X0508 4 2024-08-20 0 0001581160 Hecla Ltd HL 0001481905 Sienko David C 6500 N. MINERAL DRIVE, SUITE 200 COEUR D'ALENE ID 83815 0 1 0 0 SR. VP & General Counsel 0 Common Stock 2024-08-20 4 A 0 5092 6.01 A 1006307 D Common Stock 2024-08-20 4 J 0 13351 0 A 13351 I Held in 401(k) Plan Account Performance rights 0 2024-08-20 4 A 0 5092 0 A 2027-01-01 2027-01-01 Common Stock 5092 1006307 D Mr. Sienko was promoted to Sr. Vice President - General Counsel on 8/16/2024. Award of restricted stock units that vest as follows: 1,697 shares on June 21, 2025; 1,697 shares on June 21, 2026, and 1,698 shares on June 21, 2027. Consists of 788,968 shares held directly, 115,411 performance-based shares and 101,928 unvested restricted stock units. As part of his promotion, Mr. Sienko was also awarded performance-based units representing the contingent right to receive between $15,300 and $61,200 worth of Hecla Mining Company common stock based on Hecla Mining Company's Total Shareholder Return performance over the 3-year period (January 1, 2024 to December 31, 2026) relative to our peers. Examples of the potential grant of shares to Mr. Sienko under this plan are as follows: 100th percentile rank among peers = maximum award at 200% of target ($61,200 in stock); 50th percentile rank among peers = target award at grant value ($30,600 in stock); and 25th percentile rank among peers = threshold award at 25% of target ($15,300 in stock). See footnote 2. Held as 1,115.18 units in Mr. Sienko's 401(k) account under the Hecla Mining Company Capital Accumulation Plan, and estimated to be 13,351 shares. Tami D. Whitman, Attorney-in-Fact for David C. Sienko 2024-08-21