUMINUM PRODUCTS, 5XXX SERIES 8/14/2000 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNASBESTOS ROPE 3/11/1989 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *METAL & METAL ALLOYS OF AL,CO,NI,LE & ST 1/1/2002 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *PALCO 715 9/14/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *STUD EXTRACTOR (300A,500,500 TIG) 1/1/1985 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PB PENETRATING CATALYST 2/23/1998 0HMIS 22PB PENETRATING CATALYST 7/14/2004 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 162

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

ARGOSHIELD GAS #90, 101 10/5/1989 0HMIS 01RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42HELIUM GAS 6/1/1999 0NFPA 00CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 163

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02BELZONA 1131 SOLIDIFIER 4/11/2001 1NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNMETAL-COR 6 5/8/2008 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 164

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 165

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00ESAB TUNGSTEN ELECTRODES 4/11/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BEAR TEX 12/4/2001 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01CREST ANTI-SPATTER ULTRA 200 NOZZLE SHLD 7/1/2006 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01STEEL 1/1/1996 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11LPS TAPMATIC EDGE LUBE 1/31/2003 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 166

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *HARRIS AMERICAN LFB/FC BRAIZING ROD 7/12/2007 0HMIS 01 *SEEDED GEL CAP CODES:R/F/E/H/A9XX 6/2/2004 0HMIS 01 *SEEDED GEL CAP CODES:R/F/E9X 6/2/2004 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02DUALSHIELD T-5&CORESHIELD FLUXCORD ELECT 4/6/2000 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PB PENETRATING CATALYST 2/23/1998 0HMIS 22PB PENETRATING CATALYST 7/14/2004 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 167

Page 168: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *PHOSPHOR BRONZE-C, 23 1/5/1998 0HMIS 03STAINLESS STEEL ELECTRODES 308-15/-16/.. 11/17/1995 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNEXTRA COOL 12/12/2007 0NFPA 10SA/TRACKWEAR/-G, TRACKMANG,... 5/24/1999 0NFPA 10TRACKWEAR, TRACKALLOY HS... 11/5/1997 0NFPA 10TRACKWEAR, TRACKALLOY, TRACKMANG... 11/5/1997 0NFPA 10ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ALUNDUM, CRYSTOLON, SEEDED GEL 9/8/1999 0NFPA 01CADMIUM FREE SILVER BRAZING ALLOYS 8/1/2000 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 168

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

GRINDING AND CUTTING WHEELS, RESINOID 12/1/2009 0NFPA 01INNERSHIELD NR-232 2/15/2007 0NFPA 01INNERSHIELD NS-3M ALL SIZES 3/7/2008 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RUBBER BONDED ABRASIVE PRODUCT 2/15/2002 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SENTINEL 6/22/1998 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 4/6/2001 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11EPOXY BONDED ABRASIVE PRODUCTS 2/5/1999 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 413M ABRASIVE PRODUCT 248D 4/7/2005 0NFPA 01 *ALUNDUM WHEEL, ALUMINUM OXIDE GRND WHEEL 3/2/2005 0NFPA 01 *ALUNDUM, CRYSTOLON, SEEDED GEL 2/15/2002 0NFPA 01 *COATED ABRASIVE PRODUCTS 5/30/2002 0NFPA 01 *DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 4/3/2001 0NFPA 01 *POWERFLEX DISCS, ZIRC 1/1/2002 0NFPA 01 *POWERFLEX DISCS, ZIRC PLUS 1/1/2002 0NFPA 01 *EPOXY BONDED ABRASIVES 2/12/2002 0NFPA 11 *GLASS CLEANER 3/18/2008 0NFPA 11 *ATOM ARC LOW HYRDROGEN WELD ELEC 4130 11/21/2005 0NFPA 02DURA-WELD ELECTRODE 10/13/1999 0NFPA 02E71T-1 WELDING WIRE 1/1/2008 0NFPA 02E71T-GS WELDING WIRE 1/1/2008 0NFPA 02HI-PACT ELECTRODE 4/24/2009 0NFPA 02SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 169

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12BELZONA 1131 BASE 4/11/2001 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ALLOY RODS ATOM ARC LO HYD.,...1201B-M2 10/30/1997 0NFPA 02 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BELZONA 1131 SOLIDIFIER 4/11/2001 1NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31GLASS FIBER BACKING PAD FOR FLAP DISKS 5/9/2000 0not given 01 *RESINOID BOND CUTOFF&GRIND WHEEL METAL 4/3/2000 0not given 01 *RESINOLD BOND CUTOFF&GRIND WHEEL MASONRY 4/3/2000 0not given 01 *BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *L-56, ALL SIZES 9/15/2007 0not given 02 *ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM ALLOYS 11/1/1995 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCRYSTALON/NORZON 3/22/1996 Nnot given NNDISCS-PSA 9/3/2002 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 170

Page 171: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGALVANIZED SHEETS,HOT&COLD ROLD CARB... 4/1/1995 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOBART BROTHERS 811N2 WELDING WIRE 5/8/2008 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMCKAY SS AC-DC/DCT COVERED ELECTRODES 1/1/1994 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPSA CLOTH DISC, ZIRC DISC,... 3/1/2002 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSTAINLESS STEEL TYPES ALL GRADES 5/15/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 5XXX SERIES 8/14/2000 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNASBESTOS ROPE 3/11/1989 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *METAL & METAL ALLOYS OF AL,CO,NI,LE & ST 1/1/2002 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *PALCO 715 9/14/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *STUD EXTRACTOR (300A,500,500 TIG) 1/1/1985 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 171

Page 172: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

AIR, COMPRESSED 6/1/1999 0NFPA 00NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

ESAB TUNGSTEN ELECTRODES 4/11/2006 0HMIS 00ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11DUALSHIELD T-5&CORESHIELD FLUXCORD ELECT 4/6/2000 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ALL STATE ALL GUARD NOZZLE GEL 3/14/2003 1NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ATOM ARC LOW HYRDROGEN WELD ELEC 4130 11/21/2005 0NFPA 02QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ALLOY RODS ATOM ARC LO HYD.,...1201B-M2 10/30/1997 0NFPA 02 *L-56, ALL SIZES 9/15/2007 0not given 02 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 172

Page 173: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 5XXX SERIES 8/14/2000 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL & METAL ALLOYS OF AL,CO,NI,LE & ST 1/1/2002 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *

ESAB TUNGSTEN ELECTRODES 4/11/2006 0HMIS 00HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21SEEDED GEL CAP CODES:R/F/E/H/A9XX 6/2/2004 0HMIS 01 *SEEDED GEL CAP CODES:R/F/E9X 6/2/2004 0HMIS 01 *DUALSHIELD T-5&CORESHIELD FLUXCORD ELECT 4/6/2000 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *STAINLESS STEEL ELECTRODES 308-15/-16/.. 11/17/1995 0HMIS 03AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *PALCO 450 3/20/2007 0NFPA 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 173

Page 174: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

SA/TRACKWEAR/-G, TRACKMANG,... 5/24/1999 0NFPA 10TRACKWEAR, TRACKALLOY HS... 11/5/1997 0NFPA 10TRACKWEAR, TRACKALLOY, TRACKMANG... 11/5/1997 0NFPA 10DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RUBBER BONDED ABRASIVE PRODUCT 2/15/2002 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 4/6/2001 0NFPA 01EPOXY BONDED ABRASIVE PRODUCTS 2/5/1999 0NFPA 11COATED ABRASIVE PRODUCTS 5/30/2002 0NFPA 01 *DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 4/3/2001 0NFPA 01 *EPOXY BONDED ABRASIVES 2/12/2002 0NFPA 11 *SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02BELZONA 1131 BASE 4/11/2001 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42BELZONA 1131 SOLIDIFIER 4/11/2001 1NFPA 13BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *ADALOX OR METALITE CAP 6/24/1999 Nnot given NNMCKAY SS AC-DC/DCT COVERED ELECTRODES 1/1/1994 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 5XXX SERIES 8/14/2000 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNLOW ALLOY STEEL 5/1/2006 Nnot given NN *METAL & METAL ALLOYS OF AL,CO,NI,LE & ST 1/1/2002 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *METAL-COR 6 WELDING WIRE 5/8/2008 Nnot given NN *METAL-COR 6L WELDING WIRE 5/8/2008 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 174

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21DUALSHIELD T-5&CORESHIELD FLUXCORD ELECT 4/6/2000 0HMIS 02PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ALLOY RODS ATOM ARC LO HYD.,...1201B-M2 10/30/1997 0NFPA 02 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BELZONA 1131 SOLIDIFIER 4/11/2001 1NFPA 13METAL & METAL ALLOYS OF AL,CO,NI,LE & ST 1/1/2002 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 5XXX SERIES 8/14/2000 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 175

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Department: Fab Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 176

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01THERMAFLO 660 5/1/2005 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31CARBON PITCH LIQUID 11/15/2012 0NFPA 12PITCH LIQUID 6/1/2009 1NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 177

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCARBON PITCH TYPE A 6/14/2007 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNPOLYCHLORINATED BIPHENYLS (PCBS) 7/1/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 178

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 179

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNVINYL ACRYLIC MASTIC WEATHER BARRIER 9/30/2004 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 180

Page 181: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CALCINED PETROLEUM COKE 5/26/2006 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 181

Page 182: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11THERMINOL 66 HEAT TRANSFER FLUID 5/15/2006 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 182

Page 183: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCALCINED PETROLEUM COKE 1/6/2012 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01HOUGHTO-SAFE 620 5/14/2010 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11THERMAFLO 660 5/1/2005 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CARBON PITCH LIQUID 11/15/2012 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12PITCH LIQUID 6/1/2009 1NFPA 12

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON PITCH TYPE A 6/14/2007 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPOLYCHLORINATED BIPHENYLS (PCBS) 7/1/1999 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 184

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

THERMINOL FF 5/16/2006 Nnot given NNTHERMO 12 GOLD CALCIUM SILICATE INSUL 8/31/2005 Nnot given NNVINYL ACRYLIC MASTIC WEATHER BARRIER 9/30/2004 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CALCINED PETROLEUM COKE 2/28/2006 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *THERMAFLO 660 5/1/2005 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 185

Page 186: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *THERMAFLO 660 5/1/2005 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNVINYL ACRYLIC MASTIC WEATHER BARRIER 9/30/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 186

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNTHERMO 12 GOLD CALCIUM SILICATE INSUL 8/31/2005 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 187

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Department: Green Carbon

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 188

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *GROUND LIMESTONE-HUBERCARB,CMF,DRITHERM 9/16/1999 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01COPPER STANDARD SOLUTION, 75 MG/L AS CU 11/6/1996 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32DPD INDICATOR FOR ULTRA LO RNGE CHLORINE 6/12/1997 1NFPA 03ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNFERROUS AMMONIUM SULFATE STANDARD, 0.0 6/23/1992 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 189

Page 190: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

HI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHYDRATED LIME 3/31/2006 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11SUPERFLOC-205 9/5/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 190

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SODIUM BISULFITE LIQ 38% (10319) 6/4/1997 1HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02FERROUS CHLORIDE SOLUTION 1/14/1994 0HMIS 02SODIUM HYPOCHLORITE 9/26/2007 2HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NALCLEAN 8940 ACID CLEANER 9/10/1996 0HMIS 03CAUSTIC FREEZE PROOF 82/100/150/400/ESI 8/30/2004 1HMIS 03COPPER STANDARD SOLUTION, 75 MG/L AS CU 11/6/1996 0NFPA 01CYANIVER 3 CYANIDE REAGENT 11/6/1996 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02FERROUS CHLORIDE 10/1/2006 1NFPA 02 *CAUSTIC POTASH LIQUID 5/1/2003 1NFPA 03DPD INDICATOR FOR ULTRA LO RNGE CHLORINE 6/12/1997 1NFPA 03NALCO 1307 LOW FREEZE CAUSTIC 12/19/1994 1NFPA 03DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 191

Page 192: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

DURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNFERROUS AMMONIUM SULFATE STANDARD, 0.0 6/23/1992 Nnot given NNHYDRATED LIME 3/31/2006 Nnot given NNHYDROGEN PEROXIDE 20-60% 1/20/2005 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31BROMCRESOL GRN-METHYL RED INDICATOR SOL. 9/2/1994 0HMIS 41BROMCRESOL GRN-METHYL RED INDICATOR SOL. 7/14/2001 0HMIS 41EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 192

Page 193: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WELD-ON P-68 PRIMER FOR PVC/CPVC PIPE 4/1/1994 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NALCLEAR 7763 5/18/2007 0HMIS 10

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SODIUM BISULFITE LIQ 38% (10319) 6/4/1997 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NALCOLYTE 7181 FLOCCULANT 2/23/1999 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11SUPERFLOC-205 9/5/1997 0HMIS 11ULTIMER 7751 8/21/2001 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31BROMCRESOL GRN-METHYL RED INDICATOR SOL. 9/2/1994 0HMIS 41BROMCRESOL GRN-METHYL RED INDICATOR SOL. 7/14/2001 0HMIS 41SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 194

Page 195: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FERROUS CHLORIDE SOLUTION 1/14/1994 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02SODIUM HYPOCHLORITE 9/26/2007 2HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *NALCLEAN 8940 ACID CLEANER 9/10/1996 0HMIS 03CAUSTIC FREEZE PROOF 82/100/150/400/ESI 8/30/2004 1HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNNALCOLYTE 8105 COAGULANT 4/17/1996 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01COPPER STANDARD SOLUTION, 75 MG/L AS CU 11/6/1996 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 195

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CYANIVER 3 CYANIDE REAGENT 11/6/1996 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01ULTRA LOW RANGE CHLORINE BUFFER 11/6/1996 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32WELD-ON P-68 PRIMER FOR PVC/CPVC PIPE 4/1/1994 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42FERROUS CHLORIDE 10/1/2006 1NFPA 02 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CAUSTIC POTASH LIQUID 5/1/2003 1NFPA 03DPD INDICATOR FOR ULTRA LO RNGE CHLORINE 6/12/1997 1NFPA 03NALCO 1307 LOW FREEZE CAUSTIC 12/19/1994 1NFPA 03CUVER 2 COPPER REAGENT 1/1/1995 2NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 196

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

AMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFERROUS AMMONIUM SULFATE STANDARD, 0.0 6/23/1992 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHYDRATED LIME 3/31/2006 Nnot given NNHYDROGEN PEROXIDE 20-60% 1/20/2005 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

SODIUM HYPOCHLORITE 9/26/2007 2HMIS 02COPPER STANDARD SOLUTION, 75 MG/L AS CU 11/6/1996 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02HYDROGEN PEROXIDE 20-60% 1/20/2005 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 197

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BROMCRESOL GRN-METHYL RED INDICATOR SOL. 9/2/1994 0HMIS 41METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ULTRA LOW RANGE CHLORINE BUFFER 11/6/1996 0NFPA 01QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42CAUSTIC POTASH LIQUID 5/1/2003 1NFPA 03ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

SODIUM BISULFITE LIQ 38% (10319) 6/4/1997 1HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 198

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Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ULTRA LOW RANGE CHLORINE BUFFER 11/6/1996 0NFPA 01QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42DPD INDICATOR FOR ULTRA LO RNGE CHLORINE 6/12/1997 1NFPA 03CUVER 2 COPPER REAGENT 1/1/1995 2NFPA 13ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21FERROUS CHLORIDE SOLUTION 1/14/1994 0HMIS 02PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *CYANIVER 3 CYANIDE REAGENT 11/6/1996 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01ULTRA LOW RANGE CHLORINE BUFFER 11/6/1996 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02WELD-ON P-68 PRIMER FOR PVC/CPVC PIPE 4/1/1994 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CAUSTIC POTASH LIQUID 5/1/2003 1NFPA 03FERROUS AMMONIUM SULFATE STANDARD, 0.0 6/23/1992 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 199

Page 200: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *CAUSTIC FREEZE PROOF 82/100/150/400/ESI 8/30/2004 1HMIS 03CYANIVER 3 CYANIDE REAGENT 11/6/1996 0NFPA 01QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CAUSTIC POTASH LIQUID 5/1/2003 1NFPA 03CUVER 2 COPPER REAGENT 1/1/1995 2NFPA 13ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNHYDRATED LIME 3/31/2006 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 200

Page 201: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Ground Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 201

Page 202: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31COAL TAR BITUMEN 8/1/1996 1NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 202

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

COAL TAR PITCH 2/1/1994 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLESCO PREMIUM WEED AND FEED 3/5/1996 Nnot given NNSTAINLESS STEEL 6/25/1990 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21CROSSBOW HERBICIDE 12/23/2003 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 203

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PROPANE 6/30/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNLIQUEFIED PROPANE 9/1/1984 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01MURIATE OF POTASH 9/26/2000 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SUPER WEED KILLER CONCENTRATE 11/6/2003 0HMIS 22NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00COAL TAR PITCH 2/1/1994 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 204

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

PRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31PROPANE 6/30/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNLIQUEFIED PROPANE 9/1/1984 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 205

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

X STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PROPANE 6/30/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31LIQUEFIED PROPANE 9/1/1984 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 206

Page 207: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01MURIATE OF POTASH 9/26/2000 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11LESCO MOMENTUM PREMIUM WEED AND FEED 9/7/1999 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LESCO MOMENTUM PREMIUM SELECTV HERBICIDE 1/28/1998 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 207

Page 208: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SUPER WEED KILLER CONCENTRATE 11/6/2003 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01LESCOCIDE-PLUS GRANULAR ALGAECIDE 12/15/1993 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11LESCO ORNAMENTAL HERBICIDE, 5G 11/2/1996 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 208

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02FINALE HERBICIDE 11/3/1999 0NFPA 12LESCO PRE-M/PENDULUM PLUS FERTILIZER 3/14/2000 0NFPA 12LESCO TEAM WITH FERTILIZER 2/15/1996 0NFPA 12NUFARM CREDIT SYSTEMIC EXTRA HERBICIDE 3/24/2005 0NFPA 12NUFARM WEEDAR 64 BROADLEAF HERBICIDE 3/12/2002 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12TURF FERTILIZR + POST-EMERGNT WEED CNTRL 1/11/1996 0NFPA 12COAL TAR BITUMEN 8/1/1996 1NFPA 12CROSSBOW HERBICIDE 12/23/2003 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBLENDED COMMERCIAL FERTILIZER 6/10/1994 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCOAL TAR PITCH 2/1/1994 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 209

Page 210: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFUSILADE II TURF & ORNAMENTAL HERBICIDE 3/1/1995 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLESCO PREMIUM WEED AND FEED 3/5/1996 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNREWARD AQUATIC & NON-CROP HERBICIDE 1/1/1985 Nnot given NNROUNDUP ULTRA MAX HERBICIDE 8/24/2001 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSTAINLESS STEEL 6/25/1990 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 210

Page 211: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *CROSSBOW HERBICIDE 12/23/2003 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 211

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNFUSILADE II TURF & ORNAMENTAL HERBICIDE 3/1/1995 Nnot given NNREWARD AQUATIC & NON-CROP HERBICIDE 1/1/1985 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02TURF FERTILIZR + POST-EMERGNT WEED CNTRL 1/11/1996 0NFPA 12CROSSBOW HERBICIDE 12/23/2003 1NFPA 22PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *REWARD AQUATIC & NON-CROP HERBICIDE 1/1/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 212

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Department: Grounds Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 213

Page 214: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ADHESIVE/SEALANT 277 1/3/1995 1NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31LOCTITE 565 PST PIPE SEALANT H PTFE TS 9/27/2012 1NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 214

Page 215: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42NITROGEN 10/1/1997 0NFPA 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 215

Page 216: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *NITROGEN, COMPRESSED GAS 3/9/1996 0NFPA 03SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31NITROGEN, COMPRESSED GAS 6/30/1994 0not given 0NCALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NNNITROGEN (HIGH PRESSURE GAS) 1/1/1985 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ADHESIVE/SEALANT 277 1/3/1995 1NFPA 11NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02LOCTITE 565 PST PIPE SEALANT H PTFE TS 9/27/2012 1NFPA 12DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Tradename MSDS Date Health

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 216

Page 217: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

HMIS/NFPA Flam React

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 217

Page 218: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 218

Page 219: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12545 THREAD SEALANT PNEUMATIC/HYDRA FIT 7/9/2010 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 219

Page 220: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01VALVE LUBRICANT 650 7/17/1996 0NFPA 01CHEVRON RANDO HD HYDROLIC OIL 5/29/2008 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11THREAD-EZE BRUSH TOP, 5901 11/11/1987 0NFPA 11ADHESIVE/SEALANT 277 1/3/1995 1NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12LOCTITE 565 PST PIPE SEALANT H PTFE TS 9/27/2012 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 220

Page 221: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *NITROGEN, COMPRESSED GAS 3/9/1996 0NFPA 03DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31NITROGEN, COMPRESSED GAS 6/30/1994 0not given 0NADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ADHESIVE/SEALANT 277 1/3/1995 1NFPA 11LOCTITE 565 PST PIPE SEALANT H PTFE TS 9/27/2012 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 222

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Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12545 THREAD SEALANT PNEUMATIC/HYDRA FIT 7/9/2010 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ADHESIVE/SEALANT 277 1/3/1995 1NFPA 11LOCTITE 565 PST PIPE SEALANT H PTFE TS 9/27/2012 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 223

Page 224: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 224

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Department: Hydraulic Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 225

Page 226: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01G-65 GENERAL PURPOSE LIQ CLEANER 4/26/2002 0HMIS 01LIQUID LAUNDRY DETERGENT 5/6/2002 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02MEAN GREEN 10/6/2005 1HMIS 02SOLVENT SPOT REMOVER 861 1/18/1994 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 226

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

HI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BAFCO MINT DISINFECTANT 11/17/1994 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BIO-FLOOR DEGREASER 2/7/2001 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21ORANGE 90 DEGREASER 4/25/2013 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21SUN UP GLASS CLEANER (RTU) 1/1/2000 0HMIS N1FASTBALL CLEANER DEGREASER 9/25/2008 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22RE-MOVE NONAMMONIATE FLOOR STRIPPER 2/12/2008 1HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *NILIUM-SPICE 8/12/1994 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21NILIUM-CHERRY 3/5/1997 0NFPA 21NILIUM-SPRING MINT 3/5/1997 0NFPA 21TRAFFIC SPOTTER 5/1/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32FRANKLIN METEOR 9/22/1994 0not given 21DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNREFRESH GEL DEODORANT 10/17/2007 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNLEMON FRESH CLOROX DISINFECT WIPES 6/1/2007 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 227

Page 228: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

FIRST CLASS FURNITURE POLISH 11/24/1997 1HMIS 11HEATHER AIR FRESHENER 11/24/1997 1HMIS 11BAFCO GLASS CLEANER 5/3/2004 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31BAFCO DISINFECTANT SPRAY 1/23/1995 0HMIS 41CITRUSOLV SPRAY 8/1/1995 0HMIS 41DUST MOP SPRAY 11/8/1995 0HMIS 41WATERBASE STAINLESS 844 3/22/1994 0HMIS 41WOOD PRESERVATIVE/CLNR. 846 1/12/1995 0HMIS 41EASY-OFF FUME FREE MAX OVEN CLNR AERO 5/18/2000 0HMIS 12SOLVENT SPOT REMOVER 861 1/18/1994 0HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22RE-MOVE NONAMMONIATE FLOOR STRIPPER 2/12/2008 1HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAINLESS STEEL CLEANER 1/12/1995 0HMIS 42PRO EASY-OFF HD OVEN-GRILL CLEANER(AERO) 10/18/2005 0HMIS 23CRAZY CLEAN 1/3/2012 0NFPA 11FOAMING RUG CLEANER 18OZ. 10/21/1999 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *FILM BUSTER BASEBOARD STRIPPER 11/18/2002 0NFPA 22PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ARI SANITIZER DEODORIZER 1/1/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 228

Page 229: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

NATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01NEUTRAL FRESH (L-488) 8/5/2008 0HMIS 01SUBTLE 4 6/9/2000 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11NEUTRAL FRESH 8/20/2003 0HMIS 01 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02NAM #1 6/28/2000 0HMIS 02STAY 6/29/2000 0HMIS 02PAN-A-SOL 5/6/2002 1HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12RE-MOVE NONAMMONIATE FLOOR STRIPPER 2/12/2008 1HMIS 22PAN-A-SOL 9/30/2008 1HMIS 03BAFCO ZING TOILET BOWL CLEANER 1/19/1995 2HMIS 03PRO EASY-OFF HD OVEN-GRILL CLEANER(AERO) 10/18/2005 0HMIS 23LIFT-OUT 8/20/2003 0HMIS 03 *FOAMY Q & A 7/18/1996 0NFPA 02QUARRY TILE CLEANER 9/14/1998 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02FILM BUSTER BASEBOARD STRIPPER 11/18/2002 0NFPA 22OFFENSE FLOOR STRIPPER 11/18/2002 0NFPA 03SPEED SPRAY POWER CLEANER 8/11/1999 0NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00VESPHENE II SE 4/15/1997 0not given 13BR-62B DISINFECTANT 8/20/2003 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMILDEW STAIN REMOVER 8/20/2003 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 229

Page 230: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

REFRESH GEL DEODORANT 10/17/2007 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNULTIMATE FLOOR CLEANER 8/20/2003 Nnot given NNCLOROX REGULAR BLEACH 5/1/2005 Nnot given NN *ULTRA CLOROX GERMICIDE BLEACH 9/1/2004 Nnot given NN *

BAFCO GLASS CLEANER 5/3/2004 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31BAFCO DISINFECTANT SPRAY 1/23/1995 0HMIS 41CITRUSOLV SPRAY 8/1/1995 0HMIS 41DUST MOP SPRAY 11/8/1995 0HMIS 41WATERBASE STAINLESS 844 3/22/1994 0HMIS 41WOOD PRESERVATIVE/CLNR. 846 1/12/1995 0HMIS 41EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAINLESS STEEL CLEANER 1/12/1995 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 230

Page 231: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNMOP DRESSING 11/6/2003 Nnot given NNMOP DRESSING (L-75) 1/16/2009 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

FIRST CLASS FURNITURE POLISH 11/24/1997 1HMIS 11HEATHER AIR FRESHENER 11/24/1997 1HMIS 11BAFCO GLASS CLEANER 5/3/2004 0HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31BAFCO DISINFECTANT SPRAY 1/23/1995 0HMIS 41CITRUSOLV SPRAY 8/1/1995 0HMIS 41DUST MOP SPRAY 11/8/1995 0HMIS 41WATERBASE STAINLESS 844 3/22/1994 0HMIS 41WOOD PRESERVATIVE/CLNR. 846 1/12/1995 0HMIS 41KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAINLESS STEEL CLEANER 1/12/1995 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 231

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00CORMATIC/ULTIMA HANDI-SCRUBB SF HND CLNR 6/6/1996 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BIOREM - 2000 SURFACE CLEANER 1/12/2002 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01G-65 GENERAL PURPOSE LIQ CLEANER 4/26/2002 0HMIS 01GERM-A-CLEAN 2/1/1992 0HMIS 01GRITMASTER KRYSTAL HAND CLEANER 3/10/2009 0HMIS 01HEPACIDE QUAT 7/18/1996 0HMIS 01HI-TECH 2/23/1996 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01INTEGRITY FLOOR FINISH 1/1/1985 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01LBS GLASS CLEANER 9/24/1997 0HMIS 01LIQUID LAUNDRY DETERGENT 5/6/2002 0HMIS 01LIQUID LAUNDRY DETERGENT 4/20/2009 0HMIS 01NEUTRAL FRESH (L-488) 8/5/2008 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PRISM 130-WP 10/2/1995 0HMIS 01QUASAR 4/1/2002 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 232

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ROUGH & READY 8/18/2000 0HMIS 01SANI-SPRAY 8/21/2003 0HMIS 01SEAL FINISH 7/1/1996 0HMIS 01SUBTLE 4 6/9/2000 0HMIS 01TB QUAT 4/15/2008 0HMIS 01TB QUAT (L-537) 1/16/2009 0HMIS 01TOUGH ON GREASE 9/16/1996 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BAFCO MINT DISINFECTANT 11/17/1994 0HMIS 11CERTIFIED 2001 CARPET CLEANER 7/6/1998 0HMIS 11GO-JO ORIGINAL FORMULA H/D HAND CLEANER 1/8/1996 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FIRST CLASS FURNITURE POLISH 11/24/1997 1HMIS 11HEATHER AIR FRESHENER 11/24/1997 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BAFCO GLASS CLEANER 5/3/2004 0HMIS 21BIO-FLOOR DEGREASER 2/7/2001 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21ORANGE 90 DEGREASER 4/25/2013 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31BAFCO DISINFECTANT SPRAY 1/23/1995 0HMIS 41CITRUSOLV SPRAY 8/1/1995 0HMIS 41DUST MOP SPRAY 11/8/1995 0HMIS 41WATERBASE STAINLESS 844 3/22/1994 0HMIS 41WOOD PRESERVATIVE/CLNR. 846 1/12/1995 0HMIS 41SUN UP GLASS CLEANER (RTU) 1/1/2000 0HMIS N1SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 233

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NEUTRAL FRESH 8/20/2003 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02FASTBALL CLEANER DEGREASER 9/25/2008 0HMIS 02GREEN TIME TOTAL RESTROOM CLEANER 12/14/2006 0HMIS 02INSTITUTIONAL BAB-O WITH BLEACH 5/6/2002 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02MOP ON 10/1/1998 0HMIS 02NAM #1 6/28/2000 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02STAY 6/29/2000 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02MEAN GREEN 10/6/2005 1HMIS 02PAN-A-SOL 5/6/2002 1HMIS 02EASY-OFF FUME FREE MAX OVEN CLNR AERO 5/18/2000 0HMIS 12SOLVENT SPOT REMOVER 861 1/18/1994 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22RE-MOVE NONAMMONIATE FLOOR STRIPPER 2/12/2008 1HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAINLESS STEEL CLEANER 1/12/1995 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 234

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PAN-A-SOL 9/30/2008 1HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13LIFT-OUT 8/20/2003 0HMIS 03 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNANTIBACTERIAL SKIN CLEANSER 8/5/1999 0NFPA 00CANCEL MALODOR COUNTERACTANT 11/18/2002 0NFPA 10DISAPPEAR MALODOR COUNTERACTANT 11/18/2002 0NFPA 10RUNWAY 8/7/1996 0NFPA 10LB #5 NON-ACID BOWL CLEANER 5/6/2002 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01AMMONIA 3/19/2003 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DEFENSE, F1350 6/15/1998 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01TUFF POW'R 3/8/1995 0NFPA 01CERTIFIED 2001 5/1/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11NILIUM-SPICE 8/12/1994 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11FOAMING RUG CLEANER 18OZ. 10/21/1999 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21NILIUM-CHERRY 3/5/1997 0NFPA 21NILIUM-SPRING MINT 3/5/1997 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 235

Page 236: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *FOAMY Q & A 7/18/1996 0NFPA 02FORMULA 900 8/11/1998 0NFPA 02QUARRY TILE CLEANER 9/14/1998 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PENDULUM WDG HERBICIDE 6/2/1997 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12FILM BUSTER BASEBOARD STRIPPER 11/18/2002 0NFPA 22TRAFFIC SPOTTER 5/1/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *OFFENSE FLOOR STRIPPER 11/18/2002 0NFPA 03SPEED SPRAY POWER CLEANER 8/11/1999 0NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00POINT AFTER 6/15/1998 0not given 00WATER SOLUBLE SUPER IND CLNR/DEGRSR 1/31/2008 0not given 10FRANKLIN COMPARE 9/9/1994 0not given 01MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01FRANKLIN METEOR 9/22/1994 0not given 21SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31VESPHENE II SE 4/15/1997 0not given 13ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNARI SANITIZER DEODORIZER 1/1/1997 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBR-62B DISINFECTANT 8/20/2003 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 236

Page 237: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCP INSTIT/PROD AJAX OXYGEN BLEACH CLENSR 4/1/1994 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMICROENCAPSULATED STAINLESS STEEL CLNR 1/24/2007 Nnot given NNMICROENCAPSULATED WOOD FURNITURE CLNR 1/24/2007 Nnot given NNMILDEW STAIN REMOVER 8/20/2003 Nnot given NNMOP DRESSING 11/6/2003 Nnot given NNMOP DRESSING (L-75) 1/16/2009 Nnot given NNNETCARE BACTERIA/ENZYME 8/28/1995 Nnot given NNNILOTRON FULL RELEASE 1/29/2009 Nnot given NNNON-ACID BOWL CLEANER F4540 4/8/1996 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNREFRESH GEL DEODORANT 10/17/2007 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNULTIMATE FLOOR CLEANER 8/20/2003 Nnot given NNCLOROX REGULAR BLEACH 5/1/2005 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *LEMON FRESH CLOROX DISINFECT WIPES 6/1/2007 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *ULTRA CLOROX GERMICIDE BLEACH 9/1/2004 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 237

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Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

CLOROX REGULAR BLEACH 5/1/2005 Nnot given NN *ULTRA CLOROX GERMICIDE BLEACH 9/1/2004 Nnot given NN *

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 238

Page 239: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BIO-FLOOR DEGREASER 2/7/2001 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNNILOTRON FULL RELEASE 1/29/2009 Nnot given NNCLOROX REGULAR BLEACH 5/1/2005 Nnot given NN *ULTRA CLOROX GERMICIDE BLEACH 9/1/2004 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21NEUTRAL FRESH 8/20/2003 0HMIS 01 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13LIFT-OUT 8/20/2003 0HMIS 03 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 239

Page 240: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 240

Page 241: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Janitor Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 241

Page 242: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUINOLINE 7/3/2009 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DION FR 9300-00 1/21/1997 1HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *CLEANING SOLUTION 11/25/2009 2HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01FISHERBRAND VACUUM PUMP OIL LIGHT, 11406 10/23/1997 0NFPA 01ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 242

Page 243: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32DICHLOROMETHANE 1/9/2006 0NFPA 12 *CADMIUM MONOCARBONATE 9/12/1995 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03POTASSIUM PYROSULFATE 9/24/1997 NNFPA N3HYDRAZINE SULFATE 3/1/2000 0NFPA 13 *THORIN 12/8/1996 1not given 13CHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1N2-PROPANOL (12090) 4/28/1998 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNARSENIC REFERENCE STD SOL, SA449100 3/4/1996 Nnot given NNCADMIUM CHLORIDE ANHYDROUS (C10100) 5/28/1996 Nnot given NNCALCIUM FLUORIDE (C89250) 3/4/1996 Nnot given NNCARBORUNDUM (C192500) 3/4/1996 Nnot given NNCUPFERRON (C-551) 7/9/1989 Nnot given NNETHYL ALCOHOL, DENATURED (A407500) 5/17/1996 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHYDROCHLORIC ACID 32-38% 6/6/2006 Nnot given NNHYDROGEN PEROXIDE 30-50% (H323500) 3/4/1996 Nnot given NNMERCURY (II) CHLORIDE, S80074-M156I500 12/12/1997 Nnot given NNMETHYLENE CHLORIDE 3/1/2007 Nnot given NNMINRO-AL RAM A51-W 1/4/1993 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NNQUINOLINE, FOR SYNTHESIS 5/20/2009 Nnot given NNSAND, SEA WASHED (S1503) 12/8/1994 Nnot given NNXYLENES (X3520) 5/28/1996 Nnot given NNZIRCON SHAPE, LPC-713R, 714R 4/1/1996 Nnot given NNABRASION RESISTANT CAST IRON 10/1/2002 Nnot given NN *CLEANING SOLUTION 8/2/2000 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *NICKEL (BASKETS, CAPS, FLUX, NIBS, WIRE) 7/29/2003 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 243

Page 244: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22WATER HARDNESS INDICATOR 9/25/2001 0HMIS 22495 SUPER BONDER INSTANT ADHESIVE 3/12/2010 1HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21PLUS 140-SX-90 (BULK) 12/14/1995 0NFPA 21ACETIC ACID 10/1/2008 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ACETIC ACID, GLACIAL, 00120 12/12/1997 0NFPA 32 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNWATER HARDNESS INDICATOR 9/26/1997 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

P-10 GAS MIXTURE 8/2/1989 0HMIS 01NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 244

Page 245: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF 7/22/1994 1HMIS 42METERED AEROSOL DEODORANT-450,451,455,.. 7/11/1995 1HMIS 42ARGON 6/7/1996 0NFPA 00HELIUM 10/1/1997 0NFPA 00ARGON, LIQUEFIED ARGON 2/21/2002 0NFPA 01CARBON DIOXIDE, GAS 6/7/1996 0NFPA 01RP SUPER FILTER COAT 3/1/2006 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ARGON, COMPRESSED 6/30/1994 0not given 0NCALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SODIUM HYDROXIDE .21% THRU 1.9% 9/13/2001 0HMIS 01SODIUM HYDROXIDE 0.24 - 0.49 NORMAL 7/27/2006 0HMIS 01SODIUM HYDROXIDE SOL 4.0NORM 16.3 W/W 7/24/2006 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02BENTZ ENTEC 367 11/20/1996 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12CAUSTIC POTASH 45% 8/2/1993 1HMIS 03CLEANING SOLUTION 11/25/2009 2HMIS 03

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 245

Page 246: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03NANOCHEM OMX (ORGANOMETAL RSIN) 2/25/1998 2HMIS 23POTASSIUM PYROSULFATE 2/5/2001 0HMIS 0NSILVER NITRATE SOLUTIONS & CONCENTRATE 6/8/1998 0NFPA 00DISODIUM PHOSPHATE, DISODIUM HYDROGEN 8/10/1993 0NFPA 01POTASSIUM DISULFATE 3/1/1991 0NFPA 01POTASSIUM PERMANGANATE 11/9/1992 0NFPA 01SODIUM CARBONATE, ANHYDROUS 1/31/1997 0NFPA 01SODIUM SULFATE ANHYDROUS 8/2/2000 0NFPA 01HYDROCHLORIC ACID 6/20/2006 0NFPA 02IRON (3) CHLORIDE, HEXAHYDRATE 9/12/1995 0NFPA 02SODIUM FLUORIDE 1/4/1994 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SODIUM SULFIDE (S426212) 9/20/1997 0NFPA 12ACETIC ACID 10/1/2008 1NFPA 22TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32DICHLOROMETHANE 1/9/2006 0NFPA 12 *ACETIC ACID, GLACIAL, 00120 12/12/1997 0NFPA 32 *HYDROCHLORIC ACID, GR 10/29/2001 0NFPA 03HYDROXYLAMINE SALT 10/4/1993 0NFPA 03MERCURY 10/6/2000 0NFPA 03POTASSIUM CARBONATE 12/8/1996 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CALCIUM OXIDE 8/2/2000 1NFPA 03CAUSTIC POTASH 3/7/1995 1NFPA 03ALUMINUM CHLORIDE HEXAHYDRATE, 00905 3/8/2001 2NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03PERCHLORIC ACID, 70% 6/11/1993 3NFPA 03AMMONIUM HYDROXIDE, REAGENT ACS 1/15/2001 0NFPA 13CHLOROACETIC ACID (A176500) 3/4/1996 0NFPA 13POTASSIUM PYROSULFATE 9/24/1997 NNFPA N3ALUMINUM CHLORIDE HEXAHYDRATE, 99% 8/2/2000 0NFPA 03 *SODIUM HYDROXIDE 5/10/2010 1NFPA 03 *SODIUM HYDROXIDE 33 PERCENT W/W 12/5/2008 2NFPA 03 *HYDRAZINE SULFATE 3/1/2000 0NFPA 13 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 246

Page 247: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

AMMONIUM BIFLUORIDE (0619) 11/24/1992 2not given 00SODIUM PHOSPHATE, DIBASIC, HEPTAHYDRATE 2/24/1990 0not given 01ALUMINUM CHLORIDE, 6-HYDRATE 1/4/1994 1not given 01OXALIC ACID, 0.1N VOLUMETRIC SOLUTION 1/4/1994 1not given 02POTASSIUM PYROSULFATE 10/25/2004 0not given 02 *SODIUM, 1000 UG/ML (0.10% W/V) 8/2/2001 1not given 02 *LECOSORB 10/22/2002 1not given 03SODIUM HYDROXIDE, PURUM PELLETS 12/12/1997 1not given 03PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *CHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1N2-PROPANOL (12090) 4/28/1998 Nnot given NNALUMINUM FLUORIDE 8/1/1991 Nnot given NNARSENIC REFERENCE STD SOL, SA449100 3/4/1996 Nnot given NNASCARITE II 4/4/1995 Nnot given NNBATH CLEAR MICROBICIDE, 89044 8/2/2000 Nnot given NNBORIC ACID, 03260 (A7710) 7/12/1996 Nnot given NNCADMIUM CHLORIDE ANHYDROUS (C10100) 5/28/1996 Nnot given NNCALCIUM CHLORIDE SOLUTION 2.75% 3/3/1993 Nnot given NNCALCIUM HYPOCHLORITE SOLUTION (C100250) 3/4/1996 Nnot given NNCHLORAMINE T TRIHYDRATE 9/2/1997 Nnot given NNCITRANOX 2/1/1991 Nnot given NNCITRIC ACID ANHYDROUS (A9401) 3/4/1996 Nnot given NNCLEANING SOLUTION 1/1/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNERIOCHROME BLACK T SOLUTION (SE32500) 9/2/1997 Nnot given NNHYDROCHLORIC ACID 32-38% 6/6/2006 Nnot given NNHYDROGEN PEROXIDE 30-50% (H323500) 3/4/1996 Nnot given NNM-PHOSPHORIC ACID, GLACIAL 13216 3/4/1996 Nnot given NNO-PHOSPHORUS ACID (A246500) 3/24/1992 Nnot given NNPERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPOTASSIUM CARBONATE ANHYDROUS (BP365500) 1/9/1995 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 247

Page 248: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

POTASSIUM HYDROXIDE SOLUTION 45% 5/8/1992 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPYRIDINE 4/28/1998 Nnot given NNQUINOLINE, FOR SYNTHESIS 5/20/2009 Nnot given NNREAGENT ALCOHOL (20087) 6/19/1998 Nnot given NNSAND, SEA WASHED (S1503) 12/8/1994 Nnot given NNSILICON REFERENCE STANDRD SOL (SS465100) 3/4/1996 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NNSODIUM PHOSPHATE, MONOBASIC, MONOHYDRATE 1/4/1994 Nnot given NNSULFURIC ACID 1/26/1995 Nnot given NNSULFURIC ACID, 10-50% 8/9/2007 Nnot given NNTHIOGLYCOLIC ACID (A319100) 3/4/1996 Nnot given NNTRIS(HYDROXYMETHYL)AMINOMETHANE 12/12/1997 Nnot given NNWATER HARDNESS BUFFER WITH MAGNESIUM 12/6/2000 Nnot given NNWATER HARDNESS BUFFER WITH MG 9/26/1997 Nnot given NNZINC METAL (GRANULAR AND MOSSY) (Z15500) 3/4/1996 Nnot given NNCLEANING SOLUTION 8/2/2000 Nnot given NN *TOTAL CYANIDE 1/31/2004 Nnot given NN *

DIAZOTIZING SALTS 3/9/1995 0NFPA 01ACETONE 1/12/2000 0NFPA 31CHLORAMINE-T 10/7/1986 NNFPA NNPICRIC ACID, MINIMUM 10% WATER (A253100) 3/4/1996 Nnot given NNPYRIDINE 4/28/1998 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Explosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31ACETONE 3/17/2009 0HMIS 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 248

Page 249: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF 7/22/1994 1HMIS 42METERED AEROSOL DEODORANT-450,451,455,.. 7/11/1995 1HMIS 42QUINOLINE 7/3/2009 1HMIS 12 *DION FR 9300-00 1/21/1997 1HMIS 32 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ETHYL ALCOHOL, DENATURED, 95%, SPECIAL 10/19/1995 0NFPA N0 *PHENOLPHTHALEIN (P79100) 3/4/1996 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ACETONE 1/12/2000 0NFPA 31ETHANOL REAGENT ALCOHOL 1/30/2006 0NFPA 31ISO-PROPYL ALCOHOL 2/24/1994 0NFPA 31ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31METHANOL 2/12/1998 0NFPA 31PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31REAGENT ALCOHOL 5/7/2003 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32METHYL ISOBUTYL KETONE 4/6/1989 0NFPA 32MULTIPHARM ETHYL ALCOHOL, 200 PROOF 6/10/2009 0NFPA 32TOLUENE 12/3/1999 0NFPA 32TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 249

Page 250: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ACETONITRILE 3/23/2009 0NFPA 32 *ISOPROPYL ALCOHOL 5/15/2006 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *ACETONE 12/15/1999 0NFPA 3NSEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31PYRIDINE 5/25/2000 0not given 322-PROPANOL (12090) 4/28/1998 Nnot given NNACETONE 6/21/2002 Nnot given NNACETONE, 00140 8/11/2000 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNERIOCHROME BLACK T SOLUTION (SE32500) 9/2/1997 Nnot given NNETHYL ALCOHOL, ANHYDROUS, DENATURED 3/3/2003 Nnot given NNETHYL ALCOHOL, DENATURED (A407500) 5/17/1996 Nnot given NNPICRIC ACID, MINIMUM 10% WATER (A253100) 3/4/1996 Nnot given NNPOLISH FOR KEMRESIN TOPS 2/22/1990 Nnot given NNPYRIDINE 4/28/1998 Nnot given NNREAGENT ALCOHOL (20087) 6/19/1998 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NNXYLENES (X3520) 5/28/1996 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF 7/22/1994 1HMIS 42METERED AEROSOL DEODORANT-450,451,455,.. 7/11/1995 1HMIS 42RP SUPER FILTER COAT 3/1/2006 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 250

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

ACETONE 1/12/2000 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

BOD NUTRIENT BUFFER PILLOWS 5/3/2002 0HMIS 00BOD NUTRIENT BUFFER PILLOWS 10/9/2009 0HMIS 00EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 0035250 FELLOWES POWERSHRED SHRED LUB 11/8/2010 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01AMMONIA 12/4/1995 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BUEHLER METSPLICE, CARBIMET BUEHLER-MET 2/20/2003 0HMIS 01BUFFER REFERENCE STD, PH 10.00 BLUE 5/23/2007 0HMIS 01BUFFER SOLUTION PH 10.00 +/- 0.01 8/3/1998 0HMIS 01BUFFER, REFERENCE STANDARD, PH 4.00 RED 5/23/2007 0HMIS 01BUFFER, REFERENCE STANDARD, PH 7.00 YELL 5/23/2007 0HMIS 01CELLULOSE ACETATE 10/29/1999 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01COPPER STICKS, WIRES, STANDARD 11/10/2010 0HMIS 01COPPER TURNINGS 11/19/2007 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 251

Page 252: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SODIUM HYDROXIDE .21% THRU 1.9% 9/13/2001 0HMIS 01SODIUM HYDROXIDE 0.24 - 0.49 NORMAL 7/27/2006 0HMIS 01SODIUM HYDROXIDE SOL 4.0NORM 16.3 W/W 7/24/2006 0HMIS 01ZIRMET DISKS, METSPLICE BELTS 12/18/1998 0HMIS 01CHAMPION/LUBER-FINER LIQUID 11/12/2003 NHMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02FILTER COOLING AGENT 9/19/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02BENTZ ENTEC 367 11/20/1996 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 252

Page 253: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22WATER HARDNESS INDICATOR 9/25/2001 0HMIS 22495 SUPER BONDER INSTANT ADHESIVE 3/12/2010 1HMIS 22ACETONE 3/17/2009 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF 7/22/1994 1HMIS 42METERED AEROSOL DEODORANT-450,451,455,.. 7/11/1995 1HMIS 42COPPER OXIDE RARE EARTH BASE 11/9/2010 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUINOLINE 7/3/2009 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DION FR 9300-00 1/21/1997 1HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *CAUSTIC POTASH 45% 8/2/1993 1HMIS 03CLEANING SOLUTION 11/25/2009 2HMIS 03MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13NANOCHEM OMX (ORGANOMETAL RSIN) 2/25/1998 2HMIS 23AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *ALIZARIN-3-METHYLIMINODIACETIC ACID 12/31/2008 0HMIS 0NPOTASSIUM PYROSULFATE 2/5/2001 0HMIS 0NNICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIPOTASSIUM PHOSPHATE 12/10/1992 0NFPA 00

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 253

Page 254: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SILVER NITRATE SOLUTIONS & CONCENTRATE 6/8/1998 0NFPA 00SODIUM CHLORIDE 4/30/1993 0NFPA 00TISAB II 9/14/1995 0NFPA 00CARBOWAX 3/1/1991 0NFPA 10POTASSIUM BIPHTHALATE 3/1/1991 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ETHYL ALCOHOL, DENATURED, 95%, SPECIAL 10/19/1995 0NFPA N0 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ALUMINUM CHLORIDE 11/17/1999 0NFPA 01ARGON, LIQUEFIED ARGON 2/21/2002 0NFPA 01CALCIUM CHLORIDE, ANHYDROUS 3/1/1991 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DIAZOTIZING SALTS 3/9/1995 0NFPA 01DISODIUM PHOSPHATE, DISODIUM HYDROGEN 8/10/1993 0NFPA 01EDTA, 0.001-0.115 MOLAR AQUEOUS SOLUTION 9/10/2001 0NFPA 01FISHERBRAND VACUUM PUMP OIL LIGHT, 11406 10/23/1997 0NFPA 01LANTHANUM NITRATE HEXAHYDRATE 1/19/1994 0NFPA 01MAGNESIUM CHLORIDE HEXAHYDRATE, S80063 9/2/1997 0NFPA 01NITRIFICATION INHIBITOR FORMULA 2533 10/3/2007 0NFPA 01OPTIMUM RESULTS A REF.ELTRD FILLING SOL 6/15/2011 0NFPA 01ORION APPLICATION SOL. PH 10.01 BUFFER 7/20/1993 0NFPA 01PHENOLPHTHALEIN (P79100) 3/4/1996 0NFPA 01POTASSIUM CHLORIDE SOLUTION, 40141 6/18/2001 0NFPA 01POTASSIUM CHLORIDE, 4M, SAT SILVERCHLOR 6/12/2006 0NFPA 01POTASSIUM DISULFATE 3/1/1991 0NFPA 01POTASSIUM IODIDE AC418250030/60030, ... 12/12/1997 0NFPA 01POTASSIUM PERMANGANATE 11/9/1992 0NFPA 01POTASSIUM PHOSPHATE MONOBASIC 11/10/2004 0NFPA 01RP SUPER FILTER COAT 3/1/2006 0NFPA 01SENTINEL 6/22/1998 0NFPA 01SODIUM CARBONATE, ANHYDROUS 1/31/1997 0NFPA 01SODIUM SULFATE ANHYDROUS 8/2/2000 0NFPA 01SODIUM SULFITE ANHYDROUS, ACC21660 10/23/1997 0NFPA 01SODIUM THIOSULFATE 0.01-1.0 NORMAL VOLU 4/11/1997 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 254

Page 255: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01ZINC ACETATE 10/29/2001 0NFPA 01ORION APPLICATION SOLUTION PH 4.01 BUFFR 8/26/1992 1NFPA 01POTASSIUM IODATE 12/8/1996 1NFPA 01BARBITURIC ACID 5/8/2000 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11GLYCERIN (G31500) 5/17/1996 0NFPA 11OCTADECANOIC ACID 12/10/1992 0NFPA 11ORION APPLICATION SOLUTION TISAB 5/15/1992 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11TISAB II WITH CDTA 10/26/2000 0NFPA 11TISAB II WITH CDTA 5/13/2008 0NFPA 11ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21MAGNESIUM PERCHLORATE (ANHYDRONE) 4/1/1997 0NFPA 21PLUS 140-SX-90 (BULK) 12/14/1995 0NFPA 21ACETONE 1/12/2000 0NFPA 31ETHANOL REAGENT ALCOHOL 1/30/2006 0NFPA 31ISO-PROPYL ALCOHOL 2/24/1994 0NFPA 31ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31METHANOL 2/12/1998 0NFPA 31PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31REAGENT ALCOHOL 5/7/2003 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31TERT-BUTANOL (A401500) 3/4/1996 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41RHODANINE INDICATOR, 0.02% 3/22/1994 NNFPA N1AMMONIUM MOLYBDATE 11/17/1999 0NFPA 01 *PH 4.01 BUFFER 12/12/2007 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 1/12/2000 0NFPA 021,10-PHENANTHROLINE 9/7/1993 0NFPA 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 255

Page 256: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

AMMONIUM CHLORIDE 2/3/1997 0NFPA 02EPSOM SALTS 12/9/1992 0NFPA 02HYDROCHLORIC ACID 6/20/2006 0NFPA 02IRON (3) CHLORIDE, HEXAHYDRATE 9/12/1995 0NFPA 02MICRO LIQUID LABORATORY CLEANER 1/1/1997 0NFPA 02MOHR'S SALT; AMMONIUM IRON (II) SULFATE 8/9/1993 0NFPA 02MOLYBDIC ACID 3/1/1991 0NFPA 02SODIUM FLUORIDE 1/4/1994 0NFPA 02SODIUM FORMATE 11/21/2008 0NFPA 02TRITON X 100 3/1/1991 0NFPA 02FERROVER IRON REAGENT 1/11/2001 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02MAGNESIUM CHLORIDE, HEXAHYDRATE, GR 1/23/2007 0NFPA 12N-CHLORO-P-TOLUENE SULFONAMIDE, SODIUM 3/1/1991 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12SODIUM ACETATE TRIHYDRATE GR 1/30/2007 0NFPA 12SODIUM SULFIDE (S426212) 9/20/1997 0NFPA 12ACETIC ACID 10/1/2008 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32METHYL ISOBUTYL KETONE 4/6/1989 0NFPA 32MULTIPHARM ETHYL ALCOHOL, 200 PROOF 6/10/2009 0NFPA 32TOLUENE 12/3/1999 0NFPA 32TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42QUINOLINE 7/9/1993 0NFPA N2DICHLOROMETHANE 1/9/2006 0NFPA 12 *ACETIC ACID, GLACIAL, 00120 12/12/1997 0NFPA 32 *ACETONITRILE 3/23/2009 0NFPA 32 *ISOPROPYL ALCOHOL 5/15/2006 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CADMIUM MONOCARBONATE 9/12/1995 0NFPA 03FLUORIDE STANDARD 12/14/2006 0NFPA 03

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 256

Page 257: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HYDROCHLORIC ACID, GR 10/29/2001 0NFPA 03HYDROXYLAMINE SALT 10/4/1993 0NFPA 03MERCURY 10/6/2000 0NFPA 03POTASSIUM CARBONATE 12/8/1996 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CALCIUM OXIDE 8/2/2000 1NFPA 03CAUSTIC POTASH 3/7/1995 1NFPA 03ALUMINUM CHLORIDE HEXAHYDRATE, 00905 3/8/2001 2NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03PERCHLORIC ACID, 70% 6/11/1993 3NFPA 03AMMONIUM HYDROXIDE, REAGENT ACS 1/15/2001 0NFPA 13CHLOROACETIC ACID (A176500) 3/4/1996 0NFPA 13POTASSIUM PYROSULFATE 9/24/1997 NNFPA N3ALUMINUM CHLORIDE HEXAHYDRATE, 99% 8/2/2000 0NFPA 03 *SODIUM HYDROXIDE 5/10/2010 1NFPA 03 *SODIUM HYDROXIDE 33 PERCENT W/W 12/5/2008 2NFPA 03 *HYDRAZINE SULFATE 3/1/2000 0NFPA 13 *BARIUM DIPHENYLAMINE SULFONATE, 0.1% 3/18/1994 0NFPA 0NACETONE 12/15/1999 0NFPA 3NCHLORAMINE-T 10/7/1986 NNFPA NNBUFFER SOLUTION PHOSPHATE PH 7 YELLOW 10/15/2008 0not given 00CARBON / GRAPHITE 1/10/2005 0not given 00DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00AMMONIUM BIFLUORIDE (0619) 11/24/1992 2not given 00POTASSIUM CHLORIDE 12/8/1996 Nnot given N0IRON CHIP ACCELERATOR 4/1/1997 0not given 01MOLYBDIC ACID, 85% (A173500) 4/26/1985 0not given 01MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01QUARTZ REFRACTORY SHAPE LPC-510R 5/1/1995 0not given 01QUARTZ WOOL FILTERING FIBER 11/9/2010 0not given 01SODIUM PHOSPHATE, DIBASIC, HEPTAHYDRATE 2/24/1990 0not given 01ALUMINUM CHLORIDE 10/29/2001 1not given 01ALUMINUM CHLORIDE, 6-HYDRATE 1/4/1994 1not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31GLASS WOOL FILTERING FIBER 11/9/2010 0not given 02RUST INHIBITING ADDITIVE 7/13/2002 0not given 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 257

Page 258: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

OXALIC ACID, 0.1N VOLUMETRIC SOLUTION 1/4/1994 1not given 02BARBITURIC ACID 6/25/1993 0not given 12PYRIDINE 5/25/2000 0not given 32POTASSIUM PYROSULFATE 10/25/2004 0not given 02 *SODIUM, 1000 UG/ML (0.10% W/V) 8/2/2001 1not given 02 *LECOSORB 10/22/2002 1not given 03SODIUM HYDROXIDE, PURUM PELLETS 12/12/1997 1not given 03PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *ETHYLENEDIAMINE TETRAACETIC ACID S311100 5/12/1998 0not given 0NMAGNESIUM OXIDE S80066, M300500, ... 12/12/1997 0not given 0NCHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1NSODIUM SULFITE 10% W/V 4/26/2001 0not given NN1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 7/12/1996 Nnot given NN2-PROPANOL (12090) 4/28/1998 Nnot given NNACETONE 6/21/2002 Nnot given NNACETONE, 00140 8/11/2000 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALIZARIN FLUORINE BLUE, DIHYDRATE 5/24/1996 Nnot given NNALUMINUM FLUORIDE 8/1/1991 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNAMMONIUM ACETATE 12/13/1993 Nnot given NNAMMONIUM CHLORIDE (AC9470862,...) 2/16/1998 Nnot given NNAMMONIUM PHOSPHATE MONOBASIC (A685500) 3/4/1996 Nnot given NNARSENIC REFERENCE STD SOL, SA449100 3/4/1996 Nnot given NNASCARITE II 4/4/1995 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBARBITURIC ACID 01308100-01309100 12/12/1997 Nnot given NNBARIUM CHLORIDE DIHYDRATE S71245... 4/17/1998 Nnot given NNBATH CLEAR MICROBICIDE, 89044 8/2/2000 Nnot given NNBOD NUTRIENT BUFFER PILLOWS, 14862 10/26/1991 Nnot given NNBORIC ACID 3/23/1992 Nnot given NNBORIC ACID, 03260 (A7710) 7/12/1996 Nnot given NN

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 258

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BORON REF STD SOLUTION, SB-155 6/28/1991 Nnot given NNBRIJ 35, 30% SOLUTION 3/17/1997 Nnot given NNBROMOCRESOL GREEN SOLUTION 0.04%, SI-14 5/15/1991 Nnot given NNBROMOPHENOL BLUE S71389/90, B3925, ... 12/12/1997 Nnot given NNBUFFER SOLUTION PH 7.0 (COLOR-CODED YLW) 1/4/1999 Nnot given NNCADMIUM CHLORIDE ANHYDROUS (C10100) 5/28/1996 Nnot given NNCALCIUM CHLORIDE SOLUTION 2.75% 3/3/1993 Nnot given NNCALCIUM FLUORIDE (C89250) 3/4/1996 Nnot given NNCALCIUM HYPOCHLORITE SOLUTION (C100250) 3/4/1996 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCALIBRATION SAMPLE (C,H,O,N,S IN STEEL) 7/13/2002 Nnot given NNCARBORUNDUM (C192500) 3/4/1996 Nnot given NNCELLULOSE BINDER 10/13/2004 Nnot given NNCHLORAMINE T TRIHYDRATE 9/2/1997 Nnot given NNCHLORAMINE-T (1097997) 12/1/1994 Nnot given NNCITRANOX 2/1/1991 Nnot given NNCITRIC ACID ANHYDROUS (A9401) 3/4/1996 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLEANING SOLUTION 1/1/2008 Nnot given NNCUPFERRON (C-551) 7/9/1989 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNERIOCHROME BLACK T SOLUTION (SE32500) 9/2/1997 Nnot given NNETHYL ALCOHOL, ANHYDROUS, DENATURED 3/3/2003 Nnot given NNETHYL ALCOHOL, DENATURED (A407500) 5/17/1996 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOSTALEN GUR STANDARD GRADES (POWDER) 1/14/1991 Nnot given NNHYDROCHLORIC ACID 32-38% 6/6/2006 Nnot given NNHYDROGEN PEROXIDE 30-50% (H323500) 3/4/1996 Nnot given NNINDIGO CARMINE (I16625) 2/28/1992 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 259

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LITHIUM TETRABORATE, 12592 4/6/1994 Nnot given NNM-PHOSPHORIC ACID, GLACIAL 13216 3/4/1996 Nnot given NNM/C CANOLA SALAD OIL 4/28/1997 Nnot given NNMERCURY (I) CHLORIDE (M159100) 3/4/1996 Nnot given NNMERCURY (II) CHLORIDE, S80074-M156I500 12/12/1997 Nnot given NNMETHYLENE CHLORIDE 3/1/2007 Nnot given NNMINRO-AL RAM A51-W 1/4/1993 Nnot given NNNON-ACID BOWL CLEANER F4540 4/8/1996 Nnot given NNO-PHOSPHORUS ACID (A246500) 3/24/1992 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPHENOL RED FREE ACID (P7410) 4/4/1995 Nnot given NNPICRIC ACID, MINIMUM 10% WATER (A253100) 3/4/1996 Nnot given NNPOLISH FOR KEMRESIN TOPS 2/22/1990 Nnot given NNPOTASSIUM BIPHTHALATE, 2958, 4889 1/4/1994 Nnot given NNPOTASSIUM CARBONATE ANHYDROUS (BP365500) 1/9/1995 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NNPOTASSIUM HYDROGEN PHTHALATE (19425) 9/2/1997 Nnot given NNPOTASSIUM HYDROXIDE SOLUTION 45% 5/8/1992 Nnot given NNPOTASSIUM NITRATE (BP368500) 7/12/1996 Nnot given NNPOTASSIUM PHOSPHATE, MONOBASIC 12/12/1997 Nnot given NNPOTASSIUM PHOSPHATE, MONOBASIC/ACS GRADE 4/6/1984 Nnot given NNPRESTOLINE INHIBITED SULFAMIC ACID 7/16/1986 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPYRIDINE 4/28/1998 Nnot given NNQUINOLINE, FOR SYNTHESIS 5/20/2009 Nnot given NNREAGENT ALCOHOL (20087) 6/19/1998 Nnot given NNRINSE SOLUTION 12/1/2006 Nnot given NNSAND, SEA WASHED (S1503) 12/8/1994 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILICON REFERENCE STANDRD SOL (SS465100) 3/4/1996 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM FORMATE (21250) 9/2/1997 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 260

Page 261: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NNSODIUM L-(+)-TARTRATE DIHYDRATE BP352500 12/12/1997 Nnot given NNSODIUM PERIODATE FOR MANGANESE 984-99 7/17/1986 Nnot given NNSODIUM PHOSPHATE DIBASIC HEPTAHYDRATE 3/4/1996 Nnot given NNSODIUM PHOSPHATE MONOBASIC MONOHYDRATE 3/4/1996 Nnot given NNSODIUM PHOSPHATE, MONOBASIC, MONOHYDRATE 1/4/1994 Nnot given NNSODIUM STANDARD SOLUTIONS 9/13/2001 Nnot given NNSODIUM THIOSULFATE SOLUTIONS 0.025N 9/29/1988 Nnot given NNSTARCH POWDER 4/1/1997 Nnot given NNSTEARIC ACID (22527) 4/7/1994 Nnot given NNSULFURIC ACID 1/26/1995 Nnot given NNSULFURIC ACID, 10-50% 8/9/2007 Nnot given NNTHIOGLYCOLIC ACID (A319100) 3/4/1996 Nnot given NNTHYMOL BLUE, T4165 6/8/1995 Nnot given NNTIN,CAPSULES,FLUX,CUPS,PLUGS,ACCELERATOR 5/19/2003 Nnot given NNTOTAL IONIC STRENGTH ADJUSTMNT BUFFER IV 9/28/1993 Nnot given NNTRANS-TETRACETIC ACID 1/5/1993 Nnot given NNTRIS(HYDROXYMETHYL)AMINOMETHANE 12/12/1997 Nnot given NNWATER HARDNESS BUFFER WITH MAGNESIUM 12/6/2000 Nnot given NNWATER HARDNESS BUFFER WITH MG 9/26/1997 Nnot given NNWATER HARDNESS INDICATOR 9/26/1997 Nnot given NNXYLENES (X3520) 5/28/1996 Nnot given NNZINC METAL (GRANULAR AND MOSSY) (Z15500) 3/4/1996 Nnot given NNZIRCONIUM OXIDE BELTS 1/3/2005 Nnot given NNABRASION RESISTANT CAST IRON 10/1/2002 Nnot given NN *CLEANING SOLUTION 8/2/2000 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *N,N-DIETHYL-P-PHENYLENEDIAMINE OXALATE 1/1/1985 Nnot given NN *NICKEL (BASKETS, CAPS, FLUX, NIBS, WIRE) 7/29/2003 Nnot given NN *OXYGEN IN TUNGSTEN TRIOXIDE 12/4/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *TOTAL CYANIDE 1/31/2004 Nnot given NN *

BENTZ ENTEC 367 11/20/1996 1HMIS 12

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 261

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

SILVER NITRATE SOLUTIONS & CONCENTRATE 6/8/1998 0NFPA 00DIAZOTIZING SALTS 3/9/1995 0NFPA 01LANTHANUM NITRATE HEXAHYDRATE 1/19/1994 0NFPA 01POTASSIUM PERMANGANATE 11/9/1992 0NFPA 01POTASSIUM IODATE 12/8/1996 1NFPA 01MAGNESIUM PERCHLORATE (ANHYDRONE) 4/1/1997 0NFPA 21NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CALCIUM OXIDE 8/2/2000 1NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03PERCHLORIC ACID, 70% 6/11/1993 3NFPA 03POTASSIUM PYROSULFATE 9/24/1997 NNFPA N3POTASSIUM PYROSULFATE 10/25/2004 0not given 02 *SODIUM, 1000 UG/ML (0.10% W/V) 8/2/2001 1not given 02 *PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *CHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1NCALCIUM HYPOCHLORITE SOLUTION (C100250) 3/4/1996 Nnot given NNHYDROGEN PEROXIDE 30-50% (H323500) 3/4/1996 Nnot given NNPERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NNPOTASSIUM NITRATE (BP368500) 7/12/1996 Nnot given NNSODIUM PERIODATE FOR MANGANESE 984-99 7/17/1986 Nnot given NNSULFURIC ACID, 10-50% 8/9/2007 Nnot given NN

COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01ZINC METAL (GRANULAR AND MOSSY) (Z15500) 3/4/1996 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Pyrophoric

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 262

Page 263: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *QUINOLINE 7/3/2009 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *CLEANING SOLUTION 11/25/2009 2HMIS 03PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *SILVER NITRATE SOLUTIONS & CONCENTRATE 6/8/1998 0NFPA 00SODIUM CHLORIDE 4/30/1993 0NFPA 00CARBOWAX 3/1/1991 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ETHYL ALCOHOL, DENATURED, 95%, SPECIAL 10/19/1995 0NFPA N0 *DIAZOTIZING SALTS 3/9/1995 0NFPA 01POTASSIUM IODIDE AC418250030/60030, ... 12/12/1997 0NFPA 01SODIUM CARBONATE, ANHYDROUS 1/31/1997 0NFPA 01ACID FLUX CORED SOLDER 10/15/1996 0NFPA 21ETHANOL REAGENT ALCOHOL 1/30/2006 0NFPA 31ISO-PROPYL ALCOHOL 2/24/1994 0NFPA 31ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31METHANOL 2/12/1998 0NFPA 31PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31REAGENT ALCOHOL 5/7/2003 0NFPA 31TERT-BUTANOL (A401500) 3/4/1996 0NFPA 31IRON (3) CHLORIDE, HEXAHYDRATE 9/12/1995 0NFPA 02TRITON X 100 3/1/1991 0NFPA 02QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 263

Page 264: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

MULTIPHARM ETHYL ALCOHOL, 200 PROOF 6/10/2009 0NFPA 32TOLUENE 12/3/1999 0NFPA 32TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42DICHLOROMETHANE 1/9/2006 0NFPA 12 *ACETONITRILE 3/23/2009 0NFPA 32 *CADMIUM MONOCARBONATE 9/12/1995 0NFPA 03FLUORIDE STANDARD 12/14/2006 0NFPA 03MERCURY 10/6/2000 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CAUSTIC POTASH 3/7/1995 1NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03CHLORAMINE-T 10/7/1986 NNFPA NNCHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1NACETONE, 00140 8/11/2000 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNBATH CLEAR MICROBICIDE, 89044 8/2/2000 Nnot given NNBORIC ACID 3/23/1992 Nnot given NNBORON REF STD SOLUTION, SB-155 6/28/1991 Nnot given NNCADMIUM CHLORIDE ANHYDROUS (C10100) 5/28/1996 Nnot given NNDEXTROSE ANHYDROUS (BP3501) 3/4/1996 Nnot given NNETHYL ALCOHOL, ANHYDROUS, DENATURED 3/3/2003 Nnot given NNETHYL ALCOHOL, DENATURED (A407500) 5/17/1996 Nnot given NNHYDROCHLORIC ACID 32-38% 6/6/2006 Nnot given NNLITHIUM TETRABORATE, 12592 4/6/1994 Nnot given NNMERCURY (I) CHLORIDE (M159100) 3/4/1996 Nnot given NNMERCURY (II) CHLORIDE, S80074-M156I500 12/12/1997 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNQUINOLINE, FOR SYNTHESIS 5/20/2009 Nnot given NNREAGENT ALCOHOL (20087) 6/19/1998 Nnot given NNWATER HARDNESS INDICATOR 9/26/1997 Nnot given NNXYLENES (X3520) 5/28/1996 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 264

Page 265: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12495 SUPER BONDER INSTANT ADHESIVE 3/12/2010 1HMIS 22GREAT STUFF 7/22/1994 1HMIS 42ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *FISHERBRAND VACUUM PUMP OIL LIGHT, 11406 10/23/1997 0NFPA 01POTASSIUM DISULFATE 3/1/1991 0NFPA 01BARBITURIC ACID 5/8/2000 0NFPA 11ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31FERROVER IRON REAGENT 1/11/2001 1NFPA 02N-CHLORO-P-TOLUENE SULFONAMIDE, SODIUM 3/1/1991 0NFPA 12ACETIC ACID 10/1/2008 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ACETIC ACID, GLACIAL, 00120 12/12/1997 0NFPA 32 *CADMIUM MONOCARBONATE 9/12/1995 0NFPA 03MERCURY 10/6/2000 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CHLORAMINE-T 10/7/1986 NNFPA NNBARBITURIC ACID 6/25/1993 0not given 12PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *CHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1N2-PROPANOL (12090) 4/28/1998 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNBORIC ACID 3/23/1992 Nnot given NNBORON REF STD SOLUTION, SB-155 6/28/1991 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 265

Page 266: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

CHLORAMINE T TRIHYDRATE 9/2/1997 Nnot given NNCHLORAMINE-T (1097997) 12/1/1994 Nnot given NNHYDROCHLORIC ACID 32-38% 6/6/2006 Nnot given NNPERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPOTASSIUM CHROMATE (P220100) 3/15/1995 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NNSTARCH (1B464) 12/28/1993 Nnot given NNCLEANING SOLUTION 8/2/2000 Nnot given NN *N,N-DIETHYL-P-PHENYLENEDIAMINE OXALATE 1/1/1985 Nnot given NN *NICKEL (BASKETS, CAPS, FLUX, NIBS, WIRE) 7/29/2003 Nnot given NN *

CHAMPION/LUBER-FINER LIQUID 11/12/2003 NHMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21ACETONE 3/17/2009 0HMIS 32GREAT STUFF 7/22/1994 1HMIS 42QUINOLINE 7/3/2009 1HMIS 12 *DION FR 9300-00 1/21/1997 1HMIS 32 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13SILVER NITRATE SOLUTIONS & CONCENTRATE 6/8/1998 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ETHYL ALCOHOL, DENATURED, 95%, SPECIAL 10/19/1995 0NFPA N0 *DIAZOTIZING SALTS 3/9/1995 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01ETHANOL REAGENT ALCOHOL 1/30/2006 0NFPA 31ISOPROPYL ALCOHOL, 100% - 70% 8/2/1995 0NFPA 31METHANOL 2/12/1998 0NFPA 31REAGENT ALCOHOL 5/7/2003 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RHODANINE INDICATOR, 0.02% 3/22/1994 NNFPA N11,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE 1/12/2000 0NFPA 02EPSOM SALTS 12/9/1992 0NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

MOLYBDIC ACID 3/1/1991 0NFPA 02SODIUM FLUORIDE 1/4/1994 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02N-CHLORO-P-TOLUENE SULFONAMIDE, SODIUM 3/1/1991 0NFPA 12SODIUM SULFIDE (S426212) 9/20/1997 0NFPA 12ACETIC ACID 10/1/2008 1NFPA 22MULTIPHARM ETHYL ALCOHOL, 200 PROOF 6/10/2009 0NFPA 32TOLUENE (S80229-T3304) 4/28/1998 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42QUINOLINE 7/9/1993 0NFPA N2ACETONITRILE 3/23/2009 0NFPA 32 *ISOPROPYL ALCOHOL 5/15/2006 0NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *FLUORIDE STANDARD 12/14/2006 0NFPA 03HYDROCHLORIC ACID, GR 10/29/2001 0NFPA 03MERCURY 10/6/2000 0NFPA 03POTASSIUM DICHROMATE (AC196590500,...) 7/15/1998 0NFPA 03CAUSTIC POTASH 3/7/1995 1NFPA 03ALUMINUM CHLORIDE HEXAHYDRATE, 00905 3/8/2001 2NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03SODIUM HYDROXIDE 5/10/2010 1NFPA 03 *SODIUM HYDROXIDE 33 PERCENT W/W 12/5/2008 2NFPA 03 *HYDRAZINE SULFATE 3/1/2000 0NFPA 13 *AMMONIUM BIFLUORIDE (0619) 11/24/1992 2not given 00OXALIC ACID, 0.1N VOLUMETRIC SOLUTION 1/4/1994 1not given 02PYRIDINE 5/25/2000 0not given 32SODIUM, 1000 UG/ML (0.10% W/V) 8/2/2001 1not given 02 *PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *CHROMIUM (VI) TRIOXIDE, ACC 04940 6/4/1998 1not given 1NACETONE 6/21/2002 Nnot given NNBATH CLEAR MICROBICIDE, 89044 8/2/2000 Nnot given NNBORIC ACID 3/23/1992 Nnot given NNCUPFERRON (C-551) 7/9/1989 Nnot given NNERIOCHROME BLACK T SOLUTION (SE32500) 9/2/1997 Nnot given NNETHYL ALCOHOL, ANHYDROUS, DENATURED 3/3/2003 Nnot given NNETHYL ALCOHOL, DENATURED (A407500) 5/17/1996 Nnot given NN

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Hazard Communication Training

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

MERCURY (I) CHLORIDE (M159100) 3/4/1996 Nnot given NNMERCURY (II) CHLORIDE, S80074-M156I500 12/12/1997 Nnot given NNPICRIC ACID, MINIMUM 10% WATER (A253100) 3/4/1996 Nnot given NNPOTASSIUM DICHROMATE SOL. 0.1N (SP1701) 3/13/1992 Nnot given NNPOTASSIUM HYDROXIDE SOLUTION 45% 5/8/1992 Nnot given NNPOTASSIUM NITRATE (BP368500) 7/12/1996 Nnot given NNQUINOLINE, FOR SYNTHESIS 5/20/2009 Nnot given NNREAGENT ALCOHOL (20087) 6/19/1998 Nnot given NNSILICON REFERENCE STANDRD SOL (SS465100) 3/4/1996 Nnot given NNSTEARIC ACID (22527) 4/7/1994 Nnot given NNSULFURIC ACID 1/26/1995 Nnot given NNTHIOGLYCOLIC ACID (A319100) 3/4/1996 Nnot given NNZIRCONIUM OXIDE BELTS 1/3/2005 Nnot given NNTOTAL CYANIDE 1/31/2004 Nnot given NN *

PERCHLORIC ACID, 60-70% SOLUTIONS 8/24/2005 3not given 03 *PERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPICRIC ACID, MINIMUM 10% WATER (A253100) 3/4/1996 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

COPPER METAL ACCELERATOR 1/11/1999 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BENTZ ENTEC 367 11/20/1996 1HMIS 12495 SUPER BONDER INSTANT ADHESIVE 3/12/2010 1HMIS 22GREAT STUFF 7/22/1994 1HMIS 42ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUINOLINE 7/3/2009 1HMIS 12 *CAUSTIC POTASH 45% 8/2/1993 1HMIS 03NANOCHEM OMX (ORGANOMETAL RSIN) 2/25/1998 2HMIS 23ALUMINUM CHLORIDE 11/17/1999 0NFPA 01MAGNESIUM CHLORIDE HEXAHYDRATE, S80063 9/2/1997 0NFPA 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

FERROVER IRON REAGENT 1/11/2001 1NFPA 02N-CHLORO-P-TOLUENE SULFONAMIDE, SODIUM 3/1/1991 0NFPA 12SODIUM SULFIDE (S426212) 9/20/1997 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32POTASSIUM CARBONATE 12/8/1996 0NFPA 03CAUSTIC POTASH 3/7/1995 1NFPA 03ALUMINUM CHLORIDE HEXAHYDRATE, 00905 3/8/2001 2NFPA 03SULFURIC ACID 4/19/1994 2NFPA 03POTASSIUM PYROSULFATE 9/24/1997 NNFPA N3ALUMINUM CHLORIDE HEXAHYDRATE, 99% 8/2/2000 0NFPA 03 *CHLORAMINE-T 10/7/1986 NNFPA NNALUMINUM CHLORIDE 10/29/2001 1not given 01ALUMINUM CHLORIDE, 6-HYDRATE 1/4/1994 1not given 01POTASSIUM PYROSULFATE 10/25/2004 0not given 02 *LECOSORB 10/22/2002 1not given 03ASCARITE II 4/4/1995 Nnot given NNBORON REF STD SOLUTION, SB-155 6/28/1991 Nnot given NNCALCIUM HYPOCHLORITE SOLUTION (C100250) 3/4/1996 Nnot given NNCHLORAMINE T TRIHYDRATE 9/2/1997 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNM-PHOSPHORIC ACID, GLACIAL 13216 3/4/1996 Nnot given NNMETHYLENE CHLORIDE 3/1/2007 Nnot given NNO-PHOSPHORUS ACID (A246500) 3/24/1992 Nnot given NNPERCHLORIC ACID, 60% S76875ACS-2, -4,... 1/5/1998 Nnot given NNPOTASSIUM HYDROXIDE SOLUTION 45% 5/8/1992 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSULFURIC ACID, 10-50% 8/9/2007 Nnot given NNTHIOGLYCOLIC ACID (A319100) 3/4/1996 Nnot given NNZINC METAL (GRANULAR AND MOSSY) (Z15500) 3/4/1996 Nnot given NNABRASION RESISTANT CAST IRON 10/1/2002 Nnot given NN *CLEANING SOLUTION 8/2/2000 Nnot given NN *NICKEL (BASKETS, CAPS, FLUX, NIBS, WIRE) 7/29/2003 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 269

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Department: Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *RAPID SORB 1/1/1996 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01CHEVRON SOLUBLE OIL B, CPS233703 10/28/1994 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32CHEVRON OPEN GEAR LUBRICANT SP 5/7/1996 0NFPA 42ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 271

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *CHEVRON RUST PREVENTATIVE 1/12/1995 0NFPA 21HIGH CORE 5/21/1993 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNLP-500 LUBRICANT 7/30/1993 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

KILFROST AIRTOOL LUBRICANT 8/12/2009 0HMIS 00NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 272

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CHEVRON OPEN GEAR LUBRICANT SP 5/7/1996 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12VAL PLEX EP GREASE 2/10/1995 0NFPA 11HIGH CORE 5/21/1993 0NFPA 21NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 273

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32CHEVRON OPEN GEAR LUBRICANT SP 5/7/1996 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSAKRETE BLACKTOP 1/1/1985 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 274

Page 275: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CHEVRON OPEN GEAR LUBRICANT SP 5/7/1996 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00KILFROST AIRTOOL LUBRICANT 8/12/2009 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

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Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ROUGH & READY 8/18/2000 0HMIS 01#322 BLACK BEAUTY OPEN GEAR LUBE 100 ARC 4/30/2004 0HMIS 11BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11CHEVRON CLARITY HYDRA-OIL/AWISO32,46,68 8/20/2002 0HMIS 11LUBRIPLATE NO.176 OPEN GEAR LUBRICANT 1/1/2003 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUACAST 511 HV 7/13/2001 0HMIS 11QUENCHALL QUENCHING OIL 4/3/1997 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11QUINTOLUBRIC 822-300 3/3/2006 0HMIS 11QUINTOLUBRIC 888-68 9/3/2010 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02#322 BLACK BEAUTY OPEN GEAR LUBE 200 MED 4/30/2004 0HMIS 12#322 BLACK BEAUTY OPEN GEAR LUBE 300 HVY 4/30/2004 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 276

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNRAPID SORB 1/1/1996 0NFPA 00AMOQUENCH OIL F 6/14/1995 0NFPA 10BLACK MAGIC HOT MILL LUBE 4/1/1998 0NFPA 10DIALA OIL AX 1/4/1999 0NFPA 10DIALA OIL AX 5/23/2003 0NFPA 10MOBIL DTE OIL MEDIUM 8/21/2001 0NFPA 10MOBILUX EP 1 8/12/2005 0NFPA 10TEXACO TMGL HEAVY/ PREMIUM 1/1/1985 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01CLIMAX 900 LUBRICANT/SEALANT 8/4/2008 0NFPA 01CLIMAX 900 VALVE LUBRICANT 1/8/2007 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01HOUGHTO-SAFE 620 5/14/2010 0NFPA 01KRYTOX GPL-20X & 50X FLUORINATED GREASE 5/5/1995 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 277

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01AP-5 11/15/1995 0NFPA 11CHEVRON GEAR COMPOUND EP ISO 460 10/9/1996 0NFPA 11CHEVRON HYDRAULIC OIL AW ISO 68 4/1/1993 0NFPA 11CHEVRON PINION GREASE 250 CB 3/20/1992 0NFPA 11CHEVRON RANDO HD HYDROLIC OIL 5/29/2008 0NFPA 11CHEVRON SOLUBLE OIL B, CPS233703 10/28/1994 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11DOW CORNING HIGH VACUUM GREASE 1/1/1985 0NFPA 11DOW MOLYKOTE BR-2 PLUS GREASE 4/29/2009 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11ENERPAC HF & HOF HYDRAULIC OIL 3/26/1997 0NFPA 11MICRON MOLY HTC SAE 10 ISO 32/46, #112 9/28/1995 0NFPA 11MOLY PURE SYNTHETIC COMP OIL ISO 32,#158 9/28/1995 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11TEXACO RANDO HD 100-200 HYDROLIC OIL 8/14/2009 0NFPA 11VAL PLEX EP GREASE 2/10/1995 0NFPA 11CHEVRON RUST PREVENTATIVE 1/12/1995 0NFPA 21HIGH CORE 5/21/1993 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *MOLUB-ALLOY 882 EP HEAVY 7/14/2000 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02CHEVRON DIESEL ENG. OIL DELO 6170 SAE 40 7/28/1994 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CHEVRON OPEN GEAR LUBRICANT SP 5/7/1996 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 278

Page 279: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNEXXON GEAR OIL GX 85W-140 7/23/1992 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNLP-500 LUBRICANT 7/30/1993 Nnot given NNMOLY E.P. SEMI-SYNTHETIC GREASE #2, 274 1/1/1995 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 279

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *CHEVRON SOLUBLE OIL B, CPS233703 10/28/1994 0NFPA 11HIGH CORE 5/21/1993 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 280

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Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01HIGH CORE 5/21/1993 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 281

Page 282: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 282

Page 283: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Lubricant Storage Bldg

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 283

Page 284: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01C-5A ANTISEIZE 7/23/1997 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WROUGHT ALUMINUM ALLOY, 3XXX SERIES 5/25/1999 1HMIS 11WROUGHT ALUMINUM ALLOY, 6XXX SERIES 5/25/1999 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 284

Page 285: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ALUNDUM, CRYSTOLON, SEEDED GEL 9/8/1999 0NFPA 01CADMIUM FREE SILVER BRAZING ALLOYS 8/1/2000 0NFPA 01DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31ALUMINUM OXIDE RESIN GRINDING WHEEL 1/30/2007 0NFPA 01 *ALUNDUM WHEEL, ALUMINUM OXIDE GRND WHEEL 3/2/2005 0NFPA 01 *HI-PACT ELECTRODE 4/24/2009 0NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM ALLOYS 11/1/1995 Nnot given NNBESLY/THREADWELL CUTTING TOOLS 5/1/1997 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHOT ROLLED CARBON STEEL 1/18/2007 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NNSTAINLESS STEELS 304, 347, 17-4, 410 11/1/1995 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 285

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Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21NISSEN LOW CHLORIDE METAL MARKER YELLOW 1/5/2011 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PB PENETRATING CATALYST 2/23/1998 0HMIS 22PB PENETRATING CATALYST 7/14/2004 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *STEEL RED LAYOUT FLUID 4/14/2004 1HMIS 32 *ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 286

Page 287: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AEROSOL RED SP-1196, SP1456 5/2/1995 1HMIS 42OPAQUE RED STAINING COLOR 81090 2/13/2004 1HMIS 42STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NNPLV 2040 AEROSPRAY 3/27/1998 Nnot given NN

HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 287

Page 288: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

ENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNMETAL-COR 6 5/8/2008 Nnot given NN *

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AEROSOL RED SP-1196, SP1456 5/2/1995 1HMIS 42OPAQUE RED STAINING COLOR 81090 2/13/2004 1HMIS 42SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *STEEL BLUE LAYOUT FLUID 4/14/2004 1HMIS 32 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 288

Page 289: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32AVIATION FORM-A-GASKET #3 4/15/1997 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNPLV 2040 AEROSPRAY 3/27/1998 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AEROSOL RED SP-1196, SP1456 5/2/1995 1HMIS 42OPAQUE RED STAINING COLOR 81090 2/13/2004 1HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Tradename MSDS Date Health

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 289

Page 290: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00ACCULUBE LB-2000 5/17/2006 0HMIS 10ACCULUBE LB-6800 6/1/2002 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BEAR TEX 12/4/2001 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SPECTRAKOOL 7601 B 9/2/1998 0HMIS 01SUPER LUBE AIR & PWR ACTUATED TOOL LUBE 1/4/2010 0HMIS 01SUPERWOOL - ALL GRADES 5/9/2008 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11C-5A ANTISEIZE 7/23/1997 0HMIS 11LPS TAPMATIC EDGE LUBE 1/31/2003 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11RIDGID DARK THREAD CUTTING OIL 5/27/2009 0HMIS 11RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WROUGHT ALUMINUM ALLOY, 3XXX SERIES 5/25/1999 1HMIS 11

HMIS/NFPA Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 290

Page 291: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

WROUGHT ALUMINUM ALLOY, 6XXX SERIES 5/25/1999 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21NISSEN LOW CHLORIDE METAL MARKER YELLOW 1/5/2011 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1DUSTER AEROSOL DUST REMOVAL SYSTEM 2/26/2001 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *SEEDED GEL CAP CODES:R/F/E/H/A9XX 6/2/2004 0HMIS 01 *SEEDED GEL CAP CODES:R/F/E9X 6/2/2004 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *FOOD GRADE MACHINE OIL 5/28/2003 0HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PB PENETRATING CATALYST 2/23/1998 0HMIS 22PB PENETRATING CATALYST 7/14/2004 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22ARMORSEAL REXTHANE I URETHANE CTNG CLR 4/5/2010 1HMIS 22STRUCTURAL ADHESIVE 332/SEVERE ENV. 1/27/1999 1HMIS 22AIR TOOL CONDITIONER 16-ATC, 8-ATC-S 3/1/2001 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 291

Page 292: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AEROSOL RED SP-1196, SP1456 5/2/1995 1HMIS 42OPAQUE RED STAINING COLOR 81090 2/13/2004 1HMIS 42STEEL INK BLUE (AEROSOL) 6/30/2009 1HMIS 42STAY-SILV BRAZING FLUXES 3/13/2001 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *SHER-KEM HI GL METAL FIN ENML EXTRA WHT 5/8/2010 0HMIS 32 *STEEL BLUE LAYOUT FLUID 4/14/2004 1HMIS 32 *STEEL RED LAYOUT FLUID 4/14/2004 1HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TRIADINE 20 INDUSTRIAL MICROBIOSTAT 1/10/2005 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13ARMORSEAL HI-SLDS POLYURETHANE FLR ENML 8/17/2010 2HMIS 23AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ALUNDUM, CRYSTOLON, SEEDED GEL 9/8/1999 0NFPA 01CADMIUM FREE SILVER BRAZING ALLOYS 8/1/2000 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01GRINDING AND CUTTING WHEELS, RESINOID 12/1/2009 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 6/15/2009 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 292

Page 293: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

RUBBER BONDED ABRASIVE PRODUCT 2/15/2002 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SENTINEL 6/22/1998 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 4/6/2001 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 013M SCOTCH-BRITE HAND PADS 10/5/2010 0NFPA 11CIMPERIAL 1070 5/5/2000 0NFPA 11COOL TOOL 6/17/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11EPOXY BONDED ABRASIVE PRODUCTS 2/5/1999 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11MIKE-O-CUT NO. 87 (TAP/DRILLING FLUID) 6/8/2006 1NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 413M ABRASIVE PRODUCT 248D 4/7/2005 0NFPA 01 *ALUMINUM OXIDE RESIN GRINDING WHEEL 1/30/2007 0NFPA 01 *ALUNDUM WHEEL, ALUMINUM OXIDE GRND WHEEL 3/2/2005 0NFPA 01 *ALUNDUM, CRYSTOLON, SEEDED GEL 2/15/2002 0NFPA 01 *COATED ABRASIVE PRODUCTS 5/30/2002 0NFPA 01 *DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 4/3/2001 0NFPA 01 *POWERFLEX DISCS, ZIRC 1/1/2002 0NFPA 01 *POWERFLEX DISCS, ZIRC PLUS 1/1/2002 0NFPA 01 *EPOXY BONDED ABRASIVES 2/12/2002 0NFPA 11 *GLASS CLEANER 3/18/2008 0NFPA 11 *HI-PACT ELECTRODE 4/24/2009 0NFPA 02BELZONA 9411 RELEASE AGENT 2/18/1993 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 293

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Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32AVIATION FORM-A-GASKET #3 4/15/1997 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31GLASS FIBER BACKING PAD FOR FLAP DISKS 5/9/2000 0not given 01 *THERMOSET LAMINATES 10/1/1997 0not given 02BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM ALLOYS 11/1/1995 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 4/1/1993 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDISCS-PSA 9/3/2002 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNELMELEC/ELMTUBE/PERFOREIM 10/15/1997 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 294

Page 295: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

HI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMASTER CHEF CANOLA SALAD OIL 7/20/2000 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPLV 2040 AEROSPRAY 3/27/1998 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPSA CLOTH DISC, ZIRC DISC,... 3/1/2002 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *LANTHANUM NITRATE HYDRATE, 238554 2/1/2003 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02LANTHANUM NITRATE HYDRATE, 238554 2/1/2003 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12STRUCTURAL ADHESIVE 332/SEVERE ENV. 1/27/1999 1HMIS 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 295

Page 296: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCARBON, ALLOY, AND TOOL STEELS 11/1/1995 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *METAL-COR 6 5/8/2008 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *

HIGH SILVER BRAZING ALLOYS 4/7/2000 0HMIS 00NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21SEEDED GEL CAP CODES:R/F/E/H/A9XX 6/2/2004 0HMIS 01 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 296

Page 297: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

SEEDED GEL CAP CODES:R/F/E9X 6/2/2004 0HMIS 01 *LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12STRUCTURAL ADHESIVE 332/SEVERE ENV. 1/27/1999 1HMIS 22SUPER MET-AL MARKER NUCLEAR GRD WHT 2/19/2007 0HMIS 32AEROSOL RED SP-1196, SP1456 5/2/1995 1HMIS 42OPAQUE RED STAINING COLOR 81090 2/13/2004 1HMIS 42ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *INDUST. URETHANE ALKYD ENAM. UD BASE 4/5/2010 0HMIS 22 *INDUSTRIAL URETHANE ALKYD ENAM EXTRA WHT 7/2/2010 0HMIS 22 *STEEL BLUE LAYOUT FLUID 4/14/2004 1HMIS 32 *STEEL RED LAYOUT FLUID 4/14/2004 1HMIS 32 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 11/29/2000 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 2/8/2000 0NFPA 01RESIN BONDED ABRASIVE PRODUCTS 6/15/2009 0NFPA 01RUBBER BONDED ABRASIVE PRODUCT 2/15/2002 0NFPA 01RUBBER BONDED ABRASIVE PRODUCTS 5/7/1999 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 1/10/2000 0NFPA 01SHELLAC BONDED ABRASIVE PRODUCTS 4/6/2001 0NFPA 01EPOXY BONDED ABRASIVE PRODUCTS 2/5/1999 0NFPA 11BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11COATED ABRASIVE PRODUCTS 5/30/2002 0NFPA 01 *DIAMOND/CUBIC BORON NITRIDE GRIND WHEEL 4/3/2001 0NFPA 01 *EPOXY BONDED ABRASIVES 2/12/2002 0NFPA 11 *BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32AVIATION FORM-A-GASKET #3 4/15/1997 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNRESIN BONDED ABRASIVE PRODUCTS 1/1/2003 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 297

Page 298: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNMETAL-COR 6 5/8/2008 Nnot given NN *REMELT INGOT AND CAST PXX.X SERIES ALLOY 4/29/2010 Nnot given NN *REMELT INGOT UNALLOYED ALUMINUM ALLOYS 11/8/2010 Nnot given NN *WROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

C-5A ANTISEIZE 7/23/1997 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NPLV 2040 AEROSPRAY 3/27/1998 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

RTV SILICONE CLEAR 14055 5/21/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WROUGHT ALUMINUM ALLOY, 3XXX SERIES 5/25/1999 1HMIS 11WROUGHT ALUMINUM ALLOY, 6XXX SERIES 5/25/1999 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 298

Page 299: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 5/6/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 1XXX SERIES 11/24/2015 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 299

Page 300: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Machine Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 300

Page 301: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01DS82-9 DIP SEAL PLASTIC 6/24/1999 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ROHPER 1-GL 2PK V7400 SAFETY YELLOW 4/21/2011 0NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21ROHPER V7400 ALUMINUM 4/19/2011 0NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 301

Page 302: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

601 CHAIN DRIVE PIN&BUSHNG LUBE AERO 10/12/2004 1HMIS 11NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22CRAZY CLEAN 1/3/2012 0NFPA 11GLASS CLEANER 3/18/2008 0NFPA 11 *LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CALIBRATION CHECK GAS 1/1/2006 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12CLEAR PRIMER 11/1/2005 1HMIS 33NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 302

Page 303: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

VALVE ACTION PAINT MARKER 11/1/2005 1HMIS 00 *WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32CLEAR PRIMER 11/1/2005 1HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *SEAL-LOC 1/11/2007 0NFPA 00CRAZY CLEAN 1/3/2012 0NFPA 11XTREME BLUE -20 WWF 6/13/2005 0NFPA 31GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32ROHPER 1-GL 2PK V7400 SAFETY YELLOW 4/21/2011 0NFPA 32SPEARS PRIMER-70 LOW VOC PRIMER PVC CPVC 6/1/2011 0NFPA 32SPEARS PVC-17 LOW VOC PLASTIC PIPE CEMNT 6/1/2011 0NFPA 32LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRAZY CLEAN 1/3/2012 0NFPA 11GLASS CLEANER 3/18/2008 0NFPA 11 *LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 303

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Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0VALVE ACTION PAINT MARKER 11/1/2005 1HMIS 00 *ACRYLIC W/B WHITE 2408 6/3/2005 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01YELLOW 77 WIRE PULLING LUBRICANT 12/21/2005 0HMIS 01DS82-9 DIP SEAL PLASTIC 6/24/1999 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11601 CHAIN DRIVE PIN&BUSHNG LUBE AERO 10/12/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 304

Page 305: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CLEAR PRIMER 11/1/2005 1HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *SEAL-LOC 1/11/2007 0NFPA 00MOBILITH SHC 100 9/14/2011 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE FR-68 12/15/2005 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21XTREME BLUE -20 WWF 6/13/2005 0NFPA 31GLASS CLEANER 3/18/2008 0NFPA 11 *E71T-GS WELDING WIRE 1/1/2008 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12ROHPER V7400 ALUMINUM 4/19/2011 0NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32ROHPER 1-GL 2PK V7400 SAFETY YELLOW 4/21/2011 0NFPA 32SPEARS PRIMER-70 LOW VOC PRIMER PVC CPVC 6/1/2011 0NFPA 32SPEARS PVC-17 LOW VOC PLASTIC PIPE CEMNT 6/1/2011 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01 MECO POTASSIUM IODATE REAGENT 2/14/1986 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 305

Page 306: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEPO COAT NS-100 5/23/2011 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32LU 204 DRY FILM GRAPHITE LUBE AEROSOL 2/4/2013 0NFPA 42ENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 306

Page 307: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 242 THREADLOCKER 5/21/2009 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42EPO COAT NS-100 5/23/2011 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SPEARS PRIMER-70 LOW VOC PRIMER PVC CPVC 6/1/2011 0NFPA 32SPEARS PVC-17 LOW VOC PLASTIC PIPE CEMNT 6/1/2011 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 * MECO POTASSIUM IODATE REAGENT 2/14/1986 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 307

Page 308: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 308

Page 309: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 309

Page 310: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

CLIPPER GREENLOK DP 5/11/2004 0HMIS 00UFALA 5/7/2001 0HMIS 00EZ CAST 2700 3/30/1999 0HMIS 10KAOCRETE A/B/D/..; KAOCAST; KAO-TUFF CFB 4/13/2004 0HMIS 00 *ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01GREENLITE CAST 22 PLUS 8/14/2001 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01UNACAST VF THERMAX/AL 3/19/2003 0HMIS 01VERSAFLOW THERMAX/AL ADTECH 8/2/2002 0HMIS 01CORAL BP 5/15/2001 NHMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ALCOR 5/15/2001 0HMIS 01 *ALCOR 5/11/2004 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *CRYLA 5/11/2004 0HMIS 01 *FIBERFRAX QF CEMENTS 4/17/1998 0HMIS 01 *FIBERFRAX QF CEMENTS 3/5/2007 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *FNS,RS,FRANCE NONSPALL,ROCKSPAR,MEDAL P4 11/1/2000 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *GREENPAK-85-P 5/12/2004 0HMIS 01 *GREENSET-94-P 6/5/2001 0HMIS 01 *INSWOOL HP BLANKET 8# 6/5/2001 0HMIS 01 *INSWOOL PAPER #10 6/1/2001 0HMIS 01 *KAST-O-LITE 50-25 DS 5/12/2004 0HMIS 01 *REFRACTORY BLOCK; REFRACTORY COATING 6/30/2002 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *THERMBOND FORMULA 4 SERIES DRY MIXES 10/3/2001 0HMIS 01 *THERMOGEN 90 PLASTIC 6/1/1998 0HMIS 01 *UNACAST UG60 W/F 5/10/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 310

Page 311: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

VEE BLOCK/VEE BLOCK 35 11/9/1998 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *VERSAFLOW 65/AL PLUS 11/28/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ALUGARD FS 7/1/1998 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02DURALITE 70 8/27/1997 0HMIS 02DURATAB BRICK 8/27/1997 0HMIS 02DURATAB MORTAR 8/27/1997 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SET 45 7/20/2006 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02GROUT / MINRO-AL GROUT 8/21/2002 1HMIS 02MINRO-SIL LD 3/4/2003 1HMIS 02NORDBAK TROWEL MIX RESIN 9/4/2001 0HMIS 12SILICON MOLD RELEASE 1/13/2000 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22SONNEBORN 200 ADHESIVE 6/29/2006 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42BLU-RAM 3/8/2001 0HMIS 02 *DERBY SUPER DUTY FIRECLAY BRICK 9/6/2001 0HMIS 02 *DRI-VIBE (ALL VARIETIES) 10/27/2009 0HMIS 02 *MONOLITHIC GROUT 663A 3/26/2009 0HMIS 02 *NOXRAM 85P, 85PF, 85P FINE, 85P-RM 10/1/2000 0HMIS 02 *SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 311

Page 312: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

SUPER 3000 MORTAR 6/14/2005 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *GEL PATCH 6/28/2006 1HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *HLM-5000 6/28/2006 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *ROTARY QUICKLIME 1/1/1996 1HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13SONOBOND ACTIVATOR 16-69113 12/22/1993 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13PRIMER 733 6/29/2006 0HMIS 33MASTERFLOW 648 CP GROUT AGGREGATE 7/20/2006 0HMIS 03 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *MC1104 (CFX-8S) CERAMIC MORTAR 6/2/1999 0NFPA 00THERMBOND TABULAR SERIES DRY FORMULATION 12/12/1998 0NFPA 00SAKONITE/IF/XR 12/30/1997 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01BRICK MIX 1002/CENTURION/CLIPPER AH... 10/7/1996 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01MIX 333-E EXPANDABLE PAPER 6/17/2009 0NFPA 01NO. 36 REFRACTORY CEMENT 11/11/1999 0NFPA 01PHOXBOND 5/12/2004 0NFPA 01POR-ROK ANCHORING CEMENT 2/1/2004 0NFPA 01TZ 150 PATCH 8/15/2000 0NFPA 01TZ 352 DRY MORTAR 8/15/2000 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31K-25/26/28/30/3000/80,MSDS #151-2 5/1/2003 0NFPA 01 *MODULES/SLEEVES/PADS/FELTS 11/1/1995 0NFPA 01 *MATRICAST TUFFLOOR 5/18/1998 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 312

Page 313: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

BONDING CLAY 3/1/2001 0NFPA 02 *PATRIOT HF FIRE BRICK 10/10/2007 0NFPA 02 *INSBOARD 2600 10/8/2008 NNFPA NNSILICON MOLD RELEASE 7/13/2002 0not given 12FIBERFORM MOLDABLE PRODUCTS CONT RCF 5/5/2011 4not given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALCOR MORTAR 8/2/1999 Nnot given NNALSTOP UNACAST 60 LC/PLUS 8/16/1996 Nnot given NNASBURY MARCOTE 5 REFRACTORY COATING 5/1/1998 Nnot given NNCASTOLAST G ADTECH 11/4/1999 Nnot given NNCLIPPER DP 8/25/2008 Nnot given NNGREENAL-50-C 12/18/1996 Nnot given NNGREENLITE - 45 - L 5/26/1999 Nnot given NNGREENLITE-26 2/27/1995 Nnot given NNGREENPAK-90-PS/PLUS 1/6/1997 Nnot given NNHAWTHORN BOND CLAY.. 5/29/2007 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSBLOK-19 11/5/2008 Nnot given NNK-FAC-19 2/8/1993 Nnot given NNKORUNDAL PLASTIC 2/10/1999 Nnot given NNKS-4 6/2/1999 Nnot given NNKX-99-BF 6/12/2007 Nnot given NNLYTHERM CERAMIC FIBER PAPERS 11/1/1985 Nnot given NNMC-28-L 5/26/1999 Nnot given NNMEXI-KOMO FIRECLAY MORTAR 4/15/1999 Nnot given NNMILPATCH 85 PB 3/15/1996 Nnot given NNMIZZOU CASTABLE PLUS 7/14/1999 Nnot given NNMORCO DURA-FLOOR 8/31/2001 Nnot given NNMORCO FEATHERLITE 1600 3/25/2001 Nnot given NNMORCO PLASTIC 90P GC & GC-X 3/22/2002 Nnot given NNMORCO PLASTIC 90P-F 10/1/2001 Nnot given NNMORCOCAST 45-28 SF-0 5/11/2004 Nnot given NNMORCOCAST FSC -0 2/6/2004 Nnot given NNMORCOCAST HS-0 1/5/2007 Nnot given NNMORCOLITE CASTABLE REFRACTORY 6/7/2011 Nnot given NNPHOCAST 60 2/15/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 313

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Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

RCR 3000 5/24/2001 Nnot given NNSAIRBOND 5/11/1999 Nnot given NNSAKONITE; SAKONITE IF 11/25/1992 Nnot given NNTAYLOR ZIRCON 950 PLASTIC 6/10/1986 Nnot given NNUNACAST 65 LC WITH FIBERS 4/8/1997 Nnot given NNUNI-CAST A 12/2/2002 Nnot given NNUNI-PLAS 85ESS 1/20/2004 Nnot given NNUNI-RAM 85ESS 12/3/2002 Nnot given NNVIBRA-SEAL 3/1/1999 Nnot given NNWAL-CAST INSUL 28 LW 2/12/1997 Nnot given NNXCEL FLOW 60AL 2/6/2003 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *INSULATING FIRE BRICK 2/7/2001 Nnot given NN *INSULATING FIREBRICK 4/1/2003 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *THERMOGEN 85 PLASTIC 1/31/1997 Nnot given NN *US 70 LC, US 60 LC, US 50 LC, US 60 LC G 1/1/2013 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21HYDROCIDE MASTIC 7/3/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21CAST OFF 6/27/2006 0HMIS 21 *LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22HLM-5000 6/28/2006 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 314

Page 315: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SILICON MOLD RELEASE 1/13/2000 0HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31SILICON MOLD RELEASE 7/13/2002 0not given 12CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

EZ CAST 2700 3/30/1999 0HMIS 10CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 315

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Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

HI AL KASTITE 8/27/1997 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11THERMOGEN 90 PLASTIC 6/1/1998 0HMIS 01 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ALUGARD FS 7/1/1998 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02DURATAB MORTAR 8/27/1997 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02MASTERFLOW 648CP GROUT HARDENER 6/28/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22BLU-RAM 3/8/2001 0HMIS 02 *SUPER 3000 MORTAR 6/14/2005 0HMIS 02 *GEL PATCH 6/28/2006 1HMIS 02 *ROTARY QUICKLIME 1/1/1996 1HMIS 03NORDBAK TROWEL MIX HARDENER 9/4/2001 0HMIS 13SONOBOND ACTIVATOR 16-69113 12/22/1993 0HMIS 13PHOXBOND 5/12/2004 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTAYLOR ZIRCON 950 PLASTIC 6/10/1986 Nnot given NNTHERMBOND/BRAKE,TABULAR SERIES ACTIVATOR 11/20/1998 Nnot given NNUNI-PLAS 85ESS 1/20/2004 Nnot given NNUNI-RAM 85ESS 12/3/2002 Nnot given NNTHERMOGEN 85 PLASTIC 1/31/1997 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 316

Page 317: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

HYDROCIDE MASTIC 7/3/2006 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SONNEBORN 200 ADHESIVE 6/29/2006 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HLM-5000 6/28/2006 0HMIS 22 *PRIMER 733 6/29/2006 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 317

Page 318: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

CLIPPER GREENLOK DP 5/11/2004 0HMIS 00EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00UFALA 5/7/2001 0HMIS 00REGULAR DRIERITE 8/12/1994 1HMIS 00EZ CAST 2700 3/30/1999 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0KAOCRETE A/B/D/..; KAOCAST; KAO-TUFF CFB 4/13/2004 0HMIS 00 *222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01DUOGARD 5/1/2009 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 318

Page 319: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DUOGARD II WATER BASE FORM RELEASE AGENT 8/23/2010 0HMIS 01FIFTY-FIFTY MORTAR 12/7/2000 0HMIS 01GREENLITE CAST 22 PLUS 8/14/2001 0HMIS 01HI AL KASTITE 8/27/1997 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KAOLITE AND INSULITE REFRATORY CASTABLE 3/31/2009 0HMIS 01KAST-O-LITE 16 PLUS 7/3/2001 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01PYRO-BLOC ELEMENT SUPPORT SYSTEM 10/27/2009 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01UNACAST VF THERMAX/AL 3/19/2003 0HMIS 01VERSAFLOW THERMAX/AL ADTECH 8/2/2002 0HMIS 01CORAL BP 5/15/2001 NHMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HYDROCIDE MASTIC 7/3/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1ALCOR 5/15/2001 0HMIS 01 *ALCOR 5/11/2004 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *CRYLA 5/11/2004 0HMIS 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 319

Page 320: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

FIBERFRAX QF CEMENTS 3/5/2007 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *FNS,RS,FRANCE NONSPALL,ROCKSPAR,MEDAL P4 11/1/2000 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *GREENPAK-85-P 5/12/2004 0HMIS 01 *GREENSET-94-P 6/5/2001 0HMIS 01 *INSWOOL HP BLANKET 8# 6/5/2001 0HMIS 01 *INSWOOL PAPER #10 6/1/2001 0HMIS 01 *KAST-O-LITE 50-25 DS 5/12/2004 0HMIS 01 *REFRACTORY BLOCK; REFRACTORY COATING 6/30/2002 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *THERMBOND FORMULA 4 SERIES DRY MIXES 10/3/2001 0HMIS 01 *THERMOGEN 90 PLASTIC 6/1/1998 0HMIS 01 *UNACAST UG60 W/F 5/10/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *VEE BLOCK/VEE BLOCK 35 11/9/1998 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *VERSAFLOW 65/AL PLUS 11/28/2001 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *CAST OFF 6/27/2006 0HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ALUGARD FS 7/1/1998 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CER-WOOL BULK LOOSE & CHOPPED LT,RT... 10/1/1995 0HMIS 02DERBY 3000 10/1/1997 0HMIS 02DURALITE 70 8/27/1997 0HMIS 02DURATAB BRICK 8/27/1997 0HMIS 02DURATAB MORTAR 8/27/1997 0HMIS 02HP CASTABLE 6/18/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SET 45 7/20/2006 0HMIS 02SUPER 3000 MORTAR 7/1/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02GROUT / MINRO-AL GROUT 8/21/2002 1HMIS 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 320

Page 321: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MINRO-SIL LD 3/4/2003 1HMIS 02MASTERFLOW 648CP GROUT HARDENER 6/28/2006 0HMIS 12MASTERFLOW 648CP GROUT RESIN PART A 6/28/2006 0HMIS 12NORDBAK TROWEL MIX RESIN 9/4/2001 0HMIS 12SILICON MOLD RELEASE 1/13/2000 0HMIS 12SONOBOND BASE, COMPONENT A 12/2/1993 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32SONNEBORN 200 ADHESIVE 6/29/2006 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42BLU-RAM 3/8/2001 0HMIS 02 *DERBY SUPER DUTY FIRECLAY BRICK 9/6/2001 0HMIS 02 *DRI-VIBE (ALL VARIETIES) 10/27/2009 0HMIS 02 *MONOLITHIC GROUT 663A 3/26/2009 0HMIS 02 *NOXRAM 85P, 85PF, 85P FINE, 85P-RM 10/1/2000 0HMIS 02 *SILICA PRODUCTS - REFRACTORY INSULATION 1/25/2016 0HMIS 02 *SUPER 3000 MORTAR 6/14/2005 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *GEL PATCH 6/28/2006 1HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *HLM-5000 6/28/2006 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *ROTARY QUICKLIME 1/1/1996 1HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13NORDBAK TROWEL MIX HARDENER 9/4/2001 0HMIS 13

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 321

Page 322: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SONOBOND ACTIVATOR 16-69113 12/22/1993 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13PRIMER 733 6/29/2006 0HMIS 33MASTERFLOW 648 CP GROUT AGGREGATE 7/20/2006 0HMIS 03 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNMC1104 (CFX-8S) CERAMIC MORTAR 6/2/1999 0NFPA 00THERMBOND TABULAR SERIES DRY FORMULATION 12/12/1998 0NFPA 00SAKONITE/IF/XR 12/30/1997 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01INSULATING REFRACTORY BRICK 151-1 3/31/2009 0NFPA 01INSULATING REFRACTORY BRICK 151-2 12/2/2009 0NFPA 01MIX 333-E EXPANDABLE PAPER 6/17/2009 0NFPA 01NO. 36 REFRACTORY CEMENT 11/11/1999 0NFPA 01PHOXBOND 5/12/2004 0NFPA 01POR-ROK ANCHORING CEMENT 2/1/2004 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01TR-2000SL 1/23/1998 0NFPA 01TZ 150 PATCH 8/15/2000 0NFPA 01TZ 352 DRY MORTAR 8/15/2000 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 322

Page 323: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

K-25/26/28/30/3000/80,MSDS #151-2 5/1/2003 0NFPA 01 *MODULES/SLEEVES/PADS/FELTS 11/1/1995 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *MATRICAST TUFFLOOR 5/18/1998 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42BONDING CLAY 3/1/2001 0NFPA 02 *PATRIOT HF FIRE BRICK 10/10/2007 0NFPA 02 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *INSBOARD 2600 10/8/2008 NNFPA NNDURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31SILICON MOLD RELEASE 7/13/2002 0not given 12FIBERFORM MOLDABLE PRODUCTS CONT RCF 5/5/2011 4not given NNACRYLIC GROUT ADDITIVE, TA-869 4/25/1996 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALCOR MORTAR 8/2/1999 Nnot given NNALSTOP UNACAST 60 LC/PLUS 8/16/1996 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNASBURY MARCOTE 5 REFRACTORY COATING 5/1/1998 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCASTOLAST G ADTECH 11/4/1999 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLIPPER DP 8/25/2008 Nnot given NNCONTACT NB NITRIDE BONDED SILICON CARBID 7/1/1997 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 323

Page 324: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGREENAL-50-C 12/18/1996 Nnot given NNGREENLITE - 45 - L 5/26/1999 Nnot given NNGREENLITE-26 2/27/1995 Nnot given NNGREENPAK-90-PS/PLUS 1/6/1997 Nnot given NNGREFCON 98 SP/PLUS 8/13/1996 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHAWTHORN BOND CLAY.. 5/29/2007 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINSBLOK-19 11/5/2008 Nnot given NNKORUNDAL PLASTIC 2/10/1999 Nnot given NNKS-4 6/2/1999 Nnot given NNKX-99-BF 6/12/2007 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNLYTHERM CERAMIC FIBER PAPERS 11/1/1985 Nnot given NNMC-28-L 5/26/1999 Nnot given NNMEXI-KOMO FIRECLAY MORTAR 4/15/1999 Nnot given NNMIZZOU CASTABLE PLUS 7/14/1999 Nnot given NNMORCO 90 P FINE 7/1/1988 Nnot given NNMORCO DURA-FLOOR 8/31/2001 Nnot given NNMORCO FEATHERLITE 1600 3/25/2001 Nnot given NNMORCO PLASTIC 90P GC & GC-X 3/22/2002 Nnot given NNMORCO PLASTIC 90P-F 10/1/2001 Nnot given NNMORCOCAST 45-28 SF-0 5/11/2004 Nnot given NNMORCOCAST 95C-0 5/11/2004 Nnot given NNMORCOCAST FSC -0 2/6/2004 Nnot given NNMORCOCAST HS-0 1/5/2007 Nnot given NNMORCOLITE CASTABLE REFRACTORY 6/7/2011 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPERIAL 60 6/25/1996 Nnot given NNPHOCAST 60 2/15/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 324

Page 325: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNRCR 3000 5/24/2001 Nnot given NNSAIRBOND 5/11/1999 Nnot given NNSAKONITE; SAKONITE IF 11/25/1992 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTAYLOR ZIRCON 950 PLASTIC 6/10/1986 Nnot given NNTHERMBOND/BRAKE,TABULAR SERIES ACTIVATOR 11/20/1998 Nnot given NNUNACAST 65 LC WITH FIBERS 4/8/1997 Nnot given NNUNI-CAST A 12/2/2002 Nnot given NNUNI-PLAS 85ESS 1/20/2004 Nnot given NNUNI-RAM 85ESS 12/3/2002 Nnot given NNVIBRA-SEAL 3/1/1999 Nnot given NNWAL-CAST INSUL 28 LW 2/12/1997 Nnot given NNXCEL FLOW 60AL 2/6/2003 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *INSULATING FIRE BRICK 2/7/2001 Nnot given NN *INSULATING FIREBRICK 4/1/2003 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *THERMOGEN 85 PLASTIC 1/31/1997 Nnot given NN *US 70 LC, US 60 LC, US 50 LC, US 60 LC G 1/1/2013 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02THERMBOND/BRAKE,TABULAR SERIES ACTIVATOR 11/20/1998 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01KAST-O-LITE 16 PLUS 7/3/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 325

Page 326: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

THERMBOND FORMULA 4 SERIES DRY MIXES 10/3/2001 0HMIS 01 *VERSAFLOW 65/AL PLUS 11/28/2001 0HMIS 01 *ALUGARD FS 7/1/1998 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02NORDBAK TROWEL MIX RESIN 9/4/2001 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SUPER 3000 MORTAR 6/14/2005 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *HLM-5000 6/28/2006 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *NORDBAK TROWEL MIX HARDENER 9/4/2001 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

DUOGARD 5/1/2009 0HMIS 01DUOGARD II WATER BASE FORM RELEASE AGENT 8/23/2010 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 326

Page 327: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MASTERFLOW 648CP GROUT HARDENER 6/28/2006 0HMIS 12MASTERFLOW 648CP GROUT RESIN PART A 6/28/2006 0HMIS 12NORDBAK TROWEL MIX RESIN 9/4/2001 0HMIS 12SONOBOND BASE, COMPONENT A 12/2/1993 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22GEL PATCH 6/28/2006 1HMIS 02 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *HLM-5000 6/28/2006 0HMIS 22 *NORDBAK TROWEL MIX HARDENER 9/4/2001 0HMIS 13SONOBOND ACTIVATOR 16-69113 12/22/1993 0HMIS 13PRIMER 733 6/29/2006 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNINSULATING FIREBRICK 4/1/2003 Nnot given NN *

CLIPPER GREENLOK DP 5/11/2004 0HMIS 00UFALA 5/7/2001 0HMIS 00GREENLITE CAST 22 PLUS 8/14/2001 0HMIS 01KAST-O-LITE 16 PLUS 7/3/2001 0HMIS 01UNACAST VF THERMAX/AL 3/19/2003 0HMIS 01VERSAFLOW THERMAX/AL ADTECH 8/2/2002 0HMIS 01CORAL BP 5/15/2001 NHMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 327

Page 328: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21ALCOR 5/15/2001 0HMIS 01 *ALCOR 5/11/2004 0HMIS 01 *ALCOR 32 3/6/2001 0HMIS 01 *ALCOR PLASTIC 5/9/2001 0HMIS 01 *CRYLA 5/11/2004 0HMIS 01 *GREENLITE-45-L AL PLUS 5/9/2001 0HMIS 01 *GREENPAK-85-P 5/12/2004 0HMIS 01 *GREENSET-94-P 6/5/2001 0HMIS 01 *INSWOOL PAPER #10 6/1/2001 0HMIS 01 *KAST-O-LITE 50-25 DS 5/12/2004 0HMIS 01 *SAIRSET CEMENT 5/2/2001 0HMIS 01 *THERMBOND FORMULA 4 SERIES DRY MIXES 10/3/2001 0HMIS 01 *UNACAST UG60 W/F 5/10/2001 0HMIS 01 *UNACAST VF65/AL 6/5/2001 0HMIS 01 *VERSAFLOW 45/AL ADTECH 5/9/2001 0HMIS 01 *VERSAFLOW 65/AL PLUS 11/28/2001 0HMIS 01 *SUPER 3000 MORTAR 7/1/1997 0HMIS 02SL 1 SEALANT 6/29/2006 0HMIS 22SUPER 3000 MORTAR 6/14/2005 0HMIS 02 *NORDBAK TROWEL MIX HARDENER 9/4/2001 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TZ 150 PATCH 8/15/2000 0NFPA 01TZ 352 DRY MORTAR 8/15/2000 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *RCR 3000 5/24/2001 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 328

Page 329: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

FE 348-M B-RESIN 3/1/2007 1HMIS 11SONOBOND BASE, COMPONENT A 12/2/1993 0HMIS 12SL 1 SEALANT 6/29/2006 0HMIS 22GEL PATCH 6/28/2006 1HMIS 02 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *HLM-5000 6/28/2006 0HMIS 22 *ROTARY QUICKLIME 1/1/1996 1HMIS 03PRIMER 733 6/29/2006 0HMIS 33QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMORCO DURA-FLOOR 8/31/2001 Nnot given NNMORCO FEATHERLITE 1600 3/25/2001 Nnot given NNMORCO PLASTIC 90P GC & GC-X 3/22/2002 Nnot given NNMORCO PLASTIC 90P-F 10/1/2001 Nnot given NNMORCOCAST 45-28 SF-0 5/11/2004 Nnot given NNMORCOCAST 95C-0 5/11/2004 Nnot given NNMORCOCAST HS-0 1/5/2007 Nnot given NNMORCOLITE CASTABLE REFRACTORY 6/7/2011 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 329

Page 330: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Masons Shop

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 330

Page 331: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

CARTRIDGES FOR POWDER DEVICES 1/1/2011 2HMIS 00 *ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01CARDABLE FIBER,CMPLX REINFMNTS,CRATEC,.. 9/23/1998 0HMIS 01FBS-1 ROCKWOOL INSULATION 9/1/2005 0HMIS 01MILLED FIBER 9/23/1998 0HMIS 01INDICATING DRIERITE 1/3/2000 1HMIS 01C-5A ANTISEIZE 7/23/1997 0HMIS 11C5-A COPPER ANTI-SEIZE STICK 10/24/2003 0HMIS 11C5-A COPPER BASED ANTI-SEIZE LUBRICANT 1/7/2004 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11FIXMASTER METAL MAGIC STEEL EPOXY 98853 9/20/2005 0HMIS 11LOCTITE 598 BLK HI PERFORM RTV GSKT MRKR 4/15/2004 0HMIS 11NICKEL GRADE ANTI-SEIZE 77164 1/6/2005 0HMIS 11SURTAC 2000/HD/RD/XD/AEROSOL BASE 1/1/2000 0HMIS 11248 MED STRENGTH THREADLOCKER STICK 10/29/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11LOCTITE 220 THREADLOCKER 10/13/2004 1HMIS 11LOCTITE QUICKSTIX 248 THREADLOCK MED 11/21/2007 1HMIS 11SHEET,PLATE,ROD,BAR,BLD,XTRUD&DRWN PRDTS 8/12/1996 1HMIS 11SILVER GRADE ANTI-SEIZE LUBRICANT 76764 6/5/2006 1HMIS 11XO-RUST ANTI-RUST ENAMEL 7/10/2012 0HMIS 21PLIOBOND 30 11/5/1996 0HMIS 31BATTERY TERMINAL 278 7/23/2001 0HMIS 41COATING 368 KDC-E-162 9/24/1998 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *ICI 3000 MORTAR 6/5/1998 0HMIS 01 *K-20, K-22 HS, K-23, K-24 HS, K-25 12/1/1995 0HMIS 01 *MASTERFLOW 648CP PLUS GROUT PTC 3/16/2012 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *LOCTITE 680 RETAINING COMPOUND SLIP FIT 8/5/2006 1HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SVENSKA SILICA (ALL GRADES) 6/1/1998 0HMIS 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 331

Page 332: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02KLEAN STRIP ADHESIVE REMOVER 5/17/2011 0HMIS 12LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE FM FAST GRT 21.4LB PT A 5/12/2009 0HMIS 12GASKET ELIMINATOR 518 SEALANT 1/26/2006 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12LOCTITE THREAD SEALANT WITH PTFE 30561 1/25/2006 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 322880 GENERAL SPRAY ADHESIVE 5/10/1999 0HMIS 42CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *FLEXANE FAST CURE CURING AGENT 1/8/2003 0HMIS 12 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *660 QUICK METAL RETAINING COMPOUND 2/3/2006 1HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *OATEY PURPLE PRIMER CLEANER NSF LISTED 5/20/2005 1HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TUFF GUY ACTION MARKER HD BLACK 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD BLUE 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD RED 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD WHITE 8/21/2007 1HMIS 42 *MASTERFLOW 928 GROUT 1/31/1999 0HMIS 03PALCO 770F 5/1/1999 1HMIS 03LN-604 LATEX PROJECT & FOAM ADHESIVE 6/21/2010 0HMIS 13LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13LOCTITE FM FAST GRT 21.4LB PT B 5/5/2009 0HMIS 13

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 332

Page 333: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43EPOXY WELDKIT PART "B" 2/4/2003 0HMIS 13 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *OATEY PVC RAIN R SHINE BLUE CEMENT 5/20/2005 1HMIS 33 *PALCO 450 3/20/2007 0NFPA 00965AP-G, BUILD UP AP-G, TTX-1 AP-G 3/20/2002 0NFPA 10BUILD-UP LH, SELF-HARDENING, MULTI,... 5/25/1999 0NFPA 10CASTWELD 55, 99, T55 5/26/1999 0NFPA 10COMPOSITE WIRE-100,101,103,117,121,... 11/28/2001 0NFPA 10STOODY 19, 21, 31, 33, 35, 2124,STOODITE 11/5/1997 0NFPA 10STOODY 35 COATED ELECTRODES 3/11/2008 0NFPA 10CRONACUT EAGLE 1100 8/1/1996 0NFPA 00 *COMPOSITE WIRE-TRACKWEAR,NICROMANG,110,. 7/9/2003 0NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01CHICO A SEALING COMPOUND 5/28/2008 0NFPA 01DV/-38/-AH/-P GREENAL-83MP/85 8/29/1997 0NFPA 01FLEETWELD 35LS ELECTRODE 12/1/2001 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01JETWELD 3, AWS E7024 3/22/1999 0NFPA 01KRUZITE-70/70B/D/R;BRICK MIX1006;R8008/M 4/3/1998 0NFPA 01REFRAX 20-COMPACTED AND CAST 8/31/1992 0NFPA 015920 COPPER HI PERFORM RTV SILICONE 12/4/2008 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11561 PIPE THREAD SLNT 19GR STK 4/7/2004 1NFPA 11BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11LOCTITE 569 THREAD SEALANT HI STRGTH HYD 1/22/1996 1NFPA 11PERMANENT THREADLOCKER 262 1/27/1999 1NFPA 11PST PIPE SLNT W/TFLN567THRED SLNT HITEMP 1/27/1999 1NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31PROPANE 11/10/2005 0NFPA 41HI-PACT ELECTRODE 4/24/2009 0NFPA 02LINCORE 50 FLUX CORED ELECTRODE 11/1/2006 0NFPA 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 333

Page 334: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

QUICK CLEAN 2/28/1997 0NFPA 02SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02X-ERGON 100XL 1/8 4/11/1991 0NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02MINRO-TEK PAK G/45G, TEK RAM GC,... 5/18/1996 1NFPA 02EPOXY CEMENT KIT 2/3/1999 0NFPA 12SC 2000 CEMENT 2/3/1999 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12BELZONA 1211 (E-METAL) BASE 10/21/1997 1NFPA 12BELZONA 2211(MP HI-BUILD ELASTOMER)BASE 1/17/2005 1NFPA 12FAST CURE EPOXY, 21425 10/21/2004 1NFPA 12ACOUSTICAL BACKING BOARD, THERMACUBE... 9/3/1997 0NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ROHPER 1-GL 2PK V7400 ALMOND 4/19/2011 0NFPA 32ROHPER 1-GL 2PK V7400 MACHINE TOOL GRAY 4/19/2011 0NFPA 32HETRON 922 4/26/1996 1NFPA 32ALL PURPOSE SPRAY ADHESIVE #2880 6/23/2003 0NFPA 42HI-IMPACT ELECTRODE 9/5/2001 0NFPA 02 *MUREX SOLID STAINLESS RODS AND WIRES 11/10/2006 0NFPA 02 *STAINWELD MANUAL ELECTRODES 4/1/1999 0NFPA 02 *LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13KC850 TUNGSTEN CARBID 8/31/2009 0NFPA 03 *CORVE8301 5/8/1996 NNFPA NNCRONAWELD EAGLE 3880 8/1/1996 0not given 00CRONAWELD EAGLE 3881 8/1/1996 0not given 00LEAK LOCK 3/15/2000 0not given 31JETWELD LH-110M MR COVERED ELECTRODE 7/28/2003 0not given 01 *BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAHEW1512WHO W-15,WALMART LATEX CAULK,WHT 10/4/1999 Nnot given NNALL STYLES OF FIBERGLASS WOVEN TEXTILE 4/17/2003 Nnot given NNALUM.ALLOYS/ALUM.ALLOYS W/LEAD8975K SER. 3/1/1990 Nnot given NNBHA NEUTRALITE 11/29/2005 Nnot given NNBONDED MOLDED ABRASIVE PRODUCTS 3/1/2007 Nnot given NNCARBON AND ALLOY STEELS 7/1/1989 Nnot given NNCARBON BLOCKS-BENEMEC S 3/31/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 334

Page 335: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

DERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 470-300 EPOXY VINYL ESTER RESIN 3/18/1996 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNGLASTIC GRADES: TSF SHEET & SCUFF LINER 10/1/1996 Nnot given NNGREENKLEEN-60 PLUS 3/10/1999 Nnot given NNHI ALUMINA BRCK(UNBURND,PHOSPHATE-BOND) 1/5/1999 Nnot given NNHI ALUMINA MORTARS(WET,PHOSPHATE-BONDED) 10/7/1998 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNIPEX CONDUIT CEMENT 6/30/2003 Nnot given NNNOVACON 85 6/1/1998 Nnot given NNPALCO 808 5/1/1999 Nnot given NNPIPE AND TANK INSULATION MINERAL WOOL 1/10/2003 Nnot given NNSAKRETE BLACKTOP PATCH 6/1/1991 Nnot given NNSELECTRODE 1115 1/1/1998 Nnot given NNSELECTRODE 1144 6/1/1998 Nnot given NNTEMPMAT 8/2/2005 Nnot given NNTITANIUM NITRIDE COATING 1/1/1991 Nnot given NNVASCO SPECIALTY STEELS 4/1/1990 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNE6011 WELDING ELECTRODE GROUP A 7/14/2005 Nnot given NN *E7018 WELDING ELECTRODE GROUP B 7/14/2005 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *PALCO 700 5/1/1999 Nnot given NN *PALCO 715 9/14/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *S/S / CAST IRON AWS WELDING ELECTRODES 7/1/1999 Nnot given NN *SAKRETE HIGH STRENGTH CONCRETE MIX 9/30/2005 Nnot given NN *STAINLESS STEEL ARC WELD ELECTRODE 7/16/2007 Nnot given NN *STUD EXTRACTOR (300A,500,500 TIG) 1/1/1985 Nnot given NN *UNDER INSULATION COATING 1027 UIC BLACK 7/1/2003 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 335

Page 336: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CRYSTAL CLEAN 142 + MINERAL SPIRITS 2/14/2008 0HMIS 21EXXSOL D110 FLUID 5/12/2010 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21LPS 3 HEAVY-DUTY RUST INHIBITOR 8/21/1996 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21XO-RUST ANTI-RUST ENAMEL 7/10/2012 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21COATING 368 KDC-E-162 9/24/1998 0HMIS 01 *LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22SW WOOD CLSC POLY VARN A67V1 HI GLS CLR 7/9/1999 0HMIS 22454 PRISM SURFACE INSENSITIVE IA (45404) 11/25/2003 1HMIS 22LOCTITE 330 DEPEND NO-MIX 2/6/2009 1HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *PSI-803 WHITE - MS SLNT 1/14/2009 0NFPA 01BELZONA 9111 (CLEANER/DEGREASER) 10/21/1997 0NFPA 21CHEVRON OPEN GEAR LUBRICANT GRADE 250 NC 10/20/1994 0NFPA 21CRC 2-26 10/30/1995 0NFPA 21CRC POWER LUBE MP LUBE BULK 6/14/2006 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21KLEENAPART (N&I) 1563 3/13/1998 0NFPA 21LIQUID WRENCH IND CHAIN & WIRE ROPE LUB 6/3/2008 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21ODC-FREE CLEANER & DEGREASER 2/17/1999 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21KROIL 6/7/2009 NNFPA N13M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22WD-40 AEROSOL 12/1/2004 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32BELZONA 1141 CONDUCTIVE METAL BASE SOL 5/8/2009 0NFPA 13HI-POINT 90 4/19/1996 2NFPA 23

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 336

Page 337: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNGLYPTEX ENAMEL 4124 BLACK 2/21/1991 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *SUPCO 88 OIL ADDITIVE 8/18/1998 Nnot given NN *

KILFROST AIRTOOL LUBRICANT 8/12/2009 0HMIS 00SURTAC 2000/HD/RD/XD/AEROSOL BASE 1/1/2000 0HMIS 11LPS 3 HEAVY-DUTY RUST INHIBITOR 8/21/1996 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LPS ZERO TRI SUPER CLEANER/DEGREASER 1/31/2003 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41008-ZINC GALVANIZING (AEROSOL) 8/2/1992 0HMIS 41 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22DUSTALL 3/1/2008 1HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22PRIMER N 7649 25GM, 21347 1/3/2005 0HMIS 322880 GENERAL SPRAY ADHESIVE 5/10/1999 0HMIS 42CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PRIMER N 7649 25GM, 21347 9/27/2004 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43ARGON 12/1/1992 0NFPA 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 337

Page 338: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

OXYGEN 10/1/1997 0NFPA 00THE ATMOSPHERE 3/9/1996 0NFPA 00ACETYLENE 6/7/1996 0NFPA 40CONTACT CLEANER 2000 5/21/1996 1NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ENVIRONMENTAL MASTER MECHANIC AEROSOL 2/14/1997 0NFPA 11CRC 2-26 10/30/1995 0NFPA 21CRC POWER LUBE MP LUBE BULK 6/14/2006 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41PROPANE 11/10/2005 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CABLE CLEAN DEGREASER 9/22/2011 0NFPA 02QUICK CLEAN 2/28/1997 0NFPA 02BLUE SHOWER II 4/29/1998 1NFPA 02WD-40 AEROSOL 12/1/2004 0NFPA 22WHITE LITHIUM GREASE 11/4/2010 0NFPA 32AEROLEX PLUS AEROSOL 7/25/2008 0NFPA 42ALL PURPOSE SPRAY ADHESIVE #2880 6/23/2003 0NFPA 42CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42DOW CORNING 321 DRY FILM LUBR (AEROSOL) 11/3/1995 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SP-400 AEROSOL 9/25/1997 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BUTANE-LIQUIFIED PETROLEUM GAS 7/27/1994 0not given 41CALIBRATION CHECK GAS 1/1/2006 Nnot given NNEASY-OFF FUME FREE OVEN CLEANER 2/13/1993 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 338

Page 339: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01248 MED STRENGTH THREADLOCKER STICK 10/29/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11LOCTITE 220 THREADLOCKER 10/13/2004 1HMIS 11LOCTITE QUICKSTIX 248 THREADLOCK MED 11/21/2007 1HMIS 11SILVER GRADE ANTI-SEIZE LUBRICANT 76764 6/5/2006 1HMIS 11ICI 3000 MORTAR 6/5/1998 0HMIS 01 *LOCTITE 680 RETAINING COMPOUND SLIP FIT 8/5/2006 1HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02MOLDEX CONCENTRATE 3/1/2006 0HMIS 02LOCTITE FM FAST GRT 21.4LB PT A 5/12/2009 0HMIS 12SUPERFLEX BLU RTV SILICONE ADHES SEALANT 2/5/1999 0HMIS 12GASKET ELIMINATOR 518 SEALANT 1/26/2006 1HMIS 12LOCTITE 290 TREADLOCKER WICKING GRADE 1/25/2006 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12LOCTITE 603 RETAINING CMPD PRESS FIT 2/3/2006 1HMIS 12LOCTITE 609 RETAINING CMPD PRESS F 1/25/2006 1HMIS 12LOCTITE THREADLOCKER 2760 HIGH STRENGTH 10/13/2000 1HMIS 12LOCTITE 330 DEPEND NO-MIX 2/6/2009 1HMIS 22PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32FLEXANE FAST CURE CURING AGENT 1/8/2003 0HMIS 12 *660 QUICK METAL RETAINING COMPOUND 2/3/2006 1HMIS 12 *LOCTITE 222 THREADLOCKER LOW STRENGTH 1/25/2006 1HMIS 12 *LOCTITE 262 THREADLOCKER HI STRENGTH 1/25/2006 1HMIS 12 *LOCTITE FM FAST GRT 21.4LB PT B 5/5/2009 0HMIS 13MASTERFLOW 648CP PLUS GROUT PTB 2/23/2012 0HMIS 13CLEAR CLEANER 11/1/2005 1HMIS 33CLEAR PRIMER CLEANER 1/1/1999 1HMIS 33PVC CLEAR HEAVY BODIED CEMENT 1/26/2012 1HMIS 33PVC CLEAR MEDIUM BODIED CEMENT 1/1/2010 1HMIS 33PVC GRAY MEDIUM BODIED CEMENT 1/26/2012 1HMIS 33EPOXY WELDKIT PART "B" 2/4/2003 0HMIS 13 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 339

Page 340: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

OATEY #5 PASTE FLUX 5/1/2009 0HMIS 13 *FLEXANE FAST CURE RESIN 1/8/2003 1HMIS 13 *ITW EPCON CERAMIC 6 HARDENER 11/30/2000 1HMIS 13 *WEAR GUARD HIGH LOAD RESIN EPOXY 10/10/2006 1HMIS 13 *PURPLE PRIMER 1/26/2012 1HMIS 33 *PVC GRAY SCH. 80 HEAVY BODIED CEMENT 1/26/2012 1HMIS 33 *EAGLE-FLUX XL 1/1/2003 0NFPA 01VAL PLEX EP GREASE 2/10/1995 0NFPA 11561 PIPE THREAD SLNT 19GR STK 4/7/2004 1NFPA 11567 THREAD SEALANT PST WITH PTFE 56747 1/25/2006 1NFPA 11LOCTITE 569 THREAD SEALANT HI STRGTH HYD 1/22/1996 1NFPA 11PST PIPE SLNT W/TFLN567THRED SLNT HITEMP 1/27/1999 1NFPA 11LIQUID WRENCH IND CHAIN & WIRE ROPE LUB 6/3/2008 0NFPA 21DENSE SODA ASH 12/10/1995 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02NICKEL METAL HYDRIDE BATTERY 7/22/2005 1NFPA 02EPOXY CEMENT KIT 2/3/1999 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 12THREAD SEALANT WITH PTFE #30534 11/12/2004 1NFPA 12ACETIC ACID, GLACIAL 10/15/1994 1NFPA 22HETRON 922 4/26/1996 1NFPA 32PARABOND P-8 CLEAR LOW VOC PIPE CEMENT 2/1/2010 1NFPA 32WYNN'S MACHINE CLEANER 11/7/1997 0NFPA 03POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03BELZONA 1111 (SUPER METAL) SOLIDIFIER 2/1/2007 1NFPA 13BELZONA1341(SUPERMETALGLIDE)BSE GRAY&BLU 5/11/1998 1NFPA 13LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13HI-POINT 90 4/19/1996 2NFPA 23DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 470-300 EPOXY VINYL ESTER RESIN 3/18/1996 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 340

Page 341: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

ER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNLITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNMASTERFLOW 648CP PL GRT UNT 0.43CF 12/3/2009 Nnot given NNPOLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NNPORTLAND CEMENT SOUTHDOWN TYPE I/II 5/1/2000 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NNZOOM SPOUT OILER 4/10/2007 Nnot given NNE6011 WELDING ELECTRODE GROUP A 7/14/2005 Nnot given NN *E7018 WELDING ELECTRODE GROUP B 7/14/2005 Nnot given NN *SAKRETE HIGH STRENGTH CONCRETE MIX 9/30/2005 Nnot given NN *STAINLESS STEEL ARC WELD ELECTRODE 7/16/2007 Nnot given NN *

CARTRIDGES FOR POWDER DEVICES 1/1/2011 2HMIS 00 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Explosive

GASOILA SOFT SET 5/18/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LPS ZERO TRI SUPER CLEANER/DEGREASER 1/31/2003 0HMIS 31MID-WEST #14-1271A BLACK ADHESIVE 1/12/2000 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31P-6 PVC CEMENT 7/8/2002 0HMIS 31PLIOBOND 30 11/5/1996 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31BATTERY TERMINAL 278 7/23/2001 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41COATING 368 KDC-E-162 9/24/1998 0HMIS 01 *008-ZINC GALVANIZING (AEROSOL) 8/2/1992 0HMIS 41 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02MOLDEX CONCENTRATE 3/1/2006 0HMIS 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 341

Page 342: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

DUSTALL 3/1/2008 1HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32LOCTITE THREAD SEALANT WITH PTFE 30561 1/25/2006 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32PRIMER N 7649 25GM, 21347 1/3/2005 0HMIS 32TARSET R THINNER, T-13 12/1/1988 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 322880 GENERAL SPRAY ADHESIVE 5/10/1999 0HMIS 42CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PRIMER N 7649 25GM, 21347 9/27/2004 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42WELDERS BLACK MAGIC 5/12/2006 1HMIS 42OATEY PURPLE PRIMER CLEANER NSF LISTED 5/20/2005 1HMIS 32 *MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *CLEAR CLEANER 11/1/2005 1HMIS 33CLEAR PRIMER CLEANER 1/1/1999 1HMIS 33HOMER 828 PVC SOLVENT CEMENT 8/15/2007 1HMIS 33PVC CLEAR HEAVY BODIED CEMENT 1/26/2012 1HMIS 33PVC CLEAR MEDIUM BODIED CEMENT 1/1/2010 1HMIS 33PVC GRAY MEDIUM BODIED CEMENT 1/26/2012 1HMIS 33GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *OATEY PVC RAIN R SHINE BLUE CEMENT 5/20/2005 1HMIS 33 *PURPLE PRIMER 1/26/2012 1HMIS 33 *PVC GRAY SCH. 80 HEAVY BODIED CEMENT 1/26/2012 1HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 342

Page 343: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

ACETYLENE 6/7/1996 0NFPA 40CRAZY CLEAN 1/3/2012 0NFPA 11OATEY PVC HVY DTY CLR/GRAY CEMENT LO VOC 2/8/2010 0NFPA 31OATEY PVC REGULAR CLEAR CEMENT 5/20/2005 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41PROPANE 11/10/2005 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02NICKEL METAL HYDRIDE BATTERY 7/22/2005 1NFPA 02FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12OATEY CLEAR CLEANER 5/20/2005 3NFPA 12FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22WD-40 AEROSOL 12/1/2004 0NFPA 2214D THREAD SEALANT WITH PTFE 8/11/2010 0NFPA 32AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCQUIC PRIMER N 7649 4/26/2006 0NFPA 32LOCTITE 7387 ACTIVATOR DEPEND 3/13/2009 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32NOMACO ADHESIVE 3/1/2007 0NFPA 32ROHPER 1-GL 2PK V7400 ALMOND 4/19/2011 0NFPA 32ROHPER 1-GL 2PK V7400 MACHINE TOOL GRAY 4/19/2011 0NFPA 32SUPER YELLOW WEATHERSTRIP ADHESIVE 6/12/2006 0NFPA 32WHITE LITHIUM GREASE 11/4/2010 0NFPA 32HETRON 922 4/26/1996 1NFPA 32OATEY ALL PURPOSE CEMENT 11/11/2008 1NFPA 32OATEY PVC RAIN-R-SHINE BLUE CEMENT 10/1/2009 1NFPA 32PARABOND P-8 CLEAR LOW VOC PIPE CEMENT 2/1/2010 1NFPA 32WELD-ON 702, 704, 705, 707, 710,... 5/1/2002 1NFPA 32AEROLEX PLUS AEROSOL 7/25/2008 0NFPA 42ALL PURPOSE SPRAY ADHESIVE #2880 6/23/2003 0NFPA 42CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42DOW CORNING 321 DRY FILM LUBR (AEROSOL) 11/3/1995 0NFPA 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 343

Page 344: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SP-400 AEROSOL 9/25/1997 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42EXPANDING FOAM SEALANT 1/7/2004 1NFPA 42OATEY LO-VOC PURPLE PRIMER/CLEANER 12/11/2008 1NFPA 32 *WELDFAST CL-200 PART "A" 1/21/2003 2NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CORVE8301 5/8/1996 NNFPA NNLEAK LOCK 3/15/2000 0not given 31SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BUTANE-LIQUIFIED PETROLEUM GAS 7/27/1994 0not given 41NU-CLEAR THREAD CUTTING OIL 9/6/2011 0not given 11 *BAN-AIRE 11/5/1997 Nnot given NNDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 470-300 EPOXY VINYL ESTER RESIN 3/18/1996 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNHAMMER-CAPSULE ADHESIVE ANCHOR CAPSULE 5/18/2010 Nnot given NNIPEX CONDUIT CEMENT 6/30/2003 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

LPS ZERO TRI SUPER CLEANER/DEGREASER 1/31/2003 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41008-ZINC GALVANIZING (AEROSOL) 8/2/1992 0HMIS 41 *LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02DUSTALL 3/1/2008 1HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22PRIMER N 7649 25GM, 21347 1/3/2005 0HMIS 322880 GENERAL SPRAY ADHESIVE 5/10/1999 0HMIS 42CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 344

Page 345: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PRIMER N 7649 25GM, 21347 9/27/2004 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43ACETYLENE 6/7/1996 0NFPA 40CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41PROPANE 11/10/2005 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *WD-40 AEROSOL 12/1/2004 0NFPA 22WHITE LITHIUM GREASE 11/4/2010 0NFPA 32AEROLEX PLUS AEROSOL 7/25/2008 0NFPA 42ALL PURPOSE SPRAY ADHESIVE #2880 6/23/2003 0NFPA 42CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42DOW CORNING 321 DRY FILM LUBR (AEROSOL) 11/3/1995 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42SP-400 AEROSOL 9/25/1997 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BUTANE-LIQUIFIED PETROLEUM GAS 7/27/1994 0not given 41

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 345

Page 346: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

GREEN QUEST 200 1/1/2000 0HMIS 00KILFROST AIRTOOL LUBRICANT 8/12/2009 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00SW SPACKLING PASTE C-50 11/11/1997 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00COSMOLUBRIC HF-130 10/16/2003 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10XL-300 10/15/1993 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0CARTRIDGES FOR POWDER DEVICES 1/1/2011 2HMIS 00 *222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01AMMONIA 12/4/1995 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CARDABLE FIBER,CMPLX REINFMNTS,CRATEC,.. 9/23/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01FBS-1 ROCKWOOL INSULATION 9/1/2005 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01LENOX STERLING LEAD-FREE SOLDER 10/1/2007 0HMIS 01MILLED FIBER 9/23/1998 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01THOROGARD 3/17/1999 0HMIS 01WATER SOLUBLE DEODORIZER 11/1/1993 0HMIS 01INDICATING DRIERITE 1/3/2000 1HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01#274 MOLY E.P. SYNTHETIC PLUS GREASE #0 12/12/2008 0HMIS 11#322 BLACK BEAUTY OPEN GEAR LUBE 100 ARC 4/30/2004 0HMIS 11AIR TOOL OIL, SL2531-ST2533 8/20/2004 0HMIS 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 346

Page 347: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ALTRA R & O 100 8/25/1997 0HMIS 11BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11C-5A ANTISEIZE 7/23/1997 0HMIS 11C5-A COPPER ANTI-SEIZE STICK 10/24/2003 0HMIS 11C5-A COPPER BASED ANTI-SEIZE LUBRICANT 1/7/2004 0HMIS 11CHEVRON ULTI-PLEX SYNTHETIC GREASE EP 11/4/2005 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11FIXMASTER METAL MAGIC STEEL EPOXY 98853 9/20/2005 0HMIS 11LOCTITE 598 BLK HI PERFORM RTV GSKT MRKR 4/15/2004 0HMIS 11LUBRIPLATE CHAIN & CABLE FLUID HEAVY 9/8/2009 0HMIS 11NICKEL GRADE ANTI-SEIZE 77164 1/6/2005 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11OMNITEMP 1 & 2 8/30/1999 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11QUINTOLUBRIC 822-300 3/3/2006 0HMIS 11QUINTOLUBRIC 888-68 9/3/2010 0HMIS 11RTV SILICONE OXIME FORMULA RED 100% 2/1/1998 0HMIS 11SUPERFLEX BLUE RTV SILICONE ADH 30533 6/10/2003 0HMIS 11SURTAC 2000/HD/RD/XD/AEROSOL BASE 1/1/2000 0HMIS 11TOPCOAT FLASHING GRADE 1/4/1999 0HMIS 11VIPERLUBE HIGH PERFORM SYN GREASE 6/25/2003 0HMIS 11XT POLYMER 7/26/2010 0HMIS 11248 MED STRENGTH THREADLOCKER STICK 10/29/2004 1HMIS 11268 THREADLOCKER STICK, 37686 10/29/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11LOCTITE 220 THREADLOCKER 10/13/2004 1HMIS 11LOCTITE QUICKSTIX 248 THREADLOCK MED 11/21/2007 1HMIS 11LOW VOLATILE BLACK SILICONE 8/7/2002 1HMIS 11MED STRENGTH THREADLOCKER BLUE GEL 10GR 6/21/2010 1HMIS 11POWERS AC100 + GOLD ANCHORING ADHESIVE 3/17/2010 1HMIS 11SILVER GRADE ANTI-SEIZE LUBRICANT 76764 6/5/2006 1HMIS 11SUPER BLUE SILICONE LOW VOLATILE 8/7/2002 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CRYSTAL CLEAN 142 + MINERAL SPIRITS 2/14/2008 0HMIS 21

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 347

Page 348: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EXXSOL D110 FLUID 5/12/2010 0HMIS 21GASOILA SOFT SET 5/18/1998 0HMIS 21LPS 3 HEAVY-DUTY RUST INHIBITOR 8/21/1996 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21XO-RUST ANTI-RUST ENAMEL 7/10/2012 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LPS ZERO TRI SUPER CLEANER/DEGREASER 1/31/2003 0HMIS 31MID-WEST #14-1271A BLACK ADHESIVE 1/12/2000 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31P-6 PVC CEMENT 7/8/2002 0HMIS 31PLIOBOND 30 11/5/1996 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31BATTERY TERMINAL 278 7/23/2001 0HMIS 41LUBRIPLATE CHAIN & CABLE FLUID 1/21/2010 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41SUVA 124 10/20/1995 1HMIS N1COATING 368 KDC-E-162 9/24/1998 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *ICI 3000 MORTAR 6/5/1998 0HMIS 01 *K-20, K-22 HS, K-23, K-24 HS, K-25 12/1/1995 0HMIS 01 *LENOX ROSIN CORE LEAD FREE SOLDER 10/1/2007 0HMIS 01 *MASTERFLOW 648CP PLUS GROUT PTC 3/16/2012 0HMIS 01 *PERMATEX #35 PRUSSIAN BLUE 9/28/2010 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *LOCTITE 680 RETAINING COMPOUND SLIP FIT 8/5/2006 1HMIS 11 *008-ZINC GALVANIZING (AEROSOL) 8/2/1992 0HMIS 41 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02LECTRA CLEAN HEAVY DUTY ELEC PARTS DGRSR 12/31/2008 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02MOLDEX CONCENTRATE 3/1/2006 0HMIS 02PELADOW PREMIER SNOW AND ICE MELTER 6/8/2015 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SILICON CONSTRUCTION SEALANT SCS1001 11/23/2005 0HMIS 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 348

Page 349: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SVENSKA SILICA (ALL GRADES) 6/1/1998 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02BOSS 310 GEN PURPOSE IND SILICONE SLNT 9/6/2006 0HMIS 12KLEAN STRIP ADHESIVE REMOVER 5/17/2011 0HMIS 12LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE FM FAST GRT 21.4LB PT A 5/12/2009 0HMIS 12MASTERFLOW 648CP PLUS GROUT PTA 5/31/2011 0HMIS 12SUPERFLEX BLU RTV SILICONE ADHES SEALANT 2/5/1999 0HMIS 12272 THREADLOCKER HIGH STRENGTH 4/16/2007 1HMIS 12GASKET ELIMINATOR 518 SEALANT 1/26/2006 1HMIS 12LOCTITE 290 TREADLOCKER WICKING GRADE 1/25/2006 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12LOCTITE 603 RETAINING CMPD PRESS FIT 2/3/2006 1HMIS 12LOCTITE 609 RETAINING CMPD PRESS F 1/25/2006 1HMIS 12LOCTITE THREADLOCKER 2760 HIGH STRENGTH 10/13/2000 1HMIS 12PB PENETRATING CATALYST 10/15/2010 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22SW WOOD CLSC POLY VARN A67V1 HI GLS CLR 7/9/1999 0HMIS 22454 PRISM SURFACE INSENSITIVE IA (45404) 11/25/2003 1HMIS 22DUSTALL 3/1/2008 1HMIS 22LOCTITE 330 DEPEND NO-MIX 2/6/2009 1HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32LOCTITE THREAD SEALANT WITH PTFE 30561 1/25/2006 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32PRIMER N 7649 25GM, 21347 1/3/2005 0HMIS 32TARSET R THINNER, T-13 12/1/1988 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 322880 GENERAL SPRAY ADHESIVE 5/10/1999 0HMIS 42CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 349

Page 350: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42PRIMER N 7649 25GM, 21347 9/27/2004 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42WELDERS BLACK MAGIC 5/12/2006 1HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *FLEXANE FAST CURE CURING AGENT 1/8/2003 0HMIS 12 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *SUPERFLEX RED HI TEMP RTV SILICONE 30564 10/11/2004 0HMIS 12 *660 QUICK METAL RETAINING COMPOUND 2/3/2006 1HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *ITW EPCON CERAMIC 6 RESIN 1/14/1999 1HMIS 12 *LOCTITE 222 THREADLOCKER LOW STRENGTH 1/25/2006 1HMIS 12 *LOCTITE 262 THREADLOCKER HI STRENGTH 1/25/2006 1HMIS 12 *PLASTIC STEEL PUTTY (A) RESIN 12/8/1998 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *OATEY PURPLE PRIMER CLEANER NSF LISTED 5/20/2005 1HMIS 32 *MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *TUFF GUY ACTION MARKER HD BLACK 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD BLUE 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD RED 8/21/2007 1HMIS 42 *TUFF GUY ACTION MARKER HD WHITE 8/21/2007 1HMIS 42 *MASTERFLOW 928 GROUT 1/31/1999 0HMIS 03LN-604 LATEX PROJECT & FOAM ADHESIVE 6/21/2010 0HMIS 13LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13LOCTITE FM FAST GRT 21.4LB PT B 5/5/2009 0HMIS 13MASTERFLOW 648CP PLUS GROUT PTB 2/23/2012 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13CLEAR CLEANER 11/1/2005 1HMIS 33CLEAR PRIMER CLEANER 1/1/1999 1HMIS 33HOMER 828 PVC SOLVENT CEMENT 8/15/2007 1HMIS 33PVC CLEAR HEAVY BODIED CEMENT 1/26/2012 1HMIS 33PVC CLEAR MEDIUM BODIED CEMENT 1/1/2010 1HMIS 33

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 350

Page 351: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PVC GRAY MEDIUM BODIED CEMENT 1/26/2012 1HMIS 33GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43EPOXY WELDKIT PART "B" 2/4/2003 0HMIS 13 *OATEY #5 PASTE FLUX 5/1/2009 0HMIS 13 *FLEXANE FAST CURE RESIN 1/8/2003 1HMIS 13 *ITW EPCON CERAMIC 6 HARDENER 11/30/2000 1HMIS 13 *PUTTY HARDENER 0200 12/4/1998 1HMIS 13 *WEAR GUARD HIGH LOAD RESIN EPOXY 10/10/2006 1HMIS 13 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *OATEY PVC RAIN R SHINE BLUE CEMENT 5/20/2005 1HMIS 33 *PURPLE PRIMER 1/26/2012 1HMIS 33 *PVC GRAY SCH. 80 HEAVY BODIED CEMENT 1/26/2012 1HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NN965AP-G, BUILD UP AP-G, TTX-1 AP-G 3/20/2002 0NFPA 10BUILD-UP LH, SELF-HARDENING, MULTI,... 5/25/1999 0NFPA 10CHEVRON MOLY GREASE EP 11/24/2009 0NFPA 10CHEVRON OPEN GEAR GREASE 10/25/2010 0NFPA 10COMPOSITE WIRE-100,101,103,117,121,... 11/28/2001 0NFPA 10FALK LONG TERM GREASE 02250 10/1/2001 0NFPA 10MOBIL DTE 13M 4/25/2003 0NFPA 10MOBIL VELOCITE OIL NO. 6 2/7/2008 0NFPA 10MOBILGREASE XHP 222 7/27/2005 0NFPA 10MOBILITH SHC 100 GREASE 3/25/2009 0NFPA 10MOBILITH SHC 220 1/1/2011 0NFPA 10RONEX MP 6/20/2008 0NFPA 10SHELL ALVANIA GREASE EP(LF) 2 6/24/2009 0NFPA 10STOODY 19, 21, 31, 33, 35, 2124,STOODITE 11/5/1997 0NFPA 10STOODY 35 COATED ELECTRODES 3/11/2008 0NFPA 10MINERAL SPIRITS 8/1/1996 0NFPA 20ODORLESS MINERAL SPIRITS 4/7/2005 0NFPA 20ACETYLENE 6/7/1996 0NFPA 40CRONACUT EAGLE 1100 8/1/1996 0NFPA 00 *COMPOSITE WIRE-TRACKWEAR,NICROMANG,110,. 7/9/2003 0NFPA 10 *UNIVOLT N 61 B 6/21/2003 0NFPA 10 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 351

Page 352: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 013M SCOTCH-BRITE GEN PURP PAD 7447, 7467 11/19/2010 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01ARCAIR AIR CARBON ARC ELECTRODES 10/1/1997 0NFPA 01BRAZING ALLOYS SILVER 4/1/1990 0NFPA 01CHICO A SEALING COMPOUND 5/28/2008 0NFPA 01CLIMAX 900 VALVE LUBRICANT 1/8/2007 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DV/-38/-AH/-P GREENAL-83MP/85 8/29/1997 0NFPA 01EAGLE-FLUX XL 1/1/2003 0NFPA 01ECOSAFE FR-46 11/4/1998 0NFPA 01FLEETWELD 180 ELECTRODES AWS E6011 5/10/2001 0NFPA 01FLEETWELD 35LS ELECTRODE 12/1/2001 0NFPA 01FLEETWELD 5P+ AWS E6010 2/15/2011 0NFPA 01GRINDING AND CUTTING WHEELS, RESINOID 12/1/2009 0NFPA 01HOUGHTO-SAFE 520 10/10/1995 0NFPA 01INNERSHIELD NR-232 2/15/2007 0NFPA 01INNERSHIELD NS-3M ALL SIZES 3/7/2008 0NFPA 01JETWELD 3, AWS E7024 3/22/1999 0NFPA 01KRYTOX GPL-20X & 50X FLUORINATED GREASE 5/5/1995 0NFPA 01PARKER O-LUBE 1/1/1999 0NFPA 01PSI-803 WHITE - MS SLNT 1/14/2009 0NFPA 01REFRAX 20-COMPACTED AND CAST 8/31/1992 0NFPA 01SCOTCH-BRITE SURFACE CONDITIONING PROD 6/12/2006 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SURFACE CONDITIONING ABRASIVE 5/24/2007 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01TOPCOAT MEMBRANE 1060-1 6/1/2003 0NFPA 01CONTACT CLEANER 2000 5/21/1996 1NFPA 01150 HYDRAULIC OIL 3/26/2010 0NFPA 115920 COPPER HI PERFORM RTV SILICONE 12/4/2008 0NFPA 11CHEVRON HANDY OIL ISO 15 4/2/1999 0NFPA 11CHEVRON RANDO HD HYDROLIC OIL 5/29/2008 0NFPA 11CHEVRON SRI GREASE 2/17/1999 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 352

Page 353: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

CHEVRON ULTI-PLEX GREASE EP 12/10/1997 0NFPA 11COOL TOOL 6/17/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11DOW CORNING 55 O-RING LUBRICANT 10/21/2003 0NFPA 11DOW MOLYKOTE BR-2 PLUS GREASE 4/29/2009 0NFPA 11ECOSAFE FLUSHING FLUID (OIL BASED-46) 11/24/1999 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11ENVIRONMENTAL MASTER MECHANIC AEROSOL 2/14/1997 0NFPA 11HIGH TEMP RED RTV SILICONE 9/8/2008 0NFPA 11LESCO GRANULAR FERTILIZER 5/27/1998 0NFPA 11M03 MACHINE GLAZE 11/2/1998 0NFPA 11NALCLEAR 7182 FLOCCULANT 2/17/1997 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11PURE WHITE - PIPE THREAD SILICONE GASKET 6/22/2000 0NFPA 11SILICONE + PREM.100% SILICONE SEALNT-WHT 7/2/1997 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11UNITRAC HYDRAULIC FLUID 1/5 GA 1/14/2002 0NFPA 11VAL PLEX EP GREASE 2/10/1995 0NFPA 11WELD KLEEN 350 1/1/2003 0NFPA 11561 PIPE THREAD SLNT 19GR STK 4/7/2004 1NFPA 11567 THREAD SEALANT PST WITH PTFE 56747 1/25/2006 1NFPA 11BELZONA 2311 (SR ELASTOMER) SOLIDIFIER 6/27/1996 1NFPA 11LOCTITE 569 THREAD SEALANT HI STRGTH HYD 1/22/1996 1NFPA 11PERMANENT THREADLOCKER 262 1/27/1999 1NFPA 11PST PIPE SLNT W/TFLN567THRED SLNT HITEMP 1/27/1999 1NFPA 11BELZONA 9111 (CLEANER/DEGREASER) 10/21/1997 0NFPA 21CHEVRON OPEN GEAR LUBRICANT GRADE 250 NC 10/20/1994 0NFPA 21CRC 2-26 10/30/1995 0NFPA 21CRC POWER LUBE MP LUBE BULK 6/14/2006 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21KLEENAPART (N&I) 1563 3/13/1998 0NFPA 21LIQUID WRENCH IND CHAIN & WIRE ROPE LUB 6/3/2008 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21ODC-FREE CLEANER & DEGREASER 2/17/1999 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21OATEY PVC HVY DTY CLR/GRAY CEMENT LO VOC 2/8/2010 0NFPA 31

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 353

Page 354: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

OATEY PVC REGULAR CLEAR CEMENT 5/20/2005 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PROPANE 11/10/2005 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 10/1/1997 3NFPA 41KROIL 6/7/2009 NNFPA N1ALUM OXIDE VITRIFIED PRO SEEDED GEL 1/24/2007 0NFPA 01 *COATED ABRASIVE PRODUCTS FLAPWHEEL DISCS 1/1/2007 0NFPA 01 *POTASH 12/31/2006 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *CABLE CLEAN DEGREASER 9/22/2011 0NFPA 02DENSE SODA ASH 12/10/1995 0NFPA 02E71T-1 WELDING WIRE 1/1/2008 0NFPA 02HI-PACT ELECTRODE 4/24/2009 0NFPA 02LINCORE 50 FLUX CORED ELECTRODE 11/1/2006 0NFPA 02QUICK CLEAN 2/28/1997 0NFPA 02SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02X-ERGON 100XL 1/8 4/11/1991 0NFPA 02BELZONA 9411 8/1/1996 1NFPA 02BELZONA 9411 RELEASE AGENT 2/18/1993 1NFPA 02BLUE SHOWER II 4/29/1998 1NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02MINRO-TEK PAK G/45G, TEK RAM GC,... 5/18/1996 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02NICKEL METAL HYDRIDE BATTERY 7/22/2005 1NFPA 02BELZONA 1341 (SUPERMETALGLIDE)SOLIDIFIER 5/11/1998 0NFPA 12EPOXY CEMENT KIT 2/3/1999 0NFPA 12FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12PENDULUM WDG HERBICIDE 6/2/1997 0NFPA 12SC 2000 CEMENT 2/3/1999 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12BELZONA 1111 (SUPER METAL) BASE 8/2/2006 1NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 354

Page 355: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BELZONA 1211 (E-METAL) BASE 10/21/1997 1NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 1221(SUPER E-METAL) BASE 3/7/1998 1NFPA 12BELZONA 2100 (D&A ELASTOMER) BASE 7/26/2006 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12BELZONA 2131(D&A FLD ELASTOMR)SOLIDIFR 5/17/1996 1NFPA 12BELZONA 2211(MP HI-BLD ELASTMR)SOLIDIFR 1/17/2005 1NFPA 12BELZONA 2211(MP HI-BUILD ELASTOMER)BASE 1/17/2005 1NFPA 12BELZONA 2311 (SR ELASTOMER) BASE 10/3/1994 1NFPA 12BELZONA 2911 (ELASTOMER QD CONDITIONER) 10/2/2006 1NFPA 12FAST CURE EPOXY, 21425 10/21/2004 1NFPA 12HIGH STRENGTH THREADLOCKER RED GEL 6/21/2010 1NFPA 12LOCTITE FORM-A-THREAD 5/16/2007 1NFPA 12THREAD SEALANT WITH PTFE #30534 11/12/2004 1NFPA 12OATEY CLEAR CLEANER 5/20/2005 3NFPA 123M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22WD-40 AEROSOL 12/1/2004 0NFPA 22WD-40 BULK LIQUID 12/1/2004 0NFPA 22ACETIC ACID, GLACIAL 10/15/1994 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 2214D THREAD SEALANT WITH PTFE 8/11/2010 0NFPA 32AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCQUIC PRIMER N 7649 4/26/2006 0NFPA 32LOCTITE 7387 ACTIVATOR DEPEND 3/13/2009 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32NOMACO ADHESIVE 3/1/2007 0NFPA 32ROHPER 1-GL 2PK V7400 ALMOND 4/19/2011 0NFPA 32ROHPER 1-GL 2PK V7400 MACHINE TOOL GRAY 4/19/2011 0NFPA 32SUPER YELLOW WEATHERSTRIP ADHESIVE 6/12/2006 0NFPA 32WHITE LITHIUM GREASE 11/4/2010 0NFPA 32HETRON 922 4/26/1996 1NFPA 32OATEY ALL PURPOSE CEMENT 11/11/2008 1NFPA 32OATEY PVC RAIN-R-SHINE BLUE CEMENT 10/1/2009 1NFPA 32PARABOND P-8 CLEAR LOW VOC PIPE CEMENT 2/1/2010 1NFPA 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 355

Page 356: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32WELD-ON 702, 704, 705, 707, 710,... 5/1/2002 1NFPA 32AEROLEX PLUS AEROSOL 7/25/2008 0NFPA 42ALL PURPOSE SPRAY ADHESIVE #2880 6/23/2003 0NFPA 42CRC DRY GRAPHITE LUBE 11/4/2003 0NFPA 42DOW CORNING 321 DRY FILM LUBR (AEROSOL) 11/3/1995 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SP-400 AEROSOL 9/25/1997 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42EXPANDING FOAM SEALANT 1/7/2004 1NFPA 42HI-IMPACT ELECTRODE 9/5/2001 0NFPA 02 *STAINWELD MANUAL ELECTRODES 4/1/1999 0NFPA 02 *OATEY LO-VOC PURPLE PRIMER/CLEANER 12/11/2008 1NFPA 32 *WELDFAST CL-200 PART "A" 1/21/2003 2NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *WYNN'S MACHINE CLEANER 11/7/1997 0NFPA 03POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03BELZONA 1141 CONDUCTIVE METAL BASE SOL 5/8/2009 0NFPA 13BELZONA 1111 (SUPER METAL) SOLIDIFIER 2/1/2007 1NFPA 13BELZONA 1211 (E-METAL) SOLIDIFIER 10/21/1997 1NFPA 13BELZONA1341(SUPERMETALGLIDE)BSE GRAY&BLU 5/11/1998 1NFPA 13LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13HI-POINT 90 4/19/1996 2NFPA 23KC850 TUNGSTEN CARBID 8/31/2009 0NFPA 03 *CORVE8301 5/8/1996 NNFPA NNDURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00EXCALIBUR 7018 8/6/2001 0not given 01MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01ALUMINUM CHLORIDE 10/29/2001 1not given 01ANTHRACITIC CATHODE BLOCKS 12/9/1994 1not given 01HD LITH 2 GREASE 6/3/1992 0not given 11LEAK LOCK 3/15/2000 0not given 31SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31JETWELD LH-110M MR COVERED ELECTRODE 7/28/2003 0not given 01 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 356

Page 357: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NU-CLEAR THREAD CUTTING OIL 9/6/2011 0not given 11 *BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *L-56, ALL SIZES 9/15/2007 0not given 02 *BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1N30% MAGNESIUM CHLORIDE BRINE UNINHIBITED 1/1/2009 Nnot given NNAA-300 ACIDSORB 7/10/2000 Nnot given NNABRASIVE FLAP DISC - GLASS FIBER BACKED 5/14/2004 Nnot given NNABRASIVE FLAP DISC - POLYMER BACKED 1/1/2002 Nnot given NNACTIVATED ALUMINA 5/26/2004 Nnot given NNACTIVATED ALUMINA 2/28/2005 Nnot given NNACTIVATED ALUMINAS 3/28/2001 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAEROSTYLE PYROJACKET 6/1/2011 Nnot given NNAHEW1512WHO W-15,WALMART LATEX CAULK,WHT 10/4/1999 Nnot given NNALL ADAMAS CEMENTED TUNGSTEN CARBIDE GR. 1/1/1985 Nnot given NNALL EAGLE CEMENTED CARBIDE 9/24/2003 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBHA NEUTRALITE 11/29/2005 Nnot given NNBONDED MOLDED ABRASIVE PRODUCTS 3/1/2007 Nnot given NNBWK-98 NON-SELECT WEED KILLR&SOIL STRLNT 1/4/1988 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON AND ALLOY STEELS 7/1/1989 Nnot given NNCARBON BLOCKS-BENEMEC S 3/31/2008 Nnot given NNCATCH-ALL BRAND FILTER-DRIER CORES 7/15/2002 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLIMAX 400A 7/15/2008 Nnot given NNDAVISON BLU INDICATNG GEL GR.13,42,43,44 1/1/1990 Nnot given NNDERAKANE 411-45 VINYL ESTER RESIN 6/18/1991 Nnot given NNDERAKANE 470-300 EPOXY VINYL ESTER RESIN 3/18/1996 Nnot given NNDOWFROST HD HEAT TRANSFER FLUID, DYED 8/3/2004 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 357

Page 358: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNDURALINE PRES-ON ABRASIVES (ALL KINDS) 9/3/2002 Nnot given NNELI-FLEX RUBBER REPAIR 1/1/2002 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFLAP DISC W/COTTON ABRASIVE CLOTH 4/1/2010 Nnot given NNGALVANIZED SHEETS,HOT&COLD ROLD CARB... 4/1/1995 Nnot given NNGLASTIC GRADES: TSF SHEET & SCUFF LINER 10/1/1996 Nnot given NNGLYPTEX ENAMEL 4124 BLACK 2/21/1991 Nnot given NNGREENCAST-94/-97,CASTABLE MIX 250/275,.. 4/6/1995 Nnot given NNGREENKLEEN-60 PLUS 3/10/1999 Nnot given NNHAMMER-CAPSULE ADHESIVE ANCHOR CAPSULE 5/18/2010 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHEAVY BODIED KLEAN-STRIP 6/14/1989 Nnot given NNHI ALUMINA BRCK(UNBURND,PHOSPHATE-BOND) 1/5/1999 Nnot given NNHI ALUMINA MORTARS(WET,PHOSPHATE-BONDED) 10/7/1998 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNHI-HIDE S/G INT. LTX,107 EXTRA DEEP BASE 7/15/1998 Nnot given NNIPEX CONDUIT CEMENT 6/30/2003 Nnot given NNITW-RAMSET EPCON SYSTEM RESIN 4/22/1991 Nnot given NNLGHP 2 HI PERFORM POLYUREA BRNG GREASE 12/2/2003 Nnot given NNLITHIUM BATTERY 6/23/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNLITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNLITHIUM-ION BATTERY CLOSED CYLINDER 12/15/2008 Nnot given NNLOCTITE FREEZE & RELEASE 12/20/2006 Nnot given NNMASTERFLOW 648CP PL GRT UNT 0.43CF 12/3/2009 Nnot given NNMICRON MOLY HTC SAE 30 ISO 100, 112 6/24/1996 Nnot given NNNORZON ALUMNIA/ZIRCONIA RESN GRINDNG WHL 7/19/1999 Nnot given NNNOVACON 85 6/1/1998 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NNOCLANSORB 3/15/1994 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 358

Page 359: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

POLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NNPORTLAND CEMENT SOUTHDOWN TYPE I/II 5/1/2000 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNQUEST FREEZE DEFENSE 1/1/2000 Nnot given NNR145 ABRASIVE CLOTH 5/10/2004 Nnot given NNREFRACTORY BRICKS OR SHAPES 99-AD 7/27/1995 Nnot given NNSAKRETE BLACKTOP PATCH 6/1/1991 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 3/1/1995 Nnot given NNSPOTCHECK PENETRANT SKL-WP 4/25/1994 Nnot given NNTABULAR ALUMINA 3/24/2011 Nnot given NNTILITE 1014 1/7/1996 Nnot given NNTITANIUM NITRIDE COATING 1/1/1991 Nnot given NNUNI-PAINT PX-21 & PX-20 MARKER ALLCOLORS 2/1/2007 Nnot given NNVASCO SPECIALTY STEELS 4/1/1990 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNZOOM SPOUT OILER 4/10/2007 Nnot given NNE6011 WELDING ELECTRODE GROUP A 7/14/2005 Nnot given NN *E7018 WELDING ELECTRODE GROUP B 7/14/2005 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *ITW-RAMSET EPCON SYSTEM HARDENER 4/9/1991 Nnot given NN *PALCO 715 9/14/2000 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *S/S / CAST IRON AWS WELDING ELECTRODES 7/1/1999 Nnot given NN *SAKRETE HIGH STRENGTH CONCRETE MIX 9/30/2005 Nnot given NN *STAINLESS STEEL ARC WELD ELECTRODE 7/16/2007 Nnot given NN *STUD EXTRACTOR (300A,500,500 TIG) 1/1/1985 Nnot given NN *SUPCO 88 OIL ADDITIVE 8/18/1998 Nnot given NN *UNDER INSULATION COATING 1027 UIC BLACK 7/1/2003 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Organic Peroxide

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 359

Page 360: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Organic Peroxide

HI-POINT 90 4/19/1996 2NFPA 23

OXYGEN 10/1/1997 0NFPA 00THE ATMOSPHERE 3/9/1996 0NFPA 00NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02NICKEL METAL HYDRIDE BATTERY 7/22/2005 1NFPA 02EXPANDING FOAM SEALANT 1/7/2004 1NFPA 42HI-POINT 90 4/19/1996 2NFPA 23

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01C5-A COPPER ANTI-SEIZE STICK 10/24/2003 0HMIS 11LOCTITE 598 BLK HI PERFORM RTV GSKT MRKR 4/15/2004 0HMIS 11NICKEL GRADE ANTI-SEIZE 77164 1/6/2005 0HMIS 11248 MED STRENGTH THREADLOCKER STICK 10/29/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11LOCTITE QUICKSTIX 248 THREADLOCK MED 11/21/2007 1HMIS 11POWERS AC100 + GOLD ANCHORING ADHESIVE 3/17/2010 1HMIS 11XO-RUST ANTI-RUST ENAMEL 7/10/2012 0HMIS 21COATING 368 KDC-E-162 9/24/1998 0HMIS 01 *METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02MOLDEX CONCENTRATE 3/1/2006 0HMIS 02SILICON CONSTRUCTION SEALANT SCS1001 11/23/2005 0HMIS 02LOCTITE FM FAST GRT 21.4LB PT A 5/12/2009 0HMIS 12GASKET ELIMINATOR 518 SEALANT 1/26/2006 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12LOCTITE 330 DEPEND NO-MIX 2/6/2009 1HMIS 22PRIMER N 7649 25GM, 21347 1/3/2005 0HMIS 32CUTTING OIL AEROSOL 2/26/2001 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 360

Page 361: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW TOUGH COAT S00329 MACHINERY BLUE GRAY 8/17/1998 0HMIS 42KRYLON HIGH HEAT & RADIATOR PAINT,ALUM. 6/17/2003 1HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *OATEY PURPLE PRIMER CLEANER NSF LISTED 5/20/2005 1HMIS 32 *MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *LOCTITE FM FAST GRT 21.4LB PT B 5/5/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13PUTTY HARDENER 0200 12/4/1998 1HMIS 13 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *OATEY PVC RAIN R SHINE BLUE CEMENT 5/20/2005 1HMIS 33 *965AP-G, BUILD UP AP-G, TTX-1 AP-G 3/20/2002 0NFPA 10COMPOSITE WIRE-100,101,103,117,121,... 11/28/2001 0NFPA 10MINERAL SPIRITS 8/1/1996 0NFPA 20ODORLESS MINERAL SPIRITS 4/7/2005 0NFPA 20COMPOSITE WIRE-TRACKWEAR,NICROMANG,110,. 7/9/2003 0NFPA 10 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *JETWELD 3, AWS E7024 3/22/1999 0NFPA 01THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11561 PIPE THREAD SLNT 19GR STK 4/7/2004 1NFPA 11567 THREAD SEALANT PST WITH PTFE 56747 1/25/2006 1NFPA 11LOCTITE 569 THREAD SEALANT HI STRGTH HYD 1/22/1996 1NFPA 11PERMANENT THREADLOCKER 262 1/27/1999 1NFPA 11PST PIPE SLNT W/TFLN567THRED SLNT HITEMP 1/27/1999 1NFPA 11OATEY PVC HVY DTY CLR/GRAY CEMENT LO VOC 2/8/2010 0NFPA 31OATEY PVC REGULAR CLEAR CEMENT 5/20/2005 0NFPA 31PROPANE 11/10/2005 0NFPA 41FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12FAST CURE EPOXY, 21425 10/21/2004 1NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 361

Page 362: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

THREAD SEALANT WITH PTFE #30534 11/12/2004 1NFPA 12OATEY CLEAR CLEANER 5/20/2005 3NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LOCQUIC PRIMER N 7649 4/26/2006 0NFPA 32NOMACO ADHESIVE 3/1/2007 0NFPA 32HETRON 922 4/26/1996 1NFPA 32OATEY ALL PURPOSE CEMENT 11/11/2008 1NFPA 32OATEY PVC RAIN-R-SHINE BLUE CEMENT 10/1/2009 1NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42STAINWELD MANUAL ELECTRODES 4/1/1999 0NFPA 02 *OATEY LO-VOC PURPLE PRIMER/CLEANER 12/11/2008 1NFPA 32 *POWER SONIC LEAD BATTERIES 2/8/2012 2NFPA 03CORVE8301 5/8/1996 NNFPA NNEXCALIBUR 7018 8/6/2001 0not given 01JETWELD LH-110M MR COVERED ELECTRODE 7/28/2003 0not given 01 *L-56, ALL SIZES 9/15/2007 0not given 02 *ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUM.ALLOYS/ALUM.ALLOYS W/LEAD8975K SER. 3/1/1990 Nnot given NNER 71T-GS WELDING WIRE 3/1/2007 Nnot given NNOATEY MEDIUM CLEAR PVC CEMENT 10/16/1995 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNE6011 WELDING ELECTRODE GROUP A 7/14/2005 Nnot given NN *E7018 WELDING ELECTRODE GROUP B 7/14/2005 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *STAINLESS STEEL ARC WELD ELECTRODE 7/16/2007 Nnot given NN *

FBS-1 ROCKWOOL INSULATION 9/1/2005 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01WATER SOLUBLE DEODORIZER 11/1/1993 0HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 362

Page 363: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

C5-A COPPER ANTI-SEIZE STICK 10/24/2003 0HMIS 11LOCTITE 598 BLK HI PERFORM RTV GSKT MRKR 4/15/2004 0HMIS 11NICKEL GRADE ANTI-SEIZE 77164 1/6/2005 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11SUPERFLEX BLUE RTV SILICONE ADH 30533 6/10/2003 0HMIS 11248 MED STRENGTH THREADLOCKER STICK 10/29/2004 1HMIS 11268 THREADLOCKER STICK, 37686 10/29/2004 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11LOCTITE 220 THREADLOCKER 10/13/2004 1HMIS 11MED STRENGTH THREADLOCKER BLUE GEL 10GR 6/21/2010 1HMIS 11SHEET,PLATE,ROD,BAR,BLD,XTRUD&DRWN PRDTS 8/12/1996 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PLIOBOND 30 11/5/1996 0HMIS 31LOCTITE 680 RETAINING COMPOUND SLIP FIT 8/5/2006 1HMIS 11 *MOLDEX CONCENTRATE 3/1/2006 0HMIS 02LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12MASTERFLOW 648CP PLUS GROUT PTA 5/31/2011 0HMIS 12SUPERFLEX BLU RTV SILICONE ADHES SEALANT 2/5/1999 0HMIS 12272 THREADLOCKER HIGH STRENGTH 4/16/2007 1HMIS 12GASKET ELIMINATOR 518 SEALANT 1/26/2006 1HMIS 12LOCTITE 290 TREADLOCKER WICKING GRADE 1/25/2006 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12LOCTITE 603 RETAINING CMPD PRESS FIT 2/3/2006 1HMIS 12LOCTITE 609 RETAINING CMPD PRESS F 1/25/2006 1HMIS 12LOCTITE THREADLOCKER 2760 HIGH STRENGTH 10/13/2000 1HMIS 12454 PRISM SURFACE INSENSITIVE IA (45404) 11/25/2003 1HMIS 22LOCTITE 330 DEPEND NO-MIX 2/6/2009 1HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22LOCTITE THREAD SEALANT WITH PTFE 30561 1/25/2006 0HMIS 32PLIOBOND 20 ADHESIVE 6/8/2010 0HMIS 32GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42FLEXANE FAST CURE CURING AGENT 1/8/2003 0HMIS 12 *SUPERFLEX RED HI TEMP RTV SILICONE 30564 10/11/2004 0HMIS 12 *660 QUICK METAL RETAINING COMPOUND 2/3/2006 1HMIS 12 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 363

Page 364: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *ITW EPCON CERAMIC 6 RESIN 1/14/1999 1HMIS 12 *LOCTITE 222 THREADLOCKER LOW STRENGTH 1/25/2006 1HMIS 12 *LOCTITE 262 THREADLOCKER HI STRENGTH 1/25/2006 1HMIS 12 *PLASTIC STEEL PUTTY (A) RESIN 12/8/1998 1HMIS 12 *MASTERFLOW 648CP PLUS GROUT PTB 2/23/2012 0HMIS 13GOLDEN BELT DRESSING AEROSOL 10/26/1998 1HMIS 43EPOXY WELDKIT PART "B" 2/4/2003 0HMIS 13 *FLEXANE FAST CURE RESIN 1/8/2003 1HMIS 13 *ITW EPCON CERAMIC 6 HARDENER 11/30/2000 1HMIS 13 *PUTTY HARDENER 0200 12/4/1998 1HMIS 13 *WEAR GUARD HIGH LOAD RESIN EPOXY 10/10/2006 1HMIS 13 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *PALCO 450 3/20/2007 0NFPA 00BUILD-UP LH, SELF-HARDENING, MULTI,... 5/25/1999 0NFPA 10COMPOSITE WIRE-100,101,103,117,121,... 11/28/2001 0NFPA 10STOODY 19, 21, 31, 33, 35, 2124,STOODITE 11/5/1997 0NFPA 10STOODY 35 COATED ELECTRODES 3/11/2008 0NFPA 10CRONACUT EAGLE 1100 8/1/1996 0NFPA 00 *5920 COPPER HI PERFORM RTV SILICONE 12/4/2008 0NFPA 11SILICONE + PREM.100% SILICONE SEALNT-WHT 7/2/1997 0NFPA 11THERMAFLO CLEANING FLUID 4/12/2005 0NFPA 11561 PIPE THREAD SLNT 19GR STK 4/7/2004 1NFPA 11567 THREAD SEALANT PST WITH PTFE 56747 1/25/2006 1NFPA 11BEARING MOUNT/GRADE B 1/1/1993 1NFPA 11PERMANENT THREADLOCKER 262 1/27/1999 1NFPA 11PST PIPE SLNT W/TFLN567THRED SLNT HITEMP 1/27/1999 1NFPA 11COATED ABRASIVE PRODUCTS FLAPWHEEL DISCS 1/1/2007 0NFPA 01 *LINCORE 50 FLUX CORED ELECTRODE 11/1/2006 0NFPA 02SHIELD BRIGHT 316L FLUX CORED WLD WIRE 5/12/2008 0NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 1244 RESIN FLUX CORED SOLDER 9/17/2009 1NFPA 12BELZONA 1111 (SUPER METAL) BASE 8/2/2006 1NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 364

Page 365: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

BELZONA 1211 (E-METAL) BASE 10/21/1997 1NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2100 (D&A ELASTOMER) BASE 7/26/2006 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12BELZONA 2211(MP HI-BUILD ELASTOMER)BASE 1/17/2005 1NFPA 12BELZONA 2311 (SR ELASTOMER) BASE 10/3/1994 1NFPA 12BELZONA 2911 (ELASTOMER QD CONDITIONER) 10/2/2006 1NFPA 12HIGH STRENGTH THREADLOCKER RED GEL 6/21/2010 1NFPA 12THREAD SEALANT WITH PTFE #30534 11/12/2004 1NFPA 123M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32DOW CORNING 321 DRY FILM LUBR (AEROSOL) 11/3/1995 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42EXPANDING FOAM SEALANT 1/7/2004 1NFPA 42MUREX SOLID STAINLESS RODS AND WIRES 11/10/2006 0NFPA 02 *STAINWELD MANUAL ELECTRODES 4/1/1999 0NFPA 02 *WELDFAST CL-200 PART "A" 1/21/2003 2NFPA 32 *BELZONA 1141 CONDUCTIVE METAL BASE SOL 5/8/2009 0NFPA 13BELZONA 1111 (SUPER METAL) SOLIDIFIER 2/1/2007 1NFPA 13BELZONA1341(SUPERMETALGLIDE)BSE GRAY&BLU 5/11/1998 1NFPA 13KC850 TUNGSTEN CARBID 8/31/2009 0NFPA 03 *CRONAWELD EAGLE 3880 8/1/1996 0not given 00CRONAWELD EAGLE 3881 8/1/1996 0not given 00EXCALIBUR 7018 8/6/2001 0not given 01BLUE MAX MANUAL ELECTRODES, ALL 10/8/2001 0not given 02 *BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NADALOX OR METALITE CAP 6/24/1999 Nnot given NNALL ADAMAS CEMENTED TUNGSTEN CARBIDE GR. 1/1/1985 Nnot given NNALL EAGLE CEMENTED CARBIDE 9/24/2003 Nnot given NNBONDED MOLDED ABRASIVE PRODUCTS 3/1/2007 Nnot given NNHI-ALLOY 500 WELDING ELECTRODE 10/1/2004 Nnot given NNIPEX CONDUIT CEMENT 6/30/2003 Nnot given NNITW-RAMSET EPCON SYSTEM RESIN 4/22/1991 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 365

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Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

NORZON ALUMNIA/ZIRCONIA RESN GRINDNG WHL 7/19/1999 Nnot given NNPORTLAND CEMENT SOUTHDOWN TYPE I/II 5/1/2000 Nnot given NNSAKRETE BLACKTOP PATCH 6/1/1991 Nnot given NNVINYL SUEDE FLAT INT LTX 933-935,937,951 4/1/1996 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NNE6011 WELDING ELECTRODE GROUP A 7/14/2005 Nnot given NN *E7018 WELDING ELECTRODE GROUP B 7/14/2005 Nnot given NN *ITW-RAMSET EPCON SYSTEM HARDENER 4/9/1991 Nnot given NN *PALCO 700 5/1/1999 Nnot given NN *SAKRETE HIGH STRENGTH CONCRETE MIX 9/30/2005 Nnot given NN *STAINLESS STEEL ARC WELD ELECTRODE 7/16/2007 Nnot given NN *

C-5A ANTISEIZE 7/23/1997 0HMIS 11C5-A COPPER BASED ANTI-SEIZE LUBRICANT 1/7/2004 0HMIS 11TOPCOAT FLASHING GRADE 1/4/1999 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11XO-RUST ANTI-RUST ENAMEL 7/10/2012 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21P-6 PVC CEMENT 7/8/2002 0HMIS 31008-ZINC GALVANIZING (AEROSOL) 8/2/1992 0HMIS 41 *KLEAN STRIP ADHESIVE REMOVER 5/17/2011 0HMIS 12MASTERFLOW 648CP PLUS GROUT PTA 5/31/2011 0HMIS 12SUPERFLEX BLU RTV SILICONE ADHES SEALANT 2/5/1999 0HMIS 12PB PENETRATING CATALYST 10/15/2010 0HMIS 22FLEXANE FAST CURE CURING AGENT 1/8/2003 0HMIS 12 *OATEY PURPLE PRIMER CLEANER NSF LISTED 5/20/2005 1HMIS 32 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13ITW EPCON CERAMIC 6 HARDENER 11/30/2000 1HMIS 13 *PUTTY HARDENER 0200 12/4/1998 1HMIS 13 *WEAR GUARD HIGH LOAD RESIN EPOXY 10/10/2006 1HMIS 13 *OATEY PVC RAIN R SHINE BLUE CEMENT 5/20/2005 1HMIS 33 *MINERAL SPIRITS 8/1/1996 0NFPA 20

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 366

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Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ODORLESS MINERAL SPIRITS 4/7/2005 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *EAGLE-FLUX XL 1/1/2003 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 015920 COPPER HI PERFORM RTV SILICONE 12/4/2008 0NFPA 11OATEY PVC HVY DTY CLR/GRAY CEMENT LO VOC 2/8/2010 0NFPA 31OATEY PVC REGULAR CLEAR CEMENT 5/20/2005 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02NICKEL METAL HYDRIDE BATTERY 7/22/2005 1NFPA 02FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12BELZONA 2131(D&A FLD ELASTOMR)SOLIDIFR 5/17/1996 1NFPA 12BELZONA 2211(MP HI-BLD ELASTMR)SOLIDIFR 1/17/2005 1NFPA 12OATEY CLEAR CLEANER 5/20/2005 3NFPA 12LOCTITE 7387 ACTIVATOR DEPEND 3/13/2009 0NFPA 32OATEY ALL PURPOSE CEMENT 11/11/2008 1NFPA 32OATEY PVC RAIN-R-SHINE BLUE CEMENT 10/1/2009 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42OATEY LO-VOC PURPLE PRIMER/CLEANER 12/11/2008 1NFPA 32 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *KC850 TUNGSTEN CARBID 8/31/2009 0NFPA 03 *EXCALIBUR 7018 8/6/2001 0not given 01BELZONA 2111 (D&A HI-BUILD ELASTOMER) 9/15/1994 1not given 1NMASTERFLOW 648CP PL GRT UNT 0.43CF 12/3/2009 Nnot given NNPALCO 808 5/1/1999 Nnot given NN

ACETYLENE 6/7/1996 0NFPA 40ACETYLENE 10/1/1997 3NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

CARTRIDGES FOR POWDER DEVICES 1/1/2011 2HMIS 00 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 367

Page 368: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

LOCTITE 598 BLK HI PERFORM RTV GSKT MRKR 4/15/2004 0HMIS 11SUPERFLEX BLUE RTV SILICONE ADH 30533 6/10/2003 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SUPERFLEX BLU RTV SILICONE ADHES SEALANT 2/5/1999 0HMIS 12454 PRISM SURFACE INSENSITIVE IA (45404) 11/25/2003 1HMIS 22GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42SUPERFLEX RED HI TEMP RTV SILICONE 30564 10/11/2004 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *MAJIC BRILLIANT SILVER AEROSOL SPRAY 4/29/2004 0HMIS 42 *FLEXANE FAST CURE RESIN 1/8/2003 1HMIS 13 *CHICO A SEALING COMPOUND 5/28/2008 0NFPA 015920 COPPER HI PERFORM RTV SILICONE 12/4/2008 0NFPA 11HIGH TEMP RED RTV SILICONE 9/8/2008 0NFPA 11NALCLEAR 7182 FLOCCULANT 2/17/1997 0NFPA 11KROIL 6/7/2009 NNFPA N1EPOXY CEMENT KIT 2/3/1999 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 12BELZONA 1211 (E-METAL) BASE 10/21/1997 1NFPA 12BELZONA 1221 (SUPER E-METAL) SOLIDIFIER 3/7/1998 1NFPA 12BELZONA 2100 (D&A ELASTOMER) BASE 7/26/2006 1NFPA 12BELZONA 2131 ELASTOMER BASE 2/19/1992 1NFPA 12BELZONA 2211(MP HI-BUILD ELASTOMER)BASE 1/17/2005 1NFPA 12BELZONA 2311 (SR ELASTOMER) BASE 10/3/1994 1NFPA 12BELZONA 2911 (ELASTOMER QD CONDITIONER) 10/2/2006 1NFPA 12ACETIC ACID, GLACIAL 10/15/1994 1NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ACTIVATED ALUMINA 1/1/2011 1not given 01ALUMINUM CHLORIDE 10/29/2001 1not given 01DRY-O-LITE CHEMICAL DESICCANT 1/1/2011 Nnot given N1ACTIVATED ALUMINAS 3/28/2001 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNLITHIUM MANGANESE DIOXIDE BATTERIES 7/19/2010 Nnot given NNPOLYCARBONMONOFLUORIDE 1/7/2009 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 368

Page 369: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

PRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 3XXX SERIES 12/3/2009 Nnot given NNWROUGHT ALUMINUM PRODUCTS, 6XXX SERIES 12/1/2009 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 369

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Department: Mechanical Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 370

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Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNBAKELITE PREFORMS/POWDERS/PELLETS 7/1/1995 Nnot given NNBAKELITE PREFORMS/POWDERS/PELLETS 4/17/2000 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 371

Page 372: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 372

Page 373: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31DIAMOND SPRAY 7/13/2002 0not given 42CALIBRATION CHECK GAS 1/1/2006 Nnot given NNDIAMOND SPRAY 12/1/1994 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 373

Page 374: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31DIAMOND SPRAY 7/13/2002 0not given 42BAN-AIRE 11/5/1997 Nnot given NNDIAMOND SPRAY 12/1/1994 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 374

Page 375: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31DIAMOND SPRAY 7/13/2002 0not given 42DIAMOND SPRAY 12/1/1994 Nnot given NN

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00MASTERMET 2 5/12/2003 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01BUFFER SOLUTION PH 10.00 +/- 0.01 8/3/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01ZIRMET DISKS, METSPLICE BELTS 12/18/1998 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

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Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BUEHLER MIROMET SUSPENSION 5/20/2003 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 376

Page 377: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 377

Page 378: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31DIAMOND SPRAY 7/13/2002 0not given 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAKELITE PREFORMS/POWDERS/PELLETS 7/1/1995 Nnot given NNBAKELITE PREFORMS/POWDERS/PELLETS 4/17/2000 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDIAMOND SPRAY 12/1/1994 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHALOGEN SCRUBBER/TRAP 4/17/2000 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMETALLIC STRONTIUM/ALUMINUM ALLOY 8/1/1986 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTOTAL IONIC STRENGTH ADJUSTMNT BUFFER IV 9/28/1993 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 378

Page 379: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 379

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Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *BAKELITE PREFORMS/POWDERS/PELLETS 7/1/1995 Nnot given NNDIAMOND SPRAY 12/1/1994 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 380

Page 381: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNMETALLIC STRONTIUM/ALUMINUM ALLOY 8/1/1986 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 381

Page 382: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Metallurgical Lab

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 382

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Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 383

Page 384: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22CRAZY CLEAN 1/3/2012 0NFPA 11RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CALIBRATION CHECK GAS 1/1/2006 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 384

Page 385: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

SILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRAZY CLEAN 1/3/2012 0NFPA 11RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 385

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Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SODIUM BICARBONATE 11/12/2008 0HMIS 00NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31PRETOX 7000 5/24/2002 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 386

Page 387: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01BACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNEA-6052RS FLOCCULANT 9/29/2000 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 387

Page 388: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 388

Page 389: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42

ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *EA-6052RS FLOCCULANT 9/29/2000 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-4000 COATING LT GRAY 7/14/2005 1HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY 81252 R RESIN 12/9/2004 1HMIS 11ELASTOSPRAY 81302 R RESIN 5/9/2005 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 389

Page 390: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 390

Page 391: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Outside Contractor

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 391

Page 392: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *MOORE IRONCLAD Q/D IND. ENML 071, C/D071 3/28/1994 0HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *KRYLON INT/EXT PAINT, BANNER RED 2108 10/14/2003 0HMIS 42 *KRYLON OSHA COLORS SAFETY YELLOW 1813 12/2/2003 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 392

Page 393: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ACRI-FIL 896-WHITE 2/1/1995 Nnot given NNACRYLIC EGGSHELL 1033/1034/1035... 5/9/1995 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNK-FAC-19, FIRE DOOR COREBOARD, MICORE 6/29/1993 Nnot given NNLATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNPORTER TOPGUN SILICON.ACRYL.CAULK WHITE 9/10/2001 Nnot given NNPORTERDECK TRANSPARENT STAIN NATURAL2110 11/19/1999 Nnot given NNPORTERGUARD FASTDRY ALKD SATING ENML BLK 11/11/1999 Nnot given NNPORTERPREP HEAVY DUTY CLEANER, 571 2/16/1999 Nnot given NNPRO-MASTER 2000 INT OIL ULTRA DEEP BASE 1/4/2000 Nnot given NNTREMFLEX 027-067-996 6/1/1989 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11SUNBRITE PREM. GRADE ALUM. ROOF COATING 10/31/1996 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21PORTER THINNER 5132 9/1/1998 0HMIS 21WET/DRY PREMIUM ROOF CEMENT 10/31/1996 0HMIS 21ECONO FIBERED ALUMINUM ROOF COATING 10/31/1996 1HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MOORE IRONCLAD Q/D IND. ENML 071, C/D071 3/28/1994 0HMIS 21 *LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 393

Page 394: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

PAINT THINNER 3/5/1996 0NFPA 31 *MINWAX WOODFINISH-ALL SHADES, NAT'L VOC 3/2/1995 0NFPA 22THINNER #215 6/3/1992 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNGIL-TREAD 6-11 SPECIAL GREEN 9/3/1997 Nnot given NNGLYPTEX EGGSHELL 438, 439, 440, 445 1/6/1993 Nnot given NNPORTERDECK TRANSPARENT STAIN NATURAL2110 11/19/1999 Nnot given NNPORTERGUARD FASTDRY ALKD SATING ENML BLK 11/11/1999 Nnot given NNPRO-MASTER 2000 INT OIL ULTRA DEEP BASE 1/4/2000 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNTHINNER 5143 11/2/1993 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PPG QUICK DRY SPRAY ENML, 55-B (302,...) 5/15/1992 0HMIS 32KRYLON 1501 INT/EXT GLOSSY WHITE 9/5/1997 0HMIS 42KRYLON 1701 IND.MAINT&TCH-UP BRIGHT GOLD 1/5/1994 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42KRYLON1602IND.MAINT&TCH-UP ULTRA FLT.BLK 1/5/1994 0HMIS 42RUST CURB GRAY PRIMER 1/1/1985 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 394

Page 395: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON 1601 GLOSSY BLACK 3/1/1995 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MAINT.&TOUCH UP, 1813 DAISY YLW 8/17/1998 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPORTERPREP HEAVY DUTY CLEANER, 571 2/16/1999 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNPORTER MASTIC 7000 MEDIUM GRAY 10/13/1998 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 395

Page 396: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32PPG QUICK DRY SPRAY ENML, 55-B (302,...) 5/15/1992 0HMIS 32SW REDUCER 54, R7K54 9/1/1997 0HMIS 32SW REDUCER 58, R7K58 9/1/1997 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON 1501 INT/EXT GLOSSY WHITE 9/5/1997 0HMIS 42KRYLON 1701 IND.MAINT&TCH-UP BRIGHT GOLD 1/5/1994 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42KRYLON1602IND.MAINT&TCH-UP ULTRA FLT.BLK 1/5/1994 0HMIS 42RUST CURB GRAY PRIMER 1/1/1985 0HMIS 42PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *XYLENE THINNER 5133 6/12/1998 0HMIS 32 *KRYLON INT/EXT PAINT, BANNER RED 2108 10/14/2003 0HMIS 42 *KRYLON OSHA COLORS SAFETY YELLOW 1813 12/2/2003 0HMIS 42 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32KRYLON 1601 GLOSSY BLACK 3/1/1995 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MAINT.&TOUCH UP, 1813 DAISY YLW 8/17/1998 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CARBOLINE 188 FINISH PT A 9/11/1993 0NFPA 33

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 396

Page 397: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ACRI-FIL 896-WHITE 2/1/1995 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNINTERLAC 298 PRIMER GRAY 12/17/1996 Nnot given NNINTERNATIONAL THINNER GTA007 9/22/1993 Nnot given NNINTERNATIONAL THINNER GTA415 5/19/1997 Nnot given NNINTERTHANE BASE RECOATABLE YELLOW,HSA150 7/29/1996 Nnot given NNINTERTHANE H#RDARE, HSA049 2/7/1996 Nnot given NNPORTER THANE 9000 WHITE BASE 10/13/1998 Nnot given NNPPG DXR80 HARDENER 5/5/1995 Nnot given NNTREMFLEX 027-067-996 6/1/1989 Nnot given NNU-PRIME, UNIVERSAL PRIMER 282,284,285 1/24/1989 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NNPORTER MASTIC 7000 CONVERTER 10/13/1998 Nnot given NN *PORTER MASTIC 7000 MEDIUM GRAY 10/13/1998 Nnot given NN *

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PPG QUICK DRY SPRAY ENML, 55-B (302,...) 5/15/1992 0HMIS 32KRYLON 1501 INT/EXT GLOSSY WHITE 9/5/1997 0HMIS 42KRYLON 1701 IND.MAINT&TCH-UP BRIGHT GOLD 1/5/1994 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42KRYLON1602IND.MAINT&TCH-UP ULTRA FLT.BLK 1/5/1994 0HMIS 42RUST CURB GRAY PRIMER 1/1/1985 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 397

Page 398: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON 1601 GLOSSY BLACK 3/1/1995 0NFPA 42SW IND. MAINT.&TOUCH UP, 1813 DAISY YLW 8/17/1998 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11SUNBRITE PREM. GRADE ALUM. ROOF COATING 10/31/1996 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21PORTER THINNER 5132 9/1/1998 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 398

Page 399: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

WET/DRY PREMIUM ROOF CEMENT 10/31/1996 0HMIS 21ECONO FIBERED ALUMINUM ROOF COATING 10/31/1996 1HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *MOORE IRONCLAD Q/D IND. ENML 071, C/D071 3/28/1994 0HMIS 21 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02OLYMPIC WATER BASED SANDING SEALER,41061 7/7/1999 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32PPG QUICK DRY SPRAY ENML, 55-B (302,...) 5/15/1992 0HMIS 32SW REDUCER 54, R7K54 9/1/1997 0HMIS 32SW REDUCER 58, R7K58 9/1/1997 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON 1501 INT/EXT GLOSSY WHITE 9/5/1997 0HMIS 42KRYLON 1701 IND.MAINT&TCH-UP BRIGHT GOLD 1/5/1994 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42KRYLON1602IND.MAINT&TCH-UP ULTRA FLT.BLK 1/5/1994 0HMIS 42RUST CURB GRAY PRIMER 1/1/1985 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 399

Page 400: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *XYLENE THINNER 5133 6/12/1998 0HMIS 32 *KRYLON INT/EXT PAINT, BANNER RED 2108 10/14/2003 0HMIS 42 *KRYLON OSHA COLORS SAFETY YELLOW 1813 12/2/2003 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11PORTER GUARD DTM ACR GL SAFETY RED 2912 9/9/2004 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PAINT THINNER 3/5/1996 0NFPA 31 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 400

Page 401: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12CARBOMASTIC 15 LOW ODOR PART A 10/30/1995 1NFPA 12MINWAX WOODFINISH-ALL SHADES, NAT'L VOC 3/2/1995 0NFPA 22THINNER #215 6/3/1992 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32KRYLON 1601 GLOSSY BLACK 3/1/1995 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MAINT.&TOUCH UP, 1813 DAISY YLW 8/17/1998 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CARBOLINE 188 FINISH PT A 9/11/1993 0NFPA 33DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ACRI-FIL 896-WHITE 2/1/1995 Nnot given NNACRYLIC EGGSHELL 1033/1034/1035... 5/9/1995 Nnot given NNACRYLIC GLOSS ENAMEL 904/905/907/908/909 9/23/1991 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGIL-TREAD 6-11 SPECIAL GREEN 9/3/1997 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 401

Page 402: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

GLYPTEX EGGSHELL 438, 439, 440, 445 1/6/1993 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNINTERLAC 298 PRIMER GRAY 12/17/1996 Nnot given NNINTERNATIONAL THINNER GTA007 9/22/1993 Nnot given NNINTERNATIONAL THINNER GTA415 5/19/1997 Nnot given NNINTERTHANE BASE RECOATABLE YELLOW,HSA150 7/29/1996 Nnot given NNINTERTHANE H#RDARE, HSA049 2/7/1996 Nnot given NNLATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPORTER ACRI-SHIELD EXT.ACRYLIC BRLNT.WHT 3/23/2001 Nnot given NNPORTER ACRI-SHIELD EXTERIOR ACRYLIC, 619 6/21/2001 Nnot given NNPORTER ACRI-SHIELD GLS EXT.ACRYL.ORN.RED 8/16/2001 Nnot given NNPORTER THANE 9000 CONVERTER 10/22/1998 Nnot given NNPORTER THANE 9000 WHITE BASE 10/13/1998 Nnot given NNPORTER TOPGUN SILICON.ACRYL.CAULK WHITE 9/10/2001 Nnot given NNPORTERDECK TRANSPARENT STAIN NATURAL2110 11/19/1999 Nnot given NNPORTERGUARD FASTDRY ALKD SATING ENML BLK 11/11/1999 Nnot given NNPORTERPREP HEAVY DUTY CLEANER, 571 2/16/1999 Nnot given NNPPG DXR80 HARDENER 5/5/1995 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPRO-MASTER 2000 INT OIL ULTRA DEEP BASE 1/4/2000 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNTHINNER 5143 11/2/1993 Nnot given NNTREMFLEX 027-067-996 6/1/1989 Nnot given NNU-PRIME, UNIVERSAL PRIMER 282,284,285 1/24/1989 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *PORTER MASTIC 7000 CONVERTER 10/13/1998 Nnot given NN *PORTER MASTIC 7000 MEDIUM GRAY 10/13/1998 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 402

Page 403: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SW REDUCER 54, R7K54 9/1/1997 0HMIS 32SW REDUCER 58, R7K58 9/1/1997 0HMIS 32KRYLON 1501 INT/EXT GLOSSY WHITE 9/5/1997 0HMIS 42KRYLON 1701 IND.MAINT&TCH-UP BRIGHT GOLD 1/5/1994 0HMIS 42KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42KRYLON1602IND.MAINT&TCH-UP ULTRA FLT.BLK 1/5/1994 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PORTER GUARD IND ALUMINUM 293 8/10/2004 1HMIS 22 *XYLENE THINNER 5133 6/12/1998 0HMIS 32 *KRYLON INT/EXT PAINT, BANNER RED 2108 10/14/2003 0HMIS 42 *KRYLON OSHA COLORS SAFETY YELLOW 1813 12/2/2003 0HMIS 42 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *PAINT THINNER 3/5/1996 0NFPA 31 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 403

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Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON 1601 GLOSSY BLACK 3/1/1995 0NFPA 42SW IND. MAINT.&TOUCH UP, 1813 DAISY YLW 8/17/1998 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS ULTRA DEEP BASE 1/15/1999 Nnot given NNINTERTHANE BASE RECOATABLE YELLOW,HSA150 7/29/1996 Nnot given NNPORTER ACRI-SHIELD EXT.ACRYLIC BRLNT.WHT 3/23/2001 Nnot given NNPORTER ACRI-SHIELD GLS EXT.ACRYL.ORN.RED 8/16/2001 Nnot given NNPORTER TOPGUN SILICON.ACRYL.CAULK WHITE 9/10/2001 Nnot given NNPPG DXR80 HARDENER 5/5/1995 Nnot given NNTREMFLEX 027-067-996 6/1/1989 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CARBOMASTIC 15 LOW ODOR PART A 10/30/1995 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42CARBOLINE 188 FINISH PT A 9/11/1993 0NFPA 33ACRI-FIL 896-WHITE 2/1/1995 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNINTERTHANE H#RDARE, HSA049 2/7/1996 Nnot given NNLATEX SEMI-GLOSS ENML 105, 107, 108, 109 7/9/1993 Nnot given NNPORTER THANE 9000 CONVERTER 10/22/1998 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 404

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Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

PPG DXR80 HARDENER 5/5/1995 Nnot given NNTREMFLEX 027-067-996 6/1/1989 Nnot given NNPORTER MASTIC 7000 CONVERTER 10/13/1998 Nnot given NN *PORTER MASTIC 7000 MEDIUM GRAY 10/13/1998 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PORTERTUF 2000, BLACK, PART A 11/13/1996 0HMIS 32 *XYLENE THINNER 5133 6/12/1998 0HMIS 32 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *INTERLAC 298 PRIMER GRAY 12/17/1996 Nnot given NNINTERNATIONAL THINNER GTA007 9/22/1993 Nnot given NNINTERNATIONAL THINNER GTA415 5/19/1997 Nnot given NNPORTER TOPGUN SILICON.ACRYL.CAULK WHITE 9/10/2001 Nnot given NNPPG DXR80 HARDENER 5/5/1995 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 405

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Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

PPG DXR80 HARDENER 5/5/1995 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 406

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Department: Paint Shed

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 407

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Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 408

Page 409: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 409

Page 410: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNFLAKE CALCIUM CHLORIDE 9/1/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 410

Page 411: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 411

Page 412: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 412

Page 413: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNSLIME FLAT TIRE ELIMINATOR TIRE SEALANT 9/1/1998 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 413

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Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 414

Page 415: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFLAKE CALCIUM CHLORIDE 9/1/1994 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNALUMINUM FLUORIDE 1/4/2007 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 415

Page 416: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 416

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Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNALUMINUM FLUORIDE 1/4/2007 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 417

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Department: Potline Silos

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 418

Page 419: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11COPPER SCRAP 7/8/1998 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *PHOSCRETE HOTFLR DRY MIX 7/1/2005 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32TITEBOND PROVANTAGE HVY DUTY CONST ADH 10/20/2010 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CN137 8/7/1997 0NFPA 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 419

Page 420: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31HEAVY DENSITY PIPE INSULATION 2/11/2004 0NFPA 01 *EPOXY CEMENT KIT 2/3/1999 0NFPA 12SC 2000 CEMENT 2/3/1999 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SLIP PLATE #3 12/10/2004 0NFPA 42DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNCRUSHED ELECTROLYTIC BATH 1/1/1985 Nnot given NNDUCTILE IRON 10/1/2002 Nnot given NNGRAY IRON 10/1/2002 Nnot given NNHALL CELL BATH WITH BERYLLIUM 10/20/2000 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNBATH (ELECTROLYTIC), ALUMINUM REDUCTION 2/27/2003 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST 1XX.X SERIES ALLOY 4/28/2010 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CHALKBAORD WATER BLACK 12/1/2007 0HMIS 21CHALKBOARD PAINT - BLACK 5/1/2011 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21SIKAFIX HH HYDROPHILIC 12/18/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 420

Page 421: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21KROIL 6/7/2009 NNFPA N1QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 421

Page 422: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PERMA FIL (PART B) 4/22/2002 1HMIS 13VAL PLEX EP GREASE 2/10/1995 0NFPA 11PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41SODA ASH (SODIUM CARBONATE, ANHYDROUS) 3/27/1998 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 6/1/2004 0NFPA 02SODA ASH BRIQUETTES 10/12/2006 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02EPOXY CEMENT KIT 2/3/1999 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 12DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00ELECTROLYTIC BATH WITH/WITHOUT LITHIUM 4/10/2006 Nnot given 0NDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 5/6/2009 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 422

Page 423: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32TITEBOND PROVANTAGE HVY DUTY CONST ADH 10/20/2010 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 423

Page 424: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

X STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 424

Page 425: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01LITHIUM CARBONATE 10/1/2009 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01ZETEX UNTREATED PRODUCTS 8/8/2008 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11LITHIUM CARBONATE 1/1/1985 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CHALKBAORD WATER BLACK 12/1/2007 0HMIS 21CHALKBOARD PAINT - BLACK 5/1/2011 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1COPPER SCRAP 7/8/1998 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *KAOWOOL M BOARDS 3/2/2010 0HMIS 01 *PHOSCRETE HOTFLR DRY MIX 7/1/2005 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CERAFIBER KAOWOOL PYRO-BLOC 4/15/2010 0HMIS 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 425

Page 426: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SODIUM CARBONATE, ANHYDROUS 1/26/2004 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02SIKAFIX HH HYDROPHILIC 12/18/2006 0HMIS 12ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PERMA FIL (PART A) 4/22/2002 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32TITEBOND PROVANTAGE HVY DUTY CONST ADH 10/20/2010 0HMIS 32UNI-PAINT MARKERS (PX-20,-21,-30) 1/2/2003 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42SODIUM ALUMINUM TETRAFLUORIDE 5/18/2000 0HMIS 02 *SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *SODIUM ALUMINUM TETRAFLUORIDE 5/18/2000 0HMIS N2 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PERMA FIL (PART B) 4/22/2002 1HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 426

Page 427: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNSLIME FLAT TIRE ELIMINATOR TIRE SEALANT 9/1/1998 0NFPA 00MOLTEN ALUMINUM 7/2/2001 2NFPA 30DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01DURALUM 9/1/2008 0NFPA 01KAO-TEX 1000 CLOTH 6/18/2008 0NFPA 01SENTINEL 6/22/1998 0NFPA 01SODA ASH DENSE NATURAL 1/26/2004 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11VAL PLEX EP GREASE 2/10/1995 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21POWER LUBE MULTI-PURP LUBRICANT 11/7/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41KROIL 6/7/2009 NNFPA N1HEAVY DENSITY PIPE INSULATION 2/11/2004 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *SODA ASH (SODIUM CARBONATE, ANHYDROUS) 3/27/1998 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 6/1/2004 0NFPA 02SODA ASH BRIQUETTES 10/12/2006 0NFPA 02SODA ASH DENSE 8/11/2015 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02EPOXY CEMENT KIT 2/3/1999 0NFPA 12SC 2000 CEMENT 2/3/1999 0NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 427

Page 428: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 12FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SLIP PLATE #3 12/10/2004 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00FLUORSPAR 7/1/2009 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01BOTTOM / SIDE-WALL BLOCKS CATHODE BLOCKS 6/4/2012 1not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ELECTROLYTIC BATH WITH/WITHOUT LITHIUM 4/10/2006 Nnot given 0NADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAEROSTYLE PYROJACKET 6/1/2011 Nnot given NNALUMINUM FLUORIDE 3/8/2000 Nnot given NNAMADAC-F 12/1/1989 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCARBON BLOCK RANGE 3/27/1998 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCRUSHED BATH 1/5/2011 Nnot given NNCRUSHED ELECTROLYTIC BATH 1/1/1985 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDUCTILE IRON 10/1/2002 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 428

Page 429: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNELECTRICAL JOINT COMPOUND NO. 2 5/6/2009 Nnot given NNELECTROLYTIC BATH 4/4/2001 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNGRAPHITIC CATHODE BLOCKS 3/1/2012 Nnot given NNGRAY IRON 10/1/2002 Nnot given NNHALL CELL BATH 3/31/2009 Nnot given NNHALL CELL BATH WITH BERYLLIUM 10/20/2000 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLGHP 2 HI PERFORM POLYUREA BRNG GREASE 12/2/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMINWOOL-1200 9/5/2008 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROTECTOLITE 1/26/2004 Nnot given NNPURIFIED BATH 9/27/2004 Nnot given NNSBS-44 PROTECTIVE CREAM, WATER RESISTANT 7/1/1997 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSS526 (CRUCE LID GASKET) 7/27/2001 Nnot given NNSYALON 101/102 5/5/1999 Nnot given NNALUMINUM FLUORIDE 10/20/2003 Nnot given NN *ALUMINUM FLUORIDE 4/1/2005 Nnot given NN *ALUMINUM FLUORIDE 1/4/2007 Nnot given NN *BATH (ELECTROLYTIC), ALUMINUM REDUCTION 2/27/2003 Nnot given NN *CALCINED ALUMINA 1/1/2010 Nnot given NN *CALCINED ALUMINA 6/1/2011 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *REMELT INGOT AND CAST 1XX.X SERIES ALLOY 4/28/2010 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 429

Page 430: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SYALON 101/102 5/5/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01LITHIUM CARBONATE 10/1/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11COPPER SCRAP 7/8/1998 0HMIS 01 *PHOSCRETE HOTFLR DRY MIX 7/1/2005 0HMIS 01 *METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 430

Page 431: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *REMELT INGOT AND CAST 1XX.X SERIES ALLOY 4/28/2010 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21COPPER SCRAP 7/8/1998 0HMIS 01 *SIKAFIX HH HYDROPHILIC 12/18/2006 0HMIS 12ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12PERMA FIL (PART A) 4/22/2002 0HMIS 22M32300 POLYURETHANE FOAM 9/24/2008 1HMIS 22DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PERMA FIL (PART B) 4/22/2002 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *HEAVY DENSITY PIPE INSULATION 2/11/2004 0NFPA 01 *FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DOW CORNING 3-5000SILCNE ROOF COAT.L.GRY 5/1/2002 0NFPA 22 *ELECTROLYTIC BATH WITH/WITHOUT LITHIUM 4/10/2006 Nnot given 0NADALOX OR METALITE CAP 6/24/1999 Nnot given NNALUMINUM FLUORIDE 3/8/2000 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 431

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Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

HALL CELL BATH WITH BERYLLIUM 10/20/2000 Nnot given NNSYALON 101/102 5/5/1999 Nnot given NNBATH (ELECTROLYTIC), ALUMINUM REDUCTION 2/27/2003 Nnot given NN *REMELT INGOT AND CAST 1XX.X SERIES ALLOY 4/28/2010 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PHOSCRETE HOTFLR DRY MIX 7/1/2005 0HMIS 01 *SODIUM CARBONATE, ANHYDROUS 1/26/2004 0HMIS 02ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12DC12060 GUNTHER ULTRA BOND 3/3/2003 0HMIS 32TITEBOND PROVANTAGE HVY DUTY CONST ADH 10/20/2010 0HMIS 32SODIUM ALUMINUM TETRAFLUORIDE 5/18/2000 0HMIS 02 *SODIUM ALUMINUM TETRAFLUORIDE 5/18/2000 0HMIS N2 *PERMA FIL (PART B) 4/22/2002 1HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *ELECTROLYTIC BATH WITH/WITHOUT LITHIUM 4/10/2006 Nnot given 0N

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11ELASTOSPRAY HPS 5100-2.5 FF RESIN 7/22/2002 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11COPPER SCRAP 7/8/1998 0HMIS 01 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 432

Page 433: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOSPRAY HPS 5100-2.5 FF RESIN 9/7/2000 1HMIS 12GREAT STUFF GAPS AND CRACKS 2/16/2004 1HMIS 42ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *MOLTEN ALUMINUM 7/2/2001 2NFPA 30KROIL 6/7/2009 NNFPA N1SODA ASH DENSE 8/11/2015 0NFPA 02EPOXY CEMENT KIT 2/3/1999 0NFPA 12UT-R20 HARDENER 2/3/1999 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DOW CORNING 3-4000 SIL ROOF CTING(TC)LT 1/30/2004 0NFPA 22 *DUCTILE IRON 10/1/2002 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNGRAY IRON 10/1/2002 Nnot given NNMINWOOL-1200 9/5/2008 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSYALON 101/102 5/5/1999 Nnot given NNALUMINUM FLUORIDE 10/20/2003 Nnot given NN *ALUMINUM FLUORIDE 4/1/2005 Nnot given NN *ALUMINUM FLUORIDE 1/4/2007 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 433

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Department: Potlines

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 434

Page 435: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *MOLY LUBE 3/21/2002 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 435

Page 436: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

POLYCHLORINATED BIPHENYLS (PCBS) 7/1/1999 Nnot given NNUCARTHERM HEAT TRANSFER FLUID PM-6141 11/6/1992 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *UNIVIS HVI 13 4/23/2008 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ACCUDRI SF6 - SULFUR HEXAFLUORIDE 6/8/2007 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNWEMCO C, 55822AG 5/8/1990 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 436

Page 437: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42MOLY LUBE 3/21/2002 0HMIS 42 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *CLEANING SOLVENT 755 (AEROSOL) 1/22/1996 1NFPA 12WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22QD CONTACT CLEANER 2130 11/17/1994 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SEALED MAINT FREE LEAD-ACID BATTERIES 1/5/2005 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 437

Page 438: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42MOLY LUBE 3/21/2002 0HMIS 42 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32QD CONTACT CLEANER 2130 11/17/1994 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 438

Page 439: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42MOLY LUBE 3/21/2002 0HMIS 42 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 439

Page 440: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11CROSSTRAN 106, 206 & 306 10/30/2000 0HMIS 11CROSSTRANS 206 ELECTRICAL INSULATING OIL 2/5/2009 0HMIS 11FARGO F-13 3/16/2011 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31CRC DRY GLIDE AEROSOL 3/17/2001 0HMIS 41DI-ELECTRIC GREASE 5/27/2003 0HMIS 41SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 440

Page 441: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02CLEAN-RITE PURPLE POWER 1/1/2005 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *MOLY LUBE 3/21/2002 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SEALED MAINT FREE LEAD-ACID BATTERIES 1/5/2005 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 441

Page 442: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12CLEANING SOLVENT 755 (AEROSOL) 1/22/1996 1NFPA 12WASP & HORNET KILLER PLUS 6/15/2005 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32QD CONTACT CLEANER 2130 11/17/1994 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ACCUDRI SF6 - SULFUR HEXAFLUORIDE 6/8/2007 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBLUE RIBBON BLEACH-LIQ BLEACH-HOUSEHOLD 3/30/1989 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDOWFROST HEAT TRANSFER FLUID 1/8/1999 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 442

Page 443: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPOLYCHLORINATED BIPHENYLS (PCBS) 7/1/1999 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNRFU 112 9/11/1991 Nnot given NNSAHARA DG HERBICIDE 1/10/2006 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNUCARTHERM HEAT TRANSFER FLUID PM-6141 11/6/1992 Nnot given NNEDISOL VI CAPACITOR OIL 12/14/2007 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02BLUE RIBBON BLEACH-LIQ BLEACH-HOUSEHOLD 3/30/1989 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11DI-ELECTRIC GREASE 5/27/2003 0HMIS 41METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 443

Page 444: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *MOLY LUBE 3/21/2002 0HMIS 42 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *SEALED MAINT FREE LEAD-ACID BATTERIES 1/5/2005 0NFPA 01CLEANING SOLVENT 755 (AEROSOL) 1/22/1996 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNUCARTHERM HEAT TRANSFER FLUID PM-6141 11/6/1992 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 444

Page 445: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CLEANING SOLVENT 755 (AEROSOL) 1/22/1996 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NNUCARTHERM HEAT TRANSFER FLUID PM-6141 11/6/1992 Nnot given NNEDISOL VI CAPACITOR OIL 12/14/2007 Nnot given NN *

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SAHARA DG HERBICIDE 1/10/2006 Nnot given NNUCARTHERM HEAT TRANSFER FLUID PM-6141 11/6/1992 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 445

Page 446: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Rectifier Area

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 446

Page 447: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 447

Page 448: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 448

Page 449: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSPENT POTLINER - ALUMINUM REDUCTION CELL 4/5/2001 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 449

Page 450: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 450

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Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 451

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Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 452

Page 453: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 453

Page 454: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSPENT POTLINER - ALUMINUM REDUCTION CELL 4/5/2001 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NNSPENT POTLINING 12/20/1994 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 454

Page 455: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 455

Page 456: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SPENT POTLINER - ALUMINUM REDUCTION CELL 4/5/2001 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSPENT POTLINER - ALUMINUM REDUCTION CELL 4/5/2001 Nnot given NNSPENT POTLINING 5/13/1985 Nnot given NNSPENT POTLINING 12/20/1994 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 456

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Department: SPL Building

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 457

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Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 458

Page 459: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22NON-FLAMMABLE GAS MIXTURE-50018 8/31/2005 0HMIS 03CARBON MONOXIDE IN AIR 1/1/2003 0NFPA 00RECONSTITUTED AIR 1/1/2003 0NFPA 00CRAZY CLEAN 1/3/2012 0NFPA 11GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CALIBRATION CHECK GAS 1/1/2006 Nnot given NNSULFUR HEXAFLUORIDE 1/1/2005 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 459

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Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11XTREME BLUE -20 WWF 6/13/2005 0NFPA 31GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRAZY CLEAN 1/3/2012 0NFPA 11GLASS CLEANER 3/18/2008 0NFPA 11 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BLUE WINDOW CLEANER 4/14/2006 0HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 460

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Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *NON-FLAMMABLE GAS MIXTURE-50018 8/31/2005 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21XTREME BLUE -20 WWF 6/13/2005 0NFPA 31GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 461

Page 462: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01BACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 462

Page 463: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21NON-FLAMMABLE GAS MIXTURE-50018 8/31/2005 0HMIS 03PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 463

Page 464: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 464

Page 465: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Safety

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 465

Page 466: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 466

Page 467: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 467

Page 468: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00ACCU-TAB WHITE CALCIUM HYPOCHLORITE 6/15/1998 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRESTOCHLOR 1/21/1992 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 468

Page 469: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 469

Page 470: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

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Address: P.O. Box 500

Hawesville KY 42348

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNDIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ACCU-TAB WHITE CALCIUM HYPOCHLORITE 6/15/1998 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 472

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRESTOCHLOR 1/21/1992 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ACCU-TAB WHITE CALCIUM HYPOCHLORITE 6/15/1998 Nnot given NNPRESTOCHLOR 1/21/1992 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 473

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date Health

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 474

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *PRESTOCHLOR 1/21/1992 Nnot given NN

HMIS/NFPA Flam React

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 475

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Department: Sewage Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

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Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 476

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Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01STRAIT-LINE MARKING CHALK, BLUE 3/1/1995 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11HP 51645A INK CARTRIDGE 8/1/1997 0HMIS 21DRITHERM Q1, Q1T, Q2, Q2T... 3/1/1996 0HMIS 01 *FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *OIL-DRI FLOOR ABSORBENT 8/1/1996 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01FLEETWELD 5P AWS E6010 1/20/1996 0NFPA 01JETWELD LH-70, E7018 2/1/1996 0NFPA 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 477

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Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

MERIT 0.5 G INSECTICIDE 9/23/1994 1NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31FIBERFRAX ROPES 12/4/1995 0NFPA 01 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNBLACK DEVELOPER 5/26/1989 Nnot given NNCORPATCH 80/90 7/27/1994 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNKS-3 PAINT REMOVER 6/14/1989 Nnot given NNKX-P451 6/30/1996 Nnot given NNMORCOSET 50, 50 FIRM & 50 DIPPING 3/5/2008 Nnot given NNSVENSKA SILICA 11/1/1985 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21HP 51645A INK CARTRIDGE 8/1/1997 0HMIS 21HP PRINT CARTRIDGE 51649A 3/2/1998 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *CANON INK CARTRIDGE BLACK BC-02 12/1/1992 0NFPA 10KEROSENE (K104) 9/5/1985 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP 51625A INK CARTRIDGE 8/1/1997 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21LIQUID WRENCH SUPER PENETRANT (POUR) 8/1/1996 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 478

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Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ALUMINUM PASTE PIGMENT, ALCAN 463,465... 11/1/1985 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

CARBON DIOXIDE 2/1/1999 0HMIS 01REFRIGERANT 12 9/1/1995 0HMIS 01FREON 12 10/7/1996 1HMIS 01NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW RED INSULATING VARNISH #00601 3/1/1995 0HMIS 42CARPET SCIENCE TRAFFIC LANE CARPET CLNR 6/18/1997 0NFPA 40CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41NATURAL GAS 11/16/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *GENETRON 12 9/1/1994 0NFPA 02GENETRON 22 1/1/1997 0NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42PURGE III INSECT KILLER 6/7/1995 1NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 479

Page 480: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

FORANE R 22 12/30/1993 Nnot given NNFREON 114 10/1/1985 Nnot given NNFREON TF 1/1/1985 Nnot given NNNATIONAL REFRIGERANT 22 6/8/1992 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NNPHFFT AEROSOL DUSTER 2/1/1985 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00DEVELOPER FLUID CONTAINED IN POD FILM... 8/24/1994 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROCELL PC1300,1400,1500,2400,908,918... 10/10/1997 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21CHEMICAL CEMENT 46-248/250/253/256/080 10/15/1992 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 480

Page 481: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW RED INSULATING VARNISH #00601 3/1/1995 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CARPET SCIENCE TRAFFIC LANE CARPET CLNR 6/18/1997 0NFPA 40CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31NATURAL GAS 11/16/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42PURGE III INSECT KILLER 6/7/1995 1NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNLIQUID PAPER CORRECTION FLUID LPCF-19-1 12/10/1998 Nnot given NNWITE-OUT FOR EVERYTHING & M/P COMML PACK 3/30/1994 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 481

Page 482: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW RED INSULATING VARNISH #00601 3/1/1995 0HMIS 42CARPET SCIENCE TRAFFIC LANE CARPET CLNR 6/18/1997 0NFPA 40CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41NATURAL GAS 11/16/1994 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42PURGE III INSECT KILLER 6/7/1995 1NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00ALUMINUM OXIDE SLURRY 2/1/1994 0HMIS 10GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01NAMICO 239 GEMINI 3/6/1990 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 482

Page 483: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01STRAIT-LINE MARKING CHALK, BLUE 3/1/1995 0HMIS 01FREON 12 10/7/1996 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51645A INK CARTRIDGE 8/1/1997 0HMIS 21HP PRINT CARTRIDGE 51649A 3/2/1998 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21CHEMICAL CEMENT 46-248/250/253/256/080 10/15/1992 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02FUSIL CASTABLE 820-I 8/1/1994 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 483

Page 484: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW RED INSULATING VARNISH #00601 3/1/1995 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *OMNI GARD 12/2/1993 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNCHEVRON MOLY GREASE EP 11/24/2009 0NFPA 10CHEVRON OPEN GEAR GREASE 10/25/2010 0NFPA 10MOBILITH SHC 220 1/1/2011 0NFPA 10KEROSENE (K104) 9/5/1985 0NFPA 20CARPET SCIENCE TRAFFIC LANE CARPET CLNR 6/18/1997 0NFPA 40DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01FLEETWELD 5P AWS E6010 1/20/1996 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11DOW CORNING 732 M/P SEALANT, WHITE 7/29/1997 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 484

Page 485: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41FIBERFRAX ROPES 12/4/1995 0NFPA 01 *GLASS CLEANER 3/18/2008 0NFPA 11 *GENETRON 12 9/1/1994 0NFPA 02GENETRON 22 1/1/1997 0NFPA 02MACH 2 GRANULAR TURF INSECTICIDE 6/13/1997 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02MOLYKOTE M-77 PASTE 10/18/1995 0NFPA 12PENDULUM WDG HERBICIDE 6/2/1997 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12LIQUID WRENCH SUPER PENETRANT (POUR) 8/1/1996 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMINUM PASTE PIGMENT, ALCAN 463,465... 11/1/1985 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 485

Page 486: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DEVELOPER FLUID CONTAINED IN POD FILM... 8/24/1994 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFORANE R 22 12/30/1993 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNKS-3 PAINT REMOVER 6/14/1989 Nnot given NNLIQUID PAPER CORRECTION FLUID LPCF-19-1 12/10/1998 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNMORCOSET 50, 50 FIRM & 50 DIPPING 3/5/2008 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROCELL PC1300,1400,1500,2400,908,918... 10/10/1997 Nnot given NNSBS-44 PROTECTIVE CREAM, WATER-RESISTANT 9/1/1995 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSVENSKA SILICA 11/1/1985 Nnot given NNWITE-OUT FOR EVERYTHING & M/P COMML PACK 3/30/1994 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 486

Page 487: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW RED INSULATING VARNISH #00601 3/1/1995 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNFORANE R 22 12/30/1993 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21LOCTITE 2 GASKET SEALANT 30515 5/7/2009 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 487

Page 488: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31MACH 2 GRANULAR TURF INSECTICIDE 6/13/1997 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *DOW CORNING 732 M/P SEALANT, WHITE 7/29/1997 0NFPA 11QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ALUMINUM PASTE PIGMENT, ALCAN 463,465... 11/1/1985 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 488

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Department: Stores Warehouse

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 489

Page 490: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Technical Department

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22CRAZY CLEAN 1/3/2012 0NFPA 113M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 490

Page 491: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Technical Department

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 323M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31CRAZY CLEAN 1/3/2012 0NFPA 113M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 491

Page 492: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Technical Department

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

ECOSAFE V-300 9/23/2011 0NFPA 11LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 323M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *QBLOC NR PAPER 4/1/2006 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32ENSOLV-GCS 1/25/2013 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 492

Page 493: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Technical Department

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 133M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *

SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 493

Page 494: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Technical Department

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 494

Page 495: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01MILLED FIBER 9/23/1998 0HMIS 01DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BATTERY TERMINAL 278 7/23/2001 0HMIS 41FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *MEGA BLACK SILICONE 11/6/2008 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12MAGNUM INSTANT GAS TANK RESIN 1/18/2007 1HMIS 12DIESEL GUARD LOW POUR PLUS 100 9/27/2005 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 495

Page 496: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 013M WINDO-WELD SUPER FAST URTH 8608, 8609 10/14/2009 0NFPA 01JETWELD LH-90 MR, AWS E8018-B2 10/13/1997 0NFPA 0150 ML BEARING MOUNT GRADE B 1/3/1995 1NFPA 11ADHESIVE/SEALANT 271 1/22/1996 1NFPA 11MARATHON REGULAR UNLEADED GASOLINE 12/7/2010 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31SNAP STARTING FLUID 6/20/2001 0NFPA 41 *MINRO-FIRE CAST 4/7/2006 1NFPA 0250ML GASKET MAKER HYSTER 1/4/1994 1NFPA 12AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SELECT 700GS WELDING WIRE 1/9/2006 0NFPA 02 *DIESEL FUEL THERAPY INJECTOR CLNER PLUS 10/5/2005 0NFPA 22 *LEAD ACID BATTERY WET, FILLED WITH ACID 11/29/2010 2NFPA 03LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13RUBBER ADHESIVE 3/9/2003 0NFPA 23 *1 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNER 70S6 WELDING WIRE 3/1/2007 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CRYSTAL CLEAN 142 + MINERAL SPIRITS 2/14/2008 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LIQUID WRENCH WHITE LITHIUM GRS W/ CERF 6/3/2008 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12AT-205 RE-SEAL 3/31/2008 0HMIS 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 496

Page 497: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Combustible Liquid

CITRUSOL III 2/19/2003 0HMIS 22DIESEL GUARD LOW POUR PLUS 100 9/27/2005 0HMIS 22RIGHT STUFF 1/15/2009 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *UNIVERSAL CEMENT 3/20/2006 0HMIS 23DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *CHEVRON OPEN GEAR LUBRICANT GRADE 250 NC 10/20/1994 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21ODC-FREE CLEANER & DEGREASER 2/17/1999 0NFPA 21RIGHT STUFF 10/22/1997 0NFPA 21SAFETY-KLEEN PENETRANT 2/1/2007 0NFPA 21VALVOLINE AC 5W20 12/1 QT 1/14/2002 0NFPA 21VOLTZ 12/7/1995 0NFPA 21MARATHON NO. 2 LOW SULFUR DIESEL FUEL 12/7/2010 1NFPA 21SNAP STARTING FLUID 6/20/2001 0NFPA 41 *3M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22ARCTIC EXPRESS ANTIGEL 1:1500 4/18/2006 0NFPA 22ARCTIC EXPRESS ANTIGEL 1:3000 3/3/2005 0NFPA 22ARCTIC EXPRESS ANTIGEL 1:400 4/18/2006 0NFPA 22DIESEL FUEL SUPPLEMENT+CETANE BOOST 12/16/2009 0NFPA 22WIRE DRYER 3/6/2008 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DIESEL FUEL THERAPY INJECTOR CLNER PLUS 10/5/2005 0NFPA 22 *HI-POINT 90 4/19/1996 2NFPA 23RUBBER ADHESIVE 3/9/2003 0NFPA 23 *1 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NNCC 100+ PARTS WASHING SOLVENT 12/2/1994 Nnot given NNCRC 2-26 AEROSOL 12/26/1995 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNHF CONTACT CLEANER (AEROSOL) 2125 6/21/1994 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 497

Page 498: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

SUPER FRIENDLY AIRIT/FREEZEIT 1/2/1997 0HMIS 01KRYLON BATTERY CLEANER 9/7/2008 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31FREE ALL DEEP PENETRATING OIL AEROSOL 2/1/2006 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 1/8/2009 0HMIS 32 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 8/10/2009 0HMIS 32 *KRYLON HIGH HEAT & RADIATOR PAINT BLACK 4/5/2012 0HMIS 32 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *AIR, COMPRESSED 3/9/1996 0NFPA 00ARGON 12/1/1992 0NFPA 00M-5, 0-5, SIGMA-5 10/1/1997 0NFPA 00OXYGEN 10/1/1997 0NFPA 00STARGOLD C-25 SHIELDING GAS MIX 10/1/1997 0NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11BATTERY TERMINAL CLEANER 10/9/2008 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31SPOTCHECK CLEANER/REMOVER SKC-S 4/13/2007 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 6/30/1994 3NFPA 41ACETYLENE 10/1/1997 3NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 498

Page 499: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

GLASS CLEANER 3/18/2008 0NFPA 11 *SNAP STARTING FLUID 6/20/2001 0NFPA 41 *WIRE DRYER 3/6/2008 0NFPA 22CLEAN-R-CARB CARBURETOR CLEANER 05081 10/26/2009 0NFPA 32ACRA SEAL PLASTIC SPRAY & IGNITION 2/27/2008 0NFPA 42BATTERY TERMINAL PROTECTOR 7/20/2010 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42CRC ZINC-IT INSTANT COLD GALVANIZE 5/30/2007 1NFPA 42THRUST QUICK STARTING FLUID 2/19/2009 2NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NNHF CONTACT CLEANER (AEROSOL) 2125 6/21/1994 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02RIPPER ONE 2/15/2005 2HMIS 02LIQUID WRENCH WHITE LITHIUM GRS W/ CERF 6/3/2008 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12BATTERY, ELECTRIC STORAGE 4/24/2001 2HMIS 1250 ML BEARING MOUNT GRADE B 1/3/1995 1NFPA 11ADHESIVE/SEALANT 271 1/22/1996 1NFPA 11PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02SELECT 700GS WELDING WIRE 1/9/2006 0NFPA 02 *LEAD ACID BATTERY WET, FILLED WITH ACID 11/29/2010 2NFPA 03

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 499

Page 500: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

GUARDIAN VALVE-REGULATED LEAD/ACID,... 4/1/1996 2NFPA 13LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13HI-POINT 90 4/19/1996 2NFPA 23DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 001 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NNDUPLEX BRAKE FLUID 6/24/1998 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 70S6 WELDING WIRE 3/1/2007 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NN

KRYLON BATTERY CLEANER 9/7/2008 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21CRC TRANS-X AUTOMATIC TRANS SLIP-STOP 11/10/2008 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31TECH CHEMICAL VULCANIZING FLUID 7/31/2002 0HMIS 31TECH RUB-O-MATIC 4/26/2002 0HMIS 31BATTERY TERMINAL 278 7/23/2001 0HMIS 41FREE ALL DEEP PENETRATING OIL AEROSOL 2/1/2006 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32KLEAN-STRIP ACETONE 11/13/2008 0HMIS 32REAR VIEW MIRROR ACTIVATOR 11/21/2005 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 500

Page 501: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 1/8/2009 0HMIS 32 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 8/10/2009 0HMIS 32 *KRYLON HIGH HEAT & RADIATOR PAINT BLACK 4/5/2012 0HMIS 32 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *AIR BRAKE SYSTEM ANT-FREEZE RUST GUARD 1/31/2006 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *CRAZY CLEAN 1/3/2012 0NFPA 11RED-KOTE LIQ FUEL TANK LINER 8/30/2011 0NFPA 21MARATHON REGULAR UNLEADED GASOLINE 12/7/2010 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31SPOTCHECK CLEANER/REMOVER SKC-S 4/13/2007 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 6/30/1994 3NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SNAP STARTING FLUID 6/20/2001 0NFPA 41 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32CLEAN-R-CARB CARBURETOR CLEANER 05081 10/26/2009 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 323M NRS RUBBER ADHESIVE 8/27/1996 0NFPA 42ACRA SEAL PLASTIC SPRAY & IGNITION 2/27/2008 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 501

Page 502: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42CRC ZINC-IT INSTANT COLD GALVANIZE 5/30/2007 1NFPA 42THRUST QUICK STARTING FLUID 2/19/2009 2NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31278 PLASTI-KOTE BATTERY TERM COATING 12/11/2008 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NNPLASTI-KOTE BATTERY CLEANER 10/26/2006 Nnot given NNSEA FOAM MOTOR TREATMENT TRANS TUNE 1/1/2010 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

KRYLON BATTERY CLEANER 9/7/2008 0HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31FREE ALL DEEP PENETRATING OIL AEROSOL 2/1/2006 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 1/8/2009 0HMIS 32 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 8/10/2009 0HMIS 32 *KRYLON HIGH HEAT & RADIATOR PAINT BLACK 4/5/2012 0HMIS 32 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31SPOTCHECK CLEANER/REMOVER SKC-S 4/13/2007 0NFPA 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 502

Page 503: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable Gas

C FRESH HEALTH C DIS 3/16/1999 0NFPA 41HYDROGEN (25%-45%) IN ARGON 9/1/1992 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 6/30/1994 3NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SNAP STARTING FLUID 6/20/2001 0NFPA 41 *CLEAN-R-CARB CARBURETOR CLEANER 05081 10/26/2009 0NFPA 32ACRA SEAL PLASTIC SPRAY & IGNITION 2/27/2008 0NFPA 42BATTERY TERMINAL PROTECTOR 7/20/2010 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42CRC ZINC-IT INSTANT COLD GALVANIZE 5/30/2007 1NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31278 PLASTI-KOTE BATTERY TERM COATING 12/11/2008 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NNPLASTI-KOTE BATTERY CLEANER 10/26/2006 Nnot given NNSEA FOAM MOTOR TREATMENT TRANS TUNE 1/1/2010 Nnot given NN

EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER HD HAND CLNR W/CITRUS... 4/13/2004 0HMIS 01

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 503

Page 504: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01MILLED FIBER 9/23/1998 0HMIS 01OIL/WATER SEPARATOR 6/8/1994 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01WATER SOLUBLE DEODORIZER 11/1/1993 0HMIS 01CLEAN JET-100 5/13/1998 1HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11CHEVRON DURA-LITH GREASE EP 12/5/2005 0HMIS 11CONOCO HD CALCIUM GREASE 1/19/1992 0HMIS 11DIP SEAL(250,260,300B/G,301,302,303,304) 4/17/2002 0HMIS 11GO-JO ORIGINAL FORMULA H/D HAND CLEANER 1/8/1996 0HMIS 11LUBRIPLATE NO. 105 GREASE 1/21/2010 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11RED SILICONE HI-TEMP LOW VOLATILE 3/30/2006 0HMIS 11TEMPERING OIL 165 4/5/1997 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21CRYSTAL CLEAN 142 + MINERAL SPIRITS 2/14/2008 0HMIS 21KRYLON BATTERY CLEANER 9/7/2008 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21CRC TRANS-X AUTOMATIC TRANS SLIP-STOP 11/10/2008 0HMIS 31MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31TECH CHEMICAL VULCANIZING FLUID 7/31/2002 0HMIS 31TECH RUB-O-MATIC 4/26/2002 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 504

Page 505: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BATTERY TERMINAL 278 7/23/2001 0HMIS 41FREE ALL DEEP PENETRATING OIL AEROSOL 2/1/2006 0HMIS 41SPRAYON E-100 QUICK LUBE 5/11/1994 0HMIS 41SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *LENOX ROSIN CORE LEAD FREE SOLDER 10/1/2007 0HMIS 01 *MEGA BLACK SILICONE 11/6/2008 0HMIS 11 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02RIPPER ONE 2/15/2005 2HMIS 02LIQUID WRENCH WHITE LITHIUM GRS W/ CERF 6/3/2008 0HMIS 12LOCTITE SUPERFLEX RED RTV SILICONE ADH 7/25/2006 0HMIS 12REAR VIEW MIRROR ADHESIVE 11/21/2005 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12MAGNUM INSTANT GAS TANK RESIN 1/18/2007 1HMIS 12BATTERY, ELECTRIC STORAGE 4/24/2001 2HMIS 12AT-205 RE-SEAL 3/31/2008 0HMIS 22CITRUSOL III 2/19/2003 0HMIS 22DIESEL GUARD LOW POUR PLUS 100 9/27/2005 0HMIS 22RIGHT STUFF 1/15/2009 0HMIS 22SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32KLEAN-STRIP ACETONE 11/13/2008 0HMIS 32REAR VIEW MIRROR ACTIVATOR 11/21/2005 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 505

Page 506: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 1/8/2009 0HMIS 32 *BRAKLEEN BRAKE PARTS CLEANER NON CHLR 8/10/2009 0HMIS 32 *KRYLON HIGH HEAT & RADIATOR PAINT BLACK 4/5/2012 0HMIS 32 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *STEAM CLEANER 7/31/1995 0HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13UNIVERSAL CEMENT 3/20/2006 0HMIS 23AIR BRAKE SYSTEM ANT-FREEZE RUST GUARD 1/31/2006 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNFP-301VW HEAT SHRIHK TUBING 3/30/2009 0NFPA 00MAGNALUBE-G 2/19/1997 0NFPA 10MOBIL 10W-40 ENGINE OIL 10/11/2007 0NFPA 10TENNANT SHP 15/40 2/28/1995 0NFPA 10MINERAL SPIRITS 8/1/1996 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 013M WINDO-WELD SUPER FAST URTH 8608, 8609 10/14/2009 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01HOUGHTO-SAFE 520 10/10/1995 0NFPA 01JET-LH 78 MR, ALL SIZES 2/1/1996 0NFPA 01JETWELD LH-90 MR, AWS E8018-B2 10/13/1997 0NFPA 01MURPHY'S TIRE & TUBE MOUNTING COMPOUND 6/1/2007 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 506

Page 507: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01COOLING SYSTEM STOP LEAK ALUMINIZED 11/3/2003 1NFPA 01BRAKE LUBRICANT 1/18/2007 0NFPA 11CHEVRON DELO 400 MULTIGRADE 2/27/2007 0NFPA 11CHEVRON HANDY OIL ISO 15 4/2/1999 0NFPA 11CHEVRON ULTI-PLEX GREASE EP 12/10/1997 0NFPA 11CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11M03 MACHINE GLAZE 11/2/1998 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11PREMIUM CONVENTIONAL SAE 5W-30 MOTOR OIL 9/8/2010 0NFPA 11RADIATOR STOP LEAK AND CONDITION C16/R6 5/6/2007 0NFPA 1150 ML BEARING MOUNT GRADE B 1/3/1995 1NFPA 11ADHESIVE/SEALANT 271 1/22/1996 1NFPA 11BATTERY TERMINAL CLEANER 10/9/2008 0NFPA 21CHEVRON OPEN GEAR LUBRICANT GRADE 250 NC 10/20/1994 0NFPA 21HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21ODC-FREE CLEANER & DEGREASER 2/17/1999 0NFPA 21RED-KOTE LIQ FUEL TANK LINER 8/30/2011 0NFPA 21SAFETY-KLEEN PENETRANT 2/1/2007 0NFPA 21VALVOLINE AC 5W20 12/1 QT 1/14/2002 0NFPA 21VOLTZ 12/7/1995 0NFPA 21MARATHON NO. 2 LOW SULFUR DIESEL FUEL 12/7/2010 1NFPA 21MARATHON REGULAR UNLEADED GASOLINE 12/7/2010 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31SPOTCHECK CLEANER/REMOVER SKC-S 4/13/2007 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41PYROIL STARTING FLUID PART SFR-11 2/10/1995 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41ACETYLENE 10/1/1997 3NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *HEET GAS LINE ANTIFREEZE 8/5/2005 0NFPA 31 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 507

Page 508: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

SNAP STARTING FLUID 6/20/2001 0NFPA 41 *MILD STEEL WELDING WIRE 1/1/2010 0NFPA 02MINRO-FIRE CAST 4/7/2006 1NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 0226C HI TEMP RED RTV SIL GASKET MKR 11OZ 8/8/2005 0NFPA 12CHEVRON SUPREME ANTIFREEZE COOLANT 1/12/2007 0NFPA 12FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12PRESTONE DEXCOOL 50/50 EXTENDED LIFE AF 1/20/2011 0NFPA 12PRESTONE EXTENDED LIFE 5/150 ANTIFREEZE 8/19/2010 0NFPA 12PUNCTURE SEAL GOO 6/26/2008 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 1250ML GASKET MAKER HYSTER 1/4/1994 1NFPA 123M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32CLEAN-R-CARB CARBURETOR CLEANER 05081 10/26/2009 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 323M NRS RUBBER ADHESIVE 8/27/1996 0NFPA 42BATTERY TERMINAL PROTECTOR 7/20/2010 0NFPA 42K&W COPPER COAT AEROSOL 1/15/2009 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42CRC ZINC-IT INSTANT COLD GALVANIZE 5/30/2007 1NFPA 42THRUST QUICK STARTING FLUID 2/19/2009 2NFPA 42SELECT 700GS WELDING WIRE 1/9/2006 0NFPA 02 *HAVOLINE DEX-COOL EXT LIFE ANTI-FREEZE 8/10/2004 0NFPA 12 *DIESEL FUEL THERAPY INJECTOR CLNER PLUS 10/5/2005 0NFPA 22 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *LEAD ACID BATTERY WET, FILLED WITH ACID 11/29/2010 2NFPA 03GUARDIAN VALVE-REGULATED LEAD/ACID,... 4/1/1996 2NFPA 13LEAD/ACID STORAGE BATTERY 3/3/1997 2NFPA 13LEAD/ACID STORAGE BATTERY 1/1/1999 2NFPA 13HI-POINT 90 4/19/1996 2NFPA 23

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 508

Page 509: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

RUBBER ADHESIVE 3/9/2003 0NFPA 23 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01HD LITH 2 GREASE 6/3/1992 0not given 11SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31DOT 3 HEAVY DUTY BRAKE FLUID 9/30/2009 0not given 121 SHOT LETTERING ENAMEL PAINTS 10/2/2007 Nnot given NN1 SHOT REDUCER 10/2/2007 Nnot given NN278 PLASTI-KOTE BATTERY TERM COATING 12/11/2008 Nnot given NNADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNALUMI-ARC ELECTRODE 3-32, 14150000 10/16/1995 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBETASEAL ONE 10/7/2008 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCC 100+ PARTS WASHING SOLVENT 12/2/1994 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCLIMAX 400A 7/15/2008 Nnot given NNCRC 2-26 AEROSOL 12/26/1995 Nnot given NNDAVISON BLU INDICATNG GEL GR.13,42,43,44 1/1/1990 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDUPLEX BRAKE FLUID 6/24/1998 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNER 70S6 WELDING WIRE 3/1/2007 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNEXXON GEAR OIL GX 85W-140 7/23/1992 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHF CONTACT CLEANER (AEROSOL) 2125 6/21/1994 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 509

Page 510: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

LITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPLASTI-KOTE BATTERY CLEANER 10/26/2006 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSEA FOAM MOTOR TREATMENT TRANS TUNE 1/1/2010 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

HI-POINT 90 4/19/1996 2NFPA 23

Tradename MSDS Date HMIS/NFPA Health Flam React

Organic Peroxide

AIR, COMPRESSED 3/9/1996 0NFPA 00M-5, 0-5, SIGMA-5 10/1/1997 0NFPA 00OXYGEN 10/1/1997 0NFPA 00STARGOLD C-25 SHIELDING GAS MIX 10/1/1997 0NFPA 01NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02HI-POINT 90 4/19/1996 2NFPA 23

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FREE ALL DEEP PENETRATING OIL AEROSOL 2/1/2006 0HMIS 41METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12AT-205 RE-SEAL 3/31/2008 0HMIS 22KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 510

Page 511: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42VINYL & FABRIC, MEDIUM GRAY 11/28/2010 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *KRYLON HIGH HEAT & RADIATOR PAINT BLACK 4/5/2012 0HMIS 32 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *ES COMPLEAT OAT 50/50 PREDILUTED ANTIFRZ 4/27/2010 0HMIS 13ES OPTIMAX EG CONCENTRATE 4/23/2006 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *MINERAL SPIRITS 8/1/1996 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *ES OPTIMAX EG PREMIX 4/23/2006 0NFPA 1150 ML BEARING MOUNT GRADE B 1/3/1995 1NFPA 11ADHESIVE/SEALANT 271 1/22/1996 1NFPA 11CHEVRON SUPREME ANTIFREEZE COOLANT 1/12/2007 0NFPA 12FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12PRESTONE DEXCOOL 50/50 EXTENDED LIFE AF 1/20/2011 0NFPA 12PRESTONE EXTENDED LIFE 5/150 ANTIFREEZE 8/19/2010 0NFPA 1250ML GASKET MAKER HYSTER 1/4/1994 1NFPA 12WIRE DRYER 3/6/2008 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 323M NRS RUBBER ADHESIVE 8/27/1996 0NFPA 42ACRA SEAL PLASTIC SPRAY & IGNITION 2/27/2008 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42SELECT 700GS WELDING WIRE 1/9/2006 0NFPA 02 *HAVOLINE DEX-COOL EXT LIFE ANTI-FREEZE 8/10/2004 0NFPA 12 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 511

Page 512: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

GUARDIAN VALVE-REGULATED LEAD/ACID,... 4/1/1996 2NFPA 13RUBBER ADHESIVE 3/9/2003 0NFPA 23 *ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNER 70S6 WELDING WIRE 3/1/2007 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NNSEA FOAM MOTOR TREATMENT TRANS TUNE 1/1/2010 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *

SP-30 SOLDERING FLUX 3/16/2009 0HMIS 01WATER SOLUBLE DEODORIZER 11/1/1993 0HMIS 01SODER-WICK ROSIN 2/16/2010 1HMIS 01NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MEGA BLACK SILICONE 11/6/2008 0HMIS 11 *LOCTITE SUPERFLEX RED RTV SILICONE ADH 7/25/2006 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12MAGNUM INSTANT GAS TANK RESIN 1/18/2007 1HMIS 12DIESEL GUARD LOW POUR PLUS 100 9/27/2005 0HMIS 22ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *AIR BRAKE SYSTEM ANT-FREEZE RUST GUARD 1/31/2006 0HMIS 33AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *50 ML BEARING MOUNT GRADE B 1/3/1995 1NFPA 11ADHESIVE/SEALANT 271 1/22/1996 1NFPA 11RED-KOTE LIQ FUEL TANK LINER 8/30/2011 0NFPA 21VOLTZ 12/7/1995 0NFPA 21SNAP STARTING FLUID 6/20/2001 0NFPA 41 *MINRO-FIRE CAST 4/7/2006 1NFPA 02

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 512

Page 513: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Sensitize

26C HI TEMP RED RTV SIL GASKET MKR 11OZ 8/8/2005 0NFPA 12FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12PRESTONE DEXCOOL 50/50 EXTENDED LIFE AF 1/20/2011 0NFPA 12PRESTONE EXTENDED LIFE 5/150 ANTIFREEZE 8/19/2010 0NFPA 1250ML GASKET MAKER HYSTER 1/4/1994 1NFPA 123M CC-2 PREP KIT (CABLE CLEANER) 4/2/1999 0NFPA 22FORM A GASKET #2 SEALANT 10/28/2010 0NFPA 22FORM-A-GASKET #2 SEALANT, 80009 4/23/1997 0NFPA 22QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SELECT 700GS WELDING WIRE 1/9/2006 0NFPA 02 *ADALOX OR METALITE CAP 6/24/1999 Nnot given NN

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21RIPPER ONE 2/15/2005 2HMIS 02MAGNUM INSTANT GAS TANK RESIN 1/18/2007 1HMIS 12DIESEL GUARD LOW POUR PLUS 100 9/27/2005 0HMIS 22AUTO TRUCK DE-ICER 4/4/2003 0HMIS 22 *KRYLON BATTERY PROTECTOR 4/9/2009 0HMIS 42 *ES COMPLEAT OAT 50/50 PREDILUTED ANTIFRZ 4/27/2010 0HMIS 13ES OPTIMAX EG CONCENTRATE 4/23/2006 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AIR BRAKE SYSTEM ANT-FREEZE RUST GUARD 1/31/2006 0HMIS 33HEAVY DUTY GASKET REMOVER 2/29/2008 0HMIS 34 *MINERAL SPIRITS 8/1/1996 0NFPA 20DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *STARLICIDE TECHNICAL 2/2/2004 0NFPA 01ES OPTIMAX EG PREMIX 4/23/2006 0NFPA 11BATTERY TERMINAL CLEANER 10/9/2008 0NFPA 21RED-KOTE LIQ FUEL TANK LINER 8/30/2011 0NFPA 21SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 513

Page 514: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

XTREME BLUE -20 WWF 6/13/2005 0NFPA 31HEET GAS LINE ANTIFREEZE 8/5/2005 0NFPA 31 *SNAP STARTING FLUID 6/20/2001 0NFPA 41 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 0226C HI TEMP RED RTV SIL GASKET MKR 11OZ 8/8/2005 0NFPA 12CHEVRON SUPREME ANTIFREEZE COOLANT 1/12/2007 0NFPA 12FORM A GASKET #1 SEALANT 6/9/2010 0NFPA 12PRESTONE DEXCOOL 50/50 EXTENDED LIFE AF 1/20/2011 0NFPA 12PRESTONE EXTENDED LIFE 5/150 ANTIFREEZE 8/19/2010 0NFPA 12BATTERY TERMINAL PROTECTOR 7/20/2010 0NFPA 42PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42HAVOLINE DEX-COOL EXT LIFE ANTI-FREEZE 8/10/2004 0NFPA 12 *DIESEL FUEL THERAPY INJECTOR CLNER PLUS 10/5/2005 0NFPA 22 *3M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *GUARDIAN VALVE-REGULATED LEAD/ACID,... 4/1/1996 2NFPA 13RUBBER ADHESIVE 3/9/2003 0NFPA 23 *DUPLEX BRAKE FLUID 6/24/1998 Nnot given NNGASKET REMOVER AEROSOL 3/17/2006 Nnot given NN

ACETYLENE 6/30/1994 3NFPA 41ACETYLENE 10/1/1997 3NFPA 41

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11MEGA BLACK SILICONE 11/6/2008 0HMIS 11 *RIPPER ONE 2/15/2005 2HMIS 02LOCTITE SUPERFLEX RED RTV SILICONE ADH 7/25/2006 0HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *26C HI TEMP RED RTV SIL GASKET MKR 11OZ 8/8/2005 0NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 514

Page 515: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

LEAD ACID BATTERY WET, FILLED WITH ACID 11/29/2010 2NFPA 03ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 515

Page 516: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Vehicle Maintenance

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 516

Page 517: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01SULFURIC ACID STANDARD SOLUTION 0.10N 10/21/1998 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *PHOSPHATE BUFFER SOLUTION 7/18/1996 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01EDTA TITRANT, 0.035N 11/6/1996 0NFPA 01PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31MANVER 2 HARDNESS INDICATOR 9/12/1995 0NFPA 02BUFFER SOLUTION HARDNESS 1 5/2/1996 0NFPA 12

Tradename MSDS Date HMIS/NFPA Health Flam React

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 517

Page 518: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Carcinogen

AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SULFURIC ACID SOLUTION 2/15/1996 2NFPA 03ADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNBUFFER SOLUTION TISAB (SB1754) 9/2/1997 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21HP 51626A INK CARTRIDGE 8/1/1997 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PRAESTOL K 274 FLX FLOCCULANT 4/26/2011 0NFPA 10DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32DRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNRED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Combustible Liquid

SUPER FRIENDLY AIRIT/FREEZEIT 1/2/1997 0HMIS 01NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Compressed Gas

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Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 518

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Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Compressed Gas

KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31CALIBRATION CHECK GAS 1/1/2006 Nnot given NNNATURAL GAS 4/5/1999 Nnot given NN

CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01SULFURIC ACID STANDARD SOLUTION 0.10N 10/21/1998 0HMIS 01ZETAG 7878 10/24/2001 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11OMNITREX BLUE 6/26/2002 0HMIS 01 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CHEMTREAT CL3857 8/16/2011 0HMIS 02QUADRASPERSE CL4898 2/3/2009 1HMIS 02PPG ACCU-TAB SI TABLETS 12/30/1992 2HMIS 02TRASAR 23265 11/12/2001 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12BUCKMAN LABORATORIES BROMINE 4/30/2007 1HMIS 03CAUSTIC POTASH, LIQUID, 30-60% 3/20/2003 1HMIS 03CAUSTIC SODA LIQUID 3/10/2006 1HMIS 03

Tradename MSDS Date HMIS/NFPA Health Flam React

Corrosive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 519

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Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

CAUSTIC SODA LIQUID RAYON 50% 3/10/2006 1HMIS 03SODIUM HYDROXIDE SOLUTION 50% 4/1/2002 1HMIS 03CAUSTIC POTASH-LIQUID (ALL GRADES) 1/1/1998 2HMIS 03CAUSTIC SODA ANHYDROUS (ALL GRADES) 1/1/1998 2HMIS 03MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03SULFURIC ACID 5/1/2007 2HMIS 03CAUSTIC POTASH-LIQUID (ALL GRADES) 5/14/2004 2HMIS 03 *PHOSPHATE BUFFER SOLUTION 7/18/1996 0NFPA 00TRASAR TRAC 104 3/14/2006 0NFPA 01SULFURIC ACID .6N, R-0736 5/1/1996 1NFPA 01SULFURIC ACID N, R-0686 5/1/1996 1NFPA 01MICROBIOCIDE C2106 3/1/1997 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 3/27/1998 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 6/1/2004 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ACID STARCH INDICATOR POWDER, R-0725 5/1/1996 2NFPA 02BUFFER SOLUTION HARDNESS 1 5/2/1996 0NFPA 12NALCO 8357 6/10/2005 0NFPA 12BIO-TROL 88P 11/21/1996 1NFPA 12SLIMICIDE C-77P 11/20/1996 1NFPA 12NALCO STABREX ST70 2/15/1999 0NFPA 03CAUSTIC POTASH SOLUTION 1/15/1996 1NFPA 03CAUSTIC SODA SOLUTION 9/4/1997 1NFPA 03CAUSTIC SODA, 50% AND WEAKER SOLUTIONS 1/15/1996 1NFPA 03FERRIC ION SOLUTION 5/7/1996 1NFPA 03NALCO 1307 LOW FREEZE CAUSTIC 12/19/1994 1NFPA 03POTASSIUM HYDROXIDE SOLUTION 8N 7/8/1997 1NFPA 03PRESTOCHLOR CALCIUM HYPOCHLORIT GRANULES 10/4/2007 1NFPA 03SULFURIC ACID 11/1/1993 2NFPA 03SULFURIC ACID SOLUTION 2/15/1996 2NFPA 03NALCO 7338 BIOCIDE 3/18/2009 0NFPA 13CHEMTREAT C2189T 8/1/2011 1NFPA 13DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00CALCIUM HYPOCHLORITE-65% 10/12/1995 Nnot given NNCONTRAD NF 8/12/1999 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 520

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Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Corrosive

DURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNFREESTYLE BROMINE TAB 6/23/2006 Nnot given NNLIQUID CALCIUM CHLORIDE 3/1/1993 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 7/14/2008 Nnot given NNSULFURIC ACID 1/26/1995 Nnot given NNSULFURIC ACID 9/9/2002 Nnot given NN

WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *CRAZY CLEAN 1/3/2012 0NFPA 11PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 521

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Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Flammable

LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SULFURIC ACID 11/1/1993 2NFPA 03MOLYVER 3 MOLYBDENUM REAGENT 11/20/2000 0NFPA 13 *SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31BAN-AIRE 11/5/1997 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNX STAMPER INK Y-30 6/14/1997 Nnot given NN

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42CRAZY CLEAN 1/3/2012 0NFPA 11SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *SULFURIC ACID 11/1/1993 2NFPA 03SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31

Tradename MSDS Date HMIS/NFPA Health Flam React

Flammable Gas

ANION EXCHANGE RESIN, SPG1P-OH 1/1/1998 0HMIS 00CATION EXCHANGE RESIN 9/1/2000 0HMIS 00EARTH-WISE ICE MELTER 10/1/2006 0HMIS 00

Tradename MSDS Date HMIS/NFPA Health Flam React

Irritant

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 522

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Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

GOJO HAND MEDIC ANTISEPTIC SKIN TREATMNT 12/7/1999 0HMIS 00SLIME SUPER DUTY TIRE SEALANT 10/20/2003 0HMIS 00SODIUM BICARBONATE 11/12/2008 0HMIS 00TOUGH JOB 1/1/1985 0HMIS 00GOJO NATRL ORNG LOTION HND CLNR W/PUMICE 10/13/1999 0HMIS 10NILOMIST, BABY POWDER 3/5/2008 0HMIS 10PROPYLENE GLYCOL USP/EP K TECH 2/18/2008 0HMIS 10ULTRA URINAL SCREEN 12/3/2009 0HMIS N0222-WP SPRA-BUFF 12/3/1997 0HMIS 01ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01BAFCO FILM FREE GLASS CLEANER 4/17/1998 0HMIS 01CHEMTREAT CL2880 1/10/2011 0HMIS 01CONFIDENCE PLUS CLEANER 3/30/2000 0HMIS 01INSTAZORB 2/21/2003 0HMIS 01KNUCKLE UNDER ORANGE 2/9/2001 0HMIS 01OMNITREX 6/26/2002 0HMIS 01ORANGE FURY 6/7/2001 0HMIS 01ORANGE GLO 2 IN 1 FURNITURE POLISH 2/14/2012 0HMIS 01RENOWN FLOOR FINISH 1/1/1997 0HMIS 01ROUGH & READY 8/18/2000 0HMIS 01SDT TABLETS 10/27/2004 0HMIS 01SULFURIC ACID STANDARD SOLUTION 0.10N 10/21/1998 0HMIS 01THOROGARD 6/26/2002 0HMIS 01BAFCO LEMON DISINFECTANT 2/11/1997 0HMIS 11MAGNAFLOC 90L 8/28/2002 0HMIS 11MAGNAFLOC 90L 9/20/2002 0HMIS 11NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11QUINTOLUBRIC 822-220 1/31/2000 0HMIS 11ZETAG 7878 10/24/2001 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21BLUE WINDOW CLEANER 4/14/2006 0HMIS 21NATURAL TOUCH HAND CLEANER 2/24/2005 0HMIS 21NILOTRON AEROSOLS METERED 1/21/2009 1HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 523

Page 524: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

MISTY DRY DEODORIZERS TRANL SNAPPY APPLE 12/3/2007 0HMIS 31PURELL INSTANT HAND SANITIZER 10/15/2007 0HMIS 31REMINISCENT - METERED 12/9/1999 1HMIS 31SUVA 124 10/20/1995 1HMIS N1FLAME RESISTANT FOIL (FSK-25) BLDG INSUL 2/6/1997 0HMIS 01 *OMNITREX BLUE 6/26/2002 0HMIS 01 *TRAFFIC PAINT YELLOW 9/28/2006 0HMIS 11 *AD-2000 CLEANER DEGREASER 8/18/2009 0HMIS 02CARGO THERMOSTEEL 2/16/2010 0HMIS 02CHEMTREAT CL3857 8/16/2011 0HMIS 02METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02RINSEAWAY 9/24/1997 0HMIS 02SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 0HMIS 02TA-0345, LATEX MODIFIED THINSET MORTAR 9/5/1997 0HMIS 02QUADRASPERSE CL4898 2/3/2009 1HMIS 02PPG ACCU-TAB SI TABLETS 12/30/1992 2HMIS 02BUFFER SOLUTION HARDNESS 1 PH 10.1 8/11/2000 0HMIS 12DPD FREE CHLORINE REAGENT 10/15/2009 0HMIS 12DPD TOTAL CHLORINE REAGENT 4/3/2007 0HMIS 12TRASAR 23262 COOLING WATER TREATMENT 10/13/2002 0HMIS 12TRASAR 23265 11/12/2001 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12SPRAYON BLAST'EM WASP & HORNET KILLER 5/21/2007 0HMIS 22EVERCLEAN ALL PURPOSE CLEANER, 180-2081 1/28/2000 0HMIS 32UNI-PAINT PX-30 BROAD MARKER 2/1/2007 0HMIS 32KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42SW DTM ACRL GLS COAT.(WATERBORNE)B66T104 10/13/1999 0HMIS 02 *SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 10/5/1999 0HMIS 02 *ULTREX PLUS PBB 9/3/2010 0HMIS 02 *HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 524

Page 525: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *SUPEROX 709 3/3/1994 3HMIS 32 *BRITE-MARK H2O BLACK 4/2/2008 1HMIS 42 *D-SPERSE-X 6/3/1996 0HMIS 03DICATON 6/3/1996 0HMIS 03BUCKMAN LABORATORIES BROMINE 4/30/2007 1HMIS 03CAUSTIC POTASH, LIQUID, 30-60% 3/20/2003 1HMIS 03CAUSTIC SODA LIQUID 3/10/2006 1HMIS 03CAUSTIC SODA LIQUID RAYON 50% 3/10/2006 1HMIS 03SODIUM HYDROXIDE SOLUTION 50% 4/1/2002 1HMIS 03CAUSTIC POTASH-LIQUID (ALL GRADES) 1/1/1998 2HMIS 03CAUSTIC SODA ANHYDROUS (ALL GRADES) 1/1/1998 2HMIS 03MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03LN-903 LIQ NAILS MULTI-PURP CONSTR ADH 2/12/2009 0HMIS 13PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13OMNI GARD 6/26/2002 0HMIS 03 *OMNI-GARD 2/2/2004 0HMIS 03 *CAUSTIC POTASH-LIQUID (ALL GRADES) 5/14/2004 2HMIS 03 *AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *NICKEL-CADMIUM BATTERY PACKS 5/1/1995 NHMIS NNIODIDE IODATE REAGENT, R-0699 5/1/1996 0NFPA 00PHOSPHATE BUFFER SOLUTION 7/18/1996 0NFPA 00TITRATING SOLUTION, R-0823 5/1/1996 0NFPA 00TOTAL ALKALINITY INDICATOR, R-0645 5/1/1996 0NFPA 00NALCOLYTE 8105 COAGULANT 4/17/1996 0NFPA 10NALPREP III PRE TREATMENT 4/3/1997 0NFPA 10PRAESTOL K 274 FLX FLOCCULANT 4/26/2011 0NFPA 10PROPYLENE GLYCOL INDUSTRIAL GRADE 8/13/2003 NNFPA N0DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *3M BRAND ROOFING GRANULES 1/8/2004 0NFPA 01ABC DRY CHEMICAL EXTINGUISHER 7/1/1997 0NFPA 01BUFFER SOLUTION PH 10 AC258600000... 9/2/1997 0NFPA 01CALVER 2 CALCIUM INDICATOR 10/15/2009 0NFPA 01COATED ABRASIVES - RESIN OVER RESIN,... 11/22/1997 0NFPA 01

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 525

Page 526: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

EDTA TITRANT, 0.035N 11/6/1996 0NFPA 01NALCO ULTRION 8187 CLARIFICATION AID 7/9/1997 0NFPA 01SENTINEL 6/22/1998 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01TOILET BOWL DEODORIZER - ORG 9/22/1998 0NFPA 01TRASAR TRAC 104 3/14/2006 0NFPA 01SULFURIC ACID .12N, R-0687 5/1/1996 1NFPA 01SULFURIC ACID .6N, R-0736 5/1/1996 1NFPA 01SULFURIC ACID N, R-0686 5/1/1996 1NFPA 01CRAZY CLEAN 1/3/2012 0NFPA 11ECOSAFE V-300 9/23/2011 0NFPA 11NALCO 7751 6/23/1998 0NFPA 11NALCOLYTE 8102 COAGULANT 8/3/1994 0NFPA 11PG ALKYD ZONE MARKING WHT PAINT PP1418 9/12/2003 0NFPA 11POTASSIUM CHLORIDE REFERENCE ELECTROLYTE 5/21/2008 0NFPA 11HP C1823A PRINT CARTRIDGE 8/1/1997 0NFPA 21LUBECON SERIES I/M LUBRICANT 5/6/2014 0NFPA 21PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31C FRESH HEALTH C DIS 3/16/1999 0NFPA 41RAID FLYING INSECT KILLER 1/16/2004 0NFPA 41GLASS CLEANER 3/18/2008 0NFPA 11 *EDTA SOLUTION 1M 11/6/1996 0NFPA 02MANVER 2 HARDNESS INDICATOR 9/12/1995 0NFPA 02MICROBIOCIDE C2106 3/1/1997 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 3/27/1998 0NFPA 02SODA ASH (SODIUM CARBONATE, ANHYDROUS) 6/1/2004 0NFPA 02SODA ASH DENSE 8/11/2015 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02ACID STARCH INDICATOR POWDER, R-0725 5/1/1996 2NFPA 02BUFFER SOLUTION HARDNESS 1 5/2/1996 0NFPA 12MOLYVER 1 MOLYBDENUM REAGNT POWDR PILOWS 7/1/1999 0NFPA 12MOLYVER 1 MOLYBDENUM REAGNT POWDR PILOWS 7/24/1999 0NFPA 12NALCO 8357 6/10/2005 0NFPA 12SIMPLE GREEN D PRO 3 4/25/2013 0NFPA 12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 526

Page 527: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

BIO-TROL 88P 11/21/1996 1NFPA 12SLIMICIDE C-77P 11/20/1996 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32LU 204L DRY FILM GRAPHITE LUBRICANT 8/12/2012 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *NALCO STABREX ST70 2/15/1999 0NFPA 03CAUSTIC POTASH SOLUTION 1/15/1996 1NFPA 03CAUSTIC SODA SOLUTION 9/4/1997 1NFPA 03CAUSTIC SODA, 50% AND WEAKER SOLUTIONS 1/15/1996 1NFPA 03FERRIC ION SOLUTION 5/7/1996 1NFPA 03NALCO 1307 LOW FREEZE CAUSTIC 12/19/1994 1NFPA 03POTASSIUM HYDROXIDE SOLUTION 8N 7/8/1997 1NFPA 03PRESTOCHLOR CALCIUM HYPOCHLORIT GRANULES 10/4/2007 1NFPA 03SULFURIC ACID 11/1/1993 2NFPA 03SULFURIC ACID SOLUTION 2/15/1996 2NFPA 03NALCO 7338 BIOCIDE 3/18/2009 0NFPA 13CHEMTREAT C2189T 8/1/2011 1NFPA 13MOLYVER 3 MOLYBDENUM REAGENT 11/20/2000 0NFPA 13 *DURACELL NICKEL METAL HYDRIDE RCHRG BATT 7/1/2008 0not given 00MR. CLEAN MAGIC ERASER 7/1/2007 0not given 01SEBREEZE CITRUS BREEZE FRAG. AERO 5139 2/11/1999 0not given 31ADALOX OR METALITE CAP 6/24/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNAMI-GLAS/WOVEN FIBER GLASS 9/29/1993 Nnot given NNBACDOWN ANTIMICROBIAL HANDSOAP 1/26/1996 Nnot given NNBAN-AIRE 11/5/1997 Nnot given NNBUFFER SOLUTION TISAB (SB1754) 9/2/1997 Nnot given NNCALCIUM HYPOCHLORITE-65% 10/12/1995 Nnot given NNCALIBRATION CHECK GAS 1/1/2006 Nnot given NNCLEAN SWEEP SWEEPING COMPOUND 5/1/2001 Nnot given NNCONTRAD NF 8/12/1999 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 527

Page 528: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Irritant

DOWFROST HEAT TRANSFER FLUID 1/8/1999 Nnot given NNDRAGNET SFR TERMITICIDE/INSECTICIDE 2/29/2008 Nnot given NNDURACELL LITHIUM MANGANESE DIOXIDE BATT 11/24/2008 Nnot given NNDURACELL PROCELL PRO ALKALINE BATTERIES 11/6/2003 Nnot given NNENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNEXPO CLEANER 8/1/2005 Nnot given NNFERROIN INDICATOR SOLUTION 20551 4/30/1987 Nnot given NNFREESTYLE BROMINE TAB 6/23/2006 Nnot given NNHAND-AID 8/20/2003 Nnot given NNHI-HIDE EGGSHELL LIGHT BASE 8/17/1999 Nnot given NNLIQUID CALCIUM CHLORIDE 3/1/1993 Nnot given NNLITHIUM ION BATTERY CYL AND PRISM 1/5/2002 Nnot given NNOCLANSORB 3/15/1994 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNPROPYLENE GLYCOL INDUSTRIAL GRADE 3/2/2006 Nnot given NNSBS-46 PROTECTIVE CREAM, SOLVENT-RESIST. 7/1/1997 Nnot given NNSIGHT SAVERS BRAND ANTI-FOG LIQUID 3/19/2004 Nnot given NNSILVER OXIDE BATTERIES 3/5/2007 Nnot given NNSILVER OXIDE BATTERIES 6/28/2010 Nnot given NNSODA ASH BRICKETTES 8/27/1986 Nnot given NNSODIUM HYPOCHLORITE SOLUTION 7/14/2008 Nnot given NNSTANDARD CELL 7 PH BUFFER 6/28/1993 Nnot given NNSULFURIC ACID 1/26/1995 Nnot given NNSULFURIC ACID 9/9/2002 Nnot given NNTHIOSULFATE N-10, R-0007 6/27/1995 Nnot given NNBUFFER SOLUTION PH 4.0 (COLOR-CODED RED) 9/2/1997 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *RED ZONE MARKING PAINT 4/27/2009 Nnot given NN *

SUPEROX 709 3/3/1994 3HMIS 32 *

Tradename MSDS Date HMIS/NFPA Health Flam React

Organic Peroxide

Tradename MSDS Date HMIS/NFPA Health Flam React

Oxidizer

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 528

Page 529: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Oxidizer

PPG ACCU-TAB SI TABLETS 12/30/1992 2HMIS 02BUCKMAN LABORATORIES BROMINE 4/30/2007 1HMIS 03TITRATING SOLUTION, R-0823 5/1/1996 0NFPA 00NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02BIO-TROL 88P 11/21/1996 1NFPA 12SLIMICIDE C-77P 11/20/1996 1NFPA 12FERRIC ION SOLUTION 5/7/1996 1NFPA 03PRESTOCHLOR CALCIUM HYPOCHLORIT GRANULES 10/4/2007 1NFPA 03CHEMTREAT C2189T 8/1/2011 1NFPA 13CALCIUM HYPOCHLORITE-65% 10/12/1995 Nnot given NNFREESTYLE BROMINE TAB 6/23/2006 Nnot given NNSULFURIC ACID 9/9/2002 Nnot given NN

ADVANTAGE 900 S/G PASTEL BASE 5/4/2011 0HMIS 01ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11METALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 0HMIS 02LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 6/17/2003 0HMIS 42KRYLON INT/EXT TRUE BLUE 1910 6/17/2003 0HMIS 42KRYLON INT/EXT ULTRA FLAT BLACK 1602 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY GREEN 2012 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY POP ORNG 2410 6/17/2003 0HMIS 42KRYLON OSHA COLORS SAFETY PURPLE 1929 6/17/2003 0HMIS 42HI-HIDE SEMI-GLOSS LT BASE PAINT PP109 5/1/2013 0HMIS 12 *PORTERGUARD FD ALKYD ENAMEL PAINT PP2754 12/23/2007 0HMIS 22 *PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *EDTA TITRANT, 0.035N 11/6/1996 0NFPA 01PHENOLPHTHALEIN INDICATOR 3/1/2009 0NFPA 31QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22

Tradename MSDS Date HMIS/NFPA Health Flam React

Reproductive Toxin

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 529

Page 530: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Reproductive Toxin

AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER 8/17/1998 0NFPA 42ADVANTAGE 900 HIGH GLOSS DEEP BASE 1/26/1999 Nnot given NNADVANTAGE 900 HIGH GLOSS PASTEL BASE 6/4/1999 Nnot given NNBUFFER SOLUTION PH 4.0 (COLOR-CODED RED) 9/2/1997 Nnot given NN *ENSOLV-GCS 1/25/2013 Nnot given NN *

NILIUM SOFT LINEN DEODORIZER 6/10/2008 0HMIS 11ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11BACTERIA/ENZYME 6/29/1998 0HMIS 21WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21OMNITREX BLUE 6/26/2002 0HMIS 01 *DPD FREE CHLORINE REAGENT 10/15/2009 0HMIS 12DPD TOTAL CHLORINE REAGENT 4/3/2007 0HMIS 12LOCTITE 5452 THREAD SEALANT 5/29/2012 1HMIS 12ULTREX PLUS PBB 9/3/2010 0HMIS 02 *ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *MOLY VER 6 MOLYBDENUM REAGENT 4/6/2000 2HMIS 03AQUAPON 35 SAFETY YELLOW COMP A 4/29/2013 0HMIS 33 *AQUAPON HIGH BUILD WHITE BASE-CO A 1/9/2013 0HMIS 33 *LO VOC AQUAP COMP B 8/6/2013 0HMIS 33 *QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22AQUAPON HIGH BUILD COMPONENT B 8/6/2013 0NFPA 32PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 42NALCO 7338 BIOCIDE 3/18/2009 0NFPA 13ADALOX OR METALITE CAP 6/24/1999 Nnot given NNBUFFER SOLUTION PH 4.0 (COLOR-CODED RED) 9/2/1997 Nnot given NN *

Tradename MSDS Date HMIS/NFPA Health Flam React

Sensitize

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11

Tradename MSDS Date HMIS/NFPA Health Flam React

Toxic

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 530

Page 531: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Toxic

FE 348-M B-RESIN 3/1/2007 1HMIS 11WATERLESS HAND CLEANER WITH D-LIMONENE 11/17/2000 1HMIS 21PPG ACCU-TAB SI TABLETS 12/30/1992 2HMIS 02TRASAR 23265 11/12/2001 0HMIS 12SUPEROX 709 3/3/1994 3HMIS 32 *CAUSTIC POTASH-LIQUID (ALL GRADES) 1/1/1998 2HMIS 03PITT-TECH SATIN ACRYLIC ENAMEL 5/2/2013 1HMIS 13IODIDE IODATE REAGENT, R-0699 5/1/1996 0NFPA 00PHOSPHATE BUFFER SOLUTION 7/18/1996 0NFPA 00DIESEL FUEL NO. 2 7/31/2006 0NFPA 20 *BUFFER SOLUTION PH 10 AC258600000... 9/2/1997 0NFPA 01STARLICIDE TECHNICAL 2/2/2004 0NFPA 01SEBREEZE CITRUS BREEZE 9000 AEROSOL5160 10/2/2000 0NFPA 31XTREME BLUE -20 WWF 6/13/2005 0NFPA 31EDTA SOLUTION 1M 11/6/1996 0NFPA 02MANVER 2 HARDNESS INDICATOR 9/12/1995 0NFPA 02NICKEL METAL HYDRIDE BATTERIES 3/5/2007 1NFPA 02BUFFER SOLUTION HARDNESS 1 5/2/1996 0NFPA 12PRESTONE DE-ICER FOR WIND AND WIPERS 7/20/2005 0NFPA 423M HI-STRENGTH SPRAY ADHESIVE 90 4/4/2012 0NFPA 42 *CAUSTIC POTASH SOLUTION 1/15/1996 1NFPA 03CAUSTIC SODA SOLUTION 9/4/1997 1NFPA 03POTASSIUM HYDROXIDE SOLUTION 8N 7/8/1997 1NFPA 03SULFURIC ACID SOLUTION 2/15/1996 2NFPA 03NALCO 7338 BIOCIDE 3/18/2009 0NFPA 13SULFURIC ACID 1/26/1995 Nnot given NNSULFURIC ACID 9/9/2002 Nnot given NNBUFFER SOLUTION PH 4.0 (COLOR-CODED RED) 9/2/1997 Nnot given NN *

PPG ACCU-TAB SI TABLETS 12/30/1992 2HMIS 02SULFURIC ACID 9/9/2002 Nnot given NN

Tradename MSDS Date HMIS/NFPA Health Flam React

Unstable

Tradename MSDS Date HMIS/NFPA Health Flam React

Water Reactive

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 531

Page 532: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Water Reactive

ELASTOCOAT 3-5000 COATING-DK GRAY 12/11/2007 1HMIS 11FE 348-M B-RESIN 3/1/2007 1HMIS 11DPD TOTAL CHLORINE REAGENT 4/3/2007 0HMIS 12ELASTOSPRAY 8000A ISOCYANATE 3/17/2008 1HMIS 12 *CAUSTIC POTASH, LIQUID, 30-60% 3/20/2003 1HMIS 03CAUSTIC SODA LIQUID 3/10/2006 1HMIS 03CAUSTIC SODA LIQUID RAYON 50% 3/10/2006 1HMIS 03SODIUM HYDROXIDE SOLUTION 50% 4/1/2002 1HMIS 03CAUSTIC POTASH-LIQUID (ALL GRADES) 1/1/1998 2HMIS 03CAUSTIC SODA ANHYDROUS (ALL GRADES) 1/1/1998 2HMIS 03SULFURIC ACID 5/1/2007 2HMIS 03SULFURIC ACID .6N, R-0736 5/1/1996 1NFPA 01SULFURIC ACID N, R-0686 5/1/1996 1NFPA 01SODA ASH DENSE 8/11/2015 0NFPA 02BIO-TROL 88P 11/21/1996 1NFPA 12SLIMICIDE C-77P 11/20/1996 1NFPA 12QUICK SET 404 INSTANT ADHESIVE 1/26/1999 1NFPA 22SILVER-BRITE ALUMINUM PAINT 1/9/2013 1NFPA 32CAUSTIC POTASH SOLUTION 1/15/1996 1NFPA 03CAUSTIC SODA, 50% AND WEAKER SOLUTIONS 1/15/1996 1NFPA 03SULFURIC ACID 11/1/1993 2NFPA 03SULFURIC ACID SOLUTION 2/15/1996 2NFPA 03ENERGIZER BATTERY SILVER OXIDE-ZINC 1/1/2010 Nnot given NNENERGIZER LITHIUM MANGANESE DIOX BATTS 1/1/2010 Nnot given NNPRIMARY LITHIUM THIONYL CHLORIDE BATTERY 9/22/2004 Nnot given NNSULFURIC ACID 9/9/2002 Nnot given NN

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 532

Page 533: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Department: Water Treatment

As part of our Hazard Communication Training Program, we would like to inform you of the following materials that are used in your department. You can receive detailed MSDS information on any of these materials at any time upon request.

Signature Date Social Security Number or ID Number

Century Aluminum Of Kentucky, LLCCorporate Training Program.I certify that the chemical hazard information listed above has been reviewed with me as part of the

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 533

Page 534: Hazard Communication TrainingMETALATEX SEMI-GLOSS ACRYLIC COATING 5/7/2013 HMIS 200 SW EVRCLN INT LTX SATIN FIN.A97W41 P.WHT 7/9/1999 HMIS 200 TA-0345, LATEX MODIFIED THINSET MORTAR

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Monday, March 14, 2016

Hazard Communication Training

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 534