I N V E S TO R FAC T S H E E T – J U N E 2 0 1 3 Hecla Mining Company (NYSE:HL) is not only the largest and one of the lowest-cost U.S. silver producers, but also a growing low-cost gold producer. Hecla’s acquisition of Aurizon Mines Ltd. and the Casa Berardi mine was completed on June 1, 2013. Hecla owns and operates three properties on district-sized land packages in mining-friendly North American jurisdictions: Greens Creek in Alaska, one of the largest and highest-margin primary silver mines in the world; the newly revitalized Lucky Friday silver mine in North Idaho; and the newly acquired Casa Berardi in Quebec, expected to produce 125,000 – 130,000 ounces of gold this year. Projecting 2013 company-wide silver production of approximately 8- 9 million ounces – and exploration and pre-development programs designed with the goal to grow silver production to 15 million ounces by 2017 – Hecla anticipates generating strong cash flow growth in the coming years while maintaining a strong balance sheet. Multiple Secure Revenue Streams Low Political Risk Jurisdictions Strong Cash Flow Generation Share Performance NYSE: HL (as of 06/03/13) O P E R AT I N G P R O P E R T I E S Share Price: 52-Week Range: Basic Shares: Fully Diluted: Market Capitalization: High Cash Margins $ 3.95 $ 2.95 - $ 6.94 342.2 million 367 million $ 1.4 B Greens Creek – Admiralty Island, Alaska ■■ One of the world’s largest and lowest-cost primary silver mines ■■ Produced approx. 200M oz. of silver and 1.5M oz. of gold since startup in 1989 ■■ 6.4M oz. of silver production in 2012; 1.8M oz. in Q1 2013 ■■ Mine life est. 10+ years Lucky Friday – Mullan, Idaho ■■ Operations and production resumed in Q1 2013 ■■ Expect production to ramp up and costs to lower through Q2 2013 ■■ Expect full-year production of more than 2M oz., increasing to 3M oz. in 2014 ■■ Mine life est. 25+ years K E Y G R O W T H I N I T I AT I V E S Casa Berardi – Val D’Or, Quebec ■■ Expected 2013 production of 125,000 to 130,000 oz. of gold ■■ Complete shaft-deepening project in late 2013 ■■ Upside potential with completion of paste back-fill plant (Q3 2013) and long-term mill expansion ■■ Mine life est. 10+ yrs. Lucky Friday #4 Shaft – The #4 Shaft project construction is expected to be completed in early 2016. It is expected to increase silver production by 60% from approximately 3M to 5M oz. per year, mainly due to an expected increase in average annual grade from 10.4 to up to 14.1 oz. of silver per ton. San Juan Silver – Underground drilling in the Equity Vein system through Q2 2013 will follow up on high-grade surface drill intersections where the Equity and Amethyst mineralization trends converge. Currently constructing the Bulldog 2800-foot decline which has now advanced over 1,300 feet. The expected Q4 2013 completion of the decline should allow confirmation of the resource and advancement of the ongoing scoping and economic studies. Strong Investment Fundamentals Strong Financial Position Established Work Force Commitment to Safety Three High Quality, Long-Life Operations Greens Creek Admiralty Island, Alaska Opinaca / Wildcat James Bay, Quebec Corporate Office Vancouver, BC Corporate Office Coeur d’Alene, Idaho Casa Berardi Val d’Or, Quebec Silver Valley Wallace, Idaho Fayolle Val d’Or, Quebec Lucky Friday Mullan, Idaho Marban Block Val d’Or, Quebec Monte Cristo Esmeralda Co., Nevada Heva–Hosco Val d’Or, Quebec San Juan Silver Creede, Colorado San Sebastian Durango, Mexico San Sebastian – In 2012, re-examination of district potential near the past-producing Francine Vein led to the discovery of the Middle Vein, which has both precious-metal-rich and base-metal-rich sulfide mineralized zones. Scoping studies are in progress to determine the production viability, rate, and sequencing of mining the three resource areas (Hugh Zone and Middle and Andrea Veins) and are expected to be completed in Q3 2013. A ramp is being engineered for initial construction (expected this year) to allow access to both the Hugh Zone and Middle Vein. Metallurgical, hydrological, and geotechnical studies are also advancing. corporate office operating property pre-development project exploration project Quebec – Heva-Hosco: An advanced stage exploration project with a large in-pit gold resource at Hosco and additional gold resources at Heva and the Hosco West Extension areas located 20 kilometres east of Rouyn-Noranda, Quebec. It has excellent exploration potential and infrastructure. The Fayolle Property: An advanced stage exploration joint venture with Typhoon Exploration Inc., located 10 kilometres north of the Heva and Hosco West Extension areas in Quebec. An updated mineral resource estimate was finalized in Q3 2012. The Marban Block Property: An advanced stage exploration joint venture with Niogold Mining Corporation located in the Malartic gold camp in the Abitibi region, Quebec. A resource update is underway. Financial Highlights (dollars in thousands, except per share amounts, for end of Q1 March 31, and the year ended Dec. 31) Q1/13 2012 2011 2010 2009 2008 Sales of products $ 76,450$321,143$477,634$418,813$312,548$ 204,665 Net income (loss) from continuing operations 11,094 14,954 151,164 48,983 67,826 (37,173) Cash provided by operating activities 11,360 69,016 69,891 197,809 119,165 11,046 Cash and cash equivalents at end of reporting period 168,614 190,984 266,463 283,606 104,678 36,470 Dividend per Common Share 0.0125 0.06 0.02 – – – Leading Silver Producer with Strong Cash Margins (Greens Creek and Lucky Friday) Largest Institutional Owners (reported as of 03/31/13) Van Eck Associates Corporation The Vanguard Group, Inc. BlackRock Institutional Trust Company, N.A. State Street Global Advisors (US) Dimensional Fund Advisors, LP C.S. McKee, L.P. Kestrel Investment Management Corp. Credit Suisse Securities (USA) LLC Northern Trust Investments, N.A. Susquehanna Financial Group, LLLP Analyst Coverage Michael Jalonen, BofA Merrill Lynch Andrew Kaip, BMO Capital Markets Steven Butler, Canaccord Genuity Jorge Beristan, Deutsche Bank John Bridges, JP Morgan Trevor Turnbull, Scotia Capital, Inc. Michael Dudas, Stevne, Agee & Leach, Inc. Qualified Person Dean McDonald, P.Geo., Vice President - Exploration of Hecla Mining Company, who serves as a Qualified Person under National Instrument 43-101, supervised the preparation of the scientific and technical information concerning Hecla’s Greens Creek and Lucky Friday mines in this fact sheet. Christian Bourcier, P.Eng., General Manager for Casa Berardi, who serves as a Qualified Person under National Instrument 43-101, supervised the preparation of the scientific and technical information concerning Hecla’s Casa Berardi mine in this fact sheet. Copies of these technical reports are available for each of these properties as filed on SEDAR at www.sedar.com. (1) Total cash cost per ounce of silver represents a non-U.S. Generally Accepted Accounting Principles (GAAP) measurement. (2) Realized prices are calculated by dividing gross revenues for each metal by the payable quantities of each metal included in the concentrate and doré sold during the period. Delivering Growth and Value Through Gold (Casa Berardi)(1) Cautionary Statements Statements made which are not historical facts, such as anticipated payments, litigation outcome (including settlement negotiations), production, sales of assets, exploration results and plans, prospects and opportunities including reserves, resources, and mineralization, costs, and prices or sales performance are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “may”,“will”,“should”,“expects”,“intends”,“projects”,“believes”,“estimates”, “targets”,“anticipates” and similar expressions are used to identify these forward-looking statements. 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. 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. (1) Hecla’s acquisition of Aurizon Mines Ltd. and the Casa Berardi mine was complete on June 1, 2013. (2) Total cash cost per ounce of gold represents a non-U.S. Generally Accepted Accounting Principles (GAAP) measurement. (3) Realized prices are calculated by dividing gross revenues for each metal by the payable quantities of each metal included in the concentrate and doré sold during the period. Reconciliation of Cash Costs per Ounce to Generally Accepted Accounting Principles (GAAP) (dollars and ounces in thousands, except per ounce – unaudited) Q1/13 2012 2011 2010 2009 2008 2007 Total cash costs (1) $ 13,346$ 17,262$ 10,934$ (15,435)$ 20,958$ 36,621$ (15,873) Divided by silver ounces produced 1,901 6,394 9,483 10,566 10,989 8,709 5,643 Total cash cost per ounce produced $7.02 $2.70 $1.15 $(1.46) $1.91 $4.20 $(2.81) Reconciliation to GAAP: Total cash costs $ 13,346$ 17,262$ 10,934$ (15,435)$ 20,958$ 36,621$ (15,873) Depreciation, depletion and amortization 14,007 43,522 47,066 60,011 62,837 35,207 12,323 Treatment costs (18,597) (73,355) (99,019) (92,144) (80,830) (70,776) (27,617) By-products credits 46,577 190,916 254,372 267,272 206,608 164,963 112,079 Change in product inventory (4,604) (1,381) (4,805) 3,660 310 20,254 (1,261) Suspension-related costs (2) – – 4,135 – – – – Reclamation and other costs 103 663 (44) 630 1,596 537 203 Costs of sales and other direct production costs and depreciation, depletion and amortization (GAAP) $50,832 $177,627 $212,639 $223,994 $211,479 $186,806 $79,854 (1) Cash cost per ounce of silver represents a non-U.S. Generally Accepted Accounting Principles (GAAP) measurement that the Company believes provide management and investors an indication of net cash flow. Management also uses this measurement for the comparative monitoring of performance of mining operations period-to-period from a cash flow perspective. “Total cash cost per ounce” is a measure developed by mining companies in an effort to provide a comparable standard; however, there can be no assurance that our reporting of this non-GAAP measure is similar to that reported by other mining companies. Cost of sales and other direct production costs and depreciation, depletion and amortization, was the most comparable financial measures calculated in accordance with GAAP to total cash costs. (2) Various accidents and other events resulted in temporary suspensions of production at the Lucky Friday unit during 2011 and throughout 2012. Care-and-maintenance, mine rehabilitation, investigation, and other costs incurred during the suspension periods not related to production have been excluded from total cash costs and the calculation of total cash cost per ounce produced. Reconciliation of Cash Costs per Ounce to International Financial Reporting Standards (IFRS) (2010-2013) and Generally Accepted Accounting Principles (GAAP) (2007-2009) (dollars and ounces in thousands, except per ounce – unaudited) Q1/2013 2012 2011 2010 2009 2008 Cash Operating Costs (1) – US$000 $ 21,276 $ 93,298 $ 88,705 $ 75,758 $ 63,896 $ 63,664 Divided by gold ounces sold 26,200 133,990 165,250 139,950 159,275 159,404 Total cash cost per ounce sold – US$/oz $812 $696 $537 $541 $401 $399 Reconciliation to IFRS/GAAP: Cash Operating Costs – US$000 $ 21,276 $ 93,298 $ 88,705 $ 75,758 $ 63,896 $ 63,664 Average US$/C$ exchange rate $ 1.008 $ 1.000 $ 0.989 $ 1.030 $ 1.142 $ 1.070 Cash Operating Costs – C$000 $ 21,453 $ 93,259 $ 87,735 $ 78,031 $ 72,936 $ 68,120 Plus: Silver by-product credits $ 181 $ 990 $ 1,063 $ 632 $ 543 $ 485 Plus: Depreciation and amortization $8,905 $37,539 $38,927 $34,060 $36,514 $35,582 Costs of sales and other direct production costs and depreciation, depletion and amortization (IFRS/GAAP) – C$000 $30,539 $131,788 $127,725 $112,723 $109,993 $104,187 2007 $ 53,192 160,600 $331 $ 53,192 $ 1.080 $ 57,447 $ 392 $29,754 $87,593 (1)Cash cost per ounce of gold represents a non-U.S. Generally Accepted Accounting Principles (GAAP) measurement that the Company believes provide management and investors an indication of net cash flow. Management also uses this measurement for the comparative monitoring of performance of mining operations period-to-period from a cash flow perspective. “Total cash cost per ounce” is a measure developed by mining companies in an effort to provide a comparable standard; however, there can be no assurance that our reporting of this non-GAAP measure is similar to that reported by other mining companies. Cost of sales and other direct production costs and depreciation, depletion and amortization, was the most comparable financial measures calculated in accordance with GAAP to total cash costs. U.S. Corporate Office 6500 N. Mineral Drive, Suite 200 Coeur d’Alene, Idaho 83815-9408 208.769.4100 Canadian Corporate Office Suite 970, 800 W. Pender Street Vancouver, BC, Canada V6C 2V6 604.682.6201 Investor Inquiries 800.432.5291 hmc-info@hecla-mining.com www.hecla-mining.com