Reserves and Resources 2022 Proven and Probable Mineral Reserves Location Short tons Grade Contained Gold (oz/t) Silver
(oz/t) Gold (oz) Silver (oz) PROVEN RESERVES Palmarejo Mexico 4,081,000 0.059 4.21 241,000 17,172,000 Rochester Nevada, USA 425,748,000 0.003 0.39 1,079,000 166,172,000 Kensington Alaska,
USA 939,000 0.180 - 169,000 - Wharf South Dakota, USA 6,379,000 0.031 - 199,000 - Total 437,148,000 0.004 0.42 1,688,000 183,343,000 PROBABLE
RESERVES Palmarejo Mexico 14,119,000 0.050 3.44 712,000 48,565,000 Rochester Nevada, USA 38,001,000 0.002 0.36 93,000 13,803,000 Kensington Alaska, USA 1,273,000 0.189 - 240,000 - Wharf South
Dakota, USA 27,328,000 0.026 - 709,000 - Total 80,721,000 0.022 0.77 1,754,000 62,367,000 PROVEN AND PROBABLE RESERVES Palmarejo Mexico 18,201,000 0.052 3.61 953,000 65,736,000 Rochester Nevada,
USA 463,749,000 0.003 0.39 1,173,000 179,975,000 Kensington Alaska, USA 2,212,000 0.184 - 408,000 - Wharf South Dakota, USA 33,707,000 0.027 - 908,000 - Total Proven and Probable
Reserves 517,868,000 0.007 0.47 3,443,000 245,711,000