HECLA MINING CO/DE/

1. On June 21, 2023, Mr. Brown was awarded performance rights representing the contingent right to receive between $63,250 and $253,000 worth of Hecla Mining Company common stock based on Hecla Mining Company's Total Shareholder Return performance over the 3-year period (January 1, 2023 to December 31, 2025) based on the following percentile rank within Hecla's peer group companies: 100th percentile rank among peers = maximum award at 200% of target ($253,000 in stock); 40th to 60th percentile rank among peers = target award at grant value ($126,500 in stock); and 25th percentile rank among peers = threshold award at 50% of target ($63,250 in stock).

2. In reporting the number of performance rights at the time of the award, Mr. Brown assumed a target (i.e.,$126,500 in stock), with the common stock valued at the closing price on the day of the award ($5.05), and therefore reported an award of 25,050 performance rights. Based on Hecla Mining Company's total shareholder return ranking, Mr. Brown's award value was 100% and he therefore received 25,050 shares in settlement of the award (with the shares valued at the $5.05 closing price on June 21, 2023).

3. Consists of outstanding performance rights.

4. See footnotes (1) and (2). Shares received upon settlement of performance rights awarded in June 2023.

5. Consists of 372,264 shares held directly, and 106,785 unvested restricted stock units.

6. Shares withheld for tax liability on 25,050 performance rights that vested.

7. Consists of 358,862 shares held directly, and 106,785 unvested restricted stock units.