TECHNICAL REPORT FOR THE WHARF OPERATION PREPARED FOR COEUR MINING, INC. LEAD, SOUTH DAKOTA, U.S.A. NI 43-101 TECHNICAL REPORT Effective Date: December 31, 2017 Report Date: February 7, 2018 Prepared by: Ken Nelson, QP MMSA, Wharf Resources (U.S.A.), Inc. Tony Auld, RM SME, Wharf Resources (U.S.A.), Inc. Lindsay E. Chasten, RM SME, Wharf Resources (U.S.A.), Inc. Matthew R. Hoffer, RM SME, Coeur Mining Inc. Scott J. Jimmerson, RM SME, Coeur Mining Inc. John K. Key, RM SME, Wharf Resources (U.S.A.), Inc. Kelly B. Lippoth, CPG AIPG, Coeur Rochester, Inc. CAUTIONARY STATEMENT ON FORWARD-LOOKING INFORMATION This technical report contains forward-looking statements within the meaning of United States and Canadian securities laws. Such forward-looking statements include, without limitation, statements regarding Coeur Mining, Inc.’s (Coeur) expectations for the Wharf Operation, including estimated capital requirements, expected production, economic analyses, cash costs and rates of return; mineral reserve and resource estimates; estimates of gold grades; and other statements that are not historical facts. These statements may be identified by words such as “may,” “might”, “will,” “expect,” “anticipate,” “believe,” “could,” “intend,” “plan,” “estimate” and similar expressions. Forward-looking statements address activities, events or developments that Coeur expects or anticipates will or may occur in the future, and are based on information currently available. Although management believes that its expectations are based on reasonable assumptions, there can be no assurance that these expectations will prove correct. Important factors that could cause actual results to differ materially from those in the forward-looking statements include, among others, risks that Coeur’s exploration and property advancement efforts will not be successful; risks relating to fluctuations in the price of silver and gold; the inherently hazardous nature of mining-related activities; uncertainties concerning reserve and resource estimates; uncertainties relating to obtaining approvals and permits from governmental regulatory authorities; and availability and timing of capital for financing exploration and development activities, including uncertainty of being able to raise capital on favorable terms or at all; as well as those factors discussed in Coeur’s filings with the U.S. Securities and Exchange Commission (SEC), including Coeur’s latest Annual Report on Form 10-K and Quarterly Reports on Form 10-Q and its other SEC filings (and Canadian filings on SEDAR at www.sedar.com). Coeur does not intend to publicly update any forward- looking statements, whether as a result of new information, future events, or otherwise, except as may be required under applicable securities laws. CAUTIONARY NOTE TO U.S. READERS CONCERNING ESTIMATES OF MEASURED, INDICATED AND INFERRED MINERAL RESOURCES Information concerning the properties and operations of Coeur has been prepared in accordance with Canadian standards under applicable Canadian securities laws, and may not be comparable to similar information for United States companies. The terms “Mineral Resource”, “Measured Mineral Resource”, “Indicated Mineral Resource” and “Inferred Mineral Resource” used in this Report are Canadian mining terms as defined in accordance with National Instrument 43-101 (NI 43-101) under definitions set out in the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Standards on Mineral Resources and Mineral Reserves adopted by the CIM Council on May 10, 2014 While the terms “Mineral Resource”, “Measured Mineral Resource”, “Indicated Mineral Resource” and “Inferred Mineral Resource” are recognized and required by Wharf Mine NI 43-101 Technical Report Page | i Wharf Operation Lead, South Dakota, USA NI 43-101 Technical Report February 7, 2018 Canadian securities regulations, they are not defined terms under standards of the SEC. Under United States standards, mineralization may not be classified as a “Reserve” unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time the Reserve calculation is made. As such, certain information contained in this Report concerning descriptions of mineralization and resources under Canadian standards is not comparable to similar information made public by United States companies subject to the reporting and disclosure requirements of the United States SEC. An Inferred Mineral Resource has a lower level of confidence than that applying to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or pre-feasibility studies. Readers are cautioned not to assume that all or any part of Measured or Indicated Resources will ever be converted into Mineral Reserves. Readers are also cautioned not to assume that all or any part of an “Inferred Mineral Resource” exists, or is economically or legally mineable. In addition, the definitions of “Proven Mineral Reserves” and “Probable Mineral Reserves” under CIM standards differ in certain respects from the standards of the SEC. Wharf Operation NI 43-101 Technical Report Page | ii Wharf Operation Lead, South Dakota, USA NI 43-101 Technical Report February 7, 2018 CONTENTS 1. SUMMARY ................................................................................................................1 1.1 Drilling ............................................................................................................1 1.2 Sample Preparation, Security, and Analyses .................................................. 1 1.3 Data Verification .............................................................................................2 1.4 Status of Development and Mine Operations ................................................. 2 1.5 Mineral Resource and Mineral Reserve Estimates ......................................... 3 1.5.1 Resource ............................................................................................ 3 1.5.2 Reserve ..............................................................................................4 1.6 Capital and Operating Costs .......................................................................... 4 1.6.1 Capital Cost Estimates ....................................................................... 5 1.6.2 Operating Cost Estimates ................................................................... 5 1.7 Economic Analysis .........................................................................................5 1.7.1 Wharf Operation Economic Analysis ................................................... 5 1.8 Conclusions and Recommendations .............................................................. 7 1.8.1 Geology ..............................................................................................7 1.8.2 Resource Modeling ............................................................................. 8 1.8.3 Reconciliation .....................................................................................8 1.8.4 Mining ................................................................................................. 8 2. INTRODUCTION .......................................................................................................9 2.1 Terms of Reference ....................................................................................... 9 2.2 Qualified Persons ...........................................................................................9 2.3 Site Visits and Scope of Personal Inspection ............................................... 10 2.4 Effective Dates ............................................................................................. 12 2.5 Information Sources and References ........................................................... 12 2.6 Previous Technical Reports ......................................................................... 12 3. RELIANCE ON OTHER EXPERTS ......................................................................... 13 4. PROPERTY DESCRIPTION AND LOCATION ........................................................ 14 4.1 Project Location ........................................................................................... 14 4.2 Issuer’s Interest ............................................................................................ 15 4.3 Land Tenure ................................................................................................. 15 4.4 Royalty Interests .......................................................................................... 24 4.5 Permits ......................................................................................................... 30 4.6 Environmental Liabilities ............................................................................... 30 4.7 Social License .............................................................................................. 30 4.8 Significant Risk Factors ................................................................................ 30 5. ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE, AND PHYSIOGRAPHY .................................................................................................... 31 5.1 Accessibility ................................................................................................