Hecla Posts Investor Presentation Regarding Its All-Cash CDN$1.80 Per Share Offer for U.S. Silver Corporation, Reminds Shareholders to Take Immediate Action

The Hecla Offer provides significant, immediate and certain value and liquidity to U.S. Silver shareholders, but is conditional on the proposed transaction with RX Gold & Silver NOT proceeding U.S. Silver shareholders need to take action immediately and before the August 2, 2012 proxy voting deadline Investor presentation available for download at www.hecla-mining.com Hecla Mining Company HL (“Hecla”) has posted to its website (www.hecla-mining.com) an investor presentation regarding its offers to acquire all of the outstanding common shares of U.S. Silver Corporation USA (“U.S. Silver”) for CDN$1.80 per common share in cash and to acquire each outstanding common share purchase warrant for CDN$0.205 (its “in the money” amount based on such price per common share) (together, the “Hecla Offer”). More specifically, the presentation outlines the benefits of the Hecla Offer, the risks associated with the proposed U.S. Silver-RX Gold and Silver (“RX”) transaction and the steps that U.S. Silver shareholders need to take to vote against the proposed RX transaction prior to the voting deadline.