Reserves and Resources (cont.) 2020 Measured and Indicated Mineral Resources (excluding Reserves) Location Short tons Grade Contained Gold (oz/t) Silver (oz/t) Zinc (%) Lead (%) Gold (oz) Silver (oz) Zinc (lbs) Lead (lbs) MEASURED RESOURCES Palmarejo Mexico 1,840,000 0.052 3.67 95,000 6,746,000 Rochester Nevada, USA 240,568,000 0.002 0.24 388,000 57,160,000 Kensington Alaska, USA 2,390,000 0.233 - 556,000 - Wharf South Dakota, USA 12,992,000 0.019 - 245,000 - Silvertip Canada 138,000 - 11.17 9.83% 7.88% - 1,541,000 27,050,000 21,670,000 Lincoln Hill Nevada, USA 4,642,000 0.012 0.34 58,000 1,592,000 La Preciosa Mexico 9,536,000 0.005 3.04 45,000 29,001,000 Total 272,106,000 0.005 0.35 1,387,000 96,040,000 27,050,000 21,670,000 INDICATED RESOURCES Palmarejo Mexico 11,591,000 0.045 3.83 518,000 44,398,000 Rochester Nevada, USA 57,452,000 0.002 0.25 102,000 14,207,000 Kensington Alaska, USA 1,204,000 0.228 - 274,000 - Wharf South Dakota, USA 12,717,000 0.028 - 360,000 - Silvertip Canada 2,206,000 - 7.20 9.41% 4.41% - 15,892,000 415,000,000 194,780,000 Lincoln Hill Nevada, USA 27,668,000 0.011 0.31 306,000 8,655,000 La Preciosa Mexico 19,141,000 0.006 3.98 118,000 76,185,000 Total 131,979,000 0.013 1.21 1,678,000 159,337,000 415,000,000 194,780,000 MEASURED AND INDICATED RESOURCES Palmarejo Mexico 13,431,000 0.046 3.81 613,000 51,144,000 Rochester Nevada, USA 298,020,000 0.002 0.24 489,000 71,368,000 Kensington Alaska, USA 3,594,000 0.231 - 830,000 - Wharf South Dakota, USA 25,710,000 0.024 - 605,000 - Silvertip Canada 2,344,000 - 7.44 9.43% 4.62% - 17,433,000 442,050,000 216,450,000 Lincoln Hill Nevada, USA 32,310,000 0.011 0.32 364,000 10,247,000 La Preciosa Mexico 28,677,000 0.006 3.67 163,000 105,186,000 Total Measured and Indicated Resources 404,086,000 0.008 0.63 3,064,000 255,377,000 442,050,000 216,450,000