REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Board of Directors and Shareholders Hecla Mining Company Coeur d’Alene, Idaho We have audited the accompanying consolidated balance sheets of Hecla Mining Company as of December 31, 2012 and 2011 and the related  consolidated statements of income and comprehensive income, stockholders’ equity, and cash flows for each of the three years in the period ended  December 31, 2012. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on  these financial statements based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards  require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement.  An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the  accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We  believe that our audits provide a reasonable basis for our opinion. In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Hecla Mining  Company at December 31, 2012 and 2011, and the results of its operations and its cash flows for each of the three years in the period ended  December 31, 2012, in conformity with accounting principles generally accepted in the United States of America. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Hecla Mining  Company’s internal control over financial reporting as of December 31, 2012, based on criteria established in  Internal Control – Integrated Framework  issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated February 25, 2013 expressed an  unqualified opinion thereon. /s/ BDO USA, LLP Spokane, Washington February 25 2013 F-2 [ HL:10-K ] 