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Low Risk Copper Growth From a Solid Foundation TSX: CMMC | ASX: C6C

Corporate Presentation January 2019

Forward Looking Information This presentation contains forward-looking statements. these forward-looking statements are not based on historical facts, but

rather on current expectations, forecasts, estimates and projections about global and regional economic conditions as well as

industries that are major markets for copper mountain mining corporation and projections about future events. these forward-

looking statements are subject to risks an uncertainties. these risks and uncertainties could cause actual results to differ materially

from the future results expressed or implied by the forward-looking statements. therefore, all statements, other than statements of

historical fact, are to be considered forward looking. there can be no assurances that such statements will prove accurate and,

therefore, readers are cautioned that such statements may differ materially from actual future events. readers are referred to the

documents, filed by the company on SEDAR www.sedar.com, and more specifically such recent reports that identify important risk

factors that could cause actual results to differ from those contained in the forward-looking statements.

Information concerning Altona. except as otherwise expressly indicated herein, the information concerning Altona contained in this

document has been taken from and is based solely upon Altona’s public disclosure on file with the relevant securities regulatory

authorities. Altona has not reviewed this document and has not confirmed the accuracy and completeness of the information in

respect of Altona contained in this document. although we have no knowledge that would indicate that any information or

statements contained in this document concerning Altona taken from, or based upon, such public disclosure contain any untrue

statement of a material fact or omit to state a material fact that is required to be stated or that is necessary to make a statement not

misleading in light of the circumstances in which it was made, none of our directors or officers have verified the accuracy or

completeness of such information or statements or are aware of any failure by Altona to disclose events or facts which may have

occurred or which may affect the significance or accuracy of any such information or statements. we have no means of verifying the

accuracy or completeness of any of the information contained herein that is derived from Altona’s publicly available documents or

records or whether there has been any failure by Altona to disclose events that may have occurred or may affect the significance or

accuracy of any information. except as otherwise indicated, information concerning Altona is given based on information in Altona’s

public disclosure available as of the date of the offer.

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Low Risk Copper Growth

CANADA

& NEW INGERBELLE Portfolio of High Quality Assets

World Class Jurisdictions

Skilled & Experienced Team

Management

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Gil Clausen, President & Chief Executive Officer, Director !  30+ years’ experience in finance, development and

operations in base metals and precious metals. !  Registered Professional Engineer in B.C. !  Holds Bachelor’s and Master’s degrees in Mining

Engineering. !  Graduate of Queen’s University’s executive business

program and the Harvard University Business School’s program in corporate board governance.

Rodney A. Shier, Chief Financial Officer !  20+ years’ experience as a corporate officer and

director !  Experience in raising $1+ billion in debt and equity

financing !  CPA, CA and a member of the Institute of

Chartered Accountants of British Columbia !  Bachelor’s of Commerce degree.

Don Strickland, Chief Operating Officer !  25+ years in mining experience !  Track record of success and proven leadership, !  Professional Engineer !  B.Sc. (Hons) in Materials Science and Metallurgical

Engineering

Richard Klue, Vice President, Technical Services !  35+ years in the mining minerals and metals industry !  NHD Ext.Met, Fellow of the South African Institute of

Mining & Metallurgy (SAIMM) and a Metallurgical Engineer by profession

!  Bachelor’s of Commerce degree.

Lance Newman, Vice President, Project Development !  30 years’ experience in project management and development,

concentrating, smelting and refining operations in base and precious metals.

!  B.Sc. (Hons) in Chemistry and graduate of the Management Advancement Program in Business.

Letitia Wong, Vice President, Corporate Development & Investor Relations !  15 years’ experience in corporate development, strategic

transactions, finance and investor relations in the mining industry. !  Bachelor’s of Commerce degree in Finance and a CFA

Charterholder.

Peter Holbek, Vice President, Exploration !  30 years’ experience in mineral exploration and mine

development. !  Bachelor’s of Science degree (Hons) in Geology and a

Master’s of Science in Economic Geology.

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Copper Mountain Mine

!  Conventional open pit with 40 ktpd plant,

conventional crush, grind and flotation circuit

!  Average life of mine production of approx. 90M

lbs of copper equivalent per year

!  Mine life of 14+ years based on reserves only

!  Potential to increase production and extend mine

life with integration of New Ingerbelle pit and

additional

75% owned, located in southern B.C., 300 km from Vancouver

British Columbia

C A N A D A

exploration.

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Flagship Asset: Copper Mountain Mine Copper and Copper Equivalent(1) Production (Mlbs)

Potential to Add Significant Value

from Additional Low Cost

Production with the Integration of

the past producing New Ingerbelle

pit into the Copper Mountain Mine

plan

75,8 78.9 72-80

86-95 81-89

12,5 13.6 14-15

17-18 14-16

2017 2018 2019E 2020E 2021E

88.3 92.5 86-95

103-113 95-105

Copper equivalent includes precious metals gold and silver. For years 2019 to 2021, copper equivalent calculation assumes copper price of US$3.00/lb, Gold price of US$1,300/oz, and a Silver price of US$17.00/oz

Predictable and Reliable Production Platform Provides Foundation for Growth

View of New Ingerbelle Pit from Copper Mountain Mine

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New Ingerbelle Pit Located 1 km from the Copper Mountain Mine

Provides potential for additional low cost production with modest capital

-- Work underway to integrate New

Ingerbelle pit into Copper Mountain mine production plan

-- Integrated plan (Technical Report)

expected Q1 2019

Base Case PEA, M&I Resource only(1)

Total Copper Production 768 Mlbs

Total Gold Production 550 koz

C1 Cash Costs (net of by-product credits) US$1.52

1.  Base Csae only includes Measured & Indicated Resources, excludes Inferred Resources. Assumes New Ingerbelle ore is trucked to Copper Mountain and supplants Copper Mountain ore. 2.  Assumes CAD to USD exchange rate of 1.25:1, consensus long-term copper price of $3.08/lb and gold price of $1,310/oz.

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Eva Copper Project

!  100% owned by Copper Mountain

!  Permitted, development-ready Cu/Au planned open pit

!  Conventional processing circuit: crushing, grind, flotation

!  Near infrastructure, accessible by air and road

!  Completed 43-101 Feasibility Study October 2018

!  Estimated annual production of ~100M lbs CuEq

Located 95 km northeast of Mt Isa in

Queensland, Australia

A U S T R A L I A

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Eva Copper Project

Eva Copper

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Eva Copper Project Feasibility Study Highlights (Based on Sulfides only)

After-tax NPV (8%)(1) US$256M

After-tax IRR(1) 28%

Total Copper Production 959M lbs

Total Gold Production 203k oz

Annual Copper Production (full years 1-9) 90M lbs

Annual Gold Production (full years 1-9) 19k oz

Copper Recovery 93%

Gold Recovery 78%

Copper Feed Grade 0.45%

Gold Feed Grade 0.08 g/t

Mine Life 12 Years

Total Initial Capital US$350

C1 Cash Costs (net of by-products) (1) $1.74 per lb.

CuEq production of ~100M lbs per year

1. Assumes an Australian Dollar to U.S. Dollar exchange rate of 1.35:1 and bank consensus long-term metal prices of US$3.08 per lb of copper and US$1,310 per oz of gold.

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Low Capital Intensity

$-

$5.000

$10.000

$15.000

$20.000

$25.000

$30.000

Eva Copper Casino Pebble Prosperity Cobre Panama Timok Upper Zone Rosemont Santo Domingo Taca Taca Galore Creek

Capital Intensity (US$/t Cu Eq)

Wood Mackenzie average for global greenfield projects: $16,048

Non-dilutive Funding Plan for Eva:

!  Restructure current debt and internal cash

flow.

!  Withhold construction start and large project

expenditures until funding plan in place.

Exploration Update - Australia

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!  Focus on “copper-only” prospects near proposed Eva

Copper operation that have potential to add mill feed

!  Regional exploration also underway on approx. 4,000km2 land

package in the heart of Mt Isa Inlier region focused on Cameron Copper (30 km from Eva), which has been early stage

tested

Phased Organic Growth Plan

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Copper Mountain Mine

New Ingerbelle Pit

Cameron Copper Project

Exploration Expansion and

Integration Production

90M lbs CuEq Per Year

Additional Production

Potential

Compared to peers, currently has best organic growth profile yet currently has one of the lowest P/NAVs

!  Prudently advance peer-leading organic growth !  Maintain disciplined approach to capital and risk management !  Maximize return on equity and invested capital

!  Copper Mountain provides low risk high value growth opportunities with real leverage to the copper price

Eva Copper Project

Development

~100M lbs CuEq Per Year

Copper Mountain Mine

+ New Ingerbelle

Pit

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Investor Relations Letitia Wong Vice President, Corporate Development & Investor Relations T: (604) 682-2992 E: Letitia.Wong@CuMtn.com In Europe: Swiss Resource Capital AG Jochen Staiger info@resource-capital.ch www.resource-capital.ch

TSX: CMMC | ASX: C6C

Share Information

Share Structure (as of January 30, 2019)

Shares Outstanding 188.1M

Options 10.8M

DSUs & RSUs 4.0M

Fully Diluted Shares Outstanding 202.9M

Recent Market Information

TSX:CMMC C$0.87

ASX: C6C A$0.90

Market Capitalization (basic) ~ C$164M

Average Trading Volume (30 days) ~ 200,000

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APPENDIX

Copper Mountain Mining Corporation Mineral Reserve and Mineral Resource Estimate

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Tonnes Copper Gold Silver Copper Gold Silver (‘000s) (%) (g/t) (g/t) (M lbs) (M oz) (M oz)

MINERAL RESERVES

Proven and Probable Copper Mountain Mine 210,079 0.26 0.09 0.89 1,209 0.5 6.0 Eva Copper Project 117,037 0.40 0.07 - 1,031 0.3 0.0

Total Proven and Probable 327,116 0.31 0.08 0.89 2,240 0.8 6.0

MINERAL RESOURCES (inclusive of mineral reserves) Measured and Indicated Copper Mountain Mine 322,755 0.26 0.08 1.05 1,824 0.87 10.9 Eva Copper Project 151,121 0.38 0.07 - 1,259 0.33 - New Ingerbelle Project 195,647 0.26 0.16 0.50 1,092 1.66 3.14

Total Measured and Indicated 669,523 0.29 0.20 0.55 4,175 2.86 14.0

Inferred Copper Mountain Mine 111,855 0.21 0.08 0.63 523 0.29 2.26 Eva Copper Project 22,368 0.35 0.07 - 174 0.05 - New Ingerbelle Project 93,459 0.23 0.14 0.43 480 0.43 1.92

Total Inferred 227,682 0.23 0.10 0.49 1,177 0.77 4.18

Please see accompanying Mineral Reserve and Mineral Resource notes on the next slide. For full Mineral Reserve and Mineral Resource tables please see the Copper Mountain Mine October 2018 Technical Report and the Eva Copper October 2018 Technical Report

Copper Mountain Mining Corporation Mineral Reserve and Mineral Resource Estimate Notes

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Mineral Reserves Copper Mountain Mine: 1.  JORC and CIM Definition Standards were followed for Mineral Reserves. 2.  Mineral Reserves were generated using the September 1, 2018 mining surface. 3.  Mineral Reserves are reported at an NSR equivalent of a 0.13% Cu cut-off grade. 4.  Mineral Reserves are reported using long-term copper, gold, and silver prices of $2.75/lb, $1,250/oz, and $16.50/oz, respectively. 5.  An average copper process recovery of 79%, gold process recovery of 68%, and silver process recovery of 71% is based on geo-metallurgical domains. 6.  The Alabama deposit, which contains approximately 8% of the Mineral Reserves, has a 5% Net Smelter Royalty. 7.  Average bulk density is 2.78 t/m3. 8. Stockpile grades are approximations based on grade control results. Eva Copper: 1.  CIM Definition Standards were followed for Mineral Reserves. 2.  Mineral Reserves were generated using the August 31, 2018 mining surface. 3.  Mineral Reserves are reported at an NSR cut-off value of $8.95/t for Little Eva and Turkey Creek, $9.35/t for the Bedford pits, $10.32/t for Lady Clayre pits, and $11.44/t for Ivy Ann. 4.  Mineral Reserves are reported using long-term copper and gold prices of $2.75 and $1,250/oz, respectively. 5.  An average copper process recovery of 93%, and gold process recovery of 78% were used for all deposit areas during pit optimization for sulphide only. 6.  Little Eva, Turkey Creek, Bedford, and Lady Clayre have an equivalent 5.3% NSR royalty. Ivy Ann has an equivalent 5.8% royalty. 7.  Average bulk density of 2.7 t/m3. 8. Totals may not add due to rounding. Mineral Resources Copper Mountain Mine and New Ingerbelle: 1.  CIM Definition Standards were followed for Mineral Resources. 2.  Mineral Resources were generated using the September 1, 2018 mining surface. 3.  Mineral Resources are reported at a 0.12% Cu cut-off grade. 4.  Mineral Resources are inclusive of Mineral Reserves. 5.  Mineral Resources are reported using long-term copper, silver, and gold prices of $3.50/lb, $16.5, and $1,250/oz, respectively. 6.  An average copper process recovery of 79%, gold process recovery of 68%, and silver process recovery of 71% is based on geo-metallurgical domains and actual plant values. 7.  The Alabama deposit at the Copper Mountain Mine has a 5% NSR royalty. 8.  Average bulk density is 2.78 t/m3. 9.  Mineral Resources are constrained within a Whittle LG pit shell. 10. Totals may not add due to rounding. Eva Copper: 1.  CIM Definition Standards were followed for Mineral Reserves. 2.  Mineral Reserves were generated using the August 31, 2018 mining surface. 3.  Mineral Reserves are reported at an NSR cut-off value of $8.95/t for Little Eva and Turkey Creek, $9.35/t for the Bedford pits, $10.32/t for Lady Clayre pits, and $11.44/t for Ivy Ann. 4.  Mineral Reserves are reported using long-term copper and gold prices of $2.75 and $1,250/oz, respectively. 5.  An average copper process recovery of 93%, and gold process recovery of 78% were used for all deposit areas during pit optimization for sulphide only. 6.  Little Eva, Turkey Creek, Bedford, and Lady Clayre have an equivalent 5.3% NSR royalty. Ivy Ann has an equivalent 5.8% royalty. 7.  Average bulk density of 2.7 t/m3. 8.  Totals may not add due to rounding.

Board of Directors

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Jim O’Rourke, Chair !  40+ years’ experience in mine evaluations, development, project financing, marketing and operations in Canada, the United States,

South America and the Philippines. !  Founding member of Copper Mountain Mining and was President and CEO from its inception in 2007 until his retirement in June 2018. !  Mr. O’Rourke is a P.Eng and graduated with a B.Sc. degree in Mining Engineering from the University of British Columbia. !  Mr. O’Rourke is a 2005 recipient of the Edgar A. Scholz Medal for Excellence in Mine Development in British Columbia and the Yukon,

the recipient of the Mining Person of the Year award for British Columbia in 2010 and the recipient of the Order of British Columbia in 2011. In 2013 Jim was inducted into the Canadian Mining Hall of Fame.

Gil Clausen, President & Chief Executive Officer, Director !  30+ years’ experience in the areas of management, finance, development and operations in the base metals and precious metals

industry. !  Most recently was the President & CEO of Brio Gold Inc. until its acquisition in May 2018. !  Prior positions includes: President & CEO of Augusta Resource Corporation until its acquisition in July 2014; Executive Vice President,

Mining of Washington Group International, Inc.; Vice President of Operations of Stillwater Mining Company; and, mine general manager at several precious and base metals operations of Placer Dome Inc in British Columbia and Ontario.

!  Mr. Clausen is a registered Professional Engineer in B.C. with Bachelor’s and Master’s degrees in Mining Engineering from Queen’s University. He is a graduate of Queen’s University’s executive business program and the Harvard University Business School’s program in corporate board governance.

Bruce Aunger, Director !  30+ years’ experience in accounting, taxation and finance !  Previously was CFO of Madison Venture Corporation and Partner at Arthur Andersen !  Currently serves as Secretary of Glacier Media, Inc. and GVIC Communications Corp. !  Mr. Aunger is a CPA, CA and graduated from Simon Fraser University with a Bachelor of Commerce degree.

Al Cloke, Director !  40 years’ experience as a supplier to the mining industry. !  Senior executive with proven leadership, team building and market development skills with a track record of successfully managing

the profitable growth of mining distribution businesses. !  Mr. Cloke was Chairman of B.C. Children’s Hospital, Mining for Miracles campaign and is co–founder of Fishing for Kids and Hooked

on Miracles fundraising events for the mining industry and B.C. Children’s Hospital.

Board of Directors

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Alistair Cowden, Director !  35+ years’ experience as a mining executive, director and geologist in the mining industry in Australia, Africa, Asia and Europe. !  Founded eight public companies including Altona Mining, of which Alistair was Managing Director, which owned the Eva Copper project

prior to its acquisition by Copper Mountain. !  Mr. Cowden has been part of the discovery, financing and development of many mines in Australia, Africa and Europe and has

extensive experience across all aspects of the mining industry including mergers and acquisitions and financing. !  Mr. Cowden is a member of the Australasian Institute of Mining and Metallurgy, The Australian Institute of Geoscientists and the

Australian Institute of Company Directors. !  Awarded Diggers and Dealers Junior Explorer of the Year in 1995 and received the Queensland Explorer of the Year in 2012. !  Mr. Cowden has an honours degree in Geology from Edinburgh University and a PhD in Geology from the University of London Marin Katusa, Director !  20 years’ experience in finance, asset management and capital markets, with a focus in mining and energy. !  Currently a hedge fund manager focused on the natural resource sector and is a mining expert in the capital markets. !  Previously was Chief Energy Investment Strategist at Casey Research, LLC. !  Mr. Katusa graduated from the University of British Columbia with a Bachelor of Science degree and a Bachelor of Education.

Carl Renzoni, Director !  45+ years experience in banking, corporate finance, mergers & acquisitions and capital markets specializing in the mining industry !  Previously was in investment banking as Managing Director at BMO Nesbitt Burns Inc. !  Mr. Renzoni graduated from Queen’s University with a Bachelor of Science degree (hons) in Geology.

Bill Washington, Director !  20+ years’ investment banking experience in the mining sector !  Most recently was Managing Director and Head of Global Mining & Metals at National Bank Financial !  Previous positions include Head of Investment Banking at Wellington West Capital Markets, investment banker at First Marathon,

Gordon Capital and Lancaster Financial/TD Securities. Prior to that Mr. Washington worked as a civil engineer on international infrastructure projects.

!  Mr. Washington graduated from the University of British Columbia with a Bachelor’s degree in Civil Engineering and has an MBA from the University of Western Ontario.