Reserves and Resources (cont.) 2022 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 4,030,000 0.066 4.39 267,000 17,689,000 Rochester Nevada, USA 94,296,000 0.002 0.33 187,000 31,452,000 Kensington Alaska, USA 2,412,000 0.276 - 665,000 - Wharf South Dakota, USA 1,166,000 0.022 - 26,000 - Silvertip Canada 680,000 - 11.47 9.88% 7.71% - 7,798,000 134,462,000 104,870,000 Lincoln Hill Nevada, USA 4,642,000 0.012 0.34 58,000 1,592,000 Total 107,226,000 0.011 0.55 1,203,000 58,531,000 134,462,000 104,870,000 INDICATED RESOURCES Palmarejo Mexico 16,704,000 0.054 3.42 907,000 57,062,000 Rochester Nevada, USA 15,507,000 0.002 0.34 27,000 5,332,000 Kensington Alaska, USA 1,309,000 0.293 - 384,000 - Wharf South Dakota, USA 13,303,000 0.020 - 267,000 - Silvertip Canada 6,375,000 - 8.21 9.65% 4.84% - 52,317,000 1,230,898,000 617,279,000 Lincoln Hill Nevada, USA 27,668,000 0.011 0.31 306,000 8,655,000 Total 80,866,000 0.023 1.53 1,891,000 123,367,000 1,230,898,000 617,279,000 MEASURED AND INDICATED RESOURCES Palmarejo Mexico 20,734,000 0.057 3.61 1,174,000 74,751,000 Rochester Nevada, USA 109,803,000 0.002 0.33 214,000 36,784,000 Kensington Alaska, USA 3,722,000 0.282 - 1,049,000 - Wharf South Dakota, USA 14,468,000 0.020 - 293,000 - Silvertip Canada 7,056,000 - 8.52 9.68% 5.12% - 60,115,000 1,365,360,000 722,150,000 Lincoln Hill Nevada, USA 32,310,000 0.011 0.32 364,000 10,247,000 Total Measured and Indicated Resources 188,092,000 0.016 0.97 3,094,000 181,897,000 1,365,360,000 722,150,000