Investors: 800.432.5291 Français Legal/Privacy Careers Contact Responsible Mining Investors Quality Assets News & Events Our Company Legal/Privacy Please read the Hecla Website Privacy Policy or Terms of Use carefully before using this website, www.hecla-mining.com, or any of the services provided through this website. Purchase Orders T&Cs Please read the purchase order terms and conditions for Hecla and its subsidiaries and also for Rio Grande Silver. Notice of Information Privacy Please read the Notice of Information Privacy with respect to Minera Hecla, S.A. de C.V. Aviso de Privacidad PDF Proprietary Rights The Site, its organization and design, and all information, images, artwork, text, video, audio, pictures and other materials on the Site (collectively the “Content”) are protected by copyright and other proprietary rights, all of which are owned by Hecla Mining Company (the “Company”). You may download information from the Site for your personal, noncommercial viewing, but you may not, directly or indirectly, otherwise copy, reproduce, republish, post, transmit, display, frame in another web page, perform, distribute, modify or create derivative works from the Content without the Company’s prior written approval. You do not acquire ownership rights to any Content by accessing or using the Site, and the Company’s posting of Content on the site does not constitute a waiver of any right in or to such Content. The Company owns the Company’s logo, and all other Company trademarks and trade names appearing on the Site. Unless otherwise indicated, all other trademarks appearing on the Site are owned by third parties and are used by the Company under license. Disclaimers This Site and its Content are provided “as is” and “as available”. The Content is believed to be accurate when it was posted on this Site. However, the Content may not be accurate, complete or current. 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Reconciliation of Cash Costs per Ounce (Silver and Gold) PDF 10-Year Historical Reserves PDF Extractive Sector Transparency Measures Act (ESTMA) Our operations in the province of Quebec are conducted within Hecla’s 100% owned subsidiary, Hecla Quebec Inc. As such, Hecla Quebec is required to comply with the reporting requirements under the Extractive Sector Transparency Measures Act (“ESTMA”) which was made effective by the Government of Canada on June 1, 2015. This Act delivers on Canada’s international commitments to contribute to global efforts to increase transparency and deter corruption in the extractive sector by requiring extractive entities active in Canada to publicly disclose, on an annual basis, specific payments made to all governments in Canada and abroad. Please see Hecla Quebec’s annual ESTMA filings below: Extractive Sector Transparency Measures Act Report 2020 PDF Extractive Sector Transparency Measures Act Report 2019 PDF Extractive Sector Transparency Measures Act Report 2018 PDF Extractive Sector Transparency Measures Act Report 2017 PDF Extractive Sector Transparency Measures Act Report 2016 PDF Hecla Mining Company acquired Klondex Mines Ltd. in July 2018. Please see Klondex Mines’ annual ESTMA filings below: Extractive Sector Transparency Measures Act Report 2016 PDF Extractive Sector Transparency Measures Act Report 2017 PDF Extractive Sector Transparency Measures Act Report 2018 PDF Cautionary Note Regarding Forward Looking Statements Statements made or information provided on this website that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 and “forward-looking information” within the meaning of Canadian securities laws. Words such as “may”, “will”, “should”, “expects”, “intends”, “projects”, “believes”, “estimates”, “targets”, “anticipates” and similar expressions are used to identify these forward-looking statements. The material factors or assumptions used to develop such forward-looking statements or forward-looking information include that the Company’s plans for development and production will proceed as expected and will not require revision as a result of risks or uncertainties, whether known, unknown or unanticipated, to which the Company’s operations are subject. Forward-looking statements involve a number of risks and uncertainties that could cause actual results to differ materially from those projected, anticipated, expected or implied. These risks and uncertainties include, but are not limited to, metals price volatility, volatility of metals production and costs, litigation, regulatory and environmental risks, operating risks, project development risks, political risks, labor issues, ability to raise financing and exploration risks and results; including that mineral resources are not mineral reserves, they do not have demonstrated economic viability and there is no certainty that they can be upgraded to mineral reserves through continued exploration, and with respect to Hecla’s non-operating and exploration properties, that few properties that are explored are ultimately developed into producing mines. Refer to the Company’s Form 10-K and 10-Q reports for a more detailed discussion of factors that may impact expected future results. The Company undertakes no obligation and has no intention of updating forward-looking statements other than as may be required by law. Cautionary Note to Investors The United States Securities and Exchange Commission permits mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms on this website, such as “measured,” “indicated,” and “inferred resources” that the SEC guidelines strictly prohibit us from including in our filing with the SEC. U.S. investors are urged to consider closely the disclosure in our Form 10-K, included on this website. Cautionary Note Regarding Estimates of Measured, Indicated and Inferred Resources Reporting requirements in the United States for disclosure of mineral properties as of December 31, 2020 and earlier are governed by the SEC’s Securities Act Industry Guide 7, entitled “Description of Property by Issuers Engaged or to be Engaged in Significant Mining Operations” (Guide 7). Effective January 1, 2021, the SEC has issued new rules rescinding Guide 7. Mining companies are not required to comply with the new rules until the first fiscal year beginning on or after January 1, 2021. Thus, the Company will be required to comply with the new rules when filing its Form 10-K for the fiscal year ended December 31, 2021. The Company is also a “reporting issuer” under Canadian securities laws, which require estimates of mineral resources and reserves to be prepared in accordance with Canadian National Instrument 43-101 (NI 43-101). NI 43-101 requires all disclosure of estimates of potential mineral resources and reserves to be disclosed in accordance with its requirements. Such Canadian information is included herein to satisfy the Company’s “public disclosure” obligations under Regulation FD of the SEC and to provide U.S. holders with ready access to information publicly available in Canada. Reporting requirements in the United States for disclosure of mineral properties under Guide 7 compared to the new SEC rules (Item 1300 of Regulation S-K under the Securities and Exchange Act of 1934) and the requirements in Canada under NI 43-101 standards are substantially different. This document contains a summary of certain estimates of the Company, not only of Proven and Probable reserves within the meaning of Guide 7, but also of mineral resource and mineral reserve estimates estimated in accordance with the new SEC rules and definitional standards of the Canadian Institute of Mining, Metallurgy and Petroleum referred to in NI 43-101. Under Guide 7, the term “reserve” means that part of a mineral deposit that can be economically and legally extracted or produced at the time of the reserve determination. The term “economically”, as used in the definition of reserve, means that profitable extraction or production has been established or analytically demonstrated to be viable and justifiable under reasonable investment and market assumptions. The term “legally”, as used in the definition of reserve, does not imply that all permits needed for mining and processing have been obtained or that other legal issues have been completely resolved. However, for a reserve to exist, Hecla must have a justifiable expectation, based on applicable laws and regulations, that issuance of permits or resolution of legal issues necessary for mining and processing at a particular deposit will be accomplished in the ordinary course and in a timeframe consistent with Hecla’s current mine plans. The terms “Measured resources”, “Indicated resources,” and “Inferred resources” are mining terms as defined in accordance with the new SEC rules and NI 43-101. These terms are not defined under Guide 7 and prior to January 1, 2021, were not normally permitted to be used in reports and registration statements filed with the SEC in the United States, except where required to be disclosed by foreign law. The term “resource” does not equate to the term “reserve”. Under Guide 7, the material described herein as “Indicated resources” and “Measured resources” would be characterized as “mineralized material” and is permitted to be disclosed in tonnage and grade only, not ounces. The category of “inferred resources” is not recognized by Guide 7. Investors are cautioned not to assume that any part or all of the mineral deposits in such categories will ever be converted into Proven or Probable reserves. “Resources” have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of such a “resource” will ever be upgraded to a higher category or will ever be economically extracted. Investors are cautioned not to assume that all or any part of a “resource” exists or is economically or legally mineable. Investors are also especially cautioned that the mere fact that such resources may be referred to in ounces of silver and/or gold, rather than in tons of mineralization and grades of silver and/or gold estimated per ton, is not an indication that such material will ever result in mined ore which is processed into commercial silver or gold. Qualified Person (QP) Pursuant to Canadian National Instrument 43-101 Kurt D. Allen, MSc., CPG, VP – Exploration of Hecla Mining Company and Keith Blair, MSc., CPG, Chief Geologist of Hecla Limited, who serve as a Qualified Person under National Instrument 43-101, supervised the preparation of the scientific and technical information concerning Hecla’s mineral projects on this website, including with respect to the newly acquired Nevada projects. Information regarding data verification, surveys and investigations, quality assurance program and quality control measures and a summary of sample, analytical or testing procedures for the Greens Creek Mine are contained in a technical report prepared for Hecla titled “Technical Report for the Greens Creek Mine, Juneau, Alaska, USA” effective date December 31, 2018, and for the Lucky Friday Mine are contained in a technical report prepared for Hecla titled “Technical Report on the Lucky Friday Mine Shoshone County, Idaho, USA” effective date April 2, 2014, for the Casa Berardi Mine are contained in a technical report prepared for Hecla titled “Technical Report on the Mineral Resource and Mineral Reserve Estimate for the Casa Berardi Mine, Northwestern Quebec, Canada” effective date December 31, 2018 (the “Casa Berardi Technical Report”), and for the San Sebastian Mine are contained in a technical report prepared for Hecla titled “Technical Report for the San Sebastian Ag-Au Property, Durango, Mexico” effective date September 8, 2015. Also included in these four technical reports is a description of the key assumptions, parameters and methods used to estimate mineral reserves and resources and a general discussion of the extent to which the estimates may be affected by any known environmental, permitting, legal, title, taxation, socio-political, marketing or other relevant factors. Information regarding data verification, surveys and investigations, quality assurance program and quality control measures and a summary of sample, analytical or testing procedures for the Fire Creek Mine are contained in a technical report prepared for Klondex Mines titled “Technical Report for the Fire Creek Project, Lander County, Nevada, dated March 31, 2018; the Hollister Mine dated May 31, 2017, amended August 9, 2017; and the Midas Mine dated August 31, 2014, amended April 2, 2015. Copies of these technical reports are available under Hecla’s and Klondex’s profiles on SEDAR at www.sedar.com. Mr. Allen and Mr. Blair reviewed and verified information regarding drill sampling, data verification of all digitally collected data, drill surveys and specific gravity determinations relating to the Casa Berardi Mine. The review encompassed quality assurance programs and quality control measures including analytical or testing practice, chain-of-custody procedures, sample storage procedures and included independent sample collection and analysis. This review found the information and procedures meet industry standards and are adequate for Mineral Resource and Mineral Reserve estimation and mine planning purposes. Stock Quotes All stock price quotes and historical stock price data on the site are provided by third parties, are for informational purposes only, and are not intended for trading purposes. 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