merlin resource estimate for the merlin project nt, australia...merlin resource estimate for the...

Merlin Resource Estimate for The Merlin Project

NT, Australia

Author: Tom Reddicliffe

Date: 18th October 2011 Report No: 11-067 Copies To: NADL

The contents of this Report remain the property of North Australian Diamonds Limited and may not be published in whole or in part, nor used in a company report without the written consent of the company.

TABLE OF CONTENTS

1 EXECUTIVE SUMMARY ...................................................................................................................11 1.1 Introduction .............................................................................................................................11

1.2 General Location and Geology ...................................................................................................11

1.3 Status of Mining Tenure..............................................................................................................12

1.4 Historic Resources ......................................................................................................................13

1.4.1 Previous Production .............................................................................................................13 1.4.2 Resource on Closure ...........................................................................................................14

1.5 History of Evaluation ................................................................................................................14

1.6 Modelling Approach .................................................................................................................14

1.6.1 Resource Volume.................................................................................................................14 1.6.2 Diamond Grade....................................................................................................................15 1.6.3 Diamond Value.....................................................................................................................15

1.7 Resource..................................................................................................................................15

1.8 Risks.........................................................................................................................................16

1.8.1 Tonnage ...............................................................................................................................16 1.8.2 Grade Determination............................................................................................................16 1.8.3 Geological Complexity .........................................................................................................17 1.8.4 Diamond Value.....................................................................................................................18

1.9 Recommendations ...................................................................................................................18

1.9.1 Pipe Geology........................................................................................................................18 1.9.2 Diamond Grades ..................................................................................................................18 1.9.3 Diamond Values...................................................................................................................18

1.10 Qualifications and Technical Experience of Author .................................................................19

2 GEOLOGY ....................................................................................................................................20 2.1 Introduction ..............................................................................................................................20

2.2 Regional Geology.....................................................................................................................20

2.3 Local Geology ..........................................................................................................................20

2.4 Deposit Type ............................................................................................................................23

2.4.2 Pipe Infill Sedimentary Rocks ..............................................................................................24 2.4.3 Age of Infill Sedimentary Rocks ...........................................................................................25 2.4.4 Kimberlite Facies..................................................................................................................26 2.4.5 Geochronology of Pipes.......................................................................................................29

3 EVALUATION TECHNIQUES AND METHODOLOGY ................................................................30 3.1 Introduction ..............................................................................................................................30

3.2 Deposit Style ............................................................................................................................30

3.2.1 Drilling ..................................................................................................................................30 3.2.2 Pitting ...................................................................................................................................31

3.3 Tonnage/Volume......................................................................................................................32

3.4 Diamond Grade........................................................................................................................32

3.5 Diamond Value.........................................................................................................................32

3.6 Security and Integrity ...............................................................................................................33

3.7 Sampling Techniques...............................................................................................................33

3.7.1 Core Samples ......................................................................................................................33 3.7.2 Rock Samples ......................................................................................................................34 3.7.3 Pit Samples 1m3...................................................................................................................34 3.7.4 Pit Samples 100m3...............................................................................................................35 3.7.5 ROM Samples......................................................................................................................35

3.8 Sample Collection ....................................................................................................................35


3.9 Sample Processing and Laboratory Procedures .....................................................................37


3.10 Surveying .................................................................................................................................38

3.11 Data Spacing and distribution ..................................................................................................38

4 EVALUATION 1993-1998 .............................................................................................................39 4.1 Introduction .................................................................................................................................39

4.2 Surface Delineation.....................................................................................................................39

4.3 Phase 1 - 1994 RC Bulk Sampling .............................................................................................39

4.4 Phase 2 - 1995 RC Bulk Sampling .............................................................................................39

4.5 Phase 3 - 1996 Bulk Sampling....................................................................................................39

5 MINING AND TESTING OPERATIONS 1998-2003.....................................................................41 5.1 Introduction .................................................................................................................................41

5.2 Summary of Past Operations......................................................................................................41

5.3 Resource on Closure ..................................................................................................................42

5.4 Results of Past Mining Operations..............................................................................................42

5.4.4 Sales ....................................................................................................................................43 5.5 Testing of PalSac ........................................................................................................................43

5.5.1 RIO LDC Drilling PalSac ......................................................................................................43 5.5.2 RIO Bulk Sample PalSac .....................................................................................................43

6 NADL TRIAL MINING AND EVALUATION 2005-2011 ................................................................45 6.1 Introduction .................................................................................................................................45

6.2 Resource Upgrade ......................................................................................................................45

6.3 Sorthouse Tailings Diamonds .....................................................................................................46

6.4 Diamond Liberation Testwork .....................................................................................................48

6.5 Trial Production 2006..................................................................................................................50

6.6 Trial Production 2009/2010.........................................................................................................52

6.7 Microdiamond Analyses..............................................................................................................54

6.7.1 Core Analyses......................................................................................................................54 6.7.2 1m3 Pit Samples...................................................................................................................54

7 RESOURCE ESTIMATION AND REPORTING............................................................................55 7.1 Introduction ..............................................................................................................................55

7.2 Geological Interpretation..........................................................................................................55

7.2.1 Spatial and Genetic Relationship of Pipes...........................................................................55 7.2.2 Pipe Geometry and Emplacement Controls.........................................................................55 7.2.3 Effects of Weathering...........................................................................................................55 7.2.4 Kimberlite Phases ................................................................................................................56

7.3 Moisture and Bulk Density ..........................................................................................................57

7.4 Estimation of Pipe Resources.....................................................................................................58

7.4.1 Pipe Geometry .....................................................................................................................58 7.4.2 Pipe Volumes/Tonnes..........................................................................................................58 7.4.3 Pipe Grade Models ..............................................................................................................59 7.4.4 Diamond Value.....................................................................................................................61

8 VOLUME MODEL ..............................................................................................................................62 8.1 Introduction .................................................................................................................................62

8.2 Methodology................................................................................................................................62

8.3 Pipe Volumes/Tonnes .................................................................................................................62

9 GRADE MODEL.................................................................................................................................63 9.1 Introduction .....................................................................................................................................63 9.2 Merlin Grade Models.......................................................................................................................63 9.3 Merlin Size-Frequency Distribution .................................................................................................64 9.4 Gawain Grade Model ......................................................................................................................64

9.4.1 RIO Records ........................................................................................................................64 9.4.2 Bulk Sample 2006 ................................................................................................................65 9.4.3 NADL 2006/2009/2010 ROM ...............................................................................................65 9.4.4 Grade Control Samples........................................................................................................65 9.4.5 Grade Model ........................................................................................................................65

9.5 Ywain Grade Model.........................................................................................................................65 9.5.1 RIO Records ........................................................................................................................65 9.5.2 Bulk Sample 2006 ................................................................................................................65 9.5.3 NADL 2006 ROM .................................................................................................................65 9.5.4 Grade Model ........................................................................................................................65

9.6 Excalibur Grade Model....................................................................................................................66 9.6.1 RIO Records ........................................................................................................................66 9.6.2 Grade Model ........................................................................................................................66

9.7 PalSac Grade Model .......................................................................................................................66 9.7.1 RIO Records Palomides.......................................................................................................66 9.7.2 RIO Records Sacramore......................................................................................................66 9.7.3 RIO LDC Drilling PalSac ......................................................................................................66 9.7.4 RIO Bulk Sample PalSac .....................................................................................................67 9.7.5 2009 Palomides Pit Cleanup................................................................................................67 9.7.6 Grade Model ........................................................................................................................67

9.8 Launfal Grade Model.......................................................................................................................67 9.8.1 RIO Records ........................................................................................................................67 9.8.2 Grade Model ........................................................................................................................67

9.9 Kaye Grade Model ..........................................................................................................................67 9.8.1 RIO Records ........................................................................................................................68 9.8.2 Bulk Sample 2006 ................................................................................................................68 9.8.3 NADL 2009/2010 ROM ........................................................................................................68 9.8.4 Grade Control Samples........................................................................................................68 9.8.5 Grade Model ........................................................................................................................68

9.10 Ector Grade Model ........................................................................................................................68 9.10.1 RIO Records ......................................................................................................................68

9.10.2 Grade Model ......................................................................................................................68 9.11 Gareth Grade Model .....................................................................................................................69

9.11.1 RIO Records ......................................................................................................................69 9.11.2 Grade Model ......................................................................................................................69

9.12 Bedevere Grade Model .................................................................................................................69 9.12.1 Grade Model ......................................................................................................................69

9.13 Tristram Grade Model ...................................................................................................................69 9.13.1 Grade Model ......................................................................................................................70

9.14 Summary of Grade Models ...........................................................................................................70 10 DIAMOND VALUATIONS ................................................................................................................71

10.1 Introduction ...............................................................................................................................71

10.2 RIO 1999-2003 Valuations........................................................................................................71

10.2.1 Valuations ..........................................................................................................................71 10.2.2 Diamond Quality.................................................................................................................71 10.2.3 Sales ..................................................................................................................................71

10.3 NADL 2005/2006 Valuation ..........................................................................................................71 10.3.1 Sorthouse Tails Valuation ..................................................................................................71 10.3.2 Gawain/Ywain ROM Valuation...........................................................................................72 10.3.3 Sales ..................................................................................................................................72

10.5 NADL 2008 Revaluation............................................................................................................72

10.6 NADL 2010 Valuation................................................................................................................72

10.7 Valuation Summary...................................................................................................................72

10.7 Value Model ..............................................................................................................................72

11 RESOURCE CLASSIFICATION ......................................................................................................74 11.1 Introduction ...............................................................................................................................74

11.2 Mining Factors and assumptions ..............................................................................................74

11.3 Metallurgical Test Work.............................................................................................................74

11.4 Mineral Resource Statement ....................................................................................................74

11.5 Mineral Resource Potential .......................................................................................................76

11.6 Discussion of relative accuracy/confidence ..............................................................................76

12 BIBLEOGRAPHY.............................................................................................................................78

LIST OF TABLES Table 1.1 Project Tenement Table 1.2 Summary of Total Production 1998-2003 Table 1.3 Reconstructed Summary of Past Mining Operations 1998-2003 Table 1.4 Inferred Resource Summary 2003 Table 1.5 Merlin Total Resource Table 2.1 Age of Merlin Fossils Table 2.2 Dimensions of Merlin Kimberlite Pipes Table 2.3 Thickness of Infill Sediments within the Merlin Kimberlite Pipes Table 2.4 Geochronology Table 4.1 Summary of Grades from Merlin Bulk Sampling Programme 1994 Table 4.2 Summary of Grades from Merlin Phase II Sampling Table 4.3 1996 Bulk Sample Results Table 5.1 Summary of Total Production 1998-2003 Table 5.2 Pre-constructed Summary of Past Mining Operations 1998-2003 Table 5.3 Inferred Resource Summary 2003 Table 5.4 Summary of Merlin Production Table 5.5 Carats Recovered per Pipe Table 5.6 Summary Site record of Production By Flitches 1999-2003 Table 5.7 Excalibur Sorthouse Sizing Record Table 5.8 Palomides Sorthouse Sizing Record Table 5.9 Sacramore Sorthouse Sizing Record Table 5.10 Launfal Sorthouse Sizing Record Table 5.11 Launfal North Sorthouse Sizing Record Table 5.12 Gawain Sorthouse Sizing Record Table 5.13 Ywain Sorthouse Sizing Record Table 5.14 Kaye Sorthouse Sizing Record Table 5.15 Ector Sorthouse Sizing Record Table 5.16 Gareth Sorthouse Sizing Record Table 5.17 Merlin Rejects Sorthouse Sizing Record Table 5.18 Size Distribution Comparison Table 5.19 Stones per Carat - Full Profile Table 5.20 Stones per Carat - Truncated Table 5.21 All Pipe Carats Table 5.22 All Pipe % Carat Contribution Per Size Table 5.23 All Pipe Values Table 5.24 All Pipes Price per Carat Table 5.25 All Pipes per Carat Contribution per Size Table 5.26 Production September 1999 Table 5.27 Production October 1999 Table 5.28 Production November 1999 Table 5.29 Production February 2000 Table 5.30 Production March 2000 Table 5.31 Production June 2000 Table 5.32 Production August 2000 Table 5.33 Production September 2000 Table 5.34 Production November 2000 Table 5.35 Production February 2001 Table 5.36 Production May 2001 Table 5.37 Production October 2001

Table 5.38 Production December 2001 Table 5.39 January 2001 Table 5.40 Excalibur Production and Valuation Table 5.41 Palomides Production and Valuation Table 5.42 Sacramore Production and Valuation Table 5.43 Launfal Production and Valuation Table 5.44 Launfal North Production and Valuation Table 5.45 Gawain/Ywain Special Parcel Table 5.46 Kaye Production and Valuation Table 5.47 Ector Production and Valuation Table 5.48 Gareth Production and Valuation Table 5.49 Pipe Summary Production and Valuation Table 5.50 Price per Carat per Pipe Table 5.51 All Pipes by Quality Table 5.52 All Pipes by Colour Table 5.53 Pipes by Sale Table 5.54 Merlin Summary Table 5.55 Diamond Exports 1999-2003 Table 5.56 PalSac LDC Drilling Programme 2001 Table 5.57 PalSal Bulk Sample RIO 2002 Table 6.1 Merlin Primary Resource 2005 Table 6.2 Reject Ore and Tailings Resource Table 6.3 Merlin Primary Resource 2008 Table 6.4 Sorthouse Rejects Samples Table 6.5 Merlin Sorthouse Rejects Diamond Fortnightly Recovery Table 6.6 Tails Size Distribution Table 6.7 Samples from ROM Pad Stockpiles 2005/2006 Table 6.8 Samples from Pits Table 6.9 Processing Schedule 2006 - Tonnes Processed Table 6.10 Processing Schedule 2006 - Carats Recovered Table 6.11 Processing by Quarter 2006 Table 6.12 Processing Summary 2006 Table 6.13 Production Trials by Pipe 2009/2010 Table 6.14 Production Trials Summary 2009/2010 Table 6.15 Merlin 2009-2010 Carat Recoveries Table 6.16 Merlin 2009-2010 Stone Recoveries Table 6.17 Grade Control Sample Results Table 7.1 Depth of Infill Sediments Table 7.2 Kimberlite Facies Table 8.1 Gawain Table 8.2 Ywain Table 8.3 Palsac Table 8.4 Launfal Table 8.5 Kaye Table 8.6 Ector Table 8.7 Gareth Table 8.8 Excalibur Table 8.9 Bedevere Table 8.10 Tristram Table 9.1 Merlin Production DTC Size Profile Table 9.2 Grade Model Average Size Frequency Distribution Tables Table 9.3 Gawain RIO ROM 1999-2003 Table 9.4 Gawain Comparison of Mined Flitches

Table 9.5 RIO Special Valuation Parcel Table 9.6 Gawain/NADL Bulk Sample 2006 Table 9.7 Gawain/NADL ROM 2006, 2009 and 2010 Table 9.8 Gawain Grade Control Samples 2010 Table 9.9 Summary of Gawain Processing Table 9.10 Gawain Model Grade Table 9.11 Ywain Sorthouse Sizing Record Table 9.12 Ywain Comparison of Mined Flitches Table 9.13. Ywain Special Parcel Table 9.14 Ywain Bulk Sample 2006 Table 9.15 Ywain/NADL 2006 ROM Table 9.16 Ywain Grade Model Table 9.17 Excalibur Sorthouse Sizing Record Table 9.18 Excalibur Comparison of Mined Flitches Table 9.19 Excalibur Production 1999/2003 Table 9.20 Excalibur Grade Model Table 9.21 Palomides Sorthouse Sizing Record Table 9.22 Palomides Comparison of Mined Flitches Table 9.23 Palomides Production 1999-2002 Table 9.24 Sacramore Sorthouse Sizing Record Table 9.25 Sacramore Comparison of Flitches Table 9.26 Sacramore Production 1999-2002 Table 9.27 LDC Drilling Recoveries Table 9.28 LDC Sizing Table 9.29 Palsac Bulk Sample RIO 2002 Table 9.30 2009 Palomides Pit Cleanup Table 9.31 Palsac Grade Model Table 9.32 Launfal Sorthouse Sizing Record Table 9.33 Launfal Comparison of Mined Flitches Table 9.34 Launfal Production 1999-20002 Table 9.35 Launfal Grade Model Table 9.36 Kaye Sorthouse Sizing Record Table 9.37 Kaye Comparison of Mined Flitches Table 9.38 RIO Production 1999-2001 Table 9.39 Kaye Bulk Sample 2005 Table 9.40 NADL/Kaye ROM 2009-2010 Table 9.41 Kaye Grade Control Samples Table 9.42 Kaye Grade Model Table 9.43 Ector Sorthouse Sizing Record Table 9.44 Ector Comparison of Mined Flitches Table 9.45 Ector Production 2000-2001 Table 9.46 Ector Grade Model Table 9.47 Gareth Sorthouse Sizing Record Table 9.48 Gareth Comparison of Mined Flitches Table 9.49 Gareth Production 2000-2002 Table 9.50 Gareth Grade Model Table 9.51 Bedevere Grade Table 9.52 Tristram Grade Table 9.53 NADL Grade Resource Model Table 9.54 Production Grade Models Table 9.55 Historic Mining Grades Table 10.1 Rio Production 1999-2003

Table 10.2 Rio 1999-2003 All Pipes by Quality Table 10.3 Rio 1999-2003 All Pipes by Colour Table 10.4 Pipes by Sale Table 10.5 Merlin Summary Table 10.6 Diamond Exports 1999-2003 Table 10.7 Sorthouse Tails Daimond Valuation Details Table 10.8 Valuation of Sorthouse Tails Diamonds Table 10.9 NADL Valuation 2006 Table 10.10 Summary of NADL Sales 2006/2007 Table 10.11 2008 NADL Valuation Table 10.12 NADL 2010 Valuation Table 10.13 Summary of Valuations Table 11.1 Mineral Resource Table 11.2 Production Resources

LIST OF FIGURES Figure 1.1 Location of Merlin Mining Lease Figure 1.2 Kimberlite Pipes on the Merlin Mining Lease Figure 2.1 Satellite Image of the Merlin Plateau Figure 2.2 Tuffisitic Kimberlite Figure 2.3 Pelletal Tuffisitic Kimberlite Figure 2.4 Micaceous Tuffisitic Kimberlite Figure 2.5 Tuffisitic Kimberlite Figure 2.6 Tuffisitic Kimberlite Breccia Figure 3.1 1m3 sample taken from Gawain Figure 3.2 100m3 sample taken from Gawain Figure 6.1 Reprocessing of Sorthouse Tailings Figure 6.2 HPGR Crushing Unit 50tph Figure 6.3 Location of Reject Samples on ROM pad

LIST OF PLANS Plan 1 Gawain/Ywain Plan 2 Palsac Plan 3 Launfal Plan 4 Kaye/Ector Plan 5 Gareth Plan 6 Excalibur Plan 7 Bedevere Plan 8 Tristram

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1 EXECUTIVE SUMMARY

1.1 Introduction The Merlin diamond field was discovered in 1993 by Ashton Mining Limited and after limited evaluation trial mining commenced in late 1998 as a means of evaluating the diamond field as it was deemed too expensive to continue with testing due to the number of pipes involved and their small size. The trial mining operations continued for 5 years and ceased in 2003 with a total of 507,000 carats of diamonds being produced and sold during this period. In late 2000 Rio Tinto acquired the project following the takeover of Ashton Mining Limited and continued the trial mining until 2003 when operations ceased. NADL acquired the project from Rio Tinto in 2004 after they were unable to sell the project as a going concern. Since that time NADL has been evaluating the project with a view to recommencing commercial mining operations.

1.2 General Location and Geology The Merlin kimberlite field is located in the Batten region of the Northern Territory, Australia, 100km south of the township of Borroloola (Figure 1.1). The field comprises fourteen kimberlite intrusions distributed in four discrete clusters (Figure 1.2). The two largest kimberlite pipes within the field, E.Mu1 and E.Mu2, were discovered in 1985 by CRA Exploration. The remaining kimberlite pipes were discovered by Ashton Mining seven years later. The pipes are dated at 360 Ma, and represent the preserved upper diatreme facies of the kimberlite system. Structurally the pipes are located on interpreted tension fractures spatially associated with the regional northwest trending Calvert Fault.

Figure 1.1 Location of Merlin Project

MERLIN

12

Figure 1.2 Merlin Project Area

1.3 Status of Mining Tenure The Merlin diamond deposit is secured under a Mining Lease which was granted in 1998 for a period of 20 years. The detail of this tenure is shown in Table 1. Table 1.1 Project Tenement

Lease Project Lease Status

Grant Date Expiry Date

Area (Ha) NADL Interest

MLN1154 Merlin Granted 15/6/98 31/12/22 2350 100% The project is subject to two gross revenue royalties totalling 1.75%, details are as follows;

R.M. Biddlecombe Royalty – This royalty of 0.75% is payable to prospector R. M. Biddlecombe who was the original holder of EL6424 which preceded the application for MLN1154. Ashton Mining (Rio Tinto) – This royalty of 1% is payable to Ashton Mining Limited now owned by Rio Tinto and was acquired by them as part of the conditions of sale when NADL Acquired the project.

The project also operates under a Native Title agreement with relevant Traditional Owners who have traditional links to the area. This agreement allows for a Nett Profit Interest to be paid annually at the rate of 2% and scaling up to 4% for a more profitable operation and with a minimum annual payment of $10,000 if operations are scaled back. Renegotiation of this agreement has been proposed by the Northern Land Council who administers the agreement.

MMiinniinngg LLeeaassee

BBeeddeevveerree Northern Cluster

KKaayyee GGaarreetthh EEccttoorr

Southern Cluster

TTrriissttrraamm

EExxccaalliibbuurr PPeerrcceevvaall

LLaauunnffaall PPaallSSaacc

Central Cluster

YYwwaaiinn GGaawwaaiinn

13

1.4 Historic Resources 1.4.1 Previous Production The Merlin mining operation commenced in 1998 and ceased mid 2003. In total 2,237,447 tonnes of kimberlite were processed, with 507,000 carats of diamonds recovered. The operations are summarised in Table 1.1. Table 1.2: Summary of Total Production 1998 - 2003

PIPE PROCESS WET TONNES

GRADE CT/T CARATS RECOVERED

Excalibur 365,398 0.36 131,346 Palomides 258,657 0.19 48,613 Sacramore 258,633 0.18 46,599 Launfal/ Launfal North 371,422 0.19 71,887 Gareth 160,864 0.19 30,043 Gawain 103,795 0.34 35,493 Ywain 14,422 0.61 8,771 Kaye 188,875 0.09 16,760 Ector 288,455 0.07 18,970 Tailings/other 15,779 TOTAL 2,010,521 0.21 424,261

Ref: Mine management Plan 2002-2003 The numbers in Table 1.1 were reported in mine records and are at odds with other reports of carats sold and recorded process tonnes. These are provided in the following Table 1.2, and provide a more accurate assessment of the mining activities. Table 1.3: Reconstructed Summary of past mining operations 1998 - 2003

*Excludes Tailings Ref: Summary of Mining and Evaluation 1999-2007.

PIPE MINED BCM

PROCESS TONNES

PROCESS BCM

CARATS RECOVERED

GRADE CT/T

Excalibur 174,852 368,845 171,862 125,390 0.34 Palomides 195,529 373,458 180,354 66,771 0.18 Sacramore 174,431 351,976 170,572 59,409 0.17 Launfal 186,981 345,895 158,516 67,326 0.19 Launfal North 28,770 58,594 27,141 18,158 0.31 Gareth 94,803 191,372 90,024 46,810 0.25 Gawain 49,536 103,795 49,536 35,954 0.35 Ywain 6,890 14,422 14,422 8,567 0.59 Kaye 90,548 185,648 87,615 20,364 0.11 Ector 114,051 243,442 114,051 19,056 0.80 Tailings/other 137,106 52,420 39,625 TOTAL 1,116,391 2,237,447* 1,108,981 507,000 0.23

14

1.4.2 Resource on Closure On closure of the project in 2003 the remaining insitu resources were reported as follows; Table 1.4: Inferred Resource Summary 2003

Pipe From RL

To RL

BD t/m BCM Tonnes Grade ct/t

Carats

PalSac 130 -147 2.32 2,642,700 6,141,000 0.19 1,146,000 Launfal 123 -75 2.29 666,300 1,453,000 0.21 312,000 Launfal Nth 123 50 1.79 19,800 35,000 0.26 9,000 Kaye 160 7 2.32 1,318,100 3,125,000 0.09 286,000 Excalibur 100 -50 2.22 267,700 594,000 0.33 196,000 Gareth 153 51 2.11 190,300 402,000 0.20 80,000 TOTAL 2.19 5,104,900 11,750,000 0.17 2,029,000

Ref: Mine management Plan 2002-2003

1.5 History of Evaluation The following is a short summary of the history of the project. 1986 E.Mu pipes discovered by CRAE. 1989 Ashton Exploration commences. 1991-1993 Merlin pipes discovered. 1994-1996 Evaluation testing. 1996-1997 Feasibility Studies. 1998 Mine development and commencement of mining operations. 2000 Rio Tinto acquires project following takeover of Ashton Mining. 2001 PalSac development options evaluated. LDC drilling program. 2002 Merlin project offered for sale as a going concern, but no offer accepted. 2003 Mine closed having produced 507,000cts from 2.24Mt ore. 2004 NADL acquires Merlin project from Rio Tinto. 2005 Reprocessing of sorthouse tails produces 13,550cts. HPGR testwork highlights liberation issues. 2006 Pilot plant established. Trial production produces 11,812cts from 24,958 tonnes. Scoping study completed. 2007-2008 Resource definition drilling increases resources. 2009-2010 Pilot plant upgraded to incorporate HPGR and Optical Sorter. Trial production produces 10,600cts diamonds. Pre-feasibility study completed. Additional resource definition drilling increases resources. 2011 Commencement of Detailed Feasibility Study.

1.6 Modelling Approach Modelling of the resource comprises three components namely, resource volume, diamond grade and diamond value. The basis of these models is as follows;

1.6.1 Resource Volume The volume of the resource is based on lithological boundaries which have been identified by drilling and reasonable assumptions as to the formation and nature of the kimberlite bodies. These assumptions are that kimberlite bodies are volcanic intrusives and hence have depth continuity and that the wall rock contacts are invariably sharp as opposed to diffuse and gradational.

15

1.6.2 Diamond Grade The diamond grade models are based on plant recovered grades and hence are sensitive to liberation issues, lower screen sizes, plant recovery efficiency, final recovery techniques utilised, and security. Hence the measured grades are not a measure of total diamond content but rather a reflection of what may reasonably be recovered from a processing operation using similar processing and recovery methodology. The commercial diamond grade is that which would be recovered from a commercial mining operation and hence is subject to commercial operating considerations. Consequently the commercial diamond grade can be somewhat lower than the recoverable diamond grade determined by sampling testwork. Detailed diamond grade models are established based on the contribution to grade of various diamond size fractions. Inherent in grade assessment is the assumption that diamonds are homogenously distributed throughout any particular kimberlite facies and that this distribution does not vary with increasing depth within the pipe. While these assumptions can be tested at surface interpolation at depth is solely reliant on the interpretation of microdiamonds recovered from small drill core samples, since with the exception of PalSac no pipes have been tested for their commercial diamond content below their currently mined depth.

1.6.3 Diamond Value Any recovered diamond parcel represents only a snapshot of the diamond population particularly with respect to less frequent large diamonds hence since the value of Merlin diamonds is skewed with 75% of the value attributed to only 11% of the weight of the recovered diamonds, the average diamond value cannot only be based on the grade model and a diamond parcel valuation. A diamond value model is not only based on the valuation of a representative ROM diamond parcel but must also factor in quality expectations of the recovered diamonds particularly for the larger less frequently recovered diamonds. Based on the 507,000 carats of diamonds recovered from Merlin during the previous mining operations it was concluded by RIO that there is no discernable difference in terms of size-frequency distribution or range of qualities for the diamonds recovered from any of the pipes mined to date hence there is a reasonable assumption that there is a single diamond population representative of the entire Merlin diamond field. More recent analysis undertaken by NADL and reported in this document indicates that there may be subtle differences in the size-frequency distributions between the micaceous pipes and the non-micaceous pipes.

1.7 Resource The Merlin project total resources are 30MT @ 23cpht for 7.2 million carats. Table 1.5: Merlin Total Resource

Pipe Indicated Res. (Tonnes)

Inferred Res. (Tonnes)

Total (Tonnes)

Grade (cpht) Carats

Southern Cluster

PalSac2, 8,106,000 6,591,000 14,697,000 30 4,379,000 Launfal2 1,580,000 1,710,000 3,290,000 25 820,000 Excalibur1 464,000 309,000 773,000 34 262,000 Tristram2 740,000 740,000 6 44,000 19,500,000 5,505,000 Central Cluster

Gawain,2 1,050,000 610,000 1,660,000 39 655,000 Ywain2 76,000 95,000 171,000 81 139,000

1,831,000 794,000 Northern Cluster Gareth1 125,000 143,000 268,000 22 60,000

16

Kaye2 846,000 2,135,000 2, 981,000 12 356,000 Ector1 1,509,000 3,470,000 4,980,000 7 370,000 Bedevere,2 366,000 138,000 504,000 21 106,000

8,733,000 892,000

TOTAL 30,064,000 23 7,191,000 1Resource grade based on previous mining operation recovery using a +0.95 mm slotted bottom screen and a +0.95mm cut-off. 2Resource grade based on bulk sample test work using a +0.8 mm slotted bottom screen and a +0.95mm cut-off.

The Merlin Mineral Resources have been and classified and reported in accordance with The 2004 Australasian Code for Reporting of Mineral Resources and Ore Reserves (JORC Code). The Merlin Mineral Resources estimates have been prepared by T.H. Reddicliffe. T. H. Reddicliffe is a Fellow of the Australasian Institute of Mining and Metallurgy. T.H. Reddicliffe is a consultant to North Australian Diamonds Limited. T.H. Reddicliffe has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which they are undertaking. This qualifies T.H. Reddicliffe as a “Competent Person” as defined in the 2004 edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’

1.8 Risks The risks associated with assessing the Merlin Resources fall into 4 categories, these being;

1.8.1 Tonnage

Due to their volcanic intrusive nature the geometry of kimberlite pipes can be determined to a high degree of confidence with relatively limited drilling. While volumes are easily determined, equivalent tonnages can be more speculative. The issue is the susceptibility of the kimberlite to intense weathering, often to the point of volume reduction. At Merlin the upper portion of the pipes are invariably deeply weathered including the destruction of primary textures and the formation of clays with individual measured bulk densities as low as 1.3. Beneath the clay zone but within the upper 80m of the pipes, where mineral textures are preserved the bulk densities range up to 2.2. In the deeper portions of the pipe where the kimberlite is fresh and largely unaltered the bulk densities are normally around 2.6. The issue with bulk density is the varying moisture contents, which can be as high as 28% in the clay rich zones and reducing to 3% for the deeper fresh kimberlite. A further complication is that the weathering front is not planar but more a radial effect. The centres of the pipes can be relatively unweathered compared to the margins with an annulus of clay often developed around the periphery of the pipes. Hence at any specific flitch level there is a radial variation of bulk densities from low on the margins to high in the centres. The consequence of these issues is that during the mining operations undertaken by Ashton/RIO the measured volumes mined from the pits could not be reconciled with the processed tonnes despite the taking of large numbers of bulk density and moisture readings. Because of these issues, it is deemed to be more reliable to base all resource estimates on volume measurements. 1.8.2 Grade Determination Because of the issues outlined in a) above with respect to bulk density and moisture content grades are also best quantified in terms of a volume ie, carats per bank cubic meter (cpbcm). In determining grade it must be ensured that the material sampled has not been subject to volume change due to weathering and that the sample is a single representative block and of a singular geological rock type. Depending on the size of the sample the contained diamonds can be recovered by large processing plant for large samples or by laboratory processes for small samples. Because different processes can result in different grades for similar material it is important that lower and upper screen sizes are recorded along with processing procedures. Because diamond occurs as a particulate mineral, knowledge of the diamond size-frequency distribution and the stone frequency per unit of sample is required to establish grade. Grades determined solely from the carat weight recovered from a sample

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can give a reasonable approximation of grade but is never definitive and can be erroneous for small sample sizes. The factors that determine primary diamond grade are as follows;

Diamond Source – According to generally accepted theory, diamonds form and reside in the lower portions of the lithosphere at depths exceeding 150km. These diamonds become entrained in kimberlite magmas which originate in the convecting mantle and are transported to the earth’s surface. This is a poorly understood process with the ultimate surface grades depending on the diamond richness of the lower lithosphere, the amount of diamond bearing material that becomes entrained in the magma, and the rate at which the diamond bearing material becomes entrained in the magma. The degree to which the diamond bearing material becomes disaggregated and dispersed throughout the kimberlite magma and the degree of preservation of the diamonds during the period of transport to the earth’s surface is also important. Country Rock Dilution – Near surface occurrences of kimberlite are usually dominated by ‘diatreme facies’ or kimberlite breccias (VKB). These breccias comprise kimberlite with >15% country rock xenoliths. These country rock xenoliths have been captured by the intruding kimberlite and have a diluting effect on grade as they are barren of diamond. Clearly the greater the dilution by the country rock the lower will be the grade. At Merlin VKB is the dominate kimberlite facies and is seen in all pipes with the exception of Ywain. For any pipe the amount of country rock dilution will be variable throughout the pipe, and while assumptions are made based on the interpretation of drill core the random nature of the dilution makes any definitive assessment speculative.

Ultimately the measured grades are based on plant recovered grades and hence are sensitive to liberation issues, lower screen sizes, plant recovery efficiency, final recovery techniques utilised, and security. The continuity of commercial grade at depth is difficult and costly to demonstrate due to the large sizes of the samples required. The careful use of microdiamond analyses can be useful in ascertaining whether surface grades are expected to persist at depth but it is not definitive. While there is risk in determining an average grade for a particular kimberlite pipe from limited surface sampling due to the number of factors that have to be considered the greater risk lies in assessing whether this grade is representative of the grade of the pipe at depth. 1.8.3 Geological Complexity It is generally the nature of individual kimberlite pipes to be host to different phases of kimberlite which more often than not will have different diamond grades and potentially but less likely different diamond populations. These variations are more likely seen in the larger kimberlite pipes and are less prevalent in smaller pipes or deeply eroded pipes. At Merlin all of the pipes are small by world standards and because there is only a single diamond population identified from all three mined pipe clusters suggests that the pipe clusters are related and are sourced from the same magma stream. At Merlin the following dominant kimberlite types have been recognised;

VKB – This is a kimberlite breccia and is by far the most common kimberlite facies represented at Merlin. It is defined as having >15% country rock xenoliths. PVKB(PLVKB) - This is similar to above but is dominated by pelletal autoliths. VK - This is similar to VKB but with <15% country rock xenoliths. VK1 – This is a very distinctive sandy kimberlite and although seen as rafts within Kaye and Gawain it is best represented within the upper portion of PalSac.

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Micaceous VK – This is hypabyssal material with little or no country rock contamination. It is best seen in Ywain where it comprises the entire pipe. Bedded Tuffs – These have only been encountered in Gawain where a floating raft was encountered and also encountered preserved against wallrock at a depth of 250m. These represent remnants of initial kimberlite phases. They are volumetrically insignificant and specific grades have not been determined.

1.8.4 Diamond Value Unlike other commodities there is no singular value for diamonds, with the value of any particular diamond being subject to its size, shape, clarity and colour and the prevailing market conditions. While reasonable assessments can be made of the value of the smaller diamonds the difficulty arises in being able to attribute average expected value to the larger diamonds where fewer diamonds have been recovered and which may not be representative of the average diamond population. Because of the skewed contribution to value of the large diamonds at Merlin there is a significant risk that the determined value of any ROM diamond parcel will be overstated or understated.

1.9 Recommendations The following recommendations are aimed at increasing confidence in the resource.

1.9.1 Pipe Geology There is geological complexity in some of the pipes that needs to be quantified. In particular Kaye, PalSac and Launfal are known to contain potentially significant secondary subsidiary kimberlite facies. These secondary facies have not been individually quantified in terms of volume or grade. Further investigation of these possibly significant subsidiary facies is required to ensure global grades are not adversely affected.

1.9.2 Diamond Grades The continuity of grade at depth within the pipes has only been investigated through microdiamond analysis for Gawain and PalSac due to the availability of core. Additional core drilling will be required for those pipes for which core is currently unavailable. Grade control samples have only been taken from Gawain, Kaye and Sacramore. The Sacramore samples have not been processed and there has been insufficient samples taken from Kaye. Without these control samples the historic mining data may not accurately reflect grade. Further pit samples are required particularly for the pipes Palomides, Launfal and Ector which have not been tested.

1.9.3 Diamond Values Because of the skewed diamond value distribution and the relatively few data points within the high value diamond population, a thorough analysis of quality distribution within the entire diamond population and its relevance to the larger stone population is necessary. Diamond valuations heavily influenced by the large diamond population and few data points can result in misleading conclusions with respect to average diamond parcel value.

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1.10 Qualifications and Technical Experience of Author Author: Thomas Reddicliffe, Mr T.H. Reddicliffe, BSc(Geol), BSc.(Hon), MSc, FAusIMM, has more than 30 years almost exclusive experience in diamond exploration, evaluation and mining in Australia and a 20 year association with the Merlin Project. T.H. Reddicliffe is a consultant to North Australian Diamonds Limited. T.H. Reddicliffe has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which they are undertaking.

This qualifies T.H. Reddicliffe as a “Competent Person” as defined in the 2004 edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’

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2 GEOLOGY

2.1 Introduction The Merlin field comprises fourteen kimberlite intrusions distributed in four discrete clusters, which are mostly preserved on a sand drifted, poorly drained plateau. The Merlin diamond field has a surface footprint of some 10km by 5km.

2.2 Regional Geology The Batten region is situated on the eastern side of the North Australian Craton. The area south of the western edge of the Gulf of Carpentaria is dominated by the relatively undeformed Middle Proterozoic McArthur Basin which extends over an area of 180,000 km2 (Pietsch et al, 1991). The basin forms part of the North Australian Platform overlying the Early Proterozoic Pine Creek Inlier, Arnhem Block and Murphy Inlier (Plumb et al, 1990). Early Proterozoic basement rocks in the McArthur Basin include the Scrutton Volcanics which have been dated by U - Pb in zircon at 1857± 30 Myr (Pietsch et al, 1991). A major structural feature of the southern McArthur Basin is the Batten Trough, also known as the Batten Fault Zone, a 70km wide zone of extensive faulting, trending north northwest. The Batten Trough bounded on the east by the Emu Fault and obscured to the west by the Roper Group of sedimentary rocks is one of several asymmetric synsedimentary grabens which developed in the McArthur Basin after deposition of the Tawallah Group, possibly as a failed intra-continental rift similar and parallel to the Mt Isa orogen (Plumb and Wellman, 1987). Up to twelve kilometres of sediments was deposited within the Batten Trough in a westwards thinning wedge, compared to four kilometres of sediments on the adjacent Bauhinia and Wearyan shelves. Cambrian aged Bukalara sandstone, 30m to 100m thick, overlies the McArthur Basin sedimentary rocks in much of the Batten region and frequently forms topographic plateaux. Flood basalts of Cambrian age become prevalent in the southern portion of the region, although they are generally obscured by younger sediments. The Merlin kimberlite field represents the youngest known volcanic event in the region. Cretaceous aged sedimentation has been widespread in the area but the rocks have now been largely removed by erosion for a distance extending some 200km south from the Gulf of Carpentaria coastline. This stripped area is characterised by well-dissected drainage interspersed with isolated, remnant, poorly drained, pisolite covered planation surfaces. One such remnant surface is host to the Merlin kimberlite field. The southern limit of the stripped Cretaceous is marked by a well-defined escarpment, which also represents a major drainage divide. Streams to the south flow southwards to the Georgina Basin, while those on the north side of the escarpment flow north to the Gulf of Carpentaria.

2.3 Local Geology Merlin Plateau Geology The Merlin plateau is a preserved, Tertiary aged (Pietsch et al, 1991) planation surface, with a slight declination to the north of less than 1 degree. The plateau surface is a scrubby sand-drifted plain underlain by iron pisolites and, in some instances, ferricrete, which in turn is underlain by a flat-lying section of lower Cambrian Bukalara sandstone. A characteristically intensive jointing pattern dissects the sandstone sheet surface and controls a dendritic to trellis pattern of tributary drainage. The eastern margin of the plateau sharply abuts an uplifted block of Proterozoic aged sediments of the McArthur Group, while more regionally, the plateau lies between NNW trending faults which parallel the Emu fault to the west.

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Two differing aged Cretaceous sedimentary rock units have been identified on the plateau. These are: 1. White Silicified Quartzite: This rock unit is easily recognisable by both its white silicified nature and the abundance of preserved plant fossil casts it contains. The quartzite is mostly massive, with a maximum preserved thickness of <3m but is usually <1m, and conformably overlies the Bukalara sandstone in all cases. This sandstone unit is reported by Pietsch et al (1991) as being common in the Bauhinia Downs 1:250,000 sheet area, and based on the recognised Neocomian plant fossils (Archbold, 1998), the sediments are believed to be deposited in non-marine, shallow water environments. Several plant fossil species have been identified in the rock unit (Archbold, 1998), namely:- Ptilophylum sp., Hausmannia sp., Cladophlebis sp. and Araucaria, sp. These plants date the rocks as belonging to the Neocomian – Early Barremian period of the Early Cretaceous. 2. Mottled, Bioturbated Sandstone: These sediments form a thin veneer of <1m in most instances and conformably overlie both Bukalara sandstone and, in rare instances, the white silicified Cretaceous aged quartzite. These sediments have not been dated directly, but are believed to equate to sediments in the kimberlite pipes, which have been age dated from marine ammonite fossils, namely Australiceras sp., (Archbold, 1998), which has a Late Aptian – Late Albian time range. Table 2.1: Age of Merlin Fossils

Albian Marine Aptian Fauna

Infill Sediments

Barremian Early

Cretaceous Neocomian

Flora On Plateau

Ref: Reddicliffe, T. H. (1999) Merlin Kimberlite Field The flora and fauna on the Merlin plateau is consistent with regional observations (Skwarko, 1966) and support the conclusion that widespread Early Cretaceous terrestrial sedimentation was followed by a marine transgression. Evidence of the latter is preserved within the kimberlite pipe structures at Merlin. The Cambrian aged sediments are represented by the Bukalara sandstone, which comprises a flat lying to gently warped, slightly feldspathic quartz sandstone. Thin interbeds (<2m) of micaceous siltstones are common throughout the formation. It is the dominant sedimentary rock in the area and is intruded by all of the Merlin kimberlite pipes. The thickness of the formation was determined by drilling to be 120m to 150m thick in the vicinity of the Merlin field, and appears to shelve to the south. The sandstone unconformably overlies McArthur River Group sediments in the area. Structural Setting The Batten region is conducive to structural analysis because of the relatively good exposure of structures, particularly in areas of flat lying, exposed Bukalara sandstone. While the structural setting of the Merlin field and local structural controls are generally apparent, the structural mechanism which controls the focus of the Merlin intrusives is speculative. Regional Setting Regional structural trends deduced from various interpreted data-sets have been summarised by Leaman (1998). A regional northwest southeast grain is present but is generally not dominant in terms of the rift and basin evolution. In the Batten area only portions of the rift system have been influenced by this orientation and hence Leaman (1998) concludes that the mapped Calvert Fault system is a much younger stress release even though there are local anomalous features along its general trend. The location of the Merlin kimberlite field on the interpreted trace of the Calvert Fault would support Leaman’s conclusions, given the Devonian age of the kimberlites. Leaman (1998) also revealed that although early basin patterns involved true rifts and half graben structures, there is no coherent, large, single structure evident within the broader McArthur Basin. Each rift element or region appears as a sub-basin or cell with its own rift and transform pattern within

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a gross framework defined by the northwest crustal grain. Each cell revealed a varied stress field both between cells and at different times in the cycle. These patterns were developed early in the basin history and were sites for accumulation of thick continental lava piles. Although elements of the rift system trend roughly northwest or northeast, the most important regional trends are west northwest and east northeast. Each of the trends is associated with continental uplift or horst formation. A north northeast trending transfer style shear or wrench structure was recognised near the HYC lead-zinc deposit by Leaman (1998). He concludes that this structure remained very active until the end of the second sedimentary cover fill and rift stage mafics and continued to move until deposition of the McArthur Group. Some 40km south of the HYC Pb-Zn deposit and on this same north northeast structure is located the Abner sandstone breccia pipe and associated indicator mineral bearing north northeast trending fractures. Assuming that this pipe is of a similar age to the Merlin kimberlites then it would indicate that these structures have been active over an even greater time span than suggested by Leaman. This structure is readily recognisable on satellite imagery. Much smaller structures with the same trend are associated with the E.Mu pipes, some 40km due east of the Abner Range structure, suggesting that the Merlin field probably lies on a similar, regional structure. However, a north northeast trending regional structure is not evident on the satellite image (Figure 5.10). A northwest trending fault which parallels the Emu Fault is evident, which would intersect both the southern cluster of the Merlin pips and the Kay/Ector group.

Figure 2.1 Satellite Image of the Merlin Plateau showing location of Emu pipes

E.Mu Pipes

Fault parallel to Emu Fault

Emu Fault

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Structure The local structural control for the Merlin kimberlites is best illustrated by Excalibur and its nearby breccia pipes where the pipes can be seen to be associated with indicator mineral bearing fractures trending 015o magnetic. Other structural features associated with the intrusives are concentric fracturing and marginal sandstone breccias. Concentric fracturing has been observed at E.Mu 2, Excalibur, Gawain, and Perceval, with the best developed examples being at E.Mu 2 and breccia pipe 1. The fractures are usually up to 1m apart and are constrained to within 10m of the edge of the pipe.

2.4 Deposit Type The Merlin field is fortuitously preserved within a sand and iron pisolitic covered, poorly drained Tertiary aged land surface which equates to the basal Cretaceous unconformity. Preserved on the land surface are remnant, Barremian aged, silicious quartzites of terrestrial/lacustrine origin and Albian aged bioturbated sandstones of marine origin. These latter sediments are also preserved within the pipe structures. A possible explanation for this is that the pipes were intruded during the time hiatus between the two sedimentary sequences. However this explanation is not supported by the geochronological age of the pipes, which is Devonian based on both K-Ar and Rb-Sr dating of phlogopite. With the exception of the two E.Mu pipes which have no infill sediments associated with them, the Merlin pipes are variously ‘corked’ by infill sediments. The identical nature of the sediments and similarities with the regional Cretaceous stratigraphy indicates the infill sediments represent preserved basal Cretaceous sediments. The sagged nature of the infill sediments, the upturned edges with associated slickensides, the presence of a basal non-kimberlitic conglomerate and the thickened iron pisolite profiles, all suggest that the Cretaceous aged sediments have subsided into the pipe structures. This subsidence appears associated with the retreat of the kimberlite, which is likely due to solution weathering of the kimberlite. A greater retreat in some of the pipes allows a greater section of the overlying Cretaceous sediment to be captured and subsequently preserved within the pipes structures, and accounts for the presence or absence of the mudstone in the infill sediments. Five broad categories of kimberlite facies have been recognised; these being epiclastic kimberlite, tuffisitic kimberlite, tuffisitic kimberlite breccia, pelletal tuffisitic kimberlite and micaceous tuffisitic kimberlite. Collectively, particularly the presence of epiclastic kimberlite in the E.Mu 1 pipe and in Gawain, indicate the pipes are preserved at the upper diatreme level. 2.4.1 Pipe Geology and Mineralogy The fifteen kimberlite pipes comprising the Merlin field are regionally located on the eastern shoulder of the Batten trough, some 6km east of the Emu Fault and on the projected trace of the northwest trending Calvert Fault. Four discrete clusters of pipes are present in the elongate field, which extends over an area of 10km by 5km. Within each cluster the distances between the pipes varies from 100 to 400m, but in one instance, is 1500m. The distance between the clusters is usually 3km. The thirteen kimberlite vents representing eleven discrete pipes are situated within the mining lease and named Excalibur, Palomides, Sacramore, Launfal, Launfal North, Kaye, Ywain, Gawain, Tristram, Gareth, Ector , Bedevere and Perceval. All of the pipes in the field, including the two E.Mu pipes which are outside the bounds of the mining lease, have intruded the Cambrian aged Bukalara sandstone, which is flat lying and unconformably overlies Proterozoic sediments in this area. Pipe Sizes The pipes vary in diameters from 20m to 250m, and from limited drilling data appear to maintain their gauge at depth. The various dimensions are shown in Table 2.2.

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Table 2.2: Dimensions of Merlin Kimberlite Pipes

Cluster Pipe Diameter Area Cluster Area

1 E.Mu 1 E.Mu 2

250m 100m

4.5 ha 1.8 ha 6.3 ha

2

Bedevere Ector Kay Gareth

40m 125m 125m 60m

0.13 ha 1.2 ha 1.2 ha 0.28 ha

2.81 ha

3 Ywain Gawain

25m 50m

0.05 ha 0.2 ha 0.25 ha

4

Excalibur Launfal Launfal North Palomides Sacramore Tristram Perceval

60m 50m 30m 60m 60m 50m 20m

0.28 ha 0.2 ha 0.07 ha 0.28 ha 0.28 ha 0.2 ha 0.03 ha

1.34 ha

Ref: Reddicliffe, T.H. (1995) Supplementary Report to the Australian Diamond Exploration Summary of Exploration Activity Report.

2.4.2 Pipe Infill Sedimentary Rocks A characteristic feature of the Merlin kimberlites, with the exception of the two E.Mu pipes is that the pipe structures are ‘corked’ by non-kimberlitic sedimentary rocks of Cretaceous age. Due to the planar nature of the Merlin plateau and the widespread distribution of iron pisolites and sand, the sedimentary rocks infilling the pipes are not distinguishable at the surface. Where they have been exposed in sample pits, in many instances, they are not easily distinguished from the surrounding sandstone country rocks. The pipes can be placed into three categories with respect to the infill sediment characteristics, the various thicknesses of which are shown in Table 2.3. These categories do not in general equate to the various clusters, and Ector is unusual in having both styles preserved in the one pipe structure.

(i) Sandstone Infill A bedded bioturbated sandstone infill sedimentary sequence is present at Launfal, Palomides, Sacramore, Gareth, Kay and the western portion of Ector. This infill is up to 15m thick with individual beds up to 1.5m thick and is not contiguous with the surrounding Cambrian aged sandstones. The sandstone has a sag appearance with the margins typically upturned. A thin basal conglomerate bed is present in all cases, and is particularly obvious at Palomides. This conglomerate is devoid of obvious coarse kimberlite material, as is the overlying sandstone. The conglomerate is matrix supported and consists of sub-rounded, sandstone cobbles (<10cm in diameter) in a fine grained, sandy matrix. Black chert cobbles are common in parts of the Palomides conglomerate. The bed is usually 30cm thick, but commonly thickens at the margins of the pipe to up to 1-2 metres. Overlying the sandstone is a 4m thick section of iron pisolites, which at the pipe margins, sharply abuts the <0.5m pisolite layer overlying the Bukalara sandstone. These pisolites represent a transported lag deposit and is very characteristic of all the pipes, suggesting that there has been subsidence of the kimberlite and overlying sediments at a late stage, ie, in the Late Tertiary or post Tertiary. The margins of the pipes are marked by a thin selvage of kimberlite, thinning upwards, which is wedged between the sandstone infill sediments and the Bukalara sandstone wall rocks. Slickensides are also occasionally observed in this zone.

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(ii) Mudstone/Sandstone Infill The remainder of the pipes, Excalibur, Launfal North, Tristram, Gawain, Ywain, Bedevere and the eastern portion of Ector, have a combination infill of mudstone overlying sandstone. The sandstone unit appears similar to that present in the sandstone only infilled pipes, and evidence from drilling indicates the presence of a thin basal conglomerate bed. The thickness of this infill mudstone/sandstone sedimentary sequence varies between the pipes from 26m to 42m. The sandstone laps on to the margins of the pipes, with the mudstones filling the core. The mudstone is a massive unit varying in colour from white to grey. A selvage of kimberlite is usually present around the periphery of the pipes, similar to that seen in the sandstone infilled pipes. (iii) No Infill Sediments E.Mu 1 is expressed by a well developed amphitheatre, 250m wide and 30m deep. Within the amphitheatre, the kimberlite is covered by a thin veneer of soils and sand. The pipe is partially cut by Matheson Creek, which aided the development of the amphitheatre. E.Mu 2 lies within Matheson Creek and is partially covered by superficial stream deposits. Apart from well developed concentric fracturing, there is no amphitheatre development. It is possible that these two pipes had infill material, which is no longer preserved due to the incised erosion of the pipes, which are both traversed by Matheson Creek.

Table 2.3: Thickness of Infill Sediments within the Merlin Kimberlite Pipes

Cluster Pipe Sandstone Mudstone/ Sandstone None

1 E.Mu 1 E.Mu 2

30m scarp outcrop in river

2 Bedevere Ector Kay Gareth

15m 15m 15m

42m

3 Ywain Gawain

30m 26m

4 Excalibur Launfal Launfal North Palomides Sacramore Tristram

8m 8m 8m

26m 20m 32m

2.4.3 Age of Infill Sedimentary Rocks The stratigraphy of the sediments is equivalent to the Cretaceous aged sediments present elsewhere in the region. Fossil evidence dates these sediments as Cretaceous (Archbold, 1998) based on the presence of the marine deep-water ammonite Australiceras, which range up to 1m in diameter. There is no firm evidence of the older, silicified, plant bearing rocks within the pipe sediments. However, soft white sandstone has been intersected in drill holes in both Gareth and Gawain, generally beneath the harder sandstone beds. It is possible this soft sandstone is the equivalent of the silicified, white, fossiliferous sandstone seen at surface in the area. The sandstone unit is devoid of indicator minerals and diamond suggesting a time hiatus to allow erosion and removal of kimberlite ejecta prior to the deposition of the sediments. The deep nature of the infill, up to 42m at both Bedevere and Tristram, is enigmatic and difficult to explain by infilling of the pipe after erosion but rather is more suggestive of pipe retreat due to post emplacement settling

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or, alternatively, solution weathering. The time hiatus between the geochronology age of the pipe and the overlying marine Cretaceous aged sediments is more supportive of the latter conclusion. The fact that the mudstone unit is only preserved in those pipes with a thick infill sequence, and always overlies the sandstone, is a reflection of the deeper pipe’s ability to preserve a thicker Cretaceous sedimentary sequence. The smaller discrete pipes have the thickest preserved infill sediments suggesting they are more susceptible to solution weathering, and hence allow deeper subsidence. Collectively, these factors support the premise that the Cretaceous aged sedimentary rocks have subsided into the kimberlite after cessation of intrusive activity.

2.4.4 Kimberlite Facies The Merlin kimberlites have been sufficiently core drilled to allow a definitive description of the various kimberlite lithologies which comprise the two kimberlite facies present within the kimberlite pipes. From available material from some of the pipes five broad kimberlite lithologies have been recognised, and are described below, using the classification of Mitchell (1985). (i) Crater Facies (a) Epiclastic Kimberlite

The most significance occurrence of bedded tuffs is within the E.Mu 2 pipe, which has been described in detail by Collier, 1987. No tuffs are present in E.Mu 1, or any of the other kimberlite pipes. Collier’s description is as follows:

‘A characteristic feature of the E.Mu 2 is the abundance of spherical lithic lapilli, indicating aerial ejection of consolidated fragments of adhering kimberlite, olivine megacryst or crustal xenoliths, each with molten magma. Bedding varies from 20o at 12.6m to 45o at 63.4m and is indicated by marked variations in the grain size, degree of sorting and by imbrication of clasts. There is also evidence of upward grading of the beds, with coarse bands containing clasts to 4mm. The rock is dominantly composed of rounded to sub-hedral olivine crystals and sub-rounded kimberlite clasts. Minute equant chrome spinels are common within the olivines. There is rare relict phlogopite and occasional pale ragged crystals of aegirine. There is a minor content of angular crustal xenoliths, chiefly white, fine grained dolomite.’ Epiclastic kimberlite in the form of bedded tuffs has also been observed as a raft within Gawain at a depth of some 200m below current surface. (ii) Diatreme Facies (a) Tuffisitic Kimberlite Breccia

This is the most common component of all of the pipes, with the exception of E.Mu 2 and Ywain, and represents the diatreme facies of kimberlite (Figure 2.6). The rock is characterised by two generations of mostly pseudomorphed olivine (25-30%), a rounded macrocrystal population <15mm diameter, and an anhedral to subhedral population <1mm. Phlogopite is present as <1mm laths (2-10%), which is typically altered to green chlorite. The fine grained groundmass is mostly altered to serpentine with primary minerals of mica, spinel, apatite and calcite. Two phases of mica were recognised by Lee et al (1995) who reported clear cores overgrown by later stage mica. Crustal xenolith content varies (15% to 40%) but is dominated by dolomite and sandstone fragments. Mantle xenoliths, are not common, appear to be of lherzolitic composition, are totally altered and <4cm in diameter.

(b) Tuffisitic Kimberlite

This is similar to the tuffisitic kimberlite breccia, but with a low (<15%) xenolith content (Figure 2.2). The olivine macrocrysts and microcrysts can represent up to 40% of the rock.

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Figure 2.2 Tuffisitic Kimberlite (thin section mag x 40)

Figure 2.3 Pelletal Tuffisitic Kimberlite Breccia (polished section mag x 2)

Figure 2.4 Micaceous Tuffisitic Kimberlite (thin section mag x 40)

Phlogopite

Olivine

Phlogopite

Olivine

Fine grained glassy rim with olivine

Dolomite

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Figure 2.5 Tuffisitic Kimberlite (polished sections mag x 2)

Figure 2.6 Tuffisitic Kimberlite Breccia (polished section mag x 2)

(c) Pelletal Tuffisite Kimberlite Breccia The Palomides pipe is characterised by pelletal tuffisitic kimberlite breccia (Figure 2.3). The tuffisite consists of common rounded autoliths mostly nucleated on dolomitic fragments <2cm in diameter with lesser nucleated on olivine megacrysts. The kimberlite selvage is up to 5mm thick, and comprised of olivine phenocrysts, mica, carbonate and serpentine. Country rock xenoliths can represent up to 30% of the rock.

These large spherical structures are typical of globular segregationary hypabyssal kimberlites (Lee et al, 1998) and are believed to have formed either during diatreme formation or earlier during ascent in a more hypabyssal-like environment and then were carried though into the final fluidisation process during diatreme formation. This latter possibility would seem the most likely as the crater facies present in E.Mu 2 would indicate the pipes are currently exposed at the upper diatreme level.

(d) Micaceous Tuffisite Kimberlite

Micaceous tuffisite is present in many of the pipes, generally as a minority component, and is best developed in Ywain where it appears to be the only

Kimberlite fragments with olivine phenocrysts

Lithic Fragments

Olivine Macrocrysts

Olivine Microcrysts

Olivine Macrocrysts

Olivine Microcrysts

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component (Figure 2.4). The kimberlite is extremely weathered and altered making petrographic study difficult. Two generations of olivine is present (10-20%) with phlogopite being up to 60% of the rock. The ground mass is completely altered to serpentine and no xenolith material has been recognised.

2.4.5 Geochronology of Pipes Two of the Merlin pipes have been dated giving consistent ages of approximately 360ma.

E.Mu 1: The E.Mu 1 pipe was dated using K-Ar (Atkinson et al) giving an age of 360 ma±4 ma.

Excalibur: The Excalibur pipe was dated using Rb-Sr techniques (Webb, 1994)

on phlogopite giving an age of 367±4 ma/352 ±3 ma. (Table 2.4) Table 2.4: Geochronology

Model Age (Ma) Sample Rb (ppm)

Sr (ppm)

87Rb/86Sr #87Sr/86Sr 0.705 0.710

BH113 Phlogopite

691.0 90.1 22.395 0.82179 367±4 352±3

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3 EVALUATION TECHNIQUES AND METHODOLOGY

3.1 Introduction

The evaluation of a kimberlite body with a view to determining the potential commercial significance of the deposit requires the estimation of 5 main factors, these being deposit style, tonnage/volume, diamond grade, diamond value and diamond security. The techniques utilised and methodologies adopted to measure and quantify these factors for the Merlin kimberlites are outlined below.

3.2 Deposit Style Diamond deposits typically fall into 4 categories, these being;

Marine Deposit –onshore or offshore. Continental Alluvial Deposit –current or paleochannel. Primary Hardrock Deposit –diatreme, hypabyssal plug/blow or dyke. Sedimentary Hardrock Secondary Deposit

The identification of the style of the diamond deposit is determined through a geological assessment. Once the style is confidently determined it allows for a further assessment of additional factors pertinent to the deposit style that will be critical to determining techniques and methodologies to evaluate the commercial potential of the diamond deposit. In the case of Merlin, a hardrock deposit comprising 4 discrete clusters of pipes all of which have the upper levels of diatreme facies kimberlite preserved. The amount of kimberlite removed by post intrusive erosion processes is not known quantitively. Having been identified as typical diatremes, the following factors have to be assessed for each of the pipes under evaluation;

Kimberlite Facies – Being volcanic intrusives kimberlites are normally host to different kimberlite phases or facies which in turn can result in different diamond grades and/or less commonly diamond types. Hence these different facies have to be identified and quantified in terms of their volumetric significance relative to the entire pipe. Depth and intensity of Weathering – Kimberlites due to their mineralogy are extremely susceptible to weathering. The importance of weathering is that intense weathering can result in solution weathering which in turn can lead to volume reductions in the deeply weathered but mostly upper part of the pipes. The effect of volume reduction is to enhance grade since the diamonds are not dissolved. The second effect of weathering is to reduce rock density which in turn increases any grade measured in terms of tonnes. At Merlin the near surface upper portions of the kimberlite have SG’s as low as 1.3 while for the fresher deeper portions of the pipes it increases to 2.6, which represents a density change of 100%. This can result in erroneous conclusions if near surface weight based grades are extrapolated to depth.

Understanding and quantifying the above two factors is critical before any further assessment can be made of the pipes. This is primarily achieved through the undertaking of sufficient core drilling and to a lesser extent pit mapping where practical considerations such as depth of overburden allow.

3.2.1 Drilling Because the core may be utilised for additional analytical analysis such as determining microdiamond frequencies, either PQ or HQ is the preferred gauge of core but smaller diameter core such as NQ can be used if other practical considerations prevail. In addition it is important to used drill bits which use only synthetic diamonds if analysis of the core is likely, as synthetic diamonds are easily differentiated from natural diamonds. No unusual drilling techniques are required, although triple tube can be used in the weathered zones as a means of reducing core loss.

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RC drilling methods have limited applicability in the investigation of kimberlites where visual information s required in identifying and classifying the rock. In logging the core the following information is collected as a means of classifying the kimberlite in terms of a facies type;

Groundmass mineralogy Type and abundance of macrocrysts Type and abundance of country rock inclusions Abundance of Pelletal kimberlite Presence of bedding or layering Degree of Weathering Specific Gravity

In addition representative samples may be taken for petrology and geochemical analysis.

Petrology – This is normally used in the early assessment and gross classification of the kimberlite so that the fine mineralogy can be correctly identified and the rock type confirmed. This is not normally a rigorous process unless the identity of the rock type is in doubt or the diamond bearing nature of the rock is not confirmed. There is normally no advantage in differentiating various kimberlite facies based on petrological inspection as opposed to visual inspection. . Geochemistry – This is used in the early assessment and classification of the rock as a kimberlite. The technique has little or no bearing with respect to the ongoing evaluation of the commercial potential of a particular kimberlite. There is normally no advantage in differentiating various kimberlite facies based on gross geochemistry rather than by visual inspection. Heavy Mineral Assemblage – This is used in the early assessment and classification of the rock as a kimberlite, as well as giving an indication of potential diamond content. The chemistry of the indicator minerals, chromite, pyrope garnet and picroilmenite can be used to determine the depth of origin of the kimberlite magma and hence determine whether the magma has originated from within the diamond stability field. The mineral chemistry information becomes irrelevant once direct testing for diamonds has been completed and hence has no bearing on the evaluation of the commercial potential of the kimberlite pipe.

3.2.2 Pitting This is usually the first technique to be used to establish the style of the deposit. However it is very dependent on the thickness of the overburden, the presence or absence of infill sediments and the degree of weathering. Notwithstanding the geometry of the body at surface can usually be established by pitting or costeaning if surficial overburden is not too thick. The nature of the kimberlite facies cannot always be clearly identified if weathering is intense and clays are well developed. Samples taken for petrology, geochemistry and identification of indicator mineral assemblages are usually severely compromised. When dealing with kimberlite pipes like those at Merlin it is generally universally accepted that;

-The pipes are intrusive volcanic magmas that have originated at depths >150km. -The pipe body will persist to a significant depth but may taper or change shape with depth. -Epiclastic facies represent the initial surface airfall ejecta from the volcanic event. -Diatreme facies represents the upper portion of the volcanic event and is heavily contaminated with country rock. The formation of this facies is in direct response to the volcanic event breaching the surface and degassing.

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-Hypabyssal facies is regarded as late stage and may intrude the diatreme faces in places, but more often than not is representative of kimberlite events that have not breached the surface.

3.3 Tonnage/Volume Once the style of the diamond deposit has been identified the volume/tonnage can be assessed by undertaking an appropriate amount of drilling. Initially this requires the surface expression of the pipe to be defined by shallow RAB drilling or pitting if the depth of overburden allows. The geometry of the pipe is then required to be defined at depth by either RC or core drilling. The drilling aims to define kimberlite/country rock boundaries and also to define the volumetric significance of different kimberlite facies if they are present. For small pipes such as those at Merlin it is difficult and costly to accurately define volumetrically less significant kimberlite facies. Hence calculated pipe volumes are usually attributed to the majority kimberlite facies.

1) Drilling – As drilling aims to collect information in addition to overall geometry, there is a preference for core drilling to be used, or a combination of RC pre-collars with core tails.

2) Surface Surveying – It is important that drill hole collars are located by surface survey

undertaken by a competent person and that the survey is tied into a national or local datum.

3) Downhole Surveys – It is critical that drill holes are surveyed at appropriate intervals which would normally not exceed 25m downhole.

3.4 Diamond Grade The determination of grade for a kimberlite relies heavily on two assumptions, namely; -The diamonds are distributed reasonably homogenously throughout any particular kimberlite facies.

-The size/frequency distribution of the diamonds remains constant for any particular kimberlite facies.

In addition diamond grade based on total diamond content as opposed to process plant recovered diamonds will be significantly different. The particulate nature of diamond and the variability of stone size is also a complicating factor, to the extent that any sample result is a snapshot of grade rather than an absolute grade. To address this latter issue, grades are in the first instance based on the average number of stones recovered per unit of sample which is then multiplied by the mean stone weight in carats. The plant recovered grades are however very sensitive to the size and shape of the lower screen aperture, so that this needs to be stated when grades are determined. Grades based on total diamond content need to be stated as such to avoid misinterpretation of the information. However, it is not normal procedure to quote grade inclusive of the non-commercially sized diamonds.

3.5 Diamond Value The valuation of diamonds is a specialised business undertaken by trained diamond valuers who may also be in the market buying or selling diamonds. It is commonly found that different valuers can attribute significantly different values to the same diamond or parcel of diamonds. Of the four factors that valuers use to determine specific value, namely, weight, shape, colour and clarity, it is the perception of the colour that is the common cause of disagreement. Like any commodity market conditions is also a significant factor which can see the demand for specific categories of diamonds fluctuate considerably relative to other categories.

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The value of the diamonds from a particular project is, for simplicity, often quoted as a singular price and always in $US. Without any qualifications this can be misleading. Like grade the average value of a diamond parcel is significantly influenced by the contribution from the smaller diamond sizes. Hence if grades are quoted in this manner it is important that the diamond parcel represents ROM recovery, if it doesn’t then the average diamond value has no meaning. When using diamond value to determine revenues, a simplistic approach is to multiply the average diamond value by the grade provided the average grade and average diamond value are determined using the same diamond distribution. This approach is not adequate for detailed economic analysis but rather grade and value models have to be established. One of the weaknesses of this approach is that if the distribution of value is significantly skewed towards the large diamonds, as is the case for Merlin, then values based on small numbers of diamonds can give misleading results, in that they could be too high or too low. Although deposit dependant, generally a minimum 50 diamonds per diamond size category is required to establish confidence in the average carat value per size category. This is so the full variety of colour, size and shape and their relative abundance can be observed for each size category. At the sampling stage recovering 50 individual diamonds in size categories of 5cts and above can be problematical and hence the average carat value for these size categories need to be carefully assessed. A grade model is established by determining the contribution to grade for each diamond size category. In the first instance the number of stones per size category is established from sampling data. Then using the mean stone weight for each size category the grade in carats can be calculated. Using the average diamond value for each size category the contribution to value for each size category can be calculated in conjunction with the contribution to grade established in the grade model. The benefit of this approach is that the effect on revenue of varying the lower screen cut-off can be easily modelled.

3.6 Security and Integrity At all stages in the evaluation of a diamond deposit security is important to ensure integrity of the results that are obtained. The most effective approach to security is;

- Limit the opportunity of physical contact with the diamonds during processing. - Restrict access to final recovery areas of the process plant. - Record all diamonds that are recovered. - Chain of custody for diamonds once they are registered.

The danger with diamond loss is not that it will effect grades but more that a true reflection of the diamond size distribution and the diamond value could be compromised.

3.7 Sampling Techniques The purpose of sampling with respect to kimberlites is aimed exclusively at identifying kimberlite facies and determining diamond grade and diamond value. The specific sampling techniques and their purpose are discussed below; 3.7.1 Core Samples The collection and processing of core samples can serve three purposes; it allows for logging and visual identification of kimberlite facies types, italso provides material for microdiamond analysis and if the core is sufficiently large and there is sufficient volume then processing for commercial diamonds can be undertaken.

1) Logging – The visual logging of core to identify and differentiate different kimberlite facies is done using the following parameters;

- Groundmass mineralogy

- Type and abundance of macrocrysts

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- Type and abundance of country rock inclusions - Type and abundance of mantle xenoliths - Abundance of Pelletal kimberlite - Presence of bedding or layering

2) Microdiamond Analysis – The core from different kimberlite lithologies can also be used

to establish their microdiamond content and hence compare the commercially sized diamond bearing potential of these different lithologies, both inter-pipe and intra-pipe. The interpretation relies on there being an established relationship between the microdiamonds and the commercially sized diamonds. Individual samples of core are usually in the range 50kg to 100kg. Only inferred diamond grades can be deducted from microdiamond analyses. No

information pertaining to diamond value can be established from microdiamond analyses. 3) Bulk Core Sampling – If grades are not too low than Large Diameter Core (LDC) drilling

can be undertaken to provide material from depth within the pipe. This material would be crushed and processed through a DMS plant in a similar manner as to the processing of larger surface bulk samples. This approach can provide reliable data if the samples are sufficiently large to provide a statistically significant number of diamonds.

3.7.2 Rock Samples

The collection and processing of rock samples of a specific kimberlite facies provides material for microdiamond analysis.

1) Logging – The visual identification of the kimberlite facies is done using the same parameters as for logging core.

2) Microdiamond Analysis – Rock/boulder samples from different kimberlite lithologies has

also be used to establish their microdiamond content and hence compare the commercially sized diamond bearing potential of these different lithologies, both inter-pipe and intra-pipe. The interpretation relies on there being an established relationship between the microdiamonds and the commercially sized diamonds. Individual rock samples are usually in the range 50kg to 100kg. The integrity of the sample result is dependant on the sample being a contiguous insitu block of kimberlite that has not suffered any volume reduction due to weathering processes and whose volume has been carefully measured or surveyed. If the boulder is sufficiently large then both microdiamonds and macrodiamonds may be recovered.

Only inferred diamond grades can be deducted from microdiamond analyses. No information pertaining to diamond value can be established from microdiamond analyses.

3.7.3 Pit Samples 1m3

The collection and processing of pit samples from different kimberlite facies types provides material for microdiamond and macrodiamond analysis.


2) Microdiamond Analysis – Pit samples from different kimberlite lithologies can also be

used to establish their microdiamond content and hence compare the commercially sized diamond bearing potential of these different lithologies, both inter-pipe and intra-pipe. The interpretation relies on there being an established relationship between the microdiamonds and the commercially sized diamonds. Individual samples of core are usually in the range 50kg to 100kg. The integrity of the sample result id dependant on the sample being a contiguous insitu block of kimberlite that has not suffered any volume reduction due to weathering processes and whose volume has been carefully measured or surveyed.

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Only inferred diamond grades can be deducted from microdiamond analyses. No information pertaining to diamond value can be established from microdiamond analyses.

3.7.4 Pit Samples 100m3

The collection and processing of large pit samples from different kimberlite facies types provides material for commercially sized diamond grade analysis.


2) Commercial Diamond Analysis – Pit samples from different kimberlite lithologies is used

to establish their process plant recovered diamond grade and hence compare the commercially sized diamond bearing grade of these different lithologies, both inter-pipe and intra-pipe. Individual large pit samples are in the order of 100m3 or approximately 200t.

These samples are sufficiently large to establish a reliable plant recovered commercial diamond grade No reliable information pertaining to diamond value can be established from individual samples since insufficient numbers of diamonds are recovered.

3.7.5 ROM Samples The processing of larger volumes/tonnages of kimberlite serves a single purpose that being to recover sufficient diamonds to enable a reliable estimation of diamond value to be established. While a measurement of the volume/tonnage processed is useful it is not necessary for the purposes of recovering the diamond parcel. The size of the sample to be processed is dependent on the diamond grade, the lower the grade the greater the amount of material required to be processed to recover a representative parcel of diamonds. The size of the diamond parcel required to be recovered is dependent on the size-frequency distribution of the diamond population. The better the size-frequency distribution the larger the diamond parcel will need to be, as the larger diamonds will have a greater influence on average parcel value than for parcels that have fewer large diamonds. Depending on the range of colour, shape and clarity of the diamond parcel, approximately 50 diamonds are needed for each diamond size category to establish an average value for any size category. This is normally not a problem for the smaller diamond size categories, but for the larger size categories where diamond recoveries are less frequent recovering sufficient numbers of diamonds to get a reliable estimate of average value can be difficult.

3.8 Sample Collection The protocols adopted for the collection of samples is outlined below. 3.8.1 Core Samples Core samples are only selected from intervals of drill core that represent a single kimberlite facies and have suffered no core losses as a consequence of the drilling process. The core is selected either as a single run or as each alternate metre length. Sufficient core is selected so as the sample is approximately 100kg in weight. A number of selected pieces of core are used to determine the SG of the core. In addition the volume of the core is calculated using length and diameter measurements. The core is cleaned with a wet cloth to remove any adhering material and then bagged initially in standard calico sample bags which are then placed in plastic bags. The samples are tagged with an appropriate discriminating sample number for ongoing tracking and reference. The data is recorded on a sample card, which is dispatched to Perth for entry in the sample database.

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3.8.2 Rock Samples Large singular boulders of a specific kimberlite facies occasionally provide an opportunity for testing provided the origin of these boulders is known with certainty. In the case of Merlin the boulders will have been discarded at one of the open pits or at the ROM pad. In the latter case the origin of the boulder is less likely to be known. The boulder is moved to a cement pad, washed and weighed and placed on a tarpaulin. The boulder is then broken into smaller pieces using a hammer. The rock pieces are placed into a large bulka bag along with the fines which are swept up with a brush and pan. Using selected representative fragments the SG of the boulder is determined by the weighing in air and water technique. The sample is tagged with an appropriate discriminating sample number for ongoing tracking and reference. The data is recorded on a sample card, which is dispatched to Perth for entry in the sample database. 3.8.3 Pit Samples 1m3 The taking of 1m3 pit samples at Merlin is possible due to the previous mining operations, an example taken from Gawain is shown in Figure 3.1. Pit sample sites are selected so as they represent a single kimberlite facies. The surface is cleaned, levelled and the proposed pit is marked out. The sample is dug by hand using a pick and shovel and depending on the hardness of the material the pit dimensions may be 1m by 1m and 1m deep, 1m by 2m and 0.5m deep or some other variation. The sample is required to be contiguous and be approximately 1m3 in volume. The sample is placed directly into a bulka bag, tied closed and tagged with an appropriate discriminating sample number for ongoing tracking and reference. The pit is measured and the volume calculated. Using a metal barrel of known volume a small sample is collected and weighed and the SG of the material is calculated. The data is recorded on a sample card, which is dispatched to Perth for entry in the sample database.

Figure 3.1 1m3 sample taken from Gawain

3.8.4 Pit Samples 100m3 The taking of 100m3 pit samples at Merlin is possible due to the previous mining operations, an example taken from Gawain is show in Figure 3.2. Pit sample sites are selected so as they represent a single kimberlite facies, the surface is cleaned, levelled and the proposed pit is marked out. The sample is dug using an excavator and the sample placed directly into a truck, so as to avoid rehandling and minimise spillage. The pit is ‘squared’ and the base scraped clean using the excavator bucket, and is then measured using a tape. The dimensions of the surface and base are made along with the depths for each side. From these calculations the volume of the excavated pit is calculated. Using a metal barrel of known volume a small sample is collected and weighed and the SG of the material is calculated. The weight of the sample is also recorded by the truck. The sample is transported to the ROM pad and placed on a prepared pad which has been sheeted with previously processed float material which has high country rock content. The data is recorded on a sample card, which is dispatched to Perth for entry in the sample database.

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Figure 3.2 100m3 sample taken from Gawain

3.8.5 ROM Samples The taking and processing of ROM samples at Merlin is possible due to the previous mining operations. The ROM samples are differentiated by pipe and when appropriate by kimberlite facies. The sample material is excavated in the pits using an excavator, sometimes loaded directly into a truck but more often stockpiled either within the pit or at a staging point away from the pit. No volume measurement of the material excavated was done, but truck weights were measured when possible. Ultimately the material was transported to the ROM pad and stockpiled for future processing. The material was not placed on a contamination free surface. Prior to processing and due to the high moisture contents the material was spread out to encourage drying.

3.9 Sample Processing and Laboratory Procedures The standard procedures used both in the field and the laboratory for processing samples is outlined below. 3.9.1 Core Samples Core samples are weighed, crushed and digested in acid and fused in caustic to release the diamonds. The diamonds are then recovered by microscopic observation. 3.9.2 Rock Samples Rock samples are weighed, crushed and digested in acid and fused in caustic to release the diamonds. The diamonds are then recovered by microscopic observation. 3.9.3 Pit Samples 1m3

Pit samples of 1m3 are measured volumetrically and weighed, washed to remove dissolvable clays, crushed and then digested in acid and fused in caustic to release the diamonds. The diamonds are then recovered by microscopic observation. 3.9.4 Pit Samples 100m3

Pit samples of 100m3 are measured volumetrically and weighed, but due to their size require processing by DMS plant, with the diamonds recovered by hand sorting.

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3.9.5 ROM Samples ROM samples are usually difficult to measure volumetrically but weights are recorded prior to processing by DMS plant with the diamonds recovered by hand sorting.

3.10 Surveying The surveying of pits and drill hole collars are all tied into the national grid. All drill hole collars have been located by ground survey and the majority of drill holes have downhole surveys.

3.11 Data Spacing and distribution Because of the nature of kimberlite pipes their geometry can be defined with relatively few drill holes sufficient for the establishment of Indicated and Inferred Resource categories. However, there has been insufficient drilling to identify different kimberlite facies spatially within the pipes when present and hence the pipes are treated as single lithologies. This has a significant bearing on why there are no resources in the Measured JORC category.

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4 EVALUATION 1993-1998

4.1 Introduction Following discovery of the Merlin diamond field three significant phases of evaluation work were undertaken. These being two phases of RC Drill bulk testing which was followed by excavation of pit samples and a winze sample. The difficulties encountered in undertaking this work and the associated costs saw the project move to trial mining as a means of effectively evaluating the deposit. 4.2 Surface Delineation Following discovery the pipes were initially defined at surface by shallow RAB drilling. Costeaning was mostly ineffective due to the pipes being infilled with Cretaceous sandstones which were indistinguishable from the surrounding Bukulara Sandstone. 4.3 Phase 1 - 1994 RC Bulk Sampling A program of RC Drill bulk sampling was undertaken in 1994. The drill utilised a 215mm diameter roller bit and samples were collected in bulka bags. The moisture content of the samples was exceptionally high which created uncertainty in estimating dry weights for the samples. Eleven of the pipes were drill tested and a total 119.98 tonnes of material was collected and processed. All the holes were drilled from surface and apart from two holes all were vertical. The samples were processed through a MK3 DMS sampling plant located at Cape Crawford. Concentrates were hand sorted in the Ashton Laboratory in Perth. A total 607 diamonds were recovered weighing collectively 35.8 carats. Details of this sampling are shown in Table 4. 1. Although the diamond numbers recovered were recorded only total carat weights for the samples is available, rendering the data unsuitable for detailed grade model analysis. 4.4 Phase 2 - 1995 RC Bulk Sampling A second program of RC Drill bulk sampling was undertaken in 1995. The program was similar to that undertaken in 1994 with the exception that the drill utilised both 215mm diameter and 315mm diameter roller bits. Ten of the pipes including the E.Mu pipes were drilled during the program and a total 262.3 tonnes of material was collected and processed. The samples were processed through a MK3 DMS sampling plant located at Merlin and the concentrates were hand sorted in the Ashton Laboratory in Perth. A total 1,875 diamonds were recovered weighing collectively 57.74 carats. Details of this sampling are shown in Table 4.2. Although the diamond numbers recovered were recorded only total carat weights for the samples is available, rendering the data unsuitable for detailed grade model analysis. 4.5 Phase 3 - 1996 Bulk Sampling The phase 3 bulk sampling was limited to the pipes Palomides, Sacramore, Launfal and Excalibur. The sampling was done by way of open pitting and in the case of Palomides a winze was also sunk. A total 5,260 tonnes was excavated and processed resulting in the recovery of 29,222 diamonds for a total weight of 2,361.5 carats. Details of this sampling are summarised in Table 4.3. It was found that the grades varied radially across the pipes, increasing from the centre to the country rock contact. In Palomides the grades ranged from 17 to 34cpht, in Launfal the range was 28 to 133cpht and in Excalibur the range 35 to 124cpht. At the time there was no geological explanation for this variation. However it is now believed to be due to the uneven development of surface enrichment

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which is a consequence of solution weathering. With hindsight this has rendered the sample results unsuitable for grade estimation and is an explanation for the large variations of -43% to +322% between the RC drill bulk sample results and the subsequent open pit bulk sample results. Only total carat weights and total diamond numbers for the samples is available, rendering the data unsuitable for detailed grade model analysis.

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5 MINING AND TESTING OPERATIONS 1998-2003

5.1 Introduction The Merlin mining operation commenced in 1998 and ceased mid 2003. In total 2,237,447 tonnes of kimberlite were processed, with 507,000 carats of diamonds recovered. 5.2 Summary of Past Operations The operations are summarised in Table 5.1. Table 5.1: Summary of total production 1998 - 2003

PIPE PROCESS WET TONNES GRADE CT/T CARATS

RECOVERED Excalibur 365,398 0.36 131,346 Palomides 258,657 0.19 48,613 Sacramore 258,633 0.18 46,599

Launfal/ Launfal North 371,422 0.19 71,887 Gareth 160,864 0.19 30,043 Gawain 103,795 0.34 35,493 Ywain 14,422 0.61 8,771 Kaye 188,875 0.09 16,760 Ector 288,455 0.07 18,970

Tailings/other 15,779 TOTAL 2,010,521 0.21 424,261

Ref: Mine management Plan 2002-2003 The numbers in this table were mine site generated and are at odds with other reports of carats sold and recorded process tonnes. The reconstructed summary is provided in the following Table 5.1, which provides a more accurate assessment of the mining activities. Table 5.2 : Reconstructed summary of past mining operations 1998 - 2003

*Excludes Tailings Ref: Reddicliffe, T.H. (1995) Supplementary Report to the Australian Diamond Exploration Summary of Exploration Activity Report.

PIPE MINED BCM

PROCESS TONNES

PROCESS BCM

CARATS RECOVERED

GRADE CT/T

Excalibur 174,852 368,845 171,862 125,390 0.34 Palomides 195,529 373,458 180,354 66,771 0.18 Sacramore 174,431 351,976 170,572 59,409 0.17

Launfal 186,981 345,895 158,516 67,326 0.19 Launfal North 28,770 58,594 27,141 18,158 0.31

Gareth 94,803 191,372 90,024 46,810 0.25 Gawain 49,536 103,795 49,536 35,954 0.35 Ywain 6,890 14,422 14,422 8,567 0.59 Kaye 90,548 185,648 87,615 20,364 0.11 Ector 114,051 243,442 114,051 19,056 0.80

Tailings/other 137,106 52,420 39,625 TOTAL 1,116,391 2,237,447* 1,108,981 507,000 0.23

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5.3 Resource on Closure On closure of the project in 2003 the remaining insitu resources were reported as follows;

Table 5.3: Inferred Resource Summary 2003

Pipe From RL

To RL BD t/m3 BCM Tonnes Grade

ct/t Carats

PalSac 130 -147 2.32 2,642,700 6,141,000 0.19 1,146,000 Launfal 123 -75 2.29 666,300 1,453,000 0.21 312,000

Launfal Nth 123 50 1.79 19,800 35,000 0.26 9,000 Kaye 160 7 2.32 1,318,100 3,125,000 0.09 286,000

Excalibur 100 -50 2.22 267,700 594,000 0.33 196,000 Gareth 153 51 2.11 190,300 402,000 0.20 80,000 TOTAL 2.19 5,104,900 11,750,000 0.17 2,029,000

Ref: Mine management Plan 2002-2003

5.4 Results of Past Mining Operations The data from the mining operations conducted during the period 1998 to 2003 was collated in 4 separate data sets. Although related the data sets are not easily integrated. A detailed summary of the trial mining results is shown in Tables 5.4 to 5.55 5.4.1 Mine Site Records The mine site records provided the surveyed mined volumes, calculated mined tonnes, processed tonnes and the recovered diamonds for each mined flitch. The flitch volumes and associated diamond recoveries are shown in Tables 5.4 to 5.20. Mined Volumes/Tonnes - The mined volumes were recorded up until late 2002, after which there are no survey records. This affects the lower portion of Gawain pit for which there is no survey data. Generally the surveyed volumes are considered to be very reliable. The mined tonnes on the other hand were calculated using numerous bulk density determinations with no adjustment for moisture content. Processed Tonnes – The processed tonnes are those recorded by the plant weightometer. Not all of the material mined was processed as large boulders and material that was too clayey was rejected and is now part of the ROM pad. The measured tonnes are all wet tonnes as no adjustment was made for moisture content. In some instances water was added to the feed material to assist the sizer in dealing with binding clays. The recorded processed tonnes cannot be reconciled with the calculated mined tonnes with 1,785,487 tonnes recorded as being mined and 2,376,314 tonnes reported as being processed. Diamond Recoveries – The diamond recoveries are reported in 3 size categories, -25ct to +6ct,-6ct to +3ct, -3ct to +1.2ct. These diamond size categories are of little use in determining size-frequency distribution and there is no explanation as to the purpose of this sizing. Total diamond recoveries of 484,298.77cts were reported in site records compared to the 507,000cts reported as being sold. 5.4.2 Perth Sorthouse Records The Perth Sorthouse received the diamonds from site and cleaned them in acid prior to sizing the diamonds using DTC sieves. This dataset is shown in tables 5.7 to 5.20 which reports both carats and stone numbers per DTC size category. It will be seen that in the early days of the operation the +12 DTC to +23 DTC diamonds were reported as a single size fraction. This did not change until the year 2000 for most of the production, and renders much of the early data unsuitable for detailed analysis.

43

In numerous instances the reported diamonds do not match those reported as being recovered at site. Gawain and Ywain are a good example in that very little of the production has been recorded. Records show that 389,962.69cts were sized compared to the 507,000cts reported as being sold, and the 484,298.77cts reported in the mine site records. 5.4.3 Pre-sale Valuation Records Prior to sale the diamonds were resized according to weight, with the results shown in Tables 5.21 to 5.50. Unfortunately stone numbers per weight category are not reported perhaps because they were never recorded. This data accounts for only 299,981.99 carats of the total 507,000 carats of diamonds that were reported sold. The diamonds are recorded by both month and pipe and cannot be related back to any specific mined flitch. In only a few instances can this data be reconciled with the Sorthouse DTC sizing records. It is not known whether the valuation prices were achieved when the diamonds were sold. 5.4.4 Sales Total sales of 507,000cts were reported with the gross carats assigned to their flitch of origin. Because selling can be an intricate process, there are no records as to how the diamonds were presented for sale or what sale prices were achieved. Details of the diamond qualities, and gross sale parcels are shown in Tables 5.51 to 5.55. 5.5 Testing of PalSac In 2001 RIO undertook a substantial evaluation program comprising Large Diameter Core (LDC) drilling and bulk sampling within PalSac to a depth of 100m beneath the current pits. The program was aimed at providing information on grade and lithology for the pipe sufficient to allow economic modelling of a potential large open pit mining operation. 5.5.1 RIO LDC Drilling PalSac The LDC drilling program provided 74.482 tonnes of core in the interval from the base of the Palomides and Sacramore pits at approximately 100mRL to a depth of 100m, approximately 0mRL, beneath these pits. The cored material, representing 53 discrete samples, was crushed and processed producing 18.22 carats of diamonds. The recovery of fine diamonds was generally poor and one sample accounted for 24 of the 83 diamonds recovered suggesting a possible spurious result. Although three different phases of kimberlite are identified, these were not tested separately. The samples were processed through a Mk3 DMS plant located at the Argyle mine site. A summary of results is shown in Table 5.56. Individual bulk density measurements taken using core samples varied from 2.1 to 2.6 with an overall weighted average of 2.35. For comparison bulk densities were also calculated using the measured volumes and overall weight of the core, but these proved to be 1 to 5% greater than the bulk densites calculated using individual core pieces. Moisture contents varied from 1% to 11% with averages of 6.39% for the PLVKB lithology and 4.26% for the VK1 lithology. 5.5.2 RIO Bulk Sample PalSac As part of the PalSac evaluation a bulk sample was excavated and processed so as to provide a means to calibrate the LDC sample results. The first sample of 1000 tonnes was excavated from Palomides PLO137.5 flitchand transported to Argyle mine site for processing through the MK3 DMS plant that was used to process the LDC samples. This first sample was contaminated with Argyle diamonds and had to be abandoned. A second sample was excavated from flitch PLO130.0 in Palomides pit and processed in the same manner as the LDC samples. Although the excavated sample was measured at 750 BCM or approximately 1,500 tonnes, the processed sample is reported as 845.85 dry tonnes. No explanation for this variance is recorded. The sample was processed in two parts using different grade ferrosilicon namely 270D and 150D to compare their efficiency. For the purposes of establishing a grade the sample results are combined and treated as one. The 150D

44

sample has reported 4030 diamonds in the -3DTC size category, which is considered erroneous. A summary of results are shown in Table 5.57.

Site RecordMine Mill Tonnes (t)

Mining BD Mill BD Mining Process Diff Carats/Size Range (cts) GradePIPE BCM (t/m³) BCM (t/m³) Insitu Wet % -25+6 -6+3 -3+1.2 Total (ct/t)

Excalibur 173,452 1.98 168,942 2.18 343,625 368,845 7% 14,053.08 57,725.96 50,049.02 121,828.05 0.33Palomides 190,250 2.05 191,886 1.96 389,420 376,659 -3% 8,270.64 31,459.69 26,908.41 66,638.74 0.18Sacramore 174,431 1.96 169,897 2.07 342,372 351,976 3% 7,954.25 28,192.86 25,487.83 61,634.94 0.18Launfal 104,336 2.18 99,512 3.61 227,736 359,340 58% 8,072.75 35,519.87 29,030.24 72,622.86 0.20Launfal North 28,770 1.79 28,021 2.09 51,441 58,594 14% 1,580.41 7,222.28 4,890.56 13,693.25 0.23Gawain* 892 1.97 869 111.40 1,757 96,805 5410% 2,719.08 10,682.46 12,599.59 26,001.13 0.27Ywain 2,437 2.07 2,373 6.08 5,044 14,422 186% 986.88 2,995.73 4,101.40 8,084.01 0.56Kaye 54,739 2.05 53,316 3.33 111,993 177,753 59% 2,881.62 7,775.97 7,941.51 18,599.10 0.10Ector 71,986 2.70 71,986 3.38 194,214 243,442 25% 3,687.34 7,798.31 7,451.35 18,937.00 0.08Gareth 59,142 1.99 59,142 3.24 117,885 191,372 62% 4,430.43 15,596.93 19,828.82 39,856.18 0.21Recovered Tails 137,106 3,875.75 15,456.82 17,070.95 36,403.52 0.27Total 860,435 2.08 845,944 2.81 1,785,487 2,376,314 33% 58,512.23 220,426.87 205,359.68 484,298.770 0.20* Pit BCM's were not recorded in 2003

Sorthouse Records

Reconstructed Record Site Records Perth Sorthouse Classification/ Valuation Argyle SalesPIPE Mined

BCMProcess Tonnes

Process BCM

Carats Recovered

Grade Cts/tBatch weights cleaned, DTC Sized Sized by Weight, valued Export Sales

Excalibur 174,852 368,845 171,862 122,818.96 0.33 121,828.05 114,018.82 116,194.52 122,818.96Palomides 195,529 373,458 180,354 67,016.84 0.18 66,638.74 63,256.11 49,882.55 67,016.84Sacramore 174,431 351,976 170,572 61,981.33 0.18 61,634.94 53,990.14 48,547.59 61,981.33Launfal 186,981 345,895 158,516 67,080.23 0.19 72,622.86 36,027.08 30,969.08 67,080.23Launfal North 28,770 58,594 27,141 18,178.26 0.31 13,693.25 14,485.33 13,696.19 18,178.26Gawain 49,536 103,795 49,536 35,804.11 0.34 26,001.13 4,236.48 3,623.46 35,804.11Ywain 6,890 14,422 6,890 8,567.81 0.59 8,084.01 6,057.81 5,680.72 8,567.81Kaye 90,548 185,648 87,615 20,364.70 0.11 18,599.10 17,483.08 10,471.97 20,364.70Ector 114,051 243,442 114,051 19,056.60 0.08 18,937.00 18,852.11 2,545.55 19,056.60Gareth 94,803 191,372 90,024 46,941.95 0.25 39,856.18 40,989.44 6,469.38 46,941.95Tailings / Other 137,106 39,625 0.29 36,403.52 20,566.30 11,900.98 39,625.49TOTAL 1,116,391 2,374,553 1,056,561 507,436.28 0.21 484,298.770 389,962.69 299,981.99 507,436.28

Receiving house Records Clearing house Records

Table 5.4. Summary of Merlin Production

TABLE 5.5: Value per Carat by Pipe

112

99.76

133.93

110.52

121.42

105.9

90.27

101109.94

95.74

140

0

20

40

60

80

100

120

140

160

Ywain

Excali

burLau

nfal N

orth

Launfal

Sacram

orePalo

mides

Gareth

Tails (

MR)

Kay

Ector

Gawain

US$

per

car

at

EXCALIBUR GARETH

Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCM Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCMXC01600 2,147 119.79 0.06 1.96 1,095 0.11 GR01600 10,135 2,165.79 0.21 2.00 5,068 0.43XC01500 18,522 5,670.92 0.31 1.96 9,450 0.60 GR01500 46,851 9,186.42 0.20 2.03 23,079 0.40XC01400 87,462 26,555.40 0.30 1.93 45,317 0.59 GR01400 35,597 9,168.83 0.26 1.96 18,162 0.50XC01300 83,294 26,436.17 0.32 1.95 42,715 0.62 GR01300 34,986 6,868.53 0.20 1.97 17,759 0.39XC01200 73,627 25,910.38 0.35 2.03 36,269 0.71 GR01200 24,331 4,864.46 0.20 2.00 12,166 0.40XC01100 57,087 22,460.48 0.39 2.01 28,401 0.79 GR01130 24,106 4,395.33 0.18 2.00 12,053 0.36XC01000 46,706 14,794.61 0.32 2.02 23,122 0.64 GR01030 15,348 3,072.87 0.20 2.00 7,674 0.40

Total 368,845 121,947.75 0.33 1.96 186,370 0.65 Total 191,354 39,722.23 0.21 1.99 95,960 0.41

LAUNFAL LAUNFAL NORTH

Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCM Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCMLN01700 30,545 10,326.90 0.34 2.0 15,349 0.67 LF01500 4,464 1,328.83 0.30 1.9 2,400 0.55LN01600 41,596 10,292.97 0.25 2.0 21,008 0.49 LF01400 18,393 5,263.97 0.29 1.8 10,451 0.50LN01500 33,446 5,880.67 0.18 2.0 16,807 0.35 LF01300 20,704 4,194.97 0.25 1.8 11,502 0.36LN01400 26,520 5,278.90 0.22 1.9 13,958 0.38 LF01230 15,197 2,905.48 0.28 1.7 8,784 0.33LN01300 42,790 8,626.18 0.12 1.8 23,511 0.37 Total 58,758 13,693.25 0.23 1.8 33,137 0.41LN01200 44,004 8,677.84 0.20 1.7 25,290 0.34LN01100 41,229 10,563.10 0.26 2.2 18,912 0.56LN01000 42,363 6,431.40 0.15 2.2 19,433 0.33LN00950 14,173 2,445.10 0.17 2.2 6,501 0.38LN00850 38,270 4,099.80 0.11 2.2 17,555 0.23

Total 354,936 72,622.86 0.20 2.01 178,324 0.41

PALOMIDES SACRAMORE

Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCM Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCMPL01710 51,918.00 10,966.75 0.21 1.98 26,221 0.42 SC01700 66,648.00 13,948.80 0.21 1.91 34,894 0.40PL01600 72,554.00 12,723.73 0.18 2.13 34,063 0.37 SC01620 51,679.00 6,245.41 0.12 1.89 27,343 0.23PL01510 61,589.00 11,172.86 0.18 2.21 27,868 0.40 SC01500 67,722.00 13,231.79 0.20 1.94 34,908 0.38PL01400 62,498.00 10,806.89 0.17 2.08 30,047 0.36 SC01400 55,032.00 8,508.46 0.15 1.94 28,367 0.30PL01300 56,008.00 9,606.71 0.17 1.88 29,791 0.32 SC01300 47,173.00 6,890.50 0.15 2.15 21,941 0.31PL01200 48,194.00 7,523.26 0.16 1.96 24,589 0.31 SC01200 37,127.00 7,097.59 0.19 2.03 18,289 0.39PL01140 23,897.00 3,838.54 0.16 1.78 13,425 0.29 SC01150 13,029.00 3,378.85 0.26 1.97 6,614 0.51

Total 376,658.00 66,638.74 0.18 2.01 186,005 0.36 SC01050 13,566.00 2,333.54 0.17 1.97 6,886 0.34Total 351,976.00 61,634.94 0.18 1.98 179,243 0.34

KAYE ECTOR

Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCM Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCMKY01600 86,236.00 8,903.25 0.10 2.0 43,118 0.21 CT01600 93,782.00 7,494.14 0.08 2.0 46,891 0.16KY01530 91,517.00 9,695.85 0.11 2.0 45,759 0.21 CT01550 20,381.00 1,819.11 0.09 2.0 10,191 0.18TOTAL 177,753.00 18,599.10 0.10 2.0 88,877 0.21 TOTAL 114,163.00 9,313.25 0.08 2.0 57,082 0.16

GAWAIN YWAIN

Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCM Flitch Wet Tonnes Carats Grade/Tonne SG BCM Grade/BCMGW1620 32,078 9,159.03 0.29 1.80 17,821 0.51 YW01700 4,148.00 2,008.78 0.48 2.07 2,004 1.00GW1500 64,727 16,842.10 0.26 1.80 35,959 0.47 YW01600 5,684.00 3,019.53 0.53 2.07 2,746 1.10

Total 96,805 26,001 0.27 1.80 53,781 0.48 YW01520 4,590.00 2,965.70 0.65 2.07 2,217 1.34Total 14,422.00 7,994.01 0.55 2.07 6,967 1.15

Table 5.6: Summary Site Record of Production by Flitch 1999-2003

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00DTC Sieve Size Total Carats Selected* XCO1480 XC01450 XC01425 XCO1400 XCO1375 XCO1350 XCO1330 XC01300 XCO1280 XCO1250 XCO1230 XCO1200 XCO1180 XCO1150 XCO1130 XCO1100 XC01080* XC01050* XC01000*

+23 109.20 109.195 0 57.13 25.04 27.025+21 398.41 362.975 35.43 82.33 117.53 163.115+19 820.47 787.605 32.865 325.52 185.74 276.345+17 449.52 436.7 12.82 90.77 173.72 172.21+15 557.02 528.405 28.615 151.2 162.295 214.91+13 1,679.34 1632.06 47.275 486.98 503.305 641.775+12 40,514.77 1045.595 1713.5 3406.955 3391.515 2957.545 3065.02 2916.967 2378.115 3045.185 2582.17 3232.985 1893.59 1528.935 1915.505 2043.96 1722.261 1674.97 286.335 340.435 418.825+11 16,896.52 2082.61 677.765 1218.9 1342.565 1011.18 1231.755 939.73 803.935 1147.465 899.57 1087.16 684.955 614.93 675.395 967.565 750.05 760.985 664.8 613.75 804.06+9 21,869.77 2948.355 818.865 1552.22 1588.61 1198.145 1489.185 1275.584 935.9 1385.265 1497.755 1432.88 960.96 841.115 783.935 1272.16 881.205 1007.635 1173.285 812.595 962.475+7 13,028.24 1848.81 466.995 964.665 825.835 767.45 878.975 631.64 618.63 674.495 860.913 882.495 594.565 521.23 497.31 791.165 633.99 569.08 686.895 505.73 656.185+5 15,264.38 2519.12 375.775 776.465 592.785 598.24 679.725 681.275 497.68 553.215 1135.18 1043.565 613.07 849.76 721.73 1342.83 1073.68 1210.285 1057.47 693.185 768.465+3 2,468.21 510.745 13.09 29.84 114.87 25.245 23.369 73.125 15.455 17.505 173.21 127.17 71.68 233.89 156.44 342.61 220.27 319.7 252.77 110.5 147.475‐3 182.98 41.615 0 0.355 5.19 1.69 0.72 6.11 0.18 0.64 0 2.105 1.3 1.205 23.43 34.76 8.635 55.045 22.995 9.145 9.475

Total 114,081.82 14853.79 4065.99 7949.4 7861.37 6559.495 7368.749 6524.431 5249.895 6823.77 7148.798 7808.36 4820.12 4591.065 4773.745 6795.05 5290.091 5597.7 5338.48 4252.97 5262.34

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00DTC Sieve Size Total Stones Selected* XCO1480 XC01450 XC01425 XCO1400 XCO1375 XCO1350 XCO1330 XC01300 XCO1280 XCO1250 XCO1230 XCO1200 XCO1180 XCO1150 XCO1130 XCO1100 XC01080* XC01050* XC01000*

+23 15 15 0 7 4 4+21 100 92 8 24 32 36+19 409 396 13 172 97 127+17 320 311 9 60 126 125+15 476 453 23 127 148 178+13 2,140 2081 59 636 622 823+12 42,551 1625 1766 3307 3429 3156 2967 2928 2500 3259 2544 3218 2017 1581 1983 2508 1819 1944 151 673 801+11 50,544 5963 2070 3603 3826 3047 3723 2843 2459 3591 3084 2683 2046 1892 2081 3136 2184 2313 1831 1819 2313+9 114,092 16222 4007 7595 7864 5631 8149 7558 5798 6566 7316 6644 4962 4599 4089 6982 4664 5446 7067 4259 4896+7 19,090 16426 4 307 325 7 0 407 0 470 0 0 111 1 0 1032 0 0 6668 4259 5499+5 40,772 33486 0 189 690 9 0 2108 0 764 0 0 3 0 0 3523 0 0 12519 9899 11068+3 18,182 14266 0 37 328 10 0 1321 0 205 0 0 1 1 0 2013 0 0 7304 2982 3980‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 288,579 91336 7847 15038 16462 11860 14839 17165 10757 14855 12944 12545 9140 8074 8153 19194 8667 9703 36566 24920 29850

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation Sales DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSXCO1700 874.10 ADS#1 ‐ May 99 347.28 +23 109.195 0.0050 15 0.0007 7.28XCO1600 119.79 ADS#2 ‐ 7 June 1999 0.00 +21 362.975 0.0166 92 0.0042 3.95XC01530 785 227.49 227.49 0.29 ADS#3 ‐ 14 July 1999 5,443.43 +19 787.605 0.0360 396 0.0181 1.99XC01500 9,050 5,443.43 5,443.43 0.60 ADS#4 ‐ Sept / Oct 1999 0.00 +17 436.7 0.0200 311 0.0142 1.40XCO1480 8,390 4,066.43 4,065.99 4,066.43 0.48 ADS#5 ‐ Nov / Dec 1999 0.00 +15 528.405 0.0242 453 0.0207 1.17XCO1450 12,928 7,959.35 7,949.40 7,959.37 0.62 ADS#6 ‐ 28 Feb 2000 26,681.00 26,682.38 +13 1632.06 0.0746 2081 0.0952 0.78XCO1425 9,987 7,860.82 7,861.37 7,860.82 0.79 ADS#7 ‐ 8 May 2000 30,059.00 30,061.07 +12 1045.595 0.0478 1625 0.0743 0.64XCO1400 10,635 6,668.89 6,559.50 6,668.89 0.63 ADS#8 ‐ 12 July 2000 21,368.00 21,322.09 +11 2082.61 0.0953 5963 0.2727 0.35XCO1375 10,247 7,450.75 7,368.75 7,450.75 0.73 ADS#9 ‐ 23 Aug 2000 21,154.00 21,154.70 +9 2948.355 0.1348 16222 0.7420 0.18XCO1350 10,399 6,552.43 6,524.43 6,552.43 0.63 ADS#10 ‐ 2 Oct 2000 271.00 384.56 +7 1848.81 0.0846 16426 0.7513 0.11XCO1330 7,620 5,452.19 5,249.90 5,452.19 0.72 ADS#11 ‐ 29 Nov 2000 6,371.00 6,256.11 +5 2519.12 0.1152 33486 1.5316 0.08XC01300 10,502 6,980.80 6,823.77 6,980.80 0.66 ADS#12 ‐ 2001 10,067.00 10,068.46 +3 510.745 0.0234 14266 0.6525 0.04XCO1280 8,801 7,170.10 7,148.80 7,170.10 0.81 ADS#13 ‐ 2001 225.00 224.78 ‐3 41.615 0.0019 0 0 0XCO1250 9,887 7,763.58 7,808.36 7,763.58 0.79 ADS#14 ‐ 2001 0.00 Total 14853.79 0.68 91336XCO1230 6,089 4,793.75 4,820.12 4,793.75 0.79 ADS#15 ‐ 2001 0.00XCO1200 8,392 6,182.95 4,591.07 6,182.95 0.74 ADS#16 ‐ 2002 0.00XCO1180 6,455 4,777.47 4,773.75 4,774.47 0.74 ADS#17 ‐ 2002 0.00XCO1150 8,075 6,795.19 6,795.05 6,795.19 0.84 ADS#18 ‐ 2002 0.00XCO1130 5,873 5,290.10 5,290.09 5,290.10 0.90 ADS#19 ‐ 2003 874.10XCO1100 7,473 5,597.72 5,597.70 5,597.72 0.75 116,196.00 122,818.96XCO1080 6888.96 5247.91 5338.48 5247.91 0.76XCO1050 6738 4288.31 4252.97 4288.31 0.64XCO1000 8237 5258.39 5262.34 5258.39 0.64TOTAL 173,452 121,828.05 114,081.82 122,818.96 0.71SELECTED 21863.96 14794.61 14853.79 14794.61 0.68

TABLE 5.7: EXCALIBUR Sorthouse Sizing Record

Carats Carats Stones

CARATS FLITCHDate received Sorthouse

STONES FLITCHDate received Sorthouse

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00 6‐Jul‐01 7-Mar-02 13-Mar-02DTC Sieve Size Total Carats Selected* PLO1996 PLO1740 PLO1710 PLO1680 PLO1650 PL01630* PL01600* PL01575* PL01550* PL01510* PL01480* PL01450* PL01430* PL01400* PL01375* PL01350* PL01330* PL01300* PL01250* PL01200* PL01150* PL01140*

+23 981.27 981.27 40.705 36.775 30.435 41.76 52.205 103.535 83.075 35.94 40.305 132.885 123.770 5.760 23.685 95.405 86.89 48.14 0+21 1,897.26 1897.26 109.2 109.09 118.85 109.175 144.070 137.025 83.23 90.175 74.645 70.025 119.755 105.940 102.180 219.915 208.63 70.745 24.61+19 3,295.29 3295.29 138.775 174.125 186.175 243.885 373.500 210.065 162.965 150.885 119.69 187.03 203.590 205.425 103.690 312.475 270.83 172.72 79.47+17 2,269.37 2269.37 118.53 143.285 173.485 108.445 206.175 207.9 120.785 94.115 123.095 73.14 126.590 92.755 88.455 148.05 218.07 126.92 99.58+15 1,684.02 1684.02 91.27 88.875 129.295 106.535 168.090 105 96.26 66.67 66.42 143.57 90.130 77.870 59.845 144.415 102.64 89.47 57.665+13 4,984.80 4984.8 233.46 310.575 354.08 301.685 501.140 354.37 340.93 269.515 252.535 202.945 250.615 278.625 206.370 368.63 428.30 262.245 68.78+12 10,603.53 3960.66 250.15 769.74 2321.325 1711.335 1590.315 221.665 231.62 253.425 214.36 423.225 296.24 246.96 242.01 219.56 155.645 175.090 198.825 156.540 259.015 285.59 212.955 167.935+11 8,987.78 6722.19 72.36 246.64 767.975 610.82 567.795 322.635 458.115 475.495 422.225 715.810 431.68 413.105 348.245 296.81 315.315 371.585 345.260 267.535 491.255 613.46 326.175 107.49+9 10,693.58 8104.655 75.54 304.075 937.885 675.81 595.615 399.435 578.195 525.575 540.515 849.660 573.095 570.425 362.265 340.84 372.755 370.260 407.070 329.775 599.945 666.56 410.565 207.725+7 7,042.98 5551.3 51.605 159.03 523.17 406.5 351.37 253.125 365.4 421.11 294.185 544.870 354.63 284.23 255.03 249.6 306.945 323.880 317.030 233.015 412.165 419.68 273.925 242.48+5 8,977.58 7667.675 53.03 149.995 507.65 362.45 236.78 425.71 532.615 569.775 484.29 758.790 439.24 357.525 431.805 378.875 401.46 419.870 399.340 266.470 733.77 591.82 294.27 182.055+3 1,658.72 1478.825 2.885 7.625 23.975 138.345 7.069 80.335 123.635 102.715 86.2 133.700 66.485 52.645 68.805 68.725 103.525 70.410 74.325 50.575 87.455 48.35 49.03 211.915‐3 179.94 179.35 0.025 0 0.2 0.325 0.035 9.44 12.285 12.245 10.41 11.455 3.805 3.405 5.425 12.2 16.61 9.025 8.485 6.355 7.97 4.02 7.87 38.35

Total 63,256.11 48776.665 505.595 1637.105 5082.18 3905.585 3348.979 2444.285 3164.59 3352.66 2963.67 4882.69 3283.07 2815.54 2420.885 2243.3 2481.85 2654.57 2516.71 1894.49 3880.465 3944.81 2345.03 1488.055

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00 6‐Jul‐01 7-Mar-02 13-Mar-02DTC Sieve Size Total Stones Selected* PLO1996 PLO1740 PLO1710 PLO1680 PLO1650 PL01630* PL01600* PL01575* PL01550* PL01510* PL01480* PL01450* PL01430* PL01400* PL01375* PL01350* PL01330* PL01300* PL01250* PL01200* PL01150* PL01140*

+23 90 90 5 5 3 2 5 10 8 3 5 9 9 1 3 12 5 5 - +21 461 461 24 24 31 23 37 32 26 23 16 18 29 24 28 49 55 19 3 +19 1,519 1519 59 82 75 116 170 91 79 76 56 92 88 100 53 142 138 85 17 +17 1,600 1600 86 102 121 77 152 150 86 65 83 51 84 68 71 98 169 90 47 +15 1,569 1569 87 87 118 99 155 99 83 62 58 152 80 76 58 128 100 85 42 +13 6,579 6579 315 420 469 408 653 463 436 348 338 290 326 368 272 487 570 356 60 +12 14,651 7942 122 738 2381 1840 1628 452 468 509 427 845 611 488 528 505 322 363 403 306 510 562 425 218 +11 26,898 20424 200 757 2187 1817 1513 1051 1411 1547 1291 2188 1296 1267 1081 904 978 1148 1044 804 1418 1776 1,004 216 +9 53,773 41484 363 1505 4375 3281 2765 2061 3037 2850 2849 4381 3027 3153 1999 1804 1883 1864 2032 1637 2851 3338 2,094 624 +7 44,865 44476 380 0 9 0 0 2036 2961 3448 2396 4371 2964 2481 2146 2080 2494 2648 2449 1932 3229 3325 2,306 1,210 +5 104,064 103785 276 0 3 0 0 6161 7047 7981 7167 10475 6351 5125 6386 5670 5577 6315 5507 3336 5913 8853 4,499 1,422 +3 37,289 37238 50 1 0 0 0 2275 3078 3020 2477 3357 1769 1401 1974 2004 2687 2055 1930 1084 2267 1633 1,244 2,983 ‐3 1,098 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - 1,096

Total 240,950 214757.365 1393 3001 8955 6938 5906 0 0 0 17332 26789 16863 14633 14691 13523 14553 15009 14002 9584 17104 20524 12212 7938

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesPLO1996 1,480 505.52 505.60 505.52 0.34 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSPLO1750 8,484 3,902.41 3,902.41 0.46 ADS#2 ‐ 7 June 1999 3,902.41 +23 981.27 0.0067 90 0.0006 10.90PLO1740 3,287 1,637.04 1,637.11 1,637.04 0.50 ADS#3 ‐ 14 July 1999 +21 1897.26 0.0129 461 0.0031 4.12PLO1710 13,440 4,921.78 5,082.18 4,921.78 0.37 ADS#4 ‐ Sept / Oct 1999 2,242.13 0.00 +19 3295.29 0.0225 1519 0.0104 2.17PLO1700 378.10 0.00 ADS#5 ‐ Nov / Dec 1999 8,416.51 10,474.49 +17 2269.37 0.0155 1600 0.0109 1.42PLO1680 12,576 3,788.21 3,905.59 3,788.21 0.30 ADS#6 ‐ 28 Feb 2000 3,428.95 3,429.99 +15 1684.02 0.0115 1569 0.0107 1.07PLO1650 11,152 3,323.23 3,348.98 3,323.23 0.30 ADS#7 ‐ 8 May 2000 0.00 +13 4984.8 0.0340 6579 0.0449 0.76PLO1630 5445 2444.36 2444.285 2444.36 0.45 ADS#8 ‐ 12 July 2000 270.91 271.30 +12 3960.66 0.0270 7942 0.0542 0.50PLO1600 9304 3167.93 3164.59 3167.93 0.34 ADS#9 ‐ 23 Aug 2000 0.00 +11 6722.19 0.0459 20424 0.1393 0.33PLO1575 8819 3326.88 3352.66 3326.88 0.38 ADS#10 ‐ 2 Oct 2000 0.00 +9 8104.655 0.0553 41484 0.2830 0.20PLO1550 8330 2963.04 2963.67 2963.04 0.36 ADS#11 ‐ 29 Nov 2000 0.00 +7 5551.3 0.0379 44476 0.3034 0.12PLO1510 12542 4882.94 4882.69 4882.94 0.39 ADS#12 ‐ 2001 15,838.76 15,840.96 +5 7667.675 0.0523 103785 0.7080 0.07PLO1480 9639 3283.97 3283.07 3283.97 0.34 ADS#13 ‐ 2001 6,973.34 6,978.94 +3 1478.825 0.0101 37238 0.2540 0.04PLO1450 9233 2812.8 2815.54 2812.8 0.30 ADS#14 ‐ 2001 9,801.08 9,772.91 ‐3 179.35 0.0012 0 0 0PLO1430 6399 2466.98 2420.885 2466.98 0.39 ADS#15 ‐ 2001 103.69 133.62 Total 48776.665 0.33 268263PLO1400 7118 2243.14 2243.3 2243.14 0.32 ADS#16 ‐ 2002 2,807.18 2,808.83PLO1375 5937 2480.95 2481.85 2480.95 0.42 ADS#17 ‐ 2002 12,902.05PLO1350 7537 2653.44 2654.57 2653.44 0.35 ADS#18 ‐ 2002 66.73PLO1330 6848 2493.18 2516.71 2493.18 0.36 ADS#19 ‐ 2003 434.61PLO1300 5871 1979.14 1894.49 1891.98 0.32 49,882.55 67,016.84PLO1250 14271 3578.25 3880.465 3578.25 0.25PLO1200 11878 3945.01 3944.81 3945.01 0.33PLO1150 6759 2345.08 2345.03 2345.08 0.35PLO1140 10660 1493.46 1488.055 1580.62 0.15TOTAL 197,009 66,638.74 63,256.11 67,016.84SELECTED 146590 48560.55 48776.67 48560.55 0.33

Carats StonesCarats

TABLE 5.8: PALOMIDES Sorthouse Sizing Record



22‐Aug‐99 22‐Dec‐99 18‐Nov‐99 21‐Jun‐00 19‐Jul‐00 8‐Aug‐00 15‐Aug‐00 11‐Dec‐01 29‐Aug‐00 13‐Sep‐00 29‐Nov‐00 11‐Dec‐00 7‐Jan‐01 21‐Feb‐01 21‐Feb‐01 20‐Jul‐01 30‐Jul‐01 31‐Jul‐01 1‐Aug‐01 2‐Aug‐01 3‐Aug‐01 23-Sep-01DTCSieve Size Total Carats Selected* SCO1700 SC01675 SCO1650 SC01620 SC01580 SC01550 SC01530 SC01511 SC01500 SC01480* SC01450* SC01425* SC01400* SC01380* SC01350* SC01330* SC01300* SC01280* SC01250* SC01200* SC01150* SC01050*

+23 461.58 452.32 0 9.26 39.835 32.17 48.67 41.035 22.8 14.075 20.62 26.92 46.71 0 66.905 50.985 41.595+21 1,336.57 1318.805 6.29 11.475 111.835 103.525 98.895 86.35 106.565 106.585 86.33 66.83 32.785 51.4 179.89 205.41 82.405+19 2,927.44 2043.285 12.69 871.465 165.115 189.835 152.125 189.56 139.115 162.455 111.535 145.145 52.68 95.145 276.075 201.67 162.83+17 1,617.22 1246.71 0.9 369.61 83.34 67.275 68.43 81.415 67.15 92.91 72.56 100.705 55.33 81.325 260.85 122.385 93.035+15 1,442.13 1010.515 0 431.61 46.4 106.33 72.11 94.245 61.835 69.78 33.215 39.525 47.68 50.81 192.355 127.02 69.21+13 3,280.19 2952.475 9.265 318.445 214.17 187.1 226.96 252.895 201.95 203.68 127.4 197.515 108.755 169.02 524.8 317.205 221.025+12 11,860.22 2389.344 1977.545 1374.17 1320.26 460.23 1499.86 1464.375 826.34 9.195 538.905 168.265 210.824 171.185 242.805 186.27 191.375 100.77 130.17 91.99 152.11 369.91 225.405 148.265+11 7,030.97 3839.59 740.785 442.635 406.1 79.39 560.11 505.215 310.835 21.02 125.29 308.62 280.195 245.225 259.14 254.58 245.905 166.725 223.435 202.865 219.63 714.45 429.95 288.87+9 8,475.13 4685.716 803.575 490.596 441.005 101.395 732.84 704.335 456.895 4.265 54.51 410.285 455.775 292.385 382.49 304.01 331.155 197.49 258.931 155.55 281.69 724.54 576.83 314.585+7 8,092.79 3241.725 487.794 306.69 242.28 71.79 480.275 383.65 272.3 7.035 2599.25 233.995 277.12 221.29 215.97 191.09 188.02 150.385 209.545 112.58 213.31 501.355 466.885 260.18+5 8,349.68 5373.05 400.165 218.65 164.235 92.285 790.01 732.285 519.775 8.27 50.95 358.81 385.46 300.555 246.905 234.17 269.205 181.07 210.16 158.455 225.59 1966.995 532.875 302.8+3 1,060.58 632.94 12.59 5.49 2.24 23.26 147.045 112.54 107.435 1.26 15.78 72.43 60.84 37.8 26.675 27.385 37.65 28.825 28.64 29.215 33.845 83.145 97.295 69.195‐3 96.66 49.365 0.005 0 0 3 15.09 11.615 14.84 0.18 2.565 6.51 3.96 1.82 1.195 1.19 2.81 2.56 1.535 1.85 2 7.5 9.22 7.215

Total 53,990.14 29235.84 4422.459 2838.231 2576.12 831.35 4225.23 3914.015 2508.42 51.225 3387.25 2219.61 2360.409 1937.45 2120.68 1798.11 1915.605 1279.485 1639.056 1096.445 1575.875 5868.77 3363.135 2061.21

22‐Aug‐99 22‐Dec‐99 18‐Nov‐99 21‐Jun‐00 19‐Jul‐00 8‐Aug‐00 15‐Aug‐00 11‐Dec‐01 29‐Aug‐00 13‐Sep‐00 29‐Nov‐00 11‐Dec‐00 7‐Jan‐01 21‐Feb‐01 21‐Feb‐01 20‐Jul‐01 30‐Jul‐01 31‐Jul‐01 1‐Aug‐01 2‐Aug‐01 3‐Aug‐01 23-Sep-01DTCSieve Size Total Stones Selected* SCO1700 SC01675 SCO1650 SC01620 SC01580 SC01550 SC01530 SC01511 SC01500 SC01480* SC01450* SC01425* SC01400* SC01380* SC01350* SC01330* SC01300* SC01280* SC01250* SC01200* SC01150* SC01050*

+23 45 44 0 1 4 3 5 3 4 2 2 3 4 0 7 5 2+21 322 318 1 3 23 24 22 18 22 27 18 14 7 14 38 69 22+19 1844 910 6 928 74 74 69 88 65 66 50 64 24 42 126 93 75+17 1944 881 1 1062 59 48 51 54 45 63 48 69 41 56 192 88 67+15 3176 919 0 2257 42 116 61 79 56 58 34 35 45 48 173 107 65+13 6415 3883 12 2520 273 267 308 321 253 262 176 255 141 257 678 413 279+12 21627 4861 1929 1303 1260 314 1534 1521 855 18 8032 318 467 348 551 382 397 208 272 189 288 721 439 281+11 23120 11488 2062 1286 981 246 1646 1499 905 91 2916 923 901 733 807 748 732 509 699 603 669 2070 1251 843+9 41356 23496 3616 2277 1913 261 3574 3688 2275 18 238 2205 1916 1471 2139 1615 1787 992 1333 758 1360 3529 2865 1526+7 44862 26597 240 0 0 0 0 0 130 65 17830 2084 2291 1716 1891 1587 1660 1232 1785 963 1797 3956 3566 2069+5 57649 56134 0 0 0 0 0 0 592 136 787 5737 5517 4141 3605 3219 3827 2680 3186 2344 3418 7528 6489 4443+3 17973 17079 0 0 0 0 0 0 407 42 445 2147 1657 1022 736 732 1018 827 799 822 975 2306 2239 1799‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 213542 146610 7847 4866 4154 821 6754 6708 5164 370 30248 13889 13281 9947 10292 8728 9899 6776 8514 5941 8924 21324 17624 11471

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesSCO1750 12282 5367.26 5367.26 0.44 ADS#1 ‐ May 99 5,367.26 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSSCO1720 10405 4133.51 4133.51 0.40 ADS#2 ‐ 7 June 1999 +23 452.32 0.0058 44 0.0006 10.28SCO1700 10821 4448.03 4422.459 4448.03 0.41 ADS#3 ‐ 14 July 1999 +21 1318.805 0.0170 318 0.0041 4.15SCO1675 7933 2838.53 2838.231 2838.53 0.36 ADS#4 ‐ Sept / Oct 1999 4,135.17 4,133.51 +19 2043.285 0.0263 910 0.0117 2.25SCO1650 8240 2575.44 2576.12 2575.44 0.00 ADS#5 ‐ Nov / Dec 1999 7,195.82 7,201.95 +17 1246.71 0.0160 881 0.0113 1.42SCO1620 9577 831.44 831.35 831.44 0.09 ADS#6 ‐ 28 Feb 2000 2,660.10 2,660.05 +15 1010.515 0.0130 919 0.0118 1.10SCO1580 11277 4225.64 4225.23 4225.64 0.37 ADS#7 ‐ 8 May 2000 +13 2952.475 0.0380 3883 0.0499 0.76SC01550 10921 3921.91 3914.015 3921.91 0.36 ADS#8 ‐ 12 July 2000 +12 2389.344 0.0307 4861 0.0625 0.49SC01530 7654 2523.96 2508.42 2523.96 0.33 ADS#9 ‐ 23 Aug 2000 830.99 831.44 +11 3839.59 0.0494 11488 0.1477 0.33SCO1511 51.225 80.29 0.00 ADS#10 ‐ 2 Oct 2000 8,184.85 10,555.95 +9 4685.716 0.0602 23496 0.3021 0.20SC01500 7544 2560.28 3387.25 2560.28 0.34 ADS#11 ‐ 29 Nov 2000 5,520.69 3,151.49 +7 3241.725 0.0417 26597 0.3420 0.12

SC01480 6114 2220.55 2219.61 2220.55 0.36319104 ADS#12 ‐ 2001 3,972.83 3,973.89 +5 5373.05 0.0691 56134 0.7217 0.10SC01450 7416 2228.99 2360.409 2228.99 0.30056499 ADS#13 ‐ 2001 7,456.49 7,459.65 +3 632.94 0.0081 17079 0.2196 0.04SC01425 6495 1937.59 1937.45 1937.59 0.29832025 ADS#14 ‐ 2001 1,608.25 368.77 ‐3 49.365 0.0006 0 0 0SC01400 7047 2121.33 2120.68 2121.33 0.30102597 ADS#15 ‐ 2001 4,331.50 5,570.80 Total 29235.84 0.20 146610SC01380 6778 2047.43 1798.11 2047.43 0.30206993 ADS#16 ‐ 2002 2,650.90 2,651.80SC01350 6032 1924.56 1915.605 1924.56 0.31905836 ADS#17 ‐ 2002 5,338.79SC01330 4396 1279.57 1279.485 1279.57 0.29107598 ADS#18 ‐ 2002 55.65SC01300 5985 1638.94 1639.056 1638.94 0.27384127 ADS#19 ‐ 2003 2,660.33SC01280 3190 1096.57 1096.445 1096.57 0.34375235 48,547.59 61,981.33SC01250 4540 1555.72 1575.875 1555.72 0.3426696SC01200 7734 4445.3 5868.77 4445.3 0.57477373SC01150 7929 3378.85 3363.135 3378.85 0.42613823SC01050 4121 2333.54 2061.21 2333.54 0.56625576TOTAL 174431 61634.94 53990.14 61715.23

SELECTED 77777 28208.94 29235.84 28208.94 0.36

Carats StonesCarats

TABLE 5.9: SACRAMORE Sorthouse Sizing Record



1‐Mar‐00 16‐Jul‐99 1‐Mar‐00 21‐Oct‐99 1‐Mar‐00 29‐Mar‐00 29‐Mar‐00 19‐Apr‐00 3‐May‐00 7‐Jun‐00 28‐Jun‐00 4‐Jul‐00 19‐Jul‐00 16‐Nov‐01 21‐Jul‐00 22‐Jul‐00 21‐Jul‐00 16‐Nov‐01 28-Oct-02 29-Oct-02 10-Dec-02DTCSieve Size Total Carats Selected* LNO1660 LNO1635 LNO1600 LNO1590 LNO1560 LNO1530 LNO1500 LNO1480 LNO1450 LNO1430 LNO1400 LN01385 LN01350 LN01325* LN01300* LN01280* LN01250* LN01230* LN01200 LN01150 LN01050

+23 210.21 144.32 65.125 8.785 20.345 37.115 12.95 23.090 7.7 35.1+21 846.44 566.575 75.575 132.33 85.62 143.435 129.615 92.700 18.06 169.1+19 1,667.26 1145.965 471.5 111.26 123.06 257.215 182.93 294.590 56.8 169.9+17 749.54 438.665 71.745 48.445 62.56 125.16 130.755 147.440 37.83 125.6+15 610.46 329.655 62.69 56.51 43.79 107.505 59.16 147.900 30.3 102.6+13 1,739.27 979.27 203.845 150.36 122.14 249.045 253.88 378.700 92.7 288.6+12 9,802.95 694.445 603.76 787.015 33.235 635.925 614.71 579.62 2333.99 841.635 184.71 223.185 74.58 846.375 799.565 134.825 109.01 104.905 197.37 148.335 288.600 68.3 193.3+11 5,643.29 1241.65 184.74 243.455 14.095 228.505 245.12 284.605 923.26 314.44 224.25 84.35 10.815 344.265 352.44 254.27 200.34 163.14 331.895 292.005 474.200 119.9 353.2+9 7,219.38 1404.095 220.025 326.94 14.595 224.45 295.915 372.46 1271.41 399.625 309.46 473.625 18.17 365.02 564.985 283.025 235.155 202.675 367.6 315.64 439.800 122.4 396.4+7 4,644.55 1040.705 132.18 185.34 8.515 107.51 180.91 250.56 822.665 233.94 225.935 202.275 26.015 272.85 290.445 223.745 166.965 146.79 282.365 220.84 321.900 88.1 254.7+5 5,596.76 1108.23 123.11 201.74 7.045 75.025 179.06 225.33 825.555 373.55 338.66 390.125 39.09 406.61 602.33 258.885 200.16 165.93 264.165 219.09 348.800 98 254.5+3 832.24 163.91 7.205 13.185 0.195 1.455 21.175 13.085 115.205 85.055 84.98 83.04 14.48 82.51 74.855 45.255 31.51 23.745 35.135 28.265 18.600 17.9 35.4‐3 69.22 11.385 0.955 0.5 0 0 0 0 0 11.66 2.245 10.525 1.65 9.76 9.235 3.195 1.665 0.685 3.885 1.955 5.800 2.4 3.1

Total 36,027.08 5664.42 1271.975 1758.175 77.68 1272.87 1536.89 1725.66 6292.085 2259.905 1370.24 1467.125 184.8 2327.39 2693.855 1203.2 944.805 807.87 1482.415 1226.13 2982.12 760.39 2381.5

1‐Mar‐00 16‐Jul‐99 1‐Mar‐00 21‐Oct‐99 1‐Mar‐00 29‐Mar‐00 29‐Mar‐00 19‐Apr‐00 3‐May‐00 7‐Jun‐00 28‐Jun‐00 4‐Jul‐00 19‐Jul‐00 16‐Nov‐01 21‐Jul‐00 22‐Jul‐00 21‐Jul‐00 16‐Nov‐01 28-Oct-02 29-Oct-02 10-Dec-02DTCSieve Size Total Stones Selected* LNO1660 LNO1635 LNO1600 LNO1590 LNO1560 LNO1530 LNO1500 LNO1480 LNO1450 LNO1430 LNO1400 LN01385 LN01350 LN01325* LN01300* LN01280* LN01250* LN01230* LN01200 LN01150 LN01050

+23 28 20 8 2 3 5 2 4 1 3+21 187 127 19 28 19 29 32 20 5 35+19 602 364 74 46 55 111 78 133 26 79+17 596 310 50 31 43 91 95 100 25 161+15 547 291 54 46 42 100 49 134 33 89+13 2233 1251 245 178 151 349 328 492 123 367+12 9714 1321 556 737 35 596 749 659 625 900 304 345 46 856 903 246 195 189 397 294 566 139 377+11 14692 3544 549 702 41 659 799 871 638 937 750 355 35 1017 1061 699 517 459 985 884 1356 350 1028+9 31153 6826 1112 1318 73 900 1484 1824 1382 2058 1699 2096 107 2105 3061 1347 1081 993 1807 1598 2155 954 1999+7 15264 8514 5 1319 64 0 0 0 0 0 0 0 0 0 0 1760 1325 1219 2213 1997 2480 703 2179+5 25957 15667 3 24 0 0 0 0 0 0 0 0 0 0 0 3755 2878 2517 3369 3148 4973 1392 3898+3 7622 4480 0 19 0 0 0 0 0 0 0 0 0 0 0 1257 878 675 875 795 1552 497 1074‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 108595 42715 2225 4119 213 2155 3032 3354 2645 3895 2753 2796 188 3978 5025 9514 7205 6365 10331 9300 13965 4248 11289

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesLNO1996 2,166.00 1,272.12 1,272.12 0.59 ADS#1 ‐ May 99 5,783.13 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSLNO1730 8,955.00 5,783.13 5,783.13 0.65 ADS#2 ‐ 7 June 1999 3,825.82 +23 144.32 0.0059 20 0.0008 7.22LNO1700 5,966.00 3,271.65 3,271.65 0.55 ADS#3 ‐ 14 July 1999 4,559.03 +21 566.575 0.0230 127 0.0052 4.46LNO1670 6,082.00 3,405.89 1,271.98 3,222.76 0.53 ADS#4 ‐ Sept / Oct 1999 4,666.99 4,814.24 +19 1145.965 0.0466 364 0.0148 3.15LNO1635 6,654.00 3,775.44 1,758.18 3,795.75 0.00 ADS#5 ‐ Nov / Dec 1999 2,543.92 2,727.34 +17 438.665 0.0178 310 0.0126 1.42LNO1600 6,125.00 3,111.64 77.68 3,091.33 0.50 ADS#6 ‐ 28 Feb 2000 +15 329.655 0.0134 291 0.0118 1.13LNO1590 3,367.00 1,272.82 1,272.87 1,272.82 0.38 ADS#7 ‐ 8 May 2000 +13 979.27 0.0398 1251 0.0509 0.78LNO1560 4,426.00 1,546.04 1,536.89 1,545.94 0.35 ADS#8 ‐ 12 July 2000 8,087.62 8,088.36 +12 694.445 0.0282 1321 0.0537 0.53LNO1530 4,026.00 1,712.07 1,725.66 1,712.07 0.43 ADS#9 ‐ 23 Aug 2000 2,907.20 2,908.07 +11 1241.65 0.0505 3544 0.1441 0.35LNO1500 3,423.00 1,349.74 6,292.09 1,349.74 0.00 ADS#10 ‐ 2 Oct 2000 3,909.17 3,910.18 +9 1404.095 0.0571 6826 0.2776 0.21LNO1480 4,205.00 2,257.38 2,259.91 2,257.36 0.54 ADS#11 ‐ 29 Nov 2000 +7 1040.705 0.0423 8514 0.3463 0.12LNO1450 4,818.00 1,370.31 1,370.24 1,370.31 0.28 ADS#12 ‐ 2001 +5 1108.23 0.0451 15667 0.6372 0.07LNO1430 3,356.00 1,467.15 1,467.13 1,467.15 0.44 ADS#13 ‐ 2001 +3 163.91 0.0067 4480 0.1822 0.04LNO1400 5,335.00 184.06 184.80 184.06 0.03 ADS#14 ‐ 2001 ‐3 11.385 0.0005 0 0 0LNO1385 4,221.00 2,327.46 2,327.39 2,327.46 0.55 ADS#15 ‐ 2001 4,523.34 4,524.16 Total 9268.87 0.38 42715LNO1350 6,622.00 2,692.42 2,693.86 2,692.42 0.41 ADS#16 ‐ 2002 4,330.84 4,332.51LNO1325 4656 2153.71 1203.2 1855.75 0.40 ADS#17 ‐ 2002 99.51LNO1300 4952 1452.59 944.805 1440.42 0.29 ADS#18 ‐ 2002LNO1280 4118 1263.71 807.87 1263.71 0.31 ADS#19 ‐ 2003 21,507.88LNO1250 6369 2400.93 1482.415 2400.93 0.38 30,969.08 67,080.23LNO1230 4494 1995.37 1226.13 1995.37 0.44LNO1200 3,017.83 2,982.12 3,017.83LNO1150 759.38 760.39 759.38LNO1100 5,318.71 1,836.17LNO1050 1,371.00 2,381.50 3,752.40LNO1000 5,060.40 5,060.40LNO950 2,445.10 2,445.10LNO850 4,099.80 4,099.80TOTAL 104,336.00 68,137.85 36,027.08 54,938.03SELECTED 24589 9266.31 5664.42 8956.18 0.36

Carats StonesCarats

TABLE 5.10: LAUNFAL Sorthouse Sizing Record



29‐Mar‐00 12‐Apr‐00 3‐May‐00 7‐Jun‐00 7‐Jun‐00 2‐Aug‐00 8‐Aug‐00 27‐Sep‐01 18‐Sep‐01 11‐Aug‐00 11‐Dec‐01 12‐Aug‐00 28‐Oct‐02DTC Sieve Size Total Carats Selected* LFO1500 LFO1480 LFO1450 LFO1430 LFO1400 LF01385 LF01350 LF01325* LF01300* LF01280* LF01250* LF01230* LF01180

+23 0.00 0 0 0 0 0 0 0+21 143.13 109.74 25.96 27.2 10.5 34.13 11.95 33.39+19 762.18 241.16 33.75 60.74 51.52 55.79 39.36 521.02+17 504.89 203.39 37.28 17.29 32.65 58.41 57.76 301.5+15 360.02 165.225 29.895 27 29.485 38.765 40.08 194.79+13 1,187.78 638.475 100.485 128.87 102.67 205.2 101.25 549.3+12 4,777.99 499.28 781.155 517.87 498.74 808.545 672.405 484.925 77.53 95.765 113.25 74.845 114.5 100.92 437.54+11 2,577.29 779.155 186.72 140.855 174.74 239.52 254.62 207.715 19.575 112.81 169.745 124.385 230.525 141.69 574.39+9 2,807.08 789.745 196.09 133.705 161.03 214.185 253.825 172.82 190.275 115.925 178.63 124.18 226.92 144.09 695.4+7 1,812.32 568.8 90.485 86.88 79.35 101.41 159.91 115.365 119.525 89.76 129.535 95.335 165.955 88.215 490.6+5 2,151.87 584.12 70.705 95.055 105.09 165.52 267.105 187.745 167.33 93.045 137.645 96.955 164.685 91.79 509.2+3 325.00 78.355 6.69 21.25 20.37 26.695 54.46 4.06 21.92 12.56 17.545 12.195 24.8 11.255 91.2‐3 33.79 5.325 0 1.415 1.51 2.52 3.21 0.1 1.41 0.315 1.245 1.175 1.79 0.8 18.3

Total 14,485.33 3304.78 1331.845 997.03 1040.815 1558.395 1665.535 1172.73 597.565 520.18 747.595 529.07 929.175 578.76 2816.63

29‐Mar‐00 12‐Apr‐00 3‐May‐00 7‐Jun‐00 7‐Jun‐00 2‐Aug‐00 8‐Aug‐00 27‐Sep‐01 18‐Sep‐01 11‐Aug‐00 11‐Dec‐01 12‐Aug‐00 28‐Oct‐02DTC Sieve Size Total Stones Selected* LFO1500 LFO1480 LFO1450 LFO1430 LFO1400 LF01385 LF01350 LF01325* LF01300* LF01280* LF01250* LF01230* LF01180

+23 0 0 0 0 0 0 0 0+21 34 29 5 6 3 11 4 5+19 321 120 15 33 25 26 21 201+17 337 158 25 14 24 50 45 179+15 334 158 30 24 29 37 38 176+13 1589 864 131 168 131 294 140 725+12 5470 970 702 489 504 768 662 521 33 184 219 149 231 187 821+11 7682 2238 576 415 493 677 722 606 87 338 489 360 629 422 1868+9 14146 3982 916 675 829 1020 1455 858 1102 560 918 616 1168 720 3309+7 8520 4738 0 0 0 0 0 0 0 740 1102 788 1386 722 3782+5 15698 8284 0 0 0 0 0 0 0 1369 2081 1488 2151 1195 7414+3 4974 2234 0 0 0 0 0 0 0 364 479 363 731 297 2740‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 56490 22446 2194 1579 1826 2465 2839 1985 1222 3555 5288 3764 6296 3543 19934

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesLFO1630 1,029 0.00 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSLFO1500 2,400 1,328.83 1,331.85 1,328.83 0.55 ADS#2 ‐ 7 June 1999 +23 0 0.0000 0 0.0000LFO1480 1,611 996.06 997.03 996.06 0.62 ADS#3 ‐ 14 July 1999 +21 109.74 0.0091 29 0.0024 3.78LFO1450 2,397 1,040.78 1,040.82 1,040.78 0.43 ADS#4 ‐ Sept / Oct 1999 +19 241.16 0.0201 120 0.0100 2.01LFO1430 1,767 1,558.41 1,558.40 1,558.41 0.00 ADS#5 ‐ Nov / Dec 1999 +17 203.39 0.0169 158 0.0131 1.29LFO1400 2,599 1,668.72 1,665.54 1,668.72 0.64 ADS#6 ‐ 28 Feb 2000 +15 165.225 0.0137 158 0.0131 1.05LFO1385 1,798 1,172.83 1,172.73 1,172.83 0.65 ADS#7 ‐ 8 May 2000 +13 638.475 0.0531 864 0.0719 0.74LFO1350 3,152 1,265.93 597.57 1,265.93 0.40 ADS#8 ‐ 12 July 2000 3,371.02 3,365.67 +12 499.28 0.0415 970 0.0807 0.51LFO1325 2378 747.42 520.18 747.42 0.31 ADS#9 ‐ 23 Aug 2000 3,226.92 3,227.13 +11 779.155 0.0648 2238 0.1862 0.35LFO1300 2715 1008.79 747.595 1008.79 0.00 ADS#10 ‐ 2 Oct 2000 2,438.07 2,438.76 +9 789.745 0.0657 3982 0.3314 0.20LFO1280 2146.3 755.96 529.07 755.96 0.35 ADS#11 ‐ 29 Nov 2000 +7 568.8 0.0473 4738 0.3943 0.12LFO1250 2723 1320.43 929.175 1320.43 0.48 ADS#12 ‐ 2001 +5 584.12 0.0486 8284 0.6893 0.07LFO1230 2055 829.09 578.76 829.09 0.40 ADS#13 ‐ 2001 +3 78.355 0.0065 2234 0.1859 0.04LFO1200 ADS#14 ‐ 2001 ‐3 5.325 0.0004 0 0 0LFO1180 4,485.01 2,816.63 4,485.01 ADS#15 ‐ 2001 2,511.58 2,512.17 Total 3304.78 0.39 22446TOTAL 28,770.3 18,178.26 14,485.33 18,178.26 ADS#16 ‐ 2002 2,148.60 2,149.52SELECTED 12017.3 4661.69 3304.78 4661.69 0.39 ADS#17 ‐ 2002

ADS#18 ‐ 2002ADS#19 ‐ 2003 4,485.01

13,696.19 18,178.26

TABLE 5.11: LAUNFAL NORTH Sorthouse Sizing Record

CaratsCarats Stones



14‐Jul‐01 18‐Sep‐02 18‐Sep‐02 28‐Oct‐02DTC Sieve Size Selected* GW01690* GW01620* GW01600* GW01680*

+23 180.73 7.325 89.365 84.04 0+21 393.225 3.655 96.49 275.64 17.44+19 342.18 28.125 128.345 151.2 34.51+17 188.9 21.155 57.135 96.64 13.97+15 91.265 12.755 47.82 21.99 8.7+13 400.315 34.21 114.365 226.97 24.77+12 330.66 30.525 91.395 190.61 18.13+11 511.62 41.13 151.86 282.17 36.46+9 610.85 48.815 180.575 338.56 42.9+7 465.25 34.635 154.805 239.3 36.51+5 574.99 39.225 192.255 299.56 43.95+3 126.06 8.55 39.64 67.01 10.86‐3 20.435 1.1 3.945 13.18 2.21

Total 4236.48 311.205 1347.995 2286.87 290.41

14‐Jul‐01 18‐Sep‐02 18‐Sep‐02 28‐Oct‐02DTC Sieve Size Selected* GW01690* GW01620* GW01600* GW01680*

+23 25 1 10 14 0+21 133 2 22 105 4+19 187 13 60 100 14+17 153 15 45 82 11+15 105 14 40 43 8+13 530 47 161 290 32+12 669 61 193 375 40+11 1572 129 495 831 117+9 3105 258 933 1694 220+7 3649 289 1296 1741 323+5 8241 591 2968 3981 701+3 3435 235 1127 1728 345‐3 0 0 0 0 0

Total 21804 1655 7350 10984 1815

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesGWO1690 496 311.44 311.205 311.44 0.63 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSGWO1680 442.5 5222.5 290.41 5222.5 0.66 ADS#2 ‐ 7 June 1999 +23 180.73 0.0255 25 0.0035 7.23GWO1620 2435.5 1348.06 1347.995 1348.06 0.55 ADS#3 ‐ 14 July 1999 +21 393.225 0.0554 133 0.0187 2.96GWO1600 3726 2277.03 2286.87 10939.63 0.61 ADS#4 ‐ Sept / Oct 1999 +19 342.18 0.0482 187 0.0263 1.83GWO1500 32363.5 16,842.10 8,179.50 ADS#5 ‐ Nov / Dec 1999 +17 188.9 0.0266 153 0.0215 1.23GWO1400 9,802.98 ADS#6 ‐ 28 Feb 2000 +15 91.265 0.0129 105 0.0148 0.87TOTAL 39,463.50 26,001.13 4,236.48 35,804.11 ADS#7 ‐ 8 May 2000 +13 400.315 0.0564 530 0.0746 0.76SELECTED 7100 8847.59 3925.275 17510.19 0.55 ADS#8 ‐ 12 July 2000 +12 330.66 0.0466 669 0.0942 0.49

ADS#9 ‐ 23 Aug 2000 +11 511.62 0.0721 1572 0.2214 0.33ADS#10 ‐ 2 Oct 2000 +9 610.85 0.0860 3105 0.4373 0.20ADS#11 ‐ 29 Nov 2000 +7 465.25 0.0655 3649 0.5139 0.13ADS#12 ‐ 2001 +5 574.99 0.0810 8241 1.1607 0.07ADS#13 ‐ 2001 +3 126.06 0.0178 3435 0.4838 0.04ADS#14 ‐ 2001 311.44 ‐3 20.435 0.0029 0 0 0ADS#15 ‐ 2001 Total 4236.48 0.60 21804ADS#16 ‐ 2002ADS#17 ‐ 2002ADS#18 ‐ 2002ADS#19 ‐ 2003 3,623.00 35,492.67

3,623.00 35,804.11

Carats StonesCarats

TABLE 5.12: GAWAIN Sorthouse Sizing Record



19‐Jan‐00 16-Aug-02 16-Aug-02 15-Aug-02 23-Sep-02 23-Sep-02DTC Sieve Size Total Carats 16Aug‐23Sep YW01675 YW01650 YW01620 YW01600 YW01580 YW01520

+23 103.24 103.235 30.275 0 26.510 20.510 25.940+21 258.33 258.325 44.250 8.135 67.150 30.800 107.990+19 533.51 533.51 125.710 36.050 103.425 108.780 159.545+17 243.33 243.33 34.035 18.210 55.475 48.885 86.725+15 185.73 185.73 34.945 8.940 41.435 35.380 65.030+13 452.07 452.065 75.140 15.320 122.915 92.380 146.310+12 347.76 307.32 40.435 60.055 12.940 78.315 54.830 101.180+11 656.18 594.715 61.465 115.560 31.770 128.835 114.190 204.360+9 940.86 831.96 108.900 149.430 41.975 191.640 171.040 277.875+7 843.82 766.4 77.420 130.515 41.415 189.865 188.685 215.920+5 1,198.61 1103.345 95.260 200.095 62.230 277.550 355.120 208.350+3 253.52 244.64 8.875 47.130 14.215 67.430 74.075 41.790‐3 40.88 39.78 1.095 7.320 2.020 9.355 11.480 9.605

Total 6,057.81 5664.355 393.450 1054.460 293.220 1359.900 1306.155 1650.620

19‐Jan‐00 16-Aug-02 16-Aug-02 15-Aug-02 23-Sep-02 23-Sep-02DTC Sieve Size Total Stones 16Aug‐23Sep YW01675 YW01650 YW01620 YW01600 YW01580 YW01520

+23 12 12 4 3.00 3 2+21 64 64 13 2 17.00 6 26+19 243 243 60 14 54.00 48 67+17 173 173 27 13 43.00 33 57+15 172 172 34 9 37.00 35 57+13 612 612 103 24 164.00 127 194+12 758 673 85.00 130 33 178.00 120 212+11 2179 1955 224.00 384 108 436.00 372 655+9 5117 4497 620.00 813 226 1046.00 931 1481+7 6410 6410 0.00 1117 356 1590.00 1622 1725+5 16121 16121 0.00 2808 896 4424.00 5330 2663+3 6867 6867 0.00 1301 356 2044.00 2026 1140‐3 0 0 0 0 0 0 0 0

Total 38,728 37799 929 6794 2037 10036 10653 8279

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesYWO1775 830.76 DTC Sieve 16Aug‐23Sep Cts/BCM 16Aug‐23Sep St/BCM MSSYWO1700 2,000 1,178.02 ADS#2 ‐ 7 June 1999 +23 103.235 0.0242 12 0.0028 8.60YWO1675 630 393.45 877.25 1.39 ADS#3 ‐ 14 July 1999 1,960.20 +21 258.325 0.0606 64 0.0150 4.04YWO1650 840 1054.46 1054.57 1.26 ADS#4 ‐ Sept / Oct 1999 48.58 +19 533.51 0.1252 243 0.0570 2.20YWO1620 350 293.22 293.32 0.84 ADS#5 ‐ Nov / Dec 1999 +17 243.33 0.0571 173 0.0406 1.41YWO1600 880 1359.9 1368.16 1.55 ADS#6 ‐ 28 Feb 2000 +15 185.73 0.0436 172 0.0404 1.08YWO1580 850 1306.155 1306.06 1.54 ADS#7 ‐ 8 May 2000 +13 452.065 0.1061 612 0.1437 0.74YWO1520 1340 1650.62 1659.54 1.24 ADS#8 ‐ 12 July 2000 +12 307.32 0.0721 673 0.1580 0.46TOTAL 4,890 0.00 6,057.81 6,558.90 ADS#9 ‐ 23 Aug 2000 +11 594.715 0.1396 1955 0.4589 0.30SELECTED 4260 0 5664.355 5681.65 1.33 ADS#10 ‐ 2 Oct 2000 393.48 +9 831.96 0.1953 4497 1.0556 0.19

ADS#11 ‐ 29 Nov 2000 +7 766.4 0.1799 6410 1.5047 0.12ADS#12 ‐ 2001 +5 1103.345 0.2590 16121 3.7843 0.07ADS#13 ‐ 2001 +3 244.64 0.0574 6867 1.6120 0.04ADS#14 ‐ 2001 ‐3 39.78 0.0093 0 0 0ADS#15 ‐ 2001 Total 5664.355 1.33 37799 8.8730ADS#16 ‐ 2002ADS#17 ‐ 2002ADS#18 ‐ 2002ADS#19 ‐ 2003 5,681.00 6,165.55

5,681.00 8,567.81

ADS#1 ‐ May 99

TABLE 5.13: YWAIN Sorthouse Sizing Record



CaratsCarats Stones

28‐Aug‐02 28‐Aug‐02 19‐Sep‐00 15‐Aug‐01 16‐Aug‐02 17-Aug-02 28-Aug-02DTC Sieve Size Total Carats Selected* KY01640 KY01635* KY01600 KY01580* KY01560 KY01550* KY01530*

+23 495.73 432.26 92.820 63.475 38.48 185.720 115.235 +21 603.48 535.50 93.710 67.98 45.285 234.070 162.435 +19 832.53 771.47 191.220 61.065 56.405 271.595 252.245 +17 522.48 495.32 86.165 27.16 86.695 180.015 142.445 +15 454.11 425.54 79.430 28.57 59.14 172.145 114.820 +13 1,105.48 1026.61 189.630 78.87 126.455 411.490 299.035 +12 3,000.50 750.04 395.495 138.585 1493.715 119.385 361.255 302.695 189.370 +11 2,115.98 1353.05 118.205 254.425 530.01 182.05 114.715 545.590 370.980 +9 2,813.55 1601.99 117.760 317.555 672.345 229.52 421.455 611.945 442.965 +7 1,968.73 1316.29 86.280 246.300 481.82 188.31 84.340 510.150 371.525 +5 2,734.02 1799.32 115.990 316.690 789.24 235.455 29.470 719.245 527.930 +3 719.93 506.62 14.170 107.350 198.885 53.505 0.260 188.260 157.500 ‐3 116.58 84.43 0.375 19.830 31.775 5.22 0.000 28.730 30.650

Total 17,483.08 11098.40 848.275 2133.710 4524.91 1425.905 1011.495 4361.650 3177.135

28‐Aug‐02 28‐Aug‐02 19‐Sep‐00 15‐Aug‐01 16‐Aug‐02 17-Aug-02 28-Aug-02DTC Sieve Size Total Stones Selected* KY01640 KY01635* KY01600 KY01580* KY01560 KY01550* KY01530*

+23 44.00 38 8 6 3 18.00 9+21 139.00 125 19 14 15 58.00 33+19 371.00 343 77 28 27 132.00 107+17 643.00 623 58 20 65 404.00 96+15 388.00 361 64 27 55 148.00 94+13 1465.00 1359 247 106 187 549.00 376+12 3351.00 1468 243 267 1279 258 361 583.00 360+11 6384.00 4021 354 739 1596 565 413 1643.00 1074+9 13424.00 8616 595 1615 3516 1198 697 3010.00 2793+7 17850.00 13190 605 2021 4055 1567 4279.00 5323+5 37237.00 24474 4765 12763 3459 10302.00 5948+3 16323.00 10964 1282 5359 1349 5382.00 2951‐3 0.00 0 0 0 0 0.00 0

Total 97619 65582 1797 11162 28769 8748 1471 26508 19164

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesKYO1640 997.42 848.275 997.42 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM selected* St/BCM MSSKYO1635 9392 1451.67 2133.71 1451.61 0.15 ADS#2 ‐ 7 June 1999 +23 432.255 0.0089 38 0.0008 11.375132KYO1600 9085.00 1828.77 4524.91 6489.66 0.71 ADS#3 ‐ 14 July 1999 +21 535.5 0.0111 125 0.0026 4.284KYO1580 4291 1425.78 1425.905 1425.78 0.33 ADS#4 ‐ Sept / Oct 1999 2,826.93 2,826.19 +19 771.465 0.0160 343 0.0071 2.2491691KYO1560 5285.00 731.55 1011.50 731.55 0.14 ADS#5 ‐ Nov / Dec 1999 +17 495.32 0.0103 623 0.0129 0.7950562KYO1550 18944 4361.31 4361.65 4360.87 0.23 ADS#6 ‐ 28 Feb 2000 +15 425.535 0.0088 361 0.0075 1.1787673KYO1530 15680 3177.21 3177.135 3177.21 0.20 ADS#7 ‐ 8 May 2000 +13 1026.61 0.0213 1359 0.0281 0.7554157KYO1500 1730.60 ADS#8 ‐ 12 July 2000 +12 750.035 0.0155 1468 0.0304 0.510923TOTAL 62677.00 13973.71 17483.08 20364.70 ADS#9 ‐ 23 Aug 2000 +11 1353.045 0.0280 4021 0.0832 0.3364947SELECTED 48307 10415.97 11098.4 10415.47 0.22 ADS#10 ‐ 2 Oct 2000 +9 1601.985 0.0332 8616 0.1784 0.1859314

ADS#11 ‐ 29 Nov 2000 5,150.26 5,152.61 +7 1316.285 0.0272 13190 0.2730 0.0997942ADS#12 ‐ 2001 80.62 80.73 +5 1799.32 0.0372 24474 0.5066 0.0735197ADS#13 ‐ 2001 55.17 55.49 +3 506.615 0.0105 10964 0.2270 0.0462071ADS#14 ‐ 2001 1,452.64 1,256.82 ‐3 84.43 0.0017 0 0 0ADS#15 ‐ 2001 906.35 1,103.89 Total 11098.4 0.23 65582ADS#16 ‐ 2002ADS#17 ‐ 2002ADS#18 ‐ 2002 1,796.14ADS#19 ‐ 2003 8,092.83

10,471.97 20,364.70

STONES FLITCH

TABLE 5.14: KAYE Sorthouse Sizing Record


Carats StonesCarats

Date received Sorthouse

8‐Sep‐00 4‐Apr‐02 22‐Jun‐01 29‐Jul‐02 29‐Jul‐02 18‐Mar‐02 18‐Mar‐02 29‐Jul‐02 11‐Jun‐02DTC Sieve Size Total Carats Selected* CT01625 CT01700* CT01685* CT01600* CT01580 CT01680* CT01670* CT01650* CT01630*

+23 1,038.35 964.555 152.45 27.25 273.47 73.79 118.4 69.16 124.935 198.89+21 1,144.02 1062.32 118.4 55.835 198.3 81.7 121.39 57.93 163.195 347.27+19 1,584.61 1418.29 82.87 117.98 327.33 166.315 174.11 75.68 266.485 373.835+17 814.53 747.235 92.11 50.56 173.625 67.295 80.99 66.28 133.65 150.02+15 660.28 595.895 71.4 39.365 122.81 64.38 80.31 30.75 94.24 157.02+13 1,672.14 1463.8 162.75 108.35 334.05 208.335 196.77 81.54 238.305 342.035+12 1,802.02 1078.492 605.9 109.15 70.52 268.975 117.625 154.58 50.83 175.097 249.34+11 2,142.00 1778.251 167.275 160.03 128.155 415.465 196.47 256.93 88.37 291.235 438.066+9 2,478.63 2033.125 212.225 206.69 149.165 464.745 233.28 277.53 106.77 331.245 496.98+7 1,853.09 1532.83 142.1 150.17 111.315 363.775 178.16 208.26 85.5 249.95 363.86+5 2,709.53 2220.795 239.695 197.16 184.135 516.34 249.04 298.72 124.54 365.4 534.5+3 799.65 652.665 75.985 66.31 41.18 142.67 71 79.14 37.84 117.525 168‐3 153.29 130.445 13.4 12.91 4.605 35.22 9.445 17.36 5.66 19.71 34.98

Total 18,852.11 15678.698 1456.58 1582.4 1088.415 3636.775 1716.835 2064.49 880.85 2570.972 3854.796

8‐Sep‐00 4‐Apr‐02 22‐Jun‐01 29‐Jul‐02 29‐Jul‐02 18‐Mar‐02 18‐Mar‐02 29‐Jul‐02 11‐Jun‐02DTC Sieve Size Total Stones Selected* CT01625 CT01700* CT01685* CT01600* CT01580 CT01680* CT01670* CT01650* CT01630*

+23 82 77 11 3 18 5 11 5 12 17+21 256 236 26 14 46 20 30 12 36 72+19 688 621 34 45 143 67 75 33 118 173+17 564 521 61 33 121 43 55 48 98 105+15 597 542 61 33 116 55 71 34 85 142+13 2,102 1848 211 133 426 254 241 105 300 432+12 2,913 2081 607 208 137 527 225 294 95 340 480+11 6,250 5163 522 476 357 1,203 565 740 271 866 1250+9 12,410 10170 1120 1031 733 2,353 1,120 1339 529 1705 2480+7 15,181 12562 1183 1246 875 2,967 1,436 1669 728 2115 2962+5 40,444 33591 3163 2969 2772 7,966 3,690 4666 1719 6036 7463+3 20,077 16284 1749 1875 1207 2,208 2,044 2355 795 3587 4257‐3 0 0 0 0 0 0 0 0 0 0 0

Total 101,564 83696 8344 8209 6342 18094 9524 11546 4374 15298 19833

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesCT01700 2616 1582.38 1582.4 1582.38 0.60 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSCT01685 6567 1088.45 1088.415 1088.45 0.17 ADS#2 ‐ 7 June 1999 +23 964.555 0.013 77 0.001 12.53CT01680 9843 2064.59 2064.49 2064.59 0.21 ADS#3 ‐ 14 July 1999 +21 1062.32 0.015 236 0.003 4.50CT01670 4138 868.1 880.85 879.55 0.21 ADS#4 ‐ Sept / Oct 1999 +19 1418.29 0.020 621 0.009 2.28CT01650 16951 2563.62 2570.972 2563.56 0.15 ADS#5 ‐ Nov / Dec 1999 +17 747.235 0.010 521 0.007 1.43CT01630 11372 3856.93 3854.796 3854.77 0.34 ADS#6 ‐ 28 Feb 2000 +15 595.895 0.008 542 0.008 1.10CTO1625 9776 1456.61 1456.58 1456.61 0.15 ADS#7 ‐ 8 May 2000 +13 1463.8 0.020 1848 0.026 0.79CT01600 10723 3637.21 3636.775 3637.21 0.34 ADS#8 ‐ 12 July 2000 +12 1078.492 0.015 2081 0.029 0.52CT01580 1,573.59 1,716.84 1,683.96 ADS#9 ‐ 23 Aug 2000 +11 1778.251 0.025 5163 0.072 0.34CTO1550 245.52 245.52 ADS#10 ‐ 2 Oct 2000 +9 2033.125 0.028 10170 0.141 0.20

TOTAL 71,986 18,937.00 18,852.12 19,056.60 ADS#11 ‐ 29 Nov 2000 1,457.64 1,456.61 +7 1532.83 0.021 12562 0.175 0.12SELECTED 71986 17117.89 17135.278 17127.12 0.24 ADS#12 ‐ 2001 +5 2220.795 0.031 33591 0.467 0.07

ADS#13 ‐ 2001 +3 652.665 0.009 16284 0.226 0.04ADS#14 ‐ 2001 1,087.91 1,088.45 ‐3 130.445 0.002 0 0 0ADS#15 ‐ 2001 Total 15678.70 0.22 83696ADS#16 ‐ 2002ADS#17 ‐ 2002 3,336.24ADS#18 ‐ 2002 7,990.80ADS#19 ‐ 2003 5,184.50

2,545.55 19,056.60

Stones


STONES FLITCH

TABLE 5.15: ECTOR Sorthouse Sizing Record


CaratsCarats

19‐Jul‐00 19‐Jul‐00 4‐Oct‐00 22‐Jun‐01 23‐Jun‐01 24‐Jun‐01 25‐Jun‐01 26‐Jun‐01 6‐Mar‐02 7‐Mar‐02 29‐Jun‐01 1‐Jul‐01 11‐Jun‐02 3‐Jul‐01 4‐Jul‐01 23‐Sep‐02 28‐Oct‐02 28‐Oct‐02 28‐Oct‐02DTC Sieve Size Total Carats Selected* GR01635 GR01600 GR01550 GR01580* GR01530* GR01500* GR01480* GR01450* GR01430* GR01400* GR01380* GR01330* GR01300 GR01280 GR01250 GR01200 GR01150 GR01130 GR01030

+23 1,198.39 589.765 0.000 38.805 20.090 74.750 27.955 71.030 34.695 73.700 205.595 43.145 104.470 29.13 0 66.395 102.29 34.82 271.52+21 1,375.47 727.09 33.230 55.410 97.850 93.865 44.950 108.315 92.900 85.850 90.930 57.02 71.085 43.035 0 107.035 57.92 41.88 294.19+19 2,034.84 988.957 21.830 72.530 120.895 151.462 125.875 85.630 77.705 120.580 184.005 50.275 91.750 69.14 2.67 195.015 186.09 125.3 354.09+17 1,261.34 717.78 13.975 29.690 101.005 127.470 67.375 105.640 80.940 52.700 110.215 42.745 42.160 50.575 1.555 81.58 87.06 57.8 208.85+15 992.66 497.635 27.485 30.620 55.490 73.930 63.850 56.780 35.340 55.450 87.975 38.2 36.500 29.355 0 86.755 66.6 69.6 178.73+13 3,274.77 1731.37 38.965 92.425 148.935 240.545 199.550 235.165 178.835 216.490 313.140 106.285 156.580 98.89 1.09 227.57 235 199.4 585.9+12 4,480.48 1343.92 202.015 810.335 1051.920 62.075 120.670 217.590 142.325 183.945 123.100 161.025 240.660 92.53 118.510 79.4 1.48 157.185 171.8 156 387.91+11 5,128.96 2477.39 63.920 176.130 459.090 115.100 230.245 360.330 322.940 331.220 246.625 264.760 458.080 148.09 235.230 143.99 2.46 304.635 310 261.9 694.21+9 6,517.10 3251.945 68.580 218.215 625.575 148.160 281.275 536.475 377.260 466.285 319.840 363.640 564.875 194.135 311.250 178.235 4.03 354.525 347.4 354.2 803.14+7 5,221.68 2616.2 43.175 134.800 458.275 99.335 203.675 420.930 314.985 367.435 245.500 313.275 491.925 159.14 245.760 159.81 5.09 270.715 305.7 302.5 679.65+5 7,322.52 3551.475 37.235 222.035 904.420 146.530 256.990 512.275 415.390 458.640 367.645 461.685 716.275 216.045 396.010 236.88 14.945 356.85 362.5 395.4 844.77+3 1,790.26 940.87 0.920 56.215 169.270 28.450 36.330 82.860 135.360 70.485 140.625 141.300 244.815 60.645 125.755 74.345 7.21 77.28 68.2 78.1 192.09‐3 391.01 211.335 6.860 6.860 80.425 1.170 4.165 10.765 30.155 10.400 40.130 55.710 50.605 8.235 26.050 11.43 0.92 11.165 7.6 1.5 26.86

Total 40,989.44 19645.732 422.705 1624.590 3884.460 920.300 1677.615 2903.247 2267.97 2550.97 1983.880 2366.165 3759.095 1216.49 1961.11 1204.215 41.45 2296.705 2308.16 2078.4 5521.91

19‐Jul‐00 19‐Jul‐00 4‐Oct‐00 22‐Jun‐01 23‐Jun‐01 24‐Jun‐01 25‐Jun‐01 26‐Jun‐01 6‐Mar‐02 7‐Mar‐02 29‐Jun‐01 1‐Jul‐01 11‐Jun‐02 3‐Jul‐01 4‐Jul‐01 23‐Sep‐02 28‐Oct‐02 28‐Oct‐02 28‐Oct‐02DTC Sieve Size Total Stones Selected* GR01635 GR01600 GR01550 GR01580* GR01530* GR01500* GR01480* GR01450* GR01430* GR01400* GR01380* GR01330* GR01300 GR01280 GR01250 GR01200 GR01150 GR01130 GR01030

+23 98 44 0 2 2 8 3 6 3 6 9 5 8 4 0 6 10 4 22+21 313 167 8 12 21 24 10 23 23 19 22 13 16 9 0 23 14 11 65+19 912 440 11 34 55 69 57 42 29 51 79 24 50 37 1 82 75 57 159+17 905 520 10 25 75 96 44 80 54 38 73 35 32 40 1 57 63 40 142+15 972 474 4 29 55 80 54 60 36 49 75 36 34 30 0 76 120 65 169+13 4357 2333 51 118 195 350 273 324 236 277 406 154 212 134 1 291 299 265 771+12 6745 2736 191 646 1033 121 251 464 281 384 247 335 463 190 243 160 3 312 340 317 764+11 15402 7479 191 514 1460 331 699 1103 1007 1020 736 795 1329 459 723 438 9 891 882 784 2031+9 33384 16469 332 1172 3636 761 1409 2794 1934 2331 1599 1814 2798 1029 1632 897 22 1780 1712 1761 3971+7 42110 21132 1 0 4240 823 1538 3450 2627 2951 1952 2564 3915 1312 2022 1234 48 2126 2420 2416 6471+5 102991 51165 0 0 15537 2075 3179 7361 5858 6700 4697 7489 10861 2945 4506 3541 247 4890 5152 5685 12268+3 49412 26603 0 0 5513 739 946 2239 3812 1983 4205 4115 7196 1368 3822 2107 211 1942 1855 2069 5290‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 257601 129562 715 2332 31503 5070 8425 18038 15960 15904 13817 17552 27226 7570 13300 8631 543 12476 12942 13474 32123

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesGRO1635 1054 433.84 422.7 433.84 0.41 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSGR01600 3,621 1,731.95 1,624.59 1,731.95 0.48 ADS#2 ‐ 7 June 1999 +23 589.765 0.0140 44 0.0010 13.40GR01580 3501 920.6 920.3 920.26 0.26 ADS#3 ‐ 14 July 1999 +21 727.09 0.0173 167 0.0040 4.35GR01550 7,676 3,819.80 3,884.46 3,819.80 0.50 ADS#4 ‐ Sept / Oct 1999 +19 988.957 0.0235 440 0.0105 2.25GR01530 3672 1678.19 1677.615 1678.19 0.46 ADS#5 ‐ Nov / Dec 1999 433.84 +17 717.78 0.0171 520 0.0124 1.38GR01500 7399 2768.17 2903.247 2908.33 0.39 ADS#6 ‐ 28 Feb 2000 +15 497.635 0.0118 474 0.0113 1.05GR01480 4894 2267.69 2267.97 2267.7 0.46 ADS#7 ‐ 8 May 2000 +13 1731.37 0.0412 2333 0.0555 0.74GR01450 5503 2550.69 2550.97 2550.69 0.46 ADS#8 ‐ 12 July 2000 3,371.02 +12 1343.92 0.0320 2736 0.0651 0.49GR01430 4288 1983.89 1983.88 1983.89 0.46 ADS#9 ‐ 23 Aug 2000 3,226.92 +11 2477.39 0.0589 7479 0.1779 0.33GR01400 5490 2366.56 2366.165 2366.15 0.43 ADS#10 ‐ 2 Oct 2000 2,438.07 1,731.95 +9 3251.945 0.0774 16469 0.3918 0.20GR01380 3916 1715.8 3759.1 1715.8 0.44 ADS#11 ‐ 29 Nov 2000 3,440.70 +7 2616.2 0.0622 21132 0.5028 0.12GR01350 4,760 2,043.46 2,043.46 0.43 ADS#12 ‐ 2001 +5 3551.475 0.0845 51165 1.2173 0.07GRO1330 3368 1218.94 1216.49 1212.66 0.36 ADS#13 ‐ 2001 +3 940.87 0.0224 26603 0.6329 0.04GR01300 1,890.33 1,961.11 1,959.37 ADS#14 ‐ 2001 769.45 ‐3 211.335 0.0050 0 0 0GR01280 1,204.32 1,204.22 1,204.32 ADS#15 ‐ 2001 2,511.58 Total 19645.732 0.47 129562 3.08GR01250 1,363.43 41.45 1,363.43 ADS#16 ‐ 2002 2,148.60 529.91GR01200 2,296.71 2,296.71 2,296.71 ADS#17 ‐ 2002 14,551.21GR01150 2308.33 2308.16 2308.33 ADS#18 ‐ 2002 7,210.99GR01130 2087 2078.4 2087 ADS#19 ‐ 2003 18,273.90GRO1080 1452 1451.52 13,696.19 46,941.95GR01030 1621.35 5521.91 5521.05GRO960 1346.6GRO930 1409.1GRO2002 361.8TOTAL 59,142 39,723.05 40,989.44 46,941.95

SELECTED 42031 17470.53 19645.737 17603.67 0.42

STONES FLITCH

TABLE 5.16: GARETH Sorthouse Sizing Record

CARATS FLITCH



CaratsCarats Stones

7‐Jul‐00 7‐Jul‐00 11‐Sep‐00 1‐Nov‐00 5‐Jun‐01 23‐Jul‐01 12‐Sep‐02 13‐Mar‐02 14-Mar-02 15‐Mar‐02 27‐Mar‐02 17‐Mar‐02DTC Sieve Size Total Carats selected* MRO1996 MRO3006 MR03008 MR02610* MR01905* MR02307 MR01611* MR02502* MR02002* MR01510* MR01503* MR01307*

+23 251.03 251.025 0 8.47 38.245 22.985 6.33 0 153.96 0 11.435 9.6+21 559.09 559.091 0 0 54.08 71.7 4.26 0 374.216 5 12.015 37.82+19 929.91 912.46 15.835 8.99 159.275 82.745 17.4 1.61 572.82 1.9 28.62 40.71+17 615.50 598.7 16.795 0 120.33 41.36 8.17 0 392.135 2.18 10.635 23.89+15 428.00 417.535 10.46 0 45.655 39.13 2.4 0 289.805 2.02 13.915 24.61+13 1,381.24 1338.79 42.445 2.49 156.49 120.97 14.85 0 940.685 7.12 36.915 59.27+12 2,888.06 980.575 29.05 1834.695 43.735 7.095 125.025 77.56 14.55 0 670.105 6.51 31.98 47.75+11 2,617.04 1728.93 45.775 839.24 3.095 8.47 221.775 156.58 34.07 0 1145.395 8.62 68.1 85.92+9 3,348.79 2172.155 58.635 1104.815 13.05 12.235 279.47 212.155 73.92 0.13 1427.035 7.64 41.295 118.405+7 2,674.60 1851.755 50.99 767.935 3.505 12.925 197.665 250.27 70.525 0.41 1180.515 9.22 17.915 112.72+5 3,939.27 2606.06 57.94 1267.825 6.6 21.875 340.685 332.785 106.32 0.845 1612.465 8.2 25.99 157.74+3 889.30 630.838 10.245 244.75 2.95 5.08 72.36 61.725 27.355 0.52 428.458 1.36 9.93 24.57‐3 130.05 96.925 0.38 31.99 0.45 0.43 6.06 5.6 4.46 0.3 77.14 0.16 1.695 1.38

Total 20,651.84 20313.289 338.55 6091.25 73.385 88.06 1817.115 1475.565 384.61 3.815 9264.734 59.93 310.44 744.385

7‐Jul‐00 7‐Jul‐00 11‐Sep‐00 1‐Nov‐00 5‐Jun‐01 23‐Jul‐01 12‐Sep‐02 13‐Mar‐02 14-Mar-02 15‐Mar‐02 27‐Mar‐02 17‐Mar‐02DTC Sieve Size Total Stones selected* MRO1996 MRO3006 MR03008 MR02610* MR01905* MR02307 MR01611* MR02502* MR02002* MR01510* MR01503* MR01307*

+23 25 25 0 1 5 2 1 0 14 0 1 1+21 127 127 0 0 13 15 1 0 87 1 3 7+19 419 408 10 3 67 39 7 1 261 1 11 19+17 414 400 14 0 55 34 6 0 279 2 8 16+15 398 385 13 0 41 42 2 0 263 2 13 22+13 1,867 1805 62 2 213 177 21 0 1256 10 50 76+12 4,355 1995 66 2277 17 15 275 177 33 0 1329 14 64 88+11 8,109 5363 157 2579 10 33 717 530 131 0 3469 24 202 257+9 17,253 11193 313 5684 62 72 1536 1151 391 1 7219 42 179 603+7 15,610 15164 412 0 31 114 1618 2065 606 3 9610 81 150 920+5 39,036 38010 900 0 110 318 5028 4848 1608 16 23313 127 417 2351+3 17,378 16977 286 0 98 142 2044 1717 737 17 11303 42 295 697‐3 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total 102,758 102758 2233 10540 328 700 11612 10797 3544 38 58403 346 1393 5057

Flitch BCM mine rec sized sold Cts/BCM Export Sale Number Valuation SalesMRO1996 N/A 433.84 253.015 338.57 N/A ADS#1 ‐ May 99 DTC Sieve selected* Cts/BCM selected* St/BCM MSSMRO3006 N/A 1,731.95 6091.25 6091.96 N/A ADS#2 ‐ 7 June 1999 +23 251.025 25 10.04MRO3008 N/A 920.60 73.385 73.36 N/A ADS#3 ‐ 14 July 1999 1484.01 +21 559.091 127 4.40MRO2610 N/A 3,819.80 88.06 88.06 N/A ADS#4 ‐ Sept / Oct 1999 1,426.42 794.3 +19 912.46 408 2.24MRO1905 N/A 1,678.19 1,817.12 1,773.03 N/A ADS#5 ‐ Nov / Dec 1999 0 +17 598.7 400 1.50MRO2307 N/A 2,768.17 1,475.57 2,218.95 N/A ADS#6 ‐ 28 Feb 2000 0 +15 417.535 385 1.08MRO1611 N/A 2,267.69 384.61 379.80 N/A ADS#7 ‐ 8 May 2000 0 +13 1338.79 1805 0.74MRO2502 N/A 2,550.69 3.815 3.94 N/A ADS#8 ‐ 12 July 2000 0 +12 980.575 1995 0.49MRO2002 N/A 1,983.89 9264.734 14,918.35 N/A ADS#9 ‐ 23 Aug 2000 5,800.45 5801.3 +11 1728.93 5363 0.32MRO1510 N/A 2,366.56 59.93 59.99 N/A ADS#10 ‐ 2 Oct 2000 290.75 290.66 +9 2172.155 11193 0.19MRO1503 N/A 1,715.80 310.44 310.02 N/A ADS#11 ‐ 29 Nov 2000 73.35 73.36 +7 1851.755 15164 0.12MRO1307 N/A 2,043.46 744.385 N/A ADS#12 ‐ 2001 87.80 88.06 +5 2606.06 38010 0.07MRO1904 N/A 1,133.20 N/A ADS#13 ‐ 2001 0 +3 630.838 16977 0.04MRO2402 N/A 127.09 N/A ADS#14 ‐ 2001 2,567.23 1773.03 ‐3 96.925 0 0MRO2504 N/A 183.13 N/A ADS#15 ‐ 2001 1,270.73 2066.78 Total 14144.839 91852MRO1805 N/A 40.59 N/A ADS#16 ‐ 2002 818.21 818.76MRO2905 N/A 671.03 N/A ADS#17 ‐ 2002 1369.06MRO0706 N/A 123.27 N/A ADS#18 ‐ 2002 8216.67MRO0000 N/A 1245.11 N/A ADS#19 ‐ 2003 16849.5MRO2809 N/A 8499.71 N/A 12,334.94 39,625.49MRO2003 N/A 1346.33 N/A

24,280.64 20,566.30 39,625.49

Stones

Date received SorthouseCARATS

TABLE 5.17: MERLIN REJECTS Sorthouse Sizing Record

FLITCH

STONES FLITCH

CaratsCarats


STONES MERLIN MERLINDTC Sieve Size Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL AVERAGE Total Average Total Average Total Average

+23 15 90 44 20 25 12 38 77 44 365 41 169 42 37 19 159 53+21 92 461 318 127 133 64 125 236 167 1723 191 998 250 197 99 528 176+19 396 1519 910 364 187 243 343 621 440 5023 558 3189 797 430 215 1404 468+17 311 1600 881 310 153 173 623 521 520 5092 566 3102 776 326 163 1664 555+15 453 1569 919 291 105 172 361 542 474 4886 543 3232 808 277 139 1377 459+13 2081 6579 3883 1251 530 612 1359 1848 2333 20476 2275 13794 3449 1142 571 5540 1847+12 1625 7942 4861 1321 669 673 1468 2081 2736 23376 2597 15749 3937 1342 671 6285 2095+11 5963 20424 11488 3544 1572 1955 4021 5163 7479 61609 6845 41419 10355 3527 1764 16663 5554+9 16222 41484 23496 6826 3105 4497 8616 10170 16469 130885 14543 88028 22007 7602 3801 35255 11752+7 16426 44476 26597 8514 3649 6410 13190 12562 21132 152956 16995 96013 24003 10059 5030 46884 15628+5 33486 103785 56134 15667 8241 16121 24474 33591 51165 342664 38074 209072 52268 24362 12181 109230 36410+3 14266 37238 17079 4480 3435 6867 10964 16284 26603 137216 15246 73063 18266 10302 5151 53851 17950‐3 2448 10550 2904 670 1202 2340 4966 7673 12431 45185 5021 16571 4143 3542 1771 25071 8357

Total 93784 277717 149514 43385 23006 40139 70548 91369 141993 931456 103495 564399 141100 63145 31573 303911 101304

LOG STONES MERLIN MERLINDTC Sieve Size Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL AVERAGE Total Average Total Average Total Average

+23 1.176 1.954 1.643 1.301 1.398 1.079 1.580 1.886 1.643 2.562 1.608 2.228 1.626 1.568 1.267 2.201 1.724+21 1.964 2.664 2.502 2.104 2.124 1.806 2.097 2.373 2.223 3.236 2.282 2.999 2.397 2.294 1.993 2.723 2.246+19 2.598 3.182 2.959 2.561 2.272 2.386 2.535 2.793 2.643 3.701 2.747 3.504 2.902 2.633 2.332 3.147 2.670+17 2.493 3.204 2.945 2.491 2.185 2.238 2.794 2.717 2.716 3.707 2.753 3.492 2.890 2.513 2.212 3.221 2.744+15 2.656 3.196 2.963 2.464 2.021 2.236 2.558 2.734 2.676 3.689 2.735 3.509 2.907 2.442 2.141 3.139 2.662+13 3.318 3.818 3.589 3.097 2.724 2.787 3.133 3.267 3.368 4.311 3.357 4.140 3.538 3.058 2.757 3.744 3.266+12 3.211 3.900 3.687 3.121 2.825 2.828 3.167 3.318 3.437 4.369 3.415 4.197 3.595 3.128 2.827 3.798 3.321+11 3.775 4.310 4.060 3.549 3.196 3.291 3.604 3.713 3.874 4.790 3.835 4.617 4.015 3.547 3.246 4.222 3.745+9 4.210 4.618 4.371 3.834 3.492 3.653 3.935 4.007 4.217 5.117 4.163 4.945 4.343 3.881 3.580 4.547 4.070+7 4.216 4.648 4.425 3.930 3.562 3.807 4.120 4.099 4.325 5.185 4.230 4.982 4.380 4.003 3.702 4.671 4.194+5 4.525 5.016 4.749 4.195 3.916 4.207 4.389 4.526 4.709 5.535 4.581 5.320 4.718 4.387 4.086 5.038 4.561+3 4.154 4.571 4.232 3.651 3.536 3.837 4.040 4.212 4.425 5.137 4.183 4.864 4.262 4.013 3.712 4.731 4.254‐3 3.389 4.023 3.463 2.826 3.080 3.369 3.696 3.885 4.095 4.655 3.701 4.219 3.617 3.549 3.248 4.399 3.922

CARATS DTC Sieve Size Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL MSS

+23 109.20 981.27 452.32 144.32 180.73 103.24 432.255 964.56 589.77 3957.65 10.84+21 362.98 1897.26 1318.81 566.58 393.23 258.33 535.5 1,062.32 727.09 7122.08 4.13+19 787.61 3295.29 2043.29 1145.97 342.18 533.51 771.465 1,418.29 988.96 11326.55 2.25+17 436.70 2269.37 1246.71 438.67 188.90 243.33 495.32 747.24 717.78 6784.01 1.33+15 528.41 1684.02 1010.52 329.66 91.27 185.73 425.535 595.90 497.64 5348.66 1.09+13 1632.06 4984.80 2952.48 979.27 400.32 452.07 1026.61 1,463.80 1731.37 15622.77 0.76+12 1045.60 3960.66 2389.34 694.45 330.66 307.32 750.035 1,078.49 1343.92 11900.47 0.51+11 2082.61 6722.19 3839.59 1241.65 511.62 594.72 1353.045 1,778.25 2477.39 20601.06 0.33+9 2948.36 8104.66 4685.72 1404.10 610.85 831.96 1601.985 2,033.13 3251.95 25472.69 0.195+7 1848.81 5551.30 3241.73 1040.71 465.25 766.40 1316.285 1,532.83 2616.20 18379.51 0.120+5 2519.12 7667.68 5373.05 1108.23 574.99 1103.35 1799.32 2,220.80 3551.48 25918.00 0.076+3 510.75 1478.83 632.94 163.91 126.06 244.64 506.615 652.67 940.87 5257.27 0.038‐3 41.62 179.35 49.37 11.39 20.44 39.78 84.43 130.45 211.34 768.14 0.017

Total 14853.79 48776.67 29235.84 9268.87 4236.48 5664.36 11098.40 15678.70 19645.73 158458.83 0.17

CARATS/stone (MSS)DTC Sieve Size Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL

+23 7.28 10.90 10.28 7.22 7.23 8.60 11.38 12.53 13.40 10.84+21 3.95 4.12 4.15 4.46 2.96 4.04 4.28 4.50 4.35 4.13+19 1.99 2.17 2.25 3.15 1.83 2.20 2.25 2.28 2.25 2.25+17 1.40 1.42 1.42 1.42 1.23 1.41 0.80 1.43 1.38 1.33+15 1.17 1.07 1.10 1.13 0.87 1.08 1.18 1.10 1.05 1.09+13 0.78 0.76 0.76 0.78 0.76 0.74 0.76 0.79 0.74 0.763+12 0.64 0.50 0.49 0.53 0.49 0.46 0.51 0.52 0.49 0.509+11 0.35 0.33 0.33 0.35 0.33 0.30 0.34 0.34 0.33 0.334+9 0.18 0.20 0.20 0.21 0.20 0.19 0.19 0.20 0.20 0.195+7 0.11 0.12 0.12 0.12 0.13 0.12 0.10 0.12 0.12 0.120+5 0.08 0.07 0.10 0.07 0.07 0.07 0.07 0.07 0.07 0.076+3 0.04 0.04 0.04 0.04 0.04 0.04 0.05 0.04 0.04 0.038‐3 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.017

Total 17.98 21.72 21.24 19.48 16.14 19.25 21.91 23.95 24.44 21.71Average 0.16 0.18 0.20 0.21 0.18 0.14 0.16 0.17 0.14 0.17

SELECTED FLITCHES RIO PRODUCTION

Table 5.18: SIZE DISTRIBUTION COMPARISON


SELECTED PRODUCTION RIO PRODUCTION

Northern Cluster

Northern Cluster

Southern Cluster Ywain/Gawain

Southern Cluster Ywain/Gawain


log stone frequency

0.000

1.000

2.000

3.000

4.000

5.000

6.000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3

log st

Excalibur

Palomides

Sacramore

Launfal

Gawain

Kaye

Ector

Gareth

Ywain

log stone frequency

0.000

0.500

1.000

1.500

2.000

2.500

3.000

3.500

4.000

4.500

5.000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3

log st

Southern Cluster

Merlin Average

Gawain Ywain

Northern Cluster

PIPE Rejects Excal Sac Pal Ywain Gawain Kaye Ector Gareth Lau nth Laun Average All DTC Sieve Size St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct

+23 0.10 0.15 0.10 0.09 0.12 0.14 0.09 0.08 0.08 0.00 0.13 0.10+21 0.23 0.24 0.24 0.24 0.25 0.34 0.23 0.22 0.23 0.24 0.22 0.24+19 0.45 0.48 0.45 0.46 0.46 0.55 0.45 0.43 0.45 0.42 0.36 0.45+17 0.67 0.73 0.71 0.71 0.71 0.81 1.23 0.69 0.72 0.67 0.80 0.77+15 0.93 0.86 0.91 0.93 0.93 1.15 0.85 0.90 0.98 0.93 0.90 0.93+13 1.35 1.28 1.32 1.32 1.35 1.32 1.33 1.26 1.33 1.34 1.28 1.32+12 1.51 1.94 2.03 2.01 2.19 2.02 1.22 1.93 1.70 1.91 1.93 1.85+11 3.10 2.91 2.99 3.04 3.29 3.07 2.98 2.90 3.01 3.03 2.87 3.02+9 5.15 5.16 5.01 5.12 5.41 5.08 5.33 4.98 5.12 4.91 5.05 5.12+7 5.84 8.40 8.20 8.01 8.36 7.84 9.59 8.18 8.35 8.04 8.14 8.09+5 9.91 14.34 10.45 13.54 14.61 14.33 14.39 15.09 14.58 14.36 14.33 13.63+3 19.54 26.99 26.98 25.18 28.07 27.25 23.14 25.33 28.51 29.34 32.24 26.60‐3 0.00 0.00 0.00 6.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.56

Total st/ct 48.78 63.49 59.39 66.75 65.74 63.91 60.83 62.00 65.05 65.18 68.25 62.67Average st/ct 5.00 5.76 5.01 5.50 6.67 5.15 6.04 5.36 6.54 6.92 6.13 5.82

PIPE Rejects Excal Sac Pal* Ywain* Gawain* Kaye* Ector* Gareth* Lau nth* Laun* Average All DTC Sieve Size St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct St/ct

+23+21+19 0.45 0.48 0.45 0.46 0.46 0.55 0.45 0.43 0.45 0.42 0.36 0.45+17 0.67 0.73 0.71 0.71 0.71 0.81 1.23 0.69 0.72 0.67 0.80 0.77+15 0.93 0.86 0.91 0.93 0.93 1.15 0.85 0.90 0.98 0.93 0.90 0.93+13 1.35 1.28 1.32 1.32 1.35 1.32 1.33 1.26 1.33 1.34 1.28 1.32+12 1.51 1.94 2.03 2.01 2.19 2.02 1.22 1.93 1.70 1.91 1.93 1.85+11 3.10 2.91 2.99 3.04 3.29 3.07 2.98 2.90 3.01 3.03 2.87 3.02+9 5.15 5.16 5.01 5.12 5.41 5.08 5.33 4.98 5.12 4.91 5.05 5.12+7 5.84 8.40 8.20 8.01 8.36 7.84 9.59 8.18 8.35 8.04 8.14 8.09+5+3‐3

Total st/ct 19.00 21.77 21.62 21.59 22.69 21.85 22.99 21.28 21.65 21.25 21.32 21.55Average st/ct 3.25 3.60 3.41 3.43 3.76 3.39 3.65 3.14 3.74 3.18 3.14 3.43

FULL PROFILE

TRUNCATED PROFILE

TABLE 5.19: STONES PER CARAT - Full Profile

TABLE 5.20: STONES PER CARAT - Truncated

Ct Size Total Cts Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 Gaw‐03 Yw‐03Spec 3,332 122 180 77 172 121 85 429 136 186 416 105 32 733 422 67 5010cts 639 0 52 32 73 41 21 52 30 30 40 11 31 124 61 31 109cts 808 47 74 45 84 10 65 64 65 18 65 64 18 103 66 10 98cts 1,092 33 65 58 76 67 100 75 123 17 106 8 24 182 107 25 257cts 1,613 44 153 115 123 146 81 78 95 109 87 36 51 285 153 42 166cts 2,072 105 192 150 231 166 96 139 129 56 88 113 144 186 202 32 435cts 3,464 212 347 178 259 284 153 182 285 208 192 149 159 433 319 42 624cts 4,940 215 555 349 583 285 235 328 396 205 249 221 193 610 332 93 923cts 9,222 518 1,164 746 1,001 589 494 492 611 407 506 350 407 977 651 107 203

8-10gr 18,064 923 2,192 1,621 1,919 1,290 968 927 1,428 797 956 695 731 1,888 1,134 245 3516gr 12,943 682 1,480 1,293 1,369 1,068 623 665 1,065 562 623 468 499 1,391 761 151 2435gr 8,896 496 1,017 916 879 725 385 452 770 431 406 340 368 916 569 100 1244gr 18,077 877 1,950 1,863 1,753 1,579 888 972 1,545 772 864 736 759 2,027 1,048 215 2313gr 21,466 1,115 2,302 2,027 2,147 1,890 1,036 1,200 1,855 967 942 896 936 2,479 1,220 212 242+11 72,141 3,475 7,806 7,070 7,059 6,820 3,473 3,829 6,327 3,116 3,434 2,898 2,839 8,296 4,079 712 907+9 59,658 2,620 6,310 6,171 6,027 5,922 2,787 3,622 5,068 2,462 2,762 2,266 2,189 6,826 3,230 524 872+7 39,217 1,643 3,785 3,693 3,804 4,151 1,905 2,509 3,436 1,627 1,920 1,537 1,453 4,440 2,295 355 663+5 53,015 1,362 3,007 3,340 4,489 6,352 2,884 4,405 5,197 2,289 3,099 2,273 2,024 6,789 3,848 518 1,139+3 12,775 74 129 295 928 2,113 822 1,417 1,355 426 755 453 393 1,766 1,385 123 342-3 1,713 3 7 20 124 294 84 206 131 25 89 31 34 343 243 21 57

Total 345,147 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286 40,793 22,126 3,623 5,681

Ct Size % Cont Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 Gaw‐03 Yw‐03Spec 0.01 0.01 0.01 0.00 0.01 0.00 0.00 0.02 0.00 0.01 0.02 0.01 0.00 0.02 0.02 0.02 0.0110cts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.009cts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.008cts 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.01 0.007cts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.01 0.01 0.01 0.006cts 0.01 0.01 0.01 0.00 0.01 0.00 0.01 0.01 0.00 0.00 0.00 0.01 0.01 0.00 0.01 0.01 0.015cts 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.014cts 0.01 0.01 0.02 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.03 0.023cts 0.03 0.04 0.04 0.02 0.03 0.02 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.02 0.03 0.03 0.048‐10gr 0.05 0.06 0.07 0.05 0.06 0.04 0.06 0.04 0.05 0.05 0.05 0.05 0.06 0.05 0.05 0.07 0.066gr 0.04 0.05 0.05 0.04 0.04 0.03 0.04 0.03 0.04 0.04 0.04 0.03 0.04 0.03 0.03 0.04 0.045gr 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.03 0.03 0.02 0.02 0.03 0.02 0.03 0.03 0.024gr 0.05 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.05 0.05 0.05 0.05 0.06 0.05 0.05 0.06 0.043gr 0.06 0.08 0.07 0.07 0.06 0.06 0.06 0.05 0.06 0.07 0.05 0.07 0.07 0.06 0.06 0.06 0.04+11 0.21 0.24 0.24 0.24 0.21 0.20 0.20 0.17 0.21 0.21 0.20 0.21 0.21 0.20 0.18 0.20 0.16+9 0.17 0.18 0.19 0.21 0.18 0.17 0.16 0.16 0.17 0.17 0.16 0.17 0.16 0.17 0.15 0.14 0.15+7 0.11 0.11 0.12 0.12 0.11 0.12 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.11 0.10 0.10 0.12+5 0.15 0.09 0.09 0.11 0.14 0.19 0.17 0.20 0.17 0.16 0.18 0.17 0.15 0.17 0.17 0.14 0.20+3 0.04 0.01 0.00 0.01 0.03 0.06 0.05 0.06 0.05 0.03 0.04 0.03 0.03 0.04 0.06 0.03 0.06‐3 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.01 0.00 0.00 0.01 0.00 0.00 0.01 0.01 0.01 0.01

Total 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00

Ct Size Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 Gaw‐03 Yw‐03Spec 3,594,298.35$ 136,038.65 165,865.13 45,780.00 228,122.60 256,905.49 143,295.85 252,929.41 200,554.20 291,436.00 644,180.08 156,052.13 8,569.75 724,740.99 207,130.78 101,825.82 30,871.4710cts 805,449.72$ 0.00 54,735.04 76,758.69 97,041.87 89,774.49 19,445.01 52,786.17 7,181.87 76,359.97 53,133.10 3,174.96 72,926.46 106,099.37 26,557.94 57,037.92 12,436.889cts 989,155.74$ 92,969.92 85,609.30 52,919.36 150,399.69 9,309.58 123,996.82 77,996.58 88,627.41 43,928.09 36,309.31 51,742.28 15,898.28 62,772.66 67,905.21 19,638.51 9,132.758cts 1,040,106.44$ 45,393.17 36,790.35 56,422.19 57,151.75 103,215.66 99,501.63 73,506.67 142,055.88 33,729.82 121,395.78 23,900.75 15,670.26 117,195.38 90,393.94 13,951.56 9,831.657cts 1,410,292.45$ 27,715.23 154,301.76 88,911.41 168,126.97 134,936.82 137,400.79 33,783.04 102,930.91 88,463.24 92,415.58 60,460.57 78,536.89 111,320.23 81,918.58 37,204.15 11,866.296cts 1,647,493.82$ 132,308.92 155,515.34 117,032.65 187,546.56 159,600.07 81,391.47 122,597.85 80,994.30 35,114.66 92,443.71 93,241.64 107,892.33 106,069.08 124,089.18 25,627.11 26,028.955cts 2,091,680.45$ 159,979.57 287,187.45 96,658.79 164,372.45 245,471.59 95,804.10 106,972.29 183,711.63 100,132.35 113,876.06 102,126.94 73,876.60 177,796.84 127,482.09 31,567.68 24,664.014cts 2,227,929.55$ 107,731.15 248,181.56 168,513.22 311,454.26 155,372.91 145,089.42 145,888.72 211,729.76 130,473.29 103,075.22 113,423.43 99,175.86 149,551.80 83,552.33 23,104.70 31,611.933cts 3,256,523.89$ 181,092.99 451,321.59 291,588.53 386,565.38 257,553.69 223,860.29 191,557.51 217,823.95 155,083.92 155,805.80 139,785.25 131,782.10 228,603.41 154,985.11 30,387.60 58,726.778-10gr 4,249,603.42$ 227,796.22 560,089.30 415,288.40 517,154.02 373,225.38 280,115.58 209,575.07 333,766.34 191,458.33 209,799.38 188,021.97 145,062.07 289,624.54 177,618.28 59,660.80 71,347.756gr 1,931,568.76$ 98,974.89 250,537.34 214,948.22 228,747.92 175,919.06 121,208.15 87,614.06 164,651.52 86,293.60 79,248.72 85,427.03 65,034.18 128,787.50 88,380.71 23,556.29 32,239.605gr 1,106,021.12$ 56,704.47 154,180.27 118,922.95 115,678.20 102,810.38 59,175.24 60,389.70 94,648.20 57,197.40 46,421.13 48,463.93 38,824.54 74,239.27 54,359.35 10,426.70 13,579.384gr 1,801,484.63$ 84,308.75 219,018.32 206,183.12 191,426.16 181,810.94 112,892.21 102,966.77 154,627.10 79,428.81 75,167.72 81,730.99 75,424.41 116,957.18 80,902.09 17,484.50 21,155.553gr 1,515,110.57$ 80,808.97 189,242.28 151,835.55 156,950.84 156,570.98 87,954.46 86,659.68 128,800.55 65,277.72 63,812.97 71,201.21 62,348.22 121,716.44 65,334.49 12,399.34 14,196.86+11 3,231,314.86$ 157,760.97 396,821.33 322,175.10 328,194.14 336,482.75 192,267.15 172,189.55 278,418.69 142,736.60 143,936.74 152,032.82 124,953.86 270,477.88 147,189.55 29,555.43 36,122.32+9 2,027,267.06$ 90,840.13 241,726.22 225,876.21 230,699.00 222,712.81 107,697.61 123,405.19 158,118.60 81,831.15 86,241.92 86,104.75 72,654.61 163,945.98 88,038.47 18,074.35 29,300.06+7 893,032.28$ 39,436.81 101,434.83 78,552.68 98,562.11 105,706.53 48,824.41 53,060.42 72,913.03 37,633.43 39,819.49 39,856.45 34,439.99 75,348.91 42,692.82 8,281.16 16,469.21+5 931,465.20$ 26,195.68 64,032.71 63,972.04 91,109.73 128,776.42 55,507.77 74,236.85 84,673.67 35,877.77 48,990.42 45,075.07 36,814.96 91,833.21 54,349.82 9,698.87 20,320.20+3 126,476.96$ 728.15 1,279.58 2,916.14 9,182.65 20,917.02 8,142.65 14,024.34 13,415.99 4,215.52 7,474.90 4,481.93 3,890.80 17,487.16 13,715.46 1,221.76 3,382.93-3 5,137.53$ 9.90 20.88 60.51 372.06 881.43 252.66 617.85 391.89 74.13 267.78 93.27 102.93 1,029.30 728.49 62.88 171.57Total 34,881,412.79$ 1,746,794.53 3,817,890.57 2,795,315.75 3,718,858.35 3,217,954.00 2,143,823.28 2,042,757.72 2,720,035.47 1,736,745.78 2,213,815.82 1,546,397.37 1,263,879.09 3,135,597.13 1,777,324.66 530,767.12 473,456.13

TABLE 5.21: ALL PIPES CARATS

TABLE 5.22: ALL PIPES % CARAT CONTRIBUTION PER SIZE

TABLE 5.23: ALL PIPES VALUE

Ct Size Av Price/ct Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 Gaw‐03 Yw‐03Spec 1,079 1,119.0$ 920.1$ 594.3$ 1,329.3$ 2,121.8$ 1,692.4$ 589.1$ 1,476.2$ 1,567.4$ 1,549.0$ 1,487.9$ 268.4$ 989.3$ 491.0$ 1,517.1$ 615.5$ 10cts 1,260 -$ 1,048.4$ 2,415.3$ 1,335.6$ 2,178.5$ 943.5$ 1,018.6$ 240.1$ 2,508.5$ 1,312.6$ 294.3$ 2,324.0$ 858.8$ 435.4$ 1,827.6$ 1,237.5$ 9cts 1,224 1,993.8$ 1,159.5$ 1,167.9$ 1,783.5$ 978.9$ 1,899.8$ 1,210.0$ 1,366.0$ 2,378.3$ 561.7$ 804.7$ 864.5$ 608.6$ 1,029.3$ 2,012.1$ 1,012.5$ 8cts 953 1,371.8$ 564.0$ 976.5$ 750.6$ 1,546.1$ 996.5$ 975.0$ 1,155.6$ 1,929.6$ 1,147.5$ 2,943.4$ 645.7$ 644.7$ 841.5$ 569.5$ 393.4$ 7cts 874 635.5$ 1,005.6$ 770.0$ 1,363.1$ 926.1$ 1,695.1$ 432.0$ 1,085.3$ 809.6$ 1,067.8$ 1,700.7$ 1,553.6$ 391.0$ 535.1$ 879.1$ 763.1$ 6cts 795 1,258.2$ 809.1$ 780.3$ 813.6$ 960.3$ 849.7$ 879.9$ 625.6$ 625.3$ 1,050.7$ 825.3$ 751.5$ 571.3$ 613.5$ 813.0$ 602.7$ 5cts 604 754.0$ 826.7$ 541.7$ 635.8$ 863.0$ 627.5$ 586.7$ 643.6$ 481.8$ 593.9$ 684.6$ 464.6$ 411.1$ 399.9$ 760.7$ 397.4$ 4cts 451 502.1$ 447.1$ 483.1$ 534.0$ 545.8$ 616.6$ 445.3$ 535.3$ 638.0$ 414.0$ 512.8$ 512.7$ 245.0$ 251.9$ 248.6$ 343.9$ 3cts 353 349.7$ 387.6$ 390.9$ 386.3$ 437.0$ 453.4$ 389.6$ 356.4$ 381.1$ 308.1$ 399.3$ 323.9$ 234.0$ 238.0$ 285.1$ 290.0$ 8-10gr 235 246.7$ 255.5$ 256.2$ 269.5$ 289.4$ 289.3$ 226.2$ 233.8$ 240.4$ 219.5$ 270.5$ 198.4$ 153.4$ 156.7$ 243.6$ 203.2$ 6gr 149 145.1$ 169.3$ 166.3$ 167.1$ 164.7$ 194.5$ 131.7$ 154.6$ 153.6$ 127.3$ 182.6$ 130.2$ 92.6$ 116.1$ 156.5$ 132.6$ 5gr 124 114.3$ 151.6$ 129.8$ 131.6$ 141.8$ 153.8$ 133.7$ 122.9$ 132.6$ 114.2$ 142.7$ 105.5$ 81.0$ 95.5$ 104.5$ 109.1$ 4gr 100 96.1$ 112.3$ 110.7$ 109.2$ 115.1$ 127.1$ 106.0$ 100.1$ 102.9$ 87.0$ 111.1$ 99.4$ 57.7$ 77.2$ 81.2$ 91.8$ 3gr 71 72.5$ 82.2$ 74.9$ 73.1$ 82.8$ 84.9$ 72.2$ 69.4$ 67.5$ 67.7$ 79.5$ 66.6$ 49.1$ 53.6$ 58.4$ 58.8$ +11 45 45.4$ 50.8$ 45.6$ 46.5$ 49.3$ 55.4$ 45.0$ 44.0$ 45.8$ 41.9$ 52.5$ 44.0$ 32.6$ 36.1$ 41.5$ 39.8$ +9 34 34.7$ 38.3$ 36.6$ 38.3$ 37.6$ 38.6$ 34.1$ 31.2$ 33.2$ 31.2$ 38.0$ 33.2$ 24.0$ 27.3$ 34.5$ 33.6$ +7 23 24.0$ 26.8$ 21.3$ 25.9$ 25.5$ 25.6$ 21.1$ 21.2$ 23.1$ 20.7$ 25.9$ 23.7$ 17.0$ 18.6$ 23.3$ 24.8$ +5 18 19.2$ 21.3$ 19.2$ 20.3$ 20.3$ 19.2$ 16.9$ 16.3$ 15.7$ 15.8$ 19.8$ 18.2$ 13.5$ 14.1$ 18.7$ 17.8$ +3 10 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ 9.9$ -3 3 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ 3.0$ Total 101 119.9$ 116.5$ 93.0$ 112.4$ 94.9$ 124.7$ 92.7$ 90.5$ 118.1$ 125.8$ 113.3$ 95.1$ 76.9$ 80.3$ 146.5$ 83.3$

Ct Size Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 Gaw‐03 Yw‐03Spec 9.34$ 5.06$ 1.52$ 6.89$ 7.58$ 8.34$ 11.47$ 6.67$ 19.81$ 36.61$ 11.43$ 0.65$ 17.77$ 9.36$ 28.10$ 5.43$ 10cts -$ 1.67$ 2.55$ 2.93$ 2.65$ 1.13$ 2.39$ 0.24$ 5.19$ 3.02$ 0.23$ 5.49$ 2.60$ 1.20$ 15.74$ 2.19$ 9cts 6.38$ 2.61$ 1.76$ 4.54$ 0.27$ 7.22$ 3.54$ 2.95$ 2.99$ 2.06$ 3.79$ 1.20$ 1.54$ 3.07$ 5.42$ 1.61$ 8cts 3.12$ 1.12$ 1.88$ 1.73$ 3.04$ 5.79$ 3.33$ 4.73$ 2.29$ 6.90$ 1.75$ 1.18$ 2.87$ 4.09$ 3.85$ 1.73$ 7cts 1.90$ 4.71$ 2.96$ 5.08$ 3.98$ 8.00$ 1.53$ 3.43$ 6.01$ 5.25$ 4.43$ 5.91$ 2.73$ 3.70$ 10.27$ 2.09$ 6cts 9.08$ 4.75$ 3.89$ 5.67$ 4.71$ 4.74$ 5.56$ 2.70$ 2.39$ 5.25$ 6.83$ 8.12$ 2.60$ 5.61$ 7.07$ 4.58$ 5cts 10.98$ 8.76$ 3.22$ 4.97$ 7.24$ 5.57$ 4.85$ 6.11$ 6.81$ 6.47$ 7.48$ 5.56$ 4.36$ 5.76$ 8.71$ 4.34$ 4cts 7.40$ 7.57$ 5.61$ 9.41$ 4.58$ 8.44$ 6.62$ 7.05$ 8.87$ 5.86$ 8.31$ 7.46$ 3.67$ 3.78$ 6.38$ 5.56$ 3cts 12.43$ 13.77$ 9.70$ 11.68$ 7.59$ 13.03$ 8.69$ 7.25$ 10.54$ 8.85$ 10.24$ 9.92$ 5.60$ 7.00$ 8.39$ 10.34$ 8‐10gr 15.64$ 17.09$ 13.82$ 15.62$ 11.01$ 16.30$ 9.51$ 11.11$ 13.02$ 11.92$ 13.78$ 10.92$ 7.10$ 8.03$ 16.47$ 12.56$ 6gr 6.80$ 7.65$ 7.15$ 6.91$ 5.19$ 7.05$ 3.97$ 5.48$ 5.87$ 4.50$ 6.26$ 4.89$ 3.16$ 3.99$ 6.50$ 5.68$ 5gr 3.89$ 4.70$ 3.96$ 3.50$ 3.03$ 3.44$ 2.74$ 3.15$ 3.89$ 2.64$ 3.55$ 2.92$ 1.82$ 2.46$ 2.88$ 2.39$ 4gr 5.79$ 6.68$ 6.86$ 5.78$ 5.36$ 6.57$ 4.67$ 5.15$ 5.40$ 4.27$ 5.99$ 5.68$ 2.87$ 3.66$ 4.83$ 3.72$ 3gr 5.55$ 5.77$ 5.05$ 4.74$ 4.62$ 5.12$ 3.93$ 4.29$ 4.44$ 3.63$ 5.22$ 4.69$ 2.98$ 2.95$ 3.42$ 2.50$ +11 10.83$ 12.11$ 10.72$ 9.92$ 9.92$ 11.19$ 7.81$ 9.27$ 9.70$ 8.18$ 11.14$ 9.40$ 6.63$ 6.65$ 8.16$ 6.36$ +9 6.24$ 7.38$ 7.51$ 6.97$ 6.57$ 6.27$ 5.60$ 5.26$ 5.56$ 4.90$ 6.31$ 5.47$ 4.02$ 3.98$ 4.99$ 5.16$ +7 2.71$ 3.10$ 2.61$ 2.98$ 3.12$ 2.84$ 2.41$ 2.43$ 2.56$ 2.26$ 2.92$ 2.59$ 1.85$ 1.93$ 2.29$ 2.90$ +5 1.80$ 1.95$ 2.13$ 2.75$ 3.80$ 3.23$ 3.37$ 2.82$ 2.44$ 2.78$ 3.30$ 2.77$ 2.25$ 2.46$ 2.68$ 3.58$ +3 0.05$ 0.04$ 0.10$ 0.28$ 0.62$ 0.47$ 0.64$ 0.45$ 0.29$ 0.42$ 0.33$ 0.29$ 0.43$ 0.62$ 0.34$ 0.60$ ‐3 0.00$ 0.00$ 0.00$ 0.01$ 0.03$ 0.01$ 0.03$ 0.01$ 0.01$ 0.02$ 0.01$ 0.01$ 0.03$ 0.03$ 0.02$ 0.03$

Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$ 76.87$ 80.33$ 146.48$ 83.34$

TABLE 5.24: ALL PIPES PRICE PER CARAT

TABLE 5.25: ALL PIPES PRICE PER CARAT CONTRIBUTION PER SIZE

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Launfal Kaye Tailings Total Size Sacramore Launfal Kaye Tailings Total Size Sacramore Launfal Kaye Tailings Total

Special 45.76 26.75 76.35 14.85 163.71 Special 28.0% 16.3% 46.6% 9.1% 100% Special 1,717.27 364.24 8.88 10.00 544.57+10 21.05 0.00 20.39 0.00 41.44 +10 50.8% 0.0% 49.2% 0.0% 100% +10 0.00 1,166.75 4.00+9 18.63 9.13 18.37 0.00 46.13 +9 40.4% 19.8% 39.8% 0.0% 100% +9 793.97 4,190.00 21.98 1,158.69+8 25.12 24.67 16.70 0.00 66.49 +8 37.8% 37.1% 25.1% 0.0% 100% +8 2,190.06 1,009.13 399.78 1,302.24+7 14.27 28.51 22.43 7.30 72.51 +7 19.7% 39.3% 30.9% 10.1% 100% +7 519.43 998.99 536.13 1,852.22 847.33+6 18.47 36.87 5.91 6.59 67.84 +6 27.2% 54.3% 8.7% 9.7% 100% +6 2,284.69 939.99 2.33 238.89 1,156.31+5 48.23 94.26 58.02 16.22 216.73 +5 22.3% 43.5% 26.8% 7.5% 100% +5 819.98 436.94 231.82 1,561.34 551.42+4 59.87 89.24 76.22 29.28 254.61 +4 23.5% 35.0% 29.9% 11.5% 100% +4 241.59 682.03 255.46 325.20 409.73+3 151.87 204.96 98.41 54.25 509.49 +3 29.8% 40.2% 19.3% 10.6% 100% +3 476.79 505.38 162.83 321.96 411.168gr 263.50 312.92 174.58 44.63 795.63 8gr 33.1% 39.3% 21.9% 5.6% 100% 8gr 317.41 322.74 262.70 343.34 308.966gr 172.40 216.87 106.87 36.43 532.57 6gr 32.4% 40.7% 20.1% 6.8% 100% 6gr 186.74 226.35 108.78 145.85 184.435gr 130.52 120.06 72.31 14.26 337.15 5gr 38.7% 35.6% 21.4% 4.2% 100% 5gr 124.52 144.85 76.01 83.71 119.634gr 266.27 312.73 163.58 40.18 782.76 4gr 34.0% 40.0% 20.9% 5.1% 100% 4gr 126.64 130.30 71.02 113.84 115.823gr 297.73 317.36 199.61 45.29 859.99 3gr 34.6% 36.9% 23.2% 5.3% 100% 3gr 90.65 98.05 54.03 110.35 85.92+11 960.18 1,054.56 567.10 181.64 2,763.48 +11 34.7% 38.2% 20.5% 6.6% 100% +11 57.27 54.50 36.03 43.33 50.94+9 731.86 852.63 475.83 151.22 2,211.54 +9 33.1% 38.6% 21.5% 6.8% 100% +9 36.74 40.16 23.33 29.06 34.65+7 444.88 472.52 298.15 124.27 1,339.82 +7 33.2% 35.3% 22.3% 9.3% 100% +7 36.47 36.07 20.12 20.91 31.25+5 438.93 461.47 343.20 176.68 1,420.28 +5 30.9% 32.5% 24.2% 12.4% 100% +5 22.42 18.79 7.94 16.95 17.06+3 24.93 30.18 31.59 46.59 133.29 +3 18.7% 22.6% 23.7% 35.0% 100% +3 10.00 10.00 10.00 10.00 10.00-3 0.70 1.30 1.31 2.78 6.09 -3 11.5% 21.3% 21.5% 45.6% 100% -3 1.67 1.67 1.67 1.67 1.67

Carats 4,135.17 4,666.99 2,826.93 992.46 12,621.55 US$/ct $156.23 $149.72 $77.29 $118.18 $133.15

Contribution by Value % ValueSize Sacramore Launfal Kaye Tailings Total Size Sacramore Launfal Kaye Tailings Total

Special 78,582.22 9,743.32 678.01 148.50 89,152.05 Special 88.1% 10.9% 0.8% 0.2% 100%+10 20,637.73 0.00 23,789.97 0.00 44,427.70 +10 46.5% 0.0% 53.5% 0.0% 100%+9 14,791.69 38,254.70 403.86 0.00 53,450.25 +9 27.7% 71.6% 0.8% 0.0% 100%+8 55,014.28 24,895.14 6,676.36 0.00 86,585.78 +8 63.5% 28.8% 7.7% 0.0% 100%+7 7,412.29 28,481.31 12,025.29 13,521.22 61,440.11 +7 12.1% 46.4% 19.6% 22.0% 100%+6 42,198.13 34,657.58 13.79 1,574.28 78,443.78 +6 53.8% 44.2% 0.0% 2.0% 100%+5 39,547.64 41,185.71 13,450.20 25,324.98 119,508.53 +5 33.1% 34.5% 11.3% 21.2% 100%+4 14,464.14 60,864.54 19,471.33 9,521.76 104,321.77 +4 13.9% 58.3% 18.7% 9.1% 100%+3 72,410.03 103,581.93 16,024.04 17,466.49 209,482.49 +3 34.6% 49.4% 7.6% 8.3% 100%8gr 83,637.25 100,992.66 45,861.41 15,323.05 245,814.37 8gr 34.0% 41.1% 18.7% 6.2% 100%6gr 32,194.63 49,088.59 11,625.80 5,313.17 98,222.18 6gr 32.8% 50.0% 11.8% 5.4% 100%5gr 16,252.54 17,390.54 5,496.22 1,193.75 40,333.05 5gr 40.3% 43.1% 13.6% 3.0% 100%4gr 33,721.74 40,747.78 11,617.49 4,574.22 90,661.22 4gr 37.2% 44.9% 12.8% 5.0% 100%3gr 26,990.00 31,117.39 10,785.53 4,997.85 73,890.77 3gr 36.5% 42.1% 14.6% 6.8% 100%+11 54,992.97 57,471.30 20,429.88 7,870.68 140,764.82 +11 39.1% 40.8% 14.5% 5.6% 100%+9 26,888.45 34,238.44 11,099.74 4,394.39 76,621.02 +9 35.1% 44.7% 14.5% 5.7% 100%+7 16,226.75 17,043.56 5,998.07 2,598.02 41,866.39 +7 38.8% 40.7% 14.3% 6.2% 100%+5 9,842.46 8,670.28 2,724.31 2,994.98 24,232.03 +5 40.6% 35.8% 11.2% 12.4% 100%+3 249.30 301.80 315.90 465.90 1,332.90 +3 18.7% 22.6% 23.7% 35.0% 100%-3 1.17 2.17 2.19 4.64 10.16 -3 11.5% 21.3% 21.5% 45.7% 100%

US$ $646,055 $698,729 $218,489 $117,288 $1,680,561

TABLE 5.26: Production September 1999

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Palomides Gareth Total Size Sacramore Palomides Gareth Size Sacramore Palomides Gareth Total

Special 43.7 70.93 0 114.63 Special 38.1% 61.9% 0.0% 100% Special 1,606.54 1,342.80 0.00 1,443.35+10 0 9.97 10.05 20.02 +10 0.0% 49.8% 50.2% 100% +10 0.00 2.33 22.11 12.26+9 9.43 9.69 8.89 28.01 +9 33.7% 34.6% 31.7% 100% +9 13.89 484.44 17.00 177.66+8 24.86 24.05 8.1 57.01 +8 43.6% 42.2% 14.2% 100% +8 916.38 86.33 373.33 489.06+7 43.02 15.36 0 58.38 +7 73.7% 26.3% 0.0% 100% +7 1,398.37 2,692.84 0.00 1,738.95+6 30.59 5.85 6.04 42.48 +6 72.0% 13.8% 14.2% 100% +6 748.90 2.33 114.44 555.88+5 10.5 16.5 20.51 47.51 +5 22.1% 34.7% 43.2% 100% +5 745.92 767.78 12.08 436.71+4 62.33 25.25 8.53 96.11 +4 64.9% 26.3% 8.9% 100% +4 397.12 979.13 124.34 525.81+3 95.3 62.51 6.61 164.42 +3 58.0% 38.0% 4.0% 100% +3 465.89 314.92 50.61 391.808gr 202.86 111.78 12.59 327.23 8gr 62.0% 34.2% 3.8% 100% 8gr 287.40 291.17 90.22 281.106gr 173.58 97.51 18.6 289.69 6gr 59.9% 33.7% 6.4% 100% 6gr 163.71 123.18 68.77 143.975gr 111.27 70.82 20.75 202.84 5gr 54.9% 34.9% 10.2% 100% 5gr 148.40 114.20 125.89 134.164gr 240.19 166.68 19.02 425.89 4gr 56.4% 39.1% 4.5% 100% 4gr 140.69 110.30 34.78 124.073gr 285.21 142.26 25.18 452.65 3gr 63.0% 31.4% 5.6% 100% 3gr 91.48 63.23 14.46 78.31+11 911.71 495.87 99.02 1,506.60 +11 60.5% 32.9% 6.6% 100% +11 58.08 43.18 27.65 51.18+9 669.09 416.03 78.32 1,163.44 +9 57.5% 35.8% 6.7% 100% +9 34.43 29.03 19.70 31.51+7 373.71 247.75 47.64 669.10 +7 55.9% 37.0% 7.1% 100% +7 33.51 24.49 18.56 29.10+5 298.15 240.48 42.72 581.35 +5 51.3% 41.4% 7.3% 100% +5 24.80 15.82 8.80 19.91+3 5.14 12.48 1.39 19.01 +3 27.0% 65.6% 7.3% 100% +3 10.00 10.00 10.00 10.00-3 0.1 0.36 0 0.46 -3 21.7% 78.3% 0.0% 100% -3 1.67 1.67 0.00 1.67

Carats 3,590.74 2,242.13 433.96 6,266.83 US$/ct $142.66 $144.51 $39.95 $136.21

Contribution by Value % ValueSize Sacramore Palomides Gareth Total Size Sacramore Palomides Gareth Total

Special 70,206.00 95,244.70 0.00 165,450.70 Special 42.4% 57.6% 0.0% 100%+10 0.00 23.26 222.22 245.48 +10 0.0% 9.5% 90.5% 100%+9 130.97 4,694.27 151.13 4,976.37 +9 2.6% 94.3% 3.0% 100%+8 22,781.25 2,076.26 3,024.00 27,881.51 +8 81.7% 7.4% 10.8% 100%+7 60,157.97 41,362.00 0.00 101,519.97 +7 59.3% 40.7% 0.0% 100%+6 22,908.90 13.65 691.24 23,613.79 +6 97.0% 0.1% 2.9% 100%+5 7,832.18 12,668.36 247.75 20,748.28 +5 37.7% 61.1% 1.2% 100%+4 24,752.35 24,723.02 1,060.58 50,535.95 +4 49.0% 48.9% 2.1% 100%+3 44,399.03 19,685.82 334.52 64,419.36 +3 68.9% 30.6% 0.5% 100%8gr 58,302.79 32,546.90 1,135.88 91,985.57 8gr 63.4% 35.4% 1.2% 100%6gr 28,416.56 12,010.88 1,279.04 41,706.49 6gr 68.1% 28.8% 3.1% 100%5gr 16,512.68 8,087.99 2,612.25 27,212.92 5gr 60.7% 29.7% 9.6% 100%4gr 33,792.14 18,384.80 661.45 52,838.39 4gr 64.0% 34.8% 1.3% 100%3gr 26,089.76 8,994.50 364.14 35,448.40 3gr 73.6% 25.4% 1.0% 100%+11 52,953.41 21,409.63 2,737.73 77,100.77 +11 68.7% 27.8% 3.6% 100%+9 23,036.81 12,078.51 1,542.91 36,658.24 +9 62.8% 32.9% 4.2% 100%+7 12,522.03 6,066.42 884.12 19,472.56 +7 64.3% 31.2% 4.5% 100%+5 7,393.92 3,803.52 375.99 11,573.43 +5 63.9% 32.9% 3.2% 100%+3 51.40 124.80 13.90 190.10 +3 27.0% 65.6% 7.3% 100%-3 0.17 0.60 0.00 0.77 -3 21.7% 78.3% 0.0% 100%

US$ $512,240.33 $323,999.89 $17,338.85 $853,579.06

TABLE 5.27: Production October 1999

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Launfal Palomides Total Size Sacramore Launfal Palomides Total Size Sacramore Launfal Palomides Total

Special 54.30 16.38 50.89 121.57 Special 44.7% 13.5% 41.9% 100% Special 966.88 1,926.00 1,021.60 1,119.01+10 0.00 - 0 0.00 +10 0.0% 0.0% 0.0% 0% +10 0.00 0.00 0.00 0.00+9 18.47 18.46 9.7 46.63 +9 39.6% 39.6% 20.8% 100% +9 1,401.41 1,549.52 1,359.00 1,451.22+8 16.59 - 16.5 33.09 +8 50.1% 0.0% 49.9% 100% +8 1,640.86 0.00 269.50 957.05+7 29.13 7.51 6.97 43.61 +7 66.8% 17.2% 16.0% 100% +7 719.12 95.00 15.00 499.10+6 50.21 24.55 30.4 105.16 +6 47.7% 23.3% 28.9% 100% +6 1,331.90 538.93 811.01 996.20+5 61.98 58.85 91.34 212.17 +5 29.2% 27.7% 43.1% 100% +5 1,119.43 407.33 344.33 588.23+4 53.84 42.61 118.12 214.57 +4 25.1% 19.9% 55.0% 100% +4 418.22 409.18 370.49 390.15+3 111.72 125.73 280.46 517.91 +3 21.6% 24.3% 54.2% 100% +3 435.35 255.89 363.98 353.138gr 237.63 190.85 494.97 923.45 8gr 25.7% 20.7% 53.6% 100% 8gr 317.94 215.88 256.40 263.866gr 175.27 126.35 380.67 682.29 6gr 25.7% 18.5% 55.8% 100% 6gr 186.40 157.64 139.22 154.755gr 122.90 84.16 289.09 496.15 5gr 24.8% 17.0% 58.3% 100% 5gr 136.96 103.14 108.78 114.814gr 221.37 139.43 516.11 876.91 4gr 25.2% 15.9% 58.9% 100% 4gr 117.28 108.80 85.55 97.263gr 293.00 176.86 644.87 1,114.73 3gr 26.3% 15.9% 57.8% 100% 3gr 89.03 80.62 75.06 79.61+11 834.33 602.37 2037.99 3,474.69 +11 24.0% 17.3% 58.7% 100% +11 55.60 52.37 47.30 50.17+9 628.07 432.01 1560.36 2,620.44 +9 24.0% 16.5% 59.5% 100% +9 42.76 39.84 35.66 38.05+7 389.31 279.03 974.63 1,642.97 +7 23.7% 17.0% 59.3% 100% +7 34.18 32.83 27.30 29.87+5 298.69 207.55 856.01 1,362.25 +5 21.9% 15.2% 62.8% 100% +5 23.22 24.35 19.17 20.85+3 8.12 10.26 55.17 73.55 +3 11.0% 13.9% 75.0% 100% +3 10.00 10.00 10.00 10.00-3 0.15 0.96 2.26 3.37 -3 4.5% 28.5% 67.1% 100% -3 1.67 1.67 1.67 1.67

Carats 3,605.08 2,543.92 8,416.51 14,565.51 US$/ct $167.72 $121.85 $91.63 $115.74

Contribution by Value % ValueSize Sacramore Launfal Palomides Total Size Sacramore Launfal Palomides Total

Special 52,501.63 31,547.88 51,989.14 136,038.65 Special 38.6% 23.2% 38.2% 100%+10 0.00 0.00 0.00 0.00 +10 0.0% 0.0% 0.0% 0%+9 25,884.01 28,604.06 13,182.30 67,670.37 +9 38.3% 42.3% 19.5% 100%+8 27,221.94 0.00 4,446.72 31,668.66 +8 86.0% 0.0% 14.0% 100%+7 20,947.88 713.45 104.55 21,765.88 +7 96.2% 3.3% 0.5% 100%+6 66,874.80 13,230.63 24,654.57 104,760.00 +6 63.8% 12.6% 23.5% 100%+5 69,382.40 23,971.64 31,451.35 124,805.40 +5 55.6% 19.2% 25.2% 100%+4 22,516.99 17,435.01 43,762.25 83,714.25 +4 26.9% 20.8% 52.3% 100%+3 48,636.97 32,172.57 102,081.84 182,891.38 +3 26.6% 17.6% 55.8% 100%8gr 75,552.42 41,201.15 126,910.33 243,663.90 8gr 31.0% 16.9% 52.1% 100%6gr 32,670.82 19,917.90 52,995.77 105,584.48 6gr 30.9% 18.9% 50.2% 100%5gr 16,832.64 8,680.28 31,447.56 56,960.48 5gr 29.6% 15.2% 55.2% 100%4gr 25,962.94 15,170.45 44,154.72 85,288.11 4gr 30.4% 17.8% 51.8% 100%3gr 26,087.22 14,259.04 48,401.09 88,747.35 3gr 29.4% 16.1% 54.5% 100%+11 46,386.02 31,544.84 96,402.79 174,333.65 +11 26.6% 18.1% 55.3% 100%+9 26,856.59 17,210.50 55,636.76 99,703.85 +9 26.9% 17.3% 55.8% 100%+7 13,304.74 9,159.89 26,606.46 49,071.09 +7 27.1% 18.7% 54.2% 100%+5 6,935.24 5,054.70 16,408.09 28,398.03 +5 24.4% 17.8% 57.8% 100%+3 81.20 102.60 551.70 735.50 +3 11.0% 13.9% 75.0% 100%-3 0.25 1.60 3.77 5.62 -3 4.5% 28.5% 67.1% 100%

US$ $604,636.69 $309,978.19 $771,191.75 $1,685,806.64

TABLE 5.28: Production November 1999

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Palomides Excalibur Total Size Sacramore Palomides Excalibur Total Size Sacramore Palomides Excalibur Total

Special 71.59 62.33 46.35 180.27 Special 39.7% 34.6% 25.7% 100% Special 359.07 1,020.39 1,651.74 920.09+10 20.95 10.61 20.65 52.21 +10 40.1% 20.3% 39.6% 100% +10 208.02 1,229.00 537.24 545.72+9 9.23 0 64.6 73.83 +9 12.5% 0.0% 87.5% 100% +9 563.38 0.00 821.94 789.61+8 16.48 8.09 40.66 65.23 +8 25.3% 12.4% 62.3% 100% +8 56.49 98.89 518.61 349.80+7 0 22.46 130.98 153.44 +7 0.0% 14.6% 85.4% 100% +7 0.00 977.10 636.10 686.01+6 5.98 24.39 161.83 192.20 +6 3.1% 12.7% 84.2% 100% +6 334.45 1,774.92 533.15 684.55+5 41.8 57.25 248.34 347.39 +5 12.0% 16.5% 71.5% 100% +5 611.69 367.30 701.57 635.67+4 44.7 58.29 452.05 555.04 +4 8.1% 10.5% 81.4% 100% +4 372.18 345.79 378.61 374.64+3 99.32 100.18 964.85 1,164.35 +3 8.5% 8.6% 82.9% 100% +3 473.84 416.57 376.29 388.088gr 165.47 211.66 1814.62 2,191.75 8gr 7.5% 9.7% 82.8% 100% 8gr 305.12 176.74 279.51 271.526gr 102.44 160.07 1217.56 1,480.07 6gr 6.9% 10.8% 82.3% 100% 6gr 158.70 89.77 178.73 167.735gr 98.93 115.78 802.02 1,016.73 5gr 9.7% 11.4% 78.9% 100% 5gr 175.45 132.04 160.17 158.464gr 197.41 220.25 1532.55 1,950.21 4gr 10.1% 11.3% 78.6% 100% 4gr 133.62 94.46 125.72 122.993gr 216.26 252.82 1833.21 2,302.29 3gr 9.4% 11.0% 79.6% 100% 3gr 101.20 72.99 94.96 93.13+11 650.83 831.23 6323.92 7,805.98 +11 8.3% 10.6% 81.0% 100% +11 56.84 46.88 55.22 54.47+9 463.63 645.71 5200.76 6,310.10 +9 7.3% 10.2% 82.4% 100% +9 42.28 34.21 40.71 40.16+7 277.66 360.2 3147.52 3,785.38 +7 7.3% 9.5% 83.1% 100% +7 37.03 27.21 33.44 33.11+5 173.78 274.75 2558.95 3,007.48 +5 5.8% 9.1% 85.1% 100% +5 24.75 18.24 22.42 22.17+3 3.3 12.38 113.57 129.25 +3 2.6% 9.6% 87.9% 100% +3 10.00 10.00 10.00 10.00-3 0.34 0.5 6.12 6.96 -3 4.9% 7.2% 87.9% 100% -3 1.67 1.67 1.67 1.67

Carats 2,660.10 3,428.95 26,681.11 32,770.16 US$/ct $124.45 $118.96 $111.86 $113.63

Contribution by Value % ValueSize Sacramore Palomides Excalibur Total Size Sacramore Palomides Excalibur Total

Special 25,706.00 63,600.78 76,558.35 165,865.13 Special 15.5% 38.3% 46.2% 100%+10 4,358.00 13,039.69 11,094.10 28,491.79 +10 15.3% 45.8% 38.9% 100%+9 5,200.00 0.00 53,097.04 58,297.04 +9 8.9% 0.0% 91.1% 100%+8 931.00 800.00 21,086.63 22,817.63 +8 4.1% 3.5% 92.4% 100%+7 0.00 21,945.64 83,315.92 105,261.56 +7 0.0% 20.8% 79.2% 100%+6 2,000.00 43,290.18 86,279.90 131,570.08 +6 1.5% 32.9% 65.6% 100%+5 25,568.80 21,027.89 174,228.78 220,825.48 +5 11.6% 9.5% 78.9% 100%+4 16,636.54 20,156.20 171,150.05 207,942.79 +4 8.0% 9.7% 82.3% 100%+3 47,062.25 41,731.85 363,066.22 451,860.32 +3 10.4% 9.2% 80.3% 100%8gr 50,487.84 37,409.21 507,203.39 595,100.44 8gr 8.5% 6.3% 85.2% 100%6gr 16,256.82 14,369.19 217,618.76 248,244.77 6gr 6.5% 5.8% 87.7% 100%5gr 17,357.53 15,287.67 128,462.82 161,108.02 5gr 10.8% 9.5% 79.7% 100%4gr 26,377.31 20,804.68 192,669.17 239,851.16 4gr 11.0% 8.7% 80.3% 100%3gr 21,884.65 18,453.79 174,075.18 214,413.63 3gr 10.2% 8.6% 81.2% 100%+11 36,990.74 38,966.75 349,227.56 425,185.05 +11 8.7% 9.2% 82.1% 100%+9 19,602.01 22,092.29 211,733.49 253,427.78 +9 7.7% 8.7% 83.5% 100%+7 10,281.87 9,802.65 105,251.35 125,335.87 +7 8.2% 7.8% 84.0% 100%+5 4,301.62 5,011.36 57,369.72 66,682.70 +5 6.5% 7.5% 86.0% 100%+3 33.00 123.80 1,135.70 1,292.50 +3 2.6% 9.6% 87.9% 100%-3 0.57 0.83 10.20 11.60 -3 4.9% 7.2% 87.9% 100%

US$ $331,036.54 $407,914.47 $2,984,634.33 $3,723,585.33

TABLE 5.29: Production February 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Excalibur Total Size Excalibur Total Size Excalibur Total

Special 77.03 77.03 Special 100.0% 100% Special 594.31 594.31+10 31.78 31.78 +10 100.0% 100% +10 1,267.56 1,267.56+9 45.31 45.31 +9 100.0% 100% +9 409.34 409.34+8 57.78 57.78 +8 100.0% 100% +8 746.48 746.48+7 115.47 115.47 +7 100.0% 100% +7 482.53 482.53+6 149.99 149.99 +6 100.0% 100% +6 607.25 607.25+5 178.45 178.45 +5 100.0% 100% +5 391.20 391.20+4 348.80 348.80 +4 100.0% 100% +4 404.88 404.88+3 745.95 745.95 +3 100.0% 100% +3 342.88 342.888gr 1,620.68 1,620.68 8gr 100.0% 100% 8gr 238.99 238.996gr 1,292.74 1,292.74 6gr 100.0% 100% 6gr 174.45 174.455gr 916.32 916.32 5gr 100.0% 100% 5gr 133.89 133.894gr 1,862.69 1,862.69 4gr 100.0% 100% 4gr 125.66 125.663gr 2,027.17 2,027.17 3gr 100.0% 100% 3gr 84.57 84.57+11 7,070.08 7,070.08 +11 100.0% 100% +11 52.70 52.70+9 6,170.93 6,170.93 +9 100.0% 100% +9 42.76 42.76+7 3,693.38 3,693.38 +7 100.0% 100% +7 27.47 27.47+5 3,339.78 3,339.78 +5 100.0% 100% +5 21.30 21.30+3 294.56 294.56 +3 100.0% 100% +3 10.00 10.00-3 20.17 20.17 -3 100.0% 100% -3 1.67 1.67

Carats 30,059.06 30,059.06 US$/ct $90.30 $90.30

Contribution by Value % ValueSize Excalibur Total Size Excalibur Total

Special 45,780.00 45,780.00 Special 100.0% 100%+10 40,283.05 40,283.05 +10 100.0% 100%+9 18,547.15 18,547.15 +9 100.0% 100%+8 43,131.37 43,131.37 +8 100.0% 100%+7 55,717.50 55,717.50 +7 100.0% 100%+6 91,080.73 91,080.73 +6 100.0% 100%+5 69,809.29 69,809.29 +5 100.0% 100%+4 141,223.43 141,223.43 +4 100.0% 100%+3 255,771.72 255,771.72 +3 100.0% 100%8gr 387,320.90 387,320.90 8gr 100.0% 100%6gr 225,517.13 225,517.13 6gr 100.0% 100%5gr 122,683.19 122,683.19 5gr 100.0% 100%4gr 234,065.36 234,065.36 4gr 100.0% 100%3gr 171,443.20 171,443.20 3gr 100.0% 100%+11 372,621.31 372,621.31 +11 100.0% 100%+9 263,872.84 263,872.84 +9 100.0% 100%+7 101,460.49 101,460.49 +7 100.0% 100%+5 71,145.33 71,145.33 +5 100.0% 100%+3 2,945.60 2,945.60 +3 100.0% 100%-3 33.62 33.62 -3 100.0% 100%

US$ 2,714,453.20 2,714,453.20

TABLE 5.30: Production March 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Palomides Launfal Launfal North Excalibur Total Size Palomides Launfal Launfal North Excalibur Total Size Palomides Launfal Launfal North Excalibur Total

Special 12.97 13.39 80.71 64.54 171.61 Special 7.6% 7.8% 47.0% 37.6% 100% Special 5.00 1,994.00 1,754.22 926.17 1,329.31+10 21.55 0.00 10.69 40.42 72.66 +10 29.7% 0.0% 14.7% 55.6% 100% +10 746.31 0.00 1,228.00 1,363.72 1,160.64+9 0.00 0.00 27.74 56.59 84.33 +9 0.0% 0.0% 32.9% 67.1% 100% +9 0.00 0.00 944.94 1,711.33 1,459.23+8 0.00 8.68 17.37 50.09 76.14 +8 0.0% 11.4% 22.8% 65.8% 100% +8 0.00 1,643.00 1,119.49 727.70 921.42+7 0.00 14.65 14.45 94.24 123.34 +7 0.0% 11.9% 11.7% 76.4% 100% +7 0.00 1,254.92 1,231.57 943.27 1,014.06+6 0.00 30.54 74.74 125.24 230.52 +6 0.0% 13.2% 32.4% 54.3% 100% +6 0.00 245.36 459.79 730.56 578.49+5 0.00 48.14 16.06 194.33 258.53 +5 0.0% 18.6% 6.2% 75.2% 100% +5 0.00 367.85 801.31 436.82 446.62+4 16.16 72.61 64.50 429.95 583.22 +4 2.8% 12.4% 11.1% 73.7% 100% +4 408.53 404.58 352.14 393.01 390.36+3 9.52 130.36 137.40 723.31 1,000.59 +3 1.0% 13.0% 13.7% 72.3% 100% +3 184.46 225.01 465.67 366.72 360.118gr 33.40 316.25 190.78 1,378.79 1,919.22 8gr 1.7% 16.5% 9.9% 71.8% 100% 8gr 137.41 245.42 317.23 258.61 260.166gr 6.33 246.96 189.68 925.59 1,368.56 6gr 0.5% 18.0% 13.9% 67.6% 100% 6gr 52.17 168.82 198.18 170.19 173.285gr 7.80 179.25 118.69 573.50 879.24 5gr 0.9% 20.4% 13.5% 65.2% 100% 5gr 129.62 125.12 122.93 143.65 136.954gr 12.58 356.70 237.46 1,145.92 1,752.66 4gr 0.7% 20.4% 13.5% 65.4% 100% 4gr 104.60 104.96 134.66 113.33 114.463gr 16.89 512.93 270.02 1,347.07 2,146.91 3gr 0.8% 23.9% 12.6% 62.7% 100% 3gr 84.45 78.86 82.87 81.17 80.86+11 67.99 1,865.27 786.71 4,339.27 7,059.24 +11 1.0% 26.4% 11.1% 61.5% 100% +11 48.13 53.66 56.64 54.65 54.55+9 35.92 1,686.08 525.78 3,779.05 6,026.83 +9 0.6% 28.0% 8.7% 62.7% 100% +9 34.08 41.73 46.07 43.68 43.28+7 15.71 1,071.04 272.22 2,444.91 3,803.88 +7 0.4% 28.2% 7.2% 64.3% 100% +7 30.98 20.77 35.82 32.62 29.51+5 14.09 1,240.78 272.40 2,961.59 4,488.86 +5 0.3% 27.6% 6.1% 66.0% 100% +5 19.64 21.71 23.44 21.65 21.77+3 0.00 253.29 58.41 615.07 926.77 +3 0.0% 27.3% 6.3% 66.4% 100% +3 0.00 10.00 10.00 10.00 10.00-3 0.00 40.70 5.21 78.11 124.02 -3 0.0% 32.8% 4.2% 63.0% 100% -3 0.00 1.67 1.67 1.67 1.67

Carats 270.91 8,087.62 3,371.02 21,367.58 33,097.13 US$/ct $141.89 $72.35 $179.37 $109.31 $107.68

Contribution by Value % ValueSize Palomides Launfal Launfal North Excalibur Total Size Palomides Launfal Launfal North Excalibur Total

Special 64.85 26,699.66 141,583.25 59,774.84 228,122.60 Special 0.0% 11.7% 62.1% 26.2% 100%+10 16,082.96 0.00 13,127.32 55,121.76 84,332.04 +10 19.1% 0.0% 15.6% 65.4% 100%+9 0.00 0.00 26,212.57 96,844.07 123,056.64 +9 0.0% 0.0% 21.3% 78.7% 100%+8 0.00 14,261.24 19,445.46 36,450.36 70,157.06 +8 0.0% 20.3% 27.7% 52.0% 100%+7 0.00 18,384.65 17,796.20 88,893.56 125,074.41 +7 0.0% 14.7% 14.2% 71.1% 100%+6 0.00 7,493.33 34,364.36 91,495.47 133,353.16 +6 0.0% 5.6% 25.8% 68.6% 100%+5 0.00 17,708.08 12,868.96 84,886.42 115,463.46 +5 0.0% 15.3% 11.1% 73.5% 100%+4 6,601.81 29,376.76 22,713.24 168,973.71 227,665.52 +4 2.9% 12.9% 10.0% 74.2% 100%+3 1,756.08 29,332.67 63,982.52 265,254.28 360,325.55 +3 0.5% 8.1% 17.8% 73.6% 100%8gr 4,589.42 77,614.21 60,521.22 356,575.70 499,300.55 8gr 0.9% 15.5% 12.1% 71.4% 100%6gr 330.23 41,691.22 37,590.27 157,526.37 237,138.09 6gr 0.1% 17.6% 15.9% 66.4% 100%5gr 1,011.06 22,428.55 14,591.03 82,385.21 120,415.85 5gr 0.8% 18.6% 12.1% 68.4% 100%4gr 1,315.84 37,440.09 31,975.93 129,870.74 200,602.60 4gr 0.7% 18.7% 15.9% 64.7% 100%3gr 1,426.34 40,448.72 22,375.91 109,339.64 173,590.62 3gr 0.8% 23.3% 12.9% 63.0% 100%+11 3,272.35 100,088.80 44,556.79 237,133.39 385,051.33 +11 0.8% 26.0% 11.6% 61.6% 100%+9 1,224.10 70,353.36 24,220.75 165,056.42 260,854.63 +9 0.5% 27.0% 9.3% 63.3% 100%+7 486.71 22,245.36 9,750.14 79,759.08 112,241.30 +7 0.4% 19.8% 8.7% 71.1% 100%+5 276.67 26,942.99 6,384.95 64,104.98 97,709.58 +5 0.3% 27.6% 6.5% 65.6% 100%+3 0.00 2,532.90 584.10 6,150.70 9,267.70 +3 0.0% 27.3% 6.3% 66.4% 100%-3 0.00 67.83 8.68 130.18 206.70 -3 0.0% 32.8% 4.2% 63.0% 100%

US$ $38,438.40 $585,110.42 $604,653.68 $2,335,726.89 $3,563,929.39

TABLE 5.31: Production June 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total

Special 13.91 50.68 13.00 43.49 0 121.08 Special 11.5% 41.9% 10.7% 35.9% 0.0% 100% Special 1,319.00 2,238.02 900.00 2,608.31 0.00 2,121.78+10 10.42 0 9.96 20.83 0 41.21 +10 25.3% 0.0% 24.2% 50.5% 0.0% 100% +10 1,899.00 0.00 956.00 1,232.93 0.00 1,334.42+9 0.00 0 0.00 9.51 0 9.51 +9 0.0% 0.0% 0.0% 100.0% 0.0% 100% +9 0.00 0.00 0.00 1,050.00 0.00 1,050.00+8 8.42 0 41.84 16.50 0 66.76 +8 12.6% 0.0% 62.7% 24.7% 0.0% 100% +8 750.00 0.00 1,482.46 1,261.96 0.00 1,335.58+7 21.47 7.6 35.31 81.33 0 145.71 +7 14.7% 5.2% 24.2% 55.8% 0.0% 100% +7 575.99 175.00 364.35 949.82 0.00 712.45+6 6.11 0 36.48 135.50 0 178.09 +6 3.4% 0.0% 20.5% 76.1% 0.0% 100% +6 125.00 0.00 1,116.42 780.34 0.00 826.70+5 41.37 10.6 52.26 174.43 0 278.66 +5 14.8% 3.8% 18.8% 62.6% 0.0% 100% +5 1,070.35 501.23 731.18 512.00 0.00 635.59+4 41.73 7.72 37.84 197.36 0 284.65 +4 14.7% 2.7% 13.3% 69.3% 0.0% 100% +4 473.60 594.29 566.00 431.68 0.00 460.09+3 79.55 20.18 100.65 389.02 0 589.40 +3 13.5% 3.4% 17.1% 66.0% 0.0% 100% +3 310.75 611.41 380.19 369.31 0.00 371.558gr 38.22 54.28 195.91 914.65 86.55 1,289.61 8gr 3.0% 4.2% 15.2% 70.9% 6.7% 100% 8gr 234.56 270.03 285.98 265.54 253.81 267.136gr 40.58 32.09 134.46 689.94 170.88 1,067.95 6gr 3.8% 3.0% 12.6% 64.6% 16.0% 100% 6gr 189.68 230.49 173.36 157.53 205.04 170.545gr 24.52 27.09 90.31 465.51 117.76 725.19 5gr 3.4% 3.7% 12.5% 64.2% 16.2% 100% 5gr 222.61 107.35 136.00 151.05 144.21 148.854gr 39.17 69.13 196.36 1006.81 267.92 1,579.39 4gr 2.5% 4.4% 12.4% 63.7% 17.0% 100% 4gr 125.99 109.55 153.22 127.74 133.45 131.043gr 45.27 112.3 237.00 1143.23 352.48 1,890.28 3gr 2.4% 5.9% 12.5% 60.5% 18.6% 100% 3gr 87.77 111.84 118.17 88.71 91.25 94.23+11 117.28 602.23 738.09 4122.37 1240.44 6,820.41 +11 1.7% 8.8% 10.8% 60.4% 18.2% 100% +11 51.22 54.25 53.32 49.59 52.51 50.96+9 97.26 567.43 448.04 3692.59 1116.37 5,921.69 +9 1.6% 9.6% 7.6% 62.4% 18.9% 100% +9 35.65 40.29 41.77 41.06 39.70 40.69+7 68.51 436.83 299.38 2584.75 761.81 4,151.28 +7 1.7% 10.5% 7.2% 62.3% 18.4% 100% +7 29.69 31.12 33.35 31.85 30.55 31.61+5 99.34 654.66 411.88 3978.02 1208.4 6,352.30 +5 1.6% 10.3% 6.5% 62.6% 19.0% 100% +5 17.10 18.29 20.16 25.47 18.86 23.00+3 32.95 228.16 132.87 1305.95 412.9 2,112.83 +3 1.6% 10.8% 6.3% 61.8% 19.5% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00-3 4.91 26.22 15.28 182.46 64.94 293.81 -3 1.7% 8.9% 5.2% 62.1% 22.1% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00

Carats 830.99 2,907.20 3,226.92 21,154.25 5,800.45 33,919.81 US$/ct $229.76 $91.34 $143.23 $88.69 $52.02 $91.29

Contribution by Value % ValueSize Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total

Special 18,347.29 113,422.86 11,700.00 113,435.34 0.00 256,905.49 Special 7.1% 44.1% 4.6% 44.2% 0.0% 100%+10 19,787.58 0.00 9,521.76 25,681.95 0.00 54,991.29 +10 36.0% 0.0% 17.3% 46.7% 0.0% 100%+9 0.00 0.00 0.00 9,985.50 0.00 9,985.50 +9 0.0% 0.0% 0.0% 100.0% 0.0% 100%+8 6,315.00 0.00 62,026.04 20,822.28 0.00 89,163.32 +8 7.1% 0.0% 69.6% 23.4% 0.0% 100%+7 12,366.58 1,330.00 12,865.14 77,248.93 0.00 103,810.65 +7 11.9% 1.3% 12.4% 74.4% 0.0% 100%+6 763.75 0.00 40,727.11 105,736.70 0.00 147,227.56 +6 0.5% 0.0% 27.7% 71.8% 0.0% 100%+5 44,280.26 5,313.02 38,211.32 89,307.61 0.00 177,112.21 +5 25.0% 3.0% 21.6% 50.4% 0.0% 100%+4 19,763.49 4,587.93 21,417.49 85,195.73 0.00 130,964.64 +4 15.1% 3.5% 16.4% 65.1% 0.0% 100%+3 24,720.10 12,338.33 38,266.51 143,667.63 0.00 218,992.57 +3 11.3% 5.6% 17.5% 65.6% 0.0% 100%8gr 8,965.03 14,657.31 56,026.65 242,877.59 21,967.39 344,493.97 8gr 2.6% 4.3% 16.3% 70.5% 6.4% 100%6gr 7,697.28 7,396.40 23,309.63 108,683.41 35,036.75 182,123.47 6gr 4.2% 4.1% 12.8% 59.7% 19.2% 100%5gr 5,458.44 2,908.18 12,282.47 70,315.43 16,982.45 107,946.97 5gr 5.1% 2.7% 11.4% 65.1% 15.7% 100%4gr 4,934.97 7,573.18 30,086.16 128,613.91 35,753.10 206,961.32 4gr 2.4% 3.7% 14.5% 62.1% 17.3% 100%3gr 3,973.21 12,559.77 28,007.42 101,412.20 32,163.38 178,115.98 3gr 2.2% 7.1% 15.7% 56.9% 18.1% 100%+11 6,006.54 32,670.13 39,354.87 204,410.63 65,139.83 347,582.00 +11 1.7% 9.4% 11.3% 58.8% 18.7% 100%+9 3,467.49 22,862.27 18,714.97 151,617.35 44,318.05 240,980.13 +9 1.4% 9.5% 7.8% 62.9% 18.4% 100%+7 2,034.39 13,592.70 9,985.25 82,330.78 23,275.01 131,218.13 +7 1.6% 10.4% 7.6% 62.7% 17.7% 100%+5 1,698.63 11,975.44 8,303.12 101,303.89 22,794.38 146,075.46 +5 1.2% 8.2% 5.7% 69.4% 15.6% 100%+3 329.50 2,281.60 1,328.70 13,059.50 4,129.00 21,128.30 +3 1.6% 10.8% 6.3% 61.8% 19.5% 100%-3 14.73 78.66 45.84 547.38 194.82 881.43 -3 1.7% 8.9% 5.2% 62.1% 22.1% 100%

US$ $190,924.26 $265,547.78 $462,180.45 $1,876,253.74 $301,754.16 $3,096,660.39

TABLE 5.32: Production August 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Launfal Launfal North Excalibur Gareth Ywain MR Total Size Sacramore Launfal Launfal North Excalibur Gareth Ywain MR Total Size Sacramore Launfal Launfal North Excalibur Gareth Ywain MR Total

Special 11.57 23.63 0.00 0.00 49.47 0.00 0.00 84.67 Special 13.7% 27.9% 0.0% 0.0% 58.4% 0.0% 0.0% 100% Special 1,887.99 2,427.25 0.00 0.00 1,295.65 0.00 0.00 1,692.40+10 9.91 10.7 0.00 0.00 0.00 0.00 0.00 20.61 +10 48.1% 51.9% 0.0% 0.0% 0.0% 0.0% 0.0% 100% +10 2,274.27 5.00 0.00 0.00 0.00 0.00 0.00 1,096.14+9 27.66 18.61 0.00 9.33 9.67 0.00 0.00 65.27 +9 42.4% 28.5% 0.0% 14.3% 14.8% 0.0% 0.0% 100% +9 1,188.86 924.72 0.00 2,919.00 215.00 0.00 0.00 1,216.58+8 33.50 33.33 0.00 0.00 33.02 0.00 0.00 99.85 +8 33.6% 33.4% 0.0% 0.0% 33.1% 0.0% 0.0% 100% +8 315.07 605.99 0.00 0.00 723.61 0.00 0.00 547.29+7 44.54 29.41 0.00 0.00 7.11 0.00 0.00 81.06 +7 54.9% 36.3% 0.0% 0.0% 8.8% 0.0% 0.0% 100% +7 1,541.40 638.76 0.00 0.00 75.00 0.00 0.00 1,085.29+6 31.89 44.78 0.00 0.00 19.12 0.00 0.00 95.79 +6 33.3% 46.7% 0.0% 0.0% 20.0% 0.0% 0.0% 100% +6 722.26 559.02 0.00 0.00 634.58 0.00 0.00 628.45+5 84.52 36.36 15.39 0.00 16.41 0.00 0.00 152.68 +5 55.4% 23.8% 10.1% 0.0% 10.7% 0.0% 0.0% 100% +5 528.61 644.22 97.76 0.00 685.67 0.00 0.00 529.59+4 109.78 25.98 22.57 0.00 47.73 0.00 29.26 235.32 +4 46.7% 11.0% 9.6% 0.0% 20.3% 0.0% 12.4% 100% +4 318.60 1,138.98 822.36 0.00 355.17 0.00 219.64 452.60+3 206.01 83.74 57.25 25.30 63.35 0.00 58.08 493.73 +3 41.7% 17.0% 11.6% 5.1% 12.8% 0.0% 11.8% 100% +3 334.62 667.29 452.48 788.80 531.81 0.00 411.90 462.388gr 373.99 154.27 95.91 17.10 145.88 0.00 181.03 968.18 8gr 38.6% 15.9% 9.9% 1.8% 15.1% 0.0% 18.7% 100% 8gr 254.42 384.55 243.19 264.49 237.12 0.00 264.94 273.586gr 299.60 121.51 88.58 5.04 90.55 0.00 18.02 623.30 6gr 48.1% 19.5% 14.2% 0.8% 14.5% 0.0% 2.9% 100% 6gr 198.90 221.16 164.86 158.62 207.37 0.00 200.56 199.355gr 173.00 67.6 69.46 11.95 61.29 0.00 1.36 384.66 5gr 45.0% 17.6% 18.1% 3.1% 15.9% 0.0% 0.4% 100% 5gr 148.66 215.62 159.93 55.81 115.04 0.00 23.00 153.784gr 426.77 173.97 177.30 9.95 95.02 3.02 2.29 888.32 4gr 48.0% 19.6% 20.0% 1.1% 10.7% 0.3% 0.3% 100% 4gr 141.82 122.54 133.92 52.84 149.83 145.26 106.61 136.253gr 509.26 203.75 208.75 14.19 92.26 6.60 0.71 1,035.52 3gr 49.2% 19.7% 20.2% 1.4% 8.9% 0.6% 0.1% 100% 3gr 93.36 94.78 84.04 84.14 93.02 71.38 17.11 91.41+11 1678.91 760.98 618.76 65.23 268.34 80.96 0.00 3,473.18 +11 48.3% 21.9% 17.8% 1.9% 7.7% 2.3% 0.0% 100% +11 55.93 57.87 56.86 45.49 43.44 46.09 0.00 55.13+9 1385.40 636.2 413.19 42.28 208.52 101.83 0.00 2,787.42 +9 49.7% 22.8% 14.8% 1.5% 7.5% 3.7% 0.0% 100% +9 42.95 43.21 45.44 37.91 29.26 34.06 0.00 41.95+7 942.32 470.43 244.96 25.97 142.27 79.50 0.00 1,905.45 +7 49.5% 24.7% 12.9% 1.4% 7.5% 4.2% 0.0% 100% +7 33.58 36.89 39.93 30.48 24.85 31.57 0.00 34.43+5 1426.43 729.72 344.56 35.02 237.45 110.87 0.00 2,884.05 +5 49.5% 25.3% 11.9% 1.2% 8.2% 3.8% 0.0% 100% +5 18.57 21.49 22.58 18.54 12.24 18.49 0.00 19.27+3 373.13 256.21 77.03 8.29 98.75 9.08 0.00 822.49 +3 45.4% 31.2% 9.4% 1.0% 12.0% 1.1% 0.0% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00 0.00 10.00-3 36.66 27.99 4.36 0.88 12.75 1.58 0.00 84.22 -3 43.5% 33.2% 5.2% 1.0% 15.1% 1.9% 0.0% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00 0.00 3.00

Carats 8,184.85 3,909.17 2,438.07 270.53 1,698.96 393.44 290.75 17,185.77 US$/ct $101.65 $126.92 $85.56 $225.47 $160.74 $32.45 $282.77 $114.39

Contribution by Value % ValueSize Sacramore Launfal Launfal North Excalibur Gareth Ywain MR Total Size Sacramore Launfal Launfal North Excalibur Gareth Ywain MR Total

Special 21,844.00 57,356.00 0.00 0.00 64,095.69 0.00 0.00 143,295.69 Special 15.2% 40.0% 0.0% 0.0% 44.7% 0.0% 0.0% 100%+10 22,538.00 53.50 0.00 0.00 0.00 0.00 0.00 22,591.50 +10 99.8% 0.2% 0.0% 0.0% 0.0% 0.0% 0.0% 100%+9 32,884.00 17,209.00 0.00 27,234.27 2,079.05 0.00 0.00 79,406.32 +9 41.4% 21.7% 0.0% 34.3% 2.6% 0.0% 0.0% 100%+8 10,555.00 20,197.75 0.00 0.00 23,893.72 0.00 0.00 54,646.47 +8 19.3% 37.0% 0.0% 0.0% 43.7% 0.0% 0.0% 100%+7 68,654.00 18,786.00 0.00 0.00 533.25 0.00 0.00 87,973.25 +7 78.0% 21.4% 0.0% 0.0% 0.6% 0.0% 0.0% 100%+6 23,033.00 25,033.05 0.00 0.00 12,133.16 0.00 0.00 60,199.21 +6 38.3% 41.6% 0.0% 0.0% 20.2% 0.0% 0.0% 100%+5 44,677.85 23,423.87 1,504.47 0.00 11,251.92 0.00 0.00 80,858.11 +5 55.3% 29.0% 1.9% 0.0% 13.9% 0.0% 0.0% 100%+4 34,976.33 29,590.62 18,560.73 0.00 16,952.22 0.00 6426.60 106,506.50 +4 32.8% 27.8% 17.4% 0.0% 15.9% 0.0% 6.0% 100%+3 68,934.46 55,879.19 25,904.53 19,956.56 33,690.36 0.00 23923.36 228,288.46 +3 30.2% 24.5% 11.3% 8.7% 14.8% 0.0% 10.5% 100%8gr 95,151.68 59,324.93 23,324.31 4,522.73 34,591.24 0.00 47962.81 264,877.70 8gr 35.9% 22.4% 8.8% 1.7% 13.1% 0.0% 18.1% 100%6gr 59,589.02 26,872.89 14,603.47 799.43 18,777.54 0.00 3614.07 124,256.42 6gr 48.0% 21.6% 11.8% 0.6% 15.1% 0.0% 2.9% 100%5gr 25,718.29 14,576.24 11,108.47 666.93 7,050.81 0.00 31.28 59,152.02 5gr 43.5% 24.6% 18.8% 1.1% 11.9% 0.0% 0.1% 100%4gr 60,522.78 21,317.97 23,743.28 525.79 14,236.71 438.68 244.13 121,029.34 4gr 50.0% 17.6% 19.6% 0.4% 11.8% 0.4% 0.2% 100%3gr 47,544.08 19,310.62 17,543.14 1,193.95 8,582.15 471.11 12.15 94,657.20 3gr 50.2% 20.4% 18.5% 1.3% 9.1% 0.5% 0.0% 100%+11 93,906.15 44,039.63 35,182.16 2,967.30 11,656.26 3,731.60 0.00 191,483.10 +11 49.0% 23.0% 18.4% 1.5% 6.1% 1.9% 0.0% 100%+9 59,499.67 27,490.69 18,776.52 1,602.70 6,100.74 3,467.86 0.00 116,938.18 +9 50.9% 23.5% 16.1% 1.4% 5.2% 3.0% 0.0% 100%+7 31,639.29 17,352.12 9,781.12 791.46 3,534.73 2,510.21 0.00 65,608.93 +7 48.2% 26.4% 14.9% 1.2% 5.4% 3.8% 0.0% 100%+5 26,495.51 15,685.14 7,781.09 649.42 2,905.47 2,050.49 0.00 55,567.12 +5 47.7% 28.2% 14.0% 1.2% 5.2% 3.7% 0.0% 100%+3 3,731.30 2,562.10 770.30 82.90 987.50 90.80 0.00 8,224.90 +3 45.4% 31.2% 9.4% 1.0% 12.0% 1.1% 0.0% 100%-3 109.98 83.97 13.08 2.64 38.25 4.74 0.00 252.66 -3 43.5% 33.2% 5.2% 1.0% 15.1% 1.9% 0.0% 100%

US$ $832,004.39 $496,145.28 $208,596.67 $60,996.08 $273,090.77 $12,765.49 $82,214.40 $1,965,813.08

TABLE 5.33: Production September 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total

Special 13.91 50.68 13.00 43.49 0 121.08 Special 11.5% 41.9% 10.7% 35.9% 0.0% 100% Special 1,319.00 2,238.02 900.00 2,608.31 0.00 2,121.78+10 10.42 0 9.96 20.83 0 41.21 +10 25.3% 0.0% 24.2% 50.5% 0.0% 100% +10 1,899.00 0.00 956.00 1,232.93 0.00 1,334.42+9 0.00 0 0.00 9.51 0 9.51 +9 0.0% 0.0% 0.0% 100.0% 0.0% 100% +9 0.00 0.00 0.00 1,050.00 0.00 1,050.00+8 8.42 0 41.84 16.50 0 66.76 +8 12.6% 0.0% 62.7% 24.7% 0.0% 100% +8 750.00 0.00 1,482.46 1,261.96 0.00 1,335.58+7 21.47 7.6 35.31 81.33 0 145.71 +7 14.7% 5.2% 24.2% 55.8% 0.0% 100% +7 575.99 175.00 364.35 949.82 0.00 712.45+6 6.11 0 36.48 135.50 0 178.09 +6 3.4% 0.0% 20.5% 76.1% 0.0% 100% +6 125.00 0.00 1,116.42 780.34 0.00 826.70+5 41.37 10.6 52.26 174.43 0 278.66 +5 14.8% 3.8% 18.8% 62.6% 0.0% 100% +5 1,070.35 501.23 731.18 512.00 0.00 635.59+4 41.73 7.72 37.84 197.36 0 284.65 +4 14.7% 2.7% 13.3% 69.3% 0.0% 100% +4 473.60 594.29 566.00 431.68 0.00 460.09+3 79.55 20.18 100.65 389.02 0 589.40 +3 13.5% 3.4% 17.1% 66.0% 0.0% 100% +3 310.75 611.41 380.19 369.31 0.00 371.558gr 38.22 54.28 195.91 914.65 86.55 1,289.61 8gr 3.0% 4.2% 15.2% 70.9% 6.7% 100% 8gr 234.56 270.03 285.98 265.54 253.81 267.136gr 40.58 32.09 134.46 689.94 170.88 1,067.95 6gr 3.8% 3.0% 12.6% 64.6% 16.0% 100% 6gr 189.68 230.49 173.36 157.53 205.04 170.545gr 24.52 27.09 90.31 465.51 117.76 725.19 5gr 3.4% 3.7% 12.5% 64.2% 16.2% 100% 5gr 222.61 107.35 136.00 151.05 144.21 148.854gr 39.17 69.13 196.36 1006.81 267.92 1,579.39 4gr 2.5% 4.4% 12.4% 63.7% 17.0% 100% 4gr 125.99 109.55 153.22 127.74 133.45 131.043gr 45.27 112.3 237.00 1143.23 352.48 1,890.28 3gr 2.4% 5.9% 12.5% 60.5% 18.6% 100% 3gr 87.77 111.84 118.17 88.71 91.25 94.23+11 117.28 602.23 738.09 4122.37 1240.44 6,820.41 +11 1.7% 8.8% 10.8% 60.4% 18.2% 100% +11 51.22 54.25 53.32 49.59 52.51 50.96+9 97.26 567.43 448.04 3692.59 1116.37 5,921.69 +9 1.6% 9.6% 7.6% 62.4% 18.9% 100% +9 35.65 40.29 41.77 41.06 39.70 40.69+7 68.51 436.83 299.38 2584.75 761.81 4,151.28 +7 1.7% 10.5% 7.2% 62.3% 18.4% 100% +7 29.69 31.12 33.35 31.85 30.55 31.61+5 99.34 654.66 411.88 3978.02 1208.4 6,352.30 +5 1.6% 10.3% 6.5% 62.6% 19.0% 100% +5 17.10 18.29 20.16 25.47 18.86 23.00+3 32.95 228.16 132.87 1305.95 412.9 2,112.83 +3 1.6% 10.8% 6.3% 61.8% 19.5% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00-3 4.91 26.22 15.28 182.46 64.94 293.81 -3 1.7% 8.9% 5.2% 62.1% 22.1% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00

Carats 830.99 2,907.20 3,226.92 21,154.25 5,800.45 33,919.81 US$/ct $229.76 $91.34 $143.23 $88.69 $52.02 $91.29

Contribution by Value % ValueSize Sacramore Launfal Launfal North Excalibur MR Total Size Sacramore Launfal Launfal North Excalibur MR Total

Special 18,347.29 113,422.86 11,700.00 113,435.34 0.00 256,905.49 Special 7.1% 44.1% 4.6% 44.2% 0.0% 100%+10 19,787.58 0.00 9,521.76 25,681.95 0.00 54,991.29 +10 36.0% 0.0% 17.3% 46.7% 0.0% 100%+9 0.00 0.00 0.00 9,985.50 0.00 9,985.50 +9 0.0% 0.0% 0.0% 100.0% 0.0% 100%+8 6,315.00 0.00 62,026.04 20,822.28 0.00 89,163.32 +8 7.1% 0.0% 69.6% 23.4% 0.0% 100%+7 12,366.58 1,330.00 12,865.14 77,248.93 0.00 103,810.65 +7 11.9% 1.3% 12.4% 74.4% 0.0% 100%+6 763.75 0.00 40,727.11 105,736.70 0.00 147,227.56 +6 0.5% 0.0% 27.7% 71.8% 0.0% 100%+5 44,280.26 5,313.02 38,211.32 89,307.61 0.00 177,112.21 +5 25.0% 3.0% 21.6% 50.4% 0.0% 100%+4 19,763.49 4,587.93 21,417.49 85,195.73 0.00 130,964.64 +4 15.1% 3.5% 16.4% 65.1% 0.0% 100%+3 24,720.10 12,338.33 38,266.51 143,667.63 0.00 218,992.57 +3 11.3% 5.6% 17.5% 65.6% 0.0% 100%8gr 8,965.03 14,657.31 56,026.65 242,877.59 21,967.39 344,493.97 8gr 2.6% 4.3% 16.3% 70.5% 6.4% 100%6gr 7,697.28 7,396.40 23,309.63 108,683.41 35,036.75 182,123.47 6gr 4.2% 4.1% 12.8% 59.7% 19.2% 100%5gr 5,458.44 2,908.18 12,282.47 70,315.43 16,982.45 107,946.97 5gr 5.1% 2.7% 11.4% 65.1% 15.7% 100%4gr 4,934.97 7,573.18 30,086.16 128,613.91 35,753.10 206,961.32 4gr 2.4% 3.7% 14.5% 62.1% 17.3% 100%3gr 3,973.21 12,559.77 28,007.42 101,412.20 32,163.38 178,115.98 3gr 2.2% 7.1% 15.7% 56.9% 18.1% 100%+11 6,006.54 32,670.13 39,354.87 204,410.63 65,139.83 347,582.00 +11 1.7% 9.4% 11.3% 58.8% 18.7% 100%+9 3,467.49 22,862.27 18,714.97 151,617.35 44,318.05 240,980.13 +9 1.4% 9.5% 7.8% 62.9% 18.4% 100%+7 2,034.39 13,592.70 9,985.25 82,330.78 23,275.01 131,218.13 +7 1.6% 10.4% 7.6% 62.7% 17.7% 100%+5 1,698.63 11,975.44 8,303.12 101,303.89 22,794.38 146,075.46 +5 1.2% 8.2% 5.7% 69.4% 15.6% 100%+3 329.50 2,281.60 1,328.70 13,059.50 4,129.00 21,128.30 +3 1.6% 10.8% 6.3% 61.8% 19.5% 100%-3 14.73 78.66 45.84 547.38 194.82 881.43 -3 1.7% 8.9% 5.2% 62.1% 22.1% 100%

US$ $190,924.26 $265,547.78 $462,180.45 $1,876,253.74 $301,754.16 $3,096,660.39

TABLE 5.34: Production August 2000

Contribution by Weight % Weight Contribution by Size Price per CaratSize Palomides Excalibur Kay Sacramore MR Total Size Palomides Excalibur Kay Sacramore MR Total Size Palomides Excalibur Kay Sacramore MR Total

Special 97.73 11.01 0.00 27.12 0.00 135.86 Special 71.9% 8.1% 0.0% 20.0% 0.0% 100% Special 1,505.44 720.00 0.00 1,677.73 0.00 1,476.18+10 0.00 20.02 0.00 9.89 0.00 29.91 +10 0.0% 66.9% 0.0% 33.1% 0.0% 100% +10 0.00 90.06 0.00 220.00 0.00 133.03+9 37.44 9.65 0.00 17.79 0.00 64.88 +9 57.7% 14.9% 0.0% 27.4% 0.0% 100% +9 1,285.94 30.00 0.00 987.10 0.00 1,017.20+8 81.66 24.96 0.00 7.84 8.47 122.93 +8 66.4% 20.3% 0.0% 6.4% 6.9% 100% +8 487.59 732.22 0.00 1,100.00 1,500.00 646.07+7 58.86 21.33 0.00 14.65 0.00 94.84 +7 62.1% 22.5% 0.0% 15.4% 0.0% 100% +7 699.61 886.70 0.00 1,122.67 0.00 807.04+6 67.79 37.39 0.00 24.29 0.00 129.47 +6 52.4% 28.9% 0.0% 18.8% 0.0% 100% +6 308.93 618.98 0.00 286.29 0.00 394.22+5 145.71 91.83 0.00 47.90 0.00 285.44 +5 51.0% 32.2% 0.0% 16.8% 0.0% 100% +5 534.58 525.43 0.00 493.66 0.00 524.77+4 222.51 125.81 0.00 47.17 0.00 395.49 +4 56.3% 31.8% 0.0% 11.9% 0.0% 100% +4 524.91 342.20 0.00 693.27 0.00 486.87+3 351.84 139.44 0.00 113.71 6.21 611.20 +3 57.6% 22.8% 0.0% 18.6% 1.0% 100% +3 314.11 401.62 0.00 370.59 576.03 347.248gr 772.12 432.41 2.49 216.04 4.60 1,427.66 8gr 54.1% 30.3% 0.2% 15.1% 0.3% 100% 8gr 188.70 235.87 30.00 221.80 374.62 208.326gr 531.71 395.81 1.73 135.81 0.00 1,065.06 6gr 49.9% 37.2% 0.2% 12.8% 0.0% 100% 6gr 158.33 155.24 225.55 180.30 0.00 160.095gr 411.25 272.18 0.00 86.64 0.00 770.07 5gr 53.4% 35.3% 0.0% 11.3% 0.0% 100% 5gr 102.00 152.20 0.00 130.83 0.00 122.994gr 822.45 558.60 0.92 162.77 0.00 1,544.74 4gr 53.2% 36.2% 0.1% 10.5% 0.0% 100% 4gr 92.06 119.61 48.77 118.47 0.00 104.783gr 974.55 659.29 2.41 217.16 1.57 1,854.98 3gr 52.5% 35.5% 0.1% 11.7% 0.1% 100% 3gr 65.66 92.91 23.43 91.45 18.73 78.27+11 3,334.45 2,175.48 10.92 795.65 10.78 6,327.28 +11 52.7% 34.4% 0.2% 12.6% 0.2% 100% +11 43.61 45.64 31.78 47.44 51.90 44.78+9 2,662.10 1,718.50 13.32 659.05 14.89 5,067.86 +9 52.5% 33.9% 0.3% 13.0% 0.3% 100% +9 30.53 38.67 27.80 36.89 35.88 34.13+7 1,743.86 1,201.85 9.97 468.37 11.97 3,436.02 +7 50.8% 35.0% 0.3% 13.6% 0.3% 100% +7 25.33 32.54 24.23 29.00 29.66 28.36+5 2,706.12 1,722.47 24.79 721.09 22.94 5,197.41 +5 52.1% 33.1% 0.5% 13.9% 0.4% 100% +5 14.69 18.14 12.73 17.24 17.92 16.19+3 735.07 417.42 11.60 185.27 5.79 1,355.15 +3 54.2% 30.8% 0.9% 13.7% 0.4% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00-3 81.54 31.42 2.47 14.62 0.58 130.63 -3 62.4% 24.1% 1.9% 11.2% 0.4% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00

Carats 15,838.76 10,066.87 80.62 3,972.83 87.80 30,046.88 US$/ct $84.11 $78.57 $24.36 $102.85 $227.27 $84.99

Contribution by Value % ValueSize Palomides Excalibur Kay Sacramore MR Total Size Palomides Excalibur Kay Sacramore MR Total

Special 147127.00 7927.20 0.00 45500.00 0.00 200,554.20 Special 73.4% 4.0% 0.0% 22.7% 0.0% 100%+10 0.00 1803.00 0.00 2175.80 0.00 3,978.80 +10 0.0% 45.3% 0.0% 54.7% 0.0% 100%+9 48145.75 289.50 0.00 17560.50 0.00 65,995.75 +9 73.0% 0.4% 0.0% 26.6% 0.0% 100%+8 39816.55 18276.10 0.00 8624.00 12,705.00 79,421.65 +8 50.1% 23.0% 0.0% 10.9% 16.0% 100%+7 41179.00 18913.40 0.00 16447.15 0.00 76,539.55 +7 53.8% 24.7% 0.0% 21.5% 0.0% 100%+6 20942.05 23143.70 0.00 6954.05 0.00 51,039.80 +6 41.0% 45.3% 0.0% 13.6% 0.0% 100%+5 77893.70 48250.59 0.00 23646.49 0.00 149,790.78 +5 52.0% 32.2% 0.0% 15.8% 0.0% 100%+4 116797.02 43052.41 0.00 32701.39 0.00 192,550.82 +4 60.7% 22.4% 0.0% 17.0% 0.0% 100%+3 110516.61 56002.05 0.00 42140.28 3,577.14 212,236.08 +3 52.1% 26.4% 0.0% 19.9% 1.7% 100%8gr 145695.38 101993.73 74.70 47917.84 1,723.25 297,404.90 8gr 49.0% 34.3% 0.0% 16.1% 0.6% 100%6gr 84184.09 61445.56 390.20 24486.04 0.00 170,505.89 6gr 49.4% 36.0% 0.2% 14.4% 0.0% 100%5gr 41946.53 41426.12 0.00 11335.05 0.00 94,707.70 5gr 44.3% 43.7% 0.0% 12.0% 0.0% 100%4gr 75712.67 66815.64 44.87 19283.74 0.00 161,856.92 4gr 46.8% 41.3% 0.0% 11.9% 0.0% 100%3gr 63990.49 61255.93 56.47 19858.65 29.40 145,190.94 3gr 44.1% 42.2% 0.0% 13.7% 0.0% 100%+11 145405.54 99290.27 347.05 37743.67 559.44 283,345.97 +11 51.3% 35.0% 0.1% 13.3% 0.2% 100%+9 81285.51 66461.96 370.27 24312.82 534.21 172,964.77 +9 47.0% 38.4% 0.2% 14.1% 0.3% 100%+7 44175.74 39104.39 241.57 13584.36 355.08 97,461.14 +7 45.3% 40.1% 0.2% 13.9% 0.4% 100%+5 39765.28 31246.46 315.70 12429.76 410.98 84,168.18 +5 47.2% 37.1% 0.4% 14.8% 0.5% 100%+3 7350.70 4174.20 116.00 1852.70 57.90 13,551.50 +3 54.2% 30.8% 0.9% 13.7% 0.4% 100%-3 244.62 94.26 7.41 43.86 1.74 391.89 -3 62.4% 24.1% 1.9% 11.2% 0.4% 100%

US$ $1,332,174.23 $790,966.47 $1,964.24 $408,598.15 $19,954.14 $2,553,657.23

TABLE 5.35: Production February 2001

Contribution by Weight % Weight Contribution by Size Price per CaratSize Palomides Excalibur Kaye Sacramore Total Size Palomides Excalibur Kaye Sacramore Total Size Palomides Excalibur Kaye Sacramore Total

Special 133.24 0.00 0.00 52.70 185.94 Special 72% 0% 0% 28% 100% Special 1,226.39 0.00 0.00 2,429.45 1,567.37+10 9.84 0.00 0.00 20.60 30.44 +10 32% 0% 0% 68% 100% +10 1,200.00 0.00 0.00 1,354.37 1,304.47+9 9.11 0.00 0.00 9.36 18.47 +9 49% 0% 0% 51% 100% +9 1,500.00 0.00 0.00 900.00 1,195.94+8 8.71 0.00 0.00 8.77 17.48 +8 50% 0% 0% 50% 100% +8 1,200.00 0.00 0.00 1,400.00 1,300.34+7 28.51 0.00 0.00 80.76 109.27 +7 26% 0% 0% 74% 100% +7 143.74 0.00 0.00 741.30 585.39+6 6.64 0.00 0.00 49.52 56.16 +6 12% 0% 0% 88% 100% +6 50.00 0.00 0.00 410.98 368.30+5 86.07 0.00 10.68 111.07 207.82 +5 41% 0% 5% 53% 100% +5 505.68 0.00 119.12 433.74 447.37+4 66.31 4.12 0.00 134.07 204.50 +4 32% 2% 0% 66% 100% +4 586.11 60.00 0.00 602.78 586.44+3 176.38 3.30 3.59 223.72 406.99 +3 43% 1% 1% 55% 100% +3 316.93 425.00 125.00 405.37 364.738gr 358.63 1.88 7.20 428.84 796.55 8gr 45% 0% 1% 54% 100% 8gr 250.00 1,000.00 159.17 254.78 253.526gr 263.84 4.29 0.00 293.61 561.74 6gr 47% 1% 0% 52% 100% 6gr 171.26 29.99 0.00 189.54 179.745gr 202.68 2.51 0.00 226.26 431.45 5gr 47% 1% 0% 52% 100% 5gr 141.81 77.35 0.00 148.25 144.814gr 379.11 4.03 0.00 388.46 771.60 4gr 49% 1% 0% 50% 100% 4gr 114.87 100.55 0.00 115.67 115.203gr 460.27 5.46 2.94 498.43 967.10 3gr 48% 1% 0% 52% 100% 3gr 76.39 52.25 38.66 83.77 79.95+11 1,479.21 37.76 13.18 1,585.75 3,115.90 +11 47% 1% 0% 51% 100% +11 48.56 47.06 54.31 53.60 51.13+9 1,178.28 35.94 8.11 1,239.82 2,462.15 +9 48% 1% 0% 50% 100% +9 37.38 28.48 42.92 36.47 36.81+7 787.15 30.68 2.75 806.09 1,626.67 +7 48% 2% 0% 50% 100% +7 25.69 23.15 29.40 27.55 26.57+5 1,112.85 68.77 4.67 1,102.46 2,288.75 +5 49% 3% 0% 48% 100% +5 13.71 14.18 14.99 17.26 15.44+3 213.42 23.62 1.94 186.83 425.81 +3 50% 6% 0% 44% 100% +3 10.00 10.00 10.00 10.00 10.00-3 13.09 2.14 0.11 9.37 24.71 -3 53% 9% 0% 38% 100% -3 3.00 3.00 3.00 3.00 3.00

Carats 6,973.34 224.50 55.17 7,456.49 14,709.50 US$/ct $105.81 $41.30 $76.40 $125.40 $114.65

Contribution by Value % ValueSize Palomides Excalibur Kaye Sacramore Total Size Palomides Excalibur Kaye Sacramore Total

Special 163,404.20 0.00 0.00 128,032.00 291,436.20 Special 56.1% 0.0% 0.0% 43.9% 100%+10 11,808.00 0.00 0.00 27,900.00 39,708.00 +10 29.7% 0.0% 0.0% 70.3% 100%+9 13,665.00 0.00 0.00 8,424.00 22,089.00 +9 61.9% 0.0% 0.0% 38.1% 100%+8 10,452.00 0.00 0.00 12,278.00 22,730.00 +8 46.0% 0.0% 0.0% 54.0% 100%+7 4,098.03 0.00 0.00 59,867.15 63,965.18 +7 6.4% 0.0% 0.0% 93.6% 100%+6 332.00 0.00 0.00 20,351.60 20,683.60 +6 1.6% 0.0% 0.0% 98.4% 100%+5 43,524.20 0.00 1,272.15 48,175.40 92,971.75 +5 46.8% 0.0% 1.4% 51.8% 100%+4 38,864.95 247.20 0.00 80,815.05 119,927.20 +4 32.4% 0.2% 0.0% 67.4% 100%+3 55,899.30 1,402.50 448.75 90,689.50 148,440.05 +3 37.7% 0.9% 0.3% 61.1% 100%8gr 89,656.88 1,880.00 1,146.00 109,261.95 201,944.83 8gr 44.4% 0.9% 0.6% 54.1% 100%6gr 45,184.30 128.65 0.00 55,652.15 100,965.10 6gr 44.8% 0.1% 0.0% 55.1% 100%5gr 28,741.78 194.15 0.00 33,542.43 62,478.36 5gr 46.0% 0.3% 0.0% 53.7% 100%4gr 43,548.90 405.20 0.00 44,934.03 88,888.13 4gr 49.0% 0.5% 0.0% 50.6% 100%3gr 35,160.87 285.30 113.65 41,755.86 77,315.68 3gr 45.5% 0.4% 0.1% 54.0% 100%+11 71,833.53 1,776.84 715.77 84,993.38 159,319.52 +11 45.1% 1.1% 0.4% 53.3% 100%+9 44,039.81 1,023.48 348.09 45,221.84 90,633.22 +9 48.6% 1.1% 0.4% 49.9% 100%+7 20,221.15 710.11 80.85 22,211.63 43,223.74 +7 46.8% 1.6% 0.2% 51.4% 100%+5 15,259.06 975.39 69.98 19,028.74 35,333.17 +5 43.2% 2.8% 0.2% 53.9% 100%+3 2,134.20 236.20 19.40 1,868.30 4,258.10 +3 50.1% 5.5% 0.5% 43.9% 100%-3 39.27 6.42 0.33 28.11 74.13 -3 53.0% 8.7% 0.4% 37.9% 100%

US$ $737,867.43 $9,271.44 $4,214.97 $935,031.12 $1,686,384.96

TABLE 5.36: Production May 2001

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Palomides Ector Gawain Gareth Kaye MR Total Size Sacramore Palomides Ector Gawain Gareth Kaye MR Total Size Sacramore Palomides Ector Gawain Gareth Kay MR Total

Special 12.84 256.37 11.83 0 38.79 80.89 15.16 415.88 Special 3.1% 61.6% 2.8% 0.0% 9.3% 19.5% 3.6% 100% Special 10.00 2,218.41 1,200.00 0.00 140.22 482.22 1,100.00 1,548.96+10 0.00 30.43 0 0 0 0.00 10.05 40.48 +10 0.0% 75.2% 0.0% 0.0% 0.0% 0.0% 24.8% 100% +10 0.00 1,056.80 0.00 0.00 0.00 0.00 150.00 831.67+9 0.00 46.4 0 0 0 18.24 0 64.64 +9 0.0% 71.8% 0.0% 0.0% 0.0% 28.2% 0.0% 100% +9 0.00 129.05 0.00 0.00 0.00 1,071.88 0.00 395.10+8 16.44 32.59 7.86 0 0 24.93 23.97 105.79 +8 15.5% 30.8% 7.4% 0.0% 0.0% 23.6% 22.7% 100% +8 563.20 896.56 500.00 0.00 0.00 828.18 924.45 805.50+7 21.94 21.52 7.56 7.31 6.8 0.00 21.42 86.55 +7 25.3% 24.9% 8.7% 8.4% 7.9% 0.0% 24.7% 100% +7 521.67 815.73 150.00 700.00 1,100.00 0.00 1,366.71 831.96+6 5.93 56.35 0 0 0 6.55 19.15 87.98 +6 6.7% 64.0% 0.0% 0.0% 0.0% 7.4% 21.8% 100% +6 1,500.00 742.89 0.00 0.00 0.00 2,200.00 429.92 834.28+5 20.44 68.94 42.54 0.00 22.08 4.89 32.84 191.73 +5 10.7% 36.0% 22.2% 0.0% 11.5% 2.6% 17.1% 100% +5 840.32 697.09 553.47 0.00 24.77 60.00 338.69 525.43+4 35.29 118 24.66 3.83 4.09 29.80 33.3 248.97 +4 14.2% 47.4% 9.9% 1.5% 1.6% 12.0% 13.4% 100% +4 547.60 402.87 265.92 60.00 900.00 171.58 412.47 386.31+3 48.92 228.39 45.15 9.27 30.52 53.79 89.68 505.72 +3 9.7% 45.2% 8.9% 1.8% 6.0% 10.6% 17.7% 100% +3 494.70 289.32 265.70 222.68 175.94 288.27 299.83 300.768gr 104.57 519.04 74.65 22.13 41.87 94.19 99.38 955.83 8gr 10.9% 54.3% 7.8% 2.3% 4.4% 9.9% 10.4% 100% 8gr 206.78 234.30 234.60 237.48 217.96 206.65 263.44 230.986gr 58.43 359.55 33.97 4.69 29.45 44.45 92.03 622.57 6gr 9.4% 57.8% 5.5% 0.8% 4.7% 7.1% 14.8% 100% 6gr 151.30 154.19 133.73 70.65 72.92 174.28 139.28 147.565gr 36.91 244.72 23.56 10.33 11.52 30.70 48.69 406.43 5gr 9.1% 60.2% 5.8% 2.5% 2.8% 7.6% 12.0% 100% 5gr 86.62 132.21 154.07 109.46 38.85 112.19 148.09 126.504gr 75.72 490.6 67.16 26.61 40.21 67.26 96.29 863.85 4gr 8.8% 56.8% 7.8% 3.1% 4.7% 7.8% 11.1% 100% 4gr 124.84 96.20 77.63 113.85 75.79 116.07 104.99 99.393gr 87.99 556.35 55.13 17.47 45.96 61.45 118.06 942.41 3gr 9.3% 59.0% 5.8% 1.9% 4.9% 6.5% 12.5% 100% 3gr 98.36 76.29 72.22 99.31 62.48 90.99 84.53 79.85+11 318.48 1985.56 194.69 70.03 142.16 261.56 461.21 3,433.69 +11 9.3% 57.8% 5.7% 2.0% 4.1% 7.6% 13.4% 100% +11 52.23 47.69 51.48 45.89 32.57 51.83 47.84 48.00+9 267.29 1566.89 150.39 49.23 116.35 211.68 400.12 2,761.95 +9 9.7% 56.7% 5.4% 1.8% 4.2% 7.7% 14.5% 100% +9 36.48 34.96 33.07 37.83 26.15 38.07 35.03 34.93+7 171.16 1047.96 110.10 32.65 81.94 147.65 328.41 1,919.87 +7 8.9% 54.6% 5.7% 1.7% 4.3% 7.7% 17.1% 100% +7 28.03 23.29 24.23 26.68 18.31 25.74 24.31 23.98+5 264.99 1714.45 177.04 45.17 127.28 240.59 529.09 3,098.61 +5 8.6% 55.3% 5.7% 1.5% 4.1% 7.8% 17.1% 100% +5 18.98 15.08 15.92 16.00 12.66 17.35 16.47 15.79+3 56.95 399.72 56.79 11.11 29.06 67.04 134.37 755.04 +3 7.5% 52.9% 7.5% 1.5% 3.8% 8.9% 17.8% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00-3 3.96 57.25 4.83 1.38 0.85 6.98 14.01 89.26 -3 4.4% 64.1% 5.4% 1.5% 1.0% 7.8% 15.7% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00

1,608.25 9,801.08 1,087.91 311.21 768.93 1,452.64 2567.23 17,597.25 US$/ct $111.30 $138.77 $107.83 $82.51 $66.63 $130.01 $97.40 $123.44

Contribution by Value % ValueSize Sacramore Palomides Ector Gawain Gareth Kaye MR Total Size Sacramore Palomides Ector Gawain Gareth Kaye MR Total

Special 128.40 568,733.77 14,196.00 0.00 5,439.13 39,006.78 16,676.00 644,180.08 Special 0.0% 88.3% 2.2% 0.0% 0.8% 6.1% 2.6% 100%+10 0.00 32,158.42 0.00 0.00 0.00 0.00 1,507.50 33,665.92 +10 0.0% 95.5% 0.0% 0.0% 0.0% 0.0% 4.5% 100%+9 0.00 5,987.92 0.00 0.00 0.00 19,551.09 0.00 25,539.01 +9 0.0% 23.4% 0.0% 0.0% 0.0% 76.6% 0.0% 100%+8 9,259.00 29,218.89 3,930.00 0.00 0.00 20,646.53 22,159.07 85,213.48 +8 10.9% 34.3% 4.6% 0.0% 0.0% 24.2% 26.0% 100%+7 11,445.50 17,554.51 1,134.00 5,117.00 7,480.00 0.00 29,274.93 72,005.94 +7 15.9% 24.4% 1.6% 7.1% 10.4% 0.0% 40.7% 100%+6 8,895.00 41,861.85 0.00 0.00 0.00 14,410.00 8,232.97 73,399.82 +6 12.1% 57.0% 0.0% 0.0% 0.0% 19.6% 11.2% 100%+5 17,176.20 48,057.10 23,544.75 0.00 546.88 293.40 11,122.55 100,740.88 +5 17.0% 47.7% 23.4% 0.0% 0.5% 0.3% 11.0% 100%+4 19,324.70 47,538.15 6,557.70 229.80 3,681.00 5,113.00 13,735.40 96,179.75 +4 20.1% 49.4% 6.8% 0.2% 3.8% 5.3% 14.3% 100%+3 24,200.75 66,077.33 11,996.20 2,064.20 5,369.75 15,506.00 26,888.45 152,102.68 +3 15.9% 43.4% 7.9% 1.4% 3.5% 10.2% 17.7% 100%8gr 21,622.85 121,613.33 17,512.95 5,255.35 9,125.80 19,464.30 26,180.90 220,775.48 8gr 9.8% 55.1% 7.9% 2.4% 4.1% 8.8% 11.9% 100%6gr 8,840.40 55,440.43 4,542.68 331.35 2,147.43 7,746.60 12,817.70 91,866.59 6gr 9.6% 60.3% 4.9% 0.4% 2.3% 8.4% 14.0% 100%5gr 3,197.05 32,354.83 3,629.90 1,130.70 447.58 3,444.23 7,210.63 51,414.92 5gr 6.2% 62.9% 7.1% 2.2% 0.9% 6.7% 14.0% 100%4gr 9,452.53 47,195.70 5,213.33 3,029.65 3,047.48 7,807.20 10,109.33 85,855.22 4gr 11.0% 55.0% 6.1% 3.5% 3.5% 9.1% 11.8% 100%3gr 8,654.56 42,441.73 3,981.53 1,735.03 2,871.79 5,591.12 9,979.83 75,255.59 3gr 11.5% 56.4% 5.3% 2.3% 3.8% 7.4% 13.3% 100%+11 16,635.43 94,684.79 10,022.86 3,213.43 4,630.43 13,555.49 22,062.46 164,804.89 +11 10.1% 57.5% 6.1% 1.9% 2.8% 8.2% 13.4% 100%+9 9,750.91 54,778.49 4,973.40 1,862.30 3,042.91 8,059.46 14,014.70 96,482.17 +9 10.1% 56.8% 5.2% 1.9% 3.2% 8.4% 14.5% 100%+7 4,797.06 24,412.01 2,668.23 871.11 1,500.01 3,800.09 7,983.22 46,031.73 +7 10.4% 53.0% 5.8% 1.9% 3.3% 8.3% 17.3% 100%+5 5,028.69 25,855.24 2,818.56 722.63 1,611.14 4,173.42 8,712.73 48,922.41 +5 10.3% 52.8% 5.8% 1.5% 3.3% 8.5% 17.8% 100%+3 569.50 3,997.20 567.90 111.10 290.60 670.40 1,343.70 7,550.40 +3 7.5% 52.9% 7.5% 1.5% 3.8% 8.9% 17.8% 100%-3 11.88 171.75 14.49 4.14 2.55 20.94 42.03 267.78 -3 4.4% 64.1% 5.4% 1.5% 1.0% 7.8% 15.7% 100%

US$ $178,990.41 $1,360,133.45 $117,304.48 $25,677.79 $51,234.48 $188,860.04 $250,054.09 $2,172,254.75

TABLE 5.37: Production October 2001

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Palomides Launfal North Launfal Kaye MR Total Size Sacramore Palomidies Launfal North Launfal Kaye MR Total Size Sacramore Palomides Launfal North Launfal Kaye MR Total

Special 35.81 0 0 49.57 19.5 0 104.88 Special 34.1% 0.0% 0.0% 47.3% 18.6% 0.0% 100% Special 1,116.28 1,908.98 1,487.91

+10 0.00 0 0 0 10.79 0 10.79 +10 0.0% 0.0% 0.0% 0.0% 100.0% 0.0% 100% +10 250.00

+9 36.37 0 0 9.34 0 18.59 64.30 +9 56.6% 0.0% 0.0% 14.5% 0.0% 28.9% 100% +9 676.39 50.00 515.54

+8 0.00 0 0 8.12 0 0 8.12 +8 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 100% +8 2,863.00 2,863.00

+7 0.00 0 7.07 28.48 0 0 35.55 +7 0.0% 0.0% 19.9% 80.1% 0.0% 0.0% 100% +7 1,550.20 1,725.17

+6 32.34 0 13.17 49.02 0 18.45 112.98 +6 28.6% 0.0% 11.7% 43.4% 0.0% 16.3% 100% +6 921.52 387.31 164.01 557.49

+5 46.63 0 5.06 82.51 10.08 4.89 149.17 +5 31.3% 0.0% 3.4% 55.3% 6.8% 3.3% 100% +5 931.18 60.00 555.62 343.71 902.02 653.24

+4 55.45 8.4 41.54 107.49 4.5 3.79 221.17 +4 25.1% 3.8% 18.8% 48.6% 2.0% 1.7% 100% +4 419.26 233.57 553.86 523.40 20.00 473.14

+3 104.12 3.43 30.93 183.09 12.65 15.82 350.04 +3 29.7% 1.0% 8.8% 52.3% 3.6% 4.5% 100% +3 375.79 108.74 353.87 376.27 740.40 245.30 378.77

8gr 250.66 2.13 92.61 275.60 30.65 43.5 695.15 8gr 36.1% 0.3% 13.3% 39.6% 4.4% 6.3% 100% 8gr 228.31 25.00 321.91 343.89 281.50 246.97 289.49

6gr 145.18 4.58 71.08 177.43 31.45 36.37 466.09 6gr 31.1% 1.0% 15.3% 38.1% 6.7% 7.8% 100% 6gr 201.83 295.74 219.51 228.39 145.89 157.72 208.34

5gr 101.10 1.32 72.61 124.69 13.01 26.8 339.53 5gr 29.8% 0.4% 21.4% 36.7% 3.8% 7.9% 100% 5gr 147.84 300.00 135.06 188.03 86.24 76.41 152.46

4gr 226.14 4.08 154.67 260.66 35.44 54.84 735.83 4gr 30.7% 0.6% 21.0% 35.4% 4.8% 7.5% 100% 4gr 112.97 152.08 130.47 144.92 61.58 81.61 123.37

3gr 282.21 2.29 218.29 280.17 53.39 59.62 895.97 3gr 31.5% 0.3% 24.4% 31.3% 6.0% 6.7% 100% 3gr 80.85 81.94 100.74 102.76 67.47 74.85 91.35

+11 977.74 23.55 636.32 884.59 153.98 222.05 2,898.23 +11 33.7% 0.8% 22.0% 30.5% 5.3% 7.7% 100% +11 46.06 42.88 53.19 61.91 37.58 41.52 51.64

+9 710.08 17.22 448.55 718.63 166.82 204.22 2,265.52 +9 31.3% 0.8% 19.8% 31.7% 7.4% 9.0% 100% +9 32.59 31.56 40.07 41.93 25.97 32.02 36.49

+7 468.95 10.28 277.62 472.84 128.95 178.11 1,536.75 +7 30.5% 0.7% 18.1% 30.8% 8.4% 11.6% 100% +7 25.25 24.18 27.53 27.70 19.54 20.47 25.38

+5 706.48 18.04 378.69 675.05 188.95 306.1 2,273.31 +5 31.1% 0.8% 16.7% 29.7% 8.3% 13.5% 100% +5 16.36 13.08 18.05 19.34 11.34 14.18 16.79

+3 142.33 6.76 59.51 128.81 42.36 72.95 452.72 +3 31.4% 1.5% 13.1% 28.5% 9.4% 16.1% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00 10.00

-3 9.91 1.61 3.86 7.25 3.83 4.63 31.09 -3 31.9% 5.2% 12.4% 23.3% 12.3% 14.9% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00 3.00

Carats 4,331.50 103.69 2,511.58 4,523.34 906.35 1270.73 13,647.19 US$/ct 102.28 68.06 90.34 152.57 79.89 56.21 110.72

Contribution by Value % ValueSize Sacramore Palomidies Launfal North Launfal Kaye MR Total Size Sacramore Palomidies Launfal North Launfal Kaye MR Total

Special 39,974.08 0.00 0.00 94,628.05 21,450.00 0.00 156,052.13 Special 25.6% 0.0% 0.0% 60.6% 13.7% 0.0% 100%+10 0.00 0.00 0.00 0.00 2,697.50 0.00 2,697.50 +10 0.0% 0.0% 0.0% 0.0% 100.0% 0.0% 100%+9 24,600.35 0.00 0.00 467.00 0.00 8,082.00 33,149.35 +9 74.2% 0.0% 0.0% 1.4% 0.0% 24.4% 100%+8 0.00 0.00 0.00 23,247.56 0.00 0.00 23,247.56 +8 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 100%+7 0.00 0.00 17,180.10 44,149.77 0.00 0.00 61,329.87 +7 0.0% 0.0% 28.0% 72.0% 0.0% 0.0% 100%+6 29,801.85 0.00 11,171.94 18,985.94 0.00 3,026.00 62,985.73 +6 47.3% 0.0% 17.7% 30.1% 0.0% 4.8% 100%+5 43,420.92 0.00 303.60 45,844.21 3,464.60 4,410.88 97,444.20 +5 44.6% 0.0% 0.3% 47.0% 3.6% 4.5% 100%+4 23,247.97 1,961.99 23,007.34 56,260.27 90.00 75.80 104,643.37 +4 22.2% 1.9% 22.0% 53.8% 0.1% 0.1% 100%+3 39,127.25 372.98 10,945.20 68,891.27 9,366.06 3,880.65 132,583.41 +3 29.5% 0.3% 8.3% 52.0% 7.1% 2.9% 100%8gr 57,228.18 53.25 29,812.09 94,776.08 8,627.98 10,743.20 201,240.77 8gr 28.4% 0.0% 14.8% 47.1% 4.3% 5.3% 100%6gr 29,301.68 1,354.49 15,602.77 40,523.24 4,588.24 5,736.28 97,106.69 6gr 30.2% 1.4% 16.1% 41.7% 4.7% 5.9% 100%5gr 14,946.62 396.00 9,806.71 23,445.46 1,121.98 2,047.79 51,764.56 5gr 28.9% 0.8% 18.9% 45.3% 2.2% 4.0% 100%4gr 25,547.04 620.49 20,179.79 37,774.85 2,182.40 4,475.49 90,780.05 4gr 28.1% 0.7% 22.2% 41.6% 2.4% 4.9% 100%3gr 22,816.68 187.64 21,990.53 28,790.27 3,602.22 4,462.56 81,849.91 3gr 27.9% 0.2% 26.9% 35.2% 4.4% 5.5% 100%+11 45,034.70 1,009.82 33,845.86 54,764.97 5,786.57 9,219.52 149,661.44 +11 30.1% 0.7% 22.6% 36.6% 3.9% 6.2% 100%+9 23,141.51 543.46 17,973.40 30,132.16 4,332.32 6,539.12 82,661.96 +9 28.0% 0.7% 21.7% 36.5% 5.2% 7.9% 100%+7 11,840.99 248.57 7,642.88 13,097.67 2,519.68 3,645.91 38,995.70 +7 30.4% 0.6% 19.6% 33.6% 6.5% 9.3% 100%+5 11,558.01 235.96 6,835.35 13,055.47 2,142.69 4,340.50 38,167.99 +5 30.3% 0.6% 17.9% 34.2% 5.6% 11.4% 100%+3 1,423.30 67.60 595.10 1,288.10 423.60 729.50 4,527.20 +3 31.4% 1.5% 13.1% 28.5% 9.4% 16.1% 100%-3 29.73 4.83 11.58 21.75 11.49 13.89 93.27 -3 31.9% 5.2% 12.4% 23.3% 12.3% 14.9% 100%

US$ 443,040.87 7,057.09 226,904.25 690,144.07 72,407.32 71429.07 1,510,982.67

TABLE 5.38: Production December 2001

Contribution by Weight % Weight Contribution by Size Price per CaratSize Sacramore Palomides Launfal North Launfal Gareth MR Total Size Sacramore Palomides Launfal North Launfal Gareth MR Total Size Sacramore Palomides Launfal North Launfal Gareth MR Total

Special 19.00 0 0 12.93 0 0 31.93 Special 59.5% 0.0% 0.0% 40.5% 0.0% 0.0% 100% Special 400.00 75.00 268.39

+10 0.00 20.78 0 10.6 0 0 31.38 +10 0.0% 66.2% 0.0% 33.8% 0.0% 0.0% 100% +10 1,775.41 880.00 1,472.94

+9 9.49 0 0 8.9 0 0 18.39 +9 51.6% 0.0% 0.0% 48.4% 0.0% 0.0% 100% +9 100.00 850.00 462.97

+8 0.00 0 0 24.27 0 0 24.27 +8 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 100% +8 574.97 574.97

+7 7.48 14.1 0 28.97 0 0 50.55 +7 14.8% 27.9% 0.0% 57.3% 0.0% 0.0% 100% +7 1,500.00 1,120.04 1,220.50 1,233.84

+6 49.42 19.22 0 50.64 12.04 12.25 143.57 +6 34.4% 13.4% 0.0% 35.3% 8.4% 8.5% 100% +6 1,102.91 372.26 237.26 27.39 624.20 568.73

+5 32.09 32.22 5.30 63.23 10.66 15.52 159.02 +5 20.2% 20.3% 3.3% 39.8% 6.7% 9.8% 100% +5 772.95 399.62 60.00 321.79 227.79 462.17 427.28

+4 33.89 33.89 8.45 108.74 8.48 0 193.45 +4 17.5% 17.5% 4.4% 56.2% 4.4% 0.0% 100% +4 408.47 446.35 437.55 451.37 266.48 434.27

+3 98.57 62.42 40.47 177.33 8.89 19.19 406.87 +3 24.2% 15.3% 9.9% 43.6% 2.2% 4.7% 100% +3 337.82 223.85 518.88 295.33 523.39 222.40 318.44

8gr 133.01 159.4 81.37 291.44 22.98 42.87 731.07 8gr 18.2% 21.8% 11.1% 39.9% 3.1% 5.9% 100% 8gr 188.88 203.48 279.41 216.95 115.13 176.71 210.30

6gr 88.30 109.48 75.79 177.19 28.06 20.65 499.47 6gr 17.7% 21.9% 15.2% 35.5% 5.6% 4.1% 100% 6gr 137.89 411.72 150.68 163.87 198.48 196.94 214.91

5gr 68.78 76.47 61.75 125.14 19.43 16.58 368.15 5gr 18.7% 20.8% 16.8% 34.0% 5.3% 4.5% 100% 5gr 98.99 128.72 136.04 105.88 103.71 175.46 117.41

4gr 138.06 163.71 148.18 245.36 24.61 38.83 758.75 4gr 18.2% 21.6% 19.5% 32.3% 3.2% 5.1% 100% 4gr 112.22 106.53 127.05 103.51 120.33 123.30 111.90

3gr 183.38 188.8 191.12 295.64 35.87 41.64 936.45 3gr 19.6% 20.2% 20.4% 31.6% 3.8% 4.4% 100% 3gr 79.26 71.87 91.86 71.04 69.63 63.39 76.67

+11 535.80 570.73 570.89 911.74 118.67 131.78 2,839.61 +11 18.9% 20.1% 20.1% 32.1% 4.2% 4.6% 100% +11 42.11 38.85 51.23 42.35 38.89 39.55 43.11

+9 448.48 459.63 374.64 700.52 82.3 123.82 2,189.39 +9 20.5% 21.0% 17.1% 32.0% 3.8% 5.7% 100% +9 31.16 30.02 35.11 33.75 26.10 28.47 32.08

+7 299.09 318.24 221.14 443.91 57.87 112.29 1,452.54 +7 20.6% 21.9% 15.2% 30.6% 4.0% 7.7% 100% +7 22.68 21.69 24.97 25.08 19.62 21.11 23.30

+5 416.80 467.22 304.41 561.67 82.53 191.53 2,024.16 +5 20.6% 23.1% 15.0% 27.7% 4.1% 9.5% 100% +5 15.26 15.07 15.13 16.87 12.82 12.76 15.31

+3 83.47 99.66 59.74 86.07 16.7 47.37 393.01 +3 21.2% 25.4% 15.2% 21.9% 4.2% 12.1% 100% +3 10.00 10.00 10.00 10.00 10.00 10.00 10.00

-3 5.79 11.21 5.35 6.55 1.52 3.89 34.31 -3 16.9% 32.7% 15.6% 19.1% 4.4% 11.3% 100% -3 3.00 3.00 3.00 3.00 3.00 3.00 3.00

2,650.90 2,807.18 2,148.60 4,330.84 530.61 818.21 13,286.34 US$/ct $102.19 $96.58 $73.11 $100.82 $65.00 $67.35 $92.23

Contribution by Value % ValueSize Sacramore Palomides Launfal North Launfal Gareth MR Total Size Sacramore Palomides Launfal North Launfal Gareth MR Total

Special 7,600.00 0.00 0.00 969.75 0.00 0.00 8,569.75 Special 88.7% 0.0% 0.0% 11.3% 0.0% 0.0% 100%+10 0.00 36,893.00 0.00 9,328.00 0.00 0.00 46,221.00 +10 0.0% 79.8% 0.0% 20.2% 0.0% 0.0% 100%+9 949.00 0.00 0.00 7,565.00 0.00 0.00 8,514.00 +9 11.1% 0.0% 0.0% 88.9% 0.0% 0.0% 100%+8 0.00 0.00 0.00 13,954.50 0.00 0.00 13,954.50 +8 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 100%+7 11,220.00 15,792.50 0.00 35,358.00 0.00 0.00 62,370.50 +7 18.0% 25.3% 0.0% 56.7% 0.0% 0.0% 100%+6 54,506.00 7,154.75 0.00 12,015.00 329.75 7,646.50 81,652.00 +6 66.8% 8.8% 0.0% 14.7% 0.4% 9.4% 100%+5 24,803.97 12,875.76 318.00 20,346.78 2,428.24 7,172.88 67,945.62 +5 36.5% 19.0% 0.5% 29.9% 3.6% 10.6% 100%+4 13,843.05 15,126.80 3,697.30 49,081.97 2,259.75 0.00 84,008.87 +4 16.5% 18.0% 4.4% 58.4% 2.7% 0.0% 100%+3 33,298.92 13,972.72 20,999.07 52,370.87 4,652.94 4,267.86 129,562.37 +3 25.7% 10.8% 16.2% 40.4% 3.6% 3.3% 100%8gr 25,122.93 32,434.71 22,735.59 63,227.91 2,645.69 7,575.56 153,742.39 8gr 16.3% 21.1% 14.8% 41.1% 1.7% 4.9% 100%6gr 12,175.69 45,075.11 11,420.04 29,036.13 5,569.35 4,066.81 107,343.11 6gr 11.3% 42.0% 10.6% 27.0% 5.2% 3.8% 100%5gr 6,808.53 9,843.22 8,400.47 13,249.82 2,015.09 2,909.13 43,226.26 5gr 15.8% 22.8% 19.4% 30.7% 4.7% 6.7% 100%4gr 15,493.09 17,440.03 18,826.27 25,397.21 2,961.32 4,787.74 84,905.66 4gr 18.2% 20.5% 22.2% 29.9% 3.5% 5.6% 100%3gr 14,534.70 13,569.06 17,556.28 21,002.27 2,497.63 2,639.56 71,799.49 3gr 20.2% 18.9% 24.5% 29.3% 3.5% 3.7% 100%+11 22,562.54 22,172.86 29,246.69 38,612.19 4,615.08 5,211.90 122,421.26 +11 18.4% 18.1% 23.9% 31.5% 3.8% 4.3% 100%+9 13,974.64 13,798.09 13,153.61 23,642.55 2,148.03 3,525.16 70,242.08 +9 19.9% 19.6% 18.7% 33.7% 3.1% 5.0% 100%+7 6,783.36 6,902.63 5,521.87 11,133.26 1,135.41 2,370.44 33,846.97 +7 20.0% 20.4% 16.3% 32.9% 3.4% 7.0% 100%+5 6,360.37 7,041.01 4,605.72 9,475.37 1,058.03 2,443.92 30,984.43 +5 20.5% 22.7% 14.9% 30.6% 3.4% 7.9% 100%+3 834.70 996.60 597.40 860.70 167.00 473.70 3,930.10 +3 21.2% 25.4% 15.2% 21.9% 4.2% 12.1% 100%-3 17.37 33.63 16.05 19.65 4.56 11.67 102.93 -3 16.9% 32.7% 15.6% 19.1% 4.4% 11.3% 100%

US$ $270,888.85 $271,122.46 $157,094.37 $436,646.93 $34,487.86 $55,102.82 $1,225,343.28

TABLE 5.39: Production January 2001

CARATS % CONTRIBUTIONMonth Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Total Month Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 TotalSize cts cts cts cts cts cts cts cts cts Size %cts %cts %cts %cts %cts %cts %cts %cts %ctsSpecial 46.35 77.03 64.54 43.49 28.42 11.01 270.84 Special 0.17% 0.26% 0.30% 0.21% 0.00% 0.45% 0.11% 0.00% 0.23%+10cts 20.65 31.78 40.42 20.83 20.02 133.70 +10cts 0.08% 0.11% 0.19% 0.10% 0.00% 0.00% 0.20% 0.00% 0.12%+9cts 64.60 45.31 56.59 9.51 9.33 28.01 9.65 223.00 +9cts 0.24% 0.15% 0.26% 0.04% 3.45% 0.44% 0.10% 0.00% 0.19%+8cts 40.66 57.78 50.09 16.50 8.25 24.96 198.24 +8cts 0.15% 0.19% 0.23% 0.08% 0.00% 0.13% 0.25% 0.00% 0.17%+7cts 130.98 115.47 94.24 81.33 21.33 443.35 +7cts 0.49% 0.38% 0.44% 0.38% 0.00% 0.00% 0.21% 0.00% 0.38%+6cts 161.83 149.99 125.24 135.50 18.90 37.39 628.85 +6cts 0.61% 0.50% 0.59% 0.64% 0.00% 0.30% 0.37% 0.00% 0.54%+5cts 248.34 178.45 194.33 174.43 15.96 91.83 903.34 +5cts 0.93% 0.59% 0.91% 0.82% 0.00% 0.25% 0.91% 0.00% 0.78%+4cts 452.05 348.80 429.95 197.36 78.03 125.81 4.12 1636.12 +4cts 1.69% 1.16% 2.01% 0.93% 0.00% 1.22% 1.25% 1.84% 1.41%+3cts 964.85 745.95 723.31 389.02 25.30 134.46 139.44 3.30 3125.63 +3cts 3.62% 2.48% 3.39% 1.84% 9.35% 2.11% 1.39% 1.47% 2.69%8gr 1814.62 1620.68 1378.79 914.65 17.10 226.61 432.41 1.88 6406.74 8gr 6.80% 5.39% 6.45% 4.32% 6.32% 3.56% 4.30% 0.84% 5.51%6gr 1217.56 1292.74 925.59 689.94 5.04 198.01 395.81 4.29 4728.98 6gr 4.56% 4.30% 4.33% 3.26% 1.86% 3.11% 3.93% 1.91% 4.07%5gr 802.02 916.32 573.50 465.51 11.95 135.60 272.18 2.51 3179.59 5gr 3.01% 3.05% 2.68% 2.20% 4.42% 2.13% 2.70% 1.12% 2.74%4gr 1532.55 1862.69 1145.92 1006.81 9.95 258.23 558.60 4.03 6378.78 4gr 5.74% 6.20% 5.36% 4.76% 3.68% 4.05% 5.55% 1.80% 5.49%3gr 1833.21 2027.17 1347.07 1143.23 14.19 332.14 659.29 5.46 7361.76 3gr 6.87% 6.74% 6.30% 5.40% 5.25% 5.21% 6.55% 2.43% 6.34%+11 6323.92 7070.08 4339.27 4122.37 65.23 1157.36 2175.48 37.76 25291.47 +11 23.70% 23.52% 20.31% 19.49% 24.11% 18.17% 21.61% 16.82% 21.77%+9 5200.76 6170.93 3779.05 3692.59 42.28 1156.92 1718.50 35.94 21796.97 +9 19.49% 20.53% 17.69% 17.46% 15.63% 18.16% 17.07% 16.01% 18.76%+7 3147.52 3693.38 2444.91 2584.75 25.97 789.93 1201.85 30.68 13918.99 +7 11.80% 12.29% 11.44% 12.22% 9.60% 12.40% 11.94% 13.67% 11.98%+5 2558.95 3339.78 2961.59 3978.02 35.02 1320.96 1722.47 68.77 15985.56 +5 9.59% 11.11% 13.86% 18.80% 12.94% 20.74% 17.11% 30.63% 13.76%+3 113.57 294.56 615.07 1305.95 8.29 428.04 417.42 23.62 3206.52 +3 0.43% 0.98% 2.88% 6.17% 3.06% 6.72% 4.15% 10.52% 2.76%‐3 6.12 20.17 78.11 182.46 0.88 54.79 31.42 2.14 376.09 ‐3 0.02% 0.07% 0.37% 0.86% 0.33% 0.86% 0.31% 0.95% 0.32%

Total 26681.11 30059.06 21367.58 21154.25 270.53 6370.62 10066.87 224.50 116194.52 Total 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%

VALUE % CONTRIBUTION VALUESize US$ US$ US$ US$ US$ US$ US$ US$ US$ Size %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$Special 76,558$ 45,780$ 59,775$ 113,435$ ‐$ 42,716$ 7,927$ ‐$ 346,192$ Special 2.57% 1.69% 2.56% 6.05% 0.00% 8.94% 1.00% 0.00% 3.08%+10cts 11,094$ 40,283$ 55,122$ 25,682$ ‐$ ‐$ 1,803$ ‐$ 133,984$ +10cts 0.37% 1.48% 2.36% 1.37% 0.00% 0.00% 0.23% 0.00% 1.19%+9cts 53,097$ 18,547$ 96,844$ 9,986$ 27,234$ 17,196$ 290$ ‐$ 223,193$ +9cts 1.78% 0.68% 4.15% 0.53% 44.65% 3.60% 0.04% 0.00% 1.98%+8cts 21,087$ 43,131$ 36,450$ 20,822$ ‐$ 10,733$ 18,276$ ‐$ 150,500$ +8cts 0.71% 1.59% 1.56% 1.11% 0.00% 2.25% 2.31% 0.00% 1.34%+7cts 83,316$ 55,718$ 88,894$ 77,249$ ‐$ ‐$ 18,913$ ‐$ 324,089$ +7cts 2.79% 2.05% 3.81% 4.12% 0.00% 0.00% 2.39% 0.00% 2.88%+6cts 86,280$ 91,081$ 91,495$ 105,737$ ‐$ 2,551$ 23,144$ ‐$ 400,287$ +6cts 2.89% 3.36% 3.92% 5.64% 0.00% 0.53% 2.93% 0.00% 3.56%+5cts 174,229$ 69,809$ 84,886$ 89,308$ ‐$ 2,794$ 48,251$ ‐$ 469,276$ +5cts 5.84% 2.57% 3.63% 4.76% 0.00% 0.58% 6.10% 0.00% 4.17%+4cts 171,150$ 141,223$ 168,974$ 85,196$ ‐$ 28,018$ 43,052$ 247$ 637,860$ +4cts 5.73% 5.20% 7.23% 4.54% 0.00% 5.86% 5.44% 2.67% 5.67%+3cts 363,066$ 255,772$ 265,254$ 143,668$ 19,957$ 49,985$ 56,002$ 1,403$ 1,155,106$ +3cts 12.16% 9.42% 11.36% 7.66% 32.72% 10.46% 7.08% 15.13% 10.27%8gr 507,203$ 387,321$ 356,576$ 242,878$ 4,523$ 59,025$ 101,994$ 1,880$ 1,661,399$ 8gr 16.99% 14.27% 15.27% 12.94% 7.41% 12.36% 12.89% 20.28% 14.77%6gr 217,619$ 225,517$ 157,526$ 108,683$ 799$ 33,553$ 61,446$ 129$ 805,272$ 6gr 7.29% 8.31% 6.74% 5.79% 1.31% 7.02% 7.77% 1.39% 7.16%5gr 128,463$ 122,683$ 82,385$ 70,315$ 667$ 19,589$ 41,426$ 194$ 465,723$ 5gr 4.30% 4.52% 3.53% 3.75% 1.09% 4.10% 5.24% 2.09% 4.14%4gr 192,669$ 234,065$ 129,871$ 128,614$ 526$ 34,041$ 66,816$ 405$ 787,007$ 4gr 6.46% 8.62% 5.56% 6.85% 0.86% 7.13% 8.45% 4.37% 7.00%3gr 174,075$ 171,443$ 109,340$ 101,412$ 1,194$ 30,377$ 61,256$ 285$ 649,382$ 3gr 5.83% 6.32% 4.68% 5.41% 1.96% 6.36% 7.74% 3.08% 5.77%+11 349,228$ 372,621$ 237,133$ 204,411$ 2,967$ 53,395$ 99,290$ 1,777$ 1,320,822$ +11 11.70% 13.73% 10.15% 10.89% 4.86% 11.18% 12.55% 19.16% 11.74%+9 211,733$ 263,873$ 165,056$ 151,617$ 1,603$ 43,776$ 66,462$ 1,023$ 905,144$ +9 7.09% 9.72% 7.07% 8.08% 2.63% 9.16% 8.40% 11.04% 8.05%+7 105,251$ 101,460$ 79,759$ 82,331$ 791$ 21,554$ 39,104$ 710$ 430,961$ +7 3.53% 3.74% 3.41% 4.39% 1.30% 4.51% 4.94% 7.66% 3.83%+5 57,370$ 71,145$ 64,105$ 101,304$ 649$ 23,981$ 31,246$ 975$ 350,776$ +5 1.92% 2.62% 2.74% 5.40% 1.06% 5.02% 3.95% 10.52% 3.12%+3 1,136$ 2,946$ 6,151$ 13,060$ 83$ 4,280$ 4,174$ 236$ 32,065$ +3 0.04% 0.11% 0.26% 0.70% 0.14% 0.90% 0.53% 2.55% 0.29%‐3 10$ 34$ 130$ 547$ 3$ 164$ 94$ 6$ 989$ ‐3 0.00% 0.00% 0.01% 0.03% 0.00% 0.03% 0.01% 0.07% 0.01%Total 2,984,634$ 2,714,453$ 2,335,727$ 1,876,254$ 60,996$ 477,726$ 790,966$ 9,271$ 11,250,028$ Total 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%

PRICE PER CARATMonth Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 TotalSize US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 1,651.74$ 594.31$ 926.17$ 2,608.31$ 1,503.02$ 720.00$ 1,278.21$ +10cts 537.24$ 1,267.56$ 1,363.72$ 1,232.93$ 90.06$ 1,002.12$ +9cts 821.94$ 409.34$ 1,711.33$ 1,050.00$ 2,919.00$ 613.91$ 30.00$ 1,000.87$ +8cts 518.61$ 746.48$ 727.70$ 1,261.96$ 1,301.00$ 732.22$ 759.18$ +7cts 636.10$ 482.53$ 943.27$ 949.82$ 886.70$ 731.00$ +6cts 533.15$ 607.25$ 730.56$ 780.34$ 134.95$ 618.98$ 636.54$ +5cts 701.57$ 391.20$ 436.82$ 512.00$ 175.04$ 525.43$ 519.49$ +4cts 378.61$ 404.88$ 393.01$ 431.68$ 359.06$ 342.20$ 60.00$ 389.86$ +3cts 376.29$ 342.88$ 366.72$ 369.31$ 788.80$ 371.74$ 401.62$ 425.00$ 369.56$ 8gr 279.51$ 238.99$ 258.61$ 265.54$ 264.49$ 260.47$ 235.87$ 1,000.00$ 259.32$ 6gr 178.73$ 174.45$ 170.19$ 157.53$ 158.62$ 169.45$ 155.24$ 29.99$ 170.28$ 5gr 160.17$ 133.89$ 143.65$ 151.05$ 55.81$ 144.46$ 152.20$ 77.35$ 146.47$ 4gr 125.72$ 125.66$ 113.33$ 127.74$ 52.84$ 131.82$ 119.61$ 100.55$ 123.38$ 3gr 94.96$ 84.57$ 81.17$ 88.71$ 84.14$ 91.46$ 92.91$ 52.25$ 88.21$ +11 55.22$ 52.70$ 54.65$ 49.59$ 45.49$ 46.13$ 45.64$ 47.06$ 52.22$ +9 40.71$ 42.76$ 43.68$ 41.06$ 37.91$ 37.84$ 38.67$ 28.48$ 41.53$ +7 33.44$ 27.47$ 32.62$ 31.85$ 30.48$ 27.29$ 32.54$ 23.15$ 30.96$ +5 22.42$ 21.30$ 21.65$ 25.47$ 18.54$ 18.15$ 18.14$ 14.18$ 21.94$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ ‐3 1.67$ 1.67$ 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 2.63$ Av PPC 111.86$ 90.30$ 109.31$ 88.69$ 225.47$ 74.99$ 78.57$ 41.30$ 96.82$

TABLE 5.40: EXCALIBUR Production and Valuation

CARATS % CONTRIBUTIONMonth Oct-99 Nov-99 Feb-00 Jun-00 Sep00-Jan01 Feb-01 May-01 Oct-01 Dec-01 Jan-02 Total Month Oct-99 Nov-99 Feb-00 Jun-00 Sep00-Jan01 Feb-01 May-01 Oct-01 Dec-01Size cts cts cts cts cts cts cts cts cts cts cts Weight %cts %cts %cts %cts %cts %cts %cts %cts %ctsSpecial 70.93 50.89 62.33 12.97 487.34 97.73 133.24 256.37 0.00 0.00 1171.80 Special 0.03 0.01 0.02 0.05 0.01 0.01 0.02 0.03 0.00+10cts 9.97 0.00 10.61 21.55 61.05 0.00 9.84 30.43 0.00 20.78 164.23 +10cts 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00+9cts 9.69 9.70 0.00 0.00 92.95 37.44 9.11 46.40 0.00 0.00 205.29 +9cts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00+8cts 24.05 16.50 8.09 0.00 122.96 81.66 8.71 32.59 0.00 0.00 294.56 +8cts 0.01 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00+7cts 15.36 6.97 22.46 0.00 122.99 58.86 28.51 21.52 0.00 14.10 290.77 +7cts 0.01 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00+6cts 5.85 30.40 24.39 0.00 150.00 67.79 6.64 56.35 0.00 19.22 360.64 +6cts 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.01 0.00+5cts 16.50 91.34 57.25 0.00 332.94 145.71 86.07 68.94 0.00 32.22 830.97 +5cts 0.01 0.01 0.02 0.00 0.01 0.01 0.01 0.01 0.00+4cts 25.25 118.12 58.29 16.16 449.11 222.51 66.31 118.00 8.40 33.89 1116.04 +4cts 0.01 0.01 0.02 0.06 0.01 0.01 0.01 0.01 0.08+3cts 62.51 280.46 100.18 9.52 822.46 351.84 176.38 228.39 3.43 62.42 2097.59 +3cts 0.03 0.03 0.03 0.04 0.02 0.02 0.03 0.02 0.038gr 111.78 494.97 211.66 33.40 1811.32 772.12 358.63 519.04 2.13 159.40 4474.45 8gr 0.05 0.06 0.06 0.12 0.05 0.05 0.05 0.05 0.026gr 97.51 380.67 160.07 6.33 1269.16 531.71 263.84 359.55 4.58 109.48 3182.90 6gr 0.04 0.05 0.05 0.02 0.04 0.03 0.04 0.04 0.045gr 70.82 289.09 115.78 7.80 936.44 411.25 202.68 244.72 1.32 76.47 2356.37 5gr 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.014gr 166.68 516.11 220.25 12.58 1859.95 822.45 379.11 490.60 4.08 163.71 4635.52 4gr 0.07 0.06 0.06 0.05 0.05 0.05 0.05 0.05 0.043gr 142.26 644.87 252.82 16.89 2182.26 974.55 460.27 556.35 2.29 188.80 5421.36 3gr 0.06 0.08 0.07 0.06 0.06 0.06 0.07 0.06 0.02+11 495.87 2037.99 831.23 67.99 7393.50 3334.45 1479.21 1985.56 23.55 570.73 18220.08 +11 0.22 0.24 0.24 0.25 0.21 0.21 0.21 0.20 0.23+9 416.03 1560.36 645.71 35.92 5884.12 2662.10 1178.28 1566.89 17.22 459.63 14426.26 +9 0.19 0.19 0.19 0.13 0.17 0.17 0.17 0.16 0.17+7 247.75 974.63 360.20 15.71 3907.49 1743.86 787.15 1047.96 10.28 318.24 9413.27 +7 0.11 0.12 0.11 0.06 0.11 0.11 0.11 0.11 0.10+5 240.48 856.01 274.75 14.09 6018.68 2706.12 1112.85 1714.45 18.04 467.22 13422.69 +5 0.11 0.10 0.08 0.05 0.17 0.17 0.16 0.17 0.17+3 12.48 55.17 12.38 0.00 1454.63 735.07 213.42 399.72 6.76 99.66 2989.29 +3 0.01 0.01 0.00 0.00 0.04 0.05 0.03 0.04 0.07‐3 0.36 2.26 0.50 0.00 164.70 81.54 13.09 57.25 1.61 11.21 332.52 ‐3 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.01 0.02

Total 2242.13 8416.51 3428.95 270.91 35524.05 15838.76 6973.34 9801.08 103.69 2807.18 85406.60 Total 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00

VALUE % CONTRIBUTION VALUESize US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ Size %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$Special 95,245$ 51,989$ 63,601$ 65$ 879,265$ 147,127$ 163,404$ 568,734$ ‐$ ‐$ 1,969,429$ Special 29.4% 6.7% 15.6% 0.2% 23.7% 11.0% 22.1% 41.8% 0.0%+10cts 23$ ‐$ 13,040$ 16,083$ 80,859$ ‐$ 11,808$ 32,158$ ‐$ 36,893$ 190,865$ +10cts 0.01% 0.0% 3.2% 41.8% 2.2% 0.0% 1.6% 2.4% 0.0%+9cts 4,694$ 13,182$ ‐$ ‐$ 67,799$ 48,146$ 13,665$ 5,988$ ‐$ ‐$ 153,474$ +9cts 1.4% 1.7% 0.0% 0.0% 1.8% 3.6% 1.9% 0.4% 0.0%+8cts 2,076$ 4,447$ 800$ ‐$ 79,487$ 39,817$ 10,452$ 29,219$ ‐$ ‐$ 166,298$ +8cts 0.6% 0.6% 0.2% 0.0% 2.1% 3.0% 1.4% 2.1% 0.0%+7cts 41,362$ 105$ 21,946$ ‐$ 78,624$ 41,179$ 4,098$ 17,555$ ‐$ 15,793$ 220,660$ +7cts 12.8% 0.0% 5.4% 0.0% 2.1% 3.1% 0.6% 1.3% 0.0%+6cts 14$ 24,655$ 43,290$ ‐$ 70,291$ 20,942$ 332$ 41,862$ ‐$ 7,155$ 208,540$ +6cts 0.0% 3.2% 10.6% 0.0% 1.9% 1.6% 0.0% 3.1% 0.0%+5cts 12,668$ 31,451$ 21,028$ ‐$ 182,351$ 77,894$ 43,524$ 48,057$ ‐$ 12,876$ 429,849$ +5cts 3.9% 4.1% 5.2% 0.0% 4.9% 5.8% 5.9% 3.5% 0.0%+4cts 24,723$ 43,762$ 20,156$ 6,602$ 220,289$ 116,797$ 38,865$ 47,538$ 1,962$ 15,127$ 535,821$ +4cts 7.6% 5.7% 4.9% 17.2% 5.9% 8.8% 5.3% 3.5% 27.8%+3cts 19,686$ 102,082$ 41,732$ 1,756$ 246,839$ 110,517$ 55,899$ 66,077$ 373$ 13,973$ 658,933$ +3cts 6.1% 13.2% 10.2% 4.6% 6.7% 8.3% 7.6% 4.9% 5.3%8gr 32,547$ 126,910$ 37,409$ 4,589$ 389,454$ 145,695$ 89,657$ 121,613$ 53$ 32,435$ 980,363$ 8gr 10.0% 16.5% 9.2% 11.9% 10.5% 10.9% 12.2% 8.9% 0.8%6gr 12,011$ 52,996$ 14,369$ 330$ 231,238$ 84,184$ 45,184$ 55,440$ 1,354$ 45,075$ 542,183$ 6gr 3.7% 6.9% 3.5% 0.9% 6.2% 6.3% 6.1% 4.1% 19.2%5gr 8,088$ 31,448$ 15,288$ 1,011$ 113,282$ 41,947$ 28,742$ 32,355$ 396$ 9,843$ 282,399$ 5gr 2.5% 4.1% 3.7% 2.6% 3.1% 3.1% 3.9% 2.4% 5.6%4gr 18,385$ 44,155$ 20,805$ 1,316$ 184,518$ 75,713$ 43,549$ 47,196$ 620$ 17,440$ 453,696$ 4gr 5.7% 5.7% 5.1% 3.4% 5.0% 5.7% 5.9% 3.5% 8.8%3gr 8,994$ 48,401$ 18,454$ 1,426$ 155,350$ 63,990$ 35,161$ 42,442$ 188$ 13,569$ 387,975$ 3gr 2.8% 6.3% 4.5% 3.7% 4.2% 4.8% 4.8% 3.1% 2.7%+11 21,410$ 96,403$ 38,967$ 3,272$ 335,107$ 145,406$ 71,834$ 94,685$ 1,010$ 22,173$ 830,265$ +11 6.6% 12.5% 9.6% 8.5% 9.0% 10.9% 9.7% 7.0% 14.3%+9 12,079$ 55,637$ 22,092$ 1,224$ 194,445$ 81,286$ 44,040$ 54,778$ 543$ 13,798$ 479,922$ +9 3.7% 7.2% 5.4% 3.2% 5.2% 6.1% 6.0% 4.0% 7.7%+7 6,066$ 26,606$ 9,803$ 487$ 95,960$ 44,176$ 20,221$ 24,412$ 249$ 6,903$ 234,882$ +7 1.9% 3.5% 2.4% 1.3% 2.6% 3.3% 2.7% 1.8% 3.5%+5 3,804$ 16,408$ 5,011$ 277$ 88,157$ 39,765$ 15,259$ 25,855$ 236$ 7,041$ 201,813$ +5 1.2% 2.1% 1.2% 0.7% 2.4% 3.0% 2.1% 1.9% 3.3%+3 125$ 552$ 124$ ‐$ 14,546$ 7,351$ 2,134$ 3,997$ 68$ 997$ 29,893$ +3 0.04% 0.07% 0.03% 0.00% 0.39% 0.55% 0.29% 0.29% 0.96%‐3 1$ 4$ 1$ ‐$ 494$ 245$ 39$ 172$ 5$ 34$ 993$ ‐3 0.00% 0.00% 0.00% 0.00% 0.01% 0.02% 0.01% 0.01% 0.07%Total 324,000$ 771,192$ 407,914$ 38,438$ 3,708,355$ 1,332,174$ 737,867$ 1,360,133$ 7,057$ 271,122$ 8,958,254$ Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

PRICE PER CARATMonth Oct-99 Nov-99 Feb-00 Jun-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02 Total

Size US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct

Special 1,342.80$ 1,021.60$ 1,020.39$ 5.00$ 1,804.21$ 1,505.44$ 1,226.39$ 2,218.41$ 1,680.69$ +10cts 2.33$ 1,229.00$ 746.31$ 1,324.48$ 1,200.00$ 1,056.80$ 1,775.41$ 1,162.18$ +9cts 484.44$ 1,359.00$ +8cts 86.33$ 269.50$ 98.89$ 646.45$ 487.59$ 1,200.00$ 896.56$ 564.56$ +7cts 2,692.84$ 15.00$ 977.10$ 639.27$ 699.61$ 143.74$ 815.73$ 1,120.04$ 758.88$ +6cts 2.33$ 811.01$ 1,774.92$ 468.60$ 308.93$ 50.00$ 742.89$ 372.26$ 578.25$ +5cts 767.78$ 344.33$ 367.30$ 547.70$ 534.58$ 505.68$ 697.09$ 399.62$ 517.29$ +4cts 979.13$ 370.49$ 345.79$ 408.53$ 490.50$ 524.91$ 586.11$ 402.87$ 233.57$ 446.35$ 480.11$ +3cts 314.92$ 363.98$ 416.57$ 184.46$ 300.12$ 314.11$ 316.93$ 289.32$ 108.74$ 223.85$ 314.14$ 8gr 291.17$ 256.40$ 176.74$ 137.41$ 215.01$ 188.70$ 250.00$ 234.30$ 25.00$ 203.48$ 219.10$ 6gr 123.18$ 139.22$ 89.77$ 52.17$ 182.20$ 158.33$ 171.26$ 154.19$ 295.74$ 411.72$ 170.34$ 5gr 114.20$ 108.78$ 132.04$ 129.62$ 120.97$ 102.00$ 141.81$ 132.21$ 300.00$ 128.72$ 119.84$ 4gr 110.30$ 85.55$ 94.46$ 104.60$ 99.21$ 92.06$ 114.87$ 96.20$ 152.08$ 106.53$ 97.87$ 3gr 63.23$ 75.06$ 72.99$ 84.45$ 71.19$ 65.66$ 76.39$ 76.29$ 81.94$ 71.87$ 71.56$ +11 43.18$ 47.30$ 46.88$ 48.13$ 45.32$ 43.61$ 48.56$ 47.69$ 42.88$ 38.85$ 45.57$ +9 29.03$ 35.66$ 34.21$ 34.08$ 33.05$ 30.53$ 37.38$ 34.96$ 31.56$ 30.02$ 33.27$ +7 24.49$ 27.30$ 27.21$ 30.98$ 24.56$ 25.33$ 25.69$ 23.29$ 24.18$ 21.69$ 24.95$ +5 15.82$ 19.17$ 18.24$ 19.64$ 14.65$ 14.69$ 13.71$ 15.08$ 13.08$ 15.07$ 15.04$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ ‐3 1.67$ 1.67$ 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 2.99$ Av PPC 144.51$ 91.63$ 118.96$ 141.89$ 104.39$ 84.11$ 105.81$ 138.77$ 68.06$ 96.58$ 104.89$

TABLE 5.41: PALOMIDES Production and Valuation

CARATS % CONTRIBUTIONMonth Sep-99 Oct-99 Nov-99 Feb-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02 Total Month Sep-99 Oct-99 Nov-99 Feb-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02 TotalSize cts cts cts cts cts cts cts cts cts cts cts cts cts Weight %cts %cts %cts %cts %cts %cts %cts %cts %cts %cts %cts %cts %ctsSpecial 45.76 43.70 54.30 71.59 13.91 11.57 60.77 27.12 52.70 12.84 35.81 19.00 449 Special 1.1% 1.2% 1.5% 2.7% 1.7% 0.1% 1.1% 0.7% 0.7% 0.8% 0.8% 0.7% 0.9%+10cts 21.05 0.00 0.00 20.95 10.42 9.91 20.83 9.89 20.60 0.00 0.00 0.00 114 +10cts 0.5% 0.0% 0.0% 0.8% 1.3% 0.1% 0.4% 0.2% 0.3% 0.0% 0.0% 0.0% 0.2%+9cts 18.63 9.43 18.47 9.23 0.00 27.66 9.09 17.79 9.36 0.00 36.37 9.49 166 +9cts 0.5% 0.3% 0.5% 0.3% 0.0% 0.3% 0.2% 0.4% 0.1% 0.0% 0.8% 0.4% 0.3%+8cts 25.12 24.86 16.59 16.48 8.42 33.50 16.49 7.84 8.77 16.44 0.00 0.00 175 +8cts 0.6% 0.7% 0.5% 0.6% 1.0% 0.4% 0.3% 0.2% 0.1% 1.0% 0.0% 0.0% 0.4%+7cts 14.27 43.02 29.13 0.00 21.47 44.54 14.20 14.65 80.76 21.94 0.00 7.48 291 +7cts 0.3% 1.2% 0.8% 0.0% 2.6% 0.5% 0.3% 0.4% 1.1% 1.4% 0.0% 0.3% 0.6%+6cts 18.47 30.59 50.21 5.98 6.11 31.89 25.54 24.29 49.52 5.93 32.34 49.42 330 +6cts 0.4% 0.9% 1.4% 0.2% 0.7% 0.4% 0.5% 0.6% 0.7% 0.4% 0.7% 1.9% 0.7%+5cts 48.23 10.50 61.98 41.80 41.37 84.52 31.69 47.90 111.07 20.44 46.63 32.09 578 +5cts 1.2% 0.3% 1.7% 1.6% 5.0% 1.0% 0.6% 1.2% 1.5% 1.3% 1.1% 1.2% 1.2%+4cts 59.87 62.33 53.84 44.70 41.73 109.78 59.25 47.17 134.07 35.29 55.45 33.89 737 +4cts 1.4% 1.7% 1.5% 1.7% 5.0% 1.3% 1.1% 1.2% 1.8% 2.2% 1.3% 1.3% 1.5%+3cts 151.87 95.30 111.72 99.32 79.55 206.01 116.69 113.71 223.72 48.92 104.12 98.57 1,450 +3cts 3.7% 2.7% 3.1% 3.7% 9.6% 2.5% 2.1% 2.9% 3.0% 3.0% 2.4% 3.7% 3.0%8gr 263.50 202.86 237.63 165.47 38.22 373.99 226.05 216.04 428.84 104.57 250.66 133.01 2,641 8gr 6.4% 5.6% 6.6% 6.2% 4.6% 4.6% 4.1% 5.4% 5.8% 6.5% 5.8% 5.0% 5.4%6gr 172.40 173.58 175.27 102.44 40.58 299.60 149.84 135.81 293.61 58.43 145.18 88.30 1,835 6gr 4.2% 4.8% 4.9% 3.9% 4.9% 3.7% 2.7% 3.4% 3.9% 3.6% 3.4% 3.3% 3.8%5gr 130.52 111.27 122.90 98.93 24.52 173.00 112.68 86.64 226.26 36.91 101.10 68.78 1,294 5gr 3.2% 3.1% 3.4% 3.7% 3.0% 2.1% 2.0% 2.2% 3.0% 2.3% 2.3% 2.6% 2.7%4gr 266.27 240.19 221.37 197.41 39.17 426.77 256.74 162.77 388.46 75.72 226.14 138.06 2,639 4gr 6.4% 6.7% 6.1% 7.4% 4.7% 5.2% 4.7% 4.1% 5.2% 4.7% 5.2% 5.2% 5.4%3gr 297.73 285.21 293.00 216.26 45.27 509.26 343.36 217.16 498.43 87.99 282.21 183.38 3,259 3gr 7.2% 7.9% 8.1% 8.1% 5.4% 6.2% 6.2% 5.5% 6.7% 5.5% 6.5% 6.9% 6.7%+11 960.18 911.71 834.33 650.83 117.28 1678.91 1021.61 795.65 1585.75 318.48 977.74 535.80 10,388 +11 23.2% 25.4% 23.1% 24.5% 14.1% 20.5% 18.5% 20.0% 21.3% 19.8% 22.6% 20.2% 21.4%+9 731.86 669.09 628.07 463.63 97.26 1385.40 917.06 659.05 1239.82 267.29 710.08 448.48 8,217 +9 17.7% 18.6% 17.4% 17.4% 11.7% 16.9% 16.6% 16.6% 16.6% 16.6% 16.4% 16.9% 16.9%+7 444.88 373.71 389.31 277.66 68.51 942.32 628.09 468.37 806.09 171.16 468.95 299.09 5,338 +7 10.8% 10.4% 10.8% 10.4% 8.2% 11.5% 11.4% 11.8% 10.8% 10.6% 10.8% 11.3% 11.0%+5 438.93 298.15 298.69 173.78 99.34 1426.43 1121.07 721.09 1102.46 264.99 706.48 416.80 7,068 +5 10.6% 8.3% 8.3% 6.5% 12.0% 17.4% 20.3% 18.2% 14.8% 16.5% 16.3% 15.7% 14.6%+3 24.93 5.14 8.12 3.30 32.95 373.13 346.52 185.27 186.83 56.95 142.33 83.47 1,449 +3 0.6% 0.1% 0.2% 0.1% 4.0% 4.6% 6.3% 4.7% 2.5% 3.5% 3.3% 3.1% 3.0%‐3 0.70 0.10 0.15 0.34 4.91 36.66 43.12 14.62 9.37 3.96 9.91 5.79 130 ‐3 0.017% 0.003% 0.004% 0.013% 0.6% 0.4% 0.8% 0.4% 0.1% 0.2% 0.2% 0.2% 0.3%Total 4135.17 3590.74 3605.08 2660.10 830.99 8184.85 5520.69 3972.83 7456.49 1608.25 4331.50 2650.90 48,548 Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUESize US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ Size US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$Special 78,582$ 70,206$ 52,502$ 25,706$ 18,347$ 21,844$ 66,114$ 45,500$ 128,032$ 128$ 39,974$ 7,600$ 554,535$ Special 12.2% 13.7% 8.7% 7.8% 9.6% 2.6% 11.4% 11.1% 13.7% 0.1% 9.0% 2.8% 9.3%+10cts 20,638$ ‐$ ‐$ 4,358$ 19,788$ 22,538$ 13,998$ 2,176$ 27,900$ ‐$ ‐$ ‐$ 111,395$ +10cts 3.2% 0.0% 0.0% 1.3% 10.4% 2.7% 2.4% 0.5% 3.0% 0.0% 0.0% 0.0% 1.9%+9cts 14,792$ 131$ 25,884$ 5,200$ ‐$ 32,884$ 23,516$ 17,561$ 8,424$ ‐$ 24,600$ 949$ 153,940$ +9cts 2.3% 0.0% 4.3% 1.6% 0.0% 4.0% 4.1% 4.3% 0.9% 0.0% 5.6% 0.4% 2.6%+8cts 55,014$ 22,781$ 27,222$ 931$ 6,315$ 10,555$ 19,957$ 8,624$ 12,278$ 9,259$ ‐$ ‐$ 172,937$ +8cts 8.5% 4.4% 4.5% 0.3% 3.3% 1.3% 3.5% 2.1% 1.3% 5.2% 0.0% 0.0% 2.9%+7cts 7,412$ 60,158$ 20,948$ ‐$ 12,367$ 68,654$ 3,527$ 16,447$ 59,867$ 11,446$ ‐$ 11,220$ 272,046$ +7cts 1.1% 11.7% 3.5% 0.0% 6.5% 8.3% 0.6% 4.0% 6.4% 6.4% 0.0% 4.1% 4.6%+6cts 42,198$ 22,909$ 66,875$ 2,000$ 764$ 23,033$ 23,176$ 6,954$ 20,352$ 8,895$ 29,802$ 54,506$ 301,463$ +6cts 6.5% 4.5% 11.1% 0.6% 0.4% 2.8% 4.0% 1.7% 2.2% 5.0% 6.7% 20.1% 5.1%+5cts 39,548$ 7,832$ 69,382$ 25,569$ 44,280$ 44,678$ 25,498$ 23,646$ 48,175$ 17,176$ 43,421$ 24,804$ 414,010$ +5cts 6.1% 1.5% 11.5% 7.7% 23.2% 5.4% 4.4% 5.8% 5.2% 9.6% 9.8% 9.2% 7.0%+4cts 14,464$ 24,752$ 22,517$ 16,637$ 19,763$ 34,976$ 31,282$ 32,701$ 80,815$ 19,325$ 23,248$ 13,843$ 334,324$ +4cts 2.2% 4.8% 3.7% 5.0% 10.4% 4.2% 5.4% 8.0% 8.6% 10.8% 5.2% 5.1% 5.6%+3cts 72,410$ 44,399$ 48,637$ 47,062$ 24,720$ 68,934$ 59,262$ 42,140$ 90,690$ 24,201$ 39,127$ 33,299$ 594,882$ +3cts 11.2% 8.7% 8.0% 14.2% 12.9% 8.3% 10.2% 10.3% 9.7% 13.5% 8.8% 12.3% 10.0%8gr 83,637$ 58,303$ 75,552$ 50,488$ 8,965$ 95,152$ 59,910$ 47,918$ 109,262$ 21,623$ 57,228$ 25,123$ 693,160$ 8gr 12.9% 11.4% 12.5% 15.3% 4.7% 11.4% 10.4% 11.7% 11.7% 12.1% 12.9% 9.3% 11.7%6gr 32,195$ 28,417$ 32,671$ 16,257$ 7,697$ 59,589$ 26,628$ 24,486$ 55,652$ 8,840$ 29,302$ 12,176$ 333,910$ 6gr 5.0% 5.5% 5.4% 4.9% 4.0% 7.2% 4.6% 6.0% 6.0% 4.9% 6.6% 4.5% 5.6%5gr 16,253$ 16,513$ 16,833$ 17,358$ 5,458$ 25,718$ 20,744$ 11,335$ 33,542$ 3,197$ 14,947$ 6,809$ 188,705$ 5gr 2.5% 3.2% 2.8% 5.2% 2.9% 3.1% 3.6% 2.8% 3.6% 1.8% 3.4% 2.5% 3.2%4gr 33,722$ 33,792$ 25,963$ 26,377$ 4,935$ 60,523$ 38,947$ 19,284$ 44,934$ 9,453$ 25,547$ 15,493$ 338,970$ 4gr 5.2% 6.6% 4.3% 8.0% 2.6% 7.3% 6.7% 4.7% 4.8% 5.3% 5.8% 5.7% 5.7%3gr 26,990$ 26,090$ 26,087$ 21,885$ 3,973$ 47,544$ 35,030$ 19,859$ 41,756$ 8,655$ 22,817$ 14,535$ 295,220$ 3gr 4.2% 5.1% 4.3% 6.6% 2.1% 5.7% 6.1% 4.9% 4.5% 4.8% 5.2% 5.4% 5.0%+11 54,993$ 52,953$ 46,386$ 36,991$ 6,007$ 93,906$ 50,879$ 37,744$ 84,993$ 16,635$ 45,035$ 22,563$ 549,085$ +11 8.5% 10.3% 7.7% 11.2% 3.1% 11.3% 8.8% 9.2% 9.1% 9.3% 10.2% 8.3% 9.3%+9 26,888$ 23,037$ 26,857$ 19,602$ 3,467$ 59,500$ 36,706$ 24,313$ 45,222$ 9,751$ 23,142$ 13,975$ 312,458$ +9 4.2% 4.5% 4.4% 5.9% 1.8% 7.2% 6.3% 6.0% 4.8% 5.4% 5.2% 5.2% 5.3%+7 16,227$ 12,522$ 13,305$ 10,282$ 2,034$ 31,639$ 20,121$ 13,584$ 22,212$ 4,797$ 11,841$ 6,783$ 165,348$ +7 2.5% 2.4% 2.2% 3.1% 1.1% 3.8% 3.5% 3.3% 2.4% 2.7% 2.7% 2.5% 2.8%+5 9,842$ 7,394$ 6,935$ 4,302$ 1,699$ 26,496$ 19,532$ 12,430$ 19,029$ 5,029$ 11,558$ 6,360$ 130,604$ +5 1.5% 1.4% 1.1% 1.3% 0.9% 3.2% 3.4% 3.0% 2.0% 2.8% 2.6% 2.3% 2.2%+3 249$ 51$ 81$ 33$ 330$ 3,731$ 3,465$ 1,853$ 1,868$ 570$ 1,423$ 835$ 14,489$ +3 0.04% 0.01% 0.01% 0.01% 0.17% 0.45% 0.60% 0.45% 0.20% 0.32% 0.32% 0.31% 0.24%‐3 1$ 0$ 0$ 1$ 15$ 110$ 129$ 44$ 28$ 12$ 30$ 17$ 387$ ‐3 0.00% 0.00% 0.00% 0.00% 0.01% 0.01% 0.02% 0.01% 0.00% 0.01% 0.01% 0.01% 0.01%

646,055$ 512,240$ 604,637$ 331,037$ 190,924$ 832,004$ 578,421$ 408,598$ 935,031$ 178,990$ 443,041$ 270,889$ 5,931,868$ 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

PRICE PER CARATMonth Sep-99 Oct-99 Nov-99 Feb-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02 TotalSize US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 1,717.27$ 1,606.54$ 966.88$ 359.07$ 1,319.00$ 1,887.99$ 1,087.93$ 1,677.73$ 2,429.45$ 10.00$ 1,116.28$ 400.00$ 1,234.85$ +10cts 980.41$ 208.02$ 1,899.00$ 2,274.27$ 672.00$ 220.00$ 1,354.37$ 980.16$ +9cts 793.97$ 13.89$ 1,401.41$ 563.38$ 1,188.86$ 2,587.00$ 987.10$ 900.00$ 676.39$ 100.00$ 930.04$ +8cts 2,190.06$ 916.38$ 1,640.86$ 56.49$ 750.00$ 315.07$ 1,210.27$ 1,100.00$ 1,400.00$ 563.20$ 990.99$ +7cts 519.43$ 1,398.37$ 719.12$ ‐$ 575.99$ 1,541.40$ 248.38$ 1,122.67$ 741.30$ 521.67$ 1,500.00$ 933.39$ +6cts 2,284.69$ 748.90$ 1,331.90$ 334.45$ 125.00$ 722.26$ 907.42$ 286.29$ 410.98$ 1,500.00$ 921.52$ 1,102.91$ 912.72$ +5cts 819.98$ 745.92$ 1,119.43$ 611.69$ 1,070.35$ 528.61$ 804.59$ 493.66$ 433.74$ 840.32$ 931.18$ 772.95$ 716.01$ +4cts 241.59$ 397.12$ 418.22$ 372.18$ 473.60$ 318.60$ 527.97$ 693.27$ 602.78$ 547.60$ 419.26$ 408.47$ 453.40$ +3cts 476.79$ 465.89$ 435.35$ 473.84$ 310.75$ 334.62$ 507.86$ 370.59$ 405.37$ 494.70$ 375.79$ 337.82$ 410.40$ 8gr 317.41$ 287.40$ 317.94$ 305.12$ 234.56$ 254.42$ 265.03$ 221.80$ 254.78$ 206.78$ 228.31$ 188.88$ 262.48$ 6gr 186.74$ 163.71$ 186.40$ 158.70$ 189.68$ 198.90$ 177.71$ 180.30$ 189.54$ 151.30$ 201.83$ 137.89$ 181.96$ 5gr 124.52$ 148.40$ 136.96$ 175.45$ 222.61$ 148.66$ 184.09$ 130.83$ 148.25$ 86.62$ 147.84$ 98.99$ 145.89$ 4gr 126.64$ 140.69$ 117.28$ 133.62$ 125.99$ 141.82$ 151.70$ 118.47$ 115.67$ 124.84$ 112.97$ 112.22$ 128.44$ 3gr 90.65$ 91.48$ 89.03$ 101.20$ 87.77$ 93.36$ 102.02$ 91.45$ 83.77$ 98.36$ 80.85$ 79.26$ 90.58$ +11 57.27$ 58.08$ 55.60$ 56.84$ 51.22$ 55.93$ 49.80$ 47.44$ 53.60$ 52.23$ 46.06$ 42.11$ 52.86$ +9 36.74$ 34.43$ 42.76$ 42.28$ 35.65$ 42.95$ 40.03$ 36.89$ 36.47$ 36.48$ 32.59$ 31.16$ 38.03$ +7 36.47$ 33.51$ 34.18$ 37.03$ 29.69$ 33.58$ 32.04$ 29.00$ 27.55$ 28.03$ 25.25$ 22.68$ 30.97$ +5 22.42$ 24.80$ 23.22$ 24.75$ 17.10$ 18.57$ 17.42$ 17.24$ 17.26$ 18.98$ 16.36$ 15.26$ 18.48$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ ‐3 1.67$ 1.67$ 1.67$ 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 2.99$ Av PPC 156.23$ 142.66$ 167.72$ 124.45$ 229.76$ 101.65$ 104.77$ 102.85$ 125.40$ 111.30$ 102.28$ 102.19$ 122.19$

TABLE 5.42: SACRAMORE Production and Valuation

CARATS % CONTRIBUTIONMonth Sep-99 Nov-99 Jun-00 Aug-00 Sep-00 Dec-01 Jan-02 Total Month Sep-99 Nov-99 Jun-00 Aug-00 Sep-00 Dec-01 Jan-02 TotalSize cts cts cts cts cts cts cts cts Size cts cts cts cts cts cts cts ctsSpecial 26.75 16.38 13.39 50.68 23.63 49.57 12.93 193 Special 0.6% 0.6% 0.2% 1.7% 0.6% 1.1% 0.3% 0.6%+10cts 0.00 0.00 0.00 0.00 10.70 0.00 10.60 21 +10cts 0.0% 0.0% 0.0% 0.0% 0.3% 0.0% 0.2% 0.1%+9cts 9.13 18.46 0.00 0.00 18.61 9.34 8.90 64 +9cts 0.2% 0.7% 0.0% 0.0% 0.5% 0.2% 0.2% 0.2%+8cts 24.67 0.00 8.68 0.00 33.33 8.12 24.27 99 +8cts 0.5% 0.0% 0.1% 0.0% 0.9% 0.2% 0.6% 0.3%+7cts 28.51 7.51 14.65 7.60 29.41 28.48 28.97 145 +7cts 0.6% 0.3% 0.2% 0.3% 0.8% 0.6% 0.7% 0.5%+6cts 36.87 24.55 30.54 0.00 44.78 49.02 50.64 236 +6cts 0.8% 1.0% 0.4% 0.0% 1.1% 1.1% 1.2% 0.8%+5cts 94.26 58.85 48.14 10.60 36.36 82.51 63.23 394 +5cts 2.0% 2.3% 0.6% 0.4% 0.9% 1.8% 1.5% 1.3%+4cts 89.24 42.61 72.61 7.72 25.98 107.49 108.74 454 +4cts 1.9% 1.7% 0.9% 0.3% 0.7% 2.4% 2.5% 1.5%+3cts 204.96 125.73 130.36 20.18 83.74 183.09 177.33 925 +3cts 4.4% 4.9% 1.6% 0.7% 2.1% 4.0% 4.1% 3.0%8gr 312.92 190.85 316.25 54.28 154.27 275.60 291.44 1,596 8gr 6.7% 7.5% 3.9% 1.9% 3.9% 6.1% 6.7% 5.2%6gr 216.87 126.35 246.96 32.09 121.51 177.43 177.19 1,098 6gr 4.6% 5.0% 3.1% 1.1% 3.1% 3.9% 4.1% 3.5%5gr 120.06 84.16 179.25 27.09 67.60 124.69 125.14 728 5gr 2.6% 3.3% 2.2% 0.9% 1.7% 2.8% 2.9% 2.4%4gr 312.73 139.43 356.70 69.13 173.97 260.66 245.36 1,558 4gr 6.7% 5.5% 4.4% 2.4% 4.5% 5.8% 5.7% 5.0%3gr 317.36 176.86 512.93 112.30 203.75 280.17 295.64 1,899 3gr 6.8% 7.0% 6.3% 3.9% 5.2% 6.2% 6.8% 6.1%+11 1054.56 602.37 1865.27 602.23 760.98 884.59 911.74 6,682 +11 22.6% 23.7% 23.1% 20.7% 19.5% 19.6% 21.1% 21.6%+9 852.63 432.01 1686.08 567.43 636.20 718.63 700.52 5,594 +9 18.3% 17.0% 20.8% 19.5% 16.3% 15.9% 16.2% 18.1%+7 472.52 279.03 1071.04 436.83 470.43 472.84 443.91 3,647 +7 10.1% 11.0% 13.2% 15.0% 12.0% 10.5% 10.2% 11.8%+5 461.47 207.55 1240.78 654.66 729.72 675.05 561.67 4,531 +5 9.9% 8.2% 15.3% 22.5% 18.7% 14.9% 13.0% 14.6%+3 30.18 10.26 253.29 228.16 256.21 128.81 86.07 993 +3 0.6% 0.4% 3.1% 7.8% 6.6% 2.8% 2.0% 3.2%-3 1.30 0.96 40.70 26.22 27.99 7.25 6.55 111 -3 0.028% 0.038% 0.503% 0.9% 0.7% 0.2% 0.2% 0.4%Total 4666.99 2543.92 8087.62 2907.20 3909.17 4523.34 4330.84 30,969 Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUESize US$ US$ US$ US$ US$ US$ US$ US$ Size %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$Special 9,743$ 31,548$ 26,700$ 113,423$ 57,356$ 94,628$ 970$ 334,368$ Special 1.4% 10.2% 4.6% 42.7% 11.6% 13.7% 0.2% 9.6%+10cts -$ -$ -$ -$ 54$ -$ 9,328$ 9,382$ +10cts 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 2.1% 0.3%+9cts 38,255$ 28,604$ -$ -$ 17,209$ 467$ 7,565$ 92,100$ +9cts 5.5% 9.2% 0.0% 0.0% 3.5% 0.1% 1.7% 2.6%+8cts 24,895$ -$ 14,261$ -$ 20,198$ 23,248$ 13,955$ 96,556$ +8cts 3.6% 0.0% 2.4% 0.0% 4.1% 3.4% 3.2% 2.8%+7cts 28,481$ 713$ 18,385$ 1,330$ 18,786$ 44,150$ 35,358$ 147,203$ +7cts 4.1% 0.2% 3.1% 0.5% 3.8% 6.4% 8.1% 4.2%+6cts 34,658$ 13,231$ 7,493$ -$ 25,033$ 18,986$ 12,015$ 111,416$ +6cts 5.0% 4.3% 1.3% 0.0% 5.0% 2.8% 2.8% 3.2%+5cts 41,186$ 23,972$ 17,708$ 5,313$ 23,424$ 45,844$ 20,347$ 177,793$ +5cts 5.9% 7.7% 3.0% 2.0% 4.7% 6.6% 4.7% 5.1%+4cts 60,865$ 17,435$ 29,377$ 4,588$ 29,591$ 56,260$ 49,082$ 247,197$ +4cts 8.7% 5.6% 5.0% 1.7% 6.0% 8.2% 11.2% 7.1%+3cts 103,582$ 32,173$ 29,333$ 12,338$ 55,879$ 68,891$ 52,371$ 354,567$ +3cts 14.8% 10.4% 5.0% 4.6% 11.3% 10.0% 12.0% 10.2%8gr 100,993$ 41,201$ 77,614$ 14,657$ 59,325$ 94,776$ 63,228$ 451,794$ 8gr 14.5% 13.3% 13.3% 5.5% 12.0% 13.7% 14.5% 13.0%6gr 49,089$ 19,918$ 41,691$ 7,396$ 26,873$ 40,523$ 29,036$ 214,526$ 6gr 7.0% 6.4% 7.1% 2.8% 5.4% 5.9% 6.6% 6.2%5gr 17,391$ 8,680$ 22,429$ 2,908$ 14,576$ 23,445$ 13,250$ 102,679$ 5gr 2.5% 2.8% 3.8% 1.1% 2.9% 3.4% 3.0% 2.9%4gr 40,748$ 15,170$ 37,440$ 7,573$ 21,318$ 37,775$ 25,397$ 185,422$ 4gr 5.8% 4.9% 6.4% 2.9% 4.3% 5.5% 5.8% 5.3%3gr 31,117$ 14,259$ 40,449$ 12,560$ 19,311$ 28,790$ 21,002$ 167,488$ 3gr 4.5% 4.6% 6.9% 4.7% 3.9% 4.2% 4.8% 4.8%+11 57,471$ 31,545$ 100,089$ 32,670$ 44,040$ 54,765$ 38,612$ 359,192$ +11 8.2% 10.2% 17.1% 12.3% 8.9% 7.9% 8.8% 10.3%+9 34,238$ 17,211$ 70,353$ 22,862$ 27,491$ 30,132$ 23,643$ 225,930$ +9 4.9% 5.6% 12.0% 8.6% 5.5% 4.4% 5.4% 6.5%+7 17,044$ 9,160$ 22,245$ 13,593$ 17,352$ 13,098$ 11,133$ 103,625$ +7 2.4% 3.0% 3.8% 5.1% 3.5% 1.9% 2.5% 3.0%+5 8,670$ 5,055$ 26,943$ 11,975$ 15,685$ 13,055$ 9,475$ 90,859$ +5 1.2% 1.6% 4.6% 4.5% 3.2% 1.9% 2.2% 2.6%+3 302$ 103$ 2,533$ 2,282$ 2,562$ 1,288$ 861$ 9,930$ +3 0.04% 0.03% 0.43% 0.86% 0.52% 0.19% 0.20% 0.29%-3 2$ 2$ 68$ 79$ 84$ 22$ 20$ 276$ -3 0.00% 0.00% 0.01% 0.03% 0.02% 0.00% 0.00% 0.01%Total 698,729$ 309,978$ 585,110$ 265,548$ 496,145$ 690,144$ 436,647$ 3,482,301$ Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

PRICE PER CARATMonth Sep-99 Nov-99 Jun-00 Aug-00 Sep-00 Dec-01 Jan-02 TotalSize US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 364.24$ 1,926.00$ 1,994.00$ 2,238.02$ 2,427.25$ 1,908.98$ 75.00$ 1,729.52$ +10cts -$ -$ -$ -$ 5.00$ 440.45$ +9cts 4,190.00$ 1,549.52$ -$ -$ 924.72$ 50.00$ 850.00$ 1,429.23$ +8cts 1,009.13$ -$ 1,643.00$ -$ 605.99$ 974.63$ +7cts 998.99$ 95.00$ 1,254.92$ 175.00$ 638.76$ 1,220.50$ 1,014.28$ +6cts 939.99$ 538.93$ 245.36$ -$ 559.02$ 387.31$ 237.26$ 471.30$ +5cts 436.94$ 407.33$ 367.85$ 501.23$ 644.22$ 555.62$ 321.79$ 451.31$ +4cts 682.03$ 409.18$ 404.58$ 594.29$ 1,138.98$ 523.40$ 451.37$ 544.02$ +3cts 505.38$ 255.89$ 225.01$ 611.41$ 667.29$ 376.27$ 295.33$ 383.15$ 8gr 322.74$ 215.88$ 245.42$ 270.03$ 384.55$ 343.89$ 216.95$ 283.15$ 6gr 226.35$ 157.64$ 168.82$ 230.49$ 221.16$ 228.39$ 163.87$ 195.31$ 5gr 144.85$ 103.14$ 125.12$ 107.35$ 215.62$ 188.03$ 105.88$ 141.04$ 4gr 130.30$ 108.80$ 104.96$ 109.55$ 122.54$ 144.92$ 103.51$ 119.01$ 3gr 98.05$ 80.62$ 78.86$ 111.84$ 94.78$ 102.76$ 71.04$ 88.20$ +11 54.50$ 52.37$ 53.66$ 54.25$ 57.87$ 61.91$ 42.35$ 53.76$ +9 40.16$ 39.84$ 41.73$ 40.29$ 43.21$ 41.93$ 33.75$ 40.39$ +7 36.07$ 32.83$ 20.77$ 31.12$ 36.89$ 27.70$ 25.08$ 28.42$ +5 18.79$ 24.35$ 21.71$ 18.29$ 21.49$ 19.34$ 16.87$ 20.05$

+3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$

-3 1.67$ 1.67$ 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 2.48$

Av PPC 149.72$ 121.85$ 72.35$ 91.34$ 126.92$ 152.57$ 100.82$ 112.44$

TABLE 5.43: LAUNFAL Production and Valuation

CARATS % CONTRIBUTIONSale Jun-00 Aug-00 Sep-00 Dec-01 Jan-02 Total Sale Jun-00 Aug-00 Sep-00 Dec-01 Jan-02 TotalWeight cts cts cts cts cts cts Weight cts cts cts cts cts ctsSpecial 80.71 13.00 0.00 0.00 0.00 94 Special 2.4% 0.4% 0.0% 0.0% 0.0% 0.7%+10cts 10.69 9.96 0.00 0.00 0.00 21 +10cts 0.3% 0.3% 0.0% 0.0% 0.0% 0.2%+9cts 27.74 0.00 0.00 0.00 0.00 28 +9cts 0.8% 0.0% 0.0% 0.0% 0.0% 0.2%+8cts 17.37 41.84 0.00 0.00 0.00 59 +8cts 0.5% 1.3% 0.0% 0.0% 0.0% 0.4%+7cts 14.45 35.31 0.00 7.07 0.00 57 +7cts 0.4% 1.1% 0.0% 0.3% 0.0% 0.4%+6cts 74.74 36.48 0.00 13.17 0.00 124 +6cts 2.2% 1.1% 0.0% 0.5% 0.0% 0.9%+5cts 16.06 52.26 15.39 5.06 5.30 94 +5cts 0.5% 1.6% 0.6% 0.2% 0.2% 0.7%+4cts 64.50 37.84 22.57 41.54 8.45 175 +4cts 1.9% 1.2% 0.9% 1.7% 0.4% 1.3%+3cts 137.40 100.65 57.25 30.93 40.47 367 +3cts 4.1% 3.1% 2.3% 1.2% 1.9% 2.7%8gr 190.78 195.91 95.91 92.61 81.37 657 8gr 5.7% 6.1% 3.9% 3.7% 3.8% 4.8%6gr 189.68 134.46 88.58 71.08 75.79 560 6gr 5.6% 4.2% 3.6% 2.8% 3.5% 4.1%5gr 118.69 90.31 69.46 72.61 61.75 413 5gr 3.5% 2.8% 2.8% 2.9% 2.9% 3.0%4gr 237.46 196.36 177.30 154.67 148.18 914 4gr 7.0% 6.1% 7.3% 6.2% 6.9% 6.7%3gr 270.02 237.00 208.75 218.29 191.12 1,125 3gr 8.0% 7.3% 8.6% 8.7% 8.9% 8.2%+11 786.71 738.09 618.76 636.32 570.89 3,351 +11 23.3% 22.9% 25.4% 25.3% 26.6% 24.5%+9 525.78 448.04 413.19 448.55 374.64 2,210 +9 15.6% 13.9% 16.9% 17.9% 17.4% 16.1%+7 272.22 299.38 244.96 277.62 221.14 1,315 +7 8.1% 9.3% 10.0% 11.1% 10.3% 9.6%+5 272.40 411.88 344.56 378.69 304.41 1,712 +5 8.1% 12.8% 14.1% 15.1% 14.2% 12.5%+3 58.41 132.87 77.03 59.51 59.74 388 +3 1.7% 4.1% 3.2% 2.4% 2.8% 2.8%-3 5.21 15.28 4.36 3.86 5.35 34 -3 0.155% 0.5% 0.2% 0.2% 0.2% 0.2%Total 3371.02 3226.92 2438.07 2511.58 2148.60 13,696 Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUEValue US$ US$ US$ US$ US$ US$ Value US$ US$ US$ US$ US$ US$Special 141,583$ 11,700$ -$ -$ -$ 153,283$ Special 23.4% 2.5% 0.0% 0.0% 0.0% 9.2%+10cts 13,127$ 9,522$ -$ -$ -$ 22,649$ +10cts 2.2% 2.1% 0.0% 0.0% 0.0% 1.4%+9cts 26,213$ -$ -$ -$ -$ 26,213$ +9cts 4.3% 0.0% 0.0% 0.0% 0.0% 1.6%+8cts 19,445$ 62,026$ -$ -$ -$ 81,472$ +8cts 3.2% 13.4% 0.0% 0.0% 0.0% 4.9%+7cts 17,796$ 12,865$ -$ 17,180$ -$ 47,841$ +7cts 2.9% 2.8% 0.0% 7.6% 0.0% 2.9%+6cts 34,364$ 40,727$ -$ 11,172$ -$ 86,263$ +6cts 5.7% 8.8% 0.0% 4.9% 0.0% 5.2%+5cts 12,869$ 38,211$ 1,504$ 304$ 318$ 53,206$ +5cts 2.1% 8.3% 0.7% 0.1% 0.2% 3.2%+4cts 22,713$ 21,417$ 18,561$ 23,007$ 3,697$ 89,396$ +4cts 3.8% 4.6% 8.9% 10.1% 2.4% 5.4%+3cts 63,983$ 38,267$ 25,905$ 10,945$ 20,999$ 160,098$ +3cts 10.6% 8.3% 12.4% 4.8% 13.4% 9.6%8gr 60,521$ 56,027$ 23,324$ 29,812$ 22,736$ 192,420$ 8gr 10.0% 12.1% 11.2% 13.1% 14.5% 11.6%6gr 37,590$ 23,310$ 14,603$ 15,603$ 11,420$ 102,526$ 6gr 6.2% 5.0% 7.0% 6.9% 7.3% 6.2%5gr 14,591$ 12,282$ 11,108$ 9,807$ 8,400$ 56,189$ 5gr 2.4% 2.7% 5.3% 4.3% 5.3% 3.4%4gr 31,976$ 30,086$ 23,743$ 20,180$ 18,826$ 124,811$ 4gr 5.3% 6.5% 11.4% 8.9% 12.0% 7.5%3gr 22,376$ 28,007$ 17,543$ 21,991$ 17,556$ 107,473$ 3gr 3.7% 6.1% 8.4% 9.7% 11.2% 6.5%+11 44,557$ 39,355$ 35,182$ 33,846$ 29,247$ 182,186$ +11 7.4% 8.5% 16.9% 14.9% 18.6% 11.0%+9 24,221$ 18,715$ 18,777$ 17,973$ 13,154$ 92,839$ +9 4.0% 4.0% 9.0% 7.9% 8.4% 5.6%+7 9,750$ 9,985$ 9,781$ 7,643$ 5,522$ 42,681$ +7 1.6% 2.2% 4.7% 3.4% 3.5% 2.6%+5 6,385$ 8,303$ 7,781$ 6,835$ 4,606$ 33,910$ +5 1.1% 1.8% 3.7% 3.0% 2.9% 2.0%+3 584$ 1,329$ 770$ 595$ 597$ 3,876$ +3 0.10% 0.29% 0.37% 0.26% 0.38% 0.23%-3 9$ 46$ 13$ 12$ 16$ 95$ -3 0.00% 0.01% 0.01% 0.01% 0.01% 0.01%Total 604,654$ 462,180$ 208,597$ 226,904$ 157,094$ 1,659,429$ Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

PRICE PER CARATPPC US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 1,754.22$ 900.00$ -$ -$ -$ 1,635.72$ +10cts 1,228.00$ 956.00$ -$ 1,096.81$ +9cts 944.94$ -$ -$ -$ 944.94$ +8cts 1,119.49$ 1,482.46$ -$ 1,375.98$ +7cts 1,231.57$ 364.35$ -$ -$ 841.83$ +6cts 459.79$ 1,116.42$ -$ 848.29$ -$ 693.49$ +5cts 801.31$ 731.18$ 97.76$ 60.00$ 60.00$ 565.60$ +4cts 352.14$ 566.00$ 822.36$ 553.86$ 437.55$ 511.13$ +3cts 465.67$ 380.19$ 452.48$ 353.87$ 518.88$ 436.59$ 8gr 317.23$ 285.98$ 243.19$ 321.91$ 279.41$ 293.06$ 6gr 198.18$ 173.36$ 164.86$ 219.51$ 150.68$ 183.22$ 5gr 122.93$ 136.00$ 159.93$ 135.06$ 136.04$ 136.11$ 4gr 134.66$ 153.22$ 133.92$ 130.47$ 127.05$ 136.56$ 3gr 82.87$ 118.17$ 84.04$ 100.74$ 91.86$ 95.52$ +11 56.64$ 53.32$ 56.86$ 53.19$ 51.23$ 54.37$ +9 46.07$ 41.77$ 45.44$ 40.07$ 35.11$ 42.00$ +7 35.82$ 33.35$ 39.93$ 27.53$ 24.97$ 32.45$ +5 23.44$ 20.16$ 22.58$ 18.05$ 15.13$ 19.81$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ -3 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 2.80$ Av PPC 179.37$ 143.23$ 85.56$ 90.34$ 73.11$ 121.16$

TABLE 5.44: LAUNFAL NORTH Production and Valuation

CARATS % CONTRIBUTIONGW Spec Val YW Spec Val Total % Weight GW Spec Val YW Spec Val Total

Weight cts cts cts Wweight cts cts cts

Spec 67 50 117 Spec 1.9% 0.9% 1.3%

10cts 31 10 41 10cts 0.9% 0.2% 0.4%

9cts 10 9 19 9cts 0.3% 0.2% 0.2%

8cts 25 25 49 8cts 0.7% 0.4% 0.5%

7cts 42 16 58 7cts 1.2% 0.3% 0.6%

6cts 32 43 75 6cts 0.9% 0.8% 0.8%

5cts 42 62 104 5cts 1.1% 1.1% 1.1%

4cts 93 92 185 4cts 2.6% 1.6% 2.0%

3cts 107 203 309 3cts 2.9% 3.6% 3.3%

8-10gr 245 351 596 8-10gr 6.8% 6.2% 6.4%

6gr 151 243 394 6gr 4.2% 4.3% 4.2%

5gr 100 124 224 5gr 2.8% 2.2% 2.4%

4gr 215 231 446 4gr 5.9% 4.1% 4.8%

3gr 212 242 454 3gr 5.9% 4.3% 4.9%

+11 712 907 1,619 +11 19.6% 16.0% 17.4%

+9 524 872 1,396 +9 14.5% 15.3% 15.0%

+7 355 663 1,018 +7 9.8% 11.7% 10.9%

+5 518 1,139 1,657 +5 14.3% 20.1% 17.8%

+3 123 342 465 +3 3.4% 6.0% 5.0%

-3 21 57 78 -3 0.6% 1.0% 0.8%

Total 3,623 5,681 9,304 Total 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUEValue GW Spec Val YW Spec Val Total Value GW Spec Val YW Spec Val Total

Spec 101,826$ 30,871$ 132,697$ Spec 19.2% 6.5% 13.2%

10cts 57,038$ 12,437$ 69,475$ 10cts 10.7% 2.6% 6.9%

9cts 19,639$ 9,133$ 28,771$ 9cts 3.7% 1.9% 2.9%

8cts 13,952$ 9,832$ 23,783$ 8cts 2.6% 2.1% 2.4%

7cts 37,204$ 11,866$ 49,070$ 7cts 7.0% 2.5% 4.9%

6cts 25,627$ 26,029$ 51,656$ 6cts 4.8% 5.5% 5.1%

5cts 31,568$ 24,664$ 56,232$ 5cts 5.9% 5.2% 5.6%

4cts 23,105$ 31,612$ 54,717$ 4cts 4.4% 6.7% 5.4%

3cts 30,388$ 58,727$ 89,114$ 3cts 5.7% 12.4% 8.9%

8-10gr 59,661$ 71,348$ 131,009$ 8-10gr 11.2% 15.1% 13.0%

6gr 23,556$ 32,240$ 55,796$ 6gr 4.4% 6.8% 5.6%

5gr 10,427$ 13,579$ 24,006$ 5gr 2.0% 2.9% 2.4%

4gr 17,485$ 21,156$ 38,640$ 4gr 3.3% 4.5% 3.8%

3gr 12,399$ 14,197$ 26,596$ 3gr 2.3% 3.0% 2.6%

+11 29,555$ 36,122$ 65,678$ +11 5.6% 7.6% 6.5%

+9 18,074$ 29,300$ 47,374$ +9 3.4% 6.2% 4.7%

+7 8,281$ 16,469$ 24,750$ +7 1.6% 3.5% 2.5%

+5 9,699$ 20,320$ 30,019$ +5 1.8% 4.3% 3.0%

+3 1,222$ 3,383$ 4,605$ +3 0.2% 0.7% 0.5%

-3 63$ 172$ 234$ -3 0.0% 0.0% 0.0%

Total 530,767$ 473,456$ 1,004,223$ Total 100.0% 100.0% 100.0%

PRICE PER CARATPrice GW Spec Val YW Spec Val Total

Spec 1,517.07$ 615.46$ 1,131.46$

10cts 1,827.55$ 1,237.50$ 1,683.83$

9cts 2,012.14$ 1,012.50$ 1,532.02$

8cts 569.45$ 393.42$ 480.57$

7cts 879.11$ 763.11$ 847.94$

6cts 813.04$ 602.66$ 691.42$

5cts 760.67$ 397.36$ 542.93$

4cts 248.62$ 343.91$ 296.01$

3cts 285.06$ 289.97$ 288.27$

8-10gr 243.64$ 203.16$ 219.79$

6gr 156.52$ 132.64$ 141.77$

5gr 104.51$ 109.12$ 107.06$

4gr 81.21$ 91.77$ 86.67$

3gr 58.37$ 58.76$ 58.58$

+11 41.53$ 39.81$ 40.57$

+9 34.49$ 33.61$ 33.94$

+7 23.33$ 24.83$ 24.31$

+5 18.71$ 17.84$ 18.11$

+3 9.90$ 9.90$ 9.90$

-3 3.00$ 3.00$ 3.00$

Av PPC 146.48$ 83.34$ 107.93$

TABLE 5.45: GAWAIN‐ YWAIN SPECIAL PARCEL

CARATS % CONTRIBUTIONSale Sep-99 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Total Sale Sep-99 Nov-00 Feb-01 May-01 Oct-01 Dec-01 TotalWeight cts cts cts cts cts cts cts Weight cts cts cts cts cts cts ctsSpecial 76.35 201.66 0.00 0.00 80.89 19.50 378 Special 2.7% 3.9% 0.0% 0.0% 5.6% 2.2% 3.6%+10cts 20.39 30.99 0.00 0.00 0.00 10.79 62 +10cts 0.7% 0.6% 0.0% 0.0% 0.0% 1.2% 0.6%+9cts 18.37 27.36 0.00 0.00 18.24 0.00 64 +9cts 0.6% 0.5% 0.0% 0.0% 1.3% 0.0% 0.6%+8cts 16.70 33.26 0.00 0.00 24.93 0.00 75 +8cts 0.6% 0.6% 0.0% 0.0% 1.7% 0.0% 0.7%+7cts 22.43 34.94 0.00 0.00 0.00 0.00 57 +7cts 0.8% 0.7% 0.0% 0.0% 0.0% 0.0% 0.5%+6cts 5.91 51.39 0.00 0.00 6.55 0.00 64 +6cts 0.2% 1.0% 0.0% 0.0% 0.5% 0.0% 0.6%+5cts 58.02 65.22 0.00 10.68 4.89 10.08 149 +5cts 2.1% 1.3% 0.0% 19.4% 0.3% 1.1% 1.4%+4cts 76.22 126.79 0.00 0.00 29.80 4.50 237 +4cts 2.7% 2.5% 0.0% 0.0% 2.1% 0.5% 2.3%+3cts 98.41 119.45 0.00 3.59 53.79 12.65 288 +3cts 3.5% 2.3% 0.0% 6.5% 3.7% 1.4% 2.7%8gr 174.58 252.54 2.49 7.20 94.19 30.65 562 8gr 6.2% 4.9% 3.1% 13.1% 6.5% 3.4% 5.4%6gr 106.87 187.44 1.73 0.00 44.45 31.45 372 6gr 3.8% 3.6% 2.1% 0.0% 3.1% 3.5% 3.6%5gr 72.31 112.30 0.00 0.00 30.70 13.01 228 5gr 2.6% 2.2% 0.0% 0.0% 2.1% 1.4% 2.2%4gr 163.58 271.88 0.92 0.00 67.26 35.44 539 4gr 5.8% 5.3% 1.1% 0.0% 4.6% 3.9% 5.1%3gr 199.61 271.71 2.41 2.94 61.45 53.39 592 3gr 7.1% 5.3% 3.0% 5.3% 4.2% 5.9% 5.6%+11 567.10 881.38 10.92 13.18 261.56 153.98 1,888 +11 20.1% 17.1% 13.5% 23.9% 18.0% 17.0% 18.0%+9 475.83 784.05 13.32 8.11 211.68 166.82 1,660 +9 16.8% 15.2% 16.5% 14.7% 14.6% 18.4% 15.9%+7 298.15 525.71 9.97 2.75 147.65 128.95 1,113 +7 10.5% 10.2% 12.4% 5.0% 10.2% 14.2% 10.6%+5 343.20 849.11 24.79 4.67 240.59 188.95 1,651 +5 12.1% 16.5% 30.7% 8.5% 16.6% 20.8% 15.8%+3 31.59 272.76 11.60 1.94 67.04 42.36 427 +3 1.1% 5.3% 14.4% 3.5% 4.6% 4.7% 4.1%-3 1.31 50.32 2.47 0.11 6.98 3.83 65 -3 0.0% 1.0% 3.1% 0.2% 0.5% 0.4% 0.6%Total 2826.93 5150.26 80.62 55.17 1452.64 906.35 10,472 Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUEValue US$ US$ US$ US$ US$ US$ US$ Value US$ US$ US$ US$ US$ US$ US$Special 678$ 111,640$ -$ -$ 39,007$ 21,450$ 172,775$ Special 0.3% 18.9% 0.0% 0.0% 20.7% 29.6% 16.0%+10cts 23,790$ 49,474$ -$ -$ -$ 2,698$ 75,961$ +10cts 10.9% 8.4% 0.0% 0.0% 0.0% 3.7% 7.1%+9cts 404$ 15,818$ -$ -$ 19,551$ -$ 35,773$ +9cts 0.2% 2.7% 0.0% 0.0% 10.4% 0.0% 3.3%+8cts 6,676$ 42,027$ -$ -$ 20,647$ -$ 69,350$ +8cts 3.1% 7.1% 0.0% 0.0% 10.9% 0.0% 6.4%+7cts 12,025$ 11,389$ -$ -$ -$ -$ 23,415$ +7cts 5.5% 1.9% 0.0% 0.0% 0.0% 0.0% 2.2%+6cts 14$ 50,548$ -$ -$ 14,410$ -$ 64,972$ +6cts 0.0% 8.6% 0.0% 0.0% 7.6% 0.0% 6.0%+5cts 13,450$ 18,735$ -$ 1,272$ 293$ 3,465$ 37,215$ +5cts 6.2% 3.2% 0.0% 30.2% 0.2% 4.8% 3.5%+4cts 19,471$ 49,597$ -$ -$ 5,113$ 90$ 74,271$ +4cts 8.9% 8.4% 0.0% 0.0% 2.7% 0.1% 6.9%+3cts 16,024$ 30,252$ -$ 449$ 15,506$ 9,366$ 71,597$ +3cts 7.3% 5.1% 0.0% 10.6% 8.2% 12.9% 6.6%8gr 45,861$ 45,571$ 75$ 1,146$ 19,464$ 8,628$ 120,745$ 8gr 21.0% 7.7% 3.8% 27.2% 10.3% 11.9% 11.2%6gr 11,626$ 17,842$ 390$ -$ 7,747$ 4,588$ 42,193$ 6gr 5.3% 3.0% 19.9% 0.0% 4.1% 6.3% 3.9%5gr 5,496$ 12,536$ -$ -$ 3,444$ 1,122$ 22,599$ 5gr 2.5% 2.1% 0.0% 0.0% 1.8% 1.5% 2.1%4gr 11,617$ 23,632$ 45$ -$ 7,807$ 2,182$ 45,284$ 4gr 5.3% 4.0% 2.3% 0.0% 4.1% 3.0% 4.2%3gr 10,786$ 16,720$ 56$ 114$ 5,591$ 3,602$ 36,869$ 3gr 4.9% 2.8% 2.9% 2.7% 3.0% 5.0% 3.4%+11 20,430$ 37,647$ 347$ 716$ 13,555$ 5,787$ 78,482$ +11 9.4% 6.4% 17.7% 17.0% 7.2% 8.0% 7.3%+9 11,100$ 27,155$ 370$ 348$ 8,059$ 4,332$ 51,365$ +9 5.1% 4.6% 18.9% 8.3% 4.3% 6.0% 4.8%+7 5,998$ 15,221$ 242$ 81$ 3,800$ 2,520$ 27,861$ +7 2.7% 2.6% 12.3% 1.9% 2.0% 3.5% 2.6%+5 2,724$ 12,505$ 316$ 70$ 4,173$ 2,143$ 21,931$ +5 1.2% 2.1% 16.1% 1.7% 2.2% 3.0% 2.0%+3 316$ 2,728$ 116$ 19$ 670$ 424$ 4,273$ +3 0.1% 0.5% 5.9% 0.5% 0.4% 0.6% 0.4%-3 2$ 151$ 7$ 0$ 21$ 11$ 193$ -3 0.0% 0.0% 0.4% 0.0% 0.0% 0.0% 0.0%Total 218,489$ 591,189$ 1,964$ 4,215$ 188,860$ 72,407$ 1,077,125$ Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

PRICE PER CARATPPC US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 8.88$ 553.60$ -$ -$ 482.22$ 1,100.00$ 456.59$ +10cts 1,166.75$ 1,596.45$ -$ -$ -$ 1,221.83$ +9cts 21.98$ 578.15$ -$ -$ 1,071.88$ -$ 559.22$ +8cts 399.78$ 1,263.58$ -$ -$ 828.18$ 926.02$ +7cts 536.13$ 325.97$ -$ -$ -$ 408.14$ +6cts 2.33$ 983.61$ -$ -$ 2,200.00$ -$ 1,017.57$ +5cts 231.82$ 287.26$ -$ 119.12$ 60.00$ 343.71$ 249.95$ +4cts 255.46$ 391.17$ -$ -$ 171.58$ 20.00$ 312.97$ +3cts 162.83$ 253.26$ -$ 125.00$ 288.27$ 740.40$ 248.69$ 8gr 262.70$ 180.45$ 30.00$ 159.17$ 206.65$ 281.50$ 214.98$ 6gr 108.78$ 95.19$ 225.55$ -$ 174.28$ 145.89$ 113.44$ 5gr 76.01$ 111.63$ -$ -$ 112.19$ 86.24$ 98.98$ 4gr 71.02$ 86.92$ 48.77$ -$ 116.07$ 61.58$ 84.00$ 3gr 54.03$ 61.54$ 23.43$ 38.66$ 90.99$ 67.47$ 62.33$ +11 36.03$ 42.71$ 31.78$ 54.31$ 51.83$ 37.58$ 41.57$ +9 23.33$ 34.63$ 27.80$ 42.92$ 38.07$ 25.97$ 30.95$ +7 20.12$ 28.95$ 24.23$ 29.40$ 25.74$ 19.54$ 25.03$ +5 7.94$ 14.73$ 12.73$ 14.99$ 17.35$ 11.34$ 13.28$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ -3 1.67$ 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ 2.97$ Av PPC 77.29$ 114.79$ 24.36$ 76.40$ 130.01$ 79.89$ 102.86$

TABLE 5.46: KAYE Production and Valuation

CARATS % CONTRIBUTIONSale Nov-00 Oct-01 Total Sale Nov-00 Oct-01 TotalWeight cts cts cts Weight cts cts ctsSpecial 28.55 11.83 40 Special 2.0% 1.1% 1.6%+10cts 0.00 0.00 - +10cts 0.0% 0.0% 0.0%+9cts 0.00 0.00 - +9cts 0.0% 0.0% 0.0%+8cts 0.00 7.86 8 +8cts 0.0% 0.7% 0.3%+7cts 7.13 7.56 15 +7cts 0.5% 0.7% 0.6%+6cts 0.00 0.00 - +6cts 0.0% 0.0% 0.0%+5cts 21.61 42.54 64 +5cts 1.5% 3.9% 2.5%+4cts 21.25 24.66 46 +4cts 1.5% 2.3% 1.8%+3cts 50.33 45.15 95 +3cts 3.5% 4.2% 3.8%8gr 69.85 74.65 145 8gr 4.8% 6.9% 5.7%6gr 59.52 33.97 93 6gr 4.1% 3.1% 3.7%5gr 46.66 23.56 70 5gr 3.2% 2.2% 2.8%4gr 77.58 67.16 145 4gr 5.3% 6.2% 5.7%3gr 102.15 55.13 157 3gr 7.0% 5.1% 6.2%+11 262.04 194.69 457 +11 18.0% 17.9% 17.9%+9 211.05 150.39 361 +9 14.5% 13.8% 14.2%+7 143.13 110.10 253 +7 9.8% 10.1% 9.9%+5 248.04 177.04 425 +5 17.0% 16.3% 16.7%+3 91.56 56.79 148 +3 6.3% 5.2% 5.8%-3 17.19 4.83 22 -3 1.2% 0.4% 0.9%Total 1457.64 1087.91 2,546 Total 100.0% 100.0% 100.0%

VALUE % CONTRIBUTION VALUEValue US$ US$ US$ Value US$ US$ US$Special 11,807$ 14,196$ 26,003$ Special 10.76% 12.10% 11.45%+10cts -$ -$ -$ +10cts 0.00% 0.00% 0.00%+9cts -$ -$ -$ +9cts 0.00% 0.00% 0.00%+8cts -$ 3,930$ 3,930$ +8cts 0.00% 3.35% 1.73%+7cts 1,783$ 1,134$ 2,917$ +7cts 1.62% 0.97% 1.28%+6cts -$ -$ -$ +6cts 0.00% 0.00% 0.00%+5cts 7,379$ 23,545$ 30,924$ +5cts 6.73% 20.07% 13.62%+4cts 3,139$ 6,558$ 9,697$ +4cts 2.86% 5.59% 4.27%+3cts 11,129$ 11,996$ 23,125$ +3cts 10.14% 10.23% 10.19%8gr 15,753$ 17,513$ 33,266$ 8gr 14.36% 14.93% 14.65%6gr 8,045$ 4,543$ 12,588$ 6gr 7.33% 3.87% 5.54%5gr 6,565$ 3,630$ 10,195$ 5gr 5.98% 3.09% 4.49%4gr 8,785$ 5,213$ 13,998$ 4gr 8.01% 4.44% 6.17%3gr 8,054$ 3,982$ 12,035$ 3gr 7.34% 3.39% 5.30%+11 11,809$ 10,023$ 21,832$ +11 10.76% 8.54% 9.62%+9 6,721$ 4,973$ 11,694$ +9 6.13% 4.24% 5.15%+7 3,956$ 2,668$ 6,624$ +7 3.61% 2.27% 2.92%+5 3,824$ 2,819$ 6,642$ +5 3.49% 2.40% 2.93%+3 916$ 568$ 1,484$ +3 0.83% 0.48% 0.65%-3 52$ 14$ 66$ -3 0.05% 0.01% 0.03%

Total 109,714$ 117,304$ 227,019$ Total 100.00% 100.00% 100.00%

PRICE PER CARATPPC US$/ct US$/ct US$/ctSpecial 413.55$ 1,200.00$ 643.96$ +10cts -$ -$ -$ +9cts -$ -$ -$ +8cts -$ 500.00$ 500.00$ +7cts 250.00$ 150.00$ 198.54$ +6cts -$ -$ -$ +5cts 341.45$ 553.47$ 482.05$ +4cts 147.73$ 265.92$ 211.22$ +3cts 221.11$ 265.70$ 242.20$ 8gr 225.53$ 234.60$ 230.21$ 6gr 135.17$ 133.73$ 134.64$ 5gr 140.70$ 154.07$ 145.19$ 4gr 113.23$ 77.63$ 96.71$ 3gr 78.84$ 72.22$ 76.52$ +11 45.06$ 51.48$ 47.80$ +9 31.84$ 33.07$ 32.35$ +7 27.64$ 24.23$ 26.16$ +5 15.42$ 15.92$ 15.63$ +3 10.00$ 10.00$ 10.00$ -3 3.00$ 3.00$ 3.00$ Av PPC 75.27$ 107.83$ 89.18$

TABLE 5.47: ECTOR Production and Valuation

CARATS % CONTRIBUTIONSale Sep-00 Nov-00 Oct-01 Jan-02 Total Sale Sep-00 Nov-00 Oct-01 Jan-02 TotalWeight cts cts cts cts cts Weight cts cts cts cts ctsSpecial 49.47 109.93 38.79 0.00 198 Special 2.9% 3.2% 5.0% 0.0% 3.06%+10cts 0.00 0.00 0.00 0.00 - +10cts 0.0% 0.0% 0.0% 0.0% 0.00%+9cts 9.67 0.00 0.00 0.00 10 +9cts 0.6% 0.0% 0.0% 0.0% 0.15%+8cts 33.02 17.39 0.00 0.00 50 +8cts 1.9% 0.5% 0.0% 0.0% 0.78%+7cts 7.11 21.93 6.80 0.00 36 +7cts 0.4% 0.6% 0.9% 0.0% 0.55%+6cts 19.12 37.39 0.00 12.04 69 +6cts 1.1% 1.1% 0.0% 2.3% 1.06%+5cts 16.41 37.47 22.08 10.66 87 +5cts 1.0% 1.1% 2.9% 2.0% 1.34%+4cts 47.73 38.42 4.09 8.48 99 +4cts 2.8% 1.1% 0.5% 1.6% 1.53%+3cts 63.35 60.90 30.52 8.89 164 +3cts 3.7% 1.8% 4.0% 1.7% 2.53%8gr 145.88 141.73 41.87 22.98 352 8gr 8.6% 4.1% 5.4% 4.3% 5.45%6gr 90.55 70.63 29.45 28.06 219 6gr 5.3% 2.0% 3.8% 5.3% 3.38%5gr 61.29 44.47 11.52 19.43 137 5gr 3.6% 1.3% 1.5% 3.7% 2.11%4gr 95.02 107.33 40.21 24.61 267 4gr 5.6% 3.1% 5.2% 4.6% 4.13%3gr 92.26 147.51 45.96 35.87 322 3gr 5.4% 4.2% 6.0% 6.8% 4.97%+11 268.34 503.12 142.16 118.67 1,032 +11 15.8% 14.5% 18.5% 22.4% 15.96%+9 208.52 540.99 116.35 82.30 948 +9 12.3% 15.6% 15.1% 15.5% 14.66%+7 142.27 418.18 81.94 57.87 700 +7 8.4% 12.0% 10.7% 10.9% 10.82%+5 237.45 859.36 127.28 82.53 1,307 +5 14.0% 24.8% 16.6% 15.6% 20.20%+3 98.75 274.02 29.06 16.70 419 +3 5.8% 7.9% 3.8% 3.1% 6.47%-3 12.75 40.11 0.85 1.52 55 -3 0.8% 1.2% 0.1% 0.3% 0.85%Total 1698.96 3470.88 768.93 530.61 6,469 Total 100.0% 100.0% 100.0% 100.0% 100.00%

VALUE % CONTRIBUTION VALUEValue US$ US$ US$ US$ US$ Value US$ US$ US$ US$ US$Special 64,096$ 20,653$ 5,439$ -$ 90,188$ Special 23.5% 11.6% 10.6% 0.0% 16.80%+10cts -$ -$ -$ -$ -$ +10cts 0.0% 0.0% 0.0% 0.0% 0.00%+9cts 2,079$ -$ -$ -$ 2,079$ +9cts 0.8% 0.0% 0.0% 0.0% 0.39%+8cts 23,894$ 2,825$ -$ -$ 26,718$ +8cts 8.7% 1.6% 0.0% 0.0% 4.98%+7cts 533$ 10,422$ 7,480$ -$ 18,435$ +7cts 0.2% 5.9% 14.6% 0.0% 3.43%+6cts 12,133$ 11,241$ -$ 330$ 23,704$ +6cts 4.4% 6.3% 0.0% 1.0% 4.42%+5cts 11,252$ 14,612$ 547$ 2,428$ 28,839$ +5cts 4.1% 8.2% 1.1% 7.0% 5.37%+4cts 16,952$ 16,898$ 3,681$ 2,260$ 39,791$ +4cts 6.2% 9.5% 7.2% 6.6% 7.41%+3cts 33,690$ 13,195$ 5,370$ 4,653$ 56,908$ +3cts 12.3% 7.4% 10.5% 13.5% 10.60%8gr 34,591$ 14,110$ 9,126$ 2,646$ 60,473$ 8gr 12.7% 7.9% 17.8% 7.7% 11.27%6gr 18,778$ 6,247$ 2,147$ 5,569$ 32,741$ 6gr 6.9% 3.5% 4.2% 16.1% 6.10%5gr 7,051$ 4,498$ 448$ 2,015$ 14,012$ 5gr 2.6% 2.5% 0.9% 5.8% 2.61%4gr 14,237$ 7,437$ 3,047$ 2,961$ 27,682$ 4gr 5.2% 4.2% 5.9% 8.6% 5.16%3gr 8,582$ 6,931$ 2,872$ 2,498$ 20,883$ 3gr 3.1% 3.9% 5.6% 7.2% 3.89%+11 11,656$ 16,331$ 4,630$ 4,615$ 37,232$ +11 4.3% 9.2% 9.0% 13.4% 6.94%+9 6,101$ 13,468$ 3,043$ 2,148$ 24,759$ +9 2.2% 7.6% 5.9% 6.2% 4.61%+7 3,535$ 8,440$ 1,500$ 1,135$ 14,610$ +7 1.3% 4.7% 2.9% 3.3% 2.72%+5 2,905$ 7,791$ 1,611$ 1,058$ 13,366$ +5 1.1% 4.4% 3.1% 3.1% 2.49%+3 988$ 2,740$ 291$ 167$ 4,185$ +3 0.4% 1.5% 0.6% 0.5% 0.78%-3 38$ 120$ 3$ 5$ 166$ -3 0.0% 0.1% 0.0% 0.0% 0.03%Total 273,091$ 177,958$ 51,234$ 34,488$ 536,771$ Total 100.0% 100.0% 100.0% 100.0% 100.00%

PRICE PER CARATPPC US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 1,295.65$ 187.88$ 140.22$ -$ 455.06$ +10cts -$ -$ -$ -$ +9cts 215.00$ -$ -$ -$ 215.00$ +8cts 723.61$ 162.42$ -$ 530.02$ +7cts 75.00$ 475.23$ 1,100.00$ 514.37$ +6cts 634.58$ 300.64$ -$ 27.39$ 345.79$ +5cts 685.67$ 389.96$ 24.77$ 227.79$ 332.94$ +4cts 355.17$ 439.81$ 900.00$ 266.48$ 403.07$ +3cts 531.81$ 216.66$ 175.94$ 523.39$ 347.72$ 8gr 237.12$ 99.56$ 217.96$ 115.13$ 171.57$ 6gr 207.37$ 88.44$ 72.92$ 198.48$ 149.71$ 5gr 115.04$ 101.16$ 38.85$ 103.71$ 102.49$ 4gr 149.83$ 69.29$ 75.79$ 120.33$ 103.61$ 3gr 93.02$ 46.99$ 62.48$ 69.63$ 64.93$ +11 43.44$ 32.46$ 32.57$ 38.89$ 36.07$ +9 29.26$ 24.89$ 26.15$ 26.10$ 26.11$ +7 24.85$ 20.18$ 18.31$ 19.62$ 20.86$ +5 12.24$ 9.07$ 12.66$ 12.82$ 10.23$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ -3 3.00$ 3.00$ 3.00$ 3.00$ 3.00$ Av PPC 160.74$ 51.27$ 66.63$ 65.00$ 82.97$

TABLE 5.48: GARETH Production and Valuation

CARATS % CONTRIBUTIONPipe Excalibur Palomides Sacramore # Launfal Launfal N Gawain Ywain Kaye Ector Gareth Total Pipe Excalibur Palomides Sacramore Launfal Laun Nth Gawain Ywain Kaye Ector Gareth TotalWeight cts cts cts cts cts cts cts cts cts cts cts cts Weight %cts %cts %cts %cts %cts %cts %cts %cts %cts %cts %cts

Special 270.84 684.46 449.07 193.33 93.71 67.12 50.16 378.40 40.38 198.19 2,155 Special 0.23% 1.4% 0.93% 0.6% 0.68% 1.9% 0.9% 3.61% 1.59% 3.06% 1.25%+10cts 133.70 103.18 113.65 21.30 20.65 31.21 10.05 62.17 0.00 0.00 362 +10cts 0.12% 0.2% 0.23% 0.1% 0.15% 0.9% 0.2% 0.59% 0.00% 0.00% 0.21%+9cts 223.00 112.34 165.52 64.44 27.74 9.76 9.02 63.97 0.00 9.67 462 +9cts 0.19% 0.2% 0.34% 0.2% 0.20% 0.3% 0.2% 0.61% 0.00% 0.15% 0.27%+8cts 198.24 171.60 174.51 99.07 59.21 24.50 24.99 74.89 7.86 50.41 687 +8cts 0.17% 0.3% 0.36% 0.3% 0.43% 0.7% 0.4% 0.72% 0.31% 0.78% 0.40%+7cts 443.35 167.78 291.46 145.13 56.83 42.32 15.55 57.37 14.69 35.84 827 +7cts 0.38% 0.3% 0.60% 0.5% 0.41% 1.2% 0.3% 0.55% 0.58% 0.55% 0.48%+6cts 628.85 210.64 330.29 236.40 124.39 31.52 43.19 63.85 0.00 68.55 1,109 +6cts 0.54% 0.4% 0.68% 0.8% 0.91% 0.9% 0.8% 0.61% 0.00% 1.06% 0.65%+5cts 903.34 498.03 578.22 393.95 94.07 41.50 62.07 148.89 64.15 86.62 1,968 +5cts 0.78% 1.0% 1.19% 1.3% 0.69% 1.1% 1.1% 1.42% 2.52% 1.34% 1.14%+4cts 1636.12 666.93 737.37 454.39 174.90 92.93 91.92 237.31 45.91 98.72 2,600 +4cts 1.41% 1.3% 1.52% 1.5% 1.28% 2.6% 1.6% 2.27% 1.80% 1.53% 1.51%+3cts 3125.63 1275.13 1449.50 925.39 366.70 106.60 202.53 287.89 95.48 163.66 4,873 +3cts 2.69% 2.5% 2.99% 3.0% 2.68% 2.9% 3.6% 2.75% 3.75% 2.53% 2.83%8gr 6406.74 2663.13 2640.84 1595.61 656.58 244.87 351.19 561.65 144.50 352.46 9,211 8gr 5.51% 5.2% 5.44% 5.2% 4.79% 6.8% 6.2% 5.36% 5.68% 5.45% 5.36%6gr 4728.98 1913.74 1835.04 1098.40 559.59 150.50 243.07 371.94 93.49 218.69 6,484 6gr 4.07% 3.7% 3.78% 3.5% 4.09% 4.2% 4.3% 3.55% 3.67% 3.38% 3.77%5gr 3179.59 1419.93 1293.51 727.99 412.82 99.77 124.45 228.32 70.22 136.71 4,514 5gr 2.74% 2.8% 2.66% 2.4% 3.01% 2.8% 2.2% 2.18% 2.76% 2.11% 2.63%4gr 6378.78 2775.57 2639.07 1557.98 913.97 215.29 230.53 539.08 144.74 267.17 9,283 4gr 5.49% 5.4% 5.44% 5.0% 6.67% 5.9% 4.1% 5.15% 5.69% 4.13% 5.40%3gr 7361.76 3239.10 3259.26 1899.01 1125.18 212.42 241.59 591.51 157.28 321.60 11,047 3gr 6.34% 6.3% 6.71% 6.1% 8.22% 5.9% 4.3% 5.65% 6.18% 4.97% 6.43%+11 25291.47 10826.58 10388.27 6681.74 3350.77 711.59 907.40 1888.12 456.73 1032.29 36,243 +11 21.77% 21.3% 21.40% 21.6% 24.46% 19.6% 16.0% 18.03% 17.94% 15.96% 21.09%+9 21796.97 8542.14 8217.09 5593.50 2210.20 524.02 871.76 1659.81 361.44 948.16 28,928 +9 18.76% 16.9% 16.93% 18.1% 16.14% 14.5% 15.3% 15.85% 14.20% 14.66% 16.83%+7 13918.99 5505.78 5338.14 3646.60 1315.32 354.91 663.27 1113.18 253.23 700.26 18,891 +7 11.98% 11.0% 11.00% 11.8% 9.60% 9.8% 11.7% 10.63% 9.95% 10.82% 10.99%+5 15985.56 7404.01 7068.21 4530.90 1711.94 518.26 1139.08 1651.31 425.08 1306.62 25,755 +5 13.76% 15.7% 14.56% 14.6% 12.50% 14.3% 20.1% 15.77% 16.70% 20.20% 14.98%+3 3206.52 1534.66 1448.94 992.98 387.56 123.41 341.71 427.29 148.35 418.53 5,823 +3 2.76% 3.5% 2.98% 3.2% 2.83% 3.4% 6.0% 4.08% 5.83% 6.47% 3.39%-3 376.09 167.82 129.63 110.97 34.06 20.96 57.19 65.02 22.02 55.23 663 -3 0.32% 0.4% 0.27% 0.4% 0.25% 0.6% 1.0% 0.62% 0.87% 0.85% 0.39%Total 116194.52 49882.55 48547.59 30969.08 13696.19 3623.46 5680.72 10471.97 2545.55 6469.38 171,886 Total 100.00% 100.0% 100.00% 100.0% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%

VALUE % CONTRIBUTION VALUEValue US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ US$ Value %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$ %US$ US$Special 346,192$ 1,090,164$ 554,535$ 334,368$ 153,283$ 101,826$ 30,871$ 172,775$ 26,003$ 90,188$ 2,554,013$ Special 3.08% 22.0% 9.35% 9.6% 9.24% 19.2% 6.5% 16.04% 11.45% 16.80% 13.3%+10cts 133,984$ 110,005$ 111,395$ 9,382$ 22,649$ 57,038$ 12,437$ 75,961$ -$ -$ 398,867$ +10cts 1.19% 2.1% 1.88% 0.3% 1.36% 10.7% 2.6% 7.05% 0.00% 0.00% 2.1%+9cts 223,193$ 85,675$ 153,940$ 92,100$ 26,213$ 19,639$ 9,133$ 35,773$ -$ 2,079$ 424,551$ +9cts 1.98% 1.7% 2.60% 2.6% 1.58% 3.7% 1.9% 3.32% 0.00% 0.39% 2.2%+8cts 150,500$ 86,810$ 172,937$ 96,556$ 81,472$ 13,952$ 9,832$ 69,350$ 3,930$ 26,718$ 561,556$ +8cts 1.34% 1.9% 2.92% 2.8% 4.91% 2.6% 2.1% 6.44% 1.73% 4.98% 2.9%+7cts 324,089$ 142,036$ 272,046$ 147,203$ 47,841$ 37,204$ 11,866$ 23,415$ 2,917$ 18,435$ 702,963$ +7cts 2.88% 2.5% 4.59% 4.2% 2.88% 7.0% 2.5% 2.17% 1.28% 3.43% 3.7%+6cts 400,287$ 138,249$ 301,463$ 111,416$ 86,263$ 25,627$ 26,029$ 64,972$ -$ 23,704$ 777,722$ +6cts 3.56% 2.3% 5.08% 3.2% 5.20% 4.8% 5.5% 6.03% 0.00% 4.42% 4.1%+5cts 469,276$ 247,498$ 414,010$ 177,793$ 53,206$ 31,568$ 24,664$ 37,215$ 30,924$ 28,839$ 1,045,717$ +5cts 4.17% 4.8% 6.98% 5.1% 3.21% 5.9% 5.2% 3.46% 13.62% 5.37% 5.5%+4cts 637,860$ 315,532$ 334,324$ 247,197$ 89,396$ 23,105$ 31,612$ 74,271$ 9,697$ 39,791$ 1,164,925$ +4cts 5.67% 6.0% 5.64% 7.1% 5.39% 4.4% 6.7% 6.90% 4.27% 7.41% 6.1%+3cts 1,155,106$ 412,095$ 594,882$ 354,567$ 160,098$ 30,388$ 58,727$ 71,597$ 23,125$ 56,908$ 1,762,385$ +3cts 10.27% 7.4% 10.03% 10.2% 9.65% 5.7% 12.4% 6.65% 10.19% 10.60% 9.2%8gr 1,661,399$ 590,909$ 693,160$ 451,794$ 192,420$ 59,661$ 71,348$ 120,745$ 33,266$ 60,473$ 2,273,777$ 8gr 14.77% 10.9% 11.69% 13.0% 11.60% 11.2% 15.1% 11.21% 14.65% 11.27% 11.9%6gr 805,272$ 310,944$ 333,910$ 214,526$ 102,526$ 23,556$ 32,240$ 42,193$ 12,588$ 32,741$ 1,105,224$ 6gr 7.16% 6.1% 5.63% 6.2% 6.18% 4.4% 6.8% 3.92% 5.54% 6.10% 5.8%5gr 465,723$ 169,117$ 188,705$ 102,679$ 56,189$ 10,427$ 13,579$ 22,599$ 10,195$ 14,012$ 587,502$ 5gr 4.14% 3.2% 3.18% 2.9% 3.39% 2.0% 2.9% 2.10% 4.49% 2.61% 3.1%4gr 787,007$ 269,178$ 338,970$ 185,422$ 124,811$ 17,485$ 21,156$ 45,284$ 13,998$ 27,682$ 1,043,985$ 4gr 7.00% 5.1% 5.71% 5.3% 7.52% 3.3% 4.5% 4.20% 6.17% 5.16% 5.4%3gr 649,382$ 232,626$ 295,220$ 167,488$ 107,473$ 12,399$ 14,197$ 36,869$ 12,035$ 20,883$ 899,190$ 3gr 5.77% 4.3% 4.98% 4.8% 6.48% 2.3% 3.0% 3.42% 5.30% 3.89% 4.7%+11 1,320,822$ 495,158$ 549,085$ 359,192$ 182,186$ 29,555$ 36,122$ 78,482$ 21,832$ 37,232$ 1,788,845$ +11 11.74% 9.3% 9.26% 10.3% 10.98% 5.6% 7.6% 7.29% 9.62% 6.94% 9.3%+9 905,144$ 285,477$ 312,458$ 225,930$ 92,839$ 18,074$ 29,300$ 51,365$ 11,694$ 24,759$ 1,051,898$ +9 8.05% 5.4% 5.27% 6.5% 5.59% 3.4% 6.2% 4.77% 5.15% 4.61% 5.5%+7 430,961$ 138,922$ 165,348$ 103,625$ 42,681$ 8,281$ 16,469$ 27,861$ 6,624$ 14,610$ 524,422$ +7 3.83% 2.6% 2.79% 3.0% 2.57% 1.6% 3.5% 2.59% 2.92% 2.72% 2.7%+5 350,776$ 113,656$ 130,604$ 90,859$ 33,910$ 9,699$ 20,320$ 21,931$ 6,642$ 13,366$ 440,989$ +5 3.12% 2.3% 2.20% 2.6% 2.04% 1.8% 4.3% 2.04% 2.93% 2.49% 2.3%+3 32,065$ 15,347$ 14,489$ 9,930$ 3,876$ 1,222$ 3,383$ 4,273$ 1,484$ 4,185$ 58,188$ +3 0.29% 0.33% 0.24% 0.29% 0.23% 0.2% 0.7% 0.40% 0.65% 0.78% 0.3%-3 989$ 499$ 387$ 276$ 95$ 63$ 172$ 193$ 66$ 166$ 1,917$ -3 0.01% 0.01% 0.01% 0.01% 0.01% 0.0% 0.0% 0.02% 0.03% 0.03% 0.0%Total 11,250,028$ 5,249,899$ 5,931,868$ 3,482,301$ 1,659,429$ 530,767$ 473,456$ 1,077,125$ 227,019$ 536,771$ 19,168,636$ Total 100.00% 100.00% 100.00% 100.0% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%

PRICE PER CARATPPC US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ctSpecial 1,278.21$ 1,592.74$ 1,234.85$ 1,729.52$ 1,635.72$ 1,517.07$ 615.46$ 456.59$ 643.96$ 455.06$ 1,185.26$ +10cts 1,002.12$ 980.16$ 440.45$ 1,096.81$ 1,827.55$ 1,221.83$ #DIV/0! 1,101.20$ +9cts 1,000.87$ 762.64$ 930.04$ 1,429.23$ 2,012.14$ 1,012.50$ 559.22$ 215.00$ 918.03$ +8cts 759.18$ 505.89$ 990.99$ 974.63$ 1,375.98$ 569.45$ 393.42$ 926.02$ 500.00$ 530.02$ 817.36$ +7cts 731.00$ 846.56$ 933.39$ 1,014.28$ 841.83$ 879.11$ 763.11$ 408.14$ 198.54$ 514.37$ 850.05$ +6cts 636.54$ 656.33$ 912.72$ 471.30$ 693.49$ 813.04$ 602.66$ 1,017.57$ -$ 345.79$ 701.39$ +5cts 519.49$ 496.95$ 716.01$ 451.31$ 565.60$ 760.67$ 397.36$ 249.95$ 482.05$ 332.94$ 531.50$ +4cts 389.86$ 473.11$ 453.40$ 544.02$ 511.13$ 248.62$ 343.91$ 312.97$ 211.22$ 403.07$ 447.98$ +3cts 369.56$ 323.18$ 410.40$ 383.15$ 436.59$ 285.06$ 289.97$ 248.69$ 242.20$ 347.72$ 361.67$ 8gr 259.32$ 221.89$ 262.48$ 283.15$ 293.06$ 243.64$ 203.16$ 214.98$ 230.21$ 171.57$ 246.86$ 6gr 170.28$ 162.48$ 181.96$ 195.31$ 183.22$ 156.52$ 132.64$ 113.44$ 134.64$ 149.71$ 170.44$ 5gr 146.47$ 119.10$ 145.89$ 141.04$ 136.11$ 104.51$ 109.12$ 98.98$ 145.19$ 102.49$ 130.16$ 4gr 123.38$ 96.98$ 128.44$ 119.01$ 136.56$ 81.21$ 91.77$ 84.00$ 96.71$ 103.61$ 112.46$ 3gr 88.21$ 71.82$ 90.58$ 88.20$ 95.52$ 58.37$ 58.76$ 62.33$ 76.52$ 64.93$ 81.40$ +11 52.22$ 45.74$ 52.86$ 53.76$ 54.37$ 41.53$ 39.81$ 41.57$ 47.80$ 36.07$ 49.36$ +9 41.53$ 33.42$ 38.03$ 40.39$ 42.00$ 34.49$ 33.61$ 30.95$ 32.35$ 26.11$ 36.36$ +7 30.96$ 25.23$ 30.97$ 28.42$ 32.45$ 23.33$ 24.83$ 25.03$ 26.16$ 20.86$ 27.76$ +5 21.94$ 15.35$ 18.48$ 20.05$ 19.81$ 18.71$ 17.84$ 13.28$ 15.63$ 10.23$ 17.12$ +3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 9.90$ 9.90$ 10.00$ 10.00$ 10.00$ 9.99$ -3 2.63$ 2.98$ 2.99$ 2.48$ 2.80$ 3.00$ 3.00$ 2.97$ 3.00$ 3.00$ 2.89$ Av PPC 96.82$ 105.25$ 122.19$ 112.44$ 121.16$ 146.48$ 83.34$ 102.86$ 89.18$ 82.97$ 111.52$

TABLE 5.49: PIPE SUMMARY Production and Valuation

TABLE 5.50: Value per Carat by Pipe

112

99.76

133.93

110.52

121.42

105.9

90.27

101109.94

95.74

140

0

20

40

60

80

100

120

140

160

Ywain

Excali

burLau

nfal N

orth

Launfal

Sacram

orePalo

mides

Gareth

Tails (

MR)

Kay

Ector

Gawain

US$

per

car

at

Quality Effect ‐ All sizes have been ignoredVolume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 122 180 77 172 121 85 429 136 186 416 105 32 Z 1,975 4,197 2,929 3,503 3,231 2,047 2,325 3,119 1,637 1,906 1,889 1,707 MB 2,520 6,742 5,131 6,513 6,517 3,612 3,900 4,599 2,648 3,077 2,952 2,133 MBCL 3,085 8,204 7,712 9,128 8,002 3,937 4,695 6,917 4,177 4,629 3,589 3,350 CL 6,863 13,446 14,211 13,782 16,044 7,504 10,694 15,276 6,061 7,570 5,113 6,064 Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 136,039 165,865 45,780 228,123 256,905 143,296 252,929 200,554 291,436 644,180 156,052 8,570 Z 811,391 1,607,554 1,061,741 1,498,975 1,267,795 948,646 876,171 1,157,211 657,099 697,678 680,610 595,710 MB 501,524 1,264,778 938,417 1,214,725 1,022,422 701,063 519,936 751,281 468,335 493,510 435,487 380,672 MBCL 179,136 537,435 514,238 549,675 452,804 243,321 237,187 395,151 233,851 266,101 189,353 183,509 CL 118,705 242,259 235,139 227,360 218,028 107,498 156,535 215,839 86,024 112,346 84,894 95,418 Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$

Price Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1,119.01$ 920.09$ 594.31$ 1,329.31$ 2,121.78$ 1,692.40$ 589.13$ 1,476.18$ 1,567.37$ 1,548.96$ 1,487.91$ 268.39$ Z 410.91$ 383.02$ 362.52$ 427.89$ 392.45$ 463.45$ 376.78$ 371.00$ 401.29$ 366.11$ 360.29$ 349.05$ MB 198.98$ 187.60$ 182.91$ 186.50$ 156.90$ 194.07$ 133.31$ 163.36$ 176.89$ 160.37$ 147.52$ 178.45$ MBCL 58.06$ 65.51$ 66.68$ 60.22$ 56.59$ 61.80$ 50.52$ 57.13$ 55.98$ 57.49$ 52.75$ 54.78$ CL 17.30$ 18.02$ 16.55$ 16.50$ 13.59$ 14.32$ 14.64$ 14.13$ 14.19$ 14.84$ 16.60$ 15.73$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1% 1% 0% 1% 0% 0% 2% 0% 1% 2% 1% 0%Z 14% 13% 10% 11% 10% 12% 11% 10% 11% 11% 14% 13%MB 17% 21% 17% 20% 19% 21% 18% 15% 18% 17% 22% 16%MBCL 21% 25% 26% 28% 24% 23% 21% 23% 28% 26% 26% 25%CL 47% 41% 47% 42% 47% 44% 49% 51% 41% 43% 37% 46%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 9.34$ 5.06$ 1.52$ 6.89$ 7.58$ 8.34$ 11.47$ 6.67$ 19.81$ 36.61$ 11.43$ 0.65$ Z 55.71$ 49.06$ 35.32$ 45.29$ 37.38$ 55.20$ 39.75$ 38.51$ 44.67$ 39.65$ 49.87$ 44.84$ MB 34.43$ 38.60$ 31.22$ 36.70$ 30.15$ 40.79$ 23.59$ 25.00$ 31.84$ 28.04$ 31.91$ 28.65$ MBCL 12.30$ 16.40$ 17.11$ 16.61$ 13.35$ 14.16$ 10.76$ 13.15$ 15.90$ 15.12$ 13.87$ 13.81$ CL 8.15$ 7.39$ 7.82$ 6.87$ 6.43$ 6.26$ 7.10$ 7.18$ 5.85$ 6.38$ 6.22$ 7.18$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

TABLE 5.51: All Pipes by Quality

TABLE 5.52: All Pipes by Colour

Colour Effect ‐ All sizes have been ignoredVolume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 122 180 77 172 121 85 429 136 186 416 105 32 White 7,135 18,273 18,699 18,968 21,742 10,235 10,453 15,622 6,953 7,124 7,493 6,922 Col'd 912 2,502 2,123 2,987 1,828 862 1,134 1,941 1,375 1,628 1,446 1,075 Brn 6,397 11,815 9,160 10,970 10,223 6,004 10,027 12,349 6,196 8,430 4,605 5,257 Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 136,039 165,865 45,780 228,123 256,905 143,296 252,929 200,554 291,436 644,180 156,052 8,570 White 1,143,822 2,564,974 1,979,555 2,410,861 2,217,465 1,490,686 1,189,312 1,711,074 883,421 963,065 863,052 753,198 Col'd 298,047 735,855 551,965 766,295 493,652 322,608 312,757 519,306 373,783 370,615 382,181 362,139 Brn 168,888 351,197 218,016 313,580 249,931 187,233 287,759 289,101 188,106 235,956 145,112 139,973 Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$

Price Nov-99 Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02Spec 1,119.01$ 920.09$ 594.31$ 1,329.31$ 2,121.78$ 1,692.40$ 589.13$ 1,476.18$ 1,567.37$ 1,548.96$ 1,487.91$ 268.39$ White 160.31$ 140.37$ 105.86$ 127.10$ 101.99$ 145.64$ 113.78$ 109.53$ 127.06$ 135.20$ 115.18$ 108.81$ Col'd 326.76$ 294.08$ 260.00$ 256.50$ 270.08$ 374.28$ 275.74$ 267.61$ 271.84$ 227.71$ 264.36$ 336.86$ Brn 26.40$ 29.72$ 23.80$ 28.58$ 24.45$ 31.19$ 28.70$ 23.41$ 30.36$ 27.99$ 31.51$ 26.63$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1% 1% 0% 1% 0% 0% 2% 0% 1% 2% 1% 0%White 49% 56% 62% 57% 64% 60% 47% 52% 47% 40% 55% 52%Col'd 6% 8% 7% 9% 5% 5% 5% 6% 9% 9% 11% 8%Brn 44% 36% 30% 33% 30% 35% 45% 41% 42% 48% 34% 40%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 9.34$ 5.06$ 1.52$ 6.89$ 7.58$ 8.34$ 11.47$ 6.67$ 19.81$ 36.61$ 11.43$ 0.65$ White 78.53$ 78.27$ 65.86$ 72.84$ 65.39$ 86.74$ 53.95$ 56.95$ 60.06$ 54.73$ 63.23$ 56.69$ Col'd 20.46$ 22.46$ 18.36$ 23.15$ 14.56$ 18.77$ 14.19$ 17.28$ 25.41$ 21.06$ 28.00$ 27.26$ Brn 11.60$ 10.72$ 7.25$ 9.47$ 7.37$ 10.89$ 13.05$ 9.62$ 12.79$ 13.41$ 10.63$ 10.54$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

TABLE 5.53: Pipes by Sale

Volume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 3,605 2,660 ‐ ‐ 825 8,185 5,521 3,973 7,457 1,608 4,332 2,651 5,341 55 ‐ ‐ Palomides 8,416 3,429 ‐ 272 ‐ ‐ ‐ 15,839 6,973 9,801 104 2,807 12,899 67 ‐ ‐ Excalibur ‐ 26,681 30,059 21,368 21,154 271 6,371 10,067 225 ‐ ‐ ‐ ‐ ‐ ‐ ‐ Kay ‐ ‐ ‐ ‐ ‐ ‐ 5,150 81 55 1,453 906 ‐ ‐ 1,796 ‐ ‐ Gareth ‐ ‐ ‐ ‐ ‐ 1,699 3,471 ‐ ‐ 769 ‐ 531 16,590 5,166 ‐ ‐ Launfal 2,544 ‐ ‐ 8,088 2,907 3,909 ‐ ‐ ‐ ‐ 4,525 4,331 99 ‐ ‐ ‐ Launfal North - - - 3,371 3,227 2,438 - - - - 2,512 2,149 - - - - Ywain - - - - - 393 - - - - - - - - - 5,681 Gawain - - - - - - - - - 311 - - - - 3,623 - Ector - - - - - - 1,458 - - 1,088 - - 3,378 7,945 - - Tailings(MR) - - - - 5,800 291 73 88 - 2,567 1,271 818 2,485 7,097 - - Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286 40,793 22,126 3,623 5,681

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 628,775 323,667 - - 192,885 889,114 593,904 453,161 985,873 176,361 468,388 290,201 521,359 1,899 - - Palomides 753,902 423,501 - 54,783 - - - 1,432,635 738,751 1,364,977 7,032 259,993 987,377 1,638 - - Excalibur - 3,070,723 2,795,316 2,472,535 1,990,977 62,546 516,159 811,258 8,187 - - - - - - - Kay - - - - - - 576,740 2,341 3,934 196,770 70,931 - - 102,104 - - Gareth - - - - - 306,770 194,430 - - 54,681 - 33,016 1,158,595 221,120 - - Launfal 364,118 - - 588,413 260,456 542,481 - - - - 700,051 474,043 3,041 - - - Launfal North - - - 603,128 503,849 231,313 - - - - 227,260 152,735 - - - - Ywain - - - - - 13,924 - - - - - - - - - 473,456 Gawain - - - - - - - - - 24,916 - - - - 530,767 - Ector - - - - - - 119,527 - - 119,109 - - 285,317 841,660 - - Tailings(MR) - - - - 269,787 97,676 41,998 20,641 - 277,003 72,737 53,891 179,908 608,903 - - Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$ 3,135,597$ 1,777,325$ 530,767$ 473,456$

Price Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 174.41$ 121.67$ -$ -$ 233.83$ 108.63$ 107.58$ 114.06$ 132.22$ 109.66$ 108.14$ 109.48$ 97.61$ 34.22$ -$ -$ Palomides 89.57$ 123.51$ -$ 201.65$ -$ -$ -$ 90.45$ 105.94$ 139.27$ 67.83$ 92.62$ 76.54$ 24.57$ -$ -$ Excalibur -$ 115.09$ 92.99$ 115.71$ 94.12$ 231.20$ 81.02$ 80.59$ 36.47$ -$ -$ -$ -$ -$ -$ -$ Kay -$ -$ -$ -$ -$ -$ 111.98$ 29.02$ 71.31$ 135.46$ 78.26$ -$ -$ 56.85$ -$ -$ Gareth -$ -$ -$ -$ -$ 180.56$ 56.02$ -$ -$ 71.11$ -$ 62.22$ 69.84$ 42.80$ -$ -$ Launfal 143.13$ -$ -$ 72.75$ 89.59$ 138.77$ -$ -$ -$ -$ 154.71$ 109.46$ 30.83$ -$ -$ -$ Launfal North -$ -$ -$ 178.92$ 156.14$ 94.88$ -$ -$ -$ -$ 90.48$ 71.09$ -$ -$ -$ -$ Ywain -$ -$ -$ -$ -$ 35.39$ -$ -$ -$ -$ -$ -$ -$ -$ -$ 83.34$ Gawain -$ -$ -$ -$ -$ -$ -$ -$ -$ 80.06$ -$ -$ -$ -$ 146.48$ -$ Ector -$ -$ -$ -$ -$ -$ 82.00$ -$ -$ 109.48$ -$ -$ 84.47$ 105.94$ -$ -$ Tailings(MR) -$ -$ -$ -$ 46.51$ 335.94$ 572.57$ 235.04$ -$ 107.90$ 57.24$ 65.86$ 72.39$ 85.80$ -$ -$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$ 76.87$ 80.33$ 146.50$ -$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 25% 8% 0% 0% 2% 48% 25% 13% 51% 9% 32% 20% 13% 0% 0% 0%Palomides 58% 10% 0% 1% 0% 0% 0% 53% 47% 56% 1% 21% 32% 0% 0% 0%Excalibur 0% 81% 100% 65% 62% 2% 29% 34% 2% 0% 0% 0% 0% 0% 0% 0%Kay 0% 0% 0% 0% 0% 0% 23% 0% 0% 8% 7% 0% 0% 8% 0% 0%Gareth 0% 0% 0% 0% 0% 10% 16% 0% 0% 4% 0% 4% 41% 23% 0% 0%Launfal 17% 0% 0% 24% 9% 23% 0% 0% 0% 0% 33% 33% 0% 0% 0% 0%Launfal North 0% 0% 0% 10% 10% 14% 0% 0% 0% 0% 18% 16% 0% 0% 0% 0%Ywain 0% 0% 0% 0% 0% 2% 0% 0% 0% 0% 0% 0% 0% 0% 0% 100%Gawain 0% 0% 0% 0% 0% 0% 0% 0% 0% 2% 0% 0% 0% 0% 100% 0%Ector 0% 0% 0% 0% 0% 0% 7% 0% 0% 6% 0% 0% 8% 36% 0% 0%Tailings(MR) 0% 0% 0% 0% 17% 2% 0% 0% 0% 15% 9% 6% 6% 32% 0% 0%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 43.17$ 9.88$ -$ -$ 5.69$ 51.74$ 26.94$ 15.08$ 67.02$ 10.02$ 34.32$ 21.84$ 12.78$ 0.09$ -$ -$ Palomides 51.76$ 12.92$ -$ 1.66$ -$ -$ -$ 47.68$ 50.22$ 77.57$ 0.52$ 19.57$ 24.20$ 0.07$ -$ -$ Excalibur -$ 93.70$ 92.99$ 74.70$ 58.71$ 3.64$ 23.42$ 27.00$ 0.56$ -$ -$ -$ -$ -$ -$ -$ Kay -$ -$ -$ -$ -$ -$ 26.16$ 0.08$ 0.27$ 11.18$ 5.20$ -$ -$ 4.61$ -$ -$ Gareth -$ -$ -$ -$ -$ 17.85$ 8.82$ -$ -$ 3.11$ -$ 2.48$ 28.40$ 9.99$ -$ -$ Launfal 25.00$ -$ -$ 17.78$ 7.68$ 31.57$ -$ -$ -$ -$ 51.29$ 35.68$ 0.07$ -$ -$ -$ Launfal North -$ -$ -$ 18.22$ 14.86$ 13.46$ -$ -$ -$ -$ 16.65$ 11.50$ -$ -$ -$ -$ Ywain -$ -$ -$ -$ -$ 0.81$ -$ -$ -$ -$ -$ -$ -$ -$ -$ 83.34$ Gawain -$ -$ -$ -$ -$ -$ -$ -$ -$ 1.42$ -$ -$ -$ -$ 146.50$ -$ Ector -$ -$ -$ -$ -$ -$ 5.42$ -$ -$ 6.77$ -$ -$ 6.99$ 38.04$ -$ -$ Tailings(MR) -$ -$ -$ -$ 7.96$ 5.68$ 1.91$ 0.69$ -$ 15.74$ 5.33$ 4.06$ 4.41$ 27.52$ -$ -$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$ 76.87$ 80.33$ 146.50$ 83.34$

% Weight Contribution by PipeSept '99 - Jan '02

Sep-99 Oct-99 Nov-99 Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02Sacramore 32.8% 57.3% 24.8% 8.1% - - 2.4% 47.6% 25.0% 13.2% 50.7% 9.1% 31.7% 20.0%Palomides - 35.8% 57.8% 10.5% - 0.8% - - - 52.7% 47.4% 55.7% 0.8% 21.1%Excalibur - - - 81.4% 100.0% 64.6% 62.4% 1.6% 28.9% 33.5% 1.5% - - -

Kay 22.4% - - - - - - - 23.4% 0.3% 0.4% 8.3% 6.6% -Gareth - 6.9% - - - - - 9.9% 15.7% - - 4.4% - 4.0%Launfal 37.0% - 17.5% - - 24.4% 8.6% 22.7% - - - - 33.1% 32.6%

Launfal North - - - - - 10.2% 9.5% 14.2% - - - - 18.4% 16.2%Ywain - - - - - - - 2.3% - - - - - -Ector - - - - - - - - 6.6% - - 6.2% - -

Tailings(MR) 7.9% - - - - - 17.1% 1.7% 0.3% 0.3% - 14.6% 9.3% 6.2%Gwain - - - - - - - - - - - 1.8% - -Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

% Value Contribution by PipeSept '99 - Jan '02



Launfal North - - - - 17.0% 14.9% 10.6% - - - - 15.0% 12.8%Ywain - - - - - - - 0.6% - - - - - -Ector - - - - - - - - 5.6% - - 5.4% - -


Average $/ct by Pipe(Actual Prices inc.RSVP on Specials)

Sept '99 - Jan '02

Sep-99 Oct-99 Nov-99 Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02Average

Total/PipeSacramore 156.23 142.66 167.72 124.45 - - 229.76 101.65 104.77 102.85 125.40 111.30 102.28 102.19 122.19Palomides - 144.51 91.63 118.96 - 141.89 - - - 84.11 105.81 138.77 68.06 96.58 105.25Excalibur - - - 111.86 90.30 109.31 88.69 225.47 74.99 78.57 41.30 - - - 96.82

Kay 77.29 - - - - - - - 114.79 24.36 76.40 130.01 79.89 - 102.86Gareth - 39.95 - - - - - 160.74 51.27 - - 66.63 - 65.00 80.27Launfal 149.72 - 121.85 - - 72.35 91.34 126.92 - - - - 152.57 100.82 112.44

Launfal North - - - - - 179.37 143.23 85.56 - - - - 90.34 73.11 143.70Ywain - - - - - - - 32.45 - - - - - - 32.45Ector - - - - - - - - 75.27 - - 107.83 - - 89.18

Tailings(MR) 118.18 - - - - - 52.02 282.77 526.68 227.27 - 97.40 56.21 67.35 78.68Gwain - - - - - - - - - - - 82.51 - - 82.51

Shipment $/ct 133.15 136.21 115.74 113.63 90.30 107.68 91.29 114.39 89.53 84.99 114.65 123.44 110.72 92.23 104.97

Significant Changes in ProcessPre - Sept '99 Different Assortments

Nov '99 Colour Assortments were introduced eg. Z1/4 White previously just Z1/4No Specials descriptions were reported

Aug '00 Change in mm sizes for smalls - (+5,+3,-3) more product captured

May '01 Change in process - all goods reported on the MDS SystemNew Pricebook GeneratedNew Sample created

Oct '01 New Sample re-aligned to Argyle/DDMI/GVS assortmentsThese Sale goods used for the re-mapping exercise

Dec '01 All goods are now being sorted on the new sorting line - as per the above re-alignment

TABLE 5.54: Merlin Summary

Approximate CumulativeDATE IN EXCALIBUR PALOMIDES SACRAMORE LAUNFAL LAUNFAL NTH GAWAIN YWAIN KAYE ECTOR GARETH TAILS Sale Volume Sales VolumeADS#1 ‐ May 99 347.28 5367.26 5783.13 11497.67 11497.67ADS#2 ‐ 7 June 1999 0 3902.41 3825.82 7728.23 19225.9ADS#3 ‐ 14 July 1999 5443.43 4559.03 1960.2 1484.01 13446.67 32672.57ADS#4 ‐ Sept / Oct 1999 0 0 4133.51 4814.24 0 0 48.58 2826.19 0 794.3 12616.82 45289.39ADS#5 ‐ Nov / Dec 1999 0 10474.49 7201.95 2727.34 0 0 0 0 0 433.84 0 20837.62 66127.01ADS#6 ‐ 28 Feb 2000 26682.38 3429.99 2660.05 0 0 0 0 0 0 0 32772.42 98899.43ADS#7 ‐ 8 May 2000 30061.07 0 0 0 0 0 0 0 0 0 30061.07 128960.5ADS#8 ‐ 12 July 2000 21322.09 271.3 0 8088.36 3365.67 0 0 0 0 0 33047.42 162007.92ADS#9 ‐ 23 Aug 2000 21154.7 0 831.44 2908.07 3227.13 0 0 0 0 5801.3 33922.64 195930.56ADS#10 ‐ 2 Oct 2000 384.56 0 10555.95 3910.18 2438.76 0 393.48 0 1731.95 290.66 19705.54 215636.1ADS#11 ‐ 29 Nov 2000 6256.11 0 3151.49 0 0 0 0 5152.61 1456.61 3440.7 73.36 19530.88 235166.98ADS#12 ‐ 2001 10068.46 15840.96 3973.89 0 0 0 0 80.73 0 0 88.06 30052.1 265219.08ADS#13 ‐ 2001 224.78 6978.94 7459.65 0 0 0 0 55.49 0 0 0 14718.86 279937.94ADS#14 ‐ 2001 0 9772.91 368.77 0 0 311.44 0 1256.82 1088.45 769.45 1773.03 15340.87 295278.81ADS#15 ‐ 2001 0 133.62 5570.8 4524.16 2512.17 0 0 1103.89 0 0 2066.78 15911.42 311190.23ADS#16 ‐ 2002 2808.83 2651.8 4332.51 2149.52 0 0 0 529.91 818.76 13291.33 324481.56ADS#17 ‐ 2002 0 12902.05 5338.79 99.51 0 0 0 0 3336.24 14551.21 1369.06 37596.86 362078.42ADS#18 ‐ 2002 0 66.73 55.65 0 0 0 0 1796.14 7990.8 7210.99 8216.67 25336.98 387415.4ADS#19 ‐ 2003 874.1 434.61 2660.33 21507.88 4485.01 35492.67 6165.55 8092.83 5184.5 18273.9 16849.5 120020.88 507436.28

122818.96 67016.84 61981.33 67080.23 18178.26 35804.11 8567.81 20364.7 19056.6 46941.95 39625.49 507436.28

TABLE 5.55: DIAMOND EXPORTS 1999 - 2003

TABLE 5.56: Pal/Sac LDC Drilling Programme 2001

DHID RL RL Group Sample Weight Lithology Total Total GRADE(metres) (metres) No. (kg) -3 +3 +5 +7 +9 +11 +12 +13 +15 +17 +19 +21 (stones) -3 +3 +5 +7 +9 +11 +12 +13 +15 +17 19 21 (carats) cpht

LDC-001 91 90 1.1 1,310.5 PLVKB1 2 1 3 0.425 0.485 0.910 LDC-002 90 90 2.1 1,444.0 PLVKB1 - - LDC-003 91 90 3.1 1,199.0 PLVKB1 1 1 2 0.040 0.080 0.120 LDC-004 90 90 4.1 1,376.0 PLVKB1 1 1 0.110 0.110 LDC-005 91 90 5.1 1,520.5 PLVKB1 - - LDC-009 84 90 9.1 1,026.5 VK1/PLVKB1 2 1 3 0.060 0.060 0.120 TOTAL 7,876.5 9 1.260 16.00

LDC-001 71 70 1.2 1,371.0 PLVKB1 - - LDC-002 71 70 2.2 1,415.5 PLVKB1 1 1 2 0.040 0.905 0.945 LDC-003 71 70 3.2 1,205.5 PLVKB1/VK1 2 11 10 1 24 0.020 0.750 0.840 0.160 1.770 LDC-004 71 70 4.2 1,403.0 PLVKB1 - - LDC-005 71 70 5.2 1,428.0 PLVKB1 1 1 2 0.030 3.850 3.880 LDC-006 61 70 6.1 173.0 PLVKB1 1 1 2 0.005 0.040 0.045 LDC-007 70 70 7.1 1,693.5 PLVKB1 1 1 2 0.060 1.030 1.090 LDC-009 64 70 9.2 1,576.5 PLVKB1 - - LDC-011 63 70 11.1 637.0 PLVKB1 1 1 0.190 0.190 LDC-012 64 70 12.1 721.0 PLVKB1 - - LDC-009a 64 70 9A1 1,488.5 VK1/PLVKB1 1 1 2 0.420 0.410 0.830

TOTAL 13,112.5 35 8.750 66.73021926

LDC-001 51 50 1.3 1,394.5 PLVKB1 - - LDC-002 51 50 2.3 1,463.5 PLVKB1 1 1 1 3 0.045 0.065 0.225 0.335 LDC-003 51 50 3.3 1,344.5 VK1 - - LDC-004 51 50 4.3 1,491.5 PLVKB1 1 1 0.040 0.040 LDC-005 51 50 5.3 1,526.5 PLVKB1 - - LDC-006 50 50 6.2 1,484.0 PLVKB1 - - LDC-007 50 50 7.2 1,485.5 PLVKB1 1 1 0.470 0.470 LDC-011 49 50 11.2 1,477.0 PLVKB1 - - LDC-012 50 50 12.2 1,458.0 PLVKB1 - - LDC-009a 43 50 9A2 1,470.5 PLVKB1 1 1 0.410 0.410

TOTAL 14,595.5 6 1.255 8.598540646

LDC-001 31 30 1.4 1,489.0 PLVKB1 - - LDC-002 31 30 2.4 1,525.0 PLVKB1 - - LDC-003 31 30 3.4 1,377.5 PLVKB1 1 1 0.290 0.290 LDC-004 31 30 4.4 1,440.0 PLVKB1/VK1 1 1 1 3 0.065 0.100 0.220 0.385 LDC-005 31 30 5.4 1,478.5 VK1 1 1 2 0.070 1.585 1.655 LDC-006 30 30 6.3 1,467.5 PLVKB1 - - LDC-007 30 30 7.3 1,522.0 PLVKB1 1 1 0.075 0.075 LDC-011 29 30 11.3 1,473.5 PLVKB1 - - LDC-012 30 30 12.3 1,565.5 PLVKB1 - - LDC-009a 23 30 9A3 1,584.5 PLVKB1 1 1 1 3 0.040 0.030 0.120 0.190

TOTAL 14,923.0 10 2.595 17.38926489

LDC-001 11 10 1.5 1,456.0 PLVKB1/VK1/mPVK1 1 1 2 0.040 2.550 2.590 LDC-002 12 10 2.5 1,394.0 PLVKB1 2 2 0.110 0.110 LDC-003 11 10 3.5 1,509.5 PLVKB1 1 1 0.100 0.100 LDC-004 11 10 4.5 1,466.5 VK1 2 1 2 5 0.130 0.140 0.320 0.590 LDC-005 12 10 5.5 1,496.0 VK1/PLVKB1 1 1 0.220 0.220 LDC-006 11 10 6.4 1,509.5 VK1 1 1 1 3 0.030 0.015 0.050 0.095 LDC-007 10 10 7.4 1,566.5 PLVKB1 - - LDC-011 9 10 11.4 1,507.5 PLVKB1 - - LDC-012 11 10 12.4 1,519.0 PLVKB1 1 1 0.050 0.050 TOTAL 13,424.5 15 3.755 27.9712466

LDC-002 -8 -10 2.6 1,456.0 PLVKB1 2 2 0.080 0.080 LDC-003 -9 -10 3.6 1,398.0 mPVK1 1 1 1 3 0.005 0.040 0.030 0.075 LDC-005 -6 -10 5.6 1,554.0 PLVKB1 - - LDC-006 -9 -10 6.5 1,572.5 VK1 - - LDC-011 -11 -10 11.5 1,552.0 PLVKB1 - - LDC-012 -9 -10 12.5 1,509.0 PLVKB1 1 1 2 0.090 0.140 0.230 TOTAL 9,041.5 7 0.385 4.258161846

LDC-003 -29 -30 3.7 1,508.5 mPVK1 1 1 0.220 0.220 TOTAL 1,508.5 1 0.220 14.58402386

TOTAL 60 148,963.9 2 12 28 18 11 6 1 2 - 2 - 1 166 0.035 0.360 1.600 1.580 2.245 1.995 0.485 1.935 - 4.135 - 3.850 36.440

Numbers of Diamonds Recovered per Size Class Weight Diamonds Recovered per Size Class (carats)

846 tonnesBulk Sample Bulk Sample 384.55 BCM

DTC 270D 150D Comb Weight St Adjusted St ST/BCM Log St/BCM+23 0 0 0 Special+21 3.435 11.12 14.555 +10+19 0 7.34 7.34 +9+17 1.47 5.695 7.165 +8 1 1 0.0026 ‐2.5849+15 1.155 10.78 11.935 +7+13 4.39 16.075 20.465 +6+12 1.19 7.15 8.34 +5 1 1 0.0026 ‐2.5849+11 6.36 15.34 21.7 +4+9 7.91 20.065 27.975 +3 1 1 0.0026 ‐2.5849+7 5.05 13.605 18.655 +2 4 4 0.0104 ‐1.9829+5 6.405 14.1 20.505 +1 16 16 0.0416 ‐1.3808+3 1.795 4.495 6.29 +.66 14 14 0.0364 ‐1.4388‐3 Total Cts 0.145 46.155 46.3 +11 109 109 0.2835 ‐0.5475

Total 211.23 39.305 171.92 211.225 +9 141 141 0.3667 ‐0.4357+7 162 162 0.4213 ‐0.3754+5 307 307 0.7983 ‐0.0978

Bulk Sample Bulk Sample +3 194 194 0.5045 ‐0.2971DTC 270D 150D Comb -3 4038 80 10.5007 1.0212+23 0 0 0 Total 4988 1030 12.97+21 1 4 5+19 0 3 3 This is an erroneous result+17 2 4 6+15 2 9 11+13 7 24 31+12 4 15 19+11 23 48 71+9 39 102 141+7 50 112 162+5 102 205 307+3 51 143 194‐3 Total Count 8 4030 4038

Total 4,988.00 289 4699 4988

Table 5.57 : PalSac Bulk Sample RIO 2002

Combined

45

6 NADL TRIAL MINING AND EVALUATION 2005-2011

6.1 Introduction After acquiring the Merlin project in late 2004, NADL commenced a systematic re-evaluation of the diamond field, initially investigating liberation and recovery issues both known to be concerns during the previous RIO/Ashton mining operations. 6.2 Resource Upgrade 6.2.1 Resource Upgrade 2005 The resources at Merlin are divided into two categories, primary ore beneath the open pits and tailings and reject resources remaining from the initial mining operations. Following a drilling program in 2005 the Merlin resources were upgraded as follows; Table 6.1 Merlin Primary Resource 2005

Indicated Inferred Total Grade* Carats Southern Cluster PalSac 4,015,000t 2,713,000t 6,728,000t @ 20cpht 1,345,600 Launfal 730,000t 510,000t 1,240,000t @ 21cpht 260,400 Excalibur 464,000t 309,000t 773,000t @ 34cpht 262,820 Tristam 410,000t 410,000t @ 18cpht 73,800 9,151,000t @ 21.2cpht 1,942,620cts Central Cluster Gawain 868,000t 1,252,000t 2,120,000t @ 34cpht 720,800 Ywain 68,000t 105,000t 173,000t @ 60cpht 103,800 2,293,000t @ 32.3cpht 824,600cts Northern Cluster Gareth 125,000t 143,000t 268,000t @ 22cpht 58,960 Kaye 1,498,000t 1,335,000t 2,833,000t @ 9cpht 254,970 Ector 2,357,000t 2,221,000t 4,578,000t @ 7cpht 320,460 7,679,000t @ 8.3cpht 634,000cts Total 19,123,000 17.8cpht 3,400,000

*Reassessed mining grades reported at mine closure The reject ore resources comprise the sorthouse tailings, sizer rejects and trommel oversize material variously stockpiled at surface. Volumes have been calculated from survey data while the grades are based on limited bulk sample test results. Details are as follows; Table 6.2 Reject Ore and Tailings Resources

Type of Resource BCM Tonnes Grade Cts/t Carats Sizer rejects 60,000 72,000 0.18 13,500 Trommel oversize 220,000 264,000 0.10 26,400 Cyclone floats 125,000 175,000 0.11 19,250 Sorthouse tails 1,000 3,000 4.50 13,500 Slime Tailing Dam 1,000,000 1,500,000 n/a n/a TOTAL 1,421,000# 2,014,000 72,650 Mined 1,116,391^ 2,237,447* 507,000

*wet tonnes = 2, 013,700 dry tonnes (10% moisture) #loose BCM ^insitu BCM

46

6.2.2 Resource Upgrade 2008 The 2007/2008 resource drilling allowed a significant upgrade to the PalSac and Gawain resource. This is summarised in Table 6.3; Table 6.3 Merlin Primary Resource 2008

Pipe Indicated Inferred Total Grade* Carats Southern Cluster

PalSac 5,223,000t 3,951,000t 9,174,000t @ 20cpht 1,834,800 Launfal 730,000t 510,000t 1,240,000t @ 21cpht 260,400 Excalibur 464,000t 309,000t 773,000t @ 34cpht 262,820 Tristam 410,000t 410,000t @ 6cpht 24,600 11,597,000t @ 20.5cpht 2,382,620cts

Central Cluster Gawain 868,000t 1,252,000t 2,120,000t @ 34cpht 720,800 Ywain 68,000t 105,000t 173,000t @ 60cpht 2,293,000t @ 32.3cpht 740,000cts

Northern Cluster Gareth 125,000t 143,000t 268,000t @ 22cpht 58,960 Kaye 1,498,000t 1,335,000t 2,833,000t @ 13cpht 368,290 Ector 2,357,000t 2,221,000t 4,578,000t @ 7cpht 320,460 7,679,000t @ 8.3cpht 747,710cts Total 21,569,000 17.9cpht 3,870,000

*Reassessed mining grades reported at mine closure 6.3 Sorthouse Tailings Diamonds 6.3.1 Non-Fluorescing Diamonds On the closure of the mining operations the sorthouse tailings which were known to contain diamonds were deposited within Ywain openpit, to subsequently become submerged when the pit became filled with water. The knowledge that the x-ray sorting machine was not recovering all of the diamonds prompted the testing of Merlin diamonds for their fluorescing characteristics. FTIRS (Fourier Transform Infra-red Spectrometry) and X-Ray fluorescence studies on an assortment of previously hand recovered ROM Merlin diamonds resulted in the identification of a population of good shaped non-fluorescing diamonds. This population is calculated to represent 8% of the Merlin diamond population. These diamonds would not be recoverable using x-ray fluorescent sorting techniques. A further 6.5% of the diamonds were found to have very low fluorescence characteristics and as such would also not necessarily be recovered by x-ray fluorescent sorting techniques. (Glass and Taylor, 2005).

The sorthouse diamond losses cannot be easily quantified, apart from the testing of the tailings and it is likely some of the quantified diamond losses attributed to poor liberation are also contained in the sorthouse tailings. The non fluorescing diamonds cannot be quantified in terms of quantity or value from the available data sets as they are never recovered and are hence not a part of the known diamond population. Results from the testing of the diamonds recovered from the tailings revealed 102 of the 255 diamonds were unrecoverable by x-ray fluorescent techniques. This represents 40% of the diamonds tested, or a tailings grade of 360cpht. This would represent about 5% of the total diamond population, and is consistent with previous tests which revealed 8% of the diamond population was non-fluorescent. The diamonds that are recoverable would form part of the non liberated population. The results of the test samples are as follows;

47

Table 6.4: Sorthouse Rejects Samples

Sample Weight tonnes No of Diamonds Carats Carats/tonne 05-001-001 0.183 52 3.411 18.64 05-001-002 2.557 207 13.286 5.2 *NADL internal Job Report 05-001

6.3.2 Recovery of Sorthouse Reject Diamonds

Reprocessing of the sorthouse tailings commenced in mid 2005 and continued through to early 2006. Recovery of the diamonds was achieved by size classification followed by magnetic separation for the fine size fractions and optical sorting for the large size fraction.

Fig. 6.1 Reprocessing of Sorthouse Tailings

From the 8th August to 30th November some 2,600 tonne of material was processed and in excess of 12,000 carats were recovered from the sorthouse tailings. Processing continued intermittently in 2006 resulting in a further 1,442 carats being recovered from 761 tonnes. A summary of diamond recoveries is shown in the Table 6.5 below. The largest diamonds recovered were 17.19cts, 14.21cts, 10.97cts and 10.27cts. The -4mm +1mm size fraction produced 167,008 diamonds. The overall grade was in the order of 450cpht. Table 6.5 Merlin Sorthouse Rejects Diamond Fortnightly Recovery

Carats Recovered Fortnight Ending

Processed Tonnes -25+10mm -10+4mm -4+1mm Total

21/08/05 15.09 - 8.56 59.82 68.38 4/09/05 25.50 - 10.28 127.10 137.38

18/09/05 86.47 14.21 66.33 189.20 269.74 2/10/05 277.27 - 18.10 531.81 549.91

16/10/05 219.57 - 81.27 1,235.85 1,317.12 30/10/05 613 - 332.21 2,496.98 2,829.19 13/11/05 580.51 - 207.26 3,055.10 3,262.36 27/11/05 782 - 358.99 3,149.15 3,508.14 17/12/05 38.5 10.979 - 155.15 166.129 03/2006 103 16.81 73.76 90.57 04/2006 8.5 102.13 102.13 04/2006 3.8 13.07 11.87 24.94 05/2006 470.8 25.92 92.99 949.04 1,067.95 06/2006 175 18.63 138.47 157.1 TOTAL 3,398 51.11 1,224.5 12,275.27 13,550.88

48

Stones Recovered

Fortnight Ending

Processed Tonnes -25+10mm -10+4mm -4+1mm Total

21/08/05 15.09 - 21 684 705 4/09/05 25.50 - 41 1,167 1,208

18/09/05 86.47 1 182 2,531 2,714 2/10/05 277.27 - 54 6,754 6,808

16/10/05 219.57 - 90 17,194 17,284 30/10/05 613 - 786 34,159 34,945 13/11/05 580.51 - 218 36,595 36,813 27/11/05 782 - 485 42,493 42,978 11/12/05 38.5 1 - 3,161 3.162 03/2006 103 18 1,044 1,062 04/2006 8.5 1,632 1,632 04/2006 3.8 27 175 202 05/2006 470.8 2 116 16,791 16,909 06/2006 175 23 2,628 2,651 TOTAL 3,398 2 2,061 167,008 169,073

The size distribution of the tails diamonds is shown below and compared to the PalSac ‘run of mine’ size distribution. The tails population is clearly dominated by the finer diamond sizes with 93.4% less than +3gr, as compared to the ‘run of mine’ which has 67.6% in this size fraction. The x-ray sorter appears to have had a winnowing effect on the diamonds with the lower quality smaller diamonds being preferentially rejected. High quality large white fluorescing diamonds were not missed by the x-ray sorter and have not been recovered from the tailings. Table 6.6 Tails Size Distribution

% cont to grade Weight 2005 2006 Total Tails PalSac ROM* +10cts 35.41 17.19 52.60 0.39 1.4 +5cts 17.61 8.74 26.35 0.20 2.7 +2cts 190.07 21.25 211.32 1.56 9.6 +3GR 530.61 69.37 599.98 4.44 18.7

+9 DTC 2,828.71 317.72 3,146.43 23.30 38.6 +5 DTC 6,012.31 680.21 6,692.52 49.55 25.7 -5 DTC 2,454.66 322.49 2,777.15 20.56 3.3 Total 12,069.38 1,436.97 13,506.34 100.00 100.0

*Average for PalSac ‘run of mine’ 6.4 Diamond Liberation Testwork During the previous mining operations with no primary crushing and limited secondary crushing, diamond liberation became a serious issue as the pits were deepened and the kimberlite became harder. As a consequence the ROM pad contains some 20,000m3 of ‘sizer reject’ material which was mined but not processed. The ‘trommel reject’ also contains varying amounts of washed kimberlite cobbles. An inspection of the ‘cyclone floats’ revealed size ranges up to 25mm, indicating that the recrush circuit which aimed at reducing the floats to 8mm, was not in operation during all operations.

49

6.4.1 HPGR Testwork To test this reject material as well as primary kimberlite, a HPGR crushing unit was hired from Koppern Engineering and established at site. The material tested was processed through an onsite MK3 DMS plant.

Figure 6.2 HPGR crushing unit 50tph

1) Testing of Rejects A summary of the samples excavated and crushed from the at surface sizer rejects, trommel oversize and cyclone float stockpiles is shown in table 6.7 below. A small sample of cyclone float material was processed between each sample as a means of flushing the processing plant. The source location of the samples is shown in Fig 6.3. Table 6.7 Samples from ROM pad stockpiles – 2005/2006

Sample Description HMS Tonnes

Stones Recovered

Carats Recovered

Grade cpht

05-052-001 floats 6 270 23.70 395* 05-052-003 floats 4 5 0.18 4.5 05-052-005 floats 3.5 2 0.21 6 05-052-007 floats 3.5 17 1.89 54 05-052-009 floats 4.2 18 1.39 33 06-006-001 floats 6 14 0.79 13 06-006-003 floats 4.52 11 0.46 10 06-006-005 floats 5.2 3 0.20 3.8 06-006-008 floats 3.2 0 0 0 06-006-010 floats 3.2 15 0.28 8.75 06-006-012 floats 2.8 18 0.96 34.28 06-006-014 floats 1.8 3 0.20 11.12

Total Floats stockpile 41.92 106 6.56 15.6

05-052-004 ROM pad # 4 (sizer reject) 64.6 119 11.80 18

05-052-008 ROM pad # 5 – grizzly undersize (sizer rejects) 50.3 109 5.65 11

06-006-023 ROM Pad #2 Sizer rejects 69.4 210 13.67 19.7

06-006-024 ROM Pad #2 Sizer rejects 45.3 151 9.53 21

Total ROM Pad 64.6 119 11.80 18

50

Sizer Reject

06-006-004 ROM pad # 3 (trommel oversize) 65.3 83 4.8 7.4

06-006-009 ROM pad # 5 (trommel oversize) 43 48 9.82 22.8

Total ROM Pad Trommel Oversize 93.3 157 15.47 16.6

05-052-002 trommel oversize (tailings dam) 75.5 261 14.75 20

06-006-013 trommel oversize (tailings dam) 296 239 24.30 8.20



06-006-020 trommel oversize (tailings dam) 25.9 73 3.32 12.81

Total trommel oversize (tailings dam) 1844.5 262.7 158.1 8.6

*Contaminated sample excluded 2)Testing of Kimberlite Kimberlite samples were taken from three of the kimberlite pipes aimed at establishing the recoverable grades for the pipes. The work also provided information on crushing and scrubbing/milling requirements to allow the future design of a front-end for the Bateman DMS plant. Kimberlite samples from pits Kaye, Gawain and Ywain were excavated and HPGR crushed, with the exception of the Ywain sample which was deeply weathered. The samples were then processed through a MK3 DMS plant located at Merlin. Details are as follows; Table 6.8 Samples from pits

*not crushed due to material being deeply weathered 6.5 Trial Production 2006 NADL’s trial mining and processing operations commenced in early June, 2006 and continued until November and focused on excavating weathered kimberlite from Ywain and Gawain pipes. Details of mining, processing and recovery are shown in Table 6.9 below. Table 6.9 Processing Schedule 2006 – Tonnes Processed

PIPE 1ST QUARTER

2ND QUARTER

3RD QUARTER

4TH QUARTER

EXCALIBUR PALSAC LAUNFAL ECTOR GAWAIN 86.76 0.00 3716.93 10123.12 YWAIN 399.4 2938.08 1298.73 KAYE 323.7

Sample Pipe HMS Tonnes

Stones Recovered

Carats Recovered

Grade cpht

Mine Grade

05-052-006 Kaye 76.6 262 13.41 18 9 05-052-010 Ywain * 14.1 342 15.26 108 59 06-066-002 Gawain 86.76 879 46.46 53.55 34

51

GARETH TRISTRAM 36.51 PERCEVAL 89.87 920.31

TAILS ROM SIZER REJECT 114.70 630.00

ROM TR 79.70 TAILS DAM TR 2768.5

SORTHOUSE TAILS/MIX 12.25 650 285.79 456.58 FLOATS 18.92 7.8

TOTAL TONNES 197.63 4300.61 7660.67 12798.74 Cumulative Tonnes 198 4498 12159 24958

Table 6.10 Processing Schedule 2006 - Carats Recovered

PIPE 1ST QUARTER

2ND QUARTER

3RD QUARTER

4TH QUARTER

EXCALIBUR PALSAC LAUNFAL ECTOR GAWAIN 46.46 1269.38 3766.01 YWAIN 398.03 2369.05 880.97 KAYE 22.33

GARETH TRISTRAM 2.12 PERCEVAL 43.52 412.15

TAILS ROM SIZER REJECT 23.2 130.06

ROM TR Oversize TAILS DAM TR Oversize 5.2 234.83 96.91 SORTHOUSE TAILS/MIX 128.83 1357.3 266.28 355.6

FLOATS 1.45 1.89 TOTAL CARATS 181.94 2039.7 4175.2 5414.73

Cumulative Carats 182 2222 6397 11812

A total of 24,958 tonnes was processed to cessation of operations in late November, resulting in the recovery of 11,812 carats. Details are as follows;

Table 6.11: Processing by Quarter 2006

Kimberlite Tails

Kimberlite ROM Sorthouse/Mix TOTAL

Tonnes 98.62 86.76 12.25 197.63 Carats 6.65 46.46 128.83 181.15

1st Qtr from

24/2/06 Grade 6.74 53.55 1,051.67 91.66 Tonnes 2,890.97 759.65 650.01 4,300.63 Carats 259.62 422.48 1,357.63 2,039.73 2nd Qtr Grade 8.98 55.62 208.86 47.43

3rd Qtr Tonnes 630.65 6,744.88 285.79 7,661.32

52

Carats 226.97 3,743.12 205.11 4,175.2 Grade 35.99 55.5 71.77 54.50 Tonnes 0 12,342.16 456.58 12,798.7 Carats 0 5,059.13 355.6 5,414.73

4th Qtr to 27th

Nov Grade 0 41 78 42.31 cpht Table 6.12 Processing Summary for 2006

Material Tonnes Scrubber Carats Grade cpht Floats 26.7 2.84 10.64

Sizer Rejects 745.33 153.26 20.56 Trommel Rejects 2,848.21 337.14 11.84 Kimberlite ROM 19,933.45 9,271.19 46.551 Sorthouse/Mix 1,404.63 2,047.17 145.74

TOTAL 24,958.32 11,811.6 47.33 Although close to self sustainable levels of diamond production were achieved in the final two months of processing, throughput was severely hampered by insufficient and inefficient scrubbing and feeding capacity and water supply issues. These issues could not be addressed in the required timeframe due to capital expenditure constraints. Operations ceased in November 2006. 6.6 Trial Production 2009/2010 6.6.1 Production Trials

The summary in Table 6.14 below illustrates the high clay/slime content of the primary feed and the efficiency of the HPGR in generating additional slimes after the primary slimes are removed by washing. For the range of material being feed generally less than 15% of the primary feed was presenting to the DMS plant.

Table 6.14 Production Trials Summary 2009/2010

Month Feed ton

HPGR ton HPGR/Feed

DMS ton DMS/Feed

Carats

Sept, 2010 3980 1337 33.5% 622 15.6% 493.56* August 4203 954 26.70% 484 13.54% 484.54 July 4047 1386 32.64% 501 11.80% 413.23 June 8977 2479 27.64% 440 4.91% 785.92 May 10614 2709 22.41% 677 5.60% 1,401.35 April 5959 540.99 March 3879 500.26 February 2659 406.85 January 1492 307.25 December 1269 203 15.99% 1,657.05 November 4670 684 14.6% 1,704.41 October 4229 600.5 14.2% 541.00 September 5068 698 13.77% 583.05 August 3456 543.53 July, 2009 1500 235.03 Total 66,002 7528 26.07% 2101.8 7.28% 10,598.02

*Includes 189.7cts from Kaye that were not sized.

53

The diamond recoveries from the different pipes are shown below. Table 6.15 Merlin 2009-2010 Carat Recoveries per Pipe

size Gawain Kaye Sacramore Palomides OS Rejects Total Special 37.43 74.26 - - - 111.69

+10cts 10.77 - - - - 10.77

+9cts - 17.83 19.49 - - 37.32

+8cts - 8.35 - - 7.83 16.18

+7cts 22.45 29.20 7.37 7.00 7.56 73.58

+6cts 37.52 25.03 - - - 62.55

+5cts 41.76 52.18 - - - 93.94

+4cts 84.15 29.99 3.86 4.48 11.86 134.34

+3cts 137.83 120.24 11.73 3.46 2.83 276.09

+2cts 259.76 229.76 33.96 11.50 32.50 567.48

+1cts 584.16 385.96 80.67 25.32 91.48 1,167.59

-10+4mm 922.33 519.33 163.60 41.34 133.46 1,780.06

-4+2mm 1,572.15 1,151.44 208.09 76.22 266.62 3,274.52

-2+1mm 1,360.12 895.20 215.43 47.89 168.57 2,687.21

-1+0.75mm 43.52 45.86 18.74 1.06 5.92 115.10

Total 5,113.95 3,584.63 762.94 218.27 728.63 10,408.42

Table 6.16: Merlin 2009-2010 Stone Recoveries per Pipe

size Gawain Kaye Sacramore Palomides OS Rejects Total Special 3 4 - - - 7

+10cts 1 - - - - 1

+9cts - 2 2 - - 4

+8cts - 1 - - 1 2

+7cts 3 4 1 1 1 10

+6cts 6 4 - - - 10

+5cts 8 10 - - - 18

+4cts 20 7 1 1 3 32

+3cts 42 38 4 1 1 86

+2cts 120 103 16 5 15 259

+1cts 472 306 67 21 76 942

-10+4mm 1,941 975 331 85 267 3,599

-4+2mm 9,745 6,707 1,264 438 1,538 19,692

-2+1mm 40,937 26,646 7,001 1,340 4,834 80,758

-1+0.75mm 5,600 5,978 2,469 112 729 14,888

Total 58,898 40,785 11,156 2,004 7,465 120,308

54

6.6.2 Grade Control Samples

Grade control samples each of approximately 100m3 were taken from Gawain and Kaye pipes. The purpose of these samples was to obtain accurate volume based grades which could be used to assist in the calibration of the previous production data. Weight based grades generated from past production are unreliable due to fluctuating bulk densities and moisture contents. There have been no grade control samples taken from any of the other pipes apart from Sacramore which awaits processing. . Results are as follows;

Table 6.17 Grade Control Sample Results

Gawain

Sample No Weight tonne

Volume BCM

sg HPGR Feed

tonnes

DMS Feed

tonnes

Sorthouse Feed

tonnes

Carats Grade

Ct/BCM 09-300-008 216.3 111.06 1.95 94.5 47.4 0.22 75.87 0.68

09-300-009 219 96.73 2.26 101.7 34.1 2.63 108.78 1.12

09-300-010 228 127.9 1.78 109.5 38.7 0.29 90.64 0.84

Total 435.3 207.79 2.09 305.7 120.2 2.85 275.29 0.90 Kaye

10-330-100 231.3 109 2.12 117 38.2 22.41 0.21

10-330-102 210 94.08 2.23 87.38 55.5 5.93 0.06

10-330-104 196 87.66 2.24 8.05 0.15

Total 637.3 290.74 2.19 36.39 0.125 6.7 Microdiamond Analyses Microdiamond analyses of both core samples and 1m3 pit samples was instigated as a means of establishing a technique to investigate the commercial diamond grade of the pipes at depth and hence avoid the costly need of obtaining bulk samples from depth. This work, while showing promise is incomplete and is severely hampered by the unavailability of core and access to the mostly water filled pits. 6.7.1 Core Analyses The only core available for analysis is that obtained from drilling programs undertaken by NADL in the period since 2004, this being from the pipes Gawain, Ywain and PalSac. There was insufficient robust core available from the drilling of Bedevere to be able to undertake any comparative studies. The entire historic core was destroyed by RIO on cessation of the mining operations in 2003. Although some microdiamond analyses are completed there has been insufficient work done to confidently determine the commercial grade at depth for any of the pipes or to ascertain any trends in the diamond grade. A total of 11 core samples each of approximately 50kg have been analysed along with 5 boulder samples. 6.7.2 1m3 Pit Samples A total of 5 pit samples each of approximately im3 have been excavated from Gawain and Kaye pits and with one of the samples taken from Sacramore pit. These samples were totally digested to release all diamonds. There have been insufficient samples taken to allow confident grade determination analysis.

641800 mE 642200 mE

641800 mE

641900 mE

641900 mE

642000 mE

642000 mE

642100 mE

642100 mE5700

mN

8135

800

mN

8135

900

mN

8136

000

mN

8136

100

mN

8136

200

mN

642200 mE

8136200 mN

8136000 mN

8135700 mN

642700 mE

642700 mE

8135800 mN

8135900 mN

8136100 mN

8136

300

mN

8136300 mN

642600 mE

642600 mE642300 mE

642300 mE

642400 mE

642400 mE

642500 mE

642500 mE

SizerReject

TrommelOversize

TrommelOversize

SizerReject

SizerReject

SizerReject

TrommelOversize

05-052-00206-006-01306-006-02806-006-01906-006-020

06-006-009

05-052-008 05-052-004

06-006-004

06-006-02306-006-02406-006-033

Trommel Oversize

Trommel Oversize

Trommel Oversize

Sizer Reject

Sandstone (waste)

Sandstone (waste)

Trommel Oversize

Trommel Oversize

1

10

11

11A

12

13

14 15

1617

18

2

3

4

5

6

7 89

50

metres

100

Projection: AMG Zone 53 (AGD66)

Date:31/3/2008

Author:

Office:

Drawing:

25

Scale: 1:2500

0

FIGURE 6.3REJECT SAMPLES

North Australian Diamonds Ltd

Legend

D - Sizer RejectA - Trommel OversizeB - Trommel Oversize

C - Trommel OversizeF - Sandstone (waste)E - Sizer RejectTD - Trommel Oversize

SAMPLE PROJECT LOCALITY ANOMALY

05-052-001 FLOATS05-052-002 TROMMEL O/S TAILINGSDAM05-052-003 FLOATS05-052-004 SIZER REJECT ROMPAD #4 TRENCH 1505-052-005 FLOATS05-052-007 FLOATS05-052-008 Sizer Reject ROM PAD #5 TRENCH 1405-052-009 FLOATS05-052-010 KIMBERLITE YWAIN06-006-001 FLOATS06-006-003 FLOATS06-006-004 TROMMEL O/S ROM PAD #3 TRENCH 1106-006-005 FLOATS06-006-008 FLOATS06-006-009 TROMMEL O/S ROM PAD #5 TRENCH 1406-006-010 FLOATS06-006-012 FLOATS06-006-013 TROMMEL O/S TAILINGSDAM06-006-014 FLOATS06-006-018 TROMMEL O/S TAILINGSDAM06-006-019 TROMMEL O/S TAILINGSDAM06-006-020 TROMMEL O/S TAILINGSDAM06-006-023 SIZE REJECTS ROM PAD #2 TRENCH 6/706-006-024 SIZE REJECTS ROM PAD #2 TRENCH 6/706-006-033 SIZE REJECTS ROM PAD #2 TRENCH 6/7

ROM PAD # 3

ROM PAD # 4

ROM PAD # 5

ROM PAD # 1

ROM PAD # 2

55

7 RESOURCE ESTIMATION AND REPORTING

7.1 Introduction

The modelling of the resource for the purpose of determining insitu value and undertaking mining studies requires an understanding of the geology and geometry of the pipes and the grade and value of the diamond population. Determining these parameters not only requires an assessment of available data but also the appropriateness of extrapolating the data both between and outside the data points. These parameters are discussed below. 7.2 Geological Interpretation In interpreting the geology of the pipes, they are looked at both individually and collectively as evidence suggests the pipes represent the near surface expression of a single intrusive magmatic episode. 7.2.1 Spatial and Genetic Relationship of Pipes The Merlin kimberlite field comprises 4 discrete clusters of pipes located within a NS trending zone 10km long and 5km wide. In total there are 15 identified pipe vents which drilling to date indicates represents 12 discrete pipes, due to the coalescing of some of the vents to form a single pipe at depth. Future drilling will likely demonstrate that other vents will also coalesce at depth. The main pipe clusters are 2km apart. Within each cluster individual pipes/vents are usually less than 300m apart. While not all the individual pipes have been age dated, a common emplacement date of 360ma has been determined for three of the pipes which suggest the field is the result of a single intrusive episode with the different clusters being a consequence of structural emplacement controls. This conclusion is supported by the singular geochemical signature of the kimberlite magma and the single diamond population. 7.2.2 Pipe Geometry and Emplacement Controls The surface expression of the vents/pipes is ovoid to circular with varying surface areas. Where surface observation permits the pipes can be seen to be associated with narrow fractures bearing 0150 mag. Previous exploration has demonstrated these fractures to be very narrow and to be kimberlite bearing. These fractures represent near surface emplacement controls for the pipes. By far the most dominant influence over pipe emplacement is the Cambrian aged Bukulara Sandstone unit. This unit which is a flat lying interbedded sequence of siltstones and sandstones sits unconformably over the Proterozoic aged McArthur River Group sediments. The intruding kimberlites have clearly had difficulty penetrating this unit which is currently 120m thick. Vents like Palomides and Sacramore coalesce at the base of this sandstone formation to form a single pipe. Gawain and Bedevere increase in diameter immediately beneath the sandstone while Launfal has a significant dogleg. 7.2.3 Effects of Weathering The Merlin kimberlites have been severely affected by an intense weathering event. Without exception all of the pipes on the Merlin plateau are ‘infilled’ with cretaceous aged sediments comprising fossil bearing sandstones and mudstones. Evidence including the presence of slickensides at the margins of the pipes supports the premise that the sediments have subsided into the pipes at a date much later than their deposition. The thickness of these sediments varies between the pipes and can be up to 42m thick. The various infill thicknesses are shown in Table 7.1.

56

Table 7.1 Depth of Infill Sediments

Pipe Surface Pipe Diameter m Depth of Infill Sediments m Excalibur 60 26 Launfal 50 8 Launfal North 30 20 Palomides 60 8 Sacramore 60 8 Tristram 50 32 Gawain 50 23 Ywain 30 20 Gareth 60 15 Kaye 125 15 Ector 125 15 Bedevere 40 40 Perceval 20 8

For the southern and central cluster pipes there is no cretaceous aged sediments remaining in the vicinity of the pipes. For the Kaye and Ector pipes which belong to the northern cluster both pipes and surrounds are covered by cretaceous aged sediments. However excavation of Kaye and Ector revealed that the cretaceous aged sediments had subsided into the pipes. The cause of this subsidence is attributed to solution weathering of the kimberlite and subsequent volume reduction resulting in overlying sediments settling into the pipe. Differential weathering of the pipes has also played a part, with smaller pipes having deeper infill than the larger pipes. The differential weathering within individual pipes has also resulted in differential subsidence, with the periphery of the pipes weathering more than the centre resulting in greater thicknesses of infill sediments around the periphery of the pipes. This is best illustrated in Kaye pipe where the infill sediments are domed in the centre. Another effect of the solution weathering is that the material that does not solution weather, this being the diamonds and most country rock fragments concentrate at the base of the infill sediments. This phenomenon resulted in unrepresentative elevated diamond grades being reported in many of the early bulk samples that were excavated from the top of the kimberlites, after removing the infill sediments. A typical kimberlite profile beneath the infill sediments is for there to be 3m – 5m of clays, underlain by 10m – 15m of deeply weathered textureless kimberlite which has suffered volume reduction to the extent that pseudo bedding features are often present. Below this kimberlite textures are recognisable despite the weathering. The effects of weathering diminish with depth with fresh material generally being observed at depths of 120m to 140m. Laterally across a pipe the effects of weathering can be quite varied, with clay margins often being observed at considerable depths. This lateral variation of the intensity of weathering results in significant variations in the bulk density of the kimberlite at any vertical depth within the weathered zone. Deeply weathered kimberlite can have bulk densities as low as 1.3 while the less weathered kimberlite is usually in the order of 2.3. At depth the very fresh kimberlite has a bulk density of 2.6. 7.2.4 Kimberlite Phases It is accepted geological theory that volcanic magmas originate at depth and travel to or towards the surface. Kimberlite magmas are no exception and based on diamond crystallisation theory are postulated to originate from within the diamond stability field at depths exceeding some 150km. The kimberlite phases comprising the Merlin kimberlites have been classified using the nomenclature and genetic classification of Mitchell (1986). The pipes represent the preserved upper diatreme portion of the kimberlite intrusive. The top portion of the pipes was removed by erosion during the period post emplacement to the deposition of the marine cretaceous aged sediments, a time period of

57

some 250Ma. The depth of erosion during this period is not known. Although the cretaceous cover has been largely eroded no further erosion of the pipes has occurred due to them being preserved beneath infill sediments as was described in the previous section 2.4.1. The kimberlite phases identified at Merlin are described as follows;

A. Tuffisitic Kimberlite B. Micaceous Tuffisitic Kimberlite C. Pelletal Tuffisitic Kimberlite D. Tuffisitic Kimberlite Breccia E. Pelletal Tuffisitic Kimberlite Breccia F Epiclastic Kimberlite

The distribution of the different kimberlite facies within the various pipes is shown in Table 7.2. Table 7.2 Kimberlite Facies

Pipe A B C D E F Excalibur Y Y Y Y Launfal Y Y Y Y Launfal North

Y Y Y

Palomides Y Y Y Y Sacramore Y Y Y Y Tristram Y Gawain Y Y Y Y Ywain Y Gareth Y Y Kaye Y Y Y Ector Y Y Bedevere Y Perceval Y

Although most of the pipes contain more than one kimberlite facies, the subsidiary facies appear to represent less than 10% by volume within any pipe. Because of the difficulty of accurately defining these subsidiary facies and determining their diamond grade the pipes are considered as being entirely the dominant facies. The previous mining operations treated the pipes as comprising a single facies and hence all of the grade data pertains to the pipe as a whole. The size of the pipes is such that selective mining would be difficult to achieve. To test the reasonableness of this approach subsidiary facies will need to be tested for their diamond content to ensure that diamond grades are not lower than the dominant facies type for the pipe. Limited microdiamond testing completed to date indicates that this is the case, however there is only limited core available for the pipes PalSac, Launfal, Gawain, Ywain and Bedevere and no core available for the remaining pipes. The paucity of information on these subsidiary facies with respect to their relative diamond content creates potential uncertainty in the diamond resource should the abundancies of these facies change significantly. This remains one of the significant factors in the resources not being able to be upgraded to a Measured JORC category.

7.3 Moisture and Bulk Density Due to the variably weathered nature of the kimberlite both laterally and vertically both the moisture content and bulk density of the kimberlite varies considerably. The moisture content of freshly excavated material normally varies from 13% to 28% and if left on the ROM pad for any period will decrease over time. However during the wet season this same material can have high moisture contents due to rain. At significant depths below the depth of weathering the moisture content is usually 3%. The bulk density of the kimberlite varies with the degree of weathering of the kimberlite

58

and is as low as 1.3 for deeply weathered material and as high as 2.6 for very fresh unweathered material. Processed tonnes are always measured as wet tonnes and are difficult to reconcile with the excavated BCM which are converted to tonnes by the use of moisture and bulk density factors. While moisture and bulk density are important factor from a mining and processing perspective the resource estimates are best done based on BCM’s.

7.4 Estimation of Pipe Resources 7.4.1 Pipe Geometry The kimberlite pipes at Merlin have been defined by their surface expression, openpit excavation and drilling. The geometry of each pipe at depth has been established at 20m depth intervals based on drill intercepts. Boundary contacts are inferred between upper and lower established contacts and it is assumed that the overall boundary footprints maintain an ovoid/circular shape subject to evidence to the contrary. In general the pipes are vertically plunging and diminish in gauge with depth. With depth there are fewer drill contacts and confidence in the footprint shape decreases. To establish footprints with lower confidence limits, a known footprint is projected downwards along the projected plunge of the pipe, if the next actual contact fits the projected footprint then the shape of the footprint is maintained, but if it doesn’t then the shape of the footprint is amended within the constraints of the projection to accommodate the actual drill contact. The footprints are not projected further than 20m below the deepest drill contact. The establishment of the pipe boundaries by geological interpretation has a high degree of precision because of the vastly different nature of the volcanic pipe rock and the intruded country rock sediments. The contacts are usually very sharp despite the frequent increase in the abundance of country rock xenoliths close to the contacts. Once the pipe footprints are established the volume in BCM of the pipe resource is calculated for each 20m depth interval. Because of the inherent difficulties in determining robust moisture contents and bulk densities the volumes are not converted to tonnages for the purposes of reporting the resource statement. While there is a high degree of confidence in predicting the geometry of the pipes there is generally insufficient drilling to determine them to the accuracy required for a Measured JORC compliant Resource. 7.4.2 Pipe Volumes/Tonnes With the pipe footprints established at 20m depth intervals the volume of the resource for each pipe can be calculated. Resource estimates based on tonnes are somewhat more difficult to establish with certainty due to fluctuating bulk densities and moisture contents. In using the estimated volumes or tonnes for additional analyses aimed at establishing grade an understanding of the different kimberlite phases within each pipe is also required. Volume - The insitu volume estimate in m3 is based on the simple calculation;

V = (area of upper footprint + area of lower footprint)/2 * vertical distance between footprints. Tonnage - The insitu tonnage estimate requires the volume calculation to be converted to tonnes by using bulk density and moisture factors. While the general trends of increasing bulk density with depth and decreasing moisture content with depth hold true, specific measurements at any locality can be quite variable. In particular the lateral variability of both moisture content and bulk density in the weathered portions of a pipe can be up to 30%. This is the main reason that excavated tonnes estimated from surveyed volumes could never be reconciled with the processed plant tonnes during the historic mining operations. Hence in converting volumes to tonnages global bulk density and moisture estimates can only be applied.

59

For the purposes of estimating resource grades and resource values all calculations are based on volumes with results stated in BCM’s. While the BCM’s can be converted to tonnes by the application of the appropriate bulk density measurement this introduces another degree of uncertainty, due to the infrequency of bulk density measurements taken from the pipes at depth. Because all historic core was destroyed there is only limited core available from 4 of the pipes. 7.4.3 Pipe Grade Models In establishing a grade model for a pipe the following factors are considered; 1) Size-Frequency Distribution – Because of the past mining operations the size-frequency

distribution of the Merlin diamond population is well established and is identical for each of the pipes. This diamond distribution not only provides a template against which sample results can be validated and quantified but also identifies invalid data. Invalid data is rare and is identified when the size distribution of the diamond sample does not reflect the Merlin distribution in terms of the relative abundance of the different diamond sizes. This can occur when the sample is contaminated with a different diamond population or a large diamond is crushed resulting in too many smaller diamonds. In determining a grade it is the number of diamonds that are recovered in each size fraction that is most important rather than the collective weight.

2) Sample Size/Volume – While relatively small samples of 50t to 100t are sufficient to establish a

grade, large samples are required to establish the full size-frequency distribution and to establish statistically robust numbers of diamonds for each size category. Samples can be measured in either tonnes or BCM but the latter is the most effective as it does not require moisture and rock density to be factored into the grade calculations.

3) Sample Processing and Diamond Recovery – The diamond grades are plant recovered grades

and hence are influenced by the processing methodology. Of critical importance is the bottom screen size on the plant which arguably has the greatest impact on the recovered grade. The impact on grade of different mesh sizes can be easily seen in the recovered size-frequency distribution. Diamond liberation from the host rock is also a significant factor which is influenced by the degree of weathering of the rock and the use of crushers or HPGR technology in the circuit. The effectiveness of liberation techniques can only be measured against the results from material not processed in the same manner, or by the retreatment of rejected material. The effectiveness of final recovery can also influence grade and requires the regular auditing of the sorthouse tails material.

4) Continuity of Grade with Depth – The continuity of grade at depth is one of the more difficult

factors to determine in the absence of large bulk samples taken at depth. The determination of grade for a kimberlite relies heavily on two assumptions, namely;

- The diamonds are distributed reasonably homogenously throughout any particular kimberlite

facies.

- The size/frequency distribution of the diamonds will be constant for any particular kimberlite facies. Of equal importance is the defining of a particular kimberlite facies. While the definition of a Tuffisitic kimberlite breccia is based on the lithic fragments comprising >15% of the kimberlite, the abundance of the lithic fragments is usually not homogenous and may in fact blend into zones with <15% lithic fragments which would be a Tuffisitic kimberlite. As lithic fragments are barren of diamonds their specific abundance can impact significantly on local grade. While these factors affect grades locally, provided the containing kimberlite magma is the same intrusive phase it can be reasonably expected that similar diamond grades will occur both laterally and at depth throughout the specific intrusive phase.

The comparative microdiamond approach to this issue is underpinned by an understanding of the intrusive nature of the kimberlite facies being sampled. Hence depending on the kimberlite

60

facies the approach may not be universally applicable. The approach requires the micro-macrodiamond relationship to be established from samples taken at surface or within the open pits. By the digestion of core samples obtained at depth from the same kimberlite facies the microdiamond distribution can be determined and compared with that established for the larger samples taken at surface. Since microdiamonds represent the fine tail of a much broader size-frequency distribution they will be a reflection of the macro and commercial diamond grade. Unfortunately this work is incomplete and with the exception of PalSac no samples from below the base of the current pits have been taken, hence the continuity of grade at depth relies entirely on the assumption that this is the expected norm.

5) Data Quality – Of paramount importance is data quality both in the acquisition of the data and the recording of the data.

Three data sets have been examined, these being;

1993-1998 evaluation data 1998-2003 Ashton/RIO mining data 2004-2011 NADL trial mining and evaluation data

A. 1993-1998 Evaluation Data During this period two phases of large diameter RC sampling, a winze sample and bulk sampling was undertaken.

The results demonstrated lateral grade trends from lower grades in the centre of the pipes to higher grades towards the pipe margins. This is a consequence of the differential subsidence of the kimberlite due to the solution weathering. As the samples were taken from the top of the pipe which has suffered volume reduction, the bulk samples are unrepresentative of the deeper kimberlite thus rendering the results unsuitable for estimation of grades. B. 1998 – 2003 Ashton/RIO Mining Data During the period 1998 to 2003 trial mining operations were undertaken by Ashton/Rio Tinto resulting in the recovery of 507,000cts of diamonds from the processing of approximately 2.237 million tonnes of kimberlite. During these activities a total of 9 pipes were subject to open pit mining. These operations highlighted the difficulty of reconciling mined volumes with processed wet tonnes despite taking into account moisture and bulk density. Difficulties in reconciling the reported recovered diamonds with the diamonds that were valued and sold were also highlighted. In the first instance the recovered diamonds were sized according to size using standard DTC sieve plates and the number of diamonds recovered in each sieve size was recorded except for the -3DTC sieve plate. For valuation purposes the diamonds were then reclassified according to weight but in this instance the number of diamonds in each weight class was not recorded.

C. 2004-2011 NADL trial mining and evaluation data Two phases of trial production were completed during this period, the first in 2006 which resulted in the recovery of 25,318 carats and the second in 2009/2010 which resulted in 10,598 carats being recovered. These trials provided sufficient diamonds mainly from Gawain, Ywain and Kaye to establish size-frequency distribution relationships. There was also sufficient diamonds to undertake valuations. In addition grade control each of approximately 100m3 were excavated from Gawain and Kaye pipes and processed. These samples were treated differently than the normal ROM samples in that all rejects were crushed and repassed and DMS floats were also reprocessed. This ‘overprocessing’ of the test samples results in higher grades being achieved largely due to the better recovery of the finer diamonds. It should be noted that lower grades are normally achieved during commercial operations due to a number of factors including, but not limited to, the lower screen size that is chosen and the recovery technique being utilised. The 2009/2010 trials also involved the testing an evaluation of new processing components namely an Optical sorter and an HPGR crushing unit.

61

7.4.4 Diamond Value To determine the value of the resource a representative parcel of diamonds is required to be recovered, cleaned and valued. It is not a specific requirement that the diamonds are recovered from a single sample or that they represent a known volume of resource. It is important that as many size, colour, shape and quality categories are represented as possible. In practise all categories can be found in the smaller sizes due to the greater abundance of the smaller diamonds. In the larger sizes however not all colour, shapes and qualities may be represented, hence the average values for the larger sizes may be significantly influenced either positively or negatively by the quality of one or two stones. Because of this it is important to compare the range of qualities for each size category to see if they are similar. If so then average values for the size categories with few stones can be better modelled. Because of the quantity of diamonds recovered during the previous mining operations the Merlin diamond population is well understood. The valuations completed on the 2006 diamond parcel provided a good snapshot of the diamond value at that time but unfortunately this parcel was sold and cannot be retested in current markets. The 2009/2010 diamond parcel remains in hand and has provided a snapshot of current market values. This value must be treated with caution because of the skewed distribution of value within the Merlin diamond population. A rigorous analysis of quality distribution as it pertains to value is required for all size categories so as assumptions can be made on the average values likely to be achieved for the less frequent larger sized diamonds. Currently there are insufficient numbers of diamonds recovered in the larger size categories to confidently determine average values for these categories.

62

8 VOLUME MODEL

8.1 Introduction

The kimberlite pipes at Merlin have been defined by their surface expression, openpit excavation and drilling. Because of the nature of kimberlite pipes, being vertically emplaced volcanic intrusive, there is a high degree of predictability to the geometry of the pipes. Drilling to date has demonstrated that some of the pipes comprise multiple lithologies but usually with a dominant lithology. Hence, in defining the geometry the pipes are considered to be homogenous and single lithology intrusions. 8.2 Methodology The geometry of each pipe at depth has been established at 20m depth intervals based on drill intercepts. Boundary contacts are inferred between upper and lower established contacts and it is assumed that the overall boundary footprints maintain an ovoid/circular shape subject to evidence to the contrary. The establishment of the pipe boundaries by geological interpretation has a high degree of precision because of the vastly different nature of the volcanic pipe rock and the intruded country rock sediments. The contacts are usually very sharp despite the frequent increase in the abundance of country rock xenoliths close to the contacts. The drill holes are located by surface surveying which is tied to the national grid. The majority of the drill holes and all of the deeper holes have been surveyed downhole during the drilling process. Downhole survey intervals are normally at 25m intervals or less. All of the drilling data is maintained in a database.

8.3 Pipe Volumes/Tonnes

With the pipe footprints established at 20m depth intervals the volume of the resource for each pipe can be calculated. Resource estimates based on tonnes are somewhat more difficult to establish with certainty due to fluctuating bulk densities and moisture contents. In using the estimated volumes or tonnes for additional analyses aimed at establishing grade an understanding of the different kimberlite phases within each pipe is also required.

Volume - The insitu volume estimate in m3 is based on the simple calculation;

V = (area of upper footprint + area of lower footprint)/2 * vertical distance between footprints.

Tonnage - The insitu tonnage estimate requires the volume calculation to be converted to tonnes by using bulk density and moisture factors. While the general trends of increasing bulk density with depth and decreasing moisture content with depth hold true, specific measurements at any locality can be quite variable. In particular the lateral variability of both moisture content and bulk density in the weathered portions of a pipe can be up to 30%. This is the main reason that excavated tonnes estimated from surveyed volumes could never be reconciled with the processed plant tonnes during the historic mining operations. Hence in converting volumes to tonnages global bulk density and moisture estimates can only be applied. For the purposes of estimating resource grades and resource values all calculations are based on volumes with results stated in BCM’s. The pipe footprints for each of the pipes are shown in Plans 1-6 along with the calculated volumes.

Infill Depth 169m RL Sales cts/BCMBase of mined pit 133m RL Gawain 49,536BCM 103,795t 35,954cts 0.73Grade cpbcm (Modelled) 0.92

* calculatedMined Process

Depth m Flitch Top area volume* tonnes Indicated Inferred SG Carats Cts/BCM Cts/Tonne0 191mRL mined 0 0 infill infill 2.0 0 0 011 180mRL mined 0 0 infill infill 2.0 0 0 022 169mRL mined 892 1,757 vkb vkb 2.0 311.44 0.35 0.1823 168mRL mined 9,383 18,765 vkb vkb 2.0 5,222.5 0.56 0.2831 160mRL mined 2,436 4,871 vkb vkb 2.0 1,348.1 0.55 0.2834 157mRL mined 3,726 7,452 vkb vkb 2.0 2,277.0 0.61 0.3141 150mRL mined 32,364 64,727 vkb vkb 2.0 16,842.1 0.52 0.26

Total mined 48,801 97,572 2.0 26,001 0.53 0.2758 133mRL 3,049.0 11,052 24,536 2.22 10196 0.92 0.4154 129m RL 3,049.0 60,560 134,443 134,443 2.22 55715 0.92 0.4171 120m RL 3,007.0 26,015 57,752 192,195 2.22 23933 0.92 0.3991 100m RL 2,774.0 54,790 128,209 320,404 2.34 50407 0.92 0.39111 80m RL 2,705.0 51,760 121,118 441,522 2.34 47619 0.92 0.39131 60m RL 2,471.0 50,400 118,440 559,962 2.35 46368 0.92 0.39151 40m RL 2,569.0 49,310 115,879 675,841 2.35 45365 0.92 0.39171 20m RL 2,362.0 44,590 104,787 780,627 2.35 41023 0.92 0.39191 0m RL 2,097.0 40,300 94,705 875,332 2.35 37076 0.92 0.39211 ‐20m RL 1,933.0 39,200 92,120 967,452 2.35 36064 0.92 0.39231 ‐40m RL 1,987.0 35,090 82,462 1,049,914 2.35 32283 0.92 0.39251 ‐60m RL 1,522.0 32,640 76,704 76,704 2.35 30029 0.92 0.39271 ‐80m RL 1,742.0 36,270 85,235 161,939 2.35 33368 0.92 0.39291 ‐100m RL 1,885.0 35,710 83,919 245,857 2.35 32853 0.92 0.39311 ‐120m RL 1,686.0 33,270 78,185 324,042 2.35 30608 0.92 0.39331 ‐140m RL 1,641.0 33,170 77,950 401,991 2.35 30516 0.92 0.39351 ‐160m RL 1,676.0 32,180 75,623 477,614 2.35 29606 0.92 0.39371 ‐180m RL 1,542.0 56,364 132,455 610,069 2.35 51855 0.92 0.39391 ‐200m RL 1,142.0 0 0591 ‐400m RL 1,144.0 0 0

711,619 1,659,983 1,049,914 610,069 654,689 0.920 0.39

Reconciled Mining Record

Cum Tonnes

mined 2006/2009/2010 trials

Table 8.1: Gawain

Infill Depth 177.5m RL

Base of mined pit 151m RL Sales cts/BCMGrade cpbcm (non‐model) 1.76 Ywain 6,890BCM 14,422t 8,567cts 1.24


Depth m Flitch Top area volume* tonnes Indicated Inferred SG Carats Cts/BCM Cts/Tonne0 188mRL mined 0 0 infill infill 2.0 08 180mRL mined 0 0 infill infill 2.0 0

10.5 177.5mRL mined 1,877 4,148 vkb vkb 2.2 2008.78 1.07 0.4820.5 167.5mRL mined 560 1,318 vkb vkb 2.4 393.48 0.70 0.3023 165mRL mined 883 1,766 vkb vkb 2.0 1054.57 1.19 0.6026 162mRL mined 374 748 vkb vkb 2.0 293.32 0.78 0.3928 160mRL mined 926 1,852 vkb vkb 2.0 1368.16 1.48 0.7430 158mRL mined 894 1,788 vkb vkb 2.0 1306.06 1.46 0.7336 152mRL mined 1,401 2,802 vkb vkb 2.0 1659.64 1.18 0.59

Total mined 6,915 14,422 2.1 8084.01 1.17 0.5637 151mRL 519.1 2,076 4,360 4,360 2.1 3647 1.76 0.8441 147mRL 519.1 3,634 7,631 7,630.8 2.1 6395 1.76 0.8448 140mRL 519.1 10,307 21,645 29,275.5 2.1 18140 1.76 0.8468 120m RL 511.6 10,807 22,695 51,970.2 2.1 19020 1.76 0.8488 100m RL 569.1 11,362 23,860 75,830.4 2.1 19997 1.76 0.84

108 80m RL 567.1 11,266 23,659 23,659 2.1 19828 1.76 0.84128 60m RL 559.5 8,825 18,533 42,191 2.1 15532 1.76 0.84148 40m RL 323.0 6,460 15,181 57,372 2.35 11370 1.76 0.75168 20m RL 323.0 6,635 15,592 72,964 2.35 11678 1.76 0.75188 0m RL 340.5 6,810 16,004 88,968 2.35 11986 1.76 0.75208 ‐20m RL 340.5 2,724 6,401 95,369 2.35 4794 1.76 0.75228 ‐40m RL 340.5 0 0 2.4 0

78,830 171,200 75,830 95,369 138,740 1.76 0.81


Cum Tonnes

mined 2006 trials

Table 8.2: Ywain

Palomides Sacramore Sales cts/BCMBase of mined pit 114m RL 108m RL Palomides 195,529BCM 373,458t 66771cts 0.34Grade cpbcm(model) Sacramore 174,431BCM 351,976t 59,409cts 0.34

Palomides Sacramore Palomides Sacramore Palomides Sacramore Palomides Sacramore Palomides Sacramore Palomides Sacramore Palomides SacramoreDepth m Flitch Top Area of Kimb Breccia Indicated Inferred

0 188mRL 4,414.2 3,887.4 35,313.6 31,099.2 0 0 infill infill 2.0 2.0 0 0 0 0 0 08 180mRL 4,414.2 3,887.4 22,071.0 19,437.0 0 0 infill infill 2.0 2.0 0 0 0 0 0 013 175mRL 4,019.0 3,324.0 39,269 41,441 73,510 81,714 vkb vkb 1.9 2.0 14754.96 16787.33 0.38 0.41 0.20 0.2123 165mRL 3,624.4 2,760.4 34,720 29,095 67,099 57,624 vkb vkb 1.9 2.0 12262.4 7632.52 0.35 0.26 0.18 0.1333 155mRL 2,941.2 2,835.4 20,872 26,119 45,453 46,711 vkb vkb 2.2 1.8 7845.98 9006.15 0.38 0.34 0.17 0.1940 148m RL 3,523.7 2,562.0 25,271 20,025 50,576 39,012 vkb vkb 2.0 1.9 8563.75 6387.13 0.34 0.32 0.17 0.1648 140mRL 3,523.7 2,562.0 27,440 24,253 52,542 50,297 vkb vkb 1.9 2.1 9870.71 7372.89 0.36 0.30 0.19 0.1558 130mRL 3,523.7 2,562.0 20,142 13,715 42,279 30,850 vkb vkb 2.1 2.2 5557.39 4291.23 0.28 0.31 0.13 0.1468 120mRL 3,523.7 2,562.0 29,297 19,784 45,200 45,768 vkb vkb 1.5 2.3 7783.55 10157.69 0.27 0.51 0.17 0.22

Total Mined 197,011 174,432 376,659 351,976 1.9 2.0 66,639 61,635 0.34 0.35 0.18 0.18Total Mined

74 114mRL 4,650 0 61,380 0.72 0.3383 108m RL 4,650 1,810 186,997 0.72 0.3188 100m RL 5,541 1,653 573,098 0.72 0.31

108 80m RL 1,052,723 0.72 0.31128 60m RL 1,576,631 0.72 0.31148 40m RL 2,110,853 0.72 0.31168 20m RL 2,615,123 0.72 0.31188 0m RL 3,096,929 0.72 0.31208 ‐20m RL 3,565,631 0.72 0.31228 ‐40m RL 4,037,375 0.72 0.31248 ‐60m RL 4,514,220 0.72 0.31268 ‐80m RL 4,967,900 0.72 0.31288 ‐100m RL 6,127,700 0.72 0.30338 ‐150m RL 7,207,685 0.72 0.30388 ‐200m RL 8,106,154 0.72 0.30438 ‐250m RL 841,854 0.72 0.29488 ‐300m RL 1,683,708 0.72 0.29538 ‐350m RL 5,064,540 0.72 0.29738 ‐550m RL 5,909,748 0.72 0.29788 ‐600m RL 6,591,281 0.72 0.29868 ‐640m RL

8,106,154 6,591,281

323103266595

164203165289

145958147537140369349873

2.43

242830242830971318242830194264

4,378,7130

2.32.312.342.34

Cts/Tonne

0.18

0.2980.724

2.422.442.512.512.522.52

156022149072145017

2.54

2.342.342.342.342.342.40

150324

Cts/BCM

0.35

Cum Tonnes

2.22.32.3

2020039542121538

453,6791,159,800

0.0

Mined Volume

481,806468,702471,744476,845

CaratsSG

371,443 728,635 128,2742.0

14,697,4356,047,946

534,222504,270

368,225

681,533

1,079,986898,469841,854841,8543,380,832845,208

125,617386,101479,625523,908

335,4001,341,600335,400268,320

9,8889,500

11,320

335,400

200,300201,600203,780193,880483,250446,275

10,23010,3609,67010,490

226,800228,300215,500205,900

11,17011,510

6,7086,708

9,8308,0216,7086,7086,7086,708


0.72

Table 8.3: Palomides-Sacramore (PALSAC)

9,593

27,90054,616167,870207,630

Process tonnes

61,380

Base of mined pit 86m RL cts/BCMGrade cpbcm (non‐model) 0.59 Launfal 186,981BCM 345,895t 67,326cts 0.36

Mined ProcessDepth m Flitch Top Area volume tonnes Indicated Inferred SG Carats Cts/BCM Cts/Tonne

0 186mRL Mined Infill 0 infill infill 2.0 0 0 06 180mRL Mined Infill 0 infill infill 2.0 0 0 08 178mRL Mined Infill 0 infill infill 2.0 0 0 0

13 173mRL Mined 17,087 30,545 vkb vkb 1.8 10864 0.64 0.3619 167mRL Mined 18,861 41,596 vkb vkb 2.2 10110 0.54 0.2427 159m RL Mined 15,242 33,446 vkb vkb 2.2 5881.0 0.39 0.1838 148m RL Mined 17,714 35,481 vkb vkb 2.0 5279 0.30 0.15

47.5 138.5m RL Mined 20,451 42,790 vkb vkb 2.1 8316 0.41 0.1958 128m RL Mined 21,519 44,004 vkb vkb 2.0 8678 0.40 0.2071 115m RL Mined 23,729 41,229 vkb vkb 1.7 2596 0.11 0.0681 105m RL Mined 23,934 42,363 vkb vkb 1.8 8813 0.37 0.2191 95m RL Mined 8,007 14,173 vkb vkb 1.8 2445 0.31 0.17

101 85m RL Mined 21,621 38,270 vkb vkb 1.8 4100 0.19 0.11Total Mined 188,165 363,897 1.9 67,082 0.36 0.18

104 86mRL 2,627.0 15,762 34,676 34,676 2.20 9363 0.59 0.27106 80m RL 2,627.0 67,390 156,345 191,021 2.32 40030 0.59 0.26126 60m RL 4,112.0 82,320 194,275 385,296 2.36 48898 0.59 0.25146 40m RL 4,120.0 74,980 178,452 563,749 2.38 44538 0.59 0.25166 20m RL 3,378.0 67,750 161,245 724,994 2.38 40244 0.59 0.25186 0m RL 3,397.0 71,110 169,953 894,947 2.39 42239 0.59 0.25206 ‐20m RL 3,714.0 72,820 174,040 1,068,987 2.39 43255 0.59 0.25226 ‐40m RL 3,568.0 71,200 170,168 1,239,155 2.39 42293 0.59 0.25246 ‐60m RL 3,552.0 71,040 169,786 1,408,940 2.39 42198 0.59 0.25266 ‐80m RL 3,552.0 71,940 171,937 1,580,877 2.39 42732 0.59 0.25286 ‐100m RL 3,642.0 397,150 949,189 949,189 2.39 235907 0.59 0.25386 ‐200m RL 4,301.0 215,050 513,970 1,463,158 2.39 127740 0.59 0.25436 ‐250m RL 4,301.0 103,224 246,705 1,709,863 2.39 61315 0.59 0.25486 ‐300m RL 4,301.0

1,381,736 3,290,740 1,580,877 1,709,863 820,751 0.59 0.25


Cum Tonnes

Table 8.4: Launfal

Base of mined pit 150m RL Sales cts/BCMGrade cpbcm (non‐model) 0.26 Kaye 90,548BCM 185,648t 20,364cts 0.22

Mined ProcessDepth m Flitch Top area volume tonnes Indicated Inferred SG Carats Cts/BCM Cts/Tonne

0 183mRL mined 0 0 infill infill 2.0 0 0 019.5 163.5mRL mined 9,392 17,359 vkb vkb 1.8 1451.67 0.15 0.0820 163mRL mined 2,765 5,729 vkb vkb 2.1 997.42 0.36 0.1723 160mRL mined 33,006 63,148 vkb vkb 1.9 6454.16 0.20 0.1025 158mRL mined 4,291 7,638 vkb vkb 1.8 1425.78 0.33 0.1927 156mRL mined 5,285 10,146 vkb vkb 1.9 731.55 0.14 0.0728 155mRL mined 19,941 37,888 vkb vkb 1.9 4361.31 0.22 0.1230 153mRL mined 16,505 31,361 vkb vkb 1.9 3177.21 0.19 0.10

Total mined 91,185 173,269 1.9 18599.1 0.20 0.1133 150mRL 8,729.0 13,870 27,602 27,602 2.0 3607 0.26 0.13

34.6 148.4mRL 8,729.0 72,820 145,639 145,639 2.0 19224 0.26 0.1343 140mRL 8,609.0 173,070 346,140 491,779 2.0 45690 0.26 0.1363 120m RL 8,698.0 177,160 354,320 846,099 2.0 46770 0.26 0.1383 100m RL 9,018.0 90,415 191,680 191,680 2.1 23870 0.26 0.1293 90m RL 9,018.0 91,495 201,289 392,969 2.2 24155 0.26 0.12

103 80m RL 9,065.0 183,460 427,462 820,431 2.33 48433 0.26 0.11123 60m RL 9,281.0 190,480 443,818 1,264,249 2.33 50287 0.26 0.11143 40m RL 9,767.0 188,610 443,234 1,707,483 2.35 49793 0.26 0.11163 20m RL 9,094.0 181,880 427,418 2,134,901 2.35 48016 0.26 0.11183 0m RL 9,094.0 0 0

1,349,390 2,981,000 846,099 2,134,901 356,239 0.26 0.12


Cum Tonnes

mined 2006/2009/2010 trials

Table 8.5: Kaye

Base of mined pit 155m RL Sales cts/BCMGrade cpbcm (non‐model) 0.17 Ector 114,051BCM 243,442t 19,056cts 0.17


0 185mRL mined 0 0 infill infill 2.0 0 0 015 170mRL mined 8,254 16,507 vkb vkb 2.0 1582.38 0.19 0.10

16.5 168.5mRL mined 6,567 14,678 vkb vkb 2.2 1088.45 0.17 0.0717 168mRL mined 13,981 29,080 vkb vkb 2.1 2932.69 0.21 0.1020 165mRL mined 16,951 36,756 vkb vkb 2.2 2563.62 0.15 0.07

22.5 162.5mRL mined 9,776 20,964 vkb vkb 2.1 1456.61 0.15 0.0725 160mRL mined 22,095 44,190 vkb vkb 2.0 7494.14 0.34 0.1727 158mRL mined 6,861 13,723 vkb vkb 2.0 1573.59 0.23 0.1130 155mRL mined 3,329 6,658 vkb vkb 2.0 245.52 0.07 0.04

Total mined 87,814 182,556 2.1 18,937 0.22 0.1031 155mRL 13,180.0 197,700 401,331 401,331 2.0 32621 0.17 0.1045 140mRL 13,180.0 269,400 546,882 948,213 2.0 44451 0.17 0.0865 120m RL 13,760.0 276,400 561,092 1,509,305 2.0 45606 0.17 0.0885 100m RL 13,880.0 276,700 561,701 561,701 2.0 45656 0.17 0.08105 80m RL 13,790.0 288,800 687,344 1,249,045 2.4 47652 0.17 0.08125 60m RL 15,090.0 307,700 732,326 1,981,371 2.4 50771 0.17 0.07145 40m RL 15,680.0 313,100 745,178 2,726,549 2.4 51662 0.17 0.07165 20m RL 15,630.0 312,600 743,988 3,470,537 2.4 51579 0.17 0.07185 0m RL 15,630.0 0 0 0 0.07205 ‐20m RL 0.0 0 0

2,242,400 4,979,842 1,509,305 3,470,537 369,996 0.17 0.07


Cum Tonnes

Table 8.6: Ector

Base of mined pit 94m RL Sales cts/BCMGrade cpbcm (non‐model) 0.50 Gareth 94,803BCM 191,372t 46,810cts 0.49


Depth m Flitch Top area volume* tonnes Indicated Inferred SG Carats Cts/BCM Cts/Tonne0 178mRL mined 0 0 infill infill 2.2 0 0 08 170mRL mined 0 0 infill infill 2.2 0 0 015 163.5mRL mined 1,054 2,658 vkb vkb 2.5 433.84 0.412 0.16318 160mRL mined 18,470 43,399 vkb vkb 2.3 8,150.20 0.441 0.18828 150mRL mined 22,084 37,571 vkb vkb 1.7 9,570.44 0.433 0.25538 140mRL mined 16,650 34,966 vkb vkb 2.1 7,344.76 0.441 0.21048 130mRL mined 10,399 21,837 vkb vkb 2.1 4,458.08 0.429 0.20458 120mRL mined 16,949 35,593 vkb vkb 2.1 6,692.04 0.395 0.18870 108mRL mined 7,309 15,348 vkb vkb 2.1 3,072.87 0.420 0.200

Total mined 92,915 191,372 2.1 39,722.23 0.43 0.20884 94mRL 2,019.0 26,264 55,154 55,154.4 2.1 13132 0.50 0.2498 80mRL 1,733.0 33,560 70,476 125,630.4 2.1 16780 0.50 0.24118 60mRL 1,623.0 30,800 73,304 73,304 2.4 15400 0.50 0.21138 40mRL 1,457.0 29,140 69,353 142,657 2.4 14570 0.50 0.21148 20mRL 1,457.0 0 0

119,764 268,288 125,630 142,657 59,882 0.50 0.22


Cum Tonnes

Table 8.7: Gareth

Base of mined pit 100m RL Sales cts/BCMGrade cpbcm (non‐model) 0.76 Excalibur 174,852BCM 368,845t 125,390cts 0.72


0 180mRL mined 0 0 infill infill 2.2 0 0 010 170mRL mined 0 0 infill infill 2.2 0 0 020 160mRL mined 2,185 3,447 vkb vkb 1.58 347.28 0.16 0.1030 150mRL mined 40,355 81,237 vkb vkb 2.01 25,330.03 0.63 0.3140 140mRL mined 38,901 85,082 vkb vkb 2.19 26,124.26 0.67 0.3150 130mRL mined 35,279 77,788 vkb vkb 2.20 26,708.23 0.76 0.3460 120mRL mined 28,795 59,078 vkb vkb 2.05 23,045.71 0.80 0.3970 110mRL mined 21,100 43,176 vkb vkb 2.05 15,133.94 0.72 0.3580 100mRL mined 8,237 19,037 vkb vkb 2.31 5,258.39 0.64 0.28

Total mined 174,852 368,845 2.1 121,947.84 0.70 0.3383 100m RL 2,670.0 50,880 106,848 106,848.0 2.2 38,669 0.76 0.36

100 80m RL 2,418.0 50,410 105,861 212,709.0 2.2 38,312 0.76 0.36120 60m RL 2,623.0 47,010 98,721 311,430.0 2.2 35,728 0.76 0.36140 40m RL 2,078.0 39,090 82,089 393,519.0 2.2 29,708 0.76 0.36160 20m RL 1,831.0 33,840 71,064 464,583.0 2.3 25,718 0.76 0.36180 0m RL 1,553.0 30,420 75,746 75,746 2.3 23,119 0.76 0.31200 ‐20m RL 1,489.0 30,630 76,269 152,015 2.3 23,279 0.76 0.31220 ‐40m RL 1,574.0 31,480 78,385 230,400 2.3 23,925 0.76 0.31240 ‐60m RL 1,574.0 31,480 78,385 308,785 2.3 23,925 0.76 0.31260 ‐80m RL 1,574.0 0 0

345,240 773,368 464,583 308,785 262,382 0.76 0.34


Cum Tonnes

Table 8.8: Excalibur

Surface (unmined) 172m RLGrade cpbcm(non‐model) 0.47

Insitu InsituDepth m Flitch Top area volume tonnes Indicated Inferred SG carats Cts/BCM Cts/Tonne

0 172mRL 1,200.0 14,400 31,680 infill 2.2 0 0 012 160mRL 1,200.0 24,000 52,800 infill 2.2 0 0 032 140mRL 1,200.0 13,100 28,820 infill 2.2 0 0 042 130m RL 1,420.0 14,200 29,820 29,820 2.1 6,674 0.47 0.2252 120mRL 1,420.0 28,400 59,640 89,460 2.1 13,348 0.47 0.2272 100m RL 1,420.0 28,400 59,640 149,100 2.1 13,348 0.47 0.2292 80m RL 1,420.0 28,400 59,640 208,740 2.1 13,348 0.47 0.22112 60m RL 1,420.0 25,850 60,748 269,488 2.4 12,150 0.47 0.20132 40m RL 1,165.0 21,450 50,408 319,895 2.4 10,082 0.47 0.20152 20m RL 980.0 19,600 46,060 365,955 2.4 9,212 0.47 0.20172 0m RL 980.0 19,600 46,060 46,060 2.4 9,212 0.47 0.20192 ‐20m RL 980.0 19,600 46,060 92,120 2.4 9,212 0.47 0.20212 ‐40m RL 980.0 19,600 46,060 138,180 2.4 9,212 0.47 0.20232 ‐60m RL 980.0

225,100 504,135 365,955 138,180 105,797 0.47 0.21

Cum Tonnes

Table 8.9: Bedevere

Surface (unmined) 188m RLGrade cpbcm(non‐model) 0.13

Insitu InsituDepth m Flitch Top area volume tonnes Indicated Inferred SG carats Cts/BCM Cts/Tonne

0 187mRL 0 0 infill 2.2 0 0 07 180mRL 0 0 infill 2.2 0 0 0

27 160mRL infill 2.2 0 0 0154.5m RL 2,467.0 35,525 74,603 74,603 2.1 4,618 0.13 0.06

42 140m RL 2,467.0 49,090 103,089 177,692 2.1 6,382 0.13 0.0652 120mRL 2,433.0 48,750 102,375 280,067 2.1 6,338 0.13 0.0672 100m RL 2,442.0 49,190 108,218 388,285 2.2 6,395 0.13 0.0692 80m RL 2,477.0 45,690 100,518 488,803 2.2 5,940 0.13 0.06

112 60m RL 2,092.0 40,390 92,897 581,700 2.3 5,251 0.13 0.06132 40m RL 1,947.0 36,320 83,536 665,236 2.3 4,722 0.13 0.06152 20m RL 1,685.0 32,830 75,509 740,745 2.3 4,268 0.13 0.06172 0m RL 1,598.0 0 2.3

337,785 740,745 740,745 43,912 0.13 0.06

Table 8.10: Tristram

Cum Tonnes

AngelaD

Text Box

Plan 1

AngelaD

Text Box

Plan 2

8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643643,300 mE 643,400 mE

643,300 mE 643,400 mE 643

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac Drilling

8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643,5643,300 mE 643,400 mE

643,300 mE 643,400 mE 643,5

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac 140mRL

Inferred Contact

Actual Contact

Area = Mined

8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

64643,300 mE 643,400 mE

643,300 mE 643,400 mE 64

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac 120mRL

Inferred Contact

Actual Contact

Area = Mined

8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

6643,300 mE 643,400 mE

643,300 mE 643,400 mE 6

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac 100mRL

Inferred Contact

Actual Contact

Area = Mined

643,400 mE

643,400 mE

643,300 mE

643,300 mE

643,200 mE

643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,100 mE

mE

mE

643,100 mE8,

136,

600

mN

8,13

6,50

0 m

N8,

136,

400

mN

8,13

6,30

0 m

N8,

136,

200

mN

8,13

6,10

0 m

N

Palsac 80mRL

Inferred Contact

Actual Contact

Area = 9,593 square metres

643,400 mE

643,400 mE

643,300 mE

643,300 mE643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,200 mE0 mE 643,100 mE

643,100 mE

8,13

6,60

0 m

N8,

136,

500

mN

8,13

6,40

0 m

N8,

136,

300

mN

8,13

6,20

0 m

N8,

136,

100

mN

Palsac 60mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643,643,300 mE 643,400 mE

643,300 mE 643,400 mE 643,

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac 40mRL

Inferred Contact

Actual Contact


643,400 mE

643,400 mE

643,300 mE

643,300 mE643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,200 mE0 mE 643,100 mE

643,100 mE

8,13

6,60

0 m

N8,

136,

500

mN

8,13

6,40

0 m

N8,

136,

300

mN

8,13

6,20

0 m

N8,

136,

100

mN

Palsac 20mRL

Inferred Contact

Actual Contact


643,400 mE

643,400 mE

643,300 mE

643,300 mE

643,200 mE

643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,100 mE

mE

mE

643,100 mE8,

136,

600

mN

8,13

6,50

0 m

N8,

136,

400

mN

8,13

6,30

0 m

N8,

136,

200

mN

8,13

6,10

0 m

N

Palsac 0mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

64643,300 mE 643,400 mE

643,300 mE 643,400 mE 64

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -20mRL

Inferred Contact

Actual Contact


643,400 mE

643,400 mE

643,300 mE

643,300 mE643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,200 mE00 mE 643,100 mE

643,100 mE

8,13

6,60

0 m

N8,

136,

500

mN

8,13

6,40

0 m

N8,

136,

300

mN

8,13

6,20

0 m

N8,

136,

100

mN

Palsac -40mRL

Inferred Contact

Actual Contact


643,400 mE

643,400 mE

643,300 mE

643,300 mE643,200 mE

8,136,600 mN

8,136,500 mN

8,136,400 mN

8,136,300 mN

8,136,200 mN

8,136,100 mN

643,200 mE0 mE 643,100 mE

643,100 mE

8,13

6,60

0 m

N8,

136,

500

mN

8,13

6,40

0 m

N8,

136,

300

mN

8,13

6,20

0 m

N8,

136,

100

mN

Palsac -60mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643,300 mE 643,400 mE

643,300 mE 643,400 mE

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -80mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643,300 mE 643,400 mE

643,300 mE 643,400 mE

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -100mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643643,300 mE 643,400 mE

643,300 mE 643,400 mE 643

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -150mRL

Inferred Contact

Actual Contact


8,136,600 mN

8,136,500 mN

643,643,300 mE

643,300 mE

643,400 mE

643,400 mE 643,

643,200 mE

643,200 mE

8,136,400 mN

8,136,300 mN

8,136,100 mN

8,136,200 mN

643,100 mE

643,100 mE8,

136,

300

mN

8,13

6,10

0 m

N8,

136,

200

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,13

6,60

0 m

N

Palsac -200mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

6643,300 mE 643,400 mE

643,300 mE 643,400 mE 6

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -250mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643643,300 mE 643,400 mE

643,300 mE 643,400 mE 643

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -300mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

64643,300 mE 643,400 mE

643,300 mE 643,400 mE 64

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -550mRL

Inferred Contact

Actual Contact


8,136,400 mN

8,136,100 mN

8,136,200 mN

8,136,300 mN

643,300 mE 643,400 mE

643,300 mE 643,400 mE

643,200 mE

643,200 mE

8,13

6,20

0 m

N8,

136,

300

mN

8,13

6,40

0 m

N8,

136,

500

mN

8,136,500 mN

8,13

6,60

0 m

N8,136,600 m

N8,

136,

100

mN

643,100 mE

643,100 mE

Palsac -600mRL

Inferred Contact

Actual Contact


AngelaD

Text Box

Plan 3

AngelaD

Text Box

Plan 4

AngelaD

Text Box

Plan 5

AngelaD

Text Box

Plan 6

TRISTRAM

AngelaD

Text Box

Plan 7

8,136,850 mN

8,136,800 mN

8,136,750 mN

643,050 mE

643,050 mE

643,100 mE

643,100 mE

8,136,900 mN

8,13

6,95

0 m

N

643,000 mE

642,900 mE 642,950 mE

642,950 mE

643,000 mE8,

136,

800

mN

8,13

6,85

0 m

N8,

136,

900

mN

8,136,950 mN

8,13

6,75

0 m

N13

6,70

0 m

N

Tristram Drilling

8,136,750 mN

643,050 mE

643,050 mE

643,100 mE

643,100 mE643,000 mE

643,000 mE642,950 mE

642,950 mE

8,13

6,80

0 m

N8,

136,

850

mN

8,13

6,90

0 m

N8,

136,

950

mN

8,136,950 mN

8,136,900 mN

8,136,800 mN

8,136,850 mN

8,13

6,75

0 m

N00

mN

Tristram 140mRL

Inferred Contact

Actual Contact


643,100 mE

643,100 mE

643,050 mE

643,050 mE642,950 mE

E

E

642,950 mE8,136,950 m

N8,136,900 m

N8,136,850 m

N8,136,800 m

N8,136,750 m

N8,136,7

643,000 mE

643,000 mE

8,13

6,95

0 m

N8,

136,

900

mN

8,13

6,85

0 m

N8,

136,

800

mN

8,13

6,75

0 m

NN

Tristram 120mRL

Inferred Contact

Actual Contact


8,136,800 mN

8,136,850 mN643,050 mE

643,050 mE

643,100 mE

643,100 mE

8,136,750 mN

8,13

6,90

0 m

N643,000 mEmE

mE

642,950 mE

642,950 mE

8,13

6,85

0 m

N8,

136,

950

mN

8,136,950 mN

8,136,900 mN

8,13

6,80

0 m

N

643,000 mE

8,13

6,75

0 m

N0

mN

Tristram 100mRL

Inferred Contact

Actual Contact


68,136,70

643,100 mE

643,100 mE643,050 mE643,000 mE

8,136,950 mN

8,136,900 mN

8,136,850 mN

8,136,800 mN

8,136,750 mN

6

643,050 mEm

N643,000 mE642,950 mE

642,950 mE

8,13

6,95

0 m

N8,

136,

900

mN

8,13

6,85

0 m

N8,

136,

800

mN

8,13

6,75

0 m

N

Tristram 80mRL

Inferred Contact

Actual Contact


8,136643,100 mE

643,100 mE643,000 mE

00 mE 642,950 mE

642,950 mE

643,000 mE8,136,950 m

N8,136,900 m

N8,136,850 m

N8,136,800 m

N8,136,750 m

N643,050 mE

643,050 mE

8,8,

136,

950

mN

8,13

6,90

0 m

N8,

136,

850

mN

8,13

6,80

0 m

N8,

136,

750

mN

Tristram 60mRL

Inferred Contact

Actual Contact


8,136,800 mN

8,136,850 mN

643,050 mE

643,050 mE

643,100 mE

643,100 mE

6

6

8,136,750 mN

8,13

6,90

0 m

N643,000 mE642,950 mE

642,950 mE

8,13

6,85

0 m

N8,

136,

950

mN

8,136,950 mN

8,136,900 mN

8,13

6,80

0 m

N

643,000 mE

8,13

6,75

0 m

N00

mN

Tristram 40mRL

Inferred Contact

Actual Contact


8,136,7643,100 mE

643,100 mE643,050 mE643,000 mE

0 mE 642,950 mE

642,950 mE

643,000 mE8,136,950 m

N8,136,900 m

N8,136,850 m

N8,136,800 m

N8,136,750 m

N643,050 mE

mN

8,13

6,95

0 m

N8,

136,

900

mN

8,13

6,85

0 m

N8,

136,

800

mN

8,13

6,75

0 m

N

Tristram 20mRL

Inferred Contact

Actual Contact


8,136,800 mN

8,136,750 mN

8,136,7643,050 mE

643,050 mE

643,100 mE

643,100 mE

8,136,900 mN

8,13

6,95

0 m

N8,

136,

900

mN

643,000 mEmE

mE

642,950 mE

642,950 mE

8,13

6,75

0 m

N8,

136,

800

mN

8,13

6,85

0 m

N8,136,950 m

N8,136,850 m

Nm

N 643,000 mE

Tristram 0mRL

Inferred Contact

Actual Contact


63

9 GRADE MODEL 9.1 Introduction Because any sample result only provides a snapshoot of grade due to the particulate nature of diamonds within the resource it is desirable to have a grade model that will better represent the global grade of the particular pipe. The estimation of grade models has been achieved through the merging of data sets built up over time and include trial mining results as well as small bulk samples. Fundamental to estimating the grade model is the size-frequency distribution for the diamonds. Past diamond recoveries are sufficient to provide robust size-frequency distributions for most of the pipes. Scrutiny of these distributions reveals two slightly different distributions, with the predominantly non-micaceous pipes (PalSac, Kaye, Ector, Gareth) having a greater frequency of larger stones than the predominantly micaceous pipes (Excalibur, Gawain, Ywain). The data for Launfal is ambiguous in that it has characteristics of both types of pipes. The average diamond size-frequency distribution is used as the template for each of the pipes irrespective of their grade. Specific grades are determined from a combination of production history where accurate volumes are known and the results of special grade control samples. Another important element in determining a grade model is the use of diamond numbers as opposed to carats recovered. Again this is because of the particulate nature of the diamond and their size variability. Hence a grade can be determined in terms of the number of stones per Bank Cubic Meter (BCM). The grades are estimated in BCM’s due to the difficulty of ascertaining tonnes for small samples due to the variability of moisture content and rock bulk density. 9.2 Merlin Grade Models Using historic sampling and mining data as well as more recent evaluation data both Resource and Production grade models have been established and these can be compared to historic mining grades in the same format. The grades are established by determining the contribution to grade for each diamond size category. The models rely heavily on past production records of volumes mined and diamonds recovered. Although multiple lithologies have been identified in some of the pipes there has been insufficient drilling for these to be accurately defined and there has been no individual testing of the minority lithologies to ascertain their diamond grades. During the past mining operations the pipes were mined as single entities with no discrimination of the different kimberlite lithologies if they were present. If the different lithologies have differing diamond grades and if their relative abundance changes significantly then this would affect the average diamond grade of the pipe. 9.2.1 Resource Grade Model The Resource Grade Model is not representative of the total diamond content of the rock but reflects the recovered grade established from carefully treated samples. In most instances a lower screen with a slotted aperture of 10mm x 0.8mm is used. As a consequence recoveries of fine diamonds are higher than would be expected from a production process plant which would likely use coarser bottom screens. It is important to note that the grades are based on what was previously mined from the pipes as no sample material deeper than the base of the current open pits has been tested with the exception of PalSac which has had a program of Large Diameter Core Drilling. While this provides an indication of the expected recoverable resource grade no account has been made for any geological complexity known to occur within some of the pipes. 9.2.2 Production Grade Model The Production Resource Grade is representative of the recovered grade using a processing plant similar to the Ashton/RIO production plant used for the 1999 – 2003 operations. This plant had a lower screen with a slotted aperture of 10mm x 0.95mm. Any changes to the aperture of this lower screen will have a significant impact on the recovered grade.

64

9.2.3 Historic Production Grade The Historic Production Grade is representative of the 1999 – 2003 mined grades. However it should be noted that not all production was reported, some records are corrupt and grades based on the DTC size distribution can be slightly different than grades based on the valuation diamond parcels. 9.3 Merlin Size‐Frequency Distribution 9.3.1 DTC Size-Frequency Distribution The production record for the period November 1999 to December 2002 and including the valuation parcels for Gawain and Ywain is used to provide a DTC size-frequency distribution profile representative of the Merlin diamond population (Table 9.1). The diamonds recovered from Merlin during the 1998-2003 mining operations were sized using DTC sieve plates, and in doing so both carat weights and stone numbers were recorded (Table 9.1). Hence the MSS for each DTC size can be calculated. In most instances these recoveries can be allocated to a specific mined flitch with a measured BCM. Prior to RIO assuming responsibility for the mine Ashton Mining had grouped the +12 DTC to +23 DTC size categories thus rendering the data useless for detailed analysis. Analysis of the usable data reveals two slightly different size-frequency distributions which reflect the micaceous higher grade pipes and the non-micaceous lower grade pipes. The DTC size data for Launfal appears to be corrupt or a mix of the two distributions. The data from each recorded mined flitch for each pipe have been assessed and non corrupted flitch data has been selected to establish the Mean Stone Size for each DTC size category. 9.3.2 Weight Size-Frequency Distribution In addition to the DTC sizing of the diamonds, the diamond recoveries were also sized according to their carat weight but with the -0.66ct diamonds still being classified according to DTC sizes (Table 9.2). While carat weights were recorded, no corresponding stone numbers are reported and the recoveries are recorded as production per month from each pipe. The recoveries have not been matched to a flitch and except in rare instances the weight sized recoveries cannot be matched to the DTC sized data. To assimilate the two data sets the Mean Stone Size is used to estimate the number of stones in each weight category. 9.4 Gawain Grade Model For Gawain two main data sets are used to establish grade, these being a valuation parcel which has an accurate mined volume and 3 measured grade control samples. In addition there are NADL ROM recoveries for which mined volumes are only estimates but which provides an expanded diamond distribution against which the grade control samples can be matched. 9.4.1 RIO Records Despite 35,000cts being produced from Gawain there is only sized data available for 4 flitches representing 4,236.48cts (Tables 9.3 & 9.4). Of these two flitches representing 3,634.87cts is the special valuation parcel reported separately by RIO as 3,623.5cts (Table 9.5). The cause of this slight discrepancy is not known. Flitch GWO1680 has sized data for only 290.41cts but 5,222.5cts was reported for this flitch hence there is no measured volume for the 290.41cts. Flitch GWO1690 which is the uppermost flitch in the pipe, reported 311.44cts but has a grade inconsistent with the pipe and hence must also be discarded.

65

9.4.2 Bulk Sample 2006 In 2006 an 86.67 wet tonne sample was processed producing 42.759cts of diamonds (Table 9.6). The sample was HPGR crushed and processed through a MK3 sampling plant using a 0.7mm square lower screen. The volume of the sample was calculated and appears slightly understated. 9.4.3 NADL 2006/2009/2010 ROM Trial mining in 2006, 2009 and 2010 resulted in the recovery of 10,182.5 carats of diamonds (Table 9.7). The recoveries have been weight sized and demonstrate the expected size-frequency distribution. The volume of material processed to produce these diamonds could not be accurately recorded. 9.4.4 Grade Control Samples In 2010 3 grade control samples each of approximately 100 BCM and totalling 306.6 BCM were excavated and processed through the Merlin pilot processing plant (Table 9.8). The 3 samples have been combined and treated as one sample. 9.4.5 Grade Model All of the data sets are matched against the combined grade control samples (Tables 9.9 & 9.10) by adjusting the BCM value until the contribution per size category matches. Due to the small size of the grade control samples the correlation is limited to the -11 DTC size categories. The +0.66ct size categories are taken from the Merlin average production for the micaceous pipes. 9.5 Ywain Grade Model For Ywain grade is based on the 2006 bulk sample and the RIO special valuation sample. In addition there are the 2006 NADL ROM recoveries for which mined volumes are only estimates but which provides an expanded diamond distribution against which the measured samples can be matched. 9.5.1 RIO Records Only 6,558.9cts was produced from Ywain with sized data available for 5 flitches representing 5,664.36cts (Tables 9.11 & 9.12). These five flitches represent the special valuation parcel reported separately by RIO as 5,680.72cts (Table 9.13). 9.5.2 Bulk Sample 2006 In 2006 a 14.1 wet tonne sample was processed producing 14.66cts of diamonds (Table 9.14). The sample was not HPGR crushed due to its extremely weathered nature and processed through a MK3 sampling plant using a 0.7mm square lower screen. The volume of the sample was calculated. 9.5.3 NADL 2006 ROM Trial mining in 2006 resulted in the recovery of 1,817.16 carats of diamonds. The recoveries have been weight sized and demonstrate the expected size-frequency distribution. The volume of material processed to produce these diamonds could not be accurately recorded (Table 9.15). 9.5.4 Grade Model All of the data sets are matched against the 2006 bulk sample (Tables 9.16) by adjusting the BCM value until the contribution per size category matches. Due to the small size of the control sample the correlation is limited to the -11 DTC size categories. The +0.66ct size categories are taken from the Merlin average production for the micaceous pipes.

66

9.6 Excalibur Grade Model The only data pertaining to Excalibur is the RIO Mining data (Table 9.17). No evaluation sampling has been undertaken by NADL. 9.6.1 RIO Records Of the 24 flitches mined only 4 have been fully DTC sized with the majority having all of the +12 DTC size categories combined into one (Table 9.6.1). In comparing the recoveries from the 4 available flitches it can be seen that only two are suitable for grade estimation (Table 9.18). Weight sized recoveries for 116,194.52 carats recovered during the period 2000 to 2001 have been reported (Table 9.19). However there are no accompanying mined volumes to allow direct grade estimations for the weighted size categories. 9.6.2 Grade Model With no grade control samples the resource models are based solely on the historic recovery and the average Merlin production for the micaceous pipes (Table 9.20). The fine diamond recoveries are estimated. 9.7 PalSac Grade Model The grade model for PalSac is based on the assimilation of the RIO mining data and the Large Diameter Core (LDC) and bulk sampling testwork undertaken by Rio. PalSac is unusual in that the pipe expresses itself as two discrete vents at surface, namely Palomides and Sacramore, which coalesce at a depth of approximately 120m to form a single pipe. 9.7.1 RIO Records Palomides Of the 24 flitches mined there are records for only 22 and of these 16 have been fully DTC sized with the remainder having all of the +12 DTC size categories combined into one (Table 9.21). In comparing the recoveries from the 16 available flitches it can be seen that 14 are suitable for grade estimation (Table 9.22). Weight sized recoveries for 49,882.55 carats recovered during the period 1999 to 2002 have been reported (Table 9.23). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.7.2 RIO Records Sacramore Of the 24 flitches mined there are records for only 22 and of these 14 have been fully DTC sized with the remainder having all of the +12 DTC size categories combined into one (Table 9.24). In comparing the recoveries from the 14 available flitches it can be seen that 12 are suitable for grade estimation (Table 9.25). Weight sized recoveries for 48,547.59 carats recovered during the period 1999 to 2002 have been reported (Table 9.26). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.7.3 RIO LDC Drilling PalSac In 2001 a LDC drilling program provided 74.482 tonnes of core in the interval from the base of the Palomides and Sacramore pits to a depth of 100m beneath these pits. This material, representing 53 discrete samples, was crushed and processed producing 18.22 carats of diamonds. The recovery of fine diamonds was poor and one sample accounts for 24 of the 83 diamonds recovered. Although three different phases of kimberlite are identified, these were not tested separately, hence the individual samples are treated as one (Table 9.27& 9.28).

67

9.7.4 RIO Bulk Sample PalSac As part of the LDC drill testing a bulk sample was excavated from flitch PLO1300 in Palomides pit and processed in the same manner as the LDC samples. Although the excavated sample was measured at 750 BCM or approximately 1,500 tonnes, the processes sample is reported as 845.85 dry tonnes. No explanation for this variance is recorded. The sample was processed in two parts using different grade ferrosilicon namely 270D and 150D to compare their efficiency. For the purposes of establishing a grade the samples are combined and treated as one (Table 9.29). The 150D sample has reported 4030 diamonds in the -3DTC size category, which is considered erroneous. This data point has been adjusted as the result does not affect the integrity of the overall sample. 9.7.5 2009 Palomides Pit Cleanup In 2009 the Palomides pit was dewatered and material was scavenged from the base of the pit in preparation for the taking of a measured grade control sample. This processing of this scavenged material resulted in the recovery of 218.27 carats of diamonds (Table 9.30). The volume of the processed material was not accurately recorded. The grade control samples were not excavated. 9.7.6 Grade Model With no specific grade control samples the resource model is based on the historic recovery, the average Merlin production for the non-micaceous pipes, the LDC samples and the bulk sample taken by RIO (Table 9.31). The fine diamond recoveries are estimated using the Palomides cleanup sample data done by NADL in 2009. 9.8 Launfal Grade Model The grade model for Launfal is based on the RIO mining data as no additional evaluation sampling has been undertaken since cessation of the mining operations in 2003. There is geological complexity within this pipe which may explain why the size –frequency distribution fits neither the micaceous pipe distribution nor the non-micaceous pipe distribution. 9.8.1 RIO Records Of the 28 flitches mined there are records for only 21 and of these 8 have been fully DTC sized with the remainder having all of the +12 DTC size categories combined into one (Table 9.32). In comparing the recoveries from the 8 available flitches it can be seen that only 5 are suitable for grade estimation (Table 9.33). Weight sized recoveries for 30,969.08 carats recovered during the period 1999 to 2002 have been reported (Table 9.34). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.8.2 Grade Model With no grade control samples the resource models are based solely on the historic recovery. The fine diamond recoveries are estimated from the recoveries observed in Palomides (Table 9.35). 9.9 Kaye Grade Model The grade model for Kaye is based on the assimilation of the RIO mining data, the trial production undertaken by NADL and 3 grade control samples.

68

9.8.1 RIO Records Of the 8 flitches mined there are records for 7 and of these 5 have been fully DTC sized with the remainder having all of the +12 DTC size categories combined into one (Table 9.36). In comparing the recoveries from the 5 available flitches it can be seen that only 2 are suitable for grade estimation (Table 9.37). Weight sized recoveries for 10,471.97 carats recovered during the period 1999 to 2001 have been reported (Table 9.38). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.8.2 Bulk Sample 2006 In 2006 a 76.6 wet tonne sample was processed producing 10.24cts of diamonds (Table 9.39). The sample was HPGR crushed and processed through a MK3 sampling plant using a 0.7mm square lower screen. The volume of the sample was calculated and appears slightly understated. 9.8.3 NADL 2009/2010 ROM Trial mining in 2009 and 2010 resulted in the recovery of 3,516.47 carats of diamonds (Table 9.40). The recoveries have been weight sized and demonstrate the expected size-frequency distribution. The volume of material processed to produce these diamonds could not be accurately recorded. 9.8.4 Grade Control Samples In 2010 3 grade control samples each of approximately 100 BCM and totalling 293.95 BCM were excavated and processed through the Merlin pilot processing plant (Table 9.41). Sample 10-330-102/103 appears corrupt and has not been used in the grade estimations. The remaining two samples have been combined and are treated as one sample. 9.8.5 Grade Model All of the data sets are matched against the combined grade control samples (Tables 9.42) by adjusting the BCM value until the contribution per size category matches. Due to the small size of the grade control samples the correlation is limited to the -11 DTC size categories. The +0.66ct size categories are taken from the Merlin average production for the non-micaceous pipes. 9.10 Ector Grade Model The grade model for Ector is based on the RIO mining data as no additional evaluation sampling has been undertaken since cessation of the mining operations in 2003. Although Ector is expected to coalesce with Kaye at depth to form a single pipe, this is yet to be demonstrated. 9.10.1 RIO Records Of the 10 flitches mined there are records for 9 and of these 7 have been fully DTC sized and have A recorded BCM with the remainder having all of the +12 DTC size categories combined into one (Table 9.43). In comparing the recoveries from the 7 available flitches it can be seen that only 5 are suitable for grade estimation (Table 9.44). Weight sized recoveries for 2,545.55 carats recovered during the period 2000 to 2001 have been reported (Table 9.45). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.10.2 Grade Model With no grade control samples the resource models are based solely on the historic recovery and the average Merlin production for the non-micaceous pipes (Table 9.46). The fine diamond recoveries have not been estimated.

69

9.11 Gareth Grade Model The grade model for Gareth is based on the RIO mining data as no additional evaluation sampling has been undertaken since cessation of the mining operations in 2003. 9.11.1 RIO Records Of the 24 flitches mined there are records for 19 and of these only 10 flitches have been fully DTC sized and have a recorded BCM with the remainder having all of the +12 DTC size categories combined into one (Table 9.47). In comparing the recoveries from the 10 available flitches it can be seen that only 6 are suitable for grade estimation (Table 9.48). Weight sized recoveries for 6,469.38 carats recovered during the period 2000 to 2002 have been reported (Table 9.49). However there are no accompanying mined flitch volumes to allow direct grade estimations for the weighted size categories. 9.11.2 Grade Model With no grade control samples the resource models are based solely on the historic recovery and the average Merlin production for the non-micaceous pipes (Table 9.50). The fine diamond recoveries have not been estimated. 9.12 Bedevere Grade Model The grade for Bedevere is based on the Ashton bulk sampling program which was undertaken in 1996 (Table 9.51). No additional evaluation sampling has been undertaken since cessation of the mining operations in 2003. Table 9.51: Bedevere RC Drill Sample Results

Drill Hole Interval (m) Sample

Wt (tonnes) Diamonds Carats

Grade (ctpt)

BH408 3 to 33 OB 946 0 0 0 33 to 96 Kimb 3.857 10 0.38 0.098

BH409 7 to 49 OB 1.909 0 0 0 49 to 96 Kimb 3.689 12 1.2315 0.333

Combined Kimb 7.546 22 1.6115 0.21 9.12.1 Grade Model With no detailed diamond recoveries the grade is stated as a global number. While these diamond recoveries provide an indicative grade they are not suitable for a detailed grade model. 9.13 Tristram Grade Model The grade for Tristram is based on the initial Ashton RC bulk sampling program which was undertaken in 1996 (Table 9.52), and a second bucket drill sampling program completed in 2006.

70

Table 9.52: Tristram Bucket drill Sample Results

Merlin Sample HMS Mark III O/S Floats Slimes Dia +4 Dia -4 Total Grade Freq

Sample No Pipe t t t t st ct st ct st ct ct/t st/t

06-012-001 Tristram/1 12.3 1.2 0.9 10.2 1 0.59 13.00 0.78 14.00 1.37 0.11 1.14

06-012-001 Tristram/2 10.2 0.7 0.7 8.8 3.00 0.05 3.00 0.05 0.00 0.29

06-012-001 Total 22.5 1.9 1.7 19.0 1 0.59 16.00 0.83 17.00 1.42 0.063 0.8

9.13.1 Grade Model With no detailed diamond recoveries the grade is stated as a global number. While these diamond recoveries provide an indicative grade they are not suitable for a detailed grade model. 9.14 Summary of Grade Models The Resource Grade Models and Production Grade Models are detailed in Tables 9.53 and 9.54 respectively. The Historic Mining Grades are shown in Table 9.55.

DTC Sieve SExcalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL TOTAL TOTAL+23 8 69 37 20 25 12 17 61 31 45 215 280+21 68 391 280 127 133 64 52 198 112 265 1,033 1,425+19 224 1,268 784 364 187 243 184 554 272 654 3,062 4,080+17 251 1,404 689 310 153 173 154 412 347 577 3,006 3,893+15 326 1,247 746 291 105 172 158 447 315 603 2,913 3,807+13 1,445 5,742 3,205 1,251 530 612 623 1,532 1,614 2,587 12,716 16,554+12 1,474 6,892 4,140 1,321 669 673 627 1,778 1,901 2,816 15,338 19,475+11 4,132 17,812 9,418 3,544 1572 1955 1,813 4,416 5,120 7,659 38,579 49,782+9 9,155 36,126 19,967 6,826 3105 4497 4,408 8,610 11,501 16,757 80,612 104,195+7 9,758 37,543 22,641 8,514 3649 6410 7,344 10,588 14,856 19,817 92,972 121,303+5 20,967 90,873 48,606 15,667 8241 16121 10,713 28,903 35,050 45,329 214,145 275,141+3 6,962 29,301 14,773 4,480 3435 6867 4,233 13,614 17,722 17,264 79,643 101,387‐3 1,095 6,848 2,462 670 1202 2340 2,969 6,581 9,141 4,637 28,001 33,308Total 55,865 235,516 127,748 43,385 23,006 40,139 33,295 77,694 97,982 119,010 572,235 734,630

DTC Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth TOTAL MSS+23 52.07 752.98 385.415 144.32 180.73 103.235 208.055 742.95 325.28 2895.0 10.34+21 280.65 1582.71 1138.915 566.575 393.225 258.325 256.145 885.99 482.90 5845.4 4.102+19 462.09 2716.315 1767.21 1145.965 342.18 533.51 443.465 1259.74 611.53 9282.0 2.275+17 345.93 1948.6 985.86 438.665 188.9 243.33 228.61 588.85 476.87 5445.6 1.399+15 377.21 1338.37 818.16 329.655 91.265 185.73 194.25 493.75 323.55 4151.9 1.091+13 1145.08 4344.445 2427.675 979.27 400.315 452.065 488.665 1219.51 1176.87 12633.9 0.763+12 759.26 3378.065 2019.434 694.445 330.66 307.32 327.955 918.51 920.52 9656.2 0.496+11 1417.81 5808.13 3125.14 1241.65 511.62 594.715 625.405 1529.85 1673.97 16528.3 0.332+9 1775.07 6924.23 3961.176 1404.095 610.85 831.96 760.52 1719.67 2257.64 20245.2 0.194+7 1161.92 4589.71 2740.37 1040.705 465.25 766.4 617.825 1297.16 1821.27 14500.6 0.120+5 1461.65 6350.39 3406.055 1108.23 574.99 1103.345 844.62 1899.10 2431.68 19180.1 0.070+3 257.98 1075.93 549.795 163.91 126.06 244.64 264.85 548.52 631.28 3863.0 0.038‐3 18.62 116.42 41.865 11.385 20.435 39.78 50.48 111.88 155.40 566.3 0.017Total 14853.79 48776.67 29235.84 9268.87 4236.48 5664.355 5311 13215 13289 124793 0.1699

DTC Stones Carats MSS Log MSS DTC Stones Carats MSS Log MSS DTC Stones Carats MSS Log MSS+23 215 2414.67 11.23 1.050 +23 45 336.03 7.47 0.873 +23 20 144.32 7.22 0.858+21 1,033 4346.66 4.21 0.624 +21 265 932.20 3.52 0.546 +21 127 566.575 4.46 0.649+19 3,062 6798.26 2.22 0.346 +19 654 1337.78 2.05 0.311 +19 364 1145.965 3.15 0.498+17 3,006 4228.79 1.41 0.148 +17 577 778.16 1.35 0.130 +17 310 438.665 1.42 0.151+15 2,913 3168.08 1.088 0.036 +15 603 654.20 1.085 0.035 +15 291 329.655 1.133 0.054+13 12,716 9657.17 0.759 ‐0.120 +13 2,587 1997.46 0.772 ‐0.112 +13 1,251 979.27 0.783 ‐0.106+12 15,338 7564.48 0.493 ‐0.307 +12 2,816 1397.24 0.496 ‐0.304 +12 1,321 694.445 0.526 ‐0.279+11 38,579 12762.49 0.331 ‐0.480 +11 7,659 2524.15 0.330 ‐0.482 +11 3,544 1241.65 0.350 ‐0.455+9 80,612 15623.23 0.194 ‐0.713 +9 16,757 3217.88 0.192 ‐0.717 +9 6,826 1404.095 0.206 ‐0.687+7 92,972 11066.33 0.119 ‐0.924 +7 19,817 2393.57 0.121 ‐0.918 +7 8,514 1040.705 0.122 ‐0.913+5 214,145 14931.84 0.070 ‐1.157 +5 45,329 3139.99 0.069 ‐1.159 +5 15,667 1108.23 0.071 ‐1.150+3 79,643 3070.37 0.039 ‐1.414 +3 17,264 628.68 0.036 ‐1.439 +3 4,480 163.91 0.037 ‐1.437‐3 28,001 476.04 0.017 ‐1.770 ‐3 4,637 78.84 0.017 ‐1.770 ‐3 670 11.385 0.017 ‐1.770Total 572,235 96,108 0.17 Total 119,010 19,416 0.16 Total 43,385 9268.87 0.21

Launfal

Stones Selected Flitches Merlin Production

Table 9.1 : Merlin Production DTC Size Profile

PalSac,Kaye, Ector, Gareth Excalibur, Gawain, Ywain

Carats Selected Flitches Merlin Production

‐2.000

‐1.500

‐1.000

‐0.500

0.000

0.500

1.000

1.500

1 2 3 4 5 6 7 8 9 10 11 12 13 PalSac Kaye Ector Gareth

Excalibur, Gawain, Ywain

Launfal

Weight Kaye Ector Gareth Palomides Sacramore TOTAL Weight Carats mss Stones Log St Weight Excalibur Gawain Ywain TOTAL Weight Carats mss Stones Log StSpecial 378.40 40.38 198.19 1171.80 449 2237.84 Spec 2237.84 15.50 144 2.159 Special 270.84 67 50 388.12 Spec 388.12 15.50 25 1.399+10cts 62.17 0.00 0.00 164.23 114 340.05 10cts 340.05 10.30 33 1.519 +10cts 133.70 31 10 174.96 10cts 174.96 10.30 17 1.230+9cts 63.97 0.00 9.67 205.29 166 444.45 9cts 444.45 9.30 48 1.679 +9cts 223.00 10 9 241.78 9cts 241.78 9.30 26 1.415+8cts 74.89 7.86 50.41 294.56 175 602.23 8cts 602.23 8.30 73 1.861 +8cts 198.24 25 25 247.73 8cts 247.73 8.30 30 1.475+7cts 57.37 14.69 35.84 290.77 291 690.13 7cts 690.13 7.30 95 1.976 +7cts 443.35 42 16 501.22 7cts 501.22 7.30 69 1.837+6cts 63.85 0.00 68.55 360.64 330 823.33 6cts 823.33 6.30 131 2.116 +6cts 628.85 32 43 703.56 6cts 703.56 6.30 112 2.048+5cts 148.89 64.15 86.62 830.97 578 1708.85 5cts 1708.85 5.30 322 2.508 +5cts 903.34 42 62 1006.91 5cts 1006.91 5.30 190 2.279+4cts 237.31 45.91 98.72 1116.04 737 2235.35 4cts 2235.35 4.30 520 2.716 +4cts 1636.12 93 92 1820.97 4cts 1820.97 4.30 423 2.627+3cts 287.89 95.48 163.66 2097.59 1,450 4094.12 3cts 4094.12 3.30 1241 3.094 +3cts 3125.63 107 203 3434.76 3cts 3434.76 3.30 1041 3.0178gr 561.65 144.50 352.46 4474.45 2,641 8173.90 2cts 8173.90 2.30 3554 3.551 8gr 6406.74 245 351 7002.80 2cts 7002.80 2.30 3045 3.4846gr 371.94 93.49 218.69 3182.90 1,835 5702.06 1cts 18012.77 1.20 15011 4.176 6gr 4728.98 151 243 5122.55 1cts 15350.97 1.20 12792 4.1075gr 228.32 70.22 136.71 2356.37 1,294 4085.13 0.66cts 9751.01 0.76 12830 4.108 5gr 3179.59 100 124 3403.81 0.66cts 7815.77 0.76 10284 4.0124gr 539.08 144.74 267.17 4635.52 2,639 8225.58 +11 31985.49 0.332 96209 4.983 4gr 6378.78 215 231 6824.60 +11 26910.46 0.330 81654 4.9123gr 591.51 157.28 321.60 5421.36 3,259 9751.01 +9 25612.76 0.195 131526 5.119 3gr 7361.76 212 242 7815.77 +9 23192.75 0.192 120775 5.082+11 1888.12 456.73 1032.29 18220.08 10,388 31985.49 +7 16818.08 0.119 140976 5.149 +11 25291.47 712 907 26910.46 +7 14937.17 0.121 123669 5.092+9 1659.81 361.44 948.16 14426.26 8,217 25612.76 +5 23873.91 0.070 342050 5.534 +9 21796.97 524 872 23192.75 +5 17642.90 0.069 254694 5.406+7 1113.18 253.23 700.26 9413.27 5,338 16818.08 +3 5432.40 0.038 141296 5.150 +7 13918.99 355 663 14937.17 +3 3671.64 0.036 100827 5.004+5 1651.31 425.08 1306.62 13422.69 7,068 23873.91 ‐3 604.42 0.017 35553 4.551 +5 15985.56 518 1,139 17642.90 ‐3 454.24 0.017 26718 4.427+3 427.29 148.35 418.53 2989.29 1,449 5432.40 Total 153441 0.17 921610 +3 3206.52 123 342 3671.64 Total 125499 0.17 736391‐3 65.02 22.02 55.23 332.52 130 604.42 ‐3 376.09 21 57 454.24Total 10471.97 2545.55 6469.38 85406.60 48547.59 153441.09 Total 116194.52 3,623 5,681 125498.7

Weight Launfal Weight Carats mss Stones Log StSpecial 193 Spec 193.33 15.50 12 1.096+10cts 21 10cts 21.30 10.30 2 0.316+9cts 64 9cts 64.44 9.30 7 0.841+8cts 99 8cts 99.07 8.30 12 1.077+7cts 145 7cts 145.13 7.30 20 1.298+6cts 236 6cts 236.40 6.30 38 1.574+5cts 394 5cts 393.95 5.30 74 1.871+4cts 454 4cts 454.39 4.30 106 2.024+3cts 925 3cts 925.39 3.30 280 2.4488gr 1,596 2cts 1595.61 2.30 694 2.8416gr 1,098 1cts 3384.37 1.20 2820 3.4505gr 728 0.66cts 1899.01 0.76 2499 3.3984gr 1,558 +11 6681.74 0.350 19071 4.2803gr 1,899 +9 5593.50 0.206 27193 4.434+11 6,682 +7 3646.60 0.122 29833 4.475+9 5,594 +5 4530.90 0.071 64053 4.807+7 3,647 +3 992.98 0.037 27140 4.434+5 4,531 ‐3 110.97 0.017 6531 3.815+3 993 Total 30969 0.17 180385‐3 111Total 30969.08

Table 9.2: Weight Size Frequency Distribution

0.000

1.000

2.000

3.000

4.000

5.000

6.000

Spec

10cts 9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66c

ts +11 +9 +7 +5 +3 ‐3

PalSac, Kaye, Ector, Gareth

Excalibur, Gawain, Ywain

Launfal

14‐Jul‐01 18‐Sep‐02 18‐Sep‐02 28‐Oct‐02DTC Size Selected* GW01690* GW01620* GW01600* GW01680

+23 180.73 7.325 89.365 84.04 0+21 375.785 3.655 96.49 275.64 17.44+19 307.67 28.125 128.345 151.2 34.51 +17 174.93 21.155 57.135 96.64 13.97+15 82.565 12.755 47.82 21.99 8.7 6161.5 BCM+13 375.545 34.21 114.365 226.97 24.77 DTC Size cts stones mss Weight mss cts st st/BCM Log Cts/BCM+12 312.53 30.525 91.395 190.61 18.13 +23 173.4 24 7.23 Spec 15.50 67.12 4 0.00070 ‐3.15 0.011+11 475.16 41.13 151.86 282.17 36.46 +21 372.13 127 2.93 10cts 10.30 31.21 3 0.0005 ‐3.31 0.005+9 567.95 48.815 180.575 338.56 42.9 +19 279.55 160 1.75 9cts 9.30 9.76 1 0.0002 ‐3.77 0.002+7 428.74 34.635 154.805 239.3 36.51 +17 153.78 127 1.211 8cts 8.30 24.50 3 0.0005 ‐3.32 0.004+5 531.04 39.225 192.255 299.56 43.95 +15 69.81 83 0.841 7cts 7.30 42.32 5 0.0008 ‐3.09 0.007+3 115.2 8.55 39.64 67.01 10.86 +13 341.34 451 0.757 6cts 6.30 31.52 5 0.0008 ‐3.09 0.005‐3 18.225 1.1 3.945 13.18 2.21 +12 282.01 568 0.496 5cts 5.30 41.50 8 0.0013 ‐2.90 0.007

Total 3946.07 311.205 1347.995 2286.87 290.41 +11 434.03 1326 0.327 4cts 4.30 92.93 21 0.0034 ‐2.47 0.015+9 519.14 2627 0.198 3cts 3.30 105.60 32 0.0052 ‐2.28 0.017+7 394.11 3037 0.130 2cts 2.30 207.00 90 0.0146 ‐1.84 0.034+5 491.82 6949 0.071 1cts 1.20 441.60 368 0.060 ‐1.22 0.072+3 106.65 2855 0.037 0.66cts 0.76 245.48 323 0.052 ‐1.28 0.040

14‐Jul‐01 18‐Sep‐02 18‐Sep‐02 28‐Oct‐02 ‐3 17.13 1007 0.017 +11 0.327 655.30 2002 0.32 ‐0.49 0.106DTC Size Selected* GW01690* GW01620* GW01600* GW01680 Total 3634.87 19341 +9 0.198 519.14 2627 0.43 ‐0.37 0.084

+23 25 1 10 14 0 +7 0.130 394.11 3037 0.49 ‐0.31 0.064+21 129 2 22 105 4 +5 0.071 491.82 6949 1.13 0.05 0.080+19 173 13 60 100 14 +3 0.037 106.65 2855 0.46 ‐0.33 0.017+17 142 15 45 82 11 ‐3 0.017 17.13 1007 0.16 ‐0.79 0.003+15 97 14 40 43 8 3,524.67 19,340 3.14 0.57+13 498 47 161 290 32+12 629 61 193 375 40+11 1455 129 495 831 117+9 2885 258 933 1694 220 892 BCM 892 BCM+7 3326 289 1296 1741 323 DTC Sieve Cts St mss cts/bcm st/bcm Weight Carats cum cts % Weight mss Carats St St/BCM Log st/bcm Cts/BCM+5 7540 591 2968 3981 701 +23 7.325 1 7.33 0.008 0.001 Special 0 0.00 0.00 Special 15.50+3 3090 235 1127 1728 345 +21 3.655 2 1.83 0.004 0.002 +10 0 0.00 0.00 +10 10.30‐3 1072 65 232 775 130 +19 28.125 13 2.16 0.032 0.015 +9 0 0.00 0.00 +9 9.30

Total 21061 1720 7582 11759 1945 +17 21.155 15 1.410 0.024 0.017 +8 0 0.00 0.00 +8 8.300.0509 +15 12.755 14 0.911 0.014 0.016 +7 7.31 7.31 0.02 +7 7.31 7.31 1 0.001 ‐2.95 0.008

+13 34.21 47 0.728 0.038 0.053 +6 0 7.31 0.02 +6 6.30+12 30.525 61 0.500 0.034 0.068 +5 0 7.31 0.02 +5 5.30

Flitch BCM received sized sold Cts/BCM +11 41.13 129 0.319 0.046 0.145 +4 3.83 11.14 0.04 +4 4.30 3.83 1 0.001 ‐2.95 0.004GWO1690 892 311.44 311.205 311.44 0.35 +9 48.815 258 0.189 0.055 0.289 +3 9.27 20.41 0.07 +3 3.30 9.27 3 0.003 ‐2.47 0.010GWO1680 9383 5,222.50 290.41 5,222.50 0.56 +7 34.635 289 0.120 0.039 0.324 8gr 22.13 42.54 0.14 +2 2.30 22.13 8 0.009 ‐2.05 0.025GWO1620 2435.5 1,348.06 1,348.00 1,348.06 0.55 +5 39.225 591 0.066 0.044 0.663 6gr 4.69 47.23 0.15 +1 1.20 41.63 33 0.037 ‐1.43 0.047GWO1600 3726 2,277.03 2,286.87 10,939.63 0.61 +3 8.55 235 0.036 0.010 0.263 5gr 10.33 57.56 0.18 +.66 0.760 17.47 28 0.031 ‐1.50 0.020GWO1500 32363.5 16,842.10 8,179.50 0.52 ‐3 1.1 65 0.017 0.001 0.073 4gr 26.61 84.17 0.27 +11 0.319 70.03 208 0.233 ‐0.63 0.079GWO1400 9,802.98 Total 311.205 1720 0.18 0.35 1.93 3gr 17.47 101.64 0.33 +9 0.189 49.23 258 0.289 ‐0.54 0.055

48,800.00 26,001.13 4,236.48 35,804.11 +11 70.03 171.67 0.55 +7 0.120 32.65 289 0.324 ‐0.49 0.0376,161.50 3,634.87 0.59 +9 49.23 220.90 0.71 +5 0.066 45.17 591 0.663 ‐0.18 0.051

+7 32.65 253.55 0.81 +3 0.036 11.11 235 0.263 ‐0.58 0.012Export Sale Number Valuation Sales +5 45.17 298.72 0.96 -3 0.017 1.38 65 0.073 ‐1.14 0.002ADS#1 ‐ May 99 +3 11.11 309.83 0.996 Total 311.21 1720 1.9 0.35ADS#2 ‐ 7 June 1999 -3 1.38 311.21 1.00ADS#3 ‐ 14 July 1999 Total 311.21ADS#4 ‐ Sept / Oct 1999ADS#5 ‐ Nov / Dec 1999ADS#6 ‐ 28 Feb 2000ADS#7 ‐ 8 May 2000ADS#8 ‐ 12 July 2000ADS#9 ‐ 23 Aug 2000ADS#10 ‐ 2 Oct 2000ADS#11 ‐ 29 Nov 2000ADS#12 ‐ 2001ADS#13 ‐ 2001ADS#14 ‐ 2001 311.44ADS#15 ‐ 2001ADS#16 ‐ 2002ADS#17 ‐ 2002ADS#18 ‐ 2002ADS#19 ‐ 2003 3,623.00 35,492.67

Total 3,623.00 35,804.11

Table 9.3: GAWAIN RIO ROM 1999 ‐ 2003


Valuation Sizing FL GW1690


Carats

Flitches GW1600/1620 RIO SPECIAL PARCEL(Flitches GW1600/1620 )

Flitch GW1690 DTC Sizing VALUATION SIZING Flitch GW1690

CaratsCts/BCM SelectedDTC Sieve Carats Cts/BCM Stones St/BCM Log st/BCM Stones St/BCM Log st/BCM Stones St/BCM Log st/BCM Stones St/BCM Log st/BCM Stones St/BCM Log st/BCM MSS

+23 173.41 0.0281 24 0.0039 ‐2.4095 1 0.0011 ‐2.9504 10 0.0041 14 0.0038 ‐2.4251 0 0.0000 7.23+21 372.13 0.0604 127 0.0206 ‐1.6859 2 0.0022 ‐2.6493 22 0.0090 ‐2.0442 105 0.0282 ‐1.5501 4 0.0004 ‐3.3703 2.93+19 279.55 0.0454 160 0.0260 ‐1.5856 13 0.0146 ‐1.8364 60 0.0246 ‐1.6084 100 0.0268 ‐1.5712 14 0.0015 ‐2.8262 1.75+17 153.78 0.0250 127 0.0206 ‐1.6859 15 0.0168 ‐1.7743 45 0.0185 ‐1.7334 82 0.0220 ‐1.6574 11 0.0012 ‐2.9309 1.21+15 69.81 0.0113 83 0.0135 ‐1.8706 14 0.0157 ‐1.8042 40 0.0164 ‐1.7845 43 0.0115 ‐1.9378 8 0.0009 ‐3.0693 0.84+13 341.34 0.0554 451 0.0732 ‐1.1355 47 0.0527 ‐1.2783 161 0.0661 ‐1.1798 290 0.0778 ‐1.1088 32 0.0034 ‐2.4672 0.76+12 282.01 0.0458 568 0.0922 ‐1.0353 61 0.0684 ‐1.1650 193 0.0792 ‐1.1010 375 0.1006 ‐0.9972 40 0.0043 ‐2.3703 0.50+11 434.03 0.0704 1,326 0.2152 ‐0.6671 129 0.1446 ‐0.8398 495 0.2032 ‐0.6920 831 0.2230 ‐0.6516 117 0.0125 ‐1.9042 0.327+9 519.14 0.0843 2,627 0.4264 ‐0.3702 258 0.2892 ‐0.5387 933 0.3831 ‐0.4167 1694 0.4546 ‐0.3423 220 0.0234 ‐1.6299 0.198+7 394.11 0.0640 3,037 0.4929 ‐0.3072 289 0.3240 ‐0.4895 1296 0.5321 ‐0.2740 1741 0.4673 ‐0.3304 323 0.0344 ‐1.4631 0.130+5 491.82 0.0798 6,949 1.1278 0.0522 591 0.6626 ‐0.1788 2968 1.2186 0.0859 3981 1.0684 0.0287 701 0.0747 ‐1.1266 0.071+3 106.65 0.0173 2,855 0.4634 ‐0.3341 235 0.2635 ‐0.5793 1127 0.4627 ‐0.3347 1728 0.4638 ‐0.3337 345 0.0368 ‐1.4345 0.037‐3 17.13 0.0028 1,007 0.1634 ‐0.7867 65 0.0729 ‐1.1375 232 0.0953 ‐1.0211 775 0.2080 ‐0.6819 130 0.0139 ‐1.8584 0.017

Total 3,634.87 0.59 19,341 3.1 1720 1.93 7582 3.1 11759 3.2 1945 0.2BCM incorrect9,3836,162 892 2435.5 3726

290.410.590 0.349 0.553 0.614 0.0313,635 311.205 1347.995 2286.87

GW01680

Table 9.4: Comprison of Mined Flitch

Selected Flitch* GW01690 GW01620* GW01600*

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

GWO1690

GWO1620

GWO1600

GWO1680

Model 6161.5 BCMWeight cts Weight mss cts cts/BCM st St/BCM Log st/BCMSpec 67.12 Special 15.50 67.1 0.0109 4 0.0006 ‐3.1910cts 31.21 +10 10.30 31.2 0.0051 3 0.0005 ‐3.319cts 9.76 +9 9.30 9.8 0.0016 1 0.0002 ‐3.798cts 24.50 +8 8.30 24.5 0.0040 3 0.0005 ‐3.317cts 42.32 +7 7.30 42.3 0.0069 5 0.0008 ‐3.096cts 31.52 +6 6.30 31.5 0.0051 5 0.0008 ‐3.095cts 41.50 +5 5.30 41.5 0.0067 8 0.0013 ‐2.894cts 92.93 +4 4.30 92.9 0.0151 21 0.0034 ‐2.473cts 106.60 +3 3.30 106.6 0.0173 32 0.0052 ‐2.288‐10gr 244.87 +2 2.30 244.9 0.0397 106 0.0172 ‐1.766gr 150.50 +1 1.20 465.6 0.0756 388 0.0630 ‐1.205gr 99.77 +.66 0.76 212.4 0.0345 279 0.0453 ‐1.344gr 215.29 +11 0.327 711.6 0.1155 1863 0.3024 ‐0.523gr 212.42 +9 0.198 524.0 0.0850 2651 0.4303 ‐0.37+11 711.59 +7 0.130 354.9 0.0576 2735 0.4439 ‐0.35+9 524.02 +5 0.071 518.3 0.0841 7322 1.1883 0.07+7 354.91 +3 0.037 123.4 0.0200 3303 0.5361 ‐0.27+5 518.26 -3 0.017 21.0 0.0034 1232 0.2000 ‐0.70+3 123.41 Total 3,623.5 0.59 19961 3.24‐3 20.96Total 3623.46

TABLE 9.5: RIO SPECIAL VALUATION PARCEL

43.38 BCMSample No Weight carats stones Actual mss st/BCM Cts/BCM mss Cts Cts/BCMSieve Plate Spec 0 15.50

DTC carats stones carats stones carats stones 10cts 0 10.303CTS 3.479 1 3.479 1 9cts 0 9.306GR 1.767 1 1.767 1 8cts 0 8.305GR 1.214 1 1.214 1 7cts 0 7.304GR 1.082 1 1.082 1 6cts 0 6.303GR 3.139 4 3.139 4 5cts 0 5.3012 3.413 7 3.413 7 4cts 0 4.3011 6.491 20 0.084 1 6.575 21 3cts 3.479 1 3.479 0.02 0.080 3.30 3.300 0.07607199 3.808 17 0.301 4 4.109 21 2cts 0 2.307 3.358 25 0.468 7 3.826 32 1cts 4.063 3 1.354 0.07 0.094 1.20 3.600 0.08298766 3.445 41 0.425 9 3.870 50 0.66cts 3.139 4 0.785 0.09 0.072 0.76 3.040 0.07007845 1.653 29 1.505 46 3.158 75 +11 9.988 28 0.357 0.65 0.230 0.327 9.165 0.21127333 1.365 41 1.569 74 2.934 115 +9 4.109 21 0.196 0.48 0.095 0.198 4.150 0.09566432 0.182 9 1.326 89 1.508 98 +7 3.826 32 0.120 0.74 0.088 0.130 4.153 0.09572551 0.054 3 2.631 234 2.685 237 +5 7.028 125 0.056 2.88 0.162 0.071 8.847 0.2039388

34.450 200 8.309 464 42.759 664 +3 2.934 115 0.026 2.65 0.068 0.037 4.296 0.0990291‐1 1.177 1.177 0 ‐3 4.193 335 0.013 7.72 0.097 0.017 5.695 0.1312817

Total 34.450 200 9.486 464 43.936 664 42.759 664 0.064 15.31 0.99 46.25 1.07

+1mm Slot ‐1mm Slot Total06‐006‐002

Table 9.6: GAWAIN ‐ NADL BULK SAMPLE 2006

Model 86.76 wet tonnes ‐ Moisture 27.37% ‐ 43.38bcm(SG 2.0) 86.76 wet tonnes ‐ 43.38bcm(SG 2.0)

Weight carats* stones* Weight carats stones mss Weight Actual mss carats stonesSpecial 26.78 2 Special 26.78 2 13.4 Spec 13.4 26.8 2+10cts 10.77 1 +10cts 10.77 1 10.8 10cts 10.8 10.8 19cts 0.00 0 9cts 0.00 0 0 9cts 0 0.0 0+8cts 0.00 0 +8cts 0.00 0 0 8cts 0 0.0 0+7cts 22.45 3 +7cts 22.45 3 7.5 7cts 7.48 22.5 3+6cts 30.98 5 +6cts 30.98 5 6.2 6cts 6.20 31.0 5+5cts 41.76 8 +5cts 41.76 8 5.2 5cts 5.22 41.8 8+4cts 80.35 19 +4cts 80.35 19 4.2 4cts 4.23 80.4 19+3cts 137.83 42 +3cts 137.83 42 3.3 3cts 3.28 137.8 42+10gr 45.14 17 2cts 2.17 247.0 114+8gr 201.86 97 +2cts 247.00 114 2.2 1cts 1.24 563.6 456+6gr 185.25 117 0.66cts 0.76 223.3 293+5gr 147.49 114 +11 0.382 820.0 2148+4gr 230.87 225 +1cts 563.61 456 1.236 +9 0.213 677.5 3176+3gr 223.27 293 +0.66cts 223.27 293 0.762 +7 0.120 462.4 3843+12 +5 0.056 791.7 14038+11 820.00 2,148 +11 820.00 2148 0.3817 +3 0.033 400.5 12205+9 677.54 3,176 +9 677.54 3176 0.2134 ‐3 0.017 271.6 16382+7 462.43 3,843 +7 462.43 3843 0.1203 4808.54 52735+5 791.65 14,038 +5 791.65 14038 0.0564+3 400.52 12,205 +3 400.52 12205 0.0328‐3 271.60 16,382 ‐3 271.60 16382 0.0166

Total 4808.54 52735 4808.54 52735 0.09* Actual

Weight Nov‐06 Oct‐06 Total cts Weight cts stones* Weight Actual mss cts stones mss CtsSpecial 0.00 0.00 0 Spec 0 0 Spec 13.39 26.8 2 15.5 3110cts 14.60 10.60 25.20 10cts 25.20 2 10cts 11.99 35.97 3 10.3 319cts 9.76 9.82 19.58 9cts 19.58 2 9cts 9.79 19.58 2 9.3 198cts 24.36 7.84 32.20 8cts 32.20 4 8cts 8.05 32.20 4 8.3 337cts 7.33 0.00 7.33 7cts 7.33 1 7cts 7.45 29.78 4 7.3 296cts 13.27 19.05 32.32 6cts 32.32 5 6cts 6.33 63.30 10 6.3 635cts 35.84 31.43 67.26 5cts 67.26 13 5cts 5.19 109.02 21 5.3 1114cts 46.19 24.64 70.83 4cts 70.83 17 4cts 4.23 151.18 36 4.3 1543cts 102.15 44.73 146.88 3cts 146.88 45 3cts 3.28 284.71 87 3.3 2868GR 170.72 91.40 262.12 2cts 262.12 121 2cts 2.17 509.12 235 2.3 5406GR 130.64 0.00 130.64 1cts 574.43 465 1cts 1.24 1,138.04 921 1.2 1,1055GR 82.78 103.78 186.56 0.66cts 243.11 319 0.66cts 0.762 466.37 612 0.76 4654GR 169.24 87.99 257.23 +11 988.31 2589 +11 0.382 1,808.31 4738 0.382 1,8103GR 169.81 73.30 243.11 +9 770.43 3611 +9 0.213 1,447.97 6787 0.213 1,448

+11 DTC 662.25 326.06 988.31 +7 552.26 4589 +7 0.120 1,014.69 8432 0.120 1,015+9 DTC 519.95 250.48 770.43 +5 991.81 17587 +5 0.056 1,783.46 31625 0.056 1,783+7 DTC 362.55 189.71 552.26 +3 361.88 11028 +3 0.033 762.39 23233 0.033 762+5 DTC 620.06 371.75 991.81 ‐3 228.03 13754 ‐3 0.017 499.63 30136 0.017 500+3 DTC 297.11 64.77 361.88 5,373.98 54,152 0.095 10182.5 106887 10,185.76‐3 DTC 189.68 38.35 228.03

3628.28 1745.70 5373.98 *Calculated

2006 ROM

MODEL

2009 to 28 Apr 2010 rom

2006 rom 2006 rom

2009 to 28 Apr 2010 rom

Combined 2006/2009/2010 ROM

Table 9.7: GAWAIN ‐ NADL ROM 2006/2009/2010

2009 to 28 Apr 2010 rom

BCM/Tonnages are not accurately known2009/2010 ROM

Sample BCM

DTC Size carats stones carats stones carats stones cts st Actual 306.6 BCMSpecial 0.00 0 Weight cts st mss st/BCM Log Cts/BCM+10cts 0.00 0 Spec 0 0 0 09cts 0.00 0 10cts 0 0 0 0+8cts 0.00 0 9cts 0 0 0 0+7cts 0.00 0 8cts 0 0 0 0+6cts 6.55 1 6.55 1 7cts 0 0 0 0+5cts 0.00 0 6cts 6.55 1 6.55 0.0033 ‐2.49 0.0214+4cts 0.00 0 5cts 0 0 0 0+3cts 3.79 1.00 3.79 1 4cts 0 0 0 0+10gr 2.50 1.00 2.50 1 3cts 3.79 1 3.79 0.0033 ‐2.49 0.0123+8gr 4.22 2 6.00 3.00 1.83 1 12.05 6 2cts 14.56 7 2.08 0.0228 ‐1.64 0.0475+6gr 4.72 3 6.62 4.00 4.62 3 15.96 10 1cts 37.65 31 1.21 0.101 ‐1.00 0.1228+5gr 1.28 1 1.28 1.00 1.27 1 3.83 3 0.66cts 15.32 20 0.77 0.065 ‐1.19 0.0500+4gr 3.65 4 8.06 8.00 6.16 6 17.87 18 +11 43.91 124 0.35 0.40 ‐0.39 0.1432+3gr 6.03 8 3.64 5.00 5.64 7 15.32 20 +9 34.68 177 0.196 0.58 ‐0.24 0.1131+12 5.46 13 6.46 14.00 5.64 14 17.56 41 +7 22.76 182 0.125 0.59 ‐0.23 0.0742+11 6.37 18 9.97 34.00 10.01 31 26.34 83 +5 46.41 717 0.065 2.34 0.37 0.1514+9 10.01 50 10.18 57.00 14.49 70 34.68 177 +3 20.49 666 0.031 2.17 0.34 0.0668+7 6.36 53 6.95 52.00 9.45 77 22.76 182 ‐3 17.45 1244 0.014 4.06 0.61 0.0569+6 5.62 68 9.74 124.00 8.92 108 24.28 300 263.55 3170 10.3 0.86

+5 5.88 107 8.44 162.00 7.82 148 22.13 417+3 5.53 174 7.14 234.00 7.82 258 20.49 666‐3 3.77 259 6.72 486.00 6.96 499 17.45 1244

Total 75.43 761 97.48 1186.00 90.64 1,223 263.55 3170Cts/CM 0.71 1.05 0.84 0.86St/BCM 7.2 12.8 11.3 10.34

306.6

Grade Control Samples 2010

Table 9.8: GRADE CONTROL SAMPLES 2010

Grade Control Samples 2010

Total10‐300‐008 10‐300‐009 10‐300‐010

106.4 92.4 107.8

6161.5 BCM 43.38 BCM 11740 BCM* *Estimated 306.6 BCMWeight mss cts st St/BCM Log ct/BCM Weight carats stones st/BCM Log ct/BCM Weight cts st st/BCM Log ct/BCM Weight cts st st/BCM Log ct/BCMSpec 15.50 67.1 4 0.001 ‐3.19 0.0109 Spec 0.000 0 Spec 26.78 2 0.00017 ‐3.77 0.00 Spec 0.00 0 0.0 0.0010cts 10.30 31.2 3 0.000 ‐3.31 0.0051 10cts 0.000 0 10cts 35.97 3 0.00026 ‐3.59 0.00 10cts 0.00 0 0.0 0.009cts 9.30 9.8 1 0.000 ‐3.79 0.0016 9cts 0.000 0 9cts 19.58 2 0.00017 ‐3.77 0.00 9cts 0.00 0 0.0 0.008cts 8.30 24.5 3 0.000 ‐3.31 0.0040 8cts 0.000 0 8cts 32.20 4 0.00034 ‐3.47 0.00 8cts 0.00 0 0.0 0.007cts 7.30 42.3 5 0.001 ‐3.09 0.0069 7cts 0.000 0 7cts 29.78 4 0.00034 ‐3.47 0.00 7cts 0.00 0 0.0 0.006cts 6.30 31.5 5 0.001 ‐3.09 0.0051 6cts 0.000 0 6cts 63.30 10 0.00085 ‐3.07 0.01 6cts 6.55 1 0.0033 ‐2.49 0.025cts 5.30 41.5 8 0.001 ‐2.89 0.0067 5cts 0.000 0 5cts 109.02 21 0.00179 ‐2.75 0.01 5cts 0.00 0 0.0 0.004cts 4.30 92.9 21 0.003 ‐2.47 0.0151 4cts 0.000 0 4cts 151.18 36 0.00305 ‐2.52 0.01 4cts 0.00 0 0.0 0.003cts 3.30 106.6 32 0.005 ‐2.28 0.0173 3cts 3.479 1 0.0231 ‐1.64 0.08 3cts 284.71 87 0.00739 ‐2.13 0.02 3cts 3.79 1 0.0033 ‐2.49 0.012cts 2.30 244.9 106 0.017 ‐1.76 0.0397 2cts 0.000 0 2cts 509.12 235 0.02002 ‐1.70 0.04 2cts 14.56 7 0.0228 ‐1.64 0.051cts 1.20 465.6 388 0.063 ‐1.20 0.0756 1cts 4.063 3 0.069 ‐1.16 0.09 1cts 1138.04 921 0.07843 ‐1.11 0.10 1cts 37.65 31 0.101 ‐1.00 0.12

0.66cts 0.76 212.4 279 0.045 ‐1.34 0.0345 0.66cts 3.139 4 0.092 ‐1.04 0.07 0.66cts 466.37 612 0.05213 ‐1.28 0.04 0.66cts 15.32 20 0.065 ‐1.19 0.05+11 0.327 711.6 1863 0.302 ‐0.52 0.1155 +11 9.988 28 0.65 ‐0.19 0.23 +11 1808.31 4738 0.404 ‐0.39 0.15 +11 43.91 124 0.404 ‐0.39 0.14+9 0.198 524.0 2651 0.430 ‐0.37 0.0850 +9 4.109 21 0.48 ‐0.32 0.09 +9 1447.97 6787 0.578 ‐0.24 0.12 +9 34.68 177 0.577 ‐0.24 0.11+7 0.130 354.9 2735 0.444 ‐0.35 0.0576 +7 3.826 32 0.74 ‐0.13 0.09 +7 1014.69 8432 0.718 ‐0.14 0.09 +7 22.76 182 0.59 ‐0.23 0.07+5 0.071 518.3 7322 1.188 0.07 0.0841 +5 7.028 125 2.88 0.46 0.16 +5 1783.46 31625 2.694 0.43 0.15 +5 46.41 717 2.34 0.37 0.15+3 0.037 123.4 3303 0.536 ‐0.27 0.0200 +3 2.934 115 2.65 0.42 0.07 +3 762.39 23233 1.979 0.30 0.06 +3 20.49 666 2.17 0.34 0.07‐3 0.017 21.0 1232 0.200 ‐0.70 0.0034 ‐3 4.193 335 7.72 0.89 0.10 ‐3 499.63 30136 2.567 0.41 0.04 ‐3 17.45 1244 4.06 0.61 0.06

3,623.5 19961 3.24 0.59 42.759 664 15.31 0.99 10182.52 106887 9.10 0.87 264 3170 10.34 0.86

Table 9.9: SUMMARY OF GAWAIN PROCESSING

NADL 2006/2009/2010 grade control samples 2010NADL Bulk Sample 2006RIO SPECIAL PARCEL(Flitches GW1600/1620 )

‐5.00

‐4.00

‐3.00

‐2.00

‐1.00

0.00

1.00

2.00

Spec 10cts 9cts 8cts 7cts 6cts 5cts 4cts 3cts 2cts 1cts 0.66cts +11 +9 +7 +5 +3 ‐3

RIO VAL SAMPLE

2006 Bulk Sample

ROM 2006/2009/2010

Grade Control Samples

*No Crush *Adjusted *HPGR Crush *Adjusted *HPGR Crush4600 BCM* 45 BCM*

Weight st st/BCM Log st/BCM Cts/BCM mss Weight st/BCM Log st/BCM Cts/BCM Weight carats stones st/BCM Log st/BCM ct/BCM Weight st/BCM Log st/BCM Cts/BCMSpec 4 0.001 ‐3.0607 0.0135 15.5 Spec 0.00017 ‐3.7686 0.0026 Spec 0.000 0 Spec10cts 3 0.001 ‐3.1856 0.0067 10.3 10cts 0.00026 ‐3.5925 0.0026 10cts 0.000 0 10cts9cts 1 0.000 ‐3.6628 0.0020 9.3 9cts 0.00017 ‐3.7686 0.0016 9cts 0.000 0 9cts8cts 3 0.001 ‐3.1856 0.0054 8.3 8cts 0.00034 ‐3.4676 0.0028 8cts 0.000 0 8cts7cts 5 0.001 ‐2.9638 0.0079 7.3 7cts 0.00034 ‐3.4676 0.0025 7cts 0.000 0 7cts6cts 5 0.001 ‐2.9638 0.0068 6.3 6cts 0.00085 ‐3.0697 0.0054 6cts 0.000 0 6cts 0.0033 ‐2.4866 0.02055cts 8 0.002 ‐2.7597 0.0092 5.3 5cts 0.0018 ‐2.7474 0.0095 5cts 0.000 0 5cts4cts 21 0.005 ‐2.3405 0.0196 4.3 4cts 0.0030 ‐2.5164 0.0131 4cts 0.000 0 4cts3cts 32 0.007 ‐2.1576 0.0230 3.3 3cts 0.0074 ‐2.1314 0.0244 3cts 3.479 1 0.0222 ‐1.65 0.08 3cts 0.0033 ‐2.4866 0.01082cts 106 0.023 ‐1.6375 0.0530 2.3 2cts 0.0200 ‐1.6986 0.0460 2cts 0.000 0 2cts 0.023 ‐1.6415 0.05251cts 388 0.084 ‐1.0739 0.1012 1.2 1cts 0.0784 ‐1.1055 0.0941 1cts 4.063 3 0.067 ‐1.18 0.09 1cts 0.101 ‐0.9952 0.1213

0.66cts 279 0.061 ‐1.2172 0.0461 0.76 0.66cts 0.0521 ‐1.2829 0.0396 0.66cts 3.139 4 0.089 ‐1.05 0.07 0.66cts 0.065 ‐1.1855 0.0496+11 1863 0.405 ‐0.3925 0.1335 0.382 +11 0.404 ‐0.3941 0.1542 +11 9.988 28 0.62 ‐0.21 0.22 +11 0.404 ‐0.3932 0.1545+9 2651 0.576 ‐0.2393 0.1107 0.213 +9 0.578 ‐0.2380 0.1233 +9 4.109 21 0.47 ‐0.33 0.09 +9 0.577 ‐0.2386 0.1232+7 2735 0.595 ‐0.2258 0.0718 0.120 +7 0.72 ‐0.1437 0.0864 +7 3.826 32 0.71 ‐0.15 0.09 +7 0.59 ‐0.2265 0.0714+5 7322 1.592 0.2019 0.1103 0.056 +5 2.69 0.4304 0.1519 +5 7.028 125 2.78 0.44 0.16 +5 2.34 0.3689 0.1319+3 3303 0.718 ‐0.1438 0.0261 0.033 +3 1.98 0.2964 0.0649 +3 2.934 115 2.56 0.41 0.07 +3 2.172 0.3369 0.0713‐3 1232 0.268 ‐0.5721 0.0046 0.017 ‐3 2.57 0.4094 0.0426 ‐3 4.193 335 7.44 0.87 0.09 ‐3 4.057 0.6082 0.0673

Total 19961 4.34 0.75 Total 9.10 0.87 42.759 664 14.76 0.95 10.34 0.87

204000 BCM*Weight mss Carats Stones St/BCM Log st/BCM Cts/BCM st/BCM Log st/BCM Cts/BCM MSSSpec 15.50 388.12 25 0.00012275 ‐3.911 0.002 0.00012 ‐3.91 0.0019 15.510cts 10.30 174.96 17 8.3267E‐05 ‐4.080 0.001 0.0001 ‐4.08 0.0009 10.39cts 9.30 241.78 26 0.00012744 ‐3.895 0.001 0.0001 ‐3.89 0.0012 9.38cts 8.30 247.73 30 0.00014631 ‐3.835 0.001 0.0001 ‐3.83 0.0012 8.37cts 7.30 501.22 69 0.00033657 ‐3.473 0.002 0.0003 ‐3.47 0.0025 7.36cts 6.30 703.56 112 0.00054743 ‐3.262 0.003 0.0005 ‐3.26 0.0034 6.35cts 5.30 1006.91 190 0.00093129 ‐3.031 0.005 0.0009 ‐3.03 0.0049 5.34cts 4.30 1820.97 423 0.0021 ‐2.683 0.009 0.0021 ‐2.68 0.0089 4.33cts 3.30 3434.76 1041 0.0051 ‐2.292 0.017 0.0051 ‐2.29 0.0168 3.32cts 2.30 7002.80 3045 0.0149 ‐1.826 0.034 0.0149 ‐1.83 0.0343 2.31cts 1.20 15350.97 12792 0.0627 ‐1.203 0.075 0.0627 ‐1.20 0.0752 1.2

0.66cts 0.76 7815.77 10284 0.0504 ‐1.297 0.038 0.0652 ‐1.19 0.0496 0.76+11 0.330 26910.46 81654 0.400 ‐0.398 0.132 0.404 ‐0.39 0.1545 0.382+9 0.192 23192.75 120775 0.592 ‐0.228 0.114 0.592 ‐0.23 0.1263 0.213+7 0.121 14937.17 123669 0.606 ‐0.217 0.073 0.606 ‐0.22 0.0729 0.120+5 0.069 17642.90 254694 1.248 0.096 0.086 2.778 0.44 0.1567 0.056+3 0.036 3671.64 100827 0.494 ‐0.306 0.018 2.556 0.41 0.0839 0.033‐3 0.017 454.24 26718 0.131 ‐0.883 0.002 7.444 0.87 0.1234 0.017

Total 0.170 125498.704 736391 3.61 0.62 14.53 0.92

Cum Cum % Cum Cum % Cum Cum %Weight ct/BCM ct/BCM ct/BCM Weight ct/BCM ct/BCM ct/BCM Weight ct/BCM ct/BCM ct/BCMSpec 0.002 0.002 0.21% Spec 0.002 0.002 0.31% Spec 0.0109 0.011 1.83%10cts 0.0009 0.0028 0.30% 10cts 0.0009 0.0028 0.45% 10cts 0.0051 0.0218 3.66%9cts 0.0012 0.0039 0.43% 9cts 0.0012 0.0039 0.64% 9cts 0.0016 0.0269 4.51%8cts 0.0012 0.0052 0.56% 8cts 0.0012 0.0052 0.84% 8cts 0.0040 0.0284 4.77%7cts 0.0025 0.0076 0.83% 7cts 0.0025 0.0076 1.24% 7cts 0.0069 0.0324 5.44%6cts 0.0034 0.0111 1.20% 6cts 0.0034 0.0111 1.80% 6cts 0.0051 0.0393 6.60%5cts 0.0049 0.0160 1.74% 5cts 0.0049 0.0160 2.60% 5cts 0.0067 0.0444 7.45%4cts 0.0089 0.0249 2.71% 4cts 0.0089 0.0249 4.05% 4cts 0.0151 0.0511 8.59%3cts 0.0168 0.0418 4.55% 3cts 0.0168 0.0418 6.79% 3cts 0.0173 0.0662 11.12%2cts 0.0343 0.0761 8.28% 2cts 0.0343 0.0761 12.37% 2cts 0.0397 0.0835 14.02%1cts 0.0752 0.1513 16.48% 1cts 0.0752 0.1513 24.60% 1cts 0.0756 0.1233 20.70%

0.66cts 0.0496 0.2009 21.87% 0.66cts 0.0383 0.1897 30.83% 0.66cts 0.0345 0.1988 33.38%+11 0.1545 0.3554 38.69% +11 0.1319 0.3216 52.27% +11 0.1155 0.2333 39.17%+9 0.1263 0.4817 52.44% +9 0.1137 0.4353 70.75% +9 0.0850 0.3488 58.56%+7 0.0729 0.5547 60.38% +7 0.0732 0.5085 82.65% +7 0.0576 0.4338 72.84%+5 0.1567 0.7113 77.43% +5 0.0865 0.5950 96.71% +5 0.0841 0.4914 82.51%+3 0.0839 0.7952 86.56% +3 0.0180 0.6130 99.64% +3 0.0200 0.5755 96.64%-3 0.1234 0.9186 100.00% -3 0.0022 0.6152 100.00% -3 0.0034 0.5956 100.00%

0.92 0.62 0.59

Table 9.10: GAWAIN MODEL GRADE

NADL Grade Control*RIO Special Parcel* NADL 2006/2009/2010* NADL Bulk Sample 2006

Resource Model Production Model RIO Special Parcel

Resource ModelMerlin Average Production ‐ micaceous pipes

‐5.000

‐4.000

‐3.000

‐2.000

‐1.000

0.000

1.000

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

Merlin Average Production

RIO Special Parcel

NADL ROM 2006/2009/2010

NADL Grade Control

19‐Jan‐00 16-Aug-02 16-Aug-02 15-Aug-02 23-Sep-02 23-Sep-02DTC Sieve Size Total Carats 16Aug‐23Sep YW01675 YW01650 YW01620 YW01600 YW01580 YW01520 DTC Sieve 16Aug‐23Sep Cts/BCM 16Aug‐23Sep St/BCM MSS

+23 103.24 103.235 30.275 0 26.510 20.510 25.940 +23 103.235 0.0242 12 0.0028 8.60+21 258.33 258.325 44.250 8.135 67.150 30.800 107.990 +21 258.325 0.0606 64 0.0150 4.04+19 533.51 533.51 125.710 36.050 103.425 108.780 159.545 +19 533.51 0.1252 243 0.0570 2.20+17 243.33 243.33 34.035 18.210 55.475 48.885 86.725 +17 243.33 0.0571 173 0.0406 1.41+15 185.73 185.73 34.945 8.940 41.435 35.380 65.030 +15 185.73 0.0436 172 0.0404 1.08+13 452.07 452.065 75.140 15.320 122.915 92.380 146.310 +13 452.065 0.1061 612 0.1437 0.74+12 347.76 307.32 40.435 60.055 12.940 78.315 54.830 101.180 +12 307.32 0.0721 673 0.1580 0.46+11 656.18 594.715 61.465 115.560 31.770 128.835 114.190 204.360 +11 594.715 0.1396 1955 0.4589 0.30+9 940.86 831.96 108.900 149.430 41.975 191.640 171.040 277.875 +9 831.96 0.1953 4497 1.0556 0.19+7 843.82 766.4 77.420 130.515 41.415 189.865 188.685 215.920 +7 766.4 0.1799 6410 1.5047 0.12+5 1,198.61 1103.345 95.260 200.095 62.230 277.550 355.120 208.350 +5 1103.345 0.2590 16121 3.7843 0.07+3 253.52 244.64 8.875 47.130 14.215 67.430 74.075 41.790 +3 244.64 0.0574 6867 1.6120 0.04‐3 40.88 39.78 1.095 7.320 2.020 9.355 11.480 9.605 ‐3 39.78 0.0093 0 0 0

Total 6,057.81 5664.355 393.450 1054.460 293.220 1359.900 1306.155 1650.620 Total 5664.355 1.33 37799 8.8730

19‐Jan‐00 16-Aug-02 16-Aug-02 15-Aug-02 23-Sep-02 23-Sep-02DTC Sieve Size Total Stones 16Aug‐23Sep YW01675 YW01650 YW01620 YW01600 YW01580 YW01520

+23 12 12 4 3.00 3 2+21 64 64 13 2 17.00 6 26+19 243 243 60 14 54.00 48 67+17 173 173 27 13 43.00 33 57+15 172 172 34 9 37.00 35 57+13 612 612 103 24 164.00 127 194+12 758 673 85.00 130 33 178.00 120 212 Export Sale Number Valuation Sales+11 2179 1955 224.00 384 108 436.00 372 655+9 5117 4497 620.00 813 226 1046.00 931 1481 ADS#2 ‐ 7 June 1999+7 6410 6410 0.00 1117 356 1590.00 1622 1725 ADS#3 ‐ 14 July 1999 1,960.20+5 16121 16121 0.00 2808 896 4424.00 5330 2663 ADS#4 ‐ Sept / Oct 1999 48.58+3 6867 6867 0.00 1301 356 2044.00 2026 1140 ADS#5 ‐ Nov / Dec 1999‐3 0 0 64 431 119 550 675 565 ADS#6 ‐ 28 Feb 2000

Total 38,728 37799 929 6794 2037 10036 10653 8279 ADS#7 ‐ 8 May 2000ADS#8 ‐ 12 July 2000ADS#9 ‐ 23 Aug 2000ADS#10 ‐ 2 Oct 2000 393.48

Flitch BCM mine record sized sold Cts/BCM ADS#11 ‐ 29 Nov 2000YWO1775 830.76 ADS#12 ‐ 2001YWO1700 2,000 1,178.02 ADS#13 ‐ 2001YWO1675 630 393.45 877.25 1.39 ADS#14 ‐ 2001YWO1650 840 1054.46 1054.57 1.26 ADS#15 ‐ 2001YWO1620 350 293.22 293.32 0.84 ADS#16 ‐ 2002YWO1600 880 1359.9 1368.16 1.55 ADS#17 ‐ 2002YWO1580 850 1306.155 1306.06 1.54 ADS#18 ‐ 2002YWO1520 1340 1650.62 1659.54 1.24 ADS#19 ‐ 2003 5,681.00 6,165.55TOTAL 4,890 0.00 6,057.81 6,558.90 5,681.00 8,567.81SELECTED 4260 0 5664.355 5681.65 1.33

Carats

ADS#1 ‐ May 99


STONES FLITCH

Carats Stones

TABLE 9.11: YWAIN Sorthouse Sizing Record


CaratsCts/BCM SelectedDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 103.24 0.0242 12 0.0028 ‐2.5502 4 0.0048 ‐2.3222 0.0000 3.00 0.0034 ‐2.4674 3 0.0035 ‐2.4523 2 0.0015 ‐2.8261 8.60+21 258.33 0.0606 64 0.0150 ‐1.8232 13 0.0155 ‐1.8103 2 0.0057 ‐2.2430 17.00 0.0193 ‐1.7140 6 0.0071 ‐2.1513 26 0.0194 ‐1.7121 4.04+19 533.51 0.1252 243 0.0570 ‐1.2438 60 0.0714 ‐1.1461 14 0.0400 ‐1.3979 54.00 0.0614 ‐1.2121 48 0.0565 ‐1.2482 67 0.0500 ‐1.3010 2.20+17 243.33 0.0571 173 0.0406 ‐1.3914 27 0.0321 ‐1.4929 13 0.0371 ‐1.4301 43.00 0.0489 ‐1.3110 33 0.0388 ‐1.4109 57 0.0425 ‐1.3712 1.41+15 185.73 0.0436 172 0.0404 ‐1.3939 34 0.0405 ‐1.3928 9 0.0257 ‐1.5898 37.00 0.0420 ‐1.3763 35 0.0412 ‐1.3854 57 0.0425 ‐1.3712 1.08+13 452.07 0.1061 612 0.1437 ‐0.8427 103 0.1226 ‐0.9114 24 0.0686 ‐1.1639 164.00 0.1864 ‐0.7296 127 0.1494 ‐0.8256 194 0.1448 ‐0.8393 0.74+12 347.76 0.0816 673 0.1580 ‐0.8014 130 0.1548 ‐0.8103 33 0.0943 ‐1.0256 178.00 0.2023 ‐0.6941 120 0.1412 ‐0.8502 212 0.1582 ‐0.8008 0.52+11 656.18 0.1540 1,955 0.4589 ‐0.3383 384 0.4571 ‐0.3399 108 0.3086 ‐0.5106 436.00 0.4955 ‐0.3050 372 0.4376 ‐0.3589 655 0.4888 ‐0.3109 0.336+9 940.86 0.2209 4,497 1.0556 0.0235 813 0.9679 ‐0.0142 226 0.6457 ‐0.1900 1046.00 1.1886 0.0750 931 1.0953 0.0395 1481 1.1052 0.0435 0.209+7 843.82 0.1981 6,410 1.5047 0.1774 1117 1.3298 0.1238 356 1.0171 0.0074 1590.00 1.8068 0.2569 1622 1.9082 0.2806 1725 1.2873 0.1097 0.132+5 1,198.61 0.2814 16,121 3.7843 0.5780 2808 3.3429 0.5241 896 2.5600 0.4082 4424.00 5.0273 0.7013 5330 6.2706 0.7973 2663 1.9873 0.2983 0.074+3 253.52 0.0595 6,867 1.6120 0.2074 1301 1.5488 0.1900 356 1.0171 0.0074 2044.00 2.3227 0.3660 2026 2.3835 0.3772 1140 0.8507 ‐0.0702 0.037‐3 40.88 0.0096 2,340 0.5493 ‐0.2602 431 0.5131 ‐0.2898 119 0.3400 ‐0.4685 550 0.6250 ‐0.2041 675 0.7941 ‐0.1001 565 0.4216 ‐0.3751 0.017

Total 6,057.81 1.42 40,139 9.42 7225 8.60 2156 6.2 10586 12.0 11328 13.3 8844 6.6BCM

Table 9.12: Comprison of Mined Flitch

Selected Flitch* YW01650*293.22

YW01620*5,664.36 1306.16 1650.62

YW01600* YW01580* YW01520*

850 1340

1.255 1.545 1.537 1.232

350

0.838

4,260 840 880

1054.46 1359.91.330

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1.0000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

YW1650

YW1620

YW1600

YW1580

YW1520

4260 BCMWeight carats Weight carats mss Stones St/BCM Cts/BCMSpec 50.16 Spec 50.16 15.50 3 0.001 0.011810cts 10.05 10cts 10.05 10.30 1 0.000 0.00249cts 9.02 9cts 9.02 9.30 1 0.000 0.00218cts 24.99 8cts 24.99 8.30 3 0.001 0.00597cts 15.55 7cts 15.55 7.30 2 0.001 0.00376cts 43.19 6cts 43.19 6.30 7 0.002 0.01015cts 62.07 5cts 62.07 5.30 12 0.003 0.01464cts 91.92 4cts 91.92 4.30 21 0.005 0.02163cts 202.53 3cts 202.53 3.30 61 0.014 0.04758‐10gr 351.19 2cts 351.19 2.30 153 0.036 0.08246gr 243.07 1cts 598.05 1.20 498 0.117 0.14045gr 124.45 0.66cts 241.59 0.760 318 0.075 0.05674gr 230.53 +11 907.40 0.336 2703 0.635 0.21303gr 241.59 +9 871.76 0.209 4167 0.978 0.2046+11 907.40 +7 663.27 0.132 5038 1.183 0.1557+9 871.76 +5 1139.08 0.074 15320 3.596 0.2674+7 663.27 +3 341.71 0.037 9256 2.173 0.0802+5 1,139.08 ‐3 57.19 0.017 3274 0.769 0.0134+3 341.71 5680.72 40840 9.587 1.33‐3 57.19

Total 5,680.72

YW Spec Val

TABLE 9.13: Ywain Special Parcel

Ywain: 14.1 tonnes 14.1 Tonnes

Sieve PlateRound

ApertureSquare

Aperture 8.7 BCM* *estimatedDTC mm mm stones carats stones carats stones carats MSS MSS Ac DTC Sieve carats stones MSS Weight carats stones St/BCM Log19 6.350 5.56 1 1.677 1 1.677 1.677 1.677 +23 0 0 Spec17 5.740 4.93 0 0.000 1.677 +21 0 0 10cts15 5.410 4.62 1 0.877 1 0.877 0.877 1.277 +19 1.677 1 1.6770 9cts13 4.521 3.85 0 0.000 1.277 +17 0 0 8cts12 4.089 3.42 3 1.916 3 1.916 0.639 0.894 +15 0.877 1 0.8770 7cts11 3.454 2.86 1 0.124 1 0.124 0.124 0.766 +13 0 0 6cts9 2.845 2.35 8 1.615 1 0.071 9 1.686 0.187 0.419 +12 1.916 3 0.6387 5cts7 2.464 2.00 9 1.184 2 0.147 11 1.331 0.121 0.293 +11 0.124 1 0.1240 4cts6 2.159 1.72 17 1.386 2 0.080 19 1.466 0.077 0.202 +9 1.686 9 0.1873 3cts5 1.829 1.47 27 1.526 7 0.246 34 1.772 0.052 0.137 +7 1.331 11 0.1210 2cts 1.677 1 0.11494 ‐0.9403 1.477 1.15 39 1.435 39 0.862 78 2.297 0.029 0.084 +5 3.238 53 0.0611 1cts2 1.321 1.00 8 0.190 20 0.314 28 0.504 0.018 0.074 +3 2.297 78 0.0294 0.66cts 2.793 4 0.45977 ‐0.3371 1.092 0.82 0 0.000 84 1.012 84 1.012 0.012 0.055 ‐3 1.516 112 0.0135 +11 0.124 1 0.11494 ‐0.940

Total 114 11.930 155 2.732 269 14.662 0.055 0.055 Total 14.66 269 0.0545 +9 1.686 9 1.03448 0.015-1 73 0.546 73 0.546 0.007 0.049 +7 1.331 11 1.26437 0.102

Grand Total 114 11.930 228 3.278 342 15.208 0.044 0.047 +5 3.238 53 6.09195 0.785+3 2.297 78 8.96552 0.953‐3 1.516 112 12.8736 1.110

Ywain: 14.1 tonnes 14.662 269 30.9195

Sieve PlateRound

ApertureSquare

ApertureDTC mm mm st/100t ct/100t st/100t ct/100t st/100t ct/100t

19 6.350 5.56 7 11.89 7 11.8917 5.740 4.9315 5.410 4.62 7 6.22 7 6.2213 4.521 3.8512 4.089 3.42 21 13.59 21 13.5911 3.454 2.86 7 0.88 7 0.889 2.845 2.35 57 11.45 7 0.50 64 11.967 2.464 2.00 64 8.40 14 1.04 78 9.446 2.159 1.72 121 9.83 14 0.57 135 10.405 1.829 1.47 191 10.82 50 1.74 241 12.573 1.477 1.15 277 10.18 277 6.11 553 16.292 1.321 1.00 57 1.35 142 2.23 199 3.571 1.092 0.82 0 0.00 596 7.18 596 7.18

Total 809 84.61 1099 19.376 1908 103.99-1 518 3.872 518 3.87

Grand Total 809 84.61 1617 23.248 2426 107.86

Table 9.14: Ywain Bulk Sample 2006

05-052-010

+1mm Slot -1mm Slot Total Total

05-052-010

+1mm Slot -1mm Slot Total

Volume Ywain 1100 BCM* *Estimated

Size cts Weight carats Stones st/BCM Log Cts/BCM+10cts 27.73 15.50 Spec 17.19 1 0.00091 ‐3.0414 0.016+9cts 8.95 10.30 10cts 10.54 1 0.0009 ‐3.0414 0.010+8cts 8.73 9.30 9cts 8.95 1 0.0009 ‐3.0580 0.008+7cts - 8.30 8cts 8.73 1 0.0010 ‐3.0195 0.008+6cts 13.41 7.30 7cts 0.00 0+5cts 10.49 6.30 6cts 13.41 2 0.0019 ‐2.7132 0.012+4cts 25.69 5.30 5cts 10.49 2 0.0018 ‐2.7447 0.010+3cts 38.96 4.30 4cts 25.69 6 0.0054 ‐2.2651 0.023+10gr 7.78 3.30 3cts 38.96 12 0.0107 ‐1.9692 0.035+8gr 60.89 2.30 2cts 68.66 30 0.0271 ‐1.5664 0.062

+5-6gr 94.00 1.20 1cts 153.94 128 0.1166 ‐0.9332 0.140+4gr 59.94 0.760 0.66cts 64.93 85 0.0777 ‐1.1097 0.059+3gr 64.93 0.336 +11 250.35 746 0.6781 ‐0.1687 0.228+11 250.35 0.209 +9 237.05 1133 1.0300 0.0129 0.216+9 237.05 0.132 +7 205.29 1559 1.4177 0.1516 0.187+7 205.29 0.074 +5 441.14 5933 5.3938 0.7319 0.401+5 441.14 0.037 +3 188.02 5093 4.6300 0.6656 0.171+3 188.02 0.017 ‐3 73.80 4225 3.8408 3.6258 0.067-3 73.80 1817.16 18959 17.2 1.64

Total 1,817.16

TABLE 9.15: NADL 2006 ROM

*No Crush 14.1 Tonnes *No Crush *Adjusted *No Crush8.7 BCM 4000 BCM* 1100 BCM

Weight carats stones St/BCM Log st/BCM Cts/BCM Weight mss carats Stones St/BCM Log st/BCM Cts/BCM Weight carats Stones st/BCM Log st/BCM Cts/BCMSpec Spec 15.50 50.16 3 0.001 ‐3.0920 0.013 15.50 Spec 17.19 1 0.0009091 ‐3.041 0.0156310cts 10cts 10.30 10.05 1 0.000 ‐3.6127 0.0025 10.30 10cts 10.54 1 0.0009 ‐3.041 0.009589cts 9cts 9.30 9.02 1 0.000 ‐3.6153 0.0023 9.30 9cts 8.95 1 0.0009 ‐3.058 0.008148cts 8cts 8.30 24.99 3 0.001 ‐3.1234 0.0062 8.30 8cts 8.73 1 0.0010 ‐3.019 0.007947cts 7cts 7.30 15.55 2 0.001 ‐3.2737 0.0039 7.30 7cts 0.00 0 0.0000 0.000006cts 6cts 6.30 43.19 7 0.002 ‐2.7660 0.0108 6.30 6cts 13.41 2 0.0019 ‐2.713 0.012195cts 5cts 5.30 62.07 12 0.003 ‐2.5335 0.0155 5.30 5cts 10.49 2 0.0018 ‐2.745 0.009544cts 4cts 4.30 91.92 21 0.005 ‐2.2721 0.0230 4.30 4cts 25.69 6 0.0054 ‐2.265 0.023363cts 3cts 3.30 202.53 61 0.015 ‐1.8141 0.0506 3.30 3cts 38.96 12 0.0107 ‐1.969 0.035422cts 1.677 1 0.11 ‐0.940 0.1928 2cts 2.30 351.19 153 0.038 ‐1.4182 0.0878 2.30 2cts 68.66 30 0.0271 ‐1.566 0.062421cts 1cts 1.20 598.05 498 0.125 ‐0.9045 0.1495 1.20 1cts 153.94 128 0.1166 ‐0.933 0.13994

0.66cts 2.793 4 0.46 ‐0.337 0.3210 0.66cts 0.760 241.59 318 0.079 ‐1.0998 0.0604 0.760 0.66cts 64.93 85 0.078 ‐1.110 0.05903+11 0.124 1 0.11 ‐0.940 0.0143 +11 0.336 907.40 2703 0.68 ‐0.1701 0.2269 0.336 +11 250.35 746 0.68 ‐0.169 0.22759+9 1.686 9 1.03 0.015 0.1938 +9 0.209 871.76 4167 1.04 0.0177 0.2179 0.209 +9 237.05 1133 1.03 0.013 0.21550+7 1.331 11 1.26 0.102 0.1530 +7 0.132 663.27 5038 1.26 0.1002 0.1658 0.132 +7 205.29 1559 1.418 0.152 0.18663+5 3.238 53 6.09 0.785 0.3722 +5 0.074 1139.08 15320 3.830 0.5832 0.2848 0.074 +5 441.14 5933 5.394 0.732 0.40103+3 2.297 78 8.97 0.953 0.2640 +3 0.037 341.71 9256 2.314 0.3644 0.0854 0.037 +3 188.02 5093 4.630 0.666 0.17093‐3 1.516 112 12.87 1.110 0.1743 ‐3 0.017 57.19 3274 0.818 ‐0.0870 0.0143 0.017 ‐3 73.80 4225 3.841 0.584 0.06709

Total 14.662 269 30.9195402 1.685 Total 5680.72 40840 10.210 1.42 Total 1799.97 18959 17.2 1.65

*No Crush120000 BCM

Weight mss cts st st/BCM Log st/BCM ct/BCM Weight mss st/BCM Log st/BCM ct/BCMSpec 15.50 388.12 25 0.0002 ‐3.6805 0.003 Spec 15.50 0.0002 ‐3.6805 0.00310cts 10.30 174.96 17 0.0001 ‐3.8491 0.0015 10cts 10.30 0.0001 ‐3.8491 0.00159cts 9.30 241.78 26 0.0002 ‐3.6642 0.0020 9cts 9.30 0.0002 ‐3.6642 0.00208cts 8.30 247.73 30 0.0002 ‐3.6043 0.0021 8cts 8.30 0.0002 ‐3.6043 0.00217cts 7.30 501.22 69 0.0006 ‐3.2425 0.0042 7cts 7.30 0.001 ‐3.2425 0.00426cts 6.30 703.56 112 0.0009 ‐3.0312 0.0059 6cts 6.30 0.001 ‐3.0312 0.00595cts 5.30 1006.91 190 0.0016 ‐2.8005 0.0084 5cts 5.30 0.002 ‐2.8005 0.00844cts 4.30 1820.97 423 0.0035 ‐2.4523 0.0152 4cts 4.30 0.004 ‐2.4523 0.01523cts 3.30 3434.76 1041 0.0087 ‐2.0618 0.0286 3cts 3.30 0.009 ‐2.0618 0.02862cts 2.30 7002.80 3045 0.0254 ‐1.5956 0.0584 2cts 2.30 0.025 ‐1.5956 0.05841cts 1.20 15350.97 12792 0.107 ‐0.9722 0.1279 1cts 1.20 0.107 ‐0.9722 0.1279

0.66cts 0.76 7815.77 10284 0.086 ‐1.0670 0.0651 0.66cts 0.76 0.086 ‐1.0670 0.0651+11 0.330 26910.46 81654 0.680 ‐0.1672 0.2243 +11 0.330 0.680 ‐0.1672 0.2243+9 0.192 23192.75 120775 1.006 0.0028 0.1933 +9 0.192 1.006 0.0028 0.1933+7 0.121 14937.17 123669 1.03 0.0131 0.1245 +7 0.121 1.260 0.1002 0.1521+5 0.069 17642.90 254694 2.12 0.3268 0.1470 +5 0.069 5.394 0.7319 0.3736+3 0.036 3671.64 100827 0.84 ‐0.0756 0.0306 +3 0.036 8.069 0.9068 0.2938‐3 0.017 454.24 26718 0.22 ‐0.6524 0.0038 ‐3 0.017 11.586 1.0639 0.1970

Total 0.170 125498.70 736,391 6.14 1.05 Total 28.23 1.76cts/BCM 0.221

Cum Cum % Cum Cum % Cum Cum %ct/BCM ct/BCM ct/BCM ct/BCM ct/BCM ct/BCM ct/BCM ct/BCM ct/BCM0.0032 0.0032 0.18% 0.0032 0.0032 0.31% 0.0118 0.0118 0.88%0.0015 0.0047 0.27% 0.0015 0.0047 0.45% 0.0024 0.0141 1.06%0.0020 0.0067 0.38% 0.0020 0.0067 0.64% 0.0021 0.0163 1.22%0.0021 0.0088 0.50% 0.0021 0.0088 0.84% 0.0059 0.0221 1.66%0.0042 0.0129 0.74% 0.0042 0.0129 1.24% 0.0037 0.0258 1.93%0.0059 0.0188 1.07% 0.0059 0.0188 1.80% 0.0101 0.0359 2.69%0.0084 0.0272 1.55% 0.0084 0.0272 2.60% 0.0146 0.0505 3.79%0.0152 0.0424 2.41% 0.0152 0.0424 4.05% 0.0216 0.0721 5.40%0.0286 0.0710 4.04% 0.0286 0.0710 6.79% 0.0475 0.1196 8.97%0.0584 0.1294 7.36% 0.0584 0.1294 12.37% 0.0824 0.2020 15.15%0.1279 0.2573 14.65% 0.1279 0.2573 24.60% 0.1404 0.3424 25.68%0.0651 0.3224 18.36% 0.0651 0.3224 30.83% 0.0567 0.3991 29.93%0.2243 0.5467 31.12% 0.2243 0.5467 52.27% 0.2130 0.6121 45.90%0.1933 0.7399 42.13% 0.1933 0.7399 70.75% 0.2046 0.8168 61.25%0.1521 0.8921 50.79% 0.1245 0.8644 82.65% 0.1557 0.9725 72.93%0.3736 1.2657 72.06% 0.1470 1.0114 96.71% 0.2674 1.2399 92.98%0.2938 1.5596 88.79% 0.0306 1.0420 99.64% 0.0802 1.3201 98.99%0.1970 1.7565 100.00% 0.0038 1.0458 100.00% 0.0134 1.3335 100.00%1.76 1.05 1.33

NADL 2006 ROM*NADL Bulk Sample 2006*

Resource ModelMerlin Average Production ‐ micaceous pipes

NADL Resource Model Production Model RIO Historic Mine

TABLE 9.16: Grade Model

RIO Ywain Special Parcel*

‐4.5000

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1.0000

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

RIO Special Parcel

Merlin Average

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1.0000

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

RIO Special Parcel

NADL ROM 2006

‐5.0000

‐4.0000

‐3.0000

‐2.0000

‐1.0000

0.0000

1.0000

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66cts

+11 +9 +7 +5 +3 ‐3

Merlin Average

NADL ROM 2006

‐3.5

‐3

‐2.5

‐2

‐1.5

‐1

‐0.5

0

0.5

1

1.5

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66cts

+11 +9 +7 +5 +3 ‐3

2006 Bulk Sample

2006 ROM

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00DTC Sieve Carats Selected* XCO1480 XC01450 XC01425 XCO1400 XCO1375 XCO1350 XCO1330 XC01300 XCO1280 XCO1250 XCO1230 XCO1200 XCO1180 XCO1150 XCO1130 XCO1100 XC01080 XC01050* XC01000*

+23 109.20 52.065 0 57.13 25.04 27.025+21 398.41 280.645 35.43 82.33 117.53 163.115+19 820.47 462.085 32.865 325.52 185.74 276.345+17 449.52 345.93 12.82 90.77 173.72 172.21+15 557.02 377.205 28.615 151.2 162.295 214.91+13 1,679.34 1145.08 47.275 486.98 503.305 641.775+12 40,514.77 759.26 1713.5 3406.955 3391.515 2957.545 3065.02 2916.967 2378.115 3045.185 2582.17 3232.985 1893.59 1528.935 1915.505 2043.96 1722.261 1674.97 286.335 340.435 418.825+11 16,896.52 1417.81 677.765 1218.9 1342.565 1011.18 1231.755 939.73 803.935 1147.465 899.57 1087.16 684.955 614.93 675.395 967.565 750.05 760.985 664.8 613.75 804.06+9 21,869.77 1775.07 818.865 1552.22 1588.61 1198.145 1489.185 1275.584 935.9 1385.265 1497.755 1432.88 960.96 841.115 783.935 1272.16 881.205 1007.635 1173.285 812.595 962.475+7 13,028.24 1161.915 466.995 964.665 825.835 767.45 878.975 631.64 618.63 674.495 860.913 882.495 594.565 521.23 497.31 791.165 633.99 569.08 686.895 505.73 656.185+5 15,264.38 1461.65 375.775 776.465 592.785 598.24 679.725 681.275 497.68 553.215 1135.18 1043.565 613.07 849.76 721.73 1342.83 1073.68 1210.285 1057.47 693.185 768.465+3 2,468.21 257.975 13.09 29.84 114.87 25.245 23.369 73.125 15.455 17.505 173.21 127.17 71.68 233.89 156.44 342.61 220.27 319.7 252.77 110.5 147.475‐3 182.98 18.62 0 0.355 5.19 1.69 0.72 6.11 0.18 0.64 0 2.105 1.3 1.205 23.43 34.76 8.635 55.045 22.995 9.145 9.475

Total 114,081.82 9515.31 4065.99 7949.4 7861.37 6559.495 7368.749 6524.431 5249.895 6823.77 7148.798 7808.36 4820.12 4591.065 4773.745 6795.05 5290.091 5597.7 5338.48 4252.97 5262.34

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00DTC Sieve Stones Selected* XCO1480 XC01450 XC01425 XCO1400 XCO1375 XCO1350 XCO1330 XC01300 XCO1280 XCO1250 XCO1230 XCO1200 XCO1180 XCO1150 XCO1130 XCO1100 XC01080* XC01050* XC01000*

+23 15 8 0 7 4 4+21 100 68 8 24 32 36+19 409 224 13 172 97 127+17 320 251 9 60 126 125+15 476 326 23 127 148 178+13 2,140 1445 59 636 622 823+12 42,551 1474 1766 3307 3429 3156 2967 2928 2500 3259 2544 3218 2017 1581 1983 2508 1819 1944 151 673 801+11 50,544 4132 2070 3603 3826 3047 3723 2843 2459 3591 3084 2683 2046 1892 2081 3136 2184 2313 1831 1819 2313+9 114,092 9155 4007 7595 7864 5631 8149 7558 5798 6566 7316 6644 4962 4599 4089 6982 4664 5446 7067 4259 4896+7 19,090 9758 4 307 325 7 0 407 0 470 0 0 111 1 0 1032 0 0 6668 4259 5499+5 40,772 20967 0 189 690 9 0 2108 0 764 0 0 3 0 0 3523 0 0 12519 9899 11068+3 18,182 6962 0 37 328 10 0 1321 0 205 0 0 1 1 0 2013 0 0 7304 2982 3980‐3 10,764 1095 0 21 305 99 42 359 11 38 0 124 76 71 1378 2045 508 3238 1353 538 557

Total 288,579 55865 7847 15038 16462 11860 14839 17165 10757 14855 12944 12545 9140 8074 8153 19194 8667 9703 36566 24920 29850

Flitch BCM received sized sold Cts/BCM Export Sale Number Valuation Sales DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSXCO1700 874.10 ADS#1 ‐ May 99 347.28 +23 52.065 0.0024 8 0.0004 6.51XCO1600 119.79 ADS#2 ‐ 7 June 1999 0.00 +21 280.645 0.0128 68 0.0031 4.13XC01530 785 227.49 227.49 0.29 ADS#3 ‐ 14 July 1999 5,443.43 +19 462.085 0.0211 224 0.0102 2.06XC01500 9,050 5,443.43 5,443.43 0.60 ADS#4 ‐ Sept / Oct 1999 0.00 +17 345.93 0.0158 251 0.0115 1.38XCO1480 8,390 4,066.43 4,065.99 4,066.43 0.48 ADS#5 ‐ Nov / Dec 1999 0.00 +15 377.205 0.0173 326 0.0149 1.16XCO1450 12,928 7,959.35 7,949.40 7,959.37 0.62 ADS#6 ‐ 28 Feb 2000 26,681.00 26,682.38 +13 1145.08 0.0524 1445 0.0661 0.79XCO1425 9,987 7,860.82 7,861.37 7,860.82 0.79 ADS#7 ‐ 8 May 2000 30,059.00 30,061.07 +12 759.26 0.0347 1474 0.0674 0.52XCO1400 10,635 6,668.89 6,559.50 6,668.89 0.63 ADS#8 ‐ 12 July 2000 21,368.00 21,322.09 +11 1417.81 0.0648 4132 0.1890 0.34XCO1375 10,247 7,450.75 7,368.75 7,450.75 0.73 ADS#9 ‐ 23 Aug 2000 21,154.00 21,154.70 +9 1775.07 0.0812 9155 0.4187 0.19XCO1350 10,399 6,552.43 6,524.43 6,552.43 0.63 ADS#10 ‐ 2 Oct 2000 271.00 384.56 +7 1161.915 0.0531 9758 0.4463 0.12XCO1330 7,620 5,452.19 5,249.90 5,452.19 0.72 ADS#11 ‐ 29 Nov 2000 6,371.00 6,256.11 +5 1461.65 0.0669 20967 0.9590 0.07XC01300 10,502 6,980.80 6,823.77 6,980.80 0.66 ADS#12 ‐ 2001 10,067.00 10,068.46 +3 257.975 0.0118 6962 0.3184 0.04XCO1280 8,801 7,170.10 7,148.80 7,170.10 0.81 ADS#13 ‐ 2001 225.00 224.78 ‐3 18.62 0.0009 1095.29412 0 0XCO1250 9,887 7,763.58 7,808.36 7,763.58 0.79 ADS#14 ‐ 2001 0.00 Total 9515.31 0.44 55865.2941XCO1230 6,089 4,793.75 4,820.12 4,793.75 0.79 ADS#15 ‐ 2001 0.00XCO1200 8,392 6,182.95 4,591.07 6,182.95 0.74 ADS#16 ‐ 2002 0.00XCO1180 6,455 4,777.47 4,773.75 4,774.47 0.74 ADS#17 ‐ 2002 0.00XCO1150 8,075 6,795.19 6,795.05 6,795.19 0.84 ADS#18 ‐ 2002 0.00XCO1130 5,873 5,290.10 5,290.09 5,290.10 0.90 ADS#19 ‐ 2003 874.10XCO1100 7,473 5,597.72 5,597.70 5,597.72 0.75 116,196.00 122,818.96XCO1080 6888.96 5247.91 5338.48 5247.91 0.76XCO1050 6738 4288.31 4252.97 4288.31 0.64XCO1000 8237 5258.39 5262.34 5258.39 0.64TOTAL 173,452 121,828.05 114,081.82 122,818.96 0.71SELECTED 21863.96 14794.61 14853.79 14794.61 0.68

FLITCH

Table 9.17: EXCALIBUR Sorthouse Sizing Record


Carats Carats Stones


STONES

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 52.07 0.0035 8 0.0005 ‐3.2723 0 0.0000 7 0.0010 ‐2.9931 4 0.0006 ‐3.2265 4 0.0005 ‐3.3137 6.51+21 280.65 0.0187 68 0.0045 ‐2.3429 8 0.0014 ‐2.8658 24 0.0035 ‐2.4579 32 0.0047 ‐2.3234 36 0.0044 ‐2.3595 4.13+19 462.09 0.0309 224 0.0150 ‐1.8251 13 0.0022 ‐2.6549 172 0.0250 ‐1.6026 97 0.0144 ‐1.8418 127 0.0154 ‐1.8120 2.06+17 345.93 0.0231 251 0.0168 ‐1.7757 9 0.0015 ‐2.8146 60 0.0087 ‐2.0600 126 0.0187 ‐1.7282 125 0.0152 ‐1.8189 1.38+15 377.21 0.0252 326 0.0218 ‐1.6621 23 0.0039 ‐2.4071 127 0.0184 ‐1.7343 148 0.0220 ‐1.6583 178 0.0216 ‐1.6653 1.16+13 1145.08 0.0765 1,445 0.0965 ‐1.0155 59 0.0100 ‐1.9980 636 0.0923 ‐1.0347 622 0.0923 ‐1.0347 823 0.0999 ‐1.0004 0.79+12 759.26 0.0507 1,474 0.0984 ‐1.0069 3259 0.5549 ‐0.2558 151 0.0219 ‐1.6592 673 0.0999 ‐1.0005 801 0.0972 ‐1.0121 0.52+11 1417.81 0.0947 4,132 0.2759 ‐0.5592 3591 0.6114 ‐0.2136 1831 0.2658 ‐0.5755 1819 0.2700 ‐0.5687 2313 0.2808 ‐0.5516 0.343+9 1775.07 0.1185 9,155 0.6114 ‐0.2137 6566 1.1180 0.0484 7067 1.0258 0.0111 4259 0.6321 ‐0.1992 4896 0.5944 ‐0.2259 0.194+7 1161.92 0.0776 9,758 0.6516 ‐0.1860 470 0.0800 ‐1.0968 6668 0.9679 ‐0.0142 4259 0.6321 ‐0.1992 5499 0.6676 ‐0.1755 0.119+5 1461.65 0.0976 20,967 1.4001 0.1462 764 0.1301 ‐0.8858 12519 1.8173 0.2594 9899 1.4691 0.1671 11068 1.3437 0.1283 0.070+3 257.98 0.0172 6,962 0.4649 ‐0.3326 205 0.0349 ‐1.4571 7304 1.0602 0.0254 2982 0.4426 ‐0.3540 3980 0.4832 ‐0.3159 0.037‐3 18.62 0.0012 1,095 0.0731 ‐1.1360 38 0.0065 ‐2.1891 1353 0.1964 ‐0.7069 538 0.0798 ‐1.0977 557 0.0676 ‐1.1699 0.017

Total 9515.31 0.64 55,865 3.73 15005 2.6 37919 5.5 25458 3.8 30407 3.7 0.17BCM

5262.34XC01000*

Table 9.18: Comparison of Mined Flitches

Selected Flitch* XC01300 XC01080 XC01050*9,515 6823.77 5338.48 4252.97

8237

0.635 1.162 0.775 0.631 0.639

14,975 5873 6888.96 6,738

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

EXO1300

EXO1080

EXO1050

EXO1000

Month Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Total 176600 BCM* *Estimated

Weight cts cts cts cts cts cts cts cts cts Weight mss carats Stones St/BCM LogSpecial 46.35 77.03 64.54 43.49 28.42 11.01 270.84 Spec 15.50 270.84 17 0.0001 ‐4.00+10cts 20.65 31.78 40.42 20.83 20.02 133.70 10cts 10.30 133.70 13 0.0001 ‐4.13+9cts 64.60 45.31 56.59 9.51 9.33 28.01 9.65 223.00 9cts 9.30 223.00 24 0.0001 ‐3.87+8cts 40.66 57.78 50.09 16.50 8.25 24.96 198.24 8cts 8.30 198.24 24 0.0001 ‐3.87+7cts 130.98 115.47 94.24 81.33 21.33 443.35 7cts 7.30 443.35 61 0.0003 ‐3.46+6cts 161.83 149.99 125.24 135.50 18.90 37.39 628.85 6cts 6.30 628.85 100 0.0006 ‐3.25+5cts 248.34 178.45 194.33 174.43 15.96 91.83 903.34 5cts 5.30 903.34 170 0.0010 ‐3.02+4cts 452.05 348.80 429.95 197.36 78.03 125.81 4.12 1636.12 4cts 4.30 1636.12 380 0.0022 ‐2.67+3cts 964.85 745.95 723.31 389.02 25.30 134.46 139.44 3.30 3125.63 3cts 3.30 3125.63 947 0.0054 ‐2.278gr 1814.62 1620.68 1378.79 914.65 17.10 226.61 432.41 1.88 6406.74 2cts 2.30 6406.74 2786 0.0158 ‐1.806gr 1217.56 1292.74 925.59 689.94 5.04 198.01 395.81 4.29 4728.98 1cts 1.30 14287.36 10990 0.0622 ‐1.215gr 802.02 916.32 573.50 465.51 11.95 135.60 272.18 2.51 3179.59 0.66cts 0.77 7361.76 9561 0.0541 ‐1.274gr 1532.55 1862.69 1145.92 1006.81 9.95 258.23 558.60 4.03 6378.78 +11 0.344 25291.47 73522 0.4163 ‐0.383gr 1833.21 2027.17 1347.07 1143.23 14.19 332.14 659.29 5.46 7361.76 +9 0.194 21796.97 112419 0.6366 ‐0.20+11 6323.92 7070.08 4339.27 4122.37 65.23 1157.36 2175.48 37.76 25291.47 +7 0.119 13918.99 116895 0.6619 ‐0.18+9 5200.76 6170.93 3779.05 3692.59 42.28 1156.92 1718.50 35.94 21796.97 +5 0.070 15985.56 229309 1.2985 0.11+7 3147.52 3693.38 2444.91 2584.75 25.97 789.93 1201.85 30.68 13918.99 +3 0.037 3206.52 86535 0.4900 ‐0.31+5 2558.95 3339.78 2961.59 3978.02 35.02 1320.96 1722.47 68.77 15985.56 ‐3 0.017 376.09 22117 0.1252 ‐0.90

+3 113.57 294.56 615.07 1305.95 8.29 428.04 417.42 23.62 3206.52 116194.52 665869 3.77

‐3 6.12 20.17 78.11 182.46 0.88 54.79 31.42 2.14 376.09 Cts/BCM 0.66

Total 26681.11 30059.06 21367.58 21154.25 270.53 6370.62 10066.87 224.50 116194.52

Excalibur Production

Table 9.19: Excalibur Production 1999/2003

*No Crush *No Crush *No Crush

176600 BCM* 188000 BCMWeight mss carats Stones St/BCM Log st/BCM ct/BCM Weight mss cts st st/BCM Log st/BCM ct/BCM Weight mss st/BCM Log st/BCM ct/BCMSpec 15.50 270.84 17 0.00010 ‐4.00 0.002 Spec 15.50 388.12 25 0.00013 ‐3.88 0.0021 Spec 15.50 0.00013 ‐3.88 0.0020610cts 10.30 133.70 13 0.00007 ‐4.13 0.0008 10cts 10.30 174.96 17 0.00009 ‐4.04 0.0009 10cts 10.30 0.00009 ‐4.04 0.000939cts 9.30 223.00 24 0.00014 ‐3.87 0.0013 9cts 9.30 241.78 26 0.00014 ‐3.86 0.0013 9cts 9.30 0.00014 ‐3.86 0.001298cts 8.30 198.24 24 0.00014 ‐3.87 0.0011 8cts 8.30 247.73 30 0.0002 ‐3.80 0.0013 8cts 8.30 0.00016 ‐3.80 0.001327cts 7.30 443.35 61 0.00034 ‐3.46 0.0025 7cts 7.30 501.22 69 0.0004 ‐3.44 0.0027 7cts 7.30 0.00037 ‐3.44 0.002676cts 6.30 628.85 100 0.0006 ‐3.25 0.0036 6cts 6.30 703.56 112 0.0006 ‐3.23 0.004 6cts 6.30 0.00059 ‐3.23 0.003745cts 5.30 903.34 170 0.0010 ‐3.02 0.0051 5cts 5.30 1006.91 190 0.0010 ‐3.00 0.005 5cts 5.30 0.00101 ‐3.00 0.005364cts 4.30 1636.12 380 0.0022 ‐2.67 0.0093 4cts 4.30 1820.97 423 0.0023 ‐2.65 0.010 4cts 4.30 0.00225 ‐2.65 0.009693cts 3.30 3125.63 947 0.0054 ‐2.27 0.0177 3cts 3.30 3434.76 1,041 0.0055 ‐2.26 0.018 3cts 3.30 0.0055 ‐2.26 0.018272cts 2.30 6406.74 2786 0.0158 ‐1.80 0.0363 2cts 2.30 7002.80 3,045 0.0162 ‐1.79 0.0372 2cts 2.30 0.0162 ‐1.79 0.037251cts 1.30 14287.36 10990 0.0622 ‐1.21 0.0809 1cts 1.20 15350.97 12,792 0.0680 ‐1.17 0.082 1cts 1.20 0.0680 ‐1.17 0.08165

0.66cts 0.77 7361.76 9561 0.054 ‐1.27 0.0417 0.66cts 0.76 7815.77 10,284 0.055 ‐1.26 0.042 0.66cts 0.76 0.055 ‐1.26 0.04157+11 0.343 25291.47 73708 0.42 ‐0.38 0.1432 +11 0.330 26910.46 81,654 0.43 ‐0.36 0.143 +11 0.330 0.43 ‐0.36 0.14314+9 0.194 21796.97 112419 0.64 ‐0.20 0.1234 +9 0.192 23192.75 120,775 0.64 ‐0.19 0.123 +9 0.192 0.64 ‐0.19 0.12337+7 0.119 13918.99 116895 0.66 ‐0.18 0.0788 +7 0.121 14937.17 123,669 0.66 ‐0.18 0.079 +7 0.121 0.66 ‐0.18 0.07995+5 0.070 15985.56 229309 1.30 0.11 0.0905 +5 0.069 17642.90 254,694 1.35 0.13 0.094 +5 0.069 1.50 0.18 0.10391+3 0.037 3206.52 86535 0.49 ‐0.31 0.0182 +3 0.036 3671.64 100,827 0.536 ‐0.27 0.020 +3 0.036 2.00 0.30 0.07283‐3 0.017 376.09 22117 0.13 ‐0.90 0.0021 ‐3 0.017 454.24 26,718 0.142 ‐0.85 0.002 ‐3 0.017 1.60 0.20 0.02720

116194.52 666056 3.77 0.66 125498.7 736,391 3.92 0.67 6.99 0.76Cts/BCM 0.66 cts/BCM 0.668

Cum Cum % Cum Cum % Weight Cum Cum %Weight cts/BCM ct/BCM ct/BCM Weight ct/BCM ct/BCM ct/BCM Spec ct/BCM ct/BCM ct/BCMSpec 0.0021 0.002 0.27% Spec 0.0021 0.0021 0.31% 10cts 0.0015 0.0015 0.23%10cts 0.0009 0.0030 0.40% 10cts 0.0009 0.0030 0.45% 9cts 0.0008 0.0023 0.35%9cts 0.0013 0.0043 0.57% 9cts 0.0013 0.0043 0.64% 8cts 0.0013 0.0036 0.54%8cts 0.0013 0.0056 0.74% 8cts 0.0013 0.0056 0.84% 7cts 0.0011 0.0047 0.71%7cts 0.0027 0.0083 1.09% 7cts 0.0027 0.0083 1.24% 6cts 0.0025 0.0072 1.09%6cts 0.0037 0.0120 1.59% 6cts 0.0037 0.0120 1.80% 5cts 0.0036 0.0107 1.63%5cts 0.0054 0.0174 2.30% 5cts 0.0054 0.0174 2.60% 4cts 0.0051 0.0159 2.41%4cts 0.0097 0.0270 3.58% 4cts 0.0097 0.0270 4.05% 3cts 0.0093 0.0251 3.82%3cts 0.0183 0.0453 5.99% 3cts 0.0183 0.0453 6.79% 2cts 0.0177 0.0428 6.51%2cts 0.0372 0.0826 10.92% 2cts 0.0372 0.0826 12.37% 1cts 0.0363 0.0791 12.02%1cts 0.0817 0.1642 21.72% 1cts 0.0817 0.1642 24.60% 0.66cts 0.0809 0.1600 24.32%

0.66cts 0.0416 0.2058 27.21% 0.66cts 0.0416 0.2058 30.83% +11 0.0417 0.2017 30.65%+11 0.1431 0.3489 46.14% +11 0.1431 0.3489 52.27% +9 0.1432 0.3449 52.42%+9 0.1234 0.4723 62.46% +9 0.1234 0.4723 70.75% +7 0.1234 0.4683 71.18%+7 0.0799 0.5523 73.03% +7 0.0795 0.5518 82.65% +5 0.0788 0.5471 83.16%+5 0.1039 0.6562 86.77% +5 0.0938 0.6456 96.71% +3 0.0905 0.6377 96.92%+3 0.0728 0.7290 96.40% +3 0.0195 0.6651 99.64% -3 0.0182 0.6558 99.68%-3 0.0272 0.7562 100.00% -3 0.0024 0.6675 100.00% 0.0021 0.6580 100.00%

0.76 0.67 0.66


Excalibur Production* Resource Model*

Table 9.20: Excalibur Grade Model

Merlin Average Production ‐ micaceous pipes

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

0.50

1.00

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66

cts

+11 +9 +7 +5 +3 ‐3

RIO Production

Merlin Average

Model

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00 6‐Jul‐01 7‐Mar‐02 13‐Mar‐02DTC Sieve Si Total Carats 2Feb‐13Mar PLO1996 PLO1740 PLO1710 PLO1680 PLO1650 PL01630 PL01600 PL01575 PL01550 PL01510 PL01480 PL01450 PL01430 PL01400 PL01375 PL01350 PL01330 PL01300 PL01250 PL01200 PL01150 PL01140

+23 981.27 886 40.705 36.775 30.435 41.76 52.205 103.535 83.075 35.94 40.305 132.885 123.770 5.760 23.685 95.405 86.89 48.14 0+21 1,897.26 1,653 109.2 109.09 118.85 109.175 144.070 137.025 83.23 90.175 74.645 70.025 119.755 105.940 102.180 219.915 208.63 70.745 24.61+19 3,295.29 2,903 138.775 174.125 186.175 243.885 373.500 210.065 162.965 150.885 119.69 187.03 203.590 205.425 103.690 312.475 270.83 172.72 79.47+17 2,269.37 2,022 118.53 143.285 173.485 108.445 206.175 207.9 120.785 94.115 123.095 73.14 126.590 92.755 88.455 148.05 218.07 126.92 99.58+15 1,684.02 1,482 91.27 88.875 129.295 106.535 168.090 105 96.26 66.67 66.42 143.57 90.130 77.870 59.845 144.415 102.64 89.47 57.665+13 4,984.80 4,547 233.46 310.575 354.08 301.685 501.140 354.37 340.93 269.515 252.535 202.945 250.615 278.625 206.370 368.63 428.30 262.245 68.78+12 10,603.53 3,534 250.15 769.74 2321.325 1711.335 1590.315 221.665 231.62 253.425 214.36 423.225 296.24 246.96 242.01 219.56 155.645 175.090 198.825 156.540 259.015 285.59 212.955 167.935+11 8,987.78 6,123 72.36 246.64 767.975 610.82 567.795 322.635 458.115 475.495 422.225 715.810 431.68 413.105 348.245 296.81 315.315 371.585 345.260 267.535 491.255 613.46 326.175 107.49+9 10,693.58 7,297 75.54 304.075 937.885 675.81 595.615 399.435 578.195 525.575 540.515 849.660 573.095 570.425 362.265 340.84 372.755 370.260 407.070 329.775 599.945 666.56 410.565 207.725+7 7,042.98 4,897 51.605 159.03 523.17 406.5 351.37 253.125 365.4 421.11 294.185 544.870 354.63 284.23 255.03 249.6 306.945 323.880 317.030 233.015 412.165 419.68 273.925 242.48+5 8,977.58 6,752 53.03 149.995 507.65 362.45 236.78 425.71 532.615 569.775 484.29 758.790 439.24 357.525 431.805 378.875 401.46 419.870 399.340 266.470 733.77 591.82 294.27 182.055+3 1,658.72 1,179 2.885 7.625 23.975 138.345 7.069 80.335 123.635 102.715 86.2 133.700 66.485 52.645 68.805 68.725 103.525 70.410 74.325 50.575 87.455 48.35 49.03 211.915‐3 179.94 133 0.025 0 0.2 0.325 0.035 9.44 12.285 12.245 10.41 11.455 3.805 3.405 5.425 12.2 16.61 9.025 8.485 6.355 7.97 4.02 7.87 38.35

Total 63,256.11 43,408 505.595 1637.105 5082.18 3905.585 3348.979 2444.285 3164.59 3352.66 2963.67 4882.69 3283.07 2815.54 2420.885 2243.3 2481.85 2654.57 2516.71 1894.49 3880.465 3944.81 2345.03 1488.055

24‐Nov‐99 1‐Dec‐99 22‐Oct‐99 6‐Jan‐00 19‐Jan‐00 2‐Feb‐00 9‐Feb‐00 16‐Feb‐00 23‐Feb‐00 15‐Mar‐00 29‐Mar‐00 5‐Apr‐00 3‐May‐00 23‐May‐00 31‐May‐00 14‐Jun‐00 14‐Sep‐00 1‐Nov‐00 6‐Dec‐00 6‐Jul‐01 7‐Mar‐02 13‐Mar‐02DTC Sieve Si Total Stones 2Feb‐13Mar PLO1996 PLO1740 PLO1710 PLO1680 PLO1650 PL01630 PL01600 PL01575 PL01550 PL01510 PL01480 PL01450 PL01430 PL01400 PL01375 PL01350 PL01330 PL01300 PL01250 PL01200 PL01150 PL01140

+23 90 78 5 5 3 2 5 10 8 3 5 9 9 1 3 12 5 5 ‐ +21 461 409 24 24 31 23 37 32 26 23 16 18 29 24 28 49 55 19 3 +19 1,519 1,360 59 82 75 116 170 91 79 76 56 92 88 100 53 142 138 85 17 +17 1,600 1,455 86 102 121 77 152 150 86 65 83 51 84 68 71 98 169 90 47 +15 1,569 1,399 87 87 118 99 155 99 83 62 58 152 80 76 58 128 100 85 42 +13 6,579 6,032 315 420 469 408 653 463 436 348 338 290 326 368 272 487 570 356 60 +12 14,651 7,214 122 738 2381 1840 1628 452 468 509 427 845 611 488 528 505 322 363 403 306 510 562 425 218 +11 26,898 18,790 200 757 2187 1817 1513 1051 1411 1547 1291 2188 1296 1267 1081 904 978 1148 1044 804 1418 1776 1,004 216 +9 53,773 38,009 363 1505 4375 3281 2765 2061 3037 2850 2849 4381 3027 3153 1999 1804 1883 1864 2032 1637 2851 3338 2,094 624 +7 44,865 40,037 380 0 9 0 0 2036 2961 3448 2396 4371 2964 2481 2146 2080 2494 2648 2449 1932 3229 3325 2,306 1,210 +5 104,064 96,450 276 0 3 0 0 6161 7047 7981 7167 10475 6351 5125 6386 5670 5577 6315 5507 3336 5913 8853 4,499 1,422 +3 37,289 31,988 50 1 0 0 0 2275 3078 3020 2477 3357 1769 1401 1974 2004 2687 2055 1930 1084 2267 1633 1,244 2,983 ‐3 9,392 7,825 2 0 0 0 0 555 723 720 612 674 224 200 319 718 977 531 499 374 469 236 463 1,096

Total 302,750 251,046 1393 3001 8955 6938 5906 15167 19445 20892 17944 27463 17087 14833 15010 14241 15530 15540 14501 9958 17573 20760 12675 7938

Flitch BCM Mine Rec sized sold Cts/BCM St/BCM Export Sale Number Valuation SalesPLO1996 1,480 505.52 505.60 505.52 0.34 0.94 ADS#1 ‐ May 99 DTC Sieve 2Feb‐13Mar Cts/BCM 2Feb‐13Mar St/BCM MSSPLO1750 8,484 3,902.41 3,902.41 0.46 ADS#2 ‐ 7 June 1999 3,902.41 +23 885.87 0.0060 78 0.0006 11.36PLO1740 3,287 1,637.04 1,637.11 1,637.04 0.50 0.91 ADS#3 ‐ 14 July 1999 +21 1652.74 0.0113 409 0.0034 4.04PLO1710 13,440 4,921.78 5,082.18 4,921.78 0.37 0.67 ADS#4 ‐ Sept / Oct 1999 2,242.13 0.00 +19 2903.35 0.0198 1,360 0.0112 2.13PLO1700 378.10 0.00 0.000 ADS#5 ‐ Nov / Dec 1999 8,416.51 10,474.49 +17 2021.74 0.0138 1,455 0.0120 1.39PLO1680 12,576 3,788.21 3,905.59 3,788.21 0.30 0.55 ADS#6 ‐ 28 Feb 2000 3,428.95 3,429.99 +15 1481.94 0.0101 1,399 0.0115 1.06PLO1650 11,152 3,323.23 3,348.98 3,323.23 0.30 0.53 ADS#7 ‐ 8 May 2000 0.00 +13 4547.39 0.0310 6,032 0.0496 0.75PLO1630 5,445 2,444.36 2,444.29 2,444.36 0.45 2.79 ADS#8 ‐ 12 July 2000 270.91 271.30 +12 3533.71 0.0241 7,214 0.0593 0.49PLO1600 9,304 3,167.93 3,164.59 3,167.93 0.34 2.09 ADS#9 ‐ 23 Aug 2000 0.00 +11 6123.45 0.0418 18,790 0.1544 0.326PLO1575 8,819 3,326.88 3,352.66 3,326.88 0.38 2.37 ADS#10 ‐ 2 Oct 2000 0.00 +9 7296.99 0.0498 38,009 0.3124 0.192PLO1550 8,330 2,963.04 2,963.67 2,963.04 0.36 2.15 ADS#11 ‐ 29 Nov 2000 0.00 +7 4896.66 0.0334 40,037 0.3291 0.122PLO1510 12,542 4,882.94 4,882.69 4,882.94 0.39 2.19 ADS#12 ‐ 2001 15,838.76 15,840.96 +5 6751.85 0.0461 96,450 0.7928 0.070PLO1480 9,639 3,283.97 3,283.07 3,283.97 0.34 1.77 ADS#13 ‐ 2001 6,973.34 6,978.94 +3 1179.46 0.0080 31,988 0.2629 0.037PLO1450 9,233 2,812.80 2,815.54 2,812.80 0.30 1.61 ADS#14 ‐ 2001 9,801.08 9,772.91 ‐3 133.03 0.0009 7,825 0.0643 0.017PLO1430 6,399 2,466.98 2,420.89 2,466.98 0.39 2.35 ADS#15 ‐ 2001 103.69 133.62 Total 43408.15 0.2961 251046 2.06PLO1400 7,118 2,243.14 2,243.30 2,243.14 0.32 2.00 ADS#16 ‐ 2002 2,807.18 2,808.83PLO1375 5,937 2,480.95 2,481.85 2,480.95 0.42 2.62 ADS#17 ‐ 2002 12,902.05PLO1350 7,537 2,653.44 2,654.57 2,653.44 0.35 2.06 ADS#18 ‐ 2002 66.73PLO1330 6,848 2,493.18 2,516.71 2,493.18 0.36 2.12 ADS#19 ‐ 2003 434.61PLO1300 5,871 1,979.14 1,894.49 1,891.98 0.32 1.70 49,882.55 67,016.84PLO1250 14,271 3,578.25 3,880.47 3,578.25 0.25 1.23PLO1200 11,878 3,945.01 3,944.81 3,945.01 0.33 1.75PLO1150 6,759 2,345.08 2,345.03 2,345.08 0.35 1.88PLO1140 10,660 1,493.46 1,488.06 1,580.62 0.15 0.74

197,009 66,638.74 63,256.11 67,016.84 0.34121,659 43,489 48,776.67 48,560.55 0.40

Stones


STONES FLITCH

Table 9.21: PALOMIDES Sorthouse Sizing Record


CaratsCarats

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 752.98 0.0065 69 0.0006 ‐3.2246 5 0.0009 ‐3.0370 5 0.0005 ‐3.2697 3 0.0003 ‐3.4683 2 0.0002 ‐3.6196 5 0.0004 ‐3.3994 10 0.0010 ‐2.9840 8 0.0009 ‐3.0623 3 0.0005 ‐3.3290 5 0.0007 ‐3.1534 9 0.0015 ‐2.8193 9 0.0012 ‐2.9230 1 0.0001 ‐3.8356 3 0.0005 ‐3.2916 12 0.0008 ‐3.0753 5 0.0004 ‐3.3758 5 0.0007 ‐3.1309 ‐ 0.0000 10.91+21 1582.71 0.0137 391 0.0034 ‐2.4712 24 0.0044 ‐2.3558 24 0.0026 ‐2.5885 31 0.0035 ‐2.4541 23 0.0028 ‐2.5589 37 0.0030 ‐2.5302 32 0.0033 ‐2.4789 26 0.0028 ‐2.5504 23 0.0036 ‐2.4444 16 0.0022 ‐2.6482 18 0.0030 ‐2.5183 29 0.0038 ‐2.4148 24 0.0035 ‐2.4554 28 0.0048 ‐2.3216 49 0.0034 ‐2.4643 55 0.0046 ‐2.3344 19 0.0028 ‐2.5511 3 0.0003 ‐3.5506 4.05+19 2716.315 0.0235 1,268 0.0110 ‐1.9603 59 0.0108 ‐1.9651 82 0.0088 ‐2.0549 75 0.0085 ‐2.0704 116 0.0139 ‐1.8562 170 0.0136 ‐1.8679 91 0.0094 ‐2.0250 79 0.0086 ‐2.0677 76 0.0119 ‐1.9253 56 0.0079 ‐2.1042 92 0.0155 ‐1.8098 88 0.0117 ‐1.9327 100 0.0146 ‐1.8356 53 0.0090 ‐2.0444 142 0.0100 ‐2.0022 138 0.0116 ‐1.9349 85 0.0126 ‐1.9005 17 0.0016 ‐2.7973 2.14+17 1948.6 0.0168 1,404 0.0121 ‐1.9160 86 0.0158 ‐1.8015 102 0.0110 ‐1.9601 121 0.0137 ‐1.8626 77 0.0092 ‐2.0342 152 0.0121 ‐1.9165 150 0.0156 ‐1.8079 86 0.0093 ‐2.0308 65 0.0102 ‐1.9932 83 0.0117 ‐1.9333 51 0.0086 ‐2.0660 84 0.0111 ‐1.9529 68 0.0099 ‐2.0031 71 0.0121 ‐1.9175 98 0.0069 ‐2.1632 169 0.0142 ‐1.8469 90 0.0133 ‐1.8756 47 0.0044 ‐2.3557 1.39+15 1338.37 0.0116 1,247 0.0108 ‐1.9675 87 0.0160 ‐1.7965 87 0.0094 ‐2.0292 118 0.0134 ‐1.8735 99 0.0119 ‐1.9250 155 0.0124 ‐1.9080 99 0.0103 ‐1.9884 83 0.0090 ‐2.0463 62 0.0097 ‐2.0137 58 0.0081 ‐2.0889 152 0.0256 ‐1.5917 80 0.0106 ‐1.9741 76 0.0111 ‐1.9548 58 0.0099 ‐2.0053 128 0.0090 ‐2.0472 100 0.0084 ‐2.0747 85 0.0126 ‐1.9005 42 0.0039 ‐2.4045 1.07+13 4344.445 0.0375 5,742 0.0496 ‐1.3044 315 0.0579 ‐1.2377 420 0.0451 ‐1.3454 469 0.0532 ‐1.2742 408 0.0490 ‐1.3100 653 0.0521 ‐1.2835 463 0.0480 ‐1.3185 436 0.0472 ‐1.3259 348 0.0544 ‐1.2645 338 0.0475 ‐1.3234 290 0.0488 ‐1.3112 326 0.0433 ‐1.3640 368 0.0537 ‐1.2697 272 0.0463 ‐1.3341 487 0.0341 ‐1.4669 570 0.0480 ‐1.3189 356 0.0527 ‐1.2784 60 0.0056 ‐2.2496 0.76+12 3378.065 0.0292 6,892 0.0596 ‐1.2251 452 0.0830 ‐1.0809 468 0.0503 ‐1.2984 509 0.0577 ‐1.2387 427 0.0513 ‐1.2902 845 0.0674 ‐1.1715 611 0.0634 ‐1.1980 488 0.0529 ‐1.2769 528 0.0825 ‐1.0835 505 0.0709 ‐1.1491 322 0.0542 ‐1.2657 363 0.0482 ‐1.3173 403 0.0588 ‐1.2303 306 0.0521 ‐1.2830 510 0.0357 ‐1.4469 562 0.0473 ‐1.3250 425 0.0629 ‐1.2015 218 0.0205 ‐1.6893 0.49+11 5808.13 0.0502 17,812 0.1539 ‐0.8127 1051 0.1930 ‐0.7144 1411 0.1517 ‐0.8191 1547 0.1754 ‐0.7559 1291 0.1550 ‐0.8097 2188 0.1745 ‐0.7583 1296 0.1345 ‐0.8714 1267 0.1372 ‐0.8626 1081 0.1689 ‐0.7723 904 0.1270 ‐0.8962 978 0.1647 ‐0.7832 1148 0.1523 ‐0.8173 1044 0.1525 ‐0.8169 804 0.1369 ‐0.8635 1418 0.0994 ‐1.0028 1776 0.1495 ‐0.8253 1,004 0.1485 ‐0.8281 216 0.0203 ‐1.6933 0.326+9 6924.23 0.0598 36,126 0.3122 ‐0.5056 2061 0.3785 ‐0.4219 3037 0.3264 ‐0.4862 2850 0.3232 ‐0.4906 2849 0.3420 ‐0.4660 4381 0.3493 ‐0.4568 3027 0.3140 ‐0.5030 3153 0.3415 ‐0.4666 1999 0.3124 ‐0.5053 1804 0.2534 ‐0.5961 1883 0.3172 ‐0.4987 1864 0.2473 ‐0.6068 2032 0.2967 ‐0.5276 1637 0.2788 ‐0.5547 2851 0.1998 ‐0.6995 3338 0.2810 ‐0.5513 2,094 0.3098 ‐0.5089 624 0.0585 ‐1.2326 0.192+7 4589.71 0.0397 37,543 0.3244 ‐0.4889 2036 0.3739 ‐0.4272 2961 0.3183 ‐0.4972 3448 0.3910 ‐0.4079 2396 0.2876 ‐0.5412 4371 0.3485 ‐0.4578 2964 0.3075 ‐0.5122 2481 0.2687 ‐0.5707 2146 0.3354 ‐0.4745 2080 0.2922 ‐0.5343 2494 0.4201 ‐0.3767 2648 0.3513 ‐0.4543 2449 0.3576 ‐0.4466 1932 0.3291 ‐0.4827 3229 0.2263 ‐0.6454 3325 0.2799 ‐0.5530 2,306 0.3412 ‐0.4670 1,210 0.1135 ‐0.9450 0.122+5 6350.39 0.0549 90,873 0.7853 ‐0.1050 6161 1.1315 0.0537 7047 0.7574 ‐0.1207 7981 0.9050 ‐0.0434 7167 0.8604 ‐0.0653 10475 0.8352 ‐0.0782 6351 0.6589 ‐0.1812 5125 0.5551 ‐0.2556 6386 0.9980 ‐0.0009 5670 0.7966 ‐0.0988 5577 0.9394 ‐0.0272 6315 0.8379 ‐0.0768 5507 0.8042 ‐0.0946 3336 0.5682 ‐0.2455 5913 0.4143 ‐0.3826 8853 0.7453 ‐0.1277 4,499 0.6656 ‐0.1768 1,422 0.1334 ‐0.8749 0.070+3 1075.93 0.0093 29,301 0.2532 ‐0.5965 2275 0.4178 ‐0.3790 3078 0.3308 ‐0.4804 3020 0.3424 ‐0.4654 2477 0.2974 ‐0.5267 3357 0.2677 ‐0.5724 1769 0.1835 ‐0.7363 1401 0.1517 ‐0.8189 1974 0.3085 ‐0.5108 2004 0.2815 ‐0.5505 2687 0.4526 ‐0.3443 2055 0.2727 ‐0.5644 1930 0.2818 ‐0.5500 1084 0.1846 ‐0.7337 2267 0.1589 ‐0.7990 1633 0.1375 ‐0.8618 1,244 0.1841 ‐0.7351 2,983 0.2798 ‐0.5531 0.037‐3 116.42 0.0010 6,848 0.0592 ‐1.2279 555 0.1019 ‐0.9917 723 0.0777 ‐1.1095 720 0.0816 ‐1.0881 612 0.0735 ‐1.1339 674 0.0537 ‐1.2697 224 0.0232 ‐1.6338 200 0.0217 ‐1.6643 319 0.0499 ‐1.3023 718 0.1009 ‐0.9962 977 0.1646 ‐0.7837 531 0.0705 ‐1.1521 499 0.0729 ‐1.1375 374 0.0637 ‐1.1958 469 0.0329 ‐1.4833 236 0.0199 ‐1.7018 463 0.0685 ‐1.1643 1,096 0.1028 ‐0.9879 0.017

Total 40926.3 0.35 235,516 2.04 15167 2.8 19445 2.1 20892 2.4 17944 2.2 27463 2.2 17087 1.8 14833 1.6 15010 2.3 14241 2.0 15530 2.6 15540 2.1 14501 2.1 9958 1.7 17573 1.2 20760 1.7 12675 1.9 7938 0.7 0.17BCM

PL01550*Selected Flitch* PL01630* PL01600* PL01575*

8819 8330

Table 9.22: Palomides Comparison of Mined Flitches

PL01510*40,926.30 2444.285 3164.59 3352.66 2963.67 4,882.69

12,542

0.354 0.449 0.340 0.380 0.356 0.389

115,722 5445 9304

PL01450*2,815.540.305

9,233

PL01480*3,283.070.341

9,639

PL01400*2,243.300.315

7,118

PL01430*2,420.890.378

6,399

PL01350*2,654.570.352

7,537

PL013752,481.850.418

5,937

PL01300*1,894.490.323

5,871

PL01330*2,516.710.368

6,848

PL01200*3,944.810.332

11,878

PL012503,880.470.272

14,271

PL011401,488.060.140

10,660

PL01150*2,345.030.347

6,759

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1 2 3 4 5 6 7 8 9 10 11 12 13

Log

Log

Log

Log

Log

Log

Log

Log

‐4.5000

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.00001 2 3 4 5 6 7 8 9 10 11 12 13

Log

Log

Log

Log

Log

Log

Log

Log

Log

Average Selected Flitches

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.00001 2 3 4 5 6 7 8 9 10 11 12 13

Average Selected Flitches

Month Oct-99 Nov-99 Feb-00 Jun-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02 Total Model 141000 BCM* *Estimated

Size cts cts cts cts cts cts cts cts cts cts mss Weight cts Stones st/BCM Cts/BCMSpecial 70.93 50.89 62.33 12.97 97.73 133.24 256.37 0.00 0.00 684.46 15.50 Special 684.46 44 0.0003 0.0049+10cts 9.97 0.00 10.61 21.55 0.00 9.84 30.43 0.00 20.78 103.18 10.30 +10 103.18 10 0.0001 0.0007+9cts 9.69 9.70 0.00 0.00 37.44 9.11 46.40 0.00 0.00 112.34 9.30 +9 112.34 12 0.0001 0.0008+8cts 24.05 16.50 8.09 0.00 81.66 8.71 32.59 0.00 0.00 171.60 8.30 +8 171.60 21 0.0001 0.0012+7cts 15.36 6.97 22.46 0.00 58.86 28.51 21.52 0.00 14.10 167.78 7.30 +7 167.78 23 0.0002 0.0012+6cts 5.85 30.40 24.39 0.00 67.79 6.64 56.35 0.00 19.22 210.64 6.30 +6 210.64 33 0.0002 0.0015+5cts 16.50 91.34 57.25 0.00 145.71 86.07 68.94 0.00 32.22 498.03 5.30 +5 498.03 94 0.0007 0.0035+4cts 25.25 118.12 58.29 16.16 222.51 66.31 118.00 8.40 33.89 666.93 4.30 +4 666.93 155 0.0011 0.0047+3cts 62.51 280.46 100.18 9.52 351.84 176.38 228.39 3.43 62.42 1,275.13 3.30 +3 1275.13 386 0.0027 0.00908gr 111.78 494.97 211.66 33.40 772.12 358.63 519.04 2.13 159.40 2,663.13 2.30 +2 2663.13 1158 0.0082 0.01896gr 97.51 380.67 160.07 6.33 531.71 263.84 359.55 4.58 109.48 1,913.74 1.30 +1 6109.24 4699 0.0333 0.04335gr 70.82 289.09 115.78 7.80 411.25 202.68 244.72 1.32 76.47 1,419.93 0.77 +.66 3239.10 4207 0.0298 0.02304gr 166.68 516.11 220.25 12.58 822.45 379.11 490.60 4.08 163.71 2,775.57 0.326 +11 10826.58 33210 0.2355 0.07683gr 142.26 644.87 252.82 16.89 974.55 460.27 556.35 2.29 188.80 3,239.10 0.192 +9 8542.14 44567 0.3161 0.0606+11 495.87 2,037.99 831.23 67.99 3,334.45 1,479.21 1,985.56 23.55 570.73 10,826.58 0.122 +7 5505.78 45036 0.3194 0.0390+9 416.03 1,560.36 645.71 35.92 2,662.10 1,178.28 1,566.89 17.22 459.63 8,542.14 0.070 +5 7404.01 105950 0.7514 0.0525+7 247.75 974.63 360.20 15.71 1,743.86 787.15 1,047.96 10.28 318.24 5,505.78 0.037 +3 1534.66 41794 0.2964 0.0109+5 240.48 856.01 274.75 14.09 2,706.12 1,112.85 1,714.45 18.04 467.22 7,404.01 0.017 ‐3 167.82 9871 0.0700 0.0012

+3 12.48 55.17 12.38 0.00 735.07 213.42 399.72 6.76 99.66 1,534.66 Total 49882.55 291272 2.07 0.35

‐3 0.36 2.26 0.50 0.00 81.54 13.09 57.25 1.61 11.21 167.82Total 2,242.13 8,416.51 3,428.95 270.91 15,838.76 6,973.34 9,801.08 103.69 2,807.18 49,882.55

RIO 1999 - 2002

Table 9.23: Palomides Production 1999/2002

22‐Aug‐99 22‐Dec‐99 18‐Nov‐99 21‐Jun‐00 19‐Jul‐00 8‐Aug‐00 15‐Aug‐00 11‐Dec‐01 29‐Aug‐00 13‐Sep‐00 29‐Nov‐00 11‐Dec‐00 7‐Jan‐01 21‐Feb‐01 21‐Feb‐01 20‐Jul‐01 30‐Jul‐01 31‐Jul‐01 1‐Aug‐01 2‐Aug‐01 3‐Aug‐01 pDTCSieve Size Total Carats 13Sep‐23Sep SCO1700 SC01675 SCO1650 SC01620 SC01580 SC01550 SC01530 SC01511 SC01500 SC01480 SC01450 SC01425 SC01400 SC01380 SC01350 SC01330 SC01300 SC01280 SC01250 SC01200 SC01150 SC01050

+23 461.58 385.42 0 9.26 39.835 32.17 48.67 41.035 22.8 14.075 20.62 26.92 46.71 0 66.905 50.985 41.595+21 1,336.57 1,138.92 6.29 11.475 111.835 103.525 98.895 86.35 106.565 106.585 86.33 66.83 32.785 51.4 179.89 205.41 82.405+19 2,927.44 1,767.21 12.69 871.465 165.115 189.835 152.125 189.56 139.115 162.455 111.535 145.145 52.68 95.145 276.075 201.67 162.83+17 1,617.22 985.86 0.9 369.61 83.34 67.275 68.43 81.415 67.15 92.91 72.56 100.705 55.33 81.325 260.85 122.385 93.035+15 1,442.13 818.16 0 431.61 46.4 106.33 72.11 94.245 61.835 69.78 33.215 39.525 47.68 50.81 192.355 127.02 69.21+13 3,280.19 2,427.68 9.265 318.445 214.17 187.1 226.96 252.895 201.95 203.68 127.4 197.515 108.755 169.02 524.8 317.205 221.025+12 11,860.22 2,019.43 1977.545 1374.17 1320.26 460.23 1499.86 1464.375 826.34 9.195 538.905 168.265 210.824 171.185 242.805 186.27 191.375 100.77 130.17 91.99 152.11 369.91 225.405 148.265+11 7,030.97 3,125.14 740.785 442.635 406.1 79.39 560.11 505.215 310.835 21.02 125.29 308.62 280.195 245.225 259.14 254.58 245.905 166.725 223.435 202.865 219.63 714.45 429.95 288.87+9 8,475.13 3,961.18 803.575 490.596 441.005 101.395 732.84 704.335 456.895 4.265 54.51 410.285 455.775 292.385 382.49 304.01 331.155 197.49 258.931 155.55 281.69 724.54 576.83 314.585+7 8,092.79 2,740.37 487.794 306.69 242.28 71.79 480.275 383.65 272.3 7.035 2599.25 233.995 277.12 221.29 215.97 191.09 188.02 150.385 209.545 112.58 213.31 501.355 466.885 260.18+5 8,349.68 3,406.06 400.165 218.65 164.235 92.285 790.01 732.285 519.775 8.27 50.95 358.81 385.46 300.555 246.905 234.17 269.205 181.07 210.16 158.455 225.59 1966.995 532.875 302.8+3 1,060.58 549.80 12.59 5.49 2.24 23.26 147.045 112.54 107.435 1.26 15.78 72.43 60.84 37.8 26.675 27.385 37.65 28.825 28.64 29.215 33.845 83.145 97.295 69.195‐3 96.66 41.87 0.005 0 0 3 15.09 11.615 14.84 0.18 2.565 6.51 3.96 1.82 1.195 1.19 2.81 2.56 1.535 1.85 2 7.5 9.22 7.215

Total 53,990.14 23,367.07 4422.459 2838.231 2576.12 831.35 4225.23 3914.015 2508.42 51.225 3387.25 2219.61 2360.409 1937.45 2120.68 1798.11 1915.605 1279.485 1639.056 1096.445 1575.875 5868.77 3363.135 2061.21

22‐Aug‐99 22‐Dec‐99 18‐Nov‐99 21‐Jun‐00 19‐Jul‐00 8‐Aug‐00 15‐Aug‐00 11‐Dec‐01 29‐Aug‐00 13‐Sep‐00 29‐Nov‐00 11‐Dec‐00 7‐Jan‐01 21‐Feb‐01 21‐Feb‐01 20‐Jul‐01 30‐Jul‐01 31‐Jul‐01 1‐Aug‐01 2‐Aug‐01 3‐Aug‐01 pDTCSieve Size Total Stones 13Sep‐23Sep SCO1700 SC01675 SCO1650 SC01620 SC01580 SC01550 SC01530 SC01511 SC01500 SC01480 SC01450 SC01425 SC01400 SC01380 SC01350 SC01330 SC01300 SC01280 SC01250 SC01200 SC01150 SC01050

+23 45.00 31.00 0 1 4 3 5 3 4 2 2 3 4 0 7 5 2+21 322.00 236.00 1 3 23 24 22 18 22 27 18 14 7 14 38 69 22+19 1844.00 644.00 6 928 74 74 69 88 65 66 50 64 24 42 126 93 75+17 1944.00 577.00 1 1062 59 48 51 54 45 63 48 69 41 56 192 88 67+15 3176.00 625.00 0 2257 42 116 61 79 56 58 34 35 45 48 173 107 65+13 6415.00 2,673.00 12 2520 273 267 308 321 253 262 176 255 141 257 678 413 279+12 21627.00 3,477.00 1929 1303 1260 314 1534 1521 855 18 8032 318 467 348 551 382 397 208 272 189 288 721 439 281+11 23120.00 7,827.00 2062 1286 981 246 1646 1499 905 91 2916 923 901 733 807 748 732 509 699 603 669 2070 1251 843+9 41356.00 16,826.00 3616 2277 1913 261 3574 3688 2275 18 238 2205 1916 1471 2139 1615 1787 992 1333 758 1360 3529 2865 1526+7 44862.00 18,985.00 240 0 0 0 0 0 130 65 17830 2084 2291 1716 1891 1587 1660 1232 1785 963 1797 3956 3566 2069+5 57649.00 40,944.00 0 0 0 0 0 0 592 136 787 5737 5517 4141 3605 3219 3827 2680 3186 2344 3418 7528 6489 4443+3 17973.00 12,242.00 0 0 0 0 0 0 407 42 445 2147 1657 1022 736 732 1018 827 799 822 975 2306 2239 1799‐3 3938.24 1,968.24 0 0 0 0 0 0 873 11 151 383 233 107 70 70 165 151 90 109 118 441 542 424

Total 217480.24 107,055.24 7847 4866 4154 821 6754 6708 6036.94118 381 30399 14272 13514 10054 10362 8798 10064 6927 8604 6050 9042 21765 18166 11895

Flitch BCM received sized sold Cts/BCM St/BCM Export Sale Number Valuation SalesSCO1750 12282 5367.26 5367.26 0.44 0.64 ADS#1 ‐ May 99 5,367.26 DTC Sieve 13Sep‐23Sep Cts/BCM 13Sep‐23Sept St/BCM Cts/StSCO1720 10405 4133.51 4133.51 0.40 ADS#2 ‐ 7 June 1999 +23 321.02 0.0044 31 0.0005 10.36SCO1700 10821 4448.03 4422.459 4448.03 0.41 0.45 ADS#3 ‐ 14 July 1999 +21 949.95 0.0129 236 0.0040 4.03SCO1675 7933 2838.53 2838.231 2838.53 0.36 0.52 ADS#4 ‐ Sept / Oct 1999 4,135.17 4,133.51 +19 1465.27 0.0199 644 0.0109 2.28SCO1650 8240 2575.44 2576.12 2575.44 0.00 0.000 ADS#5 ‐ Nov / Dec 1999 7,195.82 7,201.95 +17 825.68 0.0112 577 0.0098 1.43SCO1620 9577 831.44 831.35 831.44 0.09 0.09 ADS#6 ‐ 28 Feb 2000 2,660.10 2,660.05 +15 687.12 0.0093 625 0.0106 1.10SCO1580 11277 4225.64 4225.23 4225.64 0.37 0.60 ADS#7 ‐ 8 May 2000 +13 2004.70 0.0272 2673 0.0452 0.75SC01550 10921 3921.91 3914.015 3921.91 0.36 0.61 ADS#8 ‐ 12 July 2000 +12 1684.90 0.0229 3477 0.0588 0.48SC01530 7654 2523.96 2508.42 2523.96 0.33 0.79 ADS#9 ‐ 23 Aug 2000 830.99 831.44 +11 2581.69 0.0351 7827 0.1323 0.330SCO1511 51.225 80.29 0.00 0.00 ADS#10 ‐ 2 Oct 2000 8,184.85 10,555.95 +9 3342.58 0.0454 16826 0.2845 0.199SC01500 7544 2560.28 3387.25 2560.28 0.34 4.03 ADS#11 ‐ 29 Nov 2000 5,520.69 3,151.49 +7 2289.10 0.0311 18985 0.3210 0.121SC01480 6114 2220.55 2219.61 2220.55 0.36 2.33 ADS#12 ‐ 2001 3,972.83 3,973.89 +5 2869.09 0.0390 40944 0.6923 0.070SC01450 7416 2228.99 2360.409 2228.99 0.30 1.82 ADS#13 ‐ 2001 7,456.49 7,459.65 +3 453.22 0.0062 12242 0.2070 0.037SC01425 6495 1937.59 1937.45 1937.59 0.30 1.55 ADS#14 ‐ 2001 1,608.25 368.77 ‐3 33.46 0.0005 1968.2 0.0333 0.017SC01400 7047 2121.33 2120.68 2121.33 0.30 1.47 ADS#15 ‐ 2001 4,331.50 5,570.80 Total 19507.75 0.26 107055 1.81SC01380 6778 2047.43 1798.11 2047.43 0.30 1.30 ADS#16 ‐ 2002 2,650.90 2,651.80SC01350 6032 1924.56 1915.605 1924.56 0.32 1.67 ADS#17 ‐ 2002 5,338.79SC01330 4396 1279.57 1279.485 1279.57 0.29 1.58 ADS#18 ‐ 2002 55.65SC01300 5985 1638.94 1639.056 1638.94 0.27 1.44 ADS#19 ‐ 2003 2,660.33SC01280 3190 1096.57 1096.445 1096.57 0.34 1.90 48,547.59 61,981.33SC01250 4540 1555.72 1575.875 1555.72 0.34 1.99SC01200 7734 4445.3 5868.77 4445.3 0.57 2.81SC01150 7929 3378.85 3363.135 3378.85 0.43 2.29SC01050 4121 2333.54 2061.21 2333.54 0.57 2.89

174431 61634.94 53990.14 61715.23 0.3559144 28208.94 29235.84 28208.94 0.48

Stones


STONES FLITCH

Table 9.24: SACRAMORE Sorthouse Sizing Record


CaratsCarats

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm Stones St/BCM Log st/bcm MSS

+23 385.415 0.0055 37 0.0005 ‐3.2772 1 0.0001 ‐3.8776 4 0.0007 ‐3.1843 3 0.0004 ‐3.3930 5 0.0008 ‐3.1136 3 0.0004 ‐3.3709 4 0.0006 ‐3.2290 2 0.0003 ‐3.4794 2 0.0005 ‐3.3420 3 0.0005 ‐3.2999 4 0.0013 ‐2.9017 0 0.0000 7 0.0009 ‐3.0433 5 0.0006 ‐3.2002 2 0.0005 ‐3.3140 10.42+21 1138.915 0.0163 280 0.0040 ‐2.3982 3 0.0004 ‐3.4005 23 0.0038 ‐2.4246 24 0.0032 ‐2.4900 22 0.0034 ‐2.4702 18 0.0026 ‐2.5927 22 0.0032 ‐2.4887 27 0.0045 ‐2.3491 18 0.0041 ‐2.3878 14 0.0023 ‐2.6309 7 0.0022 ‐2.6587 14 0.0031 ‐2.5109 38 0.0049 ‐2.3086 69 0.0087 ‐2.0604 22 0.0053 ‐2.2726 4.07+19 1767.21 0.0252 784 0.0112 ‐1.9510 928 0.1230 ‐0.9101 74 0.0121 ‐1.9171 74 0.0100 ‐2.0009 69 0.0106 ‐1.9737 88 0.0125 ‐1.9035 65 0.0096 ‐2.0182 66 0.0109 ‐1.9609 50 0.0114 ‐1.9441 64 0.0107 ‐1.9709 24 0.0075 ‐2.1236 42 0.0093 ‐2.0338 126 0.0163 ‐1.7880 93 0.0117 ‐1.9307 75 0.0182 ‐1.7399 2.25+17 985.86 0.0141 689 0.0098 ‐2.0071 1062 0.1408 ‐0.8515 59 0.0096 ‐2.0155 48 0.0065 ‐2.1889 51 0.0079 ‐2.1050 54 0.0077 ‐2.1156 45 0.0066 ‐2.1779 63 0.0104 ‐1.9811 48 0.0109 ‐1.9618 69 0.0115 ‐1.9382 41 0.0129 ‐1.8910 56 0.0123 ‐1.9089 192 0.0248 ‐1.6051 88 0.0111 ‐1.9547 67 0.0163 ‐1.7889 1.43+15 818.16 0.0117 746 0.0107 ‐1.9726 2257 0.2992 ‐0.5241 42 0.0069 ‐2.1631 116 0.0156 ‐1.8057 61 0.0094 ‐2.0272 79 0.0112 ‐1.9504 56 0.0083 ‐2.0829 58 0.0096 ‐2.0170 34 0.0077 ‐2.1116 35 0.0058 ‐2.2330 45 0.0141 ‐1.8506 48 0.0106 ‐1.9758 173 0.0224 ‐1.6504 107 0.0135 ‐1.8698 65 0.0158 ‐1.8021 1.10+13 2427.675 0.0347 3,205 0.0458 ‐1.3395 2520 0.3340 ‐0.4762 273 0.0447 ‐1.3502 267 0.0360 ‐1.4437 308 0.0474 ‐1.3240 321 0.0456 ‐1.3415 253 0.0373 ‐1.4280 262 0.0434 ‐1.3622 176 0.0400 ‐1.3975 255 0.0426 ‐1.3705 141 0.0442 ‐1.3546 257 0.0566 ‐1.2471 678 0.0877 ‐1.0572 413 0.0521 ‐1.2833 279 0.0677 ‐1.1694 0.76+12 2019.434 0.0288 4,140 0.0591 ‐1.2284 8032 1.0647 0.0272 318 0.0520 ‐1.2839 467 0.0630 ‐1.2009 348 0.0536 ‐1.2710 551 0.0782 ‐1.1069 382 0.0564 ‐1.2490 397 0.0658 ‐1.1817 208 0.0473 ‐1.3250 272 0.0454 ‐1.3425 189 0.0592 ‐1.2273 288 0.0634 ‐1.1977 721 0.0932 ‐1.0305 439 0.0554 ‐1.2568 281 0.0682 ‐1.1663 0.49+11 3125.14 0.0446 9,418 0.1345 ‐0.8714 2916 0.3865 ‐0.4128 923 0.1510 ‐0.8211 901 0.1215 ‐0.9154 733 0.1129 ‐0.9475 807 0.1145 ‐0.9411 748 0.1104 ‐0.9572 732 0.1214 ‐0.9160 509 0.1158 ‐0.9363 699 0.1168 ‐0.9326 603 0.1890 ‐0.7235 669 0.1474 ‐0.8316 2070 0.2676 ‐0.5724 1251 0.1578 ‐0.8020 843 0.2046 ‐0.6892 0.332+9 3961.176 0.0566 19,967 0.2851 ‐0.5451 238 0.0315 ‐1.5010 2205 0.3606 ‐0.4429 1916 0.2584 ‐0.5878 1471 0.2265 ‐0.6450 2139 0.3035 ‐0.5178 1615 0.2383 ‐0.6229 1787 0.2963 ‐0.5283 992 0.2257 ‐0.6465 1333 0.2227 ‐0.6522 758 0.2376 ‐0.6241 1360 0.2996 ‐0.5235 3529 0.4563 ‐0.3408 2865 0.3613 ‐0.4421 1526 0.3703 ‐0.4314 0.198+7 2740.37 0.0391 22,641 0.3232 ‐0.4905 17830 2.3635 0.3735 2084 0.3409 ‐0.4674 2291 0.3089 ‐0.5101 1716 0.2642 ‐0.5781 1891 0.2683 ‐0.5713 1587 0.2341 ‐0.6305 1660 0.2752 ‐0.5604 1232 0.2803 ‐0.5524 1785 0.2982 ‐0.5254 963 0.3019 ‐0.5202 1797 0.3958 ‐0.4025 3956 0.5115 ‐0.2911 3566 0.4497 ‐0.3470 2069 0.5021 ‐0.2992 0.121+5 3406.055 0.0486 48,606 0.6939 ‐0.1587 787 0.1043 ‐0.9816 5737 0.9383 ‐0.0276 5517 0.7439 ‐0.1285 4141 0.6376 ‐0.1955 3605 0.5116 ‐0.2911 3219 0.4749 ‐0.3234 3827 0.6344 ‐0.1976 2680 0.6096 ‐0.2149 3186 0.5323 ‐0.2738 2344 0.7348 ‐0.1338 3418 0.7529 ‐0.1233 7528 0.9734 ‐0.0117 6489 0.8184 ‐0.0870 4443 1.0781 0.0327 0.070+3 549.795 0.0078 14,773 0.2109 ‐0.6759 445 0.0590 ‐1.2292 2147 0.3512 ‐0.4545 1657 0.2234 ‐0.6508 1022 0.1574 ‐0.8031 736 0.1044 ‐0.9811 732 0.1080 ‐0.9666 1018 0.1688 ‐0.7727 827 0.1881 ‐0.7256 799 0.1335 ‐0.8745 822 0.2577 ‐0.5889 975 0.2148 ‐0.6681 2306 0.2982 ‐0.5255 2239 0.2824 ‐0.5492 1799 0.4365 ‐0.3600 0.037‐3 41.865 0.0006 2,462 0.0351 ‐1.4541 151 0.0200 ‐1.6986 383 0.0626 ‐1.2031 233 0.0314 ‐1.5028 107 0.0165 ‐1.7832 70 0.0099 ‐2.0029 70 0.0103 ‐1.9860 165 0.0274 ‐1.5630 151 0.0343 ‐1.4641 90 0.0150 ‐1.8228 109 0.0342 ‐1.4664 118 0.0260 ‐1.5852 441 0.0570 ‐1.2440 542 0.0684 ‐1.1652 424 0.1029 ‐0.9876 0.017

Total 23367.07 0.33 127,748 1.82 37170 4.9 14272 2.3 13514 1.8 10054 1.5 10362 1.5 8798 1.3 10064 1.7 6927 1.6 8604 1.4 6050 1.9 9042 2.0 21765 2.8 18166 2.3 11895 2.9 0.18BCM 7,734 7,929 4,1216,778 6,032 4,396 3,190 4,5405,985

0.344 0.347

6,495 7,047

0.759 0.424 0.500

70,043 7544 6114 7416

0.265 0.318 0.2913,363.1423,367 3387.25 2219.61

0.298 0.3011,279.49 1,639.06

0.2740.334 0.449 0.363 0.318

SC010502360.409 1,937.45 2,120.68 1,798.11 1,915.61 2,061.211,096.45 1,575.88 5,868.77

SC01280 SC01250 SC01200 SC01150

Table 9.25: Sacramore Comparison of Mined Flitches

SC01425 SC01400 SC01380 SC01300Selected Flitch* SC01500 SC01480 SC01450 SC01330SC01350

‐4.5000

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1.0000

1 2 3 4 5 6 7 8 9 10 11 12 13

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1 2 3 4 5 6 7 8 9 10 11 12 13

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

Log st/bcm

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.00001 2 3 4 5 6 7 8 9 10 11 12 13

Log st/bcm

Month Sep‐99 Oct‐99 Nov‐99 Feb‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Total Model 148400 BCM* *Estimated

Size cts cts cts cts cts cts cts cts cts cts cts cts cts mss Weight cts Stones st/BCM Cts/BCMSpecial 45.76 43.70 54.30 71.59 13.91 11.57 60.77 27.12 52.70 12.84 35.81 19.00 449 15.50 Special 449.07 29.0 0.0002 0.0030+10cts 21.05 0.00 0.00 20.95 10.42 9.91 20.83 9.89 20.60 0.00 0.00 0.00 114 10.30 +10 113.65 11.0 0.0001 0.0008+9cts 18.63 9.43 18.47 9.23 0.00 27.66 9.09 17.79 9.36 0.00 36.37 9.49 166 9.30 +9 165.52 17.8 0.0001 0.0011+8cts 25.12 24.86 16.59 16.48 8.42 33.50 16.49 7.84 8.77 16.44 0.00 0.00 175 8.30 +8 174.51 21.0 0.0001 0.0012+7cts 14.27 43.02 29.13 0.00 21.47 44.54 14.20 14.65 80.76 21.94 0.00 7.48 291 7.30 +7 291.46 39.9 0.0003 0.0020+6cts 18.47 30.59 50.21 5.98 6.11 31.89 25.54 24.29 49.52 5.93 32.34 49.42 330 6.30 +6 330.29 52.4 0.0004 0.0022+5cts 48.23 10.50 61.98 41.80 41.37 84.52 31.69 47.90 111.07 20.44 46.63 32.09 578 5.30 +5 578.22 109.1 0.0007 0.0039+4cts 59.87 62.33 53.84 44.70 41.73 109.78 59.25 47.17 134.07 35.29 55.45 33.89 737 4.30 +4 737.37 171.5 0.0012 0.0050+3cts 151.87 95.30 111.72 99.32 79.55 206.01 116.69 113.71 223.72 48.92 104.12 98.57 1,450 3.30 +3 1449.50 439.2 0.0030 0.00988gr 263.50 202.86 237.63 165.47 38.22 373.99 226.05 216.04 428.84 104.57 250.66 133.01 2,641 2.30 +2 2640.84 1148.2 0.0077 0.01786gr 172.40 173.58 175.27 102.44 40.58 299.60 149.84 135.81 293.61 58.43 145.18 88.30 1,835 1.30 +1 5767.62 4436.6 0.0299 0.03895gr 130.52 111.27 122.90 98.93 24.52 173.00 112.68 86.64 226.26 36.91 101.10 68.78 1,294 0.77 +.66 3259.26 4232.8 0.0285 0.02204gr 266.27 240.19 221.37 197.41 39.17 426.77 256.74 162.77 388.46 75.72 226.14 138.06 2,639 0.33 +11 10388.27 31290.0 0.2108 0.07003gr 297.73 285.21 293.00 216.26 45.27 509.26 343.36 217.16 498.43 87.99 282.21 183.38 3,259 0.198 +9 8217.09 41419.7 0.2791 0.0554+11 960.18 911.71 834.33 650.83 117.28 1678.91 1021.61 795.65 1585.75 318.48 977.74 535.80 10,388 0.121 +7 5338.14 44103.8 0.2972 0.0360+9 731.86 669.09 628.07 463.63 97.26 1385.40 917.06 659.05 1239.82 267.29 710.08 448.48 8,217 0.070 +5 7068.21 100866.7 0.6797 0.0476+7 444.88 373.71 389.31 277.66 68.51 942.32 628.09 468.37 806.09 171.16 468.95 299.09 5,338 0.037 +3 1448.94 38933.0 0.2624 0.0098+5 438.93 298.15 298.69 173.78 99.34 1426.43 1121.07 721.09 1102.46 264.99 706.48 416.80 7,068 0.017 ‐3 129.63 7623.3 0.0514 0.0009

+3 24.93 5.14 8.12 3.30 32.95 373.13 346.52 185.27 186.83 56.95 142.33 83.47 1,449 Total 48547.59 274945 1.85 0.33

‐3 0.70 0.10 0.15 0.34 4.91 36.66 43.12 14.62 9.37 3.96 9.91 5.79 130 Total 4135.17 3590.74 3605.08 2660.10 830.99 8184.85 5520.69 3972.83 7456.49 1608.25 4331.50 2650.90 48,547.59

RIO 1999 - 2002

Table 9.26: Sacramore Production 1999/2002

PLVKBLDC009

Samp No 1.1 1.2 1.3 2.1 2.2 2.3 2.4 2.5 2.6 3.1 3.4 3.5 4.1 4.2 4.3 4.4 5.1 5.2 5.3 5.6 6.1 6.2 6.3 7.1 7.2 7.3 7.4 9.2 9A.2 9A.3 11.1 11.2 11.3 11.4 11.5 12.1 12.2 12.3 12.4 12.5Tonnes 1.3105 1.371 1.3945 1.444 1.4155 1.4635 1.525 1.394 1.456 1.199 1.3775 1.5095 1.376 1.403 1.492 1.44 1.5205 1.428 1.5265 1.554 0.173 1.484 1.4675 1.6935 1.4855 1.522 1.5665 1.5765 1.4705 1.5845 0.637 1.477 1.4735 1.5075 1.552 0.721 1.458 1.5655 1.519 1.509 56.0425 9.6135 8.826 74.482DTC+23 0 0 0 0+21 1 1 0 0 1+19 0 0 0 0+17 0 0 2 2+15 0 0 0 0+13 1 1 2 0 0 2+12 1 1 0 0 1+11 1 1 1 1 1 5 1 0 6+9 2 1 1 1 5 4 2 11+7 1 1 1 1 1 1 6 12 0 18+5 1 2 1 1 1 1 1 8 16 3 27+3 1 2 1 1 1 1 1 8 3 1 12‐3 0 1 1 2

36 37 9 82

LDC009Samp No 3.2 3.3 4.5 6.4 6.5 9.1 9A.1Tonnes 1.2055 1.3445 1.4665 1.5095 1.5725 1.0265 1.4885 9.6135 8.408DTC+23 0 0+21 0 0+19 0 0+17 0 0+15 0 0+13 0 0+12 0 0+11 1 1 1+9 1 2 1 4 3+7 10 1 1 12 2+5 11 2 1 2 16 5+3 2 1 3 1‐3 1 1 1

37 13

LDC009Samp No 1.4 1.5 5.4 5.5Tonnes 1.489 1.456 1.398 1.5085 1.4785 1.496 8.826DTC+23 0+21 0+19 0+17 1 1 2+15 0+13 0+12 0+11 0+9 1 1 2+7 0+5 1 1 1 3+3 1 1‐3 1 1

9

LDC004 LDC012LDC003 LDC005 LDC006 LDC007 LDC009A LDC011

Table 9.27: LDC DRILLING RECOVERIES

VK1

LDC001 LDC002

LDC011 LDC012LDC001 LDC002 LDC003 LDC004 LDC005

LDC004

LDC006 LDC007 LDC009A

mVKLDC001 LDC002 LDC003 LDC012LDC005 LDC006 LDC007 LDC009A LDC011

VKB 24.37 BCM VK1 4.17978 BCMmss Weight ST st/BCM Log st/BCM mss Weight ST st/BCM Log st/BCM15.50 Special 15.50 Special10.30 +10 10.30 +109.30 +9 9.30 +9

Tonnes 56.04 8.30 +8 Tonnes 9.6135 8.30 +8DTC Stones 7.30 +7 DTC Stones 7.30 +7+23 0 6.30 +6 +23 0 6.30 +6+21 1 5.30 +5 +21 0 5.30 +5+19 0 4.30 +4 +19 0 4.30 +4+17 0 3.30 +3 1 0.0410 ‐1.38678966 +17 0 3.30 +3+15 0 2.30 +2 +15 0 2.30 +2+13 2 1.30 +1 1 0.0410 ‐1.38678966 +13 0 1.30 +1+12 1 0.77 +.66 2 0.0821 ‐1.08575967 +12 0 0.77 +.66+11 5 0.33 +11 5 0.2052 ‐0.68781966 +11 1 0.33 +11 1 0.2392 ‐0.621153695+9 5 0.197 +9 5 0.2052 ‐0.68781966 +9 4 0.197 +9 4 0.9570 ‐0.019093703+7 6 0.124 +7 6 0.2462 ‐0.60863841 +7 12 0.124 +7 12 2.8710 0.458027551+5 8 0.082 +5 8 0.3283 ‐0.48369968 +5 16 0.082 +5 16 3.8280 0.582966288+3 8 0.039 +3 8 0.3283 ‐0.48369968 +3 3 0.039 +3 3 0.7177 ‐0.14403244‐3 0 0.017 ‐3 0 ‐3 1 0.017 ‐3 1 0.2392 ‐0.621153695

36 Total 36 1.48 37 Total 37 8.85

mVK 3.84 BCM Total 32.38 BCMmss Weight ST st/BCM Log st/BCM mss Weight ST st/BCM Log st/BCM15.50 Special 15.50 Special10.30 +10 10.30 +109.30 +9 9.30 +9

Tonnes 8.826 8.30 +8 Tonnes 74.48 8.30 +8DTC Stones 7.30 +7 DTC Stones 7.30 +7+23 0 6.30 +6 +23 0 6.30 +6+21 0 5.30 +5 +21 1 5.30 +5+19 0 4.30 +4 +19 0 4.30 +4+17 2 3.30 +3 +17 2 3.30 +3 1 0.0309 ‐1.5103+15 0 2.30 +2 1 0.2606 ‐0.58403609 +15 0 2.30 +2 1 0.0309 ‐1.5103+13 0 1.30 +1 1 0.2606 ‐0.58403609 +13 2 1.30 +1 2 0.0618 ‐1.2093+12 0 0.77 +.66 +12 1 0.77 +.66 2 0.0618 ‐1.2093+11 0 0.33 +11 0 +11 6 0.33 +11 6 0.1853 ‐0.7322+9 2 0.197 +9 2 0.5212 ‐0.28300609 +9 11 0.197 +9 11 0.3397 ‐0.4689+7 0 0.124 +7 0 +7 18 0.124 +7 18 0.5559 ‐0.2550+5 3 0.082 +5 3 0.7818 ‐0.10691483 +5 27 0.082 +5 27 0.8338 ‐0.0789+3 1 0.039 +3 1 0.2606 ‐0.58403609 +3 12 0.039 +3 12 0.3706 ‐0.4311‐3 1 0.017 ‐3 1 0.2606 ‐0.58403609 ‐3 2 0.017 ‐3 2 0.0618 ‐1.2093

9 Total 9 2.35 82 Total 82 2.53

Table 9.28: LD C SIZINGS

‐1.5

‐1

‐0.5

0

0.5

1

+4 +3 +2 +1 +.66 +11 +9 +7 +5 +3 ‐3 Log VKB

Log VK1

Log mVK

Total LDC Sample

‐1.6

‐1.4

‐1.2

‐1

‐0.8

‐0.6

‐0.4

‐0.2

0Sp

ecial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66+1

1 +9 +7 +5 +3 ‐3

Total LDC Sample

846 tonnesBulk Sample Bulk Sample 384.55 BCM

DTC 270D 150D Comb Weight St Adjusted St ST/BCM Log St/BCM+23 0 0 0 Special+21 3.435 11.12 14.555 +10+19 0 7.34 7.34 +9+17 1.47 5.695 7.165 +8 1 1 0.0026 ‐2.5849+15 1.155 10.78 11.935 +7+13 4.39 16.075 20.465 +6+12 1.19 7.15 8.34 +5 1 1 0.0026 ‐2.5849+11 6.36 15.34 21.7 +4+9 7.91 20.065 27.975 +3 1 1 0.0026 ‐2.5849+7 5.05 13.605 18.655 +2 4 4 0.0104 ‐1.9829+5 6.405 14.1 20.505 +1 16 16 0.0416 ‐1.3808+3 1.795 4.495 6.29 +.66 14 14 0.0364 ‐1.4388‐3 Total Cts 0.145 46.155 46.3 +11 109 109 0.2835 ‐0.5475

Total 211.23 39.305 171.92 211.225 +9 141 141 0.3667 ‐0.4357+7 162 162 0.4213 ‐0.3754+5 307 307 0.7983 ‐0.0978

Bulk Sample Bulk Sample +3 194 194 0.5045 ‐0.2971DTC 270D 150D Comb -3 4038 80 10.5007 1.0212+23 0 0 0 Total 4988 1030 12.97+21 1 4 5+19 0 3 3 This is an erroneous result+17 2 4 6+15 2 9 11+13 7 24 31+12 4 15 19+11 23 48 71+9 39 102 141+7 50 112 162+5 102 205 307+3 51 143 194‐3 Total Count 8 4030 4038

Total 4,988.00 289 4699 4988

Combined

Table 9.29: PalSac Bulk Sample RIO 2002

*HPGR Crushed 1,619 wet tonnes heavily contaminated480 BCM* *Estimated

mss Weight Carats st st/BCM Log st/BCM ct/BCM15.50 Special10.30 +109.30 +98.30 +87.30 +7 7.00 1 0.00208 ‐2.68 0.0156.30 +65.30 +54.30 +4 4.48 1 0.0021 ‐2.68 0.0093.30 +3 3.46 1 0.0021 ‐2.68 0.0072.30 +2 11.50 5 0.0104 ‐1.98 0.0241.30 +1 25.32 21 0.0438 ‐1.36 0.0570.77 +.66 13.86 18 0.038 ‐1.43 0.0290.357 +11 48.51 136 0.283 ‐0.55 0.1010.196 +9 36.59 187 0.390 ‐0.41 0.0760.120 +7 24.15 202 0.421 ‐0.38 0.0500.056 +5 23.16 412 0.858 ‐0.07 0.0480.026 +3 14.64 574 1.196 0.08 0.0310.013 -3 5.58 446 0.929 ‐0.03 0.012

Total 218.27 2004 4.18 0.46

2009 Palomides cleanup*

Table 9.30: 2009 Palomides Pit Cleanup

* No Crush **Adjusted * No Crush **Adjusted * No Crush110,000 BCM** 114,000 BCM** 410000 BCM

Weight cts Stones St/BCM Log st/BCM Cts/BCM Weight cts Stones St/BCM Log st/BCM Cts/BCM Weight mss cts st st/BCM Log st/BCM ct/BCMSpecial 449.07 29 0.00026 ‐3.58 0.004 Special 684.46 44 0.00039 ‐3.41 0.006 Spec 15.50 2431.17 157 0.00038 ‐3.42 0.006+10 113.65 11 0.00010 ‐4.00 0.001 +10 103.18 10 0.00009 ‐4.06 0.001 10cts 10.30 361.35 35 0.00009 ‐4.07 0.001+9 165.52 18 0.00016 ‐3.79 0.002 +9 112.34 12 0.00011 ‐3.97 0.001 9cts 9.30 508.89 55 0.00013 ‐3.87 0.001+8 174.51 21 0.00019 ‐3.72 0.002 +8 171.60 21 0.00018 ‐3.74 0.002 8cts 8.30 701.30 84 0.00021 ‐3.69 0.002+7 291.46 40 0.00036 ‐3.44 0.003 +7 167.78 23 0.00020 ‐3.70 0.001 7cts 7.30 835.26 114 0.00028 ‐3.55 0.002+6 330.29 52 0.0005 ‐3.32 0.003 +6 210.64 33 0.0003 ‐3.53 0.002 6cts 6.30 1059.73 168 0.00041 ‐3.39 0.003+5 578.22 109 0.0010 ‐3.00 0.005 +5 498.03 94 0.0008 ‐3.08 0.004 5cts 5.30 2102.80 397 0.00097 ‐3.01 0.005+4 737.37 171 0.0016 ‐2.81 0.007 +4 666.93 155 0.0014 ‐2.87 0.006 4cts 4.30 2689.74 626 0.0015 ‐2.82 0.007+3 1449.50 439 0.0040 ‐2.40 0.013 +3 1275.13 386 0.0034 ‐2.47 0.011 3cts 3.30 5019.51 1521 0.0037 ‐2.43 0.012+2 2640.84 1148 0.0104 ‐1.98 0.024 +2 2663.13 1158 0.010 ‐1.99 0.023 2cts 2.30 9769.51 4248 0.0104 ‐1.98 0.024+1 5767.62 4437 0.0403 ‐1.39 0.052 +1 6109.24 4699 0.041 ‐1.38 0.054 1cts 1.20 21397.14 17831 0.0435 ‐1.36 0.052+.66 3259.26 4233 0.038 ‐1.41 0.030 +.66 3239.10 4207 0.037 ‐1.43 0.028 0.66cts 0.76 11650.02 15329 0.037 ‐1.43 0.028+11 10388.27 31290 0.284 ‐0.55 0.09 +11 10826.58 33210 0.291 ‐0.54 0.09 +11 0.332 38667.23 116307 0.284 ‐0.55 0.094+9 8217.09 41420 0.377 ‐0.42 0.07 +9 8542.14 44567 0.391 ‐0.41 0.07 +9 0.195 31206.26 160249 0.391 ‐0.41 0.076+7 5338.14 44104 0.40 ‐0.40 0.05 +7 5505.78 45036 0.395 ‐0.40 0.05 +7 0.119 20464.68 171543 0.418 ‐0.38 0.050+5 7068.21 100867 0.92 ‐0.04 0.06 +5 7404.01 105950 0.929 ‐0.03 0.06 +5 0.070 28404.81 406966 0.993 0.00 0.069+3 1448.94 38933 0.35 ‐0.45 0.013 +3 1534.66 41794 0.367 ‐0.44 0.013 +3 0.038 6425.38 167123 0.408 ‐0.39 0.016‐3 129.63 7623 0.07 ‐1.16 0.001 -3 167.82 9871 0.087 ‐1.06 0.001 ‐3 0.017 715.39 42080 0.103 ‐0.99 0.002

Total 48547.59 274945 2.50 0.44 Total 49882.55 291272 2.56 0.44 184,410 1,104,834 2.69 0.45

* No Crush * No Crush *adjusted *HPGR Crushed33.85 BCM 385 BCM* 480 BCM

mss Weight St St/BCM Log cts/BCM mss Weight Adj St St/BCM Log st/BCM cts/BCM mss Weight st st/BCM Log st/BCM ct/BCM mss Weight st/BCM Log st/BCM cts/BCM

15.50 Special 15.50 Special 15.50 Special 15.50 Special 0.00038 ‐3.4173 0.005910.30 +10 10.30 +10 10.30 +10 10.30 +10 0.00009 ‐4.0677 0.00099.30 +9 9.30 +9 9.30 +9 9.30 +9 0.00013 ‐3.8746 0.00128.30 +8 8.30 +8 1 0.0026 ‐2.58495282 0.0216 8.30 +8 8.30 +8 0.00021 ‐3.6860 0.00177.30 +7 7.30 +7 7.30 +7 1 0.00208 ‐2.68 0.015 7.30 +7 0.00028 ‐3.5543 0.00206.30 +6 6.30 +6 6.30 +6 6.30 +6 0.00041 ‐3.3869 0.00265.30 +5 5.30 +5 1 0.0026 ‐2.58495282 0.0138 5.30 +5 5.30 +5 0.00097 ‐3.0143 0.00514.30 +4 4.30 +4 4.30 +4 1 0.0021 ‐2.68 0.009 4.30 +4 0.00153 ‐2.8165 0.00663.30 +3 1 0.0295 ‐1.5296 0.0975 3.30 +3 1 0.0026 ‐2.58495282 3.30 +3 1 0.0021 ‐2.68 0.007 3.30 +3 0.00371 ‐2.4306 0.01222.30 +2 1 0.0295 ‐1.5296 0.0679 2.30 +2 4 0.0104 ‐1.98289282 0.0239 2.30 +2 5 0.0104 ‐1.98 0.024 2.30 +2 0.01036 ‐1.9846 0.02381.30 +1 2 0.0591 ‐1.2286 0.0768 1.30 +1 16 0.0416 ‐1.38083283 0.0541 1.30 +1 21 0.0438 ‐1.36 0.057 1.30 +1 0.04349 ‐1.3616 0.05650.77 +.66 2 0.0591 ‐1.2286 0.0455 0.77 +.66 14 0.036 ‐1.43882478 0.0280 0.77 +.66 18 0.038 ‐1.43 0.029 0.77 +.66 0.0364 ‐1.4388 0.02800.33 +11 6 0.177 ‐0.7515 0.0585 0.33 +11 109 0.283 ‐0.54752632 0.0935 0.38 +11 136 0.283 ‐0.55 0.109 0.38 +11 0.283 ‐0.5475 0.10860.198 +9 11 0.325 ‐0.4882 0.0645 0.198 +9 141 0.367 ‐0.4357337 0.0727 0.213 +9 187 0.390 ‐0.41 0.083 0.192 +9 0.367 ‐0.4357 0.07040.121 +7 18 0.532 ‐0.2743 0.0644 0.121 +7 162 0.421 ‐0.3754378 0.0510 0.120 +7 202 0.421 ‐0.38 0.051 0.122 +7 0.421 ‐0.3759 0.05150.070 +5 27 0.798 ‐0.0983 0.0559 0.070 +5 307 0.798 ‐0.09781444 0.0559 0.056 +5 412 1.631 0.21 0.092 0.070 +5 1.631 0.2124 0.11420.037 +3 12 0.354 ‐0.4504 0.0132 0.037 +3 194 0.504 ‐0.29715109 0.0188 0.033 +3 574 4.066 0.61 0.133 0.037 +3 4.066 0.6091 0.14990.017 -3 2 0.059 ‐1.2286 0.0010 0.017 -3 80 0.208 ‐0.68186283 0.0035 0.017 -3 446 4.367 0.64 0.072 0.017 -3 4.367 0.6402 0.0742

Total 82 2.42 0.55 Total 1030 2.68 0.44 Total 2004 11.26 0.68 Total 11.23 0.72

Cum Cum % Cum Cum % Cum Cum % Cum Cum %Weight cts/BCM ct/BCM ct/BCM Weight cts/BCM ct/BCM ct/BCM Weight cts/BCM ct/BCM ct/BCM Weight cts/BCM ct/BCM ct/BCMSpec 0.0059 0.006 0.83% Spec 0.0059 0.006 1.32% Spec 0.0049 0.005 1.37% Spec 0.0030 0.003 0.93%10cts 0.0009 0.0068 0.95% 10cts 0.0009 0.0068 1.51% 10cts 0.0007 0.0056 1.58% 10cts 0.0008 0.0038 1.16%9cts 0.0012 0.0081 1.13% 9cts 0.0012 0.0081 1.79% 9cts 0.0008 0.0064 1.80% 9cts 0.0011 0.0049 1.50%8cts 0.0017 0.0098 1.36% 8cts 0.0017 0.0098 2.17% 8cts 0.0012 0.0076 2.15% 8cts 0.0012 0.0061 1.86%7cts 0.0020 0.0118 1.65% 7cts 0.0020 0.0118 2.62% 7cts 0.0012 0.0088 2.48% 7cts 0.0020 0.0080 2.46%6cts 0.0026 0.0144 2.01% 6cts 0.0026 0.0144 3.20% 6cts 0.0015 0.0103 2.91% 6cts 0.0022 0.0103 3.14%5cts 0.0051 0.0195 2.73% 5cts 0.0051 0.0195 4.34% 5cts 0.0035 0.0138 3.91% 5cts 0.0039 0.0142 4.33%4cts 0.0066 0.0261 3.64% 4cts 0.0066 0.0261 5.80% 4cts 0.0047 0.0185 5.24% 4cts 0.0050 0.0191 5.85%3cts 0.0122 0.0383 5.36% 3cts 0.0122 0.0383 8.52% 3cts 0.0090 0.0276 7.80% 3cts 0.0098 0.0289 8.84%2cts 0.0238 0.0621 8.69% 2cts 0.0238 0.0621 13.82% 2cts 0.0189 0.0465 13.14% 2cts 0.0178 0.0467 14.28%1cts 0.0565 0.1187 16.59% 1cts 0.0522 0.1143 25.42% 1cts 0.0433 0.0898 25.38% 1cts 0.0389 0.0856 26.16%

0.66cts 0.0280 0.1467 20.51% 0.66cts 0.0284 0.1427 31.74% 0.66cts 0.0230 0.1128 31.88% 0.66cts 0.0220 0.1075 32.87%+11 0.1086 0.2553 35.68% +11 0.0943 0.2371 52.71% +11 0.0768 0.1896 53.58% +11 0.0700 0.1775 54.27%+9 0.0704 0.3257 45.52% +9 0.0761 0.3132 69.63% +9 0.0606 0.2501 70.71% +9 0.0554 0.2329 71.19%+7 0.0515 0.3771 52.71% +7 0.0499 0.3631 80.72% +7 0.0390 0.2892 81.74% +7 0.0360 0.2689 82.19%+5 0.1142 0.4913 68.67% +5 0.0693 0.4324 96.13% +5 0.0525 0.3417 96.59% +5 0.0476 0.3165 96.75%+3 0.1499 0.6412 89.62% +3 0.0157 0.4480 99.61% +3 0.0109 0.3526 99.66% +3 0.0098 0.3263 99.73%-3 0.0742 0.7155 100.00% -3 0.0017 0.4498 100.00% -3 0.0012 0.3538 100.00% -3 0.0009 0.3271 100.00%

0.72 0.45 0.35 0.33

Sacramore*

RIO BULK SAMPLE* MODEL2009 Palomides cleanup*

Table 9.31: PALSAC Grade Model

NADL Resource Model PalSac NADL Production Model PalSac Historic Mine Palomides Historic Mine Sacramore

Merlin Average Prod ‐ non micaceous pipes

Total LDC SAMPLE*

Palomides*

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

Spec

ial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66+1

1 +9 +7 +5 +3 ‐3

Log Sacramore RIO

Log Palomides RIO

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

Spec10

cts 9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66c

ts +11 +9 +7 +5 +3 ‐3

Merlin Average ROM

LDC Sample

Palomides Bulk Sample

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00Sp

ecial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66

+11 +9 +7 +5 +3 ‐3

Sacramore

Palomides

Merlin Average

‐5.00

‐4.00

‐3.00

‐2.00

‐1.00

0.00

1.00

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

Merlin Average

Palomides Cleanup

1‐Mar‐00 16‐Jul‐99 1‐Mar‐00 21‐Oct‐99 1‐Mar‐00 29‐Mar‐00 29‐Mar‐00 19‐Apr‐00 3‐May‐00 7‐Jun‐00 28‐Jun‐00 4‐Jul‐00 19‐Jul‐00 16‐Nov‐01 21‐Jul‐00 22‐Jul‐00 21‐Jul‐00 16‐Nov‐01 28-Oct-02 29-Oct-02 10-Dec-02DTCSieve Size Total Carats 16Nov‐16Nov LNO1660 LNO1635 LNO1600 LNO1590 LNO1560 LNO1530 LNO1500 LNO1480 LNO1450 LNO1430 LNO1400 LN01385 LN01350 LN01325 LN01300 LN01280 LN01250 LN01230 LN01200 LN01150 LN01050

+23 210.21 78.08 65.125 8.785 20.345 37.115 12.95 23.090 7.7 35.1+21 846.44 205.19 75.575 132.33 85.62 143.435 129.615 92.700 18.06 169.1+19 1,667.26 654.43 471.5 111.26 123.06 257.215 182.93 294.590 56.8 169.9+17 749.54 202.50 71.745 48.445 62.56 125.16 130.755 147.440 37.83 125.6+15 610.46 121.85 62.69 56.51 43.79 107.505 59.16 147.900 30.3 102.6+13 1,739.27 457.73 203.845 150.36 122.14 249.045 253.88 378.700 92.7 288.6+12 9,802.95 283.16 603.76 787.015 33.235 635.925 614.71 579.62 2333.99 841.635 184.71 223.185 74.58 846.375 799.565 134.825 109.01 104.905 197.37 148.335 288.600 68.3 193.3+11 5,643.29 546.28 184.74 243.455 14.095 228.505 245.12 284.605 923.26 314.44 224.25 84.35 10.815 344.265 352.44 254.27 200.34 163.14 331.895 292.005 474.200 119.9 353.2+9 7,219.38 598.67 220.025 326.94 14.595 224.45 295.915 372.46 1271.41 399.625 309.46 473.625 18.17 365.02 564.985 283.025 235.155 202.675 367.6 315.64 439.800 122.4 396.4+7 4,644.55 444.59 132.18 185.34 8.515 107.51 180.91 250.56 822.665 233.94 225.935 202.275 26.015 272.85 290.445 223.745 166.965 146.79 282.365 220.84 321.900 88.1 254.7+5 5,596.76 477.98 123.11 201.74 7.045 75.025 179.06 225.33 825.555 373.55 338.66 390.125 39.09 406.61 602.33 258.885 200.16 165.93 264.165 219.09 348.800 98 254.5+3 832.24 73.52 7.205 13.185 0.195 1.455 21.175 13.085 115.205 85.055 84.98 83.04 14.48 82.51 74.855 45.255 31.51 23.745 35.135 28.265 18.600 17.9 35.4‐3 69.22 5.15 0.955 0.5 0 0 0 0 0 11.66 2.245 10.525 1.65 9.76 9.235 3.195 1.665 0.685 3.885 1.955 5.800 2.4 3.1

Total 39,631.53 4,149.10 1271.975 1758.175 77.68 1272.87 1536.89 1725.66 6292.085 2259.905 1370.24 1467.125 184.8 2327.39 2693.855 2153.68 1452.495 1265.385 2401.89 1995.42 2982.12 760.39 2381.5

1‐Mar‐00 16‐Jul‐99 1‐Mar‐00 21‐Oct‐99 1‐Mar‐00 29‐Mar‐00 29‐Mar‐00 19‐Apr‐00 3‐May‐00 7‐Jun‐00 28‐Jun‐00 4‐Jul‐00 19‐Jul‐00 16‐Nov‐01 21‐Jul‐00 22‐Jul‐00 21‐Jul‐00 16‐Nov‐01 28-Oct-02 29-Oct-02 10-Dec-02DTCSieve Size Total Stones 16Nov‐16Nov LNO1660 LNO1635 LNO1600 LNO1590 LNO1560 LNO1530 LNO1500 LNO1480 LNO1450 LNO1430 LNO1400 LN01385 LN01350 LN01325 LN01300 LN01280 LN01250 LN01230 LN01200 LN01150 LN01050

+23 28 10 8 2 3 5 2 4 1 3+21 187 51 19 28 19 29 32 20 5 35+19 602 152 74 46 55 111 78 133 26 79+17 596 145 50 31 43 91 95 100 25 161+15 547 103 54 46 42 100 49 134 33 89+13 2,233 573 245 178 151 349 328 492 123 367+12 9,714 540 556 737 35 596 749 659 625 900 304 345 46 856 903 246 195 189 397 294 566 139 377+11 14,692 1,583 549 702 41 659 799 871 638 937 750 355 35 1017 1061 699 517 459 985 884 1356 350 1028+9 31,153 2,945 1112 1318 73 900 1484 1824 1382 2058 1699 2096 107 2105 3061 1347 1081 993 1807 1598 2155 954 1999+7 15,264 3,757 5 1319 64 0 0 0 0 0 0 0 0 0 0 1760 1325 1219 2213 1997 2480 703 2179+5 25,957 6,903 3 24 0 0 0 0 0 0 0 0 0 0 0 3755 2878 2517 3369 3148 4973 1392 3898+3 7,622 2,052 0 19 0 0 0 0 0 0 0 0 0 0 0 1257 878 675 875 795 1552 497 1074‐3 1,334 303 0 0 0 0 0 0 0 0 0 0 0 0 0 188 98 40 229 115 341 141 182

Total 109,929 19,116.94 2225 4119 213 2155 3032 3354 2645 3895 2753 2796 188 3978 5025 9702 7303 6405 10560 9415 14306 4389 11471

Flitch BCM received sized sold Cts/BCM St/BCM Export Sale Number Valuation SalesLNO1996 2,166.00 1,272.12 1,272.12 0.59 ADS#1 ‐ May 99 5,783.13 DTC Sieve 16Nov‐16Nov Cts/BCM 16Nov‐16Nov St/BCM MSS MSSLNO1730 8,955.00 5,783.13 5,783.13 0.65 ADS#2 ‐ 7 June 1999 3,825.82 +23 78.08 0.0085 10 0.0011 7.81 7.22LNO1700 5,966.00 3,271.65 3,271.65 0.55 ADS#3 ‐ 14 July 1999 4,559.03 +21 205.19 0.0224 51 0.0056 4.02 4.46LNO1670 6,082.00 3,405.89 1,271.98 3,222.76 0.53 0.37 ADS#4 ‐ Sept / Oct 1999 4,666.99 4,814.24 +19 654.43 0.0715 152 0.0166 4.31 3.15LNO1635 6,654.00 3,775.44 1,758.18 3,795.75 0.00 0.619 ADS#5 ‐ Nov / Dec 1999 2,543.92 2,727.34 +17 202.50 0.0221 145 0.0158 1.40 1.42LNO1600 6,125.00 3,111.64 77.68 3,091.33 0.50 0.03 ADS#6 ‐ 28 Feb 2000 +15 121.85 0.0133 103 0.0113 1.18 1.13LNO1590 3,367.00 1,272.82 1,272.87 1,272.82 0.38 0.64 ADS#7 ‐ 8 May 2000 +13 457.73 0.0500 573 0.0626 0.80 0.78LNO1560 4,426.00 1,546.04 1,536.89 1,545.94 0.35 0.69 ADS#8 ‐ 12 July 2000 8,087.62 8,088.36 +12 283.16 0.0309 540 0.0590 0.52 0.53LNO1530 4,026.00 1,712.07 1,725.66 1,712.07 0.43 0.83 ADS#9 ‐ 23 Aug 2000 2,907.20 2,908.07 +11 546.28 0.0597 1583 0.1730 0.35 0.35LNO1500 3,423.00 1,349.74 6,292.09 1,349.74 0.00 0.77 ADS#10 ‐ 2 Oct 2000 3,909.17 3,910.18 +9 598.67 0.0654 2945 0.3219 0.203 0.206LNO1480 4,205.00 2,257.38 2,259.91 2,257.36 0.54 0.93 ADS#11 ‐ 29 Nov 2000 +7 444.59 0.0486 3757 0.4106 0.118 0.122LNO1450 4,818.00 1,370.31 1,370.24 1,370.31 0.28 0.57 ADS#12 ‐ 2001 +5 477.98 0.0522 6903 0.7544 0.069 0.071LNO1430 3,356.00 1,467.15 1,467.13 1,467.15 0.44 0.83 ADS#13 ‐ 2001 +3 73.52 0.0080 2052 0.2243 0.036 0.037LNO1400 5,335.00 184.06 184.80 184.06 0.03 0.04 ADS#14 ‐ 2001 ‐3 5.15 0.0006 303 0.0331 0.017 0.017LNO1385 4,221.00 2,327.46 2,327.39 2,327.46 0.55 0.94 ADS#15 ‐ 2001 4,523.34 4,524.16 Total 4149.10 0.45 19117 2.09 0.21LNO1350 6,622.00 2,692.42 2,693.86 2,692.42 0.41 0.76 ADS#16 ‐ 2002 4,330.84 4,332.51LNO1325 4,656.00 2,153.71 2,153.68 1,855.75 0.40 2.08 ADS#17 ‐ 2002 99.51LNO1300 4,952.00 1,452.59 1,452.50 1,440.42 0.29 1.47 ADS#18 ‐ 2002LNO1280 4,118.00 1,263.71 1,265.39 1,263.71 0.31 1.56 ADS#19 ‐ 2003 21,507.88LNO1250 6,369.00 2,400.93 2,401.89 2,400.93 0.38 1.66 30,969.08 67,080.23LNO1230 4,494.00 1,995.37 1,995.42 1,995.37 0.44 2.10LNO1200 3,017.83 2,982.12 3,017.83LNO1150 759.38 760.39 759.38LNO1100 5,318.71 1,836.17LNO1050 1,371.00 2,381.50 3,752.40LNO1000 5,060.40 5,060.40LNO950 2,445.10 2,445.10LNO850 4,099.80 4,099.80

104,336.00 68,137.85 39,631.53 54,938.039,150.00 4,149.08 9,268.87 8,956.18 0.98

Stones


STONES FLITCH

Table 9.32: LAUNFAL Sorthouse Sizing Record


CaratsCarats

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 144.32 0.0059 20 0.0008 ‐3.0897 8 0.0017 ‐2.7649 2 0.0004 ‐3.3938 3 0.0007 ‐3.1376 5 0.0008 ‐3.1051 2 0.0004 ‐3.3516 7.22+21 566.575 0.0230 127 0.0052 ‐2.2869 19 0.0041 ‐2.3893 28 0.0057 ‐2.2476 19 0.0046 ‐2.3359 29 0.0046 ‐2.3417 32 0.0071 ‐2.1475 4.46+19 1145.965 0.0466 364 0.0148 ‐1.8296 74 0.0159 ‐1.7988 46 0.0093 ‐2.0320 55 0.0134 ‐1.8743 111 0.0174 ‐1.7587 78 0.0174 ‐1.7605 3.15+17 438.665 0.0178 310 0.0126 ‐1.8994 50 0.0107 ‐1.9690 31 0.0063 ‐2.2034 43 0.0104 ‐1.9812 91 0.0143 ‐1.8450 95 0.0211 ‐1.6749 1.42+15 329.655 0.0134 291 0.0118 ‐1.9268 54 0.0116 ‐1.9356 46 0.0093 ‐2.0320 42 0.0102 ‐1.9914 100 0.0157 ‐1.8041 49 0.0109 ‐1.9624 1.13+13 979.27 0.0398 1,251 0.0509 ‐1.2935 245 0.0526 ‐1.2788 178 0.0359 ‐1.4444 151 0.0367 ‐1.4357 349 0.0548 ‐1.2612 328 0.0730 ‐1.1368 0.78+12 694.445 0.0282 1,321 0.0537 ‐1.2698 246 0.0528 ‐1.2771 195 0.0394 ‐1.4047 189 0.0459 ‐1.3382 397 0.0623 ‐1.2053 294 0.0654 ‐1.1843 0.53+11 1241.65 0.0505 3,544 0.1441 ‐0.8412 699 0.1501 ‐0.8235 517 0.1044 ‐0.9813 459 0.1115 ‐0.9529 985 0.1547 ‐0.8106 884 0.1967 ‐0.7062 0.350+9 1404.095 0.0571 6,826 0.2776 ‐0.5566 1347 0.2893 ‐0.5386 1081 0.2183 ‐0.6610 993 0.2411 ‐0.6177 1807 0.2837 ‐0.5471 1598 0.3556 ‐0.4491 0.206+7 1040.705 0.0423 8,514 0.3463 ‐0.4606 1760 0.3780 ‐0.4225 1325 0.2676 ‐0.5726 1219 0.2960 ‐0.5287 2213 0.3475 ‐0.4591 1997 0.4444 ‐0.3523 0.122+5 1108.23 0.0451 15,667 0.6372 ‐0.1958 3755 0.8065 ‐0.0934 2878 0.5812 ‐0.2357 2517 0.6112 ‐0.2138 3369 0.5290 ‐0.2766 3148 0.7005 ‐0.1546 0.071+3 163.91 0.0067 4,480 0.1822 ‐0.7395 1257 0.2700 ‐0.5687 878 0.1773 ‐0.7513 675 0.1639 ‐0.7854 875 0.1374 ‐0.8621 795 0.1769 ‐0.7523 0.037‐3 11.385 0.0005 670 0.0272 ‐1.5647 188 0.0404 ‐1.3939 98 0.0198 ‐1.7036 40 0.0097 ‐2.0126 229 0.0360 ‐1.4442 115 0.0256 ‐1.5919 0.017

Total 9268.87 0.38 43,385 1.76 9702 2.1 7303 1.5 6405 1.6 10560 1.7 9415 2.1 0.21BCM

Selected Flitch*

0.444


LN01325* LN01250*

0.3771452.495 1265.385 2401.89

0.3779,268.87 1,995.42

4952 4118 6369 4,49424,589.00

0.293 0.307

LN01230*

4656

2153.680.463

LN01300* LN01280*

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

LNO1325

LNO1300

LNO1280

LNO1250

LNO1230

Month Sep‐99 Nov‐99 Jun‐00 Aug‐00 Sep‐00 Dec‐01 Jan‐02 Total 82000 BCM* *Estimated

Size cts cts cts cts cts cts cts cts mss Weight cts Stones st/BCM Cts/BCM LogSpecial 26.75 16.38 13.39 50.68 23.63 49.57 12.93 193.33 14.00 Special 193.33 14 0.0002 0.0024 ‐3.77+10cts 0.00 0.00 0.00 0.00 10.70 0.00 10.60 21.30 10.30 +10 21.30 2 0.0000 0.0003 ‐4.60+9cts 9.13 18.46 0.00 0.00 18.61 9.34 8.90 64.44 9.30 +9 64.44 7 0.0001 0.0008 ‐4.07+8cts 24.67 0.00 8.68 0.00 33.33 8.12 24.27 99.07 8.30 +8 99.07 12 0.0001 0.0012 ‐3.84+7cts 28.51 7.51 14.65 7.60 29.41 28.48 28.97 145.13 7.30 +7 145.13 20 0.0002 0.0018 ‐3.62+6cts 36.87 24.55 30.54 0.00 44.78 49.02 50.64 236.40 6.30 +6 236.40 38 0.0005 0.0029 ‐3.34+5cts 94.26 58.85 48.14 10.60 36.36 82.51 63.23 393.95 5.30 +5 393.95 74 0.0009 0.0048 ‐3.04+4cts 89.24 42.61 72.61 7.72 25.98 107.49 108.74 454.39 4.30 +4 454.39 106 0.0013 0.0055 ‐2.89+3cts 204.96 125.73 130.36 20.18 83.74 183.09 177.33 925.39 3.30 +3 925.39 280 0.0034 0.0113 ‐2.478gr 312.92 190.85 316.25 54.28 154.27 275.60 291.44 1595.61 2.30 +2 1595.61 694 0.0085 0.0195 ‐2.076gr 216.87 126.35 246.96 32.09 121.51 177.43 177.19 1098.40 1.30 +1 3384.37 2603 0.0317 0.0413 ‐1.505gr 120.06 84.16 179.25 27.09 67.60 124.69 125.14 727.99 0.77 +.66 1899.01 2466 0.0301 0.0232 ‐1.524gr 312.73 139.43 356.70 69.13 173.97 260.66 245.36 1557.98 0.350 +11 6681.74 19071 0.2326 0.0815 ‐0.633gr 317.36 176.86 512.93 112.30 203.75 280.17 295.64 1899.01 0.206 +9 5593.50 27193 0.3316 0.0682 ‐0.48+11 1054.56 602.37 1865.27 602.23 760.98 884.59 911.74 6681.74 0.122 +7 3646.60 29833 0.3638 0.0445 ‐0.44+9 852.63 432.01 1686.08 567.43 636.20 718.63 700.52 5593.50 0.071 +5 4530.90 64053 0.7811 0.0553 ‐0.11+7 472.52 279.03 1071.04 436.83 470.43 472.84 443.91 3646.60 0.037 +3 992.98 27140 0.3310 0.0121 ‐0.48+5 461.47 207.55 1240.78 654.66 729.72 675.05 561.67 4530.90 0.017 ‐3 110.97 6531 0.0796 0.0014 ‐1.10

+3 30.18 10.26 253.29 228.16 256.21 128.81 86.07 992.98 Total 30969.08 180137 2.20 0.38

‐3 1.30 0.96 40.70 26.22 27.99 7.25 6.55 110.97Total 4666.99 2543.92 8087.62 2907.20 3909.17 4523.34 4330.84 30969.08

Table 9.34: Production 1999/2002

Log

‐5.00

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

Spec

ial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66+1

1 +9 +7 +5 +3 ‐3

Log

*No Crush *HPGR Crush82000 BCM 560 BCM

mss Weight Carats Stones st/BCM Cts/BCM Log st/BCM mss Weight st st/BCM Log st/BCM ct/BCM mss Weight st/BCM Log st/BCM cts/BCM

15.50 Special 193.33 12 0.0002 0.0024 ‐3.82 15.50 Special 15.50 Special 0.00015 ‐3.8178 0.002410.30 +10 21.30 2 0.0000 0.0003 ‐4.60 10.30 +10 10.30 +10 0.00003 ‐4.5983 0.00039.30 +9 64.44 7 0.0001 0.0008 ‐4.07 9.30 +9 9.30 +9 0.00008 ‐4.0731 0.00088.30 +8 99.07 12 0.0001 0.0012 ‐3.84 8.30 +8 8.30 +8 0.00015 ‐3.8369 0.00127.30 +7 145.13 20 0.0002 0.0018 ‐3.62 7.30 +7 1 0.00179 ‐2.75 0.013 7.30 +7 0.00024 ‐3.6154 0.00186.30 +6 236.40 38 0.0005 0.0029 ‐3.34 6.30 +6 6.30 +6 0.00046 ‐3.3395 0.00295.30 +5 393.95 74 0.0009 0.0048 ‐3.04 5.30 +5 5.30 +5 0.00091 ‐3.0426 0.00484.30 +4 454.39 106 0.0013 0.0055 ‐2.89 4.30 +4 1 0.0018 ‐2.75 0.008 4.30 +4 0.00129 ‐2.8899 0.00553.30 +3 925.39 280 0.0034 0.0113 ‐2.47 3.30 +3 1 0.0018 ‐2.75 0.006 3.30 +3 0.00342 ‐2.4660 0.01132.30 +2 1595.61 694 0.0085 0.0195 ‐2.07 2.30 +2 5 0.0089 ‐2.05 0.021 2.30 +2 0.00846 ‐2.0726 0.01951.30 +1 3384.37 2603 0.0317 0.0413 ‐1.50 1.30 +1 21 0.0375 ‐1.43 0.049 1.30 +1 0.03175 ‐1.4983 0.04130.77 +.66 1899.01 2466 0.030 0.0232 ‐1.52 0.77 +.66 18 0.032 ‐1.49 0.025 0.77 +.66 0.03008 ‐1.5218 0.02320.35 +11 6681.74 19071 0.233 0.0815 ‐0.63 0.38 +11 136 0.243 ‐0.61 0.093 0.350 +11 0.23258 ‐0.6334 0.08150.21 +9 5593.50 27193 0.332 0.0682 ‐0.48 0.213 +9 187 0.334 ‐0.48 0.071 0.206 +9 0.33162 ‐0.4794 0.06820.12 +7 3646.60 29833 0.364 0.0445 ‐0.44 0.120 +7 202 0.361 ‐0.44 0.043 0.122 +7 0.364 ‐0.4391 0.04450.07 +5 4530.90 64053 0.781 0.0553 ‐0.11 0.056 +5 412 1.398 0.15 0.079 0.071 +5 1.398 0.1455 0.09890.04 +3 992.98 27140 0.331 0.0121 ‐0.48 0.033 +3 574 3.075 0.49 0.101 0.037 +3 3.075 0.4878 0.11250.017 ‐3 110.97 6531 0.080 0.0014 ‐1.10 0.017 -3 446 3.664 0.56 0.061 0.017 -3 3.664 0.5639 0.0623

Total 30969.08 180135 2.2 0.38 Total 2004 9.16 0.57 Total 9.14 0.58


0.66cts 0.0232 0.1148 19.70% 0.66cts 0.0232 0.1148 30.39% 0.66cts 0.0232 0.1148 30.39%+11 0.0815 0.1963 33.69% +11 0.0815 0.1963 51.97% +11 0.0815 0.1963 51.97%+9 0.0682 0.2645 45.40% +9 0.0682 0.2645 70.03% +9 0.0682 0.2645 70.03%+7 0.0445 0.3090 53.03% +7 0.0445 0.3090 81.80% +7 0.0445 0.3090 81.80%+5 0.0989 0.4078 70.00% +5 0.0553 0.3642 96.44% +5 0.0553 0.3642 96.44%+3 0.1125 0.5203 89.31% +3 0.0121 0.3763 99.64% +3 0.0121 0.3763 99.64%‐3 0.0623 0.5826 100.00% ‐3 0.0014 0.3777 100.00% ‐3 0.0014 0.3777 100.00%

0.58 0.38 0.38


Table 9.35: Grade Model

2009 Palomides cleanup*RIO ROM Production* Resource Model

‐5.00

‐4.00

‐3.00

‐2.00

‐1.00

0.00

1.00Sp

ecial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66

+11 +9 +7 +5 +3 ‐3

RIO ROM

Model

‐5.00

‐4.00

‐3.00

‐2.00

‐1.00

0.00

1.00

Spec

ial +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 +.66

+11 +9 +7 +5 +3 ‐3

RIO Launfal ROM

Palomides Cleanup

28‐Aug‐02 28‐Aug‐02 19‐Sep‐00 15‐Aug‐01 16‐Aug‐02 17-Aug-02 28-Aug-02DTC Sieve Size Total Carats Selected* KY01640 KY01635* KY01600 KY01580* KY01560 KY01550* KY01530*

+23 495.73 339.44 92.820 63.475 38.48 185.720 115.235 +21 603.48 441.79 93.710 67.98 45.285 234.070 162.435 DTC Sieve Selected* Cts/BCM selected* St/BCM MSS+19 832.53 580.25 191.220 61.065 56.405 271.595 252.245 +23 339.44 0.0087 30 0.0008 11.31+17 522.48 409.16 86.165 27.16 86.695 180.015 142.445 +21 441.79 0.0114 106 0.0027 4.17+15 454.11 346.11 79.430 28.57 59.14 172.145 114.820 +19 580.25 0.0149 266 0.0068 2.18+13 1,105.48 836.98 189.630 78.87 126.455 411.490 299.035 +17 409.16 0.0105 565 0.0145 0.72+12 3,000.50 611.45 395.495 138.585 1493.715 119.385 361.255 302.695 189.370 +15 346.11 0.0089 297 0.0076 1.17+11 2,115.98 1,098.62 118.205 254.425 530.01 182.05 114.715 545.590 370.980 +13 836.98 0.0215 1,112 0.0286 0.75+9 2,813.55 1,284.43 117.760 317.555 672.345 229.52 421.455 611.945 442.965 +12 611.45 0.0157 1,201 0.0309 0.51+7 1,968.73 1,069.99 86.280 246.300 481.82 188.31 84.340 510.150 371.525 +11 1,098.62 0.0282 3,282 0.0843 0.33+5 2,734.02 1,482.63 115.990 316.690 789.24 235.455 29.470 719.245 527.930 +9 1,284.43 0.0330 7,001 0.1799 0.183+3 719.93 399.27 14.170 107.350 198.885 53.505 0.260 188.260 157.500 +7 1,069.99 0.0275 11,169 0.2870 0.096‐3 116.58 64.60 0.375 19.830 31.775 5.22 0.000 28.730 30.650 +5 1,482.63 0.0381 19,709 0.5065 0.075

Total 17,483.08 8,964.69 848.275 2133.710 4524.91 1425.905 1011.495 4361.650 3177.135 +3 399.27 0.0103 9,682 0.2488 0.041‐3 64.60 0.0017 3,800 0.0976 0.017

Total 8,964.69 0.23 58,220 1.50 0.1528‐Aug‐02 28‐Aug‐02 19‐Sep‐00 15‐Aug‐01 16‐Aug‐02 17-Aug-02 28-Aug-02

DTC Sieve Size Total Stones selected* KY01640 KY01635* KY01600 KY01580* KY01560 KY01550* KY01530*+23 44 30.00 8 6 3 18.00 9+21 139 106.00 19 14 15 58.00 33+19 371 266.00 77 28 27 132.00 107+17 643 565.00 58 20 65 404.00 96+15 388 297.00 64 27 55 148.00 94 Sale Sep‐99 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Total Selected RIO 38,915 BCM+13 1,465 1,112.00 247 106 187 549.00 376 Weight cts cts cts cts cts cts cts cts mss Weight carats stones Cts/BCM St/BCM+12 3,351 1,201.00 243 267 1279 258 361 583.00 360 Special 76.35 201.66 0.00 0.00 80.89 19.50 378 297.51 15.50 Spec 298 19 0.008 0.0005+11 6,384 3,282.00 354 739 1596 565 413 1643.00 1074 +10cts 20.39 30.99 0.00 0.00 0.00 10.79 62 62.17 10.30 10cts 62 6 0.002 0.0002+9 13,424 7,001.00 595 1615 3516 1198 697 3010.00 2793 +9cts 18.37 27.36 0.00 0.00 18.24 0.00 64 45.73 9.30 9cts 46 5 0.001 0.0001+7 17,850 11,169.00 605 2021 4055 1567 4279.00 5323 +8cts 16.70 33.26 0.00 0.00 24.93 0.00 75 49.96 8.30 8cts 50 6 0.001 0.0002+5 37,237 19,709.00 4765 12763 3459 10302.00 5948 +7cts 22.43 34.94 0.00 0.00 0.00 0.00 57 57.37 7.30 7cts 57 8 0.001 0.0002+3 16,323 9,682.00 1282 5359 1349 5382.00 2951 +6cts 5.91 51.39 0.00 0.00 6.55 0.00 64 57.30 6.30 6cts 57 9 0.001 0.0002‐3 6,858 3,800.00 22 1166 1869 307 0 1690 1803 +5cts 58.02 65.22 0.00 10.68 4.89 10.08 149 133.32 5.30 5cts 133 25 0.003 0.0006

Total 104,477 58,220.00 1819 12328.47 30638.12 9055.06 1471.00 28198.00 20966.94 +4cts 76.22 126.79 0.00 0.00 29.80 4.50 237 207.51 4.30 4cts 208 48 0.005 0.0012+3cts 98.41 119.45 0.00 3.59 53.79 12.65 288 230.51 3.30 3cts 231 70 0.006 0.00188gr 174.58 252.54 2.49 7.20 94.19 30.65 562 460.26 2.30 2cts 460 200 0.012 0.00516gr 106.87 187.44 1.73 0.00 44.45 31.45 372 327.49 1.20 1cts 997 831 0.026 0.02135gr 72.31 112.30 0.00 0.00 30.70 13.01 228 197.62 0.760 0.66cts 527 694 0.014 0.0178

Flitch BCM Mine Rec sized sold Cts/BCM 4gr 163.58 271.88 0.92 0.00 67.26 35.44 539 471.82 0.335 +11 1,613 4816 0.041 0.1238KYO1640 997.42 848.28 997.42 3gr 199.61 271.71 2.41 2.94 61.45 53.39 592 527.12 0.183 +9 1,440 7849 0.037 0.2017KYO1635* 9,392 1,451.67 2,133.71 1,451.61 0.23 +11 567.10 881.38 10.92 13.18 261.56 153.98 1,888 1613.38 0.096 +7 963 10050 0.025 0.2583KYO1600 9,085 1,828.77 4,524.91 6,489.66 0.50 +9 475.83 784.05 13.32 8.11 211.68 166.82 1,660 1440.02 0.075 +5 1,406 18691 0.036 0.4803KYO1580* 4,291 1,425.78 1,425.91 1,425.78 0.33 +7 298.15 525.71 9.97 2.75 147.65 128.95 1,113 962.78 0.041 +3 358 8689 0.009 0.2233KYO1560 5,285 731.55 1,011.50 731.55 0.19 +5 343.20 849.11 24.79 4.67 240.59 188.95 1,651 1406.05 0.017 ‐3 58 3408 0.001 0.0876KYO1550* 18,944 4,361.31 4,361.65 4,360.87 0.23 +3 31.59 272.76 11.60 1.94 67.04 42.36 427 358.31 8,964.2 55,423 0.230 1.42KYO1530* 15,680 3,177.21 3,177.14 3,177.21 0.20 ‐3 1.31 50.32 2.47 0.11 6.98 3.83 65 57.93KYO1500 1,730.60 Total 2826.93 5150.26 80.62 55.17 1452.64 906.35 10,472 8964.16

62,677.00 13,973.71 17,483.08 20,364.7038,915 8,964 8,965 8,964 0.23

Export Sale Number Valuation SalesADS#1 ‐ May 99ADS#2 ‐ 7 June 1999ADS#3 ‐ 14 July 1999ADS#4 ‐ Sept / Oct 1999 2,826.93 2,826.19ADS#5 ‐ Nov / Dec 1999ADS#6 ‐ 28 Feb 2000ADS#7 ‐ 8 May 2000ADS#8 ‐ 12 July 2000ADS#9 ‐ 23 Aug 2000ADS#10 ‐ 2 Oct 2000ADS#11 ‐ 29 Nov 2000 5,150.26 5,152.61ADS#12 ‐ 2001 80.62 80.73ADS#13 ‐ 2001 55.17 55.49ADS#14 ‐ 2001 1,452.64 1,256.82ADS#15 ‐ 2001 906.35 1,103.89ADS#16 ‐ 2002ADS#17 ‐ 2002ADS#18 ‐ 2002 1,796.14ADS#19 ‐ 2003 8,092.83

10,471.97 20,364.70

FLITCH

Table 9.36: KAYE Sorthouse Sizing Record

Carats

RIO ROM 1999/2001

Carats Stones



STONES

CaratsCts/BCM SelectedDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 208.055 0.0083 17 0.0007 ‐3.1687 8 0.0009 ‐3.0697 6 0.0007 ‐3.1802 3 0.0007 ‐3.1554 18.00 0.0010 ‐3.0222 9 0.0006 ‐3.2411 12.24+21 256.145 0.0102 52 0.0021 ‐2.6832 19 0.0020 ‐2.6940 14 0.0015 ‐2.8122 15 0.0035 ‐2.4565 58.00 0.0031 ‐2.5140 33 0.0021 ‐2.6768 4.93+19 443.465 0.0177 184 0.0073 ‐2.1344 77 0.0082 ‐2.0863 28 0.0031 ‐2.5112 27 0.0063 ‐2.2012 132.00 0.0070 ‐2.1569 107 0.0068 ‐2.1660 2.41+17 228.61 0.0091 154 0.0061 ‐2.2117 58 0.0062 ‐2.2093 20 0.0022 ‐2.6573 65 0.0151 ‐1.8196 404.00 0.0213 ‐1.6711 96 0.0061 ‐2.2131 1.48+15 194.25 0.0077 158 0.0063 ‐2.2005 64 0.0068 ‐2.1666 27 0.0030 ‐2.5270 55 0.0128 ‐1.8922 148.00 0.0078 ‐2.1072 94 0.0060 ‐2.2222 1.23+13 488.665 0.0195 623 0.0248 ‐1.6047 247 0.0263 ‐1.5801 106 0.0117 ‐1.9330 187 0.0436 ‐1.3607 549.00 0.0290 ‐1.5379 376 0.0240 ‐1.6202 0.78+12 327.955 0.0131 627 0.0250 ‐1.6019 267 0.0284 ‐1.5462 1279 0.1408 ‐0.8515 258 0.0601 ‐1.2209 583.00 0.0308 ‐1.5118 360 0.0230 ‐1.6390 0.523+11 625.405 0.0249 1,813 0.0723 ‐1.1408 739 0.0787 ‐1.1041 1596 0.1757 ‐0.7553 565 0.1317 ‐0.8805 1643.00 0.0867 ‐1.0618 1074 0.0685 ‐1.1643 0.345+9 760.52 0.0303 4,408 0.1758 ‐0.7549 1615 0.1720 ‐0.7646 3516 0.3870 ‐0.4123 1198 0.2792 ‐0.5541 3010.00 0.1589 ‐0.7989 2793 0.1781 ‐0.7493 0.173+7 617.825 0.0246 7,344 0.2929 ‐0.5333 2021 0.2152 ‐0.6672 4055 0.4463 ‐0.3503 1567 0.3652 ‐0.4375 4279.00 0.2259 ‐0.6461 5323 0.3395 ‐0.4692 0.084+5 844.62 0.0337 10,713 0.4273 ‐0.3693 4765 0.5073 ‐0.2947 12763 1.4048 0.1476 3459 0.8061 ‐0.0936 10302.00 0.5438 ‐0.2646 5948 0.3793 ‐0.4210 0.079+3 264.85 0.0106 4,233 0.1688 ‐0.7725 1282 0.1365 ‐0.8649 5359 0.5899 ‐0.2292 1349 0.3144 ‐0.5025 5382.00 0.2841 ‐0.5465 2951 0.1882 ‐0.7254 0.063‐3 50.48 0.0020 2,969 0.1184 ‐0.9266 1166 0.1241 ‐0.9061 1869 0.2057 ‐0.6867 307 0.0715 ‐1.1454 1690 0.0892 ‐1.0496 1803 0.1150 ‐0.9394 0.017

Total 5310.845 0.212 33,295 1.33 12328 1.31 30638 3.4 9055 2.1 28198 1.5 20967 1.34BCM


5,3110.212

25,072 9392

2133.71Selected Flitch*

0.227 0.498 0.236 0.230

KY01530*

9085 4,291 18944 15,680

0.203

KY01635* KY01600 KY01580 KY015504524.91 1011.495 4361.65 3177.135

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

KYO1635

KYO1600

KYO1580

KYO1550

KYO1530

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

KYO1635

KYO1530

Sale Sep‐99 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Total 49,300 BCMWeight cts cts cts cts cts cts cts mss Weight carats stones Cts/BCM St/BCMSpecial 76.35 201.66 0.00 0.00 80.89 19.50 378 15.50 Spec 378 24 0.008 0.0005+10cts 20.39 30.99 0.00 0.00 0.00 10.79 62 10.30 10cts 62 6 0.001 0.0001+9cts 18.37 27.36 0.00 0.00 18.24 0.00 64 9.30 9cts 64 7 0.001 0.0001+8cts 16.70 33.26 0.00 0.00 24.93 0.00 75 8.30 8cts 75 9 0.002 0.0002+7cts 22.43 34.94 0.00 0.00 0.00 0.00 57 7.30 7cts 57 8 0.001 0.0002+6cts 5.91 51.39 0.00 0.00 6.55 0.00 64 6.30 6cts 64 10 0.001 0.0002+5cts 58.02 65.22 0.00 10.68 4.89 10.08 149 5.30 5cts 149 28 0.003 0.0006+4cts 76.22 126.79 0.00 0.00 29.80 4.50 237 4.30 4cts 237 55 0.005 0.0011+3cts 98.41 119.45 0.00 3.59 53.79 12.65 288 3.30 3cts 288 87 0.006 0.00188gr 174.58 252.54 2.49 7.20 94.19 30.65 562 2.30 2cts 562 244 0.011 0.00506gr 106.87 187.44 1.73 0.00 44.45 31.45 372 1.20 1cts 1,139 949 0.023 0.01935gr 72.31 112.30 0.00 0.00 30.70 13.01 228 0.760 0.66cts 592 778 0.012 0.01584gr 163.58 271.88 0.92 0.00 67.26 35.44 539 0.345 +11 1,888 5473 0.038 0.11103gr 199.61 271.71 2.41 2.94 61.45 53.39 592 0.183 +9 1,660 9047 0.034 0.1835+11 567.10 881.38 10.92 13.18 261.56 153.98 1,888 0.096 +7 1,113 11620 0.023 0.2357+9 475.83 784.05 13.32 8.11 211.68 166.82 1,660 0.075 +5 1,651 21951 0.033 0.4453+7 298.15 525.71 9.97 2.75 147.65 128.95 1,113 0.041 +3 427 10362 0.009 0.2102+5 343.20 849.11 24.79 4.67 240.59 188.95 1,651 0.017 ‐3 65 3825 0.001 0.0776+3 31.59 272.76 11.60 1.94 67.04 42.36 427 Total 10,471.97 64,484 0.212 1.31‐3 1.31 50.32 2.47 0.11 6.98 3.83 65Total 2826.93 5150.26 80.62 55.17 1452.64 906.35 10,472

Table 9.38: RIO Production 1999/2001

RIO ROM 1999/2001

Sample NumbeSieve Plate 42.56 BCM

DTC carats stones carats stones carats stones carats stones carats stones carats stones mss Weight carats stones st/BCM log12 2.200 5 2.200 5 2.200 5 0.440 Spec 0 011 0.804 2 0.804 2 0.282 1 1.086 3 0.362 10cts 0 09 2.391 11 0.068 1 2.459 12 0.461 2 2.920 14 0.209 9cts 0 07 1.483 11 0.232 4 1.715 15 0.265 2 1.980 17 0.116 8cts 0 06 1.034 11 0.081 2 1.115 13 0.577 6 1.692 19 0.089 7cts 0 05 1.262 20 0.063 3 1.325 23 0.239 4 1.564 27 0.058 6cts 0 03 0.930 27 0.339 17 1.269 44 0 1.269 44 0.029 5cts 0 02 0.137 6 0.318 20 0.455 26 0.021 1 0.476 27 0.018 4cts 0 01 0.000 0 0.554 49 0.554 49 0.554 49 0.011 3cts 0 0

10.241 93 1.655 96 11.896 189 1.845 16 0.000 0 13.7 205 0.067 2cts 0 0‐1 0.000 0 0.303 43 0.303 43 0.006 1 0.000 0 1cts 0 0

Total 10.241 93 1.958 139 12.199 232 0.006 1 10.241 93 0.66cts 0 0+11 3.29 8.00 0.188 ‐0.73+9 2.92 14.00 0.329 ‐0.48+7 1.98 17.00 0.399 ‐0.40+5 3.26 46.00 1.081 0.03+3 1.27 44.00 1.034 0.01‐3 1.03 76.00 1.786 0.25

13.74 205.00 4.82cts/BCM 0.32

+1mm Slot ‐1mm Slot

Table 9.39: KAYE BULK SAMPLE 2005

Kaye Combined

76.6 wet Tonnes/42.56bcm(SG 1.8)05‐052‐006 05‐052‐007 (clean‐up) Total

+1mm Slot ‐1mm Slot Total

Kaye Critical Size

Weight cts,mm carats stones carats stones carats stones Weight carats stones actual mssSpecial 10.6 24.13 1 50.13 3 74.26 4 Spec 74.26 4 18.6+10cts 9.8 0.00 0 0.00 0 0.00 0 10cts 0.00 09cts 8.8 0.00 0 17.83 2 17.83 2 9cts 17.83 2 8.9+8cts 7.8 8.35 1 0.00 0 8.35 1 8cts 8.35 1 8.4+7cts 6.8 7.43 1 21.77 3 29.20 4 7cts 29.20 4 7.3+6cts 5.8 0.00 0 25.03 4 25.03 4 6cts 25.03 4 6.3+5cts 4.8 16.18 3 36.00 7 52.18 10 5cts 52.18 10 5.2+4cts 3.8 3.89 1 26.10 6 29.99 7 4cts 29.99 7 4.3+3cts 2.8 16.78 5 106.85 34 123.63 39 3cts 123.63 39 3.2+10gr 2.5 21.36 8 48.21 19 69.57 27 2cts 229.72 103 2.2+8gr 1.8 34.50 16 125.65 60 160.15 76 1cts 380.00 303 1.3+6gr 1.4 26.93 17 107.29 67 134.22 84 0.66cts 158.12 214 0.74+5gr 1.2 11.71 9 86.56 66 98.27 75 +11 481.80 1,332 0.362+4gr 0.9 36.98 36 110.53 108 147.51 144 +9 449.04 2,237 0.201+3gr 0.66 34.42 45 123.70 169 158.12 214 +7 331.67 2,635 0.126+11 3.454 104.89 280 376.91 1052 481.80 1332 +5 610.85 9,216 0.066+9 2.845 97.76 470 351.28 1767 449.04 2237 +3 314.16 9,937 0.032+7 2.464 72.21 554 259.47 2081 331.67 2635 ‐3 200.62 12,642 0.016+5 1.829 132.99 1937 477.87 7280 610.85 9216 3516.47 38,690 0.091+3 1.477 68.40 2088 245.77 7849 314.16 9937‐3 1.092 43.68 2657 156.94 9985 200.62 12642

Total 762.58 8128 2753.89 30562 3516.47 38690

Total2009 to 28 Apr 10 29 Apr to 14Sep 10

Table 9.40: NADL KAYE ROM 2009/2010

Sample wt Sample wt Sample wt Sample wtSample No BCM Sample No BCM Sample No BCM Sample No BCM

Sieve Plate 106.1 Sieve Plate 95.45 Sieve Plate 92.4 Sieve Plate 198.5DTC carats stones carats stones carats stones st/BCM DTC carats stones carats stones carats stones st/BCM DTC cts st cts st cts st st/BCM DTC carats stones carats stones carats stones st/BCM

+6gr 1.50 1 1.500 1 0.009 6gr 0.000 0 6gr +6gr 1.50 1 0 0 1.500 1+5gr 5gr 0.000 0 5gr +5gr 0.00 0 0 0+4gr 0.94 1 1.15 1 2.088 2 0.019 4gr 0.000 0 4gr +4gr 0.94 1 1 1 2.088 2+3gr 2.49 3 1.55 2 4.041 5 0.047 3gr 0.000 0 3gr +3gr 2.49 3 2 2 4.041 5+12 0.62 2 0.624 2 0.019 12 1.59 3 1.586 3 0.031 +12 0.497 1 0.497 1 0.011 +12 0.62 2 0 1 1.121 3 0.015+11 1.71 5 0.179 1 1.888 6 0.057 11 0.90 2 0.898 2 0.021 +11 0.840 2 1.530 5 2.370 7 0.076 +11 2.55 7 2 6 4.258 13 0.065+9 2.52 13 0.887 4 3.410 17 0.160 9 0.70 3 0.10 1 0.796 4 0.042 +9 0.889 6 0.880 7 1.769 13 0.141 +9 3.41 19 2 11 5.179 30 0.151+7 1.70 12 0.995 10 2.696 22 0.207 7 0.10 1 0.35 3 0.446 4 0.042 +7 1.883 14 0.369 4 2.252 18 0.195 +7 3.58 26 1 14 4.948 40 0.202+6 0.96 13 0.317 4 1.280 17 0.160 6 0.60 9 0.240 3 0.842 12 0.126 +6 1.378 16 0.596 8 1.974 24 0.260 +6 2.34 29 1 12 3.254 41 0.207+5 1.19 25 0.473 8 1.666 33 0.311 5 0.34 7 0.050 1 0.393 8 0.084 +5 0.703 12 0.428 9 1.131 21 0.227 +5 1.90 37 1 17 2.797 54 0.272+3 1.27 39 0.570 18 1.835 57 0.537 3 0.36 12 0.110 5 0.466 17 0.178 +3 0.898 26 1.107 34 2.005 60 0.649 +3 2.16 65 2 52 3.840 117 0.589‐3 1.00 72 0.361 24 1.358 96 0.905 1 0.42 26 0.050 2 0.469 28 0.293 +1 0.671 45 0.842 51 1.513 96 1.039 ‐3 1.67 117 1 75 2.871 192 0.967

15.90 186 6.482 72 22.386 258 2.432 5.00 63 0.900 15 5.896 78 0.817 Total 7.262 121 6.249 119 13.511 240 2.597 Total 23.17 307 12.731 191 35.897 498 2.509

Weight carats stones st/BCM log st/BCM Weight carats stones st/BCM log st/BCM Weight carats stones st/BCM log st/BCM Weight carats stones st/BCM log st/BCMSpec Spec Spec Spec10cts 10cts 10cts 10cts9cts 9cts 9cts 9cts8cts 8cts 8cts 8cts7cts 7cts 7cts 7cts6cts 6cts 6cts 6cts5cts 5cts 5cts 5cts4cts 4cts 4cts 4cts3cts 3cts 3cts 3cts2cts 2cts 2cts 2cts1cts 3.588 3 0.028 ‐1.55 1cts 1cts 1cts 3.588 3 0.015 ‐1.82

0.66cts 4.041 5 0.047 ‐1.33 0.66cts 0.66cts 0.66cts 4.041 5 0.025 ‐1.60+11 2.512 8 0.075 ‐1.12 +11 2.484 5 0.052 ‐1.28 +11 2.867 8 0.087 ‐1.06 +11 5.379 16 0.081 ‐1.09+9 3.410 17 0.160 ‐0.80 +9 0.796 4 0.042 ‐1.38 +9 1.769 13 0.141 ‐0.85 +9 5.179 30 0.151 ‐0.82+7 2.696 22 0.207 ‐0.68 +7 0.446 4 0.042 ‐1.38 +7 2.252 18 0.195 ‐0.71 +7 4.948 40 0.202 ‐0.70+5 2.946 50 0.471 ‐0.33 +5 1.235 20 0.210 ‐0.68 +5 3.105 45 0.487 ‐0.31 +5 6.051 95 0.479 ‐0.32+3 1.835 57 0.537 ‐0.27 +3 0.466 17 0.178 ‐0.75 +3 2.005 60 0.649 ‐0.19 +3 3.840 117 0.589 ‐0.23‐3 1.358 96 0.905 ‐0.04 ‐3 0.469 28 0.293 ‐0.53 ‐3 1.513 96 1.039 0.02 ‐3 2.871 192 0.967 ‐0.01

22.386 258 2.431668 5.896 78 0.81718177 13.511 240 2.597 35.897 498 2.509cts/BCM 0.211 cts/BCM 0.061771 cts/BCM 0.15 cts/BCM 0.18

Combined10‐330‐100/101/104/105

10‐330‐100/104 10‐330‐101/105 rejects TotalTotal10‐330‐100 Total

210 wet Tonnes/95.45bcm(SG 2.2)10‐330‐102/103

10‐330‐102

Table 9.41: Kaye Grade Control Samples

196 wet Tonnes/92.4bcm(SG 2.12)10‐330‐104/105

10‐330‐104 10‐330‐105 Rejects10‐330‐103 rejects

231.3 wet Tonnes/106.1bcm(SG 2.18)10‐330‐100/101

10‐330‐101 rejectsTotal

Comparison of Grade Control Samples

‐1.8

‐1.6

‐1.4

‐1.2

‐1

‐0.8

‐0.6

‐0.4

‐0.2

0

0.2

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

Axis Title 10‐330‐100 LOG ST/BCM

10‐330‐102 LOG ST/BCM

10‐330‐104 LOG ST/BCM

Combined Samples

‐2

‐1.8

‐1.6

‐1.4

‐1.2

‐1

‐0.8

‐0.6

‐0.4

‐0.2

0

Spec10

cts 9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66c

ts +11 +9 +7 +5 +3 ‐3

log st/BCM

*No Crush **Adjusted to grade control *HPGR Crushed *HPGR Crushed *HPGR Crushed **Adjusted

57000 BCM** 14000 BCM 198.5 BCM 90 BCM**Weight carats stones st/BCM log st/BCM ct/BCM Weight carats stones st/BCM log st/BCM Weight carats stones st/BCM log st/BCM Weight carats stones st/BCM log st/BCMSpec 378.40 24 0.00043 ‐3.4 0.00664 Spec 74.26 4 0.0003 ‐3.5 Spec 0 Spec 0 010cts 62.170 6 0.00011 ‐3.98 0.00109 10cts 0.00 0 0.0000 10cts 0 10cts 0 09cts 63.970 7 0.00012 ‐3.91 0.00112 9cts 17.83 2 0.0001 ‐3.85 9cts 0 9cts 0 08cts 74.890 9 0.00016 ‐3.80 0.00131 8cts 8.35 1 0.0001 ‐4.15 8cts 0 8cts 0 07cts 57.370 8 0.00014 ‐3.86 0.00101 7cts 29.20 4 0.0003 ‐3.54 7cts 0 7cts 0 06cts 63.850 10 0.00018 ‐3.75 0.00112 6cts 25.03 4 0.0003 ‐3.54 6cts 0 6cts 0 05cts 148.890 28 0.00049 ‐3.31 0.00261 5cts 52.18 10 0.0007 ‐3.15 5cts 0 5cts 0 04cts 237.310 55 0.00097 ‐3.01 0.00416 4cts 29.99 7 0.0005 ‐3.30 4cts 0 4cts 0 03cts 287.890 87 0.002 ‐2.82 0.00505 3cts 123.63 39 0.003 ‐2.56 3cts 0 3cts 0 02cts 561.650 244 0.004 ‐2.37 0.00985 2cts 229.72 103 0.007 ‐2.13 2cts 0 2cts 0 01cts 1139.340 949 0.017 ‐1.78 0.01999 1cts 380.00 303 0.022 ‐1.66 1cts 3.59 3.00 0.015 ‐1.82 1cts 0 0

0.66cts 591.510 778 0.014 ‐1.86 0.01038 0.66cts 158.12 214 0.015 ‐1.82 0.66cts 4.04 5.00 0.025 ‐1.60 0.66cts 0 0+11 1888.120 5473 0.096 ‐1.02 0.03312 +11 481.80 1332 0.095 ‐1.02 +11 5.38 16.00 0.081 ‐1.09 +11 5.379 8 0.09 ‐1.05+9 1659.810 9047 0.16 ‐0.80 0.02912 +9 449.04 2237 0.16 ‐0.80 +9 5.18 30.00 0.15 ‐0.82 +9 2.92 14 0.16 ‐0.81+7 1113.180 11620 0.20 ‐0.69 0.01953 +7 331.67 2635 0.19 ‐0.73 +7 4.95 40.00 0.20 ‐0.70 +7 1.98 17 0.19 ‐0.72+5 1651.310 21951 0.39 ‐0.41 0.02897 +5 610.85 9216 0.66 ‐0.18 +5 6.05 95.00 0.48 ‐0.32 +5 3.256 46 0.51 ‐0.29+3 427.290 10362 0.18 ‐0.74 0.00750 +3 314.16 9937 0.71 ‐0.15 +3 3.84 117.00 0.59 ‐0.23 +3 1.269 44 0.49 ‐0.31‐3 65.020 3825 0.07 ‐1.17 0.00114 ‐3 200.62 12642 0.90 ‐0.04 ‐3 2.87 192.00 0.97 ‐0.01 ‐3 1.03 76 0.84 ‐0.07

10471.97 64484 1.13 0.18 3516.5 38690 2.76 35.9 498 2.51 15.834 205 4.82cts/BCM 0.18 cts/BCM 0.25 cts/BCM 0.18 cts/BCM 0.18

*No Crush

720000 BCM Cum Cum % Cum Cum % Cum Cum %Weight mss cts st st/BCM log st/BCM ct/BCM mss Weight st/BCM log st/BCM cts/BCM Weight ct/BCM ct/BCM ct/BCM Weight ct/BCM ct/BCM ct/BCM Weight ct/BCM ct/BCM ct/BCMSpec 15.50 2237.84 144 0.00020 ‐3.70 0.003 15.50 Special 0.00020 ‐3.6978 0.0031 Spec 0.0031 0.003 1.19% Spec 0.0031 0.0031 1.46% Spec 0.0066 0.007 3.61%10cts 10.30 340.05 33 0.00005 ‐4.34 0.0005 10.30 +10 0.00005 ‐4.3386 0.0005 10cts 0.0005 0.0036 1.37% 10cts 0.0005 0.0036 1.68% 10cts 0.0011 0.0077 4.21%9cts 9.30 444.45 48 0.00007 ‐4.18 0.0006 9.30 +9 0.00007 ‐4.1780 0.0006 9cts 0.0006 0.0042 1.61% 9cts 0.0006 0.0042 1.97% 9cts 0.0011 0.0089 4.82%8cts 8.30 602.23 73 0.00010 ‐4.00 0.0008 8.30 +8 0.00010 ‐3.9966 0.0008 8cts 0.0008 0.0050 1.93% 8cts 0.0008 0.0050 2.36% 8cts 0.0013 0.0102 5.53%7cts 7.30 690.13 95 0.00013 ‐3.88 0.0010 7.30 +7 0.00013 ‐3.8817 0.0010 7cts 0.0010 0.0060 2.30% 7cts 0.0010 0.0060 2.81% 7cts 0.0010 0.0112 6.08%6cts 6.30 823.33 131 0.00018 ‐3.74 0.0011 6.30 +6 0.00018 ‐3.7411 0.0011 6cts 0.0011 0.0071 2.74% 6cts 0.0011 0.0071 3.35% 6cts 0.0011 0.0123 6.69%5cts 5.30 1708.85 322 0.00045 ‐3.35 0.0024 5.30 +5 0.00045 ‐3.3489 0.0024 5cts 0.0024 0.0095 3.64% 5cts 0.0024 0.0095 4.46% 5cts 0.0026 0.0149 8.11%4cts 4.30 2235.35 520 0.00072 ‐3.14 0.0031 4.30 +4 0.0007 ‐3.1415 0.0031 4cts 0.0031 0.0126 4.83% 4cts 0.0031 0.0126 5.92% 4cts 0.0042 0.0191 10.38%3cts 3.30 4094.12 1241 0.0017 ‐2.76 0.0057 3.30 +3 0.0017 ‐2.7637 0.0057 3cts 0.0057 0.0183 7.01% 3cts 0.0057 0.0183 8.59% 3cts 0.0051 0.0241 13.13%2cts 2.30 8173.90 3554 0.0049 ‐2.31 0.0114 2.30 +2 0.0049 ‐2.3066 0.0114 2cts 0.0114 0.0297 11.37% 2cts 0.0114 0.0297 13.91% 2cts 0.0099 0.0340 18.49%1cts 1.20 18012.77 15011 0.0208 ‐1.68 0.0250 1.20 +1 0.0208 ‐1.6809 0.0250 1cts 0.0250 0.0547 20.95% 1cts 0.0250 0.0547 25.65% 1cts 0.0200 0.0540 29.37%

0.66cts 0.76 9751.01 12830 0.0178 ‐1.75 0.0135 0.760 +.66 0.0178 ‐1.7491 0.0135 0.66cts 0.0135 0.0682 26.15% 0.66cts 0.0135 0.0682 32.01% 0.66cts 0.0104 0.0643 35.02%+11 0.332 31985.49 96209 0.134 ‐0.87 0.044 0.345 +11 0.1336 ‐0.8741 0.0461 +11 0.0461 0.1143 43.81% +11 0.0444 0.1126 52.85% +11 0.0331 0.0975 53.05%+9 0.195 25612.76 131526 0.18 ‐0.74 0.036 0.194 +9 0.18 ‐0.7383 0.0353 +9 0.0353 0.1497 57.36% +9 0.0356 0.1482 69.55% +9 0.0291 0.1266 68.90%+7 0.119 16818.08 140976 0.20 ‐0.71 0.023 0.120 +7 0.20 ‐0.7082 0.0235 +7 0.0235 0.1732 66.37% +7 0.0234 0.1716 80.51% +7 0.0195 0.1461 79.53%+5 0.070 23873.91 342050 0.48 ‐0.32 0.033 0.069 +5 0.66 ‐0.1816 0.0454 +5 0.0454 0.2186 83.78% +5 0.0332 0.2047 96.07% +5 0.0290 0.1751 95.30%+3 0.038 5432.40 141296 0.20 ‐0.71 0.008 0.038 +3 0.71 ‐0.1489 0.0270 +3 0.0270 0.2456 94.12% +3 0.0075 0.2123 99.61% +3 0.0075 0.1826 99.38%‐3 0.017 604.42 35553 0.05 ‐1.31 0.001 0.017 -3 0.90 ‐0.0443 0.0154 ‐3 0.0154 0.2609 100.00% ‐3 0.0008 0.2131 100.00% ‐3 0.0011 0.1837 100.00%

0.00 153441.1 921,610 1.28 0.21 Total 2.83 0.26 0.26 0.21 0.18cts/BCM 0.213

NADL Bulk Sample 2005*

Merlin Average ‐ non‐micaceous pipes

Table 9.42: GRADE MODEL

RIO ROM 1999/2001* NADL ROM 2009/2010* NADL Combined Grade Control*

NADL Resource Model Production Model RIO Historic MineResource MODEL

‐5.0

‐4.5

‐4.0

‐3.5

‐3.0

‐2.5

‐2.0

‐1.5

‐1.0

‐0.5

0.0

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

RIO ROM

NADL ROM

Average non‐micaceous pipes

‐5.0

‐4.5

‐4.0

‐3.5

‐3.0

‐2.5

‐2.0

‐1.5

‐1.0

‐0.5

0.0

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

NADL Grade Control Sample

NADL 2005 Bulk Sample

Merlin Average

8‐Sep‐00 4‐Apr‐02 22‐Jun‐01 29‐Jul‐02 29‐Jul‐02 18‐Mar‐02 18‐Mar‐02 29‐Jul‐02 11‐Jun‐02DTC Sieve Siz Total Carats *Selected CT01625 CT01700 CT01685* CT01600* CT01580 CT01680* CT01670 CT01650* CT01630* DTC Sieve Selected Cts/BCM Selected St/BCM MSS

+23 1,038.35 742.95 152.45 27.25 273.47 73.79 118.4 69.16 124.935 198.89 +23 742.95 0.013 61 0.001 12.18+21 1,144.02 885.99 118.4 55.835 198.3 81.7 121.39 57.93 163.195 347.27 +21 885.99 0.016 198 0.004 4.47+19 1,584.61 1,259.74 82.87 117.98 327.33 166.315 174.11 75.68 266.485 373.835 +19 1,259.74 0.023 554 0.010 2.27+17 814.53 588.85 92.11 50.56 173.625 67.295 80.99 66.28 133.65 150.02 +17 588.85 0.011 412 0.007 1.43+15 660.28 493.75 71.4 39.365 122.81 64.38 80.31 30.75 94.24 157.02 +15 493.75 0.009 447 0.008 1.10+13 1,672.14 1,219.51 162.75 108.35 334.05 208.335 196.77 81.54 238.305 342.035 +13 1,219.51 0.022 1,532 0.028 0.80+12 1,802.02 918.51 605.9 109.15 70.52 268.975 117.625 154.58 50.83 175.097 249.34 +12 918.51 0.017 1,778 0.032 0.52+11 2,142.00 1,529.85 167.275 160.03 128.155 415.465 196.47 256.93 88.37 291.235 438.066 +11 1,529.85 0.028 4,416 0.080 0.346+9 2,478.63 1,719.67 212.225 206.69 149.165 464.745 233.28 277.53 106.77 331.245 496.98 +9 1,719.67 0.031 8,610 0.155 0.200+7 1,853.09 1,297.16 142.1 150.17 111.315 363.775 178.16 208.26 85.5 249.95 363.86 +7 1,297.16 0.023 10,588 0.191 0.123+5 2,709.53 1,899.10 239.695 197.16 184.135 516.34 249.04 298.72 124.54 365.4 534.5 +5 1,899.10 0.034 28,903 0.521 0.066+3 799.65 548.52 75.985 66.31 41.18 142.67 71 79.14 37.84 117.525 168 +3 548.52 0.010 13,614 0.245 0.040‐3 153.29 111.88 13.4 12.91 4.605 35.22 9.445 17.36 5.66 19.71 34.98 ‐3 111.88 0.002 6,581 0.119 0.017

Total 18,852.11 13,215.45 1456.58 1582.4 1088.415 3636.775 1716.835 2064.49 880.85 2570.972 3854.796 Total 13,215.45 0.24 77,694 1.40 0.17

8‐Sep‐00 4‐Apr‐02 22‐Jun‐01 29‐Jul‐02 29‐Jul‐02 18‐Mar‐02 18‐Mar‐02 29‐Jul‐02 11‐Jun‐02DTC Sieve Siz Total Stones *Selected CT01625 CT01700 CT01685* CT01600* CT01580 CT01680* CT01670 CT01650* CT01630* Carats Stones MSS

+23 82 61 11 3 18 5 11 5 12 17 27.25 3 9.08+21 256 198 26 14 46 20 30 12 36 72 55.835 14 3.988+19 688 554 34 45 143 67 75 33 118 173 117.98 45 2.622+17 564 412 61 33 121 43 55 48 98 105 50.56 33 1.532+15 597 447 61 33 116 55 71 34 85 142 39.365 33 1.193+13 2,102 1,532 211 133 426 254 241 105 300 432 108.35 133 0.815+12 2,913 1,778 607 208 137 527 225 294 95 340 480 70.52 137 0.515+11 6,250 4,416 522 476 357 1,203 565 740 271 866 1250 128.155 357 0.359+9 12,410 8,610 1120 1031 733 2,353 1,120 1339 529 1705 2480 149.165 733 0.203+7 15,181 10,588 1183 1246 875 2,967 1,436 1669 728 2115 2962 111.315 875 0.127+5 40,444 28,903 3163 2969 2772 7,966 3,690 4666 1719 6036 7463 184.135 2772 0.066+3 20,077 13,614 1749 1875 1207 2,208 2,044 2355 795 3587 4257 41.18 1207 0.034‐3 9,017 6,581 788 759 271 2072 556 1021 333 1159 2058 4.605 271 0.017

Total 110,581 77,694 9132 8968 6613 20166 10080 12567 4707 16457 21891

Flitch BCM Mine Rec sized sold Cts/BCM St/BCM Export Sale Number Valuation SalesCT01700 2616 1,582.38 1,582.40 1,582.38 0.60 3.43 ADS#1 ‐ May 99CT01685 6567 1,088.45 1,088.42 1,088.45 0.17 1.01 ADS#2 ‐ 7 June 1999CT01680 9843 2,064.59 2,064.49 2,064.59 0.21 1.28 ADS#3 ‐ 14 July 1999CT01670 4,138 868.10 880.85 879.55 0.21 1.14 ADS#4 ‐ Sept / Oct 1999CT01650 16,951 2,563.62 2,570.97 2,563.56 0.15 0.97 ADS#5 ‐ Nov / Dec 1999CT01630 11,372 3,856.93 3,854.80 3,854.77 0.34 1.92 ADS#6 ‐ 28 Feb 2000CTO1625 9,776 1,456.61 1,456.58 1,456.61 0.15 0.93 ADS#7 ‐ 8 May 2000CT01600 10,723 3,637.21 3,636.78 3,637.21 0.34 1.88 ADS#8 ‐ 12 July 2000CT01580 1,573.59 1,716.84 1,683.96 ADS#9 ‐ 23 Aug 2000CTO1550 245.52 245.52 ADS#10 ‐ 2 Oct 2000

71,986 18,937.00 18,852.12 19,056.60 0.26 1.54 ADS#11 ‐ 29 Nov 2000 1,457.64 1,456.6155,456 13,211 13,215 13,209 0.24 1.40 ADS#12 ‐ 2001

ADS#13 ‐ 2001ADS#14 ‐ 2001 1,087.91 1,088.45ADS#15 ‐ 2001ADS#16 ‐ 2002ADS#17 ‐ 2002 3,336.24ADS#18 ‐ 2002 7,990.80ADS#19 ‐ 2003 5,184.50

2,545.55 19,056.60

StonesCARATS FLITCHDate received Sorthouse

Selected Flitches

Table 9.43: ECTOR Sorthouse Sizing Record


Carats

Carats

STONES FLITCHCT01685

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 742.95 0.0134 61 0.0011 ‐2.9586 11 0.0042 ‐2.3762 3 0.0005 ‐3.3402 18 0.0017 ‐2.7750 11 0.0011 ‐2.9517 5 0.0012 ‐2.9178 12 0.0007 ‐3.1500 17 0.0015 ‐2.8254 12.18+21 885.99 0.0160 198 0.0036 ‐2.4473 26 0.0099 ‐2.0027 14 0.0021 ‐2.6712 46 0.0043 ‐2.3676 30 0.0030 ‐2.5160 12 0.0029 ‐2.5376 36 0.0021 ‐2.6729 72 0.0063 ‐2.1985 4.47+19 1259.74 0.0227 554 0.0100 ‐2.0004 34 0.0130 ‐1.8862 45 0.0069 ‐2.1642 143 0.0133 ‐1.8750 75 0.0076 ‐2.1181 33 0.0080 ‐2.0983 118 0.0070 ‐2.1573 173 0.0152 ‐1.8178 2.27+17 588.85 0.0106 412 0.0074 ‐2.1291 61 0.0233 ‐1.6323 33 0.0050 ‐2.2989 121 0.0113 ‐1.9475 55 0.0056 ‐2.2528 48 0.0116 ‐1.9355 98 0.0058 ‐2.2380 105 0.0092 ‐2.0346 1.43+15 493.75 0.0089 447 0.0081 ‐2.0936 61 0.0233 ‐1.6323 33 0.0050 ‐2.2989 116 0.0108 ‐1.9659 71 0.0072 ‐2.1419 34 0.0082 ‐2.0853 85 0.0050 ‐2.2998 142 0.0125 ‐1.9035 1.10+13 1219.51 0.0220 1,532 0.0276 ‐1.5587 211 0.0807 ‐1.0934 133 0.0203 ‐1.6935 426 0.0397 ‐1.4009 241 0.0245 ‐1.6111 105 0.0254 ‐1.5956 300 0.0177 ‐1.7521 432 0.0380 ‐1.4204 0.80+12 918.51 0.0166 1,778 0.0321 ‐1.4940 208 0.0795 ‐1.0996 137 0.0209 ‐1.6806 527 0.0491 ‐1.3085 294 0.0299 ‐1.5248 95 0.0230 ‐1.6391 340 0.0201 ‐1.6977 480 0.0422 ‐1.3746 0.517+11 1529.85 0.0276 4,416 0.0796 ‐1.0989 476 0.1820 ‐0.7400 357 0.0544 ‐1.2647 1,203 0.1122 ‐0.9501 740 0.0752 ‐1.1239 271 0.0655 ‐1.1838 866 0.0511 ‐1.2917 1250 0.1099 ‐0.9589 0.346+9 1719.67 0.0310 8,610 0.1553 ‐0.8089 1031 0.3941 ‐0.4044 733 0.1116 ‐0.9523 2,353 0.2194 ‐0.6587 1339 0.1360 ‐0.8663 529 0.1278 ‐0.8933 1705 0.1006 ‐0.9975 2480 0.2181 ‐0.6614 0.200+7 1297.16 0.0234 10,588 0.1909 ‐0.7191 1246 0.4763 ‐0.3221 875 0.1332 ‐0.8754 2,967 0.2767 ‐0.5580 1669 0.1696 ‐0.7707 728 0.1759 ‐0.7547 2115 0.1248 ‐0.9039 2962 0.2605 ‐0.5843 0.123+5 1899.10 0.0342 28,903 0.5212 ‐0.2830 2969 1.1349 0.0550 2772 0.4221 ‐0.3746 7,966 0.7429 ‐0.1291 4666 0.4740 ‐0.3242 1719 0.4154 ‐0.3815 6036 0.3561 ‐0.4484 7463 0.6563 ‐0.1829 0.066+3 548.52 0.0099 13,614 0.2455 ‐0.6100 1875 0.7167 ‐0.1446 1207 0.1838 ‐0.7357 2,208 0.2059 ‐0.6863 2355 0.2393 ‐0.6211 795 0.1921 ‐0.7164 3587 0.2116 ‐0.6745 4257 0.3743 ‐0.4267 0.040‐3 111.88 0.0020 6,581 0.1187 ‐0.9257 759 0.2903 ‐0.5372 271 0.0412 ‐1.3846 2072 0.1932 ‐0.7140 1021 0.1037 ‐0.9840 333 0.0805 ‐1.0944 1159 0.0684 ‐1.1650 2058 0.1809 ‐0.7425 0.017

Total 13215.45 0.24 77,694 1.40 8968 3.4 6613 1.0 20166 1.9 12567 1.3 4707 1.1 16457 1.0 21891 1.9 0.170096BCM

3636.7750.339

2570.9720.152

2064.490.210

880.85

11,3729843 4,138 16,951

0.2130.605

55,456 2616 6567 10,723

0.166

Selected Flitch*13,2150.238

1088.4151582.4


3854.7960.339

CT01630*CT01700 CT01685* CT01600* CT01680* CT01670 CT01650*

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

CTO1700

CTO1685

CTO1600

CTO1680

CTO1670

CTO1650

CTO1630

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

CTO1685

CTO1600

CTO1680

CTO1650

CTO1630

CARATSSale Nov‐00 Oct‐01 Total 16343 BCM 12200 BCM* *Estimated

Weight cts cts cts Weight mss carats Ct/BCM Stones St/BCM Log st/BCM Weight mss carats Stones St/BCM Log st/BCMSpecial 28.55 11.83 40 Spec 15.50 40.38 0.0025 3 0.0002 ‐3.80 Spec 15.50 40.38 3 0.0002 ‐3.67+10cts 0.00 0.00 0 10cts 10.30 0.00 0.00 0 0.0000 10cts 10.30 0.00 0 0.0000+9cts 0.00 0.00 0 9cts 9.30 0.00 0.00 0 0.0000 9cts 9.30 0.00 0 0.0000+8cts 0.00 7.86 8 8cts 8.30 7.86 0.0005 1 0.0001 ‐4.24 8cts 8.30 7.86 1 0.0001 ‐4.11+7cts 7.13 7.56 15 7cts 7.30 14.69 0.0009 2 0.0001 ‐3.91 7cts 7.30 14.69 2 0.0002 ‐3.78+6cts 0.00 0.00 0 6cts 6.30 0.00 0.00 0 0.0000 6cts 6.30 0.00 0 0.0000+5cts 21.61 42.54 64 5cts 5.30 64.15 0.0039 12 0.0007 ‐3.13 5cts 5.30 64.15 12 0.0010 ‐3.00+4cts 21.25 24.66 46 4cts 4.30 45.91 0.0028 11 0.0007 ‐3.18 4cts 4.30 45.91 11 0.0009 ‐3.06+3cts 50.33 45.15 95 3cts 3.30 95.48 0.0058 29 0.0018 ‐2.75 3cts 3.30 95.48 29 0.0024 ‐2.628gr 69.85 74.65 145 2cts 2.30 144.50 0.0088 63 0.0038 ‐2.42 2cts 2.30 144.50 63 0.0051 ‐2.296gr 59.52 33.97 93 1cts 1.30 308.45 0.0189 237 0.0145 ‐1.84 1cts 1.30 308.45 237 0.0194 ‐1.715gr 46.66 23.56 70 0.66cts 0.77 157.28 0.0096 204 0.0125 ‐1.90 0.66cts 0.77 157.28 204 0.0167 ‐1.784gr 77.58 67.16 145 +11 0.380 456.73 0.0279 1202 0.0735 ‐1.13 +11 0.380 456.73 1202 0.0985 ‐1.013gr 102.15 55.13 157 +9 0.200 361.44 0.0221 1808 0.1106 ‐0.96 +9 0.200 361.44 1808 0.1482 ‐0.83+11 262.04 194.69 457 +7 0.122 253.23 0.0155 2075 0.1270 ‐0.90 +7 0.122 253.23 2075 0.1701 ‐0.77+9 211.05 150.39 361 +5 0.066 425.08 0.0260 6430 0.3934 ‐0.41 +5 0.066 425.08 6430 0.5270 ‐0.28+7 143.13 110.10 253 +3 0.040 148.35 0.0091 3701 0.2265 ‐0.64 +3 0.040 148.35 3701 0.3034 ‐0.52+5 248.04 177.04 425 ‐3 0.017 22.02 0.0013 1295 0.0793 ‐1.10 ‐3 0.017 22.02 1295 0.1062 ‐0.97

+3 91.56 56.79 148 2545.55 0.16 17073 1.04 2545.55 17073 1.40

‐3 17.19 4.83 22 Cts/BCM 0.16 Cts/BCM 0.21

Total 1457.64 1087.91 2,545.55

Ector Flitch CTO1685 and CTO1625 Ector Average


Ector 1685 1625

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66

cts

+11 +9 +7 +5 +3 ‐3

Ector 1685 1625

*ADJUSTED *No Crush *No Crush *No Crush49000 BCM* 12200 BCM 866000 BCM

Weight carats stones st/BCM log st/BCM Weight mss carats Stones St/BCM log st/BCM ct/BCM Weight mss cts st st/BCM log st/BCM ct/BCM Weight mss st/BCM log st/BCM ct/BCMSpec 378.40 27 0.00055 ‐3.3 Spec 15.50 40.38 3 0.00021 ‐3.67 0.003 Spec 15.50 2431.17 157 0.00018 ‐3.74 0.003 Spec 15.50 0.00018 ‐3.74 0.00310cts 62.17 6 0.00012 ‐3.91 10cts 10.30 0.00 0 0.00000 0.0000 10cts 10.30 361.35 35 0.00004 ‐4.39 0.0004 10cts 10.30 0.00004 ‐4.39 0.00049cts 63.97 7 0.00014 ‐3.85 9cts 9.30 0.00 0 0.00000 0.0000 9cts 9.30 508.89 55 0.00006 ‐4.20 0.0006 9cts 9.30 0.00006 ‐4.20 0.00068cts 74.89 9 0.00018 ‐3.73 8cts 8.30 7.86 1 0.00008 ‐4.11 0.0006 8cts 8.30 701.30 84 0.0001 ‐4.01 0.0008 8cts 8.30 0.00010 ‐4.01 0.00087cts 57.37 8 0.00016 ‐3.79 7cts 7.30 14.69 2 0.00016 ‐3.78 0.0012 7cts 7.30 835.26 114 0.0001 ‐3.88 0.0010 7cts 7.30 0.00013 ‐3.88 0.00106cts 63.85 10 0.00021 ‐3.68 6cts 6.30 0.00 0 0.00000 0.000 6cts 6.30 1059.73 168 0.0002 ‐3.71 0.001 6cts 6.30 0.00019 ‐3.71 0.00125cts 148.89 28 0.00057 ‐3.24 5cts 5.30 64.15 12 0.0010 ‐3.00 0.005 5cts 5.30 2102.80 397 0.0005 ‐3.34 0.002 5cts 5.30 0.00046 ‐3.34 0.00244cts 237.31 55 0.0011 ‐2.95 4cts 4.30 45.91 11 0.0009 ‐3.06 0.004 4cts 4.30 2689.74 626 0.0007 ‐3.14 0.003 4cts 4.30 0.00072 ‐3.14 0.00313cts 287.89 87 0.0018 ‐2.75 3cts 3.30 95.48 29 0.0024 ‐2.62 0.008 3cts 3.30 5019.51 1,521 0.0018 ‐2.76 0.006 3cts 3.30 0.00176 ‐2.76 0.00582cts 561.65 244 0.0050 ‐2.30 2cts 2.30 144.50 63 0.0051 ‐2.29 0.012 2cts 2.30 9769.51 4,248 0.0049 ‐2.31 0.011 2cts 2.30 0.00490 ‐2.31 0.01131cts 1139.34 876 0.0179 ‐1.75 1cts 1.30 308.45 237 0.0194 ‐1.71 0.025 1cts 1.20 21397.14 17,831 0.0206 ‐1.69 0.025 1cts 1.20 0.02059 ‐1.69 0.0247

0.66cts 591.51 768 0.0157 ‐1.80 0.66cts 0.77 157.28 204 0.0167 ‐1.78 0.013 0.66cts 0.76 11650.02 15,329 0.0177 ‐1.75 0.013 0.66cts 0.76 0.01770 ‐1.75 0.0135+11 1888.12 5722 0.1168 ‐0.93 +11 0.380 456.73 1202 0.0985 ‐1.01 0.037 +11 0.332 38667.23 116,307 0.134 ‐0.87 0.045 +11 0.332 0.13430 ‐0.87 0.0447+9 1659.81 7217 0.1473 ‐0.83 +9 0.200 361.44 1808 0.1482 ‐0.83 0.030 +9 0.195 31206.26 160,249 0.185 ‐0.73 0.036 +9 0.195 0.18505 ‐0.73 0.0360+7 1113.18 8246 0.1683 ‐0.77 +7 0.122 253.23 2075 0.1701 ‐0.77 0.021 +7 0.119 20464.68 171,543 0.198 ‐0.70 0.024 +7 0.119 0.19809 ‐0.70 0.0236+5 1651.31 23258 0.4747 ‐0.32 +5 0.066 425.08 6430 0.5270 ‐0.28 0.035 +5 0.070 28404.81 406,966 0.470 ‐0.33 0.033 +5 0.070 0.527 ‐0.28 0.0368+3 427.29 11244 0.2295 ‐0.64 +3 0.040 148.35 3701 0.3034 ‐0.52 0.012 +3 0.038 6425.38 167,123 0.193 ‐0.71 0.007 +3 0.038 0.303 ‐0.52 0.0117‐3 65.02 3825 0.0781 ‐1.11 ‐3 0.017 22.02 1295 0.1062 ‐0.97 0.002 ‐3 0.017 715.39 42,080 0.049 ‐1.31 0.001 ‐3 0.017 0.106 ‐0.97 0.0018

10471.97 61637 1.26 2545.55 17073 1.40 0.21 184410.17 1,104,834 1.28 0.21 1.50 0.22cts/BCM 0.21 Cts/BCM 0.21 cts/BCM 0.213


0.66cts 0.0135 0.0676 30.42% 0.66cts 0.0135 0.0676 31.74% 0.66cts 0.0129 0.0720 34.52%+11 0.0447 0.1122 50.52% +11 0.0447 0.1122 52.71% +11 0.0374 0.1095 52.46%+9 0.0360 0.1483 66.74% +9 0.0360 0.1483 69.63% +9 0.0296 0.1391 66.66%+7 0.0236 0.1719 77.38% +7 0.0236 0.1719 80.72% +7 0.0208 0.1598 76.61%+5 0.0368 0.2087 93.94% +5 0.0328 0.2047 96.13% +5 0.0348 0.1947 93.31%+3 0.0117 0.2203 99.19% +3 0.0074 0.2121 99.61% +3 0.0122 0.2068 99.13%‐3 0.0018 0.2222 100.00% ‐3 0.0008 0.2129 100.00% ‐3 0.0018 0.2087 100.00%

0.22 0.21 0.21

Table 9.46: ECTOR GRADE MODEL

Production Model*

Resource Model Production Model RIO Historic Mine

Kaye RIO ROM 1999/2001 Merlin Average ‐ non‐micaceous pipesEctor Average

‐4.5

‐4.0

‐3.5

‐3.0

‐2.5

‐2.0

‐1.5

‐1.0

‐0.5

0.0

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66

cts

+11 +9 +7 +5 +3 ‐3

KAYE ROM

ECTOR ROM

‐5.00

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66

cts

+11 +9 +7 +5 +3 ‐3

Ector ROM

Merlin Average

19‐Jul‐00 19‐Jul‐00 4‐Oct‐00 22‐Jun‐01 23‐Jun‐01 24‐Jun‐01 25‐Jun‐01 26‐Jun‐01 6‐Mar‐02 7‐Mar‐02 29‐Jun‐01 1‐Jul‐01 11‐Jun‐02 3‐Jul‐01 4‐Jul‐01 23‐Sep‐02 28‐Oct‐02 28‐Oct‐02 28‐Oct‐02DTC Sieve Size Total Carats Selected* GR01635 GR01600 GR01550 GR01580* GR01530* GR01500* GR01480* GR01450* GR01430* GR01400* GR01380* GR01330* GR01300 GR01280 GR01250 GR01200 GR01150 GR01130 GR01030

+23 1,198.39 325.275 0.000 38.805 20.090 74.750 27.955 71.030 34.695 73.700 205.595 43.145 104.470 29.13 0 66.395 102.29 34.82 271.52+21 1,375.47 482.900 33.230 55.410 97.850 93.865 44.950 108.315 92.900 85.850 90.930 57.02 71.085 43.035 0 107.035 57.92 41.88 294.19+19 2,034.84 611.527 21.830 72.530 120.895 151.462 125.875 85.630 77.705 120.580 184.005 50.275 91.750 69.14 2.67 195.015 186.09 125.3 354.09+17 1,261.34 476.870 13.975 29.690 101.005 127.470 67.375 105.640 80.940 52.700 110.215 42.745 42.160 50.575 1.555 81.58 87.06 57.8 208.85+15 992.66 323.550 27.485 30.620 55.490 73.930 63.850 56.780 35.340 55.450 87.975 38.2 36.500 29.355 0 86.755 66.6 69.6 178.73+13 3,274.77 1176.870 38.965 92.425 148.935 240.545 199.550 235.165 178.835 216.490 313.140 106.285 156.580 98.89 1.09 227.57 235 199.4 585.9+12 4,480.48 920.515 202.015 810.335 1051.920 62.075 120.670 217.590 142.325 183.945 123.100 161.025 240.660 92.53 118.510 79.4 1.48 157.185 171.8 156 387.91+11 5,128.96 1673.965 63.920 176.130 459.090 115.100 230.245 360.330 322.940 331.220 246.625 264.760 458.080 148.09 235.230 143.99 2.46 304.635 310 261.9 694.21+9 6,517.10 2257.635 68.580 218.215 625.575 148.160 281.275 536.475 377.260 466.285 319.840 363.640 564.875 194.135 311.250 178.235 4.03 354.525 347.4 354.2 803.14+7 5,221.68 1821.265 43.175 134.800 458.275 99.335 203.675 420.930 314.985 367.435 245.500 313.275 491.925 159.14 245.760 159.81 5.09 270.715 305.7 302.5 679.65+5 7,322.52 2431.680 37.235 222.035 904.420 146.530 256.990 512.275 415.390 458.640 367.645 461.685 716.275 216.045 396.010 236.88 14.945 356.85 362.5 395.4 844.77+3 1,790.26 631.275 0.920 56.215 169.270 28.450 36.330 82.860 135.360 70.485 140.625 141.300 244.815 60.645 125.755 74.345 7.21 77.28 68.2 78.1 192.09‐3 391.01 155.395 6.860 6.860 80.425 1.170 4.165 10.765 30.155 10.400 40.130 55.710 50.605 8.235 26.050 11.43 0.92 11.165 7.6 1.5 26.86

Total 40,989.44 13288.722 422.705 1624.590 3884.460 920.300 1677.615 2903.247 2267.97 2550.97 1983.880 2366.165 3759.095 1216.49 1961.11 1204.215 41.45 2296.705 2308.16 2078.4 5521.91

19‐Jul‐00 19‐Jul‐00 4‐Oct‐00 22‐Jun‐01 23‐Jun‐01 24‐Jun‐01 25‐Jun‐01 26‐Jun‐01 6‐Mar‐02 7‐Mar‐02 29‐Jun‐01 1‐Jul‐01 11‐Jun‐02 3‐Jul‐01 4‐Jul‐01 23‐Sep‐02 28‐Oct‐02 28‐Oct‐02 28‐Oct‐02DTC Sieve Size Total Stones Selected* GR01635 GR01600 GR01550 GR01580* GR01530* GR01500* GR01480* GR01450* GR01430* GR01400* GR01380* GR01330* GR01300 GR01280 GR01250 GR01200 GR01150 GR01130 GR01030

+23 98 31 0 2 2 8 3 6 3 6 9 5 8 4 0 6 10 4 22+21 313 112 8 12 21 24 10 23 23 19 22 13 16 9 0 23 14 11 65+19 912 272 11 34 55 69 57 42 29 51 79 24 50 37 1 82 75 57 159+17 905 347 10 25 75 96 44 80 54 38 73 35 32 40 1 57 63 40 142+15 972 315 4 29 55 80 54 60 36 49 75 36 34 30 0 76 120 65 169+13 4357 1614 51 118 195 350 273 324 236 277 406 154 212 134 1 291 299 265 771+12 6745 1901 191 646 1033 121 251 464 281 384 247 335 463 190 243 160 3 312 340 317 764+11 15402 5120 191 514 1460 331 699 1103 1007 1020 736 795 1329 459 723 438 9 891 882 784 2031+9 33384 11501 332 1172 3636 761 1409 2794 1934 2331 1599 1814 2798 1029 1632 897 22 1780 1712 1761 3971+7 42110 14856 1 0 4240 823 1538 3450 2627 2951 1952 2564 3915 1312 2022 1234 48 2126 2420 2416 6471+5 102991 35050 0 0 15537 2075 3179 7361 5858 6700 4697 7489 10861 2945 4506 3541 247 4890 5152 5685 12268+3 49412 17722 0 0 5513 739 946 2239 3812 1983 4205 4115 7196 1368 3822 2107 211 1942 1855 2069 5290‐3 23000.29412 9141 404 404 4731 69 245 633 1774 612 2361 3277 2977 484 1532 672 54 657 447 88 1580

Total 280601.2941 97982 1118.529412 2735.529412 36234 5139 8670 18671 17734 16516 16178 20829 30203 8054 14832 9303 597 13133 13389 13562 33703

Flitch BCM Mine Rec sized sold Cts/BCM Export Sale Number Valuation SalesGRO1635 1054 433.84 422.7 433.84 0.41 ADS#1 ‐ May 99 DTC Sieve Selected* Cts/BCM Selected* St/BCM MSSGR01600 3,621 1,731.95 1,624.59 1,731.95 0.48 ADS#2 ‐ 7 June 1999 +23 325.275 0.0105 31 0.0010 10.49GR01580 3501 920.6 920.3 920.26 0.26 ADS#3 ‐ 14 July 1999 +21 482.9 0.0156 112 0.0036 4.31GR01550 7,676 3,819.80 3,884.46 3,819.80 0.50 ADS#4 ‐ Sept / Oct 1999 +19 611.527 0.0198 272 0.0088 2.25GR01530 3672 1678.19 1677.615 1678.19 0.46 ADS#5 ‐ Nov / Dec 1999 433.84 +17 476.87 0.0154 347 0.0112 1.37GR01500 7399 2768.17 2903.247 2908.33 0.39 ADS#6 ‐ 28 Feb 2000 +15 323.55 0.0105 315 0.0102 1.03GR01480 4894 2267.69 2267.97 2267.7 0.46 ADS#7 ‐ 8 May 2000 +13 1176.87 0.0380 1614 0.0522 0.73GR01450 5503 2550.69 2550.97 2550.69 0.46 ADS#8 ‐ 12 July 2000 3,371.02 +12 920.515 0.0297 1901 0.0614 0.48GR01430 4288 1983.89 1983.88 1983.89 0.46 ADS#9 ‐ 23 Aug 2000 3,226.92 +11 1673.965 0.0541 5120 0.1655 0.33GR01400 5490 2366.56 2366.165 2366.15 0.43 ADS#10 ‐ 2 Oct 2000 2,438.07 1,731.95 +9 2257.635 0.0730 11501 0.3717 0.20GR01380 3916 1715.8 3759.1 1715.8 0.44 ADS#11 ‐ 29 Nov 2000 3,440.70 +7 1821.265 0.0589 14856 0.4801 0.12GR01350 4,760 2,043.46 2,043.46 0.43 ADS#12 ‐ 2001 +5 2431.68 0.0786 35050 1.1328 0.07GRO1330 3368 1218.94 1216.49 1212.66 0.36 ADS#13 ‐ 2001 +3 631.275 0.0204 17722 0.5727 0.04GR01300 1,890.33 1,961.11 1,959.37 ADS#14 ‐ 2001 769.45 ‐3 155.395 0.0050 9140.882353 0.295419894 0GR01280 1,204.32 1,204.22 1,204.32 ADS#15 ‐ 2001 2,511.58 Total 13288.722 0.43 97981.88235 3.17GR01250 1,363.43 41.45 1,363.43 ADS#16 ‐ 2002 2,148.60 529.91GR01200 2,296.71 2,296.71 2,296.71 ADS#17 ‐ 2002 14,551.21GR01150 2308.33 2308.16 2308.33 ADS#18 ‐ 2002 7,210.99GR01130 2087 2078.4 2087 ADS#19 ‐ 2003 18,273.90GRO1080 1452 1451.52 13,696.19 46,941.95GR01030 1621.35 5521.91 5521.05GRO960 1346.6GRO930 1409.1GRO2002 361.8TOTAL 59,142 39,723.05 40,989.44 46,941.95

SELECTED 30942 13155.94 13288.722 13289.42 0.43

STONES FLITCH

Table 9.47: GARETH Sorthouse Sizing Record



CaratsCarats Stones

CaratsCts/BCMDTC Sieve Carats Cts/BCM Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log Stones St/BCM Log MSS

+23 325.28 0.0105 31 0.0010 ‐2.9992 0 0.0000 2 0.0006 ‐3.2432 2 0.0005 ‐3.2639 8 0.0011 ‐2.9661 3 0.0006 ‐3.2125 6 0.0011 ‐2.9624 3 0.0007 ‐3.1551 6 0.0011 ‐2.9614 9 0.0023 ‐2.6386 5 0.0015 ‐2.8284 10.49+21 482.90 0.0156 112 0.0036 ‐2.4413 8 0.0010 ‐2.9820 12 0.0034 ‐2.4650 21 0.0057 ‐2.2427 24 0.0032 ‐2.4890 10 0.0020 ‐2.6897 23 0.0042 ‐2.3789 23 0.0054 ‐2.2705 19 0.0035 ‐2.4608 22 0.0056 ‐2.2504 13 0.0039 ‐2.4134 4.31+19 611.53 0.0198 272 0.0088 ‐2.0560 11 0.0014 ‐2.8437 34 0.0097 ‐2.0127 55 0.0150 ‐1.8245 69 0.0093 ‐2.0303 57 0.0116 ‐1.9338 42 0.0076 ‐2.1174 29 0.0068 ‐2.1699 51 0.0093 ‐2.0320 79 0.0202 ‐1.6952 24 0.0071 ‐2.1472 2.25+17 476.87 0.0154 347 0.0112 ‐1.9502 10 0.0013 ‐2.8851 25 0.0071 ‐2.1463 75 0.0204 ‐1.6898 96 0.0130 ‐1.8869 44 0.0090 ‐2.0462 80 0.0145 ‐1.8375 54 0.0126 ‐1.8999 38 0.0069 ‐2.1598 73 0.0186 ‐1.7295 35 0.0104 ‐1.9833 1.37+15 323.55 0.0105 315 0.0102 ‐1.9922 4 0.0005 ‐3.2831 29 0.0083 ‐2.0818 55 0.0150 ‐1.8245 80 0.0108 ‐1.9661 54 0.0110 ‐1.9573 60 0.0109 ‐1.9624 36 0.0084 ‐2.0760 49 0.0089 ‐2.0494 75 0.0192 ‐1.7178 36 0.0107 ‐1.9711 1.03+13 1176.87 0.0380 1,614 0.0522 ‐1.2826 51 0.0066 ‐2.1776 118 0.0337 ‐1.4723 195 0.0531 ‐1.2749 350 0.0473 ‐1.3251 273 0.0558 ‐1.2535 324 0.0589 ‐1.2301 236 0.0550 ‐1.2593 277 0.0505 ‐1.2971 406 0.1037 ‐0.9843 154 0.0457 ‐1.3399 0.73+12 920.52 0.0297 1,901 0.0614 ‐1.2116 1033 0.1346 ‐0.8710 121 0.0346 ‐1.4614 251 0.0684 ‐1.1652 464 0.0627 ‐1.2027 281 0.0574 ‐1.2410 384 0.0698 ‐1.1563 247 0.0576 ‐1.2396 335 0.0610 ‐1.2145 463 0.1182 ‐0.9273 190 0.0564 ‐1.2486 0.48+11 1673.97 0.0541 5,120 0.1655 ‐0.7813 1460 0.1902 ‐0.7208 331 0.0945 ‐1.0244 699 0.1904 ‐0.7204 1103 0.1491 ‐0.8266 1007 0.2058 ‐0.6866 1020 0.1854 ‐0.7320 736 0.1716 ‐0.7654 795 0.1448 ‐0.8392 1329 0.3394 ‐0.4693 459 0.1363 ‐0.8656 0.327+9 2257.64 0.0730 11,501 0.3717 ‐0.4298 3636 0.4737 ‐0.3245 761 0.2174 ‐0.6628 1409 0.3837 ‐0.4160 2794 0.3776 ‐0.4229 1934 0.3952 ‐0.4032 2331 0.4236 ‐0.3731 1599 0.3729 ‐0.4284 1814 0.3304 ‐0.4809 2798 0.7145 ‐0.1460 1029 0.3055 ‐0.5150 0.196+7 1821.27 0.0589 14,856 0.4801 ‐0.3186 4240 0.5524 ‐0.2578 823 0.2351 ‐0.6288 1538 0.4188 ‐0.3779 3450 0.4663 ‐0.3314 2627 0.5368 ‐0.2702 2951 0.5363 ‐0.2706 1952 0.4552 ‐0.3418 2564 0.4670 ‐0.3307 3915 0.9997 ‐0.0001 1312 0.3895 ‐0.4094 0.123+5 2431.68 0.0786 35,050 1.1328 0.0541 15537 2.0241 0.3062 2075 0.5927 ‐0.2272 3179 0.8657 ‐0.0626 7361 0.9949 ‐0.0022 5858 1.1970 0.0781 6700 1.2175 0.0855 4697 1.0954 0.0396 7489 1.3641 0.1349 10861 2.7735 0.4430 2945 0.8744 ‐0.0583 0.069+3 631.28 0.0204 17,722 0.5727 ‐0.2420 5513 0.7182 ‐0.1437 739 0.2111 ‐0.6755 946 0.2576 ‐0.5890 2239 0.3026 ‐0.5191 3812 0.7789 ‐0.1085 1983 0.3603 ‐0.4433 4205 0.9806 ‐0.0085 4115 0.7495 ‐0.1252 7196 1.8376 0.2642 1368 0.4062 ‐0.3913 0.036‐3 155.40 0.0050 9,141 0.2954 ‐0.5296 4731 0.6163 ‐0.2102 69 0.0197 ‐1.7065 245 0.0667 ‐1.1757 633 0.0856 ‐1.0676 1774 0.3624 ‐0.4408 612 0.1112 ‐0.9540 2361 0.5505 ‐0.2592 3277 0.5969 ‐0.2241 2977 0.7602 ‐0.1191 484 0.1438 ‐0.8422 0.017

Total 13288.72 0.43 97,982 3.17 36234 4.7 5139 1.5 8670 2.4 18671 2.5 17734 3.6 16516 3.0 16178 3.8 20829 3.8 30203 7.7 8054 2.4 0.14BCM

13,289GR01480* GR01450* GR01430*

3884.46 920.3 1677.615 2903.247 2267.97 2550.97


GR01400* GR01380 GR01330*Selected Flitch* GR01550 GR01580 GR01530 GR01500*2366.165 3759.095 1216.49

5,503 4,288

0.431 0.960 0.3611983.88

0.464

33687676 3501 3,672 7399 4,894

0.429

30,942 5490 3,916

0.506 0.263 0.457 0.392 0.463 0.463

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

1.0000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3 GRO1550

GRO1580

GRO1530

GRO1500

GRO1480

GRO1450

GRO1430

GRO1400

GRO1380

GRO1330

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

0.5000

+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

GRO1500

GRO1480

GRO1450

GRO1430

GRO1400

GRO1330

Sale Sep-00 Nov-00 Oct-01 Jan-02 Total 15200 BCM* *Estimated

Weight cts cts cts cts cts Weight mss carats Stones St/BCM LogSpecial 49.47 109.93 38.79 0.00 198.19 Spec 15.50 198.19 13 0.0008 ‐3.08+10cts 0.00 0.00 0.00 0.00 0.00 10cts 10.30 0.00 0 0.0000+9cts 9.67 0.00 0.00 0.00 9.67 9cts 9.30 9.67 1 0.0001 ‐4.16+8cts 33.02 17.39 0.00 0.00 50.41 8cts 8.30 50.41 6 0.0004 ‐3.40+7cts 7.11 21.93 6.80 0.00 35.84 7cts 7.30 35.84 5 0.0003 ‐3.49+6cts 19.12 37.39 0.00 12.04 68.55 6cts 6.30 68.55 11 0.0007 ‐3.15+5cts 16.41 37.47 22.08 10.66 86.62 5cts 5.30 86.62 16 0.0011 ‐2.97+4cts 47.73 38.42 4.09 8.48 98.72 4cts 4.30 98.72 23 0.0015 ‐2.82+3cts 63.35 60.90 30.52 8.89 163.66 3cts 3.30 163.66 50 0.0033 ‐2.498gr 145.88 141.73 41.87 22.98 352.46 2cts 2.30 352.46 153 0.0101 ‐2.006gr 90.55 70.63 29.45 28.06 218.69 1cts 1.30 622.57 479 0.0315 ‐1.505gr 61.29 44.47 11.52 19.43 136.71 0.66cts 0.77 321.60 418 0.0275 ‐1.564gr 95.02 107.33 40.21 24.61 267.17 +11 0.327 1032.29 3157 0.2077 ‐0.683gr 92.26 147.51 45.96 35.87 321.60 +9 0.196 948.16 4830 0.3178 ‐0.50+11 268.34 503.12 142.16 118.67 1032.29 +7 0.123 700.26 5712 0.3758 ‐0.43+9 208.52 540.99 116.35 82.30 948.16 +5 0.069 1306.62 18833 1.2390 0.09+7 142.27 418.18 81.94 57.87 700.26 +3 0.036 418.53 11750 0.7730 ‐0.11+5 237.45 859.36 127.28 82.53 1306.62 ‐3 0.017 55.23 3249 0.2137 ‐0.67

+3 98.75 274.02 29.06 16.70 418.53 6469.38 48706 3.20

‐3 12.75 40.11 0.85 1.52 55.23 Cts/BCM 0.4

Total 1698.96 3470.88 768.93 530.61 6469.38

Gareth Production


*No Crush *No Crush *No Crush

15200 BCM 580000 BCMWeight mss carats Stones St/BCM Log st/BCM ct/BCM Weight mss cts st st/BCM Log st/BCM ct/BCM Weight mss st/BCM Log st/BCM ct/BCMSpec 15.50 198.19 13 0.0008 ‐3.08 0.013 Spec 15.50 2952.85 191 0.00033 ‐3.48 0.005 Spec 15.50 0.00033 ‐3.48 0.0050910cts 10.30 0.00 0 0.0000 0.0000 10cts 10.30 555.09 54 0.00009 ‐4.03 0.0010 10cts 10.30 0.00009 ‐4.03 0.000969cts 9.30 9.67 1 0.0001 ‐4.16 0.0006 9cts 9.30 642.15 69 0.00012 ‐3.92 0.0011 9cts 9.30 0.00012 ‐3.92 0.001118cts 8.30 50.41 6 0.0004 ‐3.40 0.0033 8cts 8.30 935.41 113 0.0002 ‐3.71 0.0016 8cts 8.30 0.00019 ‐3.71 0.001617cts 7.30 35.84 5 0.0003 ‐3.49 0.0024 7cts 7.30 1300.78 178 0.0003 ‐3.51 0.0022 7cts 7.30 0.00031 ‐3.51 0.002246cts 6.30 68.55 11 0.0007 ‐3.15 0.0045 6cts 6.30 1624.63 258 0.0004 ‐3.35 0.003 6cts 6.30 0.00044 ‐3.35 0.002805cts 5.30 86.62 16 0.0011 ‐2.97 0.0057 5cts 5.30 2726.03 514 0.0009 ‐3.05 0.005 5cts 5.30 0.00089 ‐3.05 0.004704cts 4.30 98.72 23 0.0015 ‐2.82 0.0065 4cts 4.30 3821.49 889 0.0015 ‐2.81 0.007 4cts 4.30 0.00153 ‐2.81 0.006593cts 3.30 163.66 50 0.0033 ‐2.49 0.0108 3cts 3.30 6793.71 2,059 0.0035 ‐2.45 0.012 3cts 3.30 0.0035 ‐2.45 0.011712cts 2.30 352.46 153 0.0101 ‐2.00 0.0232 2cts 2.30 13327.93 5,795 0.0100 ‐2.00 0.023 2cts 2.30 0.0100 ‐2.00 0.022981cts 1.30 622.57 479 0.0315 ‐1.50 0.0410 1cts 1.20 29341.28 24,451 0.0422 ‐1.38 0.051 1cts 1.20 0.0422 ‐1.38 0.05059

0.66cts 0.77 321.60 418 0.0275 ‐1.56 0.0212 0.66cts 0.76 16022.08 21,082 0.0363 ‐1.44 0.028 0.66cts 0.76 0.0363 ‐1.44 0.02762+11 0.327 1032.29 3157 0.21 ‐0.68 0.0679 +11 0.332 53790.62 161,797 0.28 ‐0.55 0.093 +11 0.332 0.28 ‐0.55 0.09274+9 0.196 948.16 4830 0.32 ‐0.50 0.0624 +9 0.195 44556.95 228,807 0.39 ‐0.40 0.077 +9 0.195 0.39 ‐0.40 0.07682+7 0.123 700.26 5712 0.38 ‐0.43 0.0461 +7 0.119 30094.99 252,268 0.43 ‐0.36 0.052 +7 0.119 0.43 ‐0.36 0.05189+5 0.069 1306.62 18833 1.24 0.09 0.0860 +5 0.070 45305.95 649,115 1.12 0.05 0.078 +5 0.070 1.24 0.09 0.08648+3 0.036 418.53 11750 0.773 ‐0.11 0.0275 +3 0.038 12278.09 319,351 0.551 ‐0.26 0.021 +3 0.038 1.00 0.00 0.03845‐3 0.017 55.23 3249 0.214 ‐0.67 0.0036 ‐3 0.017 1682.08 98,942 0.171 ‐0.77 0.003 ‐3 0.017 0.70 ‐0.15 0.01190

6469.38 48706 3.20 0.43 267752.1 1,765,932 3.04 0.46 4.14 0.50


0.66cts 0.0276 0.1380 27.81% 0.66cts 0.0276 0.1380 29.89% 0.66cts 0.0212 0.1321 31.04%+11 0.0927 0.2307 46.49% +11 0.0927 0.2307 49.98% +11 0.0679 0.2000 47.00%+9 0.0768 0.3076 61.97% +9 0.0768 0.3076 66.63% +9 0.0624 0.2624 61.66%+7 0.0519 0.3595 72.43% +7 0.0519 0.3595 77.87% +7 0.0461 0.3085 72.48%+5 0.0865 0.4459 89.86% +5 0.0781 0.4376 94.79% +5 0.0860 0.3944 92.68%+3 0.0384 0.4844 97.60% +3 0.0212 0.4587 99.37% +3 0.0275 0.4220 99.15%‐3 0.0119 0.4963 100.00% ‐3 0.0029 0.4616 100.00% ‐3 0.0036 0.4256 100.00%

0.50 0.46 0.43

Resource Model Production Model RIO Historic Mine

Merlin Average ‐ non‐micaceous pipes Resource Model*

Table 9.50: Gareth Grade Model

Gareth Production*

‐4.50

‐4.00

‐3.50

‐3.00

‐2.50

‐2.00

‐1.50

‐1.00

‐0.50

0.00

0.50

Spec 9cts7c

ts5c

ts3c

ts1c

ts +11 +7 +3

Gareth ROM

Merlin Average

Model

Weight Excalibur PalSac Launfal Gawain Ywain Kaye Ector Gareth Bedevere Tristram Weight Excalibur PalSac Launfal Gawain Ywain Kaye Ector Gareth Bedevere TristramSpec 0.0021 0.0059 0.0024 0.002 0.0032 0.0031 0.0028 0.0051 Spec ‐2.6852 ‐2.2270 ‐2.6275 ‐2.7207 ‐2.4902 ‐2.5075 ‐2.5517 ‐2.293210cts 0.0009 0.0009 0.0003 0.0009 0.0015 0.0005 0.0004 0.0010 10cts ‐3.0312 ‐3.0549 ‐3.5854 ‐3.0667 ‐2.8362 ‐3.3258 ‐3.3796 ‐3.01919cts 0.0013 0.0012 0.0008 0.0012 0.0020 0.0006 0.0006 0.0011 9cts ‐2.8907 ‐2.9062 ‐3.1047 ‐2.9262 ‐2.6958 ‐3.2095 ‐3.2309 ‐2.95588cts 0.0013 0.0017 0.0012 0.0012 0.0021 0.0008 0.0008 0.0016 8cts ‐2.8802 ‐2.7669 ‐2.9179 ‐2.9157 ‐2.6852 ‐3.0776 ‐3.0916 ‐2.79247cts 0.0027 0.0020 0.0018 0.0025 0.0042 0.0010 0.0010 0.0022 7cts ‐2.5741 ‐2.6910 ‐2.7521 ‐2.6096 ‐2.3792 ‐3.0184 ‐3.0157 ‐2.64926cts 0.0037 0.0026 0.0029 0.0034 0.0059 0.0011 0.0012 0.0028 6cts ‐2.4269 ‐2.5876 ‐2.5402 ‐2.4623 ‐2.2319 ‐2.9418 ‐2.9123 ‐2.55275cts 0.0054 0.0051 0.0048 0.0049 0.0084 0.0024 0.0024 0.0047 5cts ‐2.2712 ‐2.2900 ‐2.3184 ‐2.3066 ‐2.0762 ‐2.6246 ‐2.6147 ‐2.32794cts 0.0097 0.0066 0.0055 0.0089 0.0152 0.0031 0.0031 0.0066 4cts ‐2.0139 ‐2.1831 ‐2.2564 ‐2.0493 ‐1.8189 ‐2.5080 ‐2.5078 ‐2.18123cts 0.0183 0.0122 0.0113 0.0168 0.0286 0.0057 0.0058 0.0117 3cts ‐1.7383 ‐1.9121 ‐1.9475 ‐1.7737 ‐1.5433 ‐2.2452 ‐2.2369 ‐1.93132cts 0.0372 0.0238 0.0195 0.0343 0.0584 0.0114 0.0113 0.0230 2cts ‐1.4289 ‐1.6229 ‐1.7109 ‐1.4644 ‐1.2339 ‐1.9449 ‐1.9476 ‐1.63871cts 0.0817 0.0565 0.0413 0.0752 0.1279 0.0250 0.0247 0.0506 1cts ‐1.0880 ‐1.2477 ‐1.3843 ‐1.1235 ‐0.8930 ‐1.6018 ‐1.6072 ‐1.2959

0.66cts 0.0416 0.0280 0.0232 0.0496 0.0651 0.0135 0.0135 0.0276 0.66cts ‐1.3812 ‐1.5523 ‐1.6353 ‐1.3047 ‐1.1862 ‐1.8683 ‐1.8712 ‐1.5587+11 0.1431 0.1086 0.0815 0.1545 0.2243 0.0461 0.0447 0.0927 +11 ‐0.8442 ‐0.9643 ‐1.0889 ‐0.8111 ‐0.6493 ‐1.3363 ‐1.3502 ‐1.0327+9 0.1234 0.0704 0.0682 0.1263 0.1933 0.0353 0.0360 0.0768 +9 ‐0.9088 ‐1.1525 ‐1.1661 ‐0.8986 ‐0.7138 ‐1.4516 ‐1.4433 ‐1.1145+7 0.0799 0.0515 0.0445 0.0729 0.1521 0.0235 0.0236 0.0519 +7 ‐1.0972 ‐1.2885 ‐1.3519 ‐1.1370 ‐0.8178 ‐1.6290 ‐1.6265 ‐1.2849+5 0.1039 0.1142 0.0989 0.1567 0.3736 0.0454 0.0368 0.0865 +5 ‐0.9834 ‐0.9425 ‐1.0049 ‐0.8051 ‐0.4276 ‐1.3427 ‐1.4343 ‐1.0631+3 0.0728 0.1499 0.1125 0.0839 0.2938 0.0270 0.0117 0.0384 +3 ‐1.1377 ‐0.8242 ‐0.9488 ‐1.0764 ‐0.5319 ‐1.5691 ‐1.9331 ‐1.4151‐3 0.0272 0.0742 0.0623 0.1234 0.1970 0.0154 0.0018 0.0119 ‐3 ‐1.5654 ‐1.1294 ‐1.2058 ‐0.9086 ‐0.7056 ‐1.8139 ‐2.7435 ‐1.9244

0.76 0.72 0.58 0.92 1.76 0.26 0.22 0.50 0.00 0.00

9.53 NADL Grade Resource Model

ct/BCM Log ct/bcm

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

Spec10

cts 9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66c

ts +11 +9 +7 +5 +3 ‐3

Excalibur

PalSac

Launfal

Gawain

Ywain

Kaye

Gareth

Ector

Weight Excalibur PalSac Launfal Gawain Ywain Kaye Ector Gareth Bedevere Tristram Weight Excalibur PalSac Launfal Gawain Ywain Kaye Ector Gareth Bedevere TristramSpec 0.0021 0.0059 0.0024 0.002 0.0032 0.0031 0.0028 0.0051 Spec ‐2.6852 ‐2.2270 ‐2.6275 ‐2.7207 ‐2.4902 ‐2.5075 ‐2.5517 ‐2.293210cts 0.0009 0.0009 0.0003 0.0009 0.0015 0.0005 0.0004 0.0010 10cts ‐3.0312 ‐3.0549 ‐3.5854 ‐3.0667 ‐2.8362 ‐3.3258 ‐3.3796 ‐3.01919cts 0.0013 0.0012 0.0008 0.0012 0.0020 0.0006 0.0006 0.0011 9cts ‐2.8907 ‐2.9062 ‐3.1047 ‐2.9262 ‐2.6958 ‐3.2095 ‐3.2309 ‐2.95588cts 0.0013 0.0017 0.0012 0.0012 0.0021 0.0008 0.0008 0.0016 8cts ‐2.8802 ‐2.7669 ‐2.9179 ‐2.9157 ‐2.6852 ‐3.0776 ‐3.0916 ‐2.79247cts 0.0027 0.0020 0.0018 0.0025 0.0042 0.0010 0.0010 0.0022 7cts ‐2.5741 ‐2.6910 ‐2.7521 ‐2.6096 ‐2.3792 ‐3.0184 ‐3.0157 ‐2.64926cts 0.0037 0.0026 0.0029 0.0034 0.0059 0.0011 0.0012 0.0028 6cts ‐2.4269 ‐2.5876 ‐2.5402 ‐2.4623 ‐2.2319 ‐2.9418 ‐2.9123 ‐2.55275cts 0.0054 0.0051 0.0048 0.0049 0.0084 0.0024 0.0024 0.0047 5cts ‐2.2712 ‐2.2900 ‐2.3184 ‐2.3066 ‐2.0762 ‐2.6246 ‐2.6147 ‐2.32794cts 0.0097 0.0066 0.0055 0.0089 0.0152 0.0031 0.0031 0.0066 4cts ‐2.0139 ‐2.1831 ‐2.2564 ‐2.0493 ‐1.8189 ‐2.5080 ‐2.5078 ‐2.18123cts 0.0183 0.0122 0.0113 0.0168 0.0286 0.0057 0.0058 0.0117 3cts ‐1.7383 ‐1.9121 ‐1.9475 ‐1.7737 ‐1.5433 ‐2.2452 ‐2.2369 ‐1.93132cts 0.0372 0.0238 0.0195 0.0343 0.0584 0.0114 0.0113 0.0230 2cts ‐1.4289 ‐1.6229 ‐1.7109 ‐1.4644 ‐1.2339 ‐1.9449 ‐1.9476 ‐1.63871cts 0.0817 0.0522 0.0413 0.0752 0.1279 0.0250 0.0247 0.0506 1cts ‐1.0880 ‐1.2824 ‐1.3843 ‐1.1235 ‐0.8930 ‐1.6018 ‐1.6072 ‐1.2959

0.66cts 0.0416 0.0284 0.0232 0.0383 0.0651 0.0135 0.0135 0.0276 0.66cts ‐1.3812 ‐1.5465 ‐1.6353 ‐1.4167 ‐1.1862 ‐1.8683 ‐1.8712 ‐1.5587+11 0.1431 0.0943 0.0815 0.1319 0.2243 0.0444 0.0447 0.0927 +11 ‐0.8442 ‐1.0254 ‐1.0889 ‐0.8797 ‐0.6493 ‐1.3524 ‐1.3502 ‐1.0327+9 0.1234 0.0761 0.0682 0.1137 0.1933 0.0356 0.0360 0.0768 +9 ‐0.9088 ‐1.1185 ‐1.1661 ‐0.9443 ‐0.7138 ‐1.4489 ‐1.4433 ‐1.1145+7 0.0795 0.0499 0.0445 0.0732 0.1245 0.0234 0.0236 0.0519 +7 ‐1.0999 ‐1.3018 ‐1.3519 ‐1.1354 ‐0.9049 ‐1.6316 ‐1.6265 ‐1.2849+5 0.0938 0.0693 0.0553 0.0865 0.1470 0.0332 0.0328 0.0781 +5 ‐1.0276 ‐1.1594 ‐1.2576 ‐1.0631 ‐0.8326 ‐1.4794 ‐1.4841 ‐1.1073+3 0.0195 0.0157 0.0121 0.0180 0.0306 0.0075 0.0074 0.0212 +3 ‐1.7093 ‐1.8049 ‐1.9169 ‐1.7448 ‐1.5143 ‐2.1223 ‐2.1296 ‐1.6743‐3 0.0024 0.0017 0.0014 0.0022 0.0038 0.0008 0.0008 0.0029 ‐3 ‐2.6169 ‐2.7582 ‐2.8686 ‐2.6523 ‐2.4219 ‐3.0760 ‐3.0830 ‐2.5376

0.67 0.45 0.38 0.62 1.05 0.21 0.21 0.46 0.00 0.00

ct/BCM Log ct/bcm

9.54 Production Grade Models

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66cts

+11 +9 +7 +5 +3 ‐3

Excalibur

Gawain

Ywain

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

PalSac

Kaye

Ector

Gareth

Launfal

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

Spec

10cts

9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66cts

+11 +9 +7 +5 +3 ‐3

Launfal

Weight Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth Bedevere Tristram Weight Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth Bedevere TristramSpec 0.0015 0.0049 0.0030 0.0024 0.0109 0.0118 0.0066 0.0033 0.0130 Spec ‐2.8143 ‐2.3139 ‐2.5191 ‐2.6275 ‐1.9628 ‐1.9291 ‐2.1779 ‐2.4802 ‐1.884810cts 0.0008 0.0007 0.0008 0.0003 0.0051 0.0024 0.0011 0.0000 0.00000 10cts ‐3.1209 ‐3.1356 ‐3.1159 ‐3.5854 ‐2.2954 ‐2.6272 ‐2.96239cts 0.0013 0.0008 0.0011 0.0008 0.0016 0.0021 0.0011 0.0000 0.0006 9cts ‐2.8987 ‐3.0987 ‐2.9526 ‐3.1047 ‐2.8002 ‐2.6742 ‐2.9499 ‐3.19648cts 0.0011 0.0012 0.0012 0.0012 0.0040 0.0059 0.0013 0.0006 0.0033 8cts ‐2.9498 ‐2.9147 ‐2.9296 ‐2.9179 ‐2.4005 ‐2.2316 ‐2.8815 ‐3.1909 ‐2.47937cts 0.0025 0.0012 0.0020 0.0018 0.0069 0.0037 0.0010 0.0012 0.0024 7cts ‐2.6002 ‐2.9245 ‐2.7069 ‐2.7521 ‐2.1631 ‐2.4377 ‐2.9972 ‐2.9193 ‐2.62756cts 0.0036 0.0015 0.0022 0.0029 0.0051 0.0101 0.0011 0.0000 0.0045 6cts ‐2.4484 ‐2.8257 ‐2.6525 ‐2.5402 ‐2.2911 ‐1.9940 ‐2.9507 ‐2.34585cts 0.0051 0.0035 0.0039 0.0048 0.0067 0.0146 0.0026 0.0053 0.0057 5cts ‐2.2911 ‐2.4520 ‐2.4093 ‐2.3184 ‐2.1716 ‐1.8365 ‐2.5830 ‐2.2792 ‐2.24424cts 0.0093 0.0047 0.0050 0.0055 0.0151 0.0216 0.0042 0.0038 0.0065 4cts ‐2.0332 ‐2.3251 ‐2.3037 ‐2.2564 ‐1.8215 ‐1.6660 ‐2.3806 ‐2.4245 ‐2.18743cts 0.0177 0.0090 0.0098 0.0113 0.0173 0.0475 0.0051 0.0078 0.0108 3cts ‐1.7521 ‐2.0437 ‐2.0102 ‐1.9475 ‐1.7619 ‐1.3229 ‐2.2966 ‐2.1064 ‐1.96792cts 0.0363 0.0189 0.0178 0.0195 0.0397 0.0824 0.0099 0.0118 0.0232 2cts ‐1.4404 ‐1.7238 ‐1.7497 ‐1.7109 ‐1.4008 ‐1.0839 ‐2.0064 ‐1.9265 ‐1.63471cts 0.0809 0.0433 0.0389 0.0413 0.0756 0.1404 0.0200 0.0253 0.0410 1cts ‐1.0920 ‐1.3632 ‐1.4104 ‐1.3843 ‐1.1217 ‐0.8527 ‐1.6992 ‐1.5972 ‐1.3877

0.66cts 0.0417 0.0230 0.0220 0.0232 0.0345 0.0567 0.0104 0.0129 0.0212 0.66cts ‐1.3800 ‐1.6388 ‐1.6583 ‐1.6353 ‐1.4625 ‐1.2463 ‐1.9839 ‐1.8897 ‐1.6745+11 0.1432 0.0768 0.0700 0.0815 0.1155 0.2130 0.0331 0.0374 0.0679 +11 ‐0.8440 ‐1.1147 ‐1.1549 ‐1.0889 ‐0.9375 ‐0.6716 ‐1.4798 ‐1.4267 ‐1.1680+9 0.1234 0.0606 0.0554 0.0682 0.0850 0.2046 0.0291 0.0296 0.0624 +9 ‐0.9086 ‐1.2177 ‐1.2567 ‐1.1661 ‐1.0703 ‐0.6890 ‐1.5358 ‐1.5283 ‐1.2050+7 0.0788 0.0390 0.0360 0.0445 0.0576 0.1557 0.0195 0.0208 0.0461 +7 ‐1.1034 ‐1.4084 ‐1.4440 ‐1.3519 ‐1.2396 ‐0.8077 ‐1.7093 ‐1.6828 ‐1.3366+5 0.0905 0.0525 0.0476 0.0553 0.0841 0.2674 0.0290 0.0348 0.0860 +5 ‐1.0433 ‐1.2798 ‐1.3221 ‐1.2576 ‐1.0751 ‐0.5729 ‐1.5380 ‐1.4579 ‐1.0657+3 0.0182 0.0109 0.0098 0.0121 0.0200 0.0802 0.0075 0.0122 0.0275 +3 ‐1.7410 ‐1.9632 ‐2.0104 ‐1.9169 ‐1.6983 ‐1.0958 ‐2.1252 ‐1.9151 ‐1.5601‐3 0.0021 0.0012 0.0009 0.0014 0.0034 0.0134 0.0011 0.0018 0.0036 ‐3 ‐2.6717 ‐2.9244 ‐3.0587 ‐2.8686 ‐2.4683 ‐1.8721 ‐2.9428 ‐2.7435 ‐2.4397

0.66 0.35 0.33 0.38 0.59 1.33 0.18 0.21 0.43 0.00 0.00

DTC Sieve Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth Bedevere Tristram+23 0.0035 0.0065 0.0055 0.0059 0.0256 0.0242 0.0083 0.0134 0.0105 DTC Sieve Excalibur Palomides Sacramore Launfal Gawain Ywain Kaye Ector Gareth Bedevere Tristram+21 0.0187 0.0137 0.0163 0.0230 0.0533 0.0606 0.0102 0.0160 0.0156 +23 ‐2.4588 ‐2.1866 ‐2.2594 ‐2.2314 ‐1.5914 ‐1.6156 ‐2.0810 ‐1.8730 ‐1.9783+19 0.0309 0.0235 0.0252 0.0466 0.0436 0.1252 0.0177 0.0227 0.0198 +21 ‐1.7272 ‐1.8640 ‐1.7889 ‐1.6375 ‐1.2735 ‐1.2172 ‐1.9907 ‐1.7965 ‐1.8067+17 0.0231 0.0168 0.0141 0.0178 0.0248 0.0571 0.0091 0.0106 0.0154 +19 ‐1.5106 ‐1.6294 ‐1.5981 ‐1.3316 ‐1.3603 ‐0.9023 ‐1.7523 ‐1.6437 ‐1.7041+15 0.0252 0.0116 0.0117 0.0134 0.0117 0.0436 0.0077 0.0089 0.0105 +17 ‐1.6364 ‐1.7737 ‐1.8515 ‐1.7486 ‐1.6055 ‐1.2432 ‐2.0401 ‐1.9739 ‐1.8121+13 0.0765 0.0375 0.0347 0.0398 0.0532 0.1061 0.0195 0.0220 0.0380 +15 ‐1.5988 ‐1.9368 ‐1.9325 ‐1.8727 ‐1.9316 ‐1.3605 ‐2.1108 ‐2.0504 ‐1.9806+12 0.0507 0.0292 0.0288 0.0282 0.0443 0.0816 0.0131 0.0166 0.0297 +13 ‐1.1165 ‐1.4255 ‐1.4602 ‐1.3998 ‐1.2737 ‐0.9742 ‐1.7102 ‐1.6578 ‐1.4198+11 0.095 0.050 0.045 0.050 0.067 0.154 0.025 0.028 0.054 +12 ‐1.2950 ‐1.5347 ‐1.5401 ‐1.5491 ‐1.3535 ‐1.0881 ‐1.8834 ‐1.7809 ‐1.5265+9 0.119 0.060 0.057 0.057 0.081 0.221 0.030 0.031 0.073 +11 ‐1.0237 ‐1.2994 ‐1.3505 ‐1.2967 ‐1.1716 ‐0.8124 ‐1.6030 ‐1.5593 ‐1.2668+7 0.078 0.040 0.039 0.042 0.061 0.198 0.025 0.023 0.059 +9 ‐0.9262 ‐1.2230 ‐1.2475 ‐1.2433 ‐1.0941 ‐0.6559 ‐1.5181 ‐1.5085 ‐1.1369+5 0.098 0.055 0.049 0.045 0.075 0.281 0.034 0.034 0.079 +7 ‐1.1102 ‐1.4016 ‐1.4076 ‐1.3734 ‐1.2162 ‐0.7032 ‐1.6083 ‐1.6310 ‐1.2302+3 0.017 0.009 0.008 0.007 0.016 0.060 0.011 0.010 0.020 +5 ‐1.0105 ‐1.2606 ‐1.3131 ‐1.3461 ‐1.1233 ‐0.5507 ‐1.4725 ‐1.4654 ‐1.1046‐3 0.001 0.001 0.001 0.000 0.003 0.010 0.002 0.002 0.005 +3 ‐1.7638 ‐2.0316 ‐2.1052 ‐2.1761 ‐1.7870 ‐1.2254 ‐1.9762 ‐2.0048 ‐1.6903

0.64 0.35 0.33 0.38 0.56 1.42 0.21 0.24 0.43 0.00 0.00 ‐3 ‐2.9054 ‐2.9974 ‐3.2235 ‐3.3344 ‐2.5877 ‐2.0180 ‐2.6961 ‐2.6952 ‐2.2991

Table 9.55: Historic Mining Grades

ct/BCM Log ct/bcm

Log ct/bcmct/BCM

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000

Spec10

cts 9cts8c

ts7c

ts6c

ts5c

ts4c

ts3c

ts2c

ts1c

ts0.6

6cts +11 +9 +7 +5 +3 ‐3

Excalibur

Palomides

Launfal

Gawain

Ywain

Kaye

Ector

Gareth

Sacramore

‐4.0000

‐3.5000

‐3.0000

‐2.5000

‐2.0000

‐1.5000

‐1.0000

‐0.5000

0.0000+23 +21 +19 +17 +15 +13 +12 +11 +9 +7 +5 +3 ‐3

Excalibur

Palomides

Sacramore

Launfal

Gawain

Ywain

Kaye

Ector

Gareth

71

10 DIAMOND VALUATIONS 10.1 Introduction Based on the 507,000 carats of diamonds recovered from Merlin during the previous mining operations RIO established that there was no discernable difference in terms of size-frequency distribution or range of qualities for the diamonds recovered from any of the pipes that were mined hence there was a reasonable assumption that there is a single diamond population representative of the entire Merlin diamond field. A reassessment of the available data indicates that there may be a slight difference in the size-frequency distribution between the micaceous pipes Excalibur, Gawain and Ywain and the non-micaceous pipes PalSac, Kaye, Ector and Gareth. The data for Launfal is ambiguous in that it has characteristics of both types of pipes. The slight difference in the size-frequency distributions affects the large stones portion of the profile and hence has considerable influence on the contained value per BCM for the pipes. 10.2 RIO 1999‐2003 Valuations 10.2.1 Valuations The Merlin Diamond production was sized and valued by Argyle diamond sales in Perth prior to dispatch to Antwerp for sale. In Antwerp the parcel was broken up into variety categories for sales purposes Details of the valuation for each pipe, undertaken in Perth for production from September 1999 to January 2002 are shown in Table 10.1. The average value for each size category reflects not only variation in quality but also estimated changing market condition. There is no record of valuation from diamond parcels produced after January 2002 through to closure in mid 2003. However there is a valuation of two relatively small parcels produced from Ywain and Gawain. 10.2.2 Diamond Quality The 1999-2003 production undertaken by Ashton/RIO has provided detail on value distribution as a consequence of colour, quality and size. This is shown in detail in Tables 10.2, 10.3, 10.4, and 10.5. 10.2.3 Sales A summary of the diamond sales completed in the period 1999 to 2003 is shown in Table 10.6.

10.3 NADL 2005/2006 Valuation 10.3.1 Sorthouse Tails Valuation In late 2005, Nick Yiannopoulos valued an 8338.38ct parcel of diamonds recovered from the reprocessing of the sorthouse tailings. Despite the presence of high value yellow diamonds the entire parcel achieved an average value of US$27/ct. This low value is a reflection of the high proportion of smaller diamonds. Details are shown in Table 10.7.

72

Table 10.7: Sorthouse Tails Diamond Valuation Details

Quality Colour US$ Price/ct Weight US$ Value Weight

% Value

% Gem Yellow Fancy $1,454.42 36.80 $53,523 0.4 23.8

Gem/NG White1 $109.18 1,172.59 $128,023 14.1 56.8 Gem/NG Brown1 $60.69 158.23 $9,603 1.9 4.3 Gem/NG White2 $11.54 1226.44 $14,150 14.7 6.3

Ind Brown2 $13.48 597.03 $8,050 7.2 3.6 Ind/NG Brown2 $5.07 1,815.77 $9,203 21.8 4.1

Ind Brown2 $0.79 3,332.12 $2,646 40.0 1.2 TOTAL $27.01 8,338.98 $225,198 100 100

In 2006, the entire parcel of tailings diamonds compising 11,517 carats was valued by both Nick Yiannopolus and Peter Talbot-Ponsonbury. Details are shown in Table 10.8. 10.3.2 Gawain/Ywain ROM Valuation The trial operations undertaken by NADL in 2006 provided 8,225.2 carats of diamonds exclusively from Gawain and Ywain pipes for valuation. They were valued by Peter Talbot-Ponsonbury and Nick Yiannopolous. Details are shown in Table 10.9. 10.3.3 Sales A summary of the diamond sales completed by NADL in the period 2006 to 2007 is shown in Table 10.10. 10.5 NADL 2008 Revaluation Although the diamonds produced in 2006 were sold, the described parcel was able to be revalued by Nick Yiannopolous based on market conditions at the time. Details are shown in Table 10.11. 10.6 NADL 2010 Valuation The trial operations undertaken by NADL in 2009/2010 provided 9,254.23 carats of diamonds from Gawain and Kaye pipes for valuation. The mixed parcel was valued by both Peter Talbot- Ponsonbury and Nick Yiannopolous. Details are shown in Table 10.12. 10.7 Valuation Summary The valuations are compared in Table 10.13. All valuations illustrate the important contribution from the high value large diamonds. However it is important to note that some of the large stone size categories have only one or two data points on which to base the valuation, and hence can have large differences in value between adjacent diamond size categories. 10.7 Value Model A diamond parcel represents a snapshot of the diamond population particularly with respect to the large diamonds. A value model cannot only be based on a grade model and a diamond parcel valuation but it must also factor in quality expectations of the recovered diamonds particularly for the larger less frequently recovered diamonds. This is particularly true of Merlin diamonds with 75% of the value attributed to only 11% of the weight of the recovered diamonds. With few data points in the large diamond population there is risk that any attributed value may not be representative of ROM

73

value. To overcome this issue a detailed analysis of quality and colour distribution amongst the various size categories is necessary.

PRICE PER CARATPPC US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct US$/ct

Pipe Excalibur Palomides Sacramore Launfal Launfal N Gawain Ywain Kaye Ector Gareth Total

Special 1,278.21$ 1,592.74$ 1,234.85$ 1,729.52$ 1,635.72$ 1,517.07$ 615.46$ 456.59$ 643.96$ 455.06$ 1,185.26$

+10cts 1,002.12$ 980.16$ 440.45$ 1,096.81$ 1,827.55$ 1,221.83$ 1,101.20$

+9cts 1,000.87$ 762.64$ 930.04$ 1,429.23$ 2,012.14$ 1,012.50$ 559.22$ 215.00$ 918.03$

+8cts 759.18$ 505.89$ 990.99$ 974.63$ 1,375.98$ 569.45$ 393.42$ 926.02$ 500.00$ 530.02$ 817.36$

+7cts 731.00$ 846.56$ 933.39$ 1,014.28$ 841.83$ 879.11$ 763.11$ 408.14$ 198.54$ 514.37$ 850.05$

+6cts 636.54$ 656.33$ 912.72$ 471.30$ 693.49$ 813.04$ 602.66$ 1,017.57$ -$ 345.79$ 701.39$

+5cts 519.49$ 496.95$ 716.01$ 451.31$ 565.60$ 760.67$ 397.36$ 249.95$ 482.05$ 332.94$ 531.50$

+4cts 389.86$ 473.11$ 453.40$ 544.02$ 511.13$ 248.62$ 343.91$ 312.97$ 211.22$ 403.07$ 447.98$

+3cts 369.56$ 323.18$ 410.40$ 383.15$ 436.59$ 285.06$ 289.97$ 248.69$ 242.20$ 347.72$ 361.67$

8gr 259.32$ 221.89$ 262.48$ 283.15$ 293.06$ 243.64$ 203.16$ 214.98$ 230.21$ 171.57$ 246.86$

6gr 170.28$ 162.48$ 181.96$ 195.31$ 183.22$ 156.52$ 132.64$ 113.44$ 134.64$ 149.71$ 170.44$

5gr 146.47$ 119.10$ 145.89$ 141.04$ 136.11$ 104.51$ 109.12$ 98.98$ 145.19$ 102.49$ 130.16$

4gr 123.38$ 96.98$ 128.44$ 119.01$ 136.56$ 81.21$ 91.77$ 84.00$ 96.71$ 103.61$ 112.46$

3gr 88.21$ 71.82$ 90.58$ 88.20$ 95.52$ 58.37$ 58.76$ 62.33$ 76.52$ 64.93$ 81.40$

+11 52.22$ 45.74$ 52.86$ 53.76$ 54.37$ 41.53$ 39.81$ 41.57$ 47.80$ 36.07$ 49.36$

+9 41.53$ 33.42$ 38.03$ 40.39$ 42.00$ 34.49$ 33.61$ 30.95$ 32.35$ 26.11$ 36.36$

+7 30.96$ 25.23$ 30.97$ 28.42$ 32.45$ 23.33$ 24.83$ 25.03$ 26.16$ 20.86$ 27.76$

+5 21.94$ 15.35$ 18.48$ 20.05$ 19.81$ 18.71$ 17.84$ 13.28$ 15.63$ 10.23$ 17.12$

+3 10.00$ 10.00$ 10.00$ 10.00$ 10.00$ 9.90$ 9.90$ 10.00$ 10.00$ 10.00$ 9.99$

-3 2.63$ 2.98$ 2.99$ 2.48$ 2.80$ 3.00$ 3.00$ 2.97$ 3.00$ 3.00$ 2.89$

Av PPC 96.82$ 105.25$ 122.19$ 112.44$ 121.16$ 146.48$ 83.34$ 102.86$ 89.18$ 82.97$ 111.52$

Table 10.1 : RIO PRODUCTION 1999‐2003

Quality Effect ‐ All sizes have been ignoredVolume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 122 180 77 172 121 85 429 136 186 416 105 32 Z 1,975 4,197 2,929 3,503 3,231 2,047 2,325 3,119 1,637 1,906 1,889 1,707 MB 2,520 6,742 5,131 6,513 6,517 3,612 3,900 4,599 2,648 3,077 2,952 2,133 MBCL 3,085 8,204 7,712 9,128 8,002 3,937 4,695 6,917 4,177 4,629 3,589 3,350 CL 6,863 13,446 14,211 13,782 16,044 7,504 10,694 15,276 6,061 7,570 5,113 6,064 Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 136,039 165,865 45,780 228,123 256,905 143,296 252,929 200,554 291,436 644,180 156,052 8,570 Z 811,391 1,607,554 1,061,741 1,498,975 1,267,795 948,646 876,171 1,157,211 657,099 697,678 680,610 595,710 MB 501,524 1,264,778 938,417 1,214,725 1,022,422 701,063 519,936 751,281 468,335 493,510 435,487 380,672 MBCL 179,136 537,435 514,238 549,675 452,804 243,321 237,187 395,151 233,851 266,101 189,353 183,509 CL 118,705 242,259 235,139 227,360 218,028 107,498 156,535 215,839 86,024 112,346 84,894 95,418 Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$

Price Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1,119.01$ 920.09$ 594.31$ 1,329.31$ 2,121.78$ 1,692.40$ 589.13$ 1,476.18$ 1,567.37$ 1,548.96$ 1,487.91$ 268.39$ Z 410.91$ 383.02$ 362.52$ 427.89$ 392.45$ 463.45$ 376.78$ 371.00$ 401.29$ 366.11$ 360.29$ 349.05$ MB 198.98$ 187.60$ 182.91$ 186.50$ 156.90$ 194.07$ 133.31$ 163.36$ 176.89$ 160.37$ 147.52$ 178.45$ MBCL 58.06$ 65.51$ 66.68$ 60.22$ 56.59$ 61.80$ 50.52$ 57.13$ 55.98$ 57.49$ 52.75$ 54.78$ CL 17.30$ 18.02$ 16.55$ 16.50$ 13.59$ 14.32$ 14.64$ 14.13$ 14.19$ 14.84$ 16.60$ 15.73$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1% 1% 0% 1% 0% 0% 2% 0% 1% 2% 1% 0%Z 14% 13% 10% 11% 10% 12% 11% 10% 11% 11% 14% 13%MB 17% 21% 17% 20% 19% 21% 18% 15% 18% 17% 22% 16%MBCL 21% 25% 26% 28% 24% 23% 21% 23% 28% 26% 26% 25%CL 47% 41% 47% 42% 47% 44% 49% 51% 41% 43% 37% 46%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 9.34$ 5.06$ 1.52$ 6.89$ 7.58$ 8.34$ 11.47$ 6.67$ 19.81$ 36.61$ 11.43$ 0.65$ Z 55.71$ 49.06$ 35.32$ 45.29$ 37.38$ 55.20$ 39.75$ 38.51$ 44.67$ 39.65$ 49.87$ 44.84$ MB 34.43$ 38.60$ 31.22$ 36.70$ 30.15$ 40.79$ 23.59$ 25.00$ 31.84$ 28.04$ 31.91$ 28.65$ MBCL 12.30$ 16.40$ 17.11$ 16.61$ 13.35$ 14.16$ 10.76$ 13.15$ 15.90$ 15.12$ 13.87$ 13.81$ CL 8.15$ 7.39$ 7.82$ 6.87$ 6.43$ 6.26$ 7.10$ 7.18$ 5.85$ 6.38$ 6.22$ 7.18$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

TABLE 10.2: RIO 1999-2003 - All Pipes by Quality

Colour Effect ‐ All sizes have been ignoredVolume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 122 180 77 172 121 85 429 136 186 416 105 32 White 7,135 18,273 18,699 18,968 21,742 10,235 10,453 15,622 6,953 7,124 7,493 6,922 Col'd 912 2,502 2,123 2,987 1,828 862 1,134 1,941 1,375 1,628 1,446 1,075 Brn 6,397 11,815 9,160 10,970 10,223 6,004 10,027 12,349 6,196 8,430 4,605 5,257 Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 136,039 165,865 45,780 228,123 256,905 143,296 252,929 200,554 291,436 644,180 156,052 8,570 White 1,143,822 2,564,974 1,979,555 2,410,861 2,217,465 1,490,686 1,189,312 1,711,074 883,421 963,065 863,052 753,198 Col'd 298,047 735,855 551,965 766,295 493,652 322,608 312,757 519,306 373,783 370,615 382,181 362,139 Brn 168,888 351,197 218,016 313,580 249,931 187,233 287,759 289,101 188,106 235,956 145,112 139,973 Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$

Price Nov-99 Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02Spec 1,119.01$ 920.09$ 594.31$ 1,329.31$ 2,121.78$ 1,692.40$ 589.13$ 1,476.18$ 1,567.37$ 1,548.96$ 1,487.91$ 268.39$ White 160.31$ 140.37$ 105.86$ 127.10$ 101.99$ 145.64$ 113.78$ 109.53$ 127.06$ 135.20$ 115.18$ 108.81$ Col'd 326.76$ 294.08$ 260.00$ 256.50$ 270.08$ 374.28$ 275.74$ 267.61$ 271.84$ 227.71$ 264.36$ 336.86$ Brn 26.40$ 29.72$ 23.80$ 28.58$ 24.45$ 31.19$ 28.70$ 23.41$ 30.36$ 27.99$ 31.51$ 26.63$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 1% 1% 0% 1% 0% 0% 2% 0% 1% 2% 1% 0%White 49% 56% 62% 57% 64% 60% 47% 52% 47% 40% 55% 52%Col'd 6% 8% 7% 9% 5% 5% 5% 6% 9% 9% 11% 8%Brn 44% 36% 30% 33% 30% 35% 45% 41% 42% 48% 34% 40%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02Spec 9.34$ 5.06$ 1.52$ 6.89$ 7.58$ 8.34$ 11.47$ 6.67$ 19.81$ 36.61$ 11.43$ 0.65$ White 78.53$ 78.27$ 65.86$ 72.84$ 65.39$ 86.74$ 53.95$ 56.95$ 60.06$ 54.73$ 63.23$ 56.69$ Col'd 20.46$ 22.46$ 18.36$ 23.15$ 14.56$ 18.77$ 14.19$ 17.28$ 25.41$ 21.06$ 28.00$ 27.26$ Brn 11.60$ 10.72$ 7.25$ 9.47$ 7.37$ 10.89$ 13.05$ 9.62$ 12.79$ 13.41$ 10.63$ 10.54$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$

TABLE 10.3 : RIO 1999-2003 All Pipes by Colour

Volume Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 3,605 2,660 ‐ ‐ 825 8,185 5,521 3,973 7,457 1,608 4,332 2,651 5,341 55 ‐ ‐ Palomides 8,416 3,429 ‐ 272 ‐ ‐ ‐ 15,839 6,973 9,801 104 2,807 12,899 67 ‐ ‐ Excalibur ‐ 26,681 30,059 21,368 21,154 271 6,371 10,067 225 ‐ ‐ ‐ ‐ ‐ ‐ ‐ Kay ‐ ‐ ‐ ‐ ‐ ‐ 5,150 81 55 1,453 906 ‐ ‐ 1,796 ‐ ‐ Gareth ‐ ‐ ‐ ‐ ‐ 1,699 3,471 ‐ ‐ 769 ‐ 531 16,590 5,166 ‐ ‐ Launfal 2,544 ‐ ‐ 8,088 2,907 3,909 ‐ ‐ ‐ ‐ 4,525 4,331 99 ‐ ‐ ‐ Launfal North - - - 3,371 3,227 2,438 - - - - 2,512 2,149 - - - - Ywain - - - - - 393 - - - - - - - - - 5,681 Gawain - - - - - - - - - 311 - - - - 3,623 - Ector - - - - - - 1,458 - - 1,088 - - 3,378 7,945 - - Tailings(MR) - - - - 5,800 291 73 88 - 2,567 1,271 818 2,485 7,097 - - Total 14,565 32,770 30,059 33,098 33,914 17,186 22,043 30,047 14,710 17,597 13,649 13,286 40,793 22,126 3,623 5,681

Value Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 628,775 323,667 - - 192,885 889,114 593,904 453,161 985,873 176,361 468,388 290,201 521,359 1,899 - - Palomides 753,902 423,501 - 54,783 - - - 1,432,635 738,751 1,364,977 7,032 259,993 987,377 1,638 - - Excalibur - 3,070,723 2,795,316 2,472,535 1,990,977 62,546 516,159 811,258 8,187 - - - - - - - Kay - - - - - - 576,740 2,341 3,934 196,770 70,931 - - 102,104 - - Gareth - - - - - 306,770 194,430 - - 54,681 - 33,016 1,158,595 221,120 - - Launfal 364,118 - - 588,413 260,456 542,481 - - - - 700,051 474,043 3,041 - - - Launfal North - - - 603,128 503,849 231,313 - - - - 227,260 152,735 - - - - Ywain - - - - - 13,924 - - - - - - - - - 473,456 Gawain - - - - - - - - - 24,916 - - - - 530,767 - Ector - - - - - - 119,527 - - 119,109 - - 285,317 841,660 - - Tailings(MR) - - - - 269,787 97,676 41,998 20,641 - 277,003 72,737 53,891 179,908 608,903 - - Total 1,746,795$ 3,817,891$ 2,795,316$ 3,718,858$ 3,217,954$ 2,143,823$ 2,042,758$ 2,720,035$ 1,736,746$ 2,213,816$ 1,546,397$ 1,263,879$ 3,135,597$ 1,777,325$ 530,767$ 473,456$

Price Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 174.41$ 121.67$ -$ -$ 233.83$ 108.63$ 107.58$ 114.06$ 132.22$ 109.66$ 108.14$ 109.48$ 97.61$ 34.22$ -$ -$ Palomides 89.57$ 123.51$ -$ 201.65$ -$ -$ -$ 90.45$ 105.94$ 139.27$ 67.83$ 92.62$ 76.54$ 24.57$ -$ -$ Excalibur -$ 115.09$ 92.99$ 115.71$ 94.12$ 231.20$ 81.02$ 80.59$ 36.47$ -$ -$ -$ -$ -$ -$ -$ Kay -$ -$ -$ -$ -$ -$ 111.98$ 29.02$ 71.31$ 135.46$ 78.26$ -$ -$ 56.85$ -$ -$ Gareth -$ -$ -$ -$ -$ 180.56$ 56.02$ -$ -$ 71.11$ -$ 62.22$ 69.84$ 42.80$ -$ -$ Launfal 143.13$ -$ -$ 72.75$ 89.59$ 138.77$ -$ -$ -$ -$ 154.71$ 109.46$ 30.83$ -$ -$ -$ Launfal North -$ -$ -$ 178.92$ 156.14$ 94.88$ -$ -$ -$ -$ 90.48$ 71.09$ -$ -$ -$ -$ Ywain -$ -$ -$ -$ -$ 35.39$ -$ -$ -$ -$ -$ -$ -$ -$ -$ 83.34$ Gawain -$ -$ -$ -$ -$ -$ -$ -$ -$ 80.06$ -$ -$ -$ -$ 146.48$ -$ Ector -$ -$ -$ -$ -$ -$ 82.00$ -$ -$ 109.48$ -$ -$ 84.47$ 105.94$ -$ -$ Tailings(MR) -$ -$ -$ -$ 46.51$ 335.94$ 572.57$ 235.04$ -$ 107.90$ 57.24$ 65.86$ 72.39$ 85.80$ -$ -$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$ 76.87$ 80.33$ 146.50$ -$

% Weight Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 25% 8% 0% 0% 2% 48% 25% 13% 51% 9% 32% 20% 13% 0% 0% 0%Palomides 58% 10% 0% 1% 0% 0% 0% 53% 47% 56% 1% 21% 32% 0% 0% 0%Excalibur 0% 81% 100% 65% 62% 2% 29% 34% 2% 0% 0% 0% 0% 0% 0% 0%Kay 0% 0% 0% 0% 0% 0% 23% 0% 0% 8% 7% 0% 0% 8% 0% 0%Gareth 0% 0% 0% 0% 0% 10% 16% 0% 0% 4% 0% 4% 41% 23% 0% 0%Launfal 17% 0% 0% 24% 9% 23% 0% 0% 0% 0% 33% 33% 0% 0% 0% 0%Launfal North 0% 0% 0% 10% 10% 14% 0% 0% 0% 0% 18% 16% 0% 0% 0% 0%Ywain 0% 0% 0% 0% 0% 2% 0% 0% 0% 0% 0% 0% 0% 0% 0% 100%Gawain 0% 0% 0% 0% 0% 0% 0% 0% 0% 2% 0% 0% 0% 0% 100% 0%Ector 0% 0% 0% 0% 0% 0% 7% 0% 0% 6% 0% 0% 8% 36% 0% 0%Tailings(MR) 0% 0% 0% 0% 17% 2% 0% 0% 0% 15% 9% 6% 6% 32% 0% 0%Total 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Contribution Nov‐99 Feb‐00 Mar‐00 Jun‐00 Aug‐00 Sep‐00 Nov‐00 Feb‐01 May‐01 Oct‐01 Dec‐01 Jan‐02 Apr‐02 Dec‐02 GW Spec Val YW Spec ValSacramore 43.17$ 9.88$ -$ -$ 5.69$ 51.74$ 26.94$ 15.08$ 67.02$ 10.02$ 34.32$ 21.84$ 12.78$ 0.09$ -$ -$ Palomides 51.76$ 12.92$ -$ 1.66$ -$ -$ -$ 47.68$ 50.22$ 77.57$ 0.52$ 19.57$ 24.20$ 0.07$ -$ -$ Excalibur -$ 93.70$ 92.99$ 74.70$ 58.71$ 3.64$ 23.42$ 27.00$ 0.56$ -$ -$ -$ -$ -$ -$ -$ Kay -$ -$ -$ -$ -$ -$ 26.16$ 0.08$ 0.27$ 11.18$ 5.20$ -$ -$ 4.61$ -$ -$ Gareth -$ -$ -$ -$ -$ 17.85$ 8.82$ -$ -$ 3.11$ -$ 2.48$ 28.40$ 9.99$ -$ -$ Launfal 25.00$ -$ -$ 17.78$ 7.68$ 31.57$ -$ -$ -$ -$ 51.29$ 35.68$ 0.07$ -$ -$ -$ Launfal North -$ -$ -$ 18.22$ 14.86$ 13.46$ -$ -$ -$ -$ 16.65$ 11.50$ -$ -$ -$ -$ Ywain -$ -$ -$ -$ -$ 0.81$ -$ -$ -$ -$ -$ -$ -$ -$ -$ 83.34$ Gawain -$ -$ -$ -$ -$ -$ -$ -$ -$ 1.42$ -$ -$ -$ -$ 146.50$ -$ Ector -$ -$ -$ -$ -$ -$ 5.42$ -$ -$ 6.77$ -$ -$ 6.99$ 38.04$ -$ -$ Tailings(MR) -$ -$ -$ -$ 7.96$ 5.68$ 1.91$ 0.69$ -$ 15.74$ 5.33$ 4.06$ 4.41$ 27.52$ -$ -$ Total 119.93$ 116.51$ 92.99$ 112.36$ 94.89$ 124.74$ 92.67$ 90.53$ 118.07$ 125.80$ 113.30$ 95.13$ 76.87$ 80.33$ 146.50$ 83.34$

TABLE 10.4: Pipes by Sale

% Weight Contribution by PipeSept '99 - Jan '02



Launfal North - - - - - 10.2% 9.5% 14.2% - - - - 18.4% 16.2%Ywain - - - - - - - 2.3% - - - - - -Ector - - - - - - - - 6.6% - - 6.2% - -


% Value Contribution by PipeSept '99 - Jan '02



Launfal North - - - - 17.0% 14.9% 10.6% - - - - 15.0% 12.8%Ywain - - - - - - - 0.6% - - - - - -Ector - - - - - - - - 5.6% - - 5.4% - -


Average $/ct by Pipe(Actual Prices inc.RSVP on Specials)

Sept '99 - Jan '02

Sep-99 Oct-99 Nov-99 Feb-00 Mar-00 Jun-00 Aug-00 Sep-00 Nov-00 Feb-01 May-01 Oct-01 Dec-01 Jan-02Average

Total/PipeSacramore 156.23 142.66 167.72 124.45 - - 229.76 101.65 104.77 102.85 125.40 111.30 102.28 102.19 122.19Palomides - 144.51 91.63 118.96 - 141.89 - - - 84.11 105.81 138.77 68.06 96.58 105.25Excalibur - - - 111.86 90.30 109.31 88.69 225.47 74.99 78.57 41.30 - - - 96.82

Kay 77.29 - - - - - - - 114.79 24.36 76.40 130.01 79.89 - 102.86Gareth - 39.95 - - - - - 160.74 51.27 - - 66.63 - 65.00 80.27Launfal 149.72 - 121.85 - - 72.35 91.34 126.92 - - - - 152.57 100.82 112.44

Launfal North - - - - - 179.37 143.23 85.56 - - - - 90.34 73.11 143.70Ywain - - - - - - - 32.45 - - - - - - 32.45Ector - - - - - - - - 75.27 - - 107.83 - - 89.18

Tailings(MR) 118.18 - - - - - 52.02 282.77 526.68 227.27 - 97.40 56.21 67.35 78.68Gwain - - - - - - - - - - - 82.51 - - 82.51

Shipment $/ct 133.15 136.21 115.74 113.63 90.30 107.68 91.29 114.39 89.53 84.99 114.65 123.44 110.72 92.23 104.97

TABLE 10.5 Merlin Summary

Approximate CumulativeDATE IN EXCALIBUR PALOMIDES SACRAMORE LAUNFAL LAUNFAL NTH GAWAIN YWAIN KAYE ECTOR GARETH TAILS Sale Volume Sales VolumeADS#1 ‐ May 99 347.28 5367.26 5783.13 11497.67 11497.67ADS#2 ‐ 7 June 1999 0 3902.41 3825.82 7728.23 19225.9ADS#3 ‐ 14 July 1999 5443.43 4559.03 1960.2 1484.01 13446.67 32672.57ADS#4 ‐ Sept / Oct 1999 0 0 4133.51 4814.24 0 0 48.58 2826.19 0 794.3 12616.82 45289.39ADS#5 ‐ Nov / Dec 1999 0 10474.49 7201.95 2727.34 0 0 0 0 0 433.84 0 20837.62 66127.01ADS#6 ‐ 28 Feb 2000 26682.38 3429.99 2660.05 0 0 0 0 0 0 0 32772.42 98899.43ADS#7 ‐ 8 May 2000 30061.07 0 0 0 0 0 0 0 0 0 30061.07 128960.5ADS#8 ‐ 12 July 2000 21322.09 271.3 0 8088.36 3365.67 0 0 0 0 0 33047.42 162007.92ADS#9 ‐ 23 Aug 2000 21154.7 0 831.44 2908.07 3227.13 0 0 0 0 5801.3 33922.64 195930.56ADS#10 ‐ 2 Oct 2000 384.56 0 10555.95 3910.18 2438.76 0 393.48 0 1731.95 290.66 19705.54 215636.1ADS#11 ‐ 29 Nov 2000 6256.11 0 3151.49 0 0 0 0 5152.61 1456.61 3440.7 73.36 19530.88 235166.98ADS#12 ‐ 2001 10068.46 15840.96 3973.89 0 0 0 0 80.73 0 0 88.06 30052.1 265219.08ADS#13 ‐ 2001 224.78 6978.94 7459.65 0 0 0 0 55.49 0 0 0 14718.86 279937.94ADS#14 ‐ 2001 0 9772.91 368.77 0 0 311.44 0 1256.82 1088.45 769.45 1773.03 15340.87 295278.81ADS#15 ‐ 2001 0 133.62 5570.8 4524.16 2512.17 0 0 1103.89 0 0 2066.78 15911.42 311190.23ADS#16 ‐ 2002 2808.83 2651.8 4332.51 2149.52 0 0 0 529.91 818.76 13291.33 324481.56ADS#17 ‐ 2002 0 12902.05 5338.79 99.51 0 0 0 0 3336.24 14551.21 1369.06 37596.86 362078.42ADS#18 ‐ 2002 0 66.73 55.65 0 0 0 0 1796.14 7990.8 7210.99 8216.67 25336.98 387415.4ADS#19 ‐ 2003 874.1 434.61 2660.33 21507.88 4485.01 35492.67 6165.55 8092.83 5184.5 18273.9 16849.5 120020.88 507436.28

122818.96 67016.84 61981.33 67080.23 18178.26 35804.11 8567.81 20364.7 19056.6 46941.95 39625.49 507436.28

TABLE 10.6: DIAMOND EXPORTS 1999 - 2003

Tail 2005 NG/Ind PTP Diamdel Tail 2006 PTP Diamdel

DTC Size Total W PPC Value PPC Value Total PPC Value PPC Value

Size stones carats US$ US$ US$ US$ stones carats US$ US$ US$ US$

Special 1 17.19 200.00$ 3,437$ 200.00$ 3,437.4$

+10cts

9cts

+8cts 1 8.74 450.00$ 3,933$ 420.00$ 3,671.2$

+7cts

+6cts 1 6.07 10.00$ 61$ 2.00$ 12.13$

+5cts 1 5.41 1.00$ 5$ 2.00$ 10.82$

+4cts 3 13.20 5.00$ 66$ 2.00$ 26.39$ 3 12.20 125.00$ 1,524$ 64.37$ 785.0$

+3cts 8 24.88 4.50$ 112$ 2.00$ 49.76$ 2 6.96 140.00$ 974$ 50.37$ 350.4$

+10gr 7 19.30 4.50$ 87$ 2.00$ 38.60$ 2 5.23 300.00$ 1,568$ 101.26$ 529.2$

+8gr 25 51.65 4.50$ 232$ 2.00$ 103.30$ 4 9.07 190.00$ 1,723$ 93.60$ 848.7$

+6gr 25 40.86 3.80$ 155$ 6.04$ 246.85$ 12 19.00 80.00$ 1,520$ 58.06$ 1,103.3$

+5gr 35 45.58 3.80$ 173$ 5.74$ 261.68$ 7 9.55 30.00$ 286$ 24.52$ 234.0$

+4gr 85 88.87 3.80$ 338$ 3.62$ 321.73$ 21 21.36 55.00$ 1,175$ 29.15$ 622.7$

+3gr 163 125.85 3.10$ 390$ 5.16$ 649.87$ 25 19.46 35.00$ 681$ 21.55$ 419.5$

+11 1,988 703.22 15.80$ 11,111$ 7.82$ 5,500.38$ 361 127.69 25.00$ 3,192$ 21.19$ 2,706.2$

+9 5,617 1,107.21 13.70$ 15,169$ 8.20$ 9,084.58$ 964 190.04 13.00$ 2,470$ 15.43$ 2,931.3$

+7 12,604 1,642.37 11.50$ 18,887$ 6.14$ 10,085.11$ 1,532 199.63 14.00$ 2,795$ 7.54$ 1,504.7$

+5 58,709 3,927.36 7.70$ 30,241$ 3.80$ 14,907.64$ 7,184 480.58 10.00$ 4,806$ 6.34$ 3,049.2$

+3 42,212 1,755.17 4.60$ 8,074$ 3.51$ 6,163.84$ 5,730 238.26 4.00$ 953$ 4.15$ 988.6$

+1 34,860 511.20 1.50$ 767$ 2.40$ 1,225.82$ 5,744 84.23 1.00$ 84$ 2.45$ 206.6$

Total 156,342 10,068.20 8.53$ 85,868$ 4.84$ 48,688.52$ 21,593 1,449.16 21.48$ 31,123$ 16.14$ 23,388.2$

Summary Diamdel PTP Diamdel/ Diamdel - Nick

Parcel Weight Value PPC Value PPC PTP Weight Value PPCName carats US$ US$ US$ US$ % carats US$ US$

Tail 2005 10,068 48,689$ 4.84$ 85,868$ 8.53$ 57% 10,068.20 48,689$ 4.84$

Tail 2006 1,449 23,388$ 16.14$ 31,123$ 21.48$ 75% 1,446.12 17,355$ 12.00$

Total 11,517 72,077$ 6.26$ 116,991$ 10.16$ 62% 11,514.32 66,044$ 5.74$

Table 10.8: Valuation of Sorthouse Tails Diamonds

Carats Gawain Ywain Total PPC Gawain Ywain Total Value Gawain Ywain Total Weight Carats Value PPC

Specials 14.598 17.19 31.79 Specials 2,500.00$ 2,013.00$ 2,236.64$ Specials 36,495$ 34,603$ 71,098$ Specials 31.79 71,098$ 2,236.64$ 10cts 10.60 10.54 21.14 10cts 14,450.00$ 2,013.00$ 8,249.15$ 10cts 153,170$ 21,217$ 174,387$ 10ct 21.14 174,387$ 8,249.15$ 9cts 19.58 8.95 28.53 9cts 3,390.81$ 800.00$ 2,578.00$ 9cts 66,392$ 7,161$ 73,553$ 9ct 28.53 73,553$ 2,578.00$ 8cts 32.20 8.73 40.93 8cts 1,911.41$ 783.00$ 1,670.73$ 8cts 61,546$ 6,836$ 68,381$ 8ct 40.93 68,381$ 1,670.73$ 7cts 7.33 - 7.33 7cts 1,800.00$ 1,800.00$ 7cts 13,198$ -$ 13,198$ 7ct 7.33 13,198$ 1,800.00$ 6cts 32.32 19.75 52.07 6cts 1,247.87$ 1,440.11$ 1,320.79$ 6cts 40,331$ 28,445$ 68,776$ 6ct 52.07 68,776$ 1,320.79$ 5cts 67.26 15.66 82.93 5cts 1,695.01$ 219.29$ 1,416.27$ 5cts 114,011$ 3,435$ 117,446$ 5ct 82.93 117,446$ 1,416.27$ 4cts 70.83 60.07 130.90 4cts 702.49$ 1,077.96$ 874.80$ 4cts 49,757$ 64,756$ 114,513$ 4ct 130.90 114,513$ 874.80$ 3cts 146.88 68.01 214.89 3cts 581.89$ 549.29$ 571.57$ 3cts 85,467$ 37,359$ 122,827$ 3ct 214.89 122,827$ 571.57$

10GR 52.80 17.89 70.69 10GR 444.53$ 544.35$ 469.80$ 10GR 23,469$ 9,741$ 33,210$ 2cts 372.77 145,423$ 841.26$ 8GR 209.32 92.76 302.08 8GR 408.11$ 288.76$ 371.46$ 8GR 85,428$ 26,785$ 112,213$ 1cts 814.62 125,731$ 495.45$ 6GR 130.64 30.32 160.95 6GR 211.89$ 219.00$ 213.23$ 6GR 27,681$ 6,639$ 34,320$ 0.66cts 352.91 36,087$ 102.25$ 5GR 186.56 119.49 306.05 5GR 162.05$ 159.45$ 161.03$ 5GR 30,231$ 19,052$ 49,284$ 11 1,388.85 75,987$ 54.71$ 4GR 257.23 90.39 347.62 4GR 119.20$ 126.85$ 121.19$ 4GR 30,661$ 11,466$ 42,127$ 9 1,149.27 57,540$ 50.07$ 3GR 243.11 109.80 352.91 3GR 107.80$ 89.98$ 102.25$ 3GR 26,206$ 9,880$ 36,087$ 7 872.17 32,916$ 37.74$

11DTC 988.31 400.54 1,388.85 11DTC 53.86$ 56.82$ 54.71$ 11DTC 53,227$ 22,760$ 75,987$ 5 1,626.58 52,654$ 32.37$ 9DTC 770.43 378.83 1,149.27 9DTC 51.61$ 46.92$ 50.07$ 9DTC 39,765$ 17,776$ 57,540$ 3 643.74 12,470$ 19.37$ 7DTC 552.26 319.90 872.17 7DTC 37.79$ 37.65$ 37.74$ 7DTC 20,872$ 12,045$ 32,916$ -3 393.78 3,366$ 8.55$ 5DTC 991.81 634.77 1,626.58 5DTC 33.92$ 29.95$ 32.37$ 5DTC 33,640$ 19,014$ 52,654$ 8225.20084 1366353.67 166.12 3DTC 361.88 281.87 643.74 3DTC 19.90$ 18.70$ 19.37$ 3DTC 7,200$ 5,270$ 12,470$ -3DTC 228.03 165.75 393.78 -3DTC 8.30$ 8.89$ 8.55$ -3DTC 1,893$ 1,474$ 3,366$ Total 5,373.98 2,851.22 8,225.20 Total 186.20$ 128.27$ 166.12$ Total 1,000,640$ 365,714$ 1,366,354$

Table 10.9: 2006 NADL Valuation

KimbTails Kimb ROM Sorthouse/Mix Misc TotalOctober 0

2005 November 12108 0 0 12108 12108December 88.24 0 88.24 88.24January 0 0 0 0 0

2006 February 6.97 0.79 6.18 0 6.97March 174.97 4.8 40.28 128.83 1.06 174.97April 357.17 114.12 80.7 140.17 22.18 357.17May 1526.24 Israel 108.61 284.35 1108.96 24.32 1526.24June 156.32 53.28 10.77 92.26 156.31July 923.92 96.91 765.84 61.17 923.92

August 969.5 United Kingdom 130.06 839.44 0 969.5September 2281.78 0 2076.67 205.11 2281.78October 3211.36 Antwerp (5116 cts) 0 2858.12 345.44 7.8 3211.36November 2203.37 Knightsbridge (38.49 cts) 0 2193.21 10.16 2203.37December 0 0 0January 0 Antwerp (3706.52cts) 0 0

2007 February 0 Knightsbridge (37.82 cts) 0 0March 0 0 0April 0 Rio(2754.37cts) 0 0May 0 Biddlecombe(6.518cts) 0 0June 0 0 0

Total carats 24007.84 277.92 Stocks on hand 508.57 9155.56 14288.34 55.36 24007.83Total 24007.84

Q2 2760.89

Q3 10068.2

Q4 5154.49

Q1 3744.34

Source of Diamonds

Q3 0

Q1 0

Q2 2002

Table 10.10: Summary of NADL Sales 2006/2007

Carats

Year Qtr Month Produced Sold Buyer

2008Carats Gawain Ywain Total PPC Gawain Ywain Total Value Gawain Ywain Total Weight Carats Value PPC

Specials 14.598 17.19 31.79 Specials 2,875.00$ 2,400.00$ 2,618.13$ Specials 41,969$ 41,256$ 83,225$ Specials 31.79 83,225$ 2,618.13$

10cts 10.60 10.54 21.14 10cts 28,000.00$ 2,400.00$ 15,236.33$ 10cts 296,800$ 25,296$ 322,096$ 10ct 21.14 322,096$ 15,236.33$

9cts 19.58 8.95 28.53 9cts 4,019.06$ 920.00$ 3,046.80$ 9cts 78,693$ 8,235$ 86,928$ 9ct 28.53 86,928$ 3,046.80$

8cts 32.20 8.73 40.93 8cts 2,292.45$ 900.45$ 1,995.54$ 8cts 73,815$ 7,861$ 81,676$ 8ct 40.93 81,676$ 1,995.54$

7cts 7.33 - 7.33 7cts 2,100.00$ 2,100.00$ 7cts 15,397$ -$ 15,397$ 7ct 7.33 15,397$ 2,100.00$

6cts 32.32 19.75 52.07 6cts 1,590.67$ 1,709.09$ 1,635.59$ 6cts 51,411$ 33,758$ 85,168$ 6ct 52.07 85,168$ 1,635.59$

5cts 67.26 15.66 82.93 5cts 2,021.84$ 255.49$ 1,688.21$ 5cts 135,995$ 4,002$ 139,996$ 5ct 82.93 139,996$ 1,688.21$

4cts 70.83 60.07 130.90 4cts 838.33$ 1,295.31$ 1,048.04$ 4cts 59,379$ 77,813$ 137,192$ 4ct 130.90 137,192$ 1,048.04$

3cts 146.88 68.01 214.89 3cts 686.52$ 638.25$ 671.25$ 3cts 100,836$ 43,410$ 144,246$ 3ct 214.89 144,246$ 671.25$

10GR 52.80 17.89 70.69 10GR 515.43$ 608.07$ 538.88$ 10GR 27,213$ 10,881$ 38,094$ 2cts 372.77 164,592$ 441.53$

8GR 209.32 92.76 302.08 8GR 460.60$ 324.33$ 418.75$ 8GR 96,414$ 30,085$ 126,498$ 1cts 814.62 138,300$ 169.77$

6GR 130.64 30.32 160.95 6GR 233.08$ 240.90$ 234.55$ 6GR 30,449$ 7,303$ 37,752$ 0.66cts 352.91 39,694$ 112.48$

5GR 186.56 119.49 306.05 5GR 178.24$ 175.38$ 177.12$ 5GR 33,252$ 20,956$ 54,208$ 11 1,388.85 86,424$ 62.23$

4GR 257.23 90.39 347.62 4GR 131.11$ 139.54$ 133.30$ 4GR 33,726$ 12,613$ 46,339$ 9 1,149.27 65,509$ 57.00$

3GR 243.11 109.80 352.91 3GR 118.58$ 98.97$ 112.48$ 3GR 28,827$ 10,867$ 39,694$ 7 872.17 36,207$ 41.51$

11DTC 988.31 400.54 1,388.85 11DTC 60.97$ 65.33$ 62.23$ 11DTC 60,254$ 26,169$ 86,424$ 5 1,626.58 57,921$ 35.61$

9DTC 770.43 378.83 1,149.27 9DTC 58.50$ 53.95$ 57.00$ 9DTC 45,070$ 20,438$ 65,509$ 3 643.74 14,046$ 21.82$

7DTC 552.26 319.90 872.17 7DTC 41.57$ 41.41$ 41.51$ 7DTC 22,958$ 13,249$ 36,207$ -3 393.78 8,094$ 20.56$

5DTC 991.81 634.77 1,626.58 5DTC 37.31$ 32.95$ 35.61$ 5DTC 37,003$ 20,918$ 57,921$ 8225.20084 1706711.51 207.50

3DTC 361.88 281.87 643.74 3DTC 21.82$ 21.82$ 21.82$ 3DTC 7,896$ 6,150$ 14,046$

-3DTC 228.03 165.75 393.78 -3DTC 20.56$ 20.56$ 20.56$ -3DTC 4,687$ 3,407$ 8,094$

Total 5,373.98 2,851.22 8,225.20 Total 207.50$ Total 1,282,045$ 424,666$ 1,706,712$

Table 10.11: 2008 NADL Valuation

NADL 2010 PRICES (mixed parcel)Weight Carats Log value PPC Log

Spec 78.78 1.896 679,782$ 8,629$ 3.936

10cts 10.77 1.032 126,924$ 11,785$ 4.071

9cts 19.53 1.291 11,098$ 568$ 2.755

8cts 0.00 -$

7cts 59.16 1.772 418,642$ 7,076$ 3.850

6cts 18.66 1.271 4,893$ 262$ 2.419

5cts 63.46 1.803 161,188$ 2,540$ 3.405

4cts 84.75 1.928 60,761$ 717$ 2.855

3cts 148.35 2.171 126,666$ 854$ 2.931

2cts 269.43 2.430 227,949$ 846$ 2.927

1cts 1476.62 3.169 253,362$ 172$ 2.234

0.66cts 524.54 2.720 46,380$ 88$ 1.947

+11 1543.73 3.189 90,077$ 58$ 1.766

+9 1266.51 3.103 47,078$ 37$ 1.570

+7 882.79 2.946 26,227$ 30$ 1.473

+5 1516.41 3.181 24,732$ 16$ 1.212

+3 1290.74 3.111 16,780$ 13$ 1.114

‐3 0.00 0

9254.23 2,322,539$ 250.97$

Table 10.12: NADL 2010 Valuation

Weight Carats Log Value PPC Log Weight Carats Log Value PPC Log Weight Carats Value PPC Log Weight Carats Log value PPC Log

Spec 3331.72 3.523 3,594,298$ 1,079$ 3.033 Spec 31.79 1.502 71,098$ 2,237$ 3.350 Spec 31.79 83,225$ 2,618$ 3.418 Spec 78.78 1.896 679,782$ 8,629$ 3.936

10cts 639.08 2.806 805,450$ 1,260$ 3.100 10cts 21.14 1.325 174,387$ 8,249$ 3.916 10cts 21.14 385,696$ 18,245$ 4.261 10cts 10.77 1.032 126,924$ 11,785$ 4.071

9cts 807.92 2.907 989,156$ 1,224$ 3.088 9cts 28.53 1.455 73,553$ 2,578$ 3.411 9cts 28.53 86,928$ 3,047$ 3.484 9cts 19.53 1.291 11,098$ 568$ 2.755

8cts 1091.51 3.038 1,040,106$ 953$ 2.979 8cts 40.93 1.612 68,381$ 1,671$ 3.223 8cts 40.93 81,676$ 1,996$ 3.300 8cts 0.00 -$

7cts 1613.3 3.208 1,410,292$ 874$ 2.942 7cts 7.33 0.865 13,198$ 1,800$ 3.255 7cts 7.33 15,397$ 2,100$ 3.322 7cts 59.16 1.772 418,642$ 7,076$ 3.850

6cts 2071.98 3.316 1,647,494$ 795$ 2.900 6cts 52.07 1.717 68,776$ 1,321$ 3.121 6cts 52.07 85,168$ 1,636$ 3.214 6cts 18.66 1.271 4,893$ 262$ 2.419

5cts 3464.04 3.540 2,091,680$ 604$ 2.781 5cts 82.93 1.919 117,446$ 1,416$ 3.151 5cts 82.93 139,996$ 1,688$ 3.227 5cts 63.46 1.803 161,188$ 2,540$ 3.405

4cts 4939.9 3.694 2,227,930$ 451$ 2.654 4cts 130.90 2.117 114,513$ 875$ 2.942 4cts 130.90 137,192$ 1,048$ 3.020 4cts 84.75 1.928 60,761$ 717$ 2.855

3cts 9221.92 3.965 3,256,524$ 353$ 2.548 3cts 214.89 2.332 122,827$ 572$ 2.757 3cts 214.89 144,246$ 671$ 2.827 3cts 148.35 2.171 126,666$ 854$ 2.931

2cts 18063.81 4.257 4,249,603$ 235$ 2.372 2cts 372.77 2.571 145,423$ 390$ 2.591 2cts 372.77 164,592$ 442$ 2.645 2cts 269.43 2.430 227,949$ 846$ 2.927

1cts 39915.392 4.601 4,839,075$ 121$ 2.084 1cts 814.62 2.911 125,731$ 154$ 2.188 1cts 814.62 138,300$ 170$ 2.230 1cts 1476.62 3.169 253,362$ 172$ 2.234

0.66cts 21466.269 4.332 1,515,111$ 71$ 1.849 0.66cts 352.91 2.548 36,087$ 102$ 2.010 0.66cts 352.91 39,694$ 112$ 2.051 0.66cts 524.54 2.720 46,380$ 88$ 1.947

+11 72141.37 4.858 3,231,315$ 45$ 1.651 +11 1,388.85 3.143 75,987$ 55$ 1.738 +11 1,388.85 86,424$ 62.23$ 1.794 +11 1543.73 3.189 90,077$ 58$ 1.766

+9 59658.42 4.776 2,027,267$ 34$ 1.531 +9 1,149.27 3.060 57,540$ 50$ 1.700 +9 1,149.27 65,509$ 57.00$ 1.756 +9 1266.51 3.103 47,078$ 37$ 1.570

+7 39216.72 4.593 893,032$ 23$ 1.357 +7 872.17 2.941 32,916$ 38$ 1.577 +7 872.17 36,207$ 41.51$ 1.618 +7 882.79 2.946 26,227$ 30$ 1.473

+5 53015.46 4.724 931,465$ 18$ 1.245 +5 1,626.58 3.211 52,654$ 32$ 1.510 +5 1,626.58 57,921$ 35.61$ 1.552 +5 1516.41 3.181 24,732$ 16$ 1.212

+3 14487.96 4.161 131,614$ 9$ 0.958 +3 643.74 2.809 12,470$ 19$ 1.287 +3 643.74 14,046$ 21.82$ 1.339 +3 1290.74 3.111 16,780$ 13$ 1.114

345147 34881412.79 101.1 ‐3 393.78 2.595 3,366$ 9$ 0.932 ‐3 393.78 8,094$ 20.56$ 1.313 ‐3 0.00 0

8,225.20 1,366,354$ 166.12 8,225.20 1770311.51 215.23 9254.23 2,322,539$ 250.97$

NADL 2010 PRICES (mixed parcel)

Table 10.13: SUMMARY OF VALUATIONS

RIO 1999-2003 NADL 2006 2008 Revaluation

0.000

0.500

1.000

1.500

2.000

2.500

3.000

3.500

4.000

4.500

Spec

10cts 9cts

8cts

7cts

6cts

5cts

4cts

3cts

2cts

1cts

0.66c

ts +11 +9 +7 +5 +3

RIO 1999‐2003

NADL 2006

NADL 2008

NADL 2010

74

11 RESOURCE CLASSIFICATION 11.1 Introduction

There has been sufficient evaluation work done and including the results of previous mining operations to classify much of the Merlin resource as Indicated and Inferred Resources according to the JORC guidelines for the classification of mineral resources. However, it should be noted that there three limiting factors which prevent the resources being upgraded to Measured category. There has been insufficient drilling to adequately define the resources, grade continuity has not been demonstrated but rather is assumed to continue at depth and the effect of geological complexity within some of the pipes remains unresolved. 11.2 Mining Factors and assumptions The kimberlite pipes are well defined and identifiable bodies which will not require any unusual mining technique to exploit. The near surface resources will be exploited by conventional open pit methods which previous mining activities have demonstrated to be suitable. The underground resources will most likely be exploited by a conventional sub-level caving approach. Dilution is anticipated to be with acceptable limits and will be largely limited to the periphery of the pipes. 11.3 Metallurgical Test Work Diamond liberation is critical not only to ensure that modelled grades are achieved but more importantly to ensure the recovery of large high value diamonds. The use of HPGR technology to enhance diamond liberation and reduce diamond breakage has been proven in test work and is an essential component in any envisaged processing plant. The modelled Resource and Production grades are based on this assumption. A second benefit of HPGR technology is its superior ability to generate slime material over that of conventional crushing technology. A second assumption is that appropriate Optical Sorting technology will also be part of the process circuit to ensure ultra large diamonds are recovered and not crushed. The top size for Merlin diamonds is currently not known but previous mining operations recovered a 104.73ct diamond which was at the limit of the top screen size. Final recovery is also a critical area where diamonds can be lost as was demonstrated by the previous mining operations which were reliant on x-ray fluorescent technology. Approximately 8% of Merlin diamonds do not fluoresce and hence cannot b recovered with conventional x-ray technology. The use of dual energy and optical sorters will overcome this recovery problem. 11.4 Mineral Resource Statement The Mineral Resource is outlined below and is classified in accordance with JORC guidelines. These grades are unlikely to be achieved from a commercial mining and processing operation due to a number of factors such as lower screen size, cyclone efficiency and final recovery techniques. Hence prudence is required in the application of these grades to economic mining models.

75

Table 11.1 Mineral Resource

Pipe Indicated Res. (Tonnes)

Inferred Res. (Tonnes)

Total (Tonnes)

Grade (cpht)

Carats

Southern Cluster

PalSac2, 8,106,000 6,591,000 14,697,000 30 4,379,000 Launfal2 1,580,000 1,710,000 3,290,000 25 820,000 Excalibur1 464,000 309,000 773,000 34 262,000 Tristram2 740,000 740,000 6 44,000 19,500,000 5,505,000 Central Cluster

Gawain,2 1,050,000 610,000 1,660,000 39

655,000 Ywain2 76,000 95,000 171,000 81 139,000

1,831,000 794,000 Northern Cluster

Gareth1 125,000 143,000 268,000 22 60,000 Kaye2 846,000 2,135,000 2, 981,000 12 356,000 Ector1 1,509,000 3,470,000 4,980,000 7 370,000 Bedevere,2 366,000 138,000 504,000 21 106,000

8,733,000 892,000

TOTAL 30,064,000 24 7,191,000 1Resource grade based on previous mining operation recovery using a +0.95 mm slotted bottom screen and a +0.95mm cut-off. 2Resource grade based on bulk sample test work using a +0.8 mm slotted bottom screen and a +0.95mm cut-off. The Merlin Mineral Resources have been and classified and reported in accordance with The 2004 Australasian Code for Reporting of Mineral Resources and Ore Reserves (JORC Code). The Merlin Mineral Resources estimates have been prepared by T.H. Reddicliffe. T. H. Reddicliffe is a Fellow of the Australasian Institute of Mining and Metallurgy. T.H. Reddicliffe is a consultant to North Australian Diamonds Limited. T.H. Reddicliffe has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which they are undertaking. This qualifies T.H. Reddicliffe as a “Competent Person” as defined in the 2004 edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’

76

The Production Resources are those which a production plant is likely to achieve and are shown in Table 11.2. Table 11.2 Production Resource Indicated Res.

(Mt) Inferred Res. (Mt)

Total (Mt)

Grade (c/t)

Carats (Mcts)

Southern Cluster PalSac2 8.10 6.59 14.69 0.18 2.72

Launfal2 1.58 1.71 3.29 0.16 0.53

Excalibur1 0.46 0.31 0.77 0.30 0.23

Tristram2 0.74 0.74 0.06 0.04

Sub-Total 19.49 0.18 3.52

Central Cluster Gawain2 1.05 0.61 1.66 0.28 0.47

Ywain2 0.08 0.10 0.18 0.48 0.08

Sub-Total 1.84 0.30 0.55

Northern Cluster Gareth1 0.13 0.14 0.27 0.21 0.05

Kaye2 0.84 2.14 2.98 0.10 0.29

Ector1 1.51 3.47 4.98 0.07 0.37

Bedevere2 0.37 0.14 0.51 0.21 0.11

Sub-Total 8.74 0.93 0.82 TOTAL 14.12 15.95 30.07 0.16 4.89 1Resource grade based on previous mining operation recovery using a +0.95 mm slotted bottom screen and a +0.95mm cut-off

11.5 Mineral Resource Potential There remains significant potential for additional resources at Merlin since without exception all of the pipes remain open at depth. However it would not be expected that the pipes would maintain their gauge indefinitely but will taper and likely evolve into dike like bodies. Gawain has already demonstrated evidence of this with the pipe appearing to morph into a dyke below 0mRL. Similarly Excalibur has become significantly smaller at depth. The most attractive pipes in terms of significant additional tonnages are the PalSac and Kaye/Ector pipes. Although it has yet to be demonstrated that Kaye and Ector coalesce at depth the drilling to date indicates that this is highly probable and arguably should result in a reasonably sized pipe. PalSac which at surface is the two pipes Palomides and Sacramore appears to maintain a reasonable size at depth. 11.6 Discussion of relative accuracy/confidence The mineral resources are classified as Indicated and Inferred. There are no Measured Resources and no Proven Ore Reserves. With the completion of a Feasibility Study some of the Indicated Resources may be upgraded to Probable Ore Reserve status as per the JORC guidelines. There is a high level of confidence in the volume of the resource due to the fact that the mineral resource is physically contained within the intrusive kimberlite pipe. The pipes themselves are easily defined by drilling and generally have a predicable geometry. However there are insufficient pipe boundary contacts to upgrade the geometry sufficient for a Measured Resource.

77

Diamond grades are plant recovered grades, and are significantly affected by liberation, and recovery parameters such as the lower screen size. The Resource grades are often significantly higher than the Production grades due to the extra crushing and reprocessing undertaken and the smaller lower screen sizes used during evaluation test work. The Production grades reflect the likely recoverable grade for a large scale production processing plant. The reported grades are based on what has been previously mined from the pipes and in some instances additional samples have been obtained from the base of the open pits. It is important to note that no resources beneath the base of the pits have been tested for commercial diamond content. However provided there are no changes in the kimberlite lithology it is reasonable to assume that there would be no significant variations to grade, but it remains a risk factor particularly with increasing depth or distance from the pit sampling. Another risk factor is the geological complexity which is known to exist in some of the pipes. The previous mining operations did not distinguish between different lithologies when they were observed with the pipe being treated as a single geological unit. None of these subsidiary lithological units have been accurately defined spatially by drilling and based on limited microdiamond sampling are assumed to have a similar or better grade than the dominant kimberlite breccia phases. However, should the grades be significantly different and the phase more dominant then the grade of a pipe could change significantly.

78

12 BIBLEOGRAPHY Andrew, M.C & Noppe, M. (2004) Merlin Project Resource Estimate and Exploration Potential (2nd July 2004) Project Number 4805, Striker Resources. Archbold, N.W. (1997) Report on the Palaeontology and Sedimentological Materials from the Merlin Exploration Area, Northern Territory. Earth Sciences, School of Aquatic Science and Natural Resources Management, Rusden Campus, Deakin University, Clayton, Victoria 3168. Atkinson, W.J., Smith, C.B., Danchin, R.V., Janse, A.J.A. (1990) Diamond Deposits of Australia. In: F.E. Hughes (ed). Geology of the Minerla Deposits of Australia and Papua New Guinea. Australasian Insitute of Minig and Metallurgy, Melbourne, Mongraph 14, pp 69-76. Glass, L. & Taylor, W (2005) Technical Report: X-ray Flourescence - Merlin Diamonds, ‘X-Ray Flourescence Response of Merlin Diamonds’. Houwen, W.M (1995) Treatment of Merlin Bulk Samples Phase II, AML Report No. 51895. Hutton, W.A. (2002) The Crushing and Heavy Media Separation of a Second Bulk Sample of Merlin Ore. Leaman, D.E. (1998) Structure, Contents and Setting of Pb-Zn Mineralisation in the McArthur Basin, Northern Australia, Australian Journal of Earth Sciences, 45, pp 3-20. Marissen, C. (1996) Report on Trial Mining at Merlin Prospect on Excalibur, Launfal and Palomides Pipes, April to September 1996, Ashton Mining Ltd. Marissen, C. (2000) Notes to Accompany Resource Update Southern Pipe Cluster, Merlin Diamonds Pty Ltd. Merlin Diamonds Pty Ltd, Mining Management Plan 2002-2003 Appendix 5 Mineral Resources Development Inc, (1995) A Short Study of Sampling and Drilling at the Merlin Kimberlite Project, Snowden Associates Pty Ltd. Mitchell, R.H. (1995) Kimberlites, Orangeites and Related Rocks, Plenum Press, New York. Michelly, B.F Merlin Project Bulk Sampling Project Phase 3, Report No. 52049 Michelly, B.F. Merlin Project Bulk Sampling Report Phase III Report, Report No. 52049, Ashton Mining Ltd. Michelly, B.F. & Pooley, S.J. (1995) Merlin Project Preliminary Resource Report, December 1995, Report No. 51236. Michelly, B.F. & Pooley, S.J. (1995) Merlin Project Phase II Report, Volume 1, Part 1 of 2. Michelly, B.F. & Pooley, S.J. (1995) Merlin Project Phase II Report, Volume 1, Part 2 of 2. Pietsch, B.A., Rawlings, D.J., Creaser, P.M, Kruse, P.D., Ahmad, M., Ferenczi, P.A., Findhammer, T.L.R. (1991) Bauhinia Downs 1:250,000 Geological Series Explanatory Notes. Northern Territory Geological Survey. Plumb, K.A., Ahmad, M., Wygralak, A.S. (1990) Mid-Proterozoic Basins of the North Australian Craton - Regional Geology and Mineralisation. In: FE Hughes (ed). Geology of the Mineral Deposits of Australia and Papua New Guinea. Volume 1. Australasian Institute of Mining and Metallurgy, Melbourne, Monograph 14, pp 881-902.

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Plumb, K.A. & Wellman, P. (1997) McArthur Basin, Northern Territory: Mapping of Deep Troughs Using Gravity and Magnetic Anomalies. BMR Journal of Australian Geology and Geophysics, 10(3), pp 243-252. Pooley, S. (1995) Merlin Project, Palomides Winze Geology Report on Winze Sink, October - November 1995, Ashton Mining Ltd. Pooley, S. (1996) Merlin Project Geological Report on Bulk Sampling Activities, Palomides, Sacramore, Excalibur and Launfal, October 1995 - October 1996. Pooley, S. (2001) Palsac LDC Drill Program, Merlin Project, December 2001, Merlin Diamonds Pty Ltd. Reddicliffe, T.H. (1993) Australian Diamond Exploration, Summary of Exploration Activity 6th April 1993 to 15th June 1993, Report No. 50101, Ashton Mining Limited. Reddicliffe, T.H. (1995) Merlin Project, Supplementary Report to the Australian Diamond Exploration Summary of Exploration Activity Report 7th December 1994 to 28th February 1995. Reddicliffe, T.H. (1999) Msc Coursework, Merlin Kimberlite Field, Batten Province, Northern Territory. Reddicliffe, T.H. (2005) Summary of Merlin Mine, Report No. 05-004. Striker Resources. Reddicliffe, T.H (2007) Technical Board Papers, 3rd April 2007, North Australian Diamonds Ltd. Reddicliffe, T.H. (2010) Summary of Merlin Resource, Report No. 10-002, North Australian Diamonds Ltd. Rio Tinto Exploration Pty Ltd on behalf of Ashton Mining Ltd, (2002) Confidential Information Memorandum, Sale of the Merlin Diamond Mine and Adjacent Tenements. Swarko, S.K. (1966) Cretaceous Stratigraphy and Palaeontology of the Northern Territory. Bureau of Mineral Resources, Geology and Geophysics, 73, pp 1-135. Webb, A.W. (1994). Rb-Sr Dating of One Phlogopite Sample, Amdel Limited.

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