NYSE HL: $5.24 +0.01 SILVER: US $22.41 +0.04 GOLD: US $1767.60 -14.30 Investors: 800.432.5291 Français Legal/Privacy Careers Contact Responsible Mining Investors Quality Assets News & Events Our Company Overview Operating Mines Alaska, USA Idaho, USA Quebec, Canada Casa Berardi Overview & History Production Reserves & Resources Exploration Future Plans Pre-Development Exploration Casa Berardi La Sarre, Quebec Hecla’s 100% owned Casa Berardi mine, is an underground/open pit gold mine located in western Quebec, a politically stable and mining friendly region, with good geology and infrastructure. In 2020, the mine produced 121,493 ounces of gold at a cash cost, after by-product credits, per gold ounce of $1,131 (1). The mine is expected to produce 128,000 to 132,000 ounces of gold in 2021 at a cash cost, after by-product credits, of $900 – $975 per ounce (1). (1) Cash cost, after by-product credits, per gold ounce represents a non-GAAP measurement, a reconciliation of which to cost of sales and other direct production costs and depreciation, depletion and amortization (GAAP) can be found in the legal page of this website. Overview & History The Casa Berardi mine is situated 95 kilometres north of La Sarre, Quebec and straddles a 37 kilometre section of the Casa Berardi fault. The Casa Berardi gold deposits are located along a five kilometre east-west mineralized corridor. They include the East and West mines, and the Principal Zones. The Casa Berardi gold deposits can be classified as an Archean sedimentary-hosted lode gold deposit. The gold mineralization is superimposed on a continuous graphitic mudrock unit corresponding to the Casa Berardi Fault plane. Gold occurs mainly south of the Casa Berardi Fault, and occasionally on both sides of the fault. The West Mine shaft deepening project, which included construction of loading pockets and other related infrastructure, was completed in the fourth quarter of 2014, and is improving mine operations by providing additional access to the 118 and 123 zones for transporting ore and waste from underground. Excavation of the 985 drift (previously referred to as 1010) from the deepened shaft is complete. This drift is expected to improve ventilation and material handling and also provide a platform for deeper exploration drilling. The Company began producing ore from the East Mine Crown Pillar (EMCP) pit in July 2016. Located near the East mine, the capital for this shallow pit project is expected to be $39 million over 5.5 years. The project has an expected IRR of 90%. Visit Hecla Quebec to learn more. Production Casa Berardi is an underground trackless mine accessed by declines and a shaft. The mining methods are longhole transversal stoping in 10 metres or more mineralization width, and longitudinal retreat stoping in narrower ore bodies. The mineralized zones put in reserves are of varying thickness, ranging from a few tens of meters to 3 meters, which is the minimum mining width. Most of the hanging walls are sub-vertical (55° to 85°), with typically the graphitic Casa Berardi fault at the footwall. In addition, ore in being produced from the East Mine Crown Pillar (EMCP) pit located near the East mine The mine has produced approximately 2.0 million recovered gold ounces since commencing production in 1988, including about 1.0 million recovered ounces since production recommenced in November 2006. (years ended December 31) 2016 2017 2018 2019 2020 Silver (ounces) 33,641 36,566 38,086 31,640 24,142 Gold (ounces) 145,975 156,653 162,744 134,409 121,492 Cash cost per ounce of gold, after by-product credits, ($/oz) (1) $764.00 $820.00 $800.00 $1,051.00 $1,121.00 (footnotes) Year-End Production PDF Technical Report NI 43-101 Technical Report for the Casa Berardi Mine, Northwestern Québec, Canada Reserves & Resources Information with respect to proven and probable ore reserves, measured, and inferred resources is set forth below. (As of December 31, 2020 unless otherwise noted) Tons Silver Gold Lead Zinc Silver Gold Lead Zinc (000) (oz/ton) (oz/ton) (%) (%) (000 oz) (000 oz) (Tons) (Tons) Open Pit - Proven Reserves (1,2) 4,437 – 0.09 – – – 410 – – Probable Reserves (1,2) 9,763 – 0.08 – – – 744 – – Proven and Probable Reserves (1,2) 14,200 – 0.08 – – – 1,153 – – Underground - Proven Reserves (1,2) 1,038 - 0.15 - - - 158 - - Probable Reserves (1,2) 1,533 - 0.15 - - - 231 - - Proven and Probable Reserves (1,2) 2,571 - 0.16 - - - 389 - - Open Pit - Measured Resources (3) 824 – 0.09 – – – 71 – – Indicated Resources (3) 1,621 – 0.06 – – – 97 – – M&I Resources (3) 2,445 – 0.07 – – – 168 – – Underground - Measured Resources (3) 2,231 - 0.15 - - - 331 - - Indicated Resources (3) 5,424 - 0.14 - - - 750 - - M&I Resources (3) 7,656 - 0.14 - - - 1,081 - - Open Pit - Inferred Resources (3) 9,229 – 0.06 – – – 508 – – Underground - Inferred Resources (3) 2,447 - 0.18 - - - 445 - - (footnotes) 2020 Reserves & Resources PDF Exploration At Casa Berardi in the fourth quarter of 2020, a new discovery was made in the 160 Zone 500 feet east of the current resource blocks and the zone is open in all directions. The discovery drillhole intersected 0.32 oz/ton gold over 9.5 feet estimated true width including 1.16 oz/ton gold over 2.0 feet estimated true width. Future Plans The Company began producing gold from the first surface pit in 2016. Once the EMCP is exhausted, it is expected that the Principal pit will begin operating to maintain the 2,900 tonnes per day throughput. Investor Kit Annual Report Corporate Presentation Investor Fact Sheet Receive Email Alerts Quarterly Results 11.04.2021 Hecla Reports Third Quarter 2021 Results view all Current News 11.29.2021 Hecla to Participate in Upcoming Investment Conferences view all subscribe Events & Webcasts 12.01.2021 Hecla Mining Company at Scotiabank Mining Conference view all © 2021 Hecla Mining Company