National Instrument Technical Report for the Eva Copper Project Feasibility Study Report Effective Date: October 1, 2018 Report Date: November 14, 2018 Copper Mountain Mining Corporation NI 43-101 Technical Report for the Eva Copper Project Feasibility Study DATE AND SIGNATURE PAGE This report titled “National Instrument 43-101 Technical Report for the Copper Mountain Mine” and dated November 14, 2018 was prepared and signed by the following authors: Original Signed and Sealed Gerry Schwab, P.Eng. Dated at Vancouver, BC Senior Project Manager, Hatch Original Signed and Sealed Peter Holbek, M.Sc., P.Geo. Dated at Vancouver, BC Vice President Exploration, CMMC Original Signed and Sealed Stuart E. Collins, P.Eng. Dated at Denver, CO Principal Mining Engineer, CMMC Original Signed and Sealed Marinus Andre (Andre) de Ruijter, M.Sc.(Eng), P.Eng. Dated at Vancouver, BC Principal Metallurgical Engineer, Hatch Original Signed and Sealed Alistair Kent, M.E., P.Eng. Senior Project Manager, Dated at Vancouver, BC Merit Consultants International Inc. Original Signed and Sealed David John Toomey Morgan, B.Sc, M.Sc, AusIMM, MIEAust, CPEng. Dated at Perth, WA Managing Director, Knight Piesold Pty. Ltd. Date and Signature Page H355246-00000-200-230-0001-SE02, Rev. D, © Hatch 2018 All rights reserved, including all rights relating to the use of this document or its contents. Copper Mountain Mining Corporation NI 43-101 Technical Report for the Eva Copper Project Feasibility Study Original Signed and Sealed Dated at Perth, WA Roland Bartsch, Msc, Bsc. Hons, MAUSIMM, MAIG General Manager Exploration, CMMPL Original Signed and Sealed Dated at Vancouver, BC (Edward) Richard Klue, NHD Ext. Met., B. Com., FSAIMM Vice President Technical Services, CMMC Date and Signature Page H355246-00000-200-230-0001-SE02, Rev. D, © Hatch 2018 All rights reserved, including all rights relating to the use of this document or its contents. Copper Mountain Mining Corporation NI 43-101 Technical Report for the Eva Copper Project Feasibility Study Table of Contents 1. EXECUTIVE SUMMARY ..................................................................................................................... 1-1 1.1 Key Facts ................................................................................................................................... 1-2 1.2 Project Overview ........................................................................................................................ 1-3 1.3 Reliance on Other Experts ......................................................................................................... 1-5 1.4 Property Description and Location ............................................................................................. 1-5 1.5 Accessibility, Climate, Local Resources, Infrastructure, and Physiography .............................. 1-6 1.6 History ........................................................................................................................................ 1-7 1.7 Geological Setting and Mineralization ....................................................................................... 1-8 1.8 Drilling ........................................................................................................................................ 1-9 1.9 Exploration ................................................................................................................................. 1-9 1.10 Deposit Types .......................................................................................................................... 1-10 1.11 Sample Preparation, Analyses, and Security .......................................................................... 1-10 1.12 Data Verification ....................................................................................................................... 1-11 1.13 Metallurgical Testwork and Process Design ............................................................................ 1-11 1.13.1 Introduction ........................................................................................................... 1-11 1.13.2 Highlights of Selected Test Results ..................................................................... 1-11 1.13.3 Comminution ........................................................................................................ 1-12 1.13.4 Flotation ................................................................................................................ 1-12 1.13.5 Concentrate Characterization .............................................................................. 1-13 1.13.6 Tailings Handling .................................................................................................. 1-13 1.14 Mineral Resources Estimate .................................................................................................... 1-13 1.14.1 Eva Copper Project Resources ............................................................................ 1-13 1.14.2 Copper-Only Deposits Historical Resources ........................................................ 1-15 1.15 Mineral Reserve Estimate ........................................................................................................ 1-16 1.16 Mining Method ......................................................................................................................... 1-18 1.16.1 Life-of-Mine and Process Production Schedules ................................................. 1-20 1.17 Recovery Methods ................................................................................................................... 1-23 1.17.1 Process Design Description ................................................................................. 1-23 1.18 Project Infrastructure ............................................................................................................... 1-26 1.18.1 Power Supply ....................................................................................................... 1-27 1.18.2 Water Supply and Treatment ............................................................................... 1-30 1.18.3 Logistics ............................................................................................................... 1-31 1.19 Market Studies and Contracts ................................................................................................. 1-32 1.20 Environment, Permitting, Social, or Community Impact .......................................................... 1-34 1.21 Capital and Operating Costs .................................................................................................... 1-35 1.21.1 Capital Costs ........................................................................................................ 1-35 1.21.2 Operating Costs ................................................................................................... 1-36 1.22 Economic Analysis ................................................................................................................... 1-37 1.23 Adjacent Properties.................................................................................................................. 1-40 1.24 Other Relevant Data and Information ...................................................................................... 1-41 1.24.1 Project Execution Plan Outline ............................................................................. 1-41 1.24.2 Management Engineering / Procurement and Construction Management .......... 1-42 1.24.3 Project Execution Schedule ................................................................................. 1-42 Table of Contents Page i © Hatch 2018 All rights reserved, including all rights relating to the use of this document or its contents. Copper Mountain Mining Corporation NI 43-101 Technical Report for the Eva Copper Project Feasibility Study 1.25 Interpretation and Conclusions ................................................................................................ 1-43 1.25.1 Geology, Mineral Resources, and Mineral Reserves ........................................... 1-43 1.25.2 Metallurgical Testwork and Mineral Processing ................................................... 1-44 1.25.3 Process Plant ....................................................................................................... 1-44 1.25.4 Infrastructure ........................................................................................................ 1-44 1.25.5 Environmental, Permitting, and Social Considerations ........................................ 1-45 1.25.6 Capital and Operating Costs ................................................................................ 1-46 1.25.7 Economics ............................................................................................................ 1-46 1.26 Recommendations ................................................................................................................... 1-46 1.26.1 Mineral Resources and Mineral Reserves ........................................................... 1-46 1.26.2 Infrastructure, Process, and Plant ........................................................................ 1-47 1.26.3 Satellite Deposits (Lady Clayre, Ivy Ann, and Bedford) ....................................... 1-47 1.26.4 Exploration Targets .............................................................................................. 1-47 2. INTRODUCTION ................................................................................................................................