Investors: 800.432.5291 Français Legal/Privacy Careers Contact Responsible Mining Investors Quality Assets News & Events Our Company Overview Reserves & Resources Operating Mines Pre-Development Exploration Overview In 2020, Hecla’s Greens Creek mine produced 10.5 million ounces of silver at an average cash cost per ounce of $5.49 (1). Hecla currently produces silver from two silver mines, Greens Creek and Lucky Friday. The Lucky Friday mine produced 2.0 ounces of silver in 2020. Lucky Friday union members ratified the collective bargaining agreement in January 2020; a ramp-up to historical production was reached in the fourth quarter of 2020. The Casa Berardi gold mine produced 121,493 ounces of gold in 2020 at an average cash cost per ounce of $1,131 (1). In 2020, the San Sebastian mine produced 954,772 ounces of silver and production was completed in the fourth quarter. The Nevada operations produced 31,756 ounces of gold in 2020; Fire Creek is expected to be placed on care and maintenance in the second quarter of 2021. (1) Cash cost, after of by-product credits, per silver or 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. Greens Creek Lucky Friday Casa Berardi North America Property Map Reserves & Resources (As of December 31, 2020 unless otherwise noted) Tons Silver Gold Lead Zinc Copper Silver Gold Lead Zinc Copper Proven Reserves(1) (000) (oz/ton) (oz/ton) (%) (%) (%) (000 oz) (000 oz) (Tons) (Tons) (Tons) Greens Creek (2) 3 21.8 0.10 3.7 7.8 – 70 0.3 120 250 – Lucky Friday (2) 4,393 14.2 - 8.8 4.1 – 62,290 – 386,210 180,060 – Casa Berardi - Open Pit (3) 4,437 - 0.09 – – – - 410 – – – Casa Berardi - Underground (3) 1,038 - 0.15 - 158 Fire Creek (2,4) 62 0.4 0.48 - - - 28 30 - - - Total 9,933 62,388 598 386,330 180,310 – Probable Reserves Greens Creek (2) 8,975 12.4 0.09 2.8 7.3 – 111,333 827 254,840 652,170 – Lucky Friday (2) 1,372 10.7 - 7.2 3.9 – 14,702 - 99,170 53,190 – Casa Berardi - Open Pit (3) 9,763 - 0.08 – – – - 744 - - – Casa Berardi - Underground (3) 1,533 - 0.15 - 231 - - Fire Creek (2,4) 1 0.9 0.71 - - - 1 1 - - - Total 21,643 126,036 1,802 354,010 705,360 – Proven & Probable Reserves Greens Creek (2) 8,978 12.4 0.09 2.8 7.3 - 111,404 828 254,960 652,240 - Lucky Friday (2) 5,764 13.4 - 8.4 4.0 - 76,992 - 485,380 223,250 - Casa Berardi - Open Pit (3) 14,200 - 0.08 - - - - 1,153 - - - Casa Berardi - Underground (3) 2,571 - 0.15 - - - - 389 - - - Fire Creek (2,4) 63 0.5 0.48 - - - 29 31 - - - Total 31,576 188,424 2,400 740,340 895,670 - Measured Resources Greens Creek (5) 297 12.9 0.11 3.1 10.3 - 3,837 33 9,310 30,500 - Lucky Friday (5,6) 9,007 7.6 - 4.8 2.4 - 68,543 - 30,950 218,740 - Casa Berardi - Open Pit (7) 824 - 0.09 - - - - 71 - - - Casa Berardi - Underground (7) 2,231 - 0.15 - - - - 331 - - - San Sebastian (5,8) - - - - - - - - - - - Fire Creek (5,9) 20 0.7 0.50 - - - 14 10 - - - Hollister (5,10) 18 4.9 0.59 - - - 87 10 - - - Midas (5,11) 2 7.6 0.68 - - - 14 1 - - - Heva (12) - - - - - - - - - - - Hosco (12) - - - - - - - - - - - Rio Grande Silver (13) - - - - - - - - - - - Star (14) - - - - - - - - - - - Total 12,399 72,495 456 440,260 249,240 - Indicated Resources Greens Creek (5) 8,599 12.9 0.10 3.0 8.2 - 110,844 848 256,790 708,520 - Lucky Friday (5,6) 2,275 7.8 - 5.3 2.2 - 17,844 - 120,390 50,970 - Casa Berardi - Open Pit (7) 1,621 - 0.06 - - - - 97 - - - Casa Berardi - Underground (7) 5,424 - 0.14 - - - - 750 - - - San Sebastian (5,8) 2,541 5.9 0.06 1.9 2.9 1.2 14,985 149 22,420 34,100 14,650 Fire Creek (5,9) 114 1.0 0.45 - - - 114 51 - - - Hollister (5,10) 70 1.9 0.58 - - - 130 40 - - - Midas (5,11) 76 5.0 0.37 - - - 3,064 229 - - - Heva (12) 1,266 - 0.06 - - - - 76 - - - Hosco (12) 29,287 - 0.04 - - - - 1,202 - - - Rio Grande Silver (13) 516 14.8 - 2.1 1.1 - 7,620 - 10,760 5,820 - Star (14) 1,126 2.9 - 6.2 7.4 - 3,301 - 69,900 83,410 - Total 52,913 155,266 3,245 480,260 882,620 14,650 Measured & Indicated Resources Greens Creek (5) 8,895 12.9 0.10 3.0 8.3 - 114,681 881 266,110 739,020 - Lucky Friday (5,6) 11,282 7.7 - 4.9 2.4 - 86,386 - 551,340 269,710 - Casa Berardi - Open Pit (7) 2,445 - 0.07 - - - - 168 - - - Casa Berardi - Underground (7) 7,656 - 0.14 - - - - 1,081 - - - San Sebastian (5,8) 2,541 5.9 0.06 1.9 2.9 1.2 14,985 149 22,420 34,100 14,650 Fire Creek (5,9) 134 1.0 0.46 - - - 128 61 - - - Hollister (5,10) 88 2.5 0.58 - - - 217 51 - - - Midas (5,11) 78 5.7 0.43 - - - 444 33 - - - Heva (12) 1,266 - 0.06 - - - - 76 - - - Hosco (12) 29,287 - 0.04 - - - - 1,202 - - - Rio Grande Silver (13) 516 14.8 - 2.1 1.1 - 7,620 - 10,760 5,820 - Star (14) 1,126 2.9 - 6.2 7.4 - 3,301 - 69,900 83,410 - Total 65,312 227,760 3,701 920,530 1,132,060 14,650 Inferred Resources Greens Creek (5) 1,767 13.2 0.08 2.8 7.0 - 23,370 145 49,670 123,480 - Lucky Friday (5,6) 3,069 8.3 - 6.3 2.7 - 25,359 - 192,200 83,350 - Casa Berardi - Open Pit (7) 9,229 - 0.06 - - - - 508 - - - Casa Berardi - Underground (7) 2,447 - 0.18 - - - - 445 - - - San Sebastian (5,15) 2,923 5.9 0.05 1.6 2.3 0.9 17,188 133 6,070 8,830 3,330 Fire Creek (5,9) 765 0.5 0.51 - - - 394 392 - - - Fire Creek - Open Pit (16) 74,584 0.1 0.03 - - - 5,232 2,178 - - - Hollister (5,10) 642 3.0 0.42 - - - 1,916 273 - - - Midas (5,11) 1.057 5.0 0.40 - - - 5,280 424 - - - Heva (12) 2,787 - 0.08 - - - - 216 - - - Hosco (12) 17,726 - 0.04 - - - - 663 - - - Rio Grande Silver (17) 3,078 10.7 0.01 1.3 1.1 - 33,097 36 40,990 34,980 - Star (14) 3,157 2.9 - 5.6 5.5 - 9,432 - 178,670 174,450 - Monte Cristo (18) 913 0.3 0.14 - - - 271 131 - - - Rock Creek (19) 100,086 1.5 - - - 0.7 148,736 - - - 658,680 Montanore (20) 112,185 1.6 - - - 0.7 183,346 - - - 759,420 Total 336,416 453,621 5,543 467,300 425,090 1,421,430 (footnotes) 2020 Reserves & Resources PDF Investor Kit Annual Report Corporate Presentation Investor Fact Sheet Receive Email Alerts Quarterly Results Results are unavailable at this time. view all Current News News is unavailable at this time. view all subscribe Events & Webcasts Events are unavailable at this time. view all © 2021 Hecla Mining Company