Hecla Mining — Aug 4, 2026 release

2,3,5 • At Lucky Friday, guidance for costs applicable to sales (excludes depreciation) of $139 million. Cash cost guidance is lowered to $9.00-$9.75 from the prior $10.25-$11.00 (after by-product credits), per silver ounce, and the lower end of AISC raised to $24.50-$26.00 from $23.50-$26.00 (after by-product credits), per silver ounce to reflect the higher sustaining capital investment guidance at the mine. 2,3,5   2026 Capital and Exploration   Lower end of total capital (growth and sustaining) investment guidance raised, top end reiterated, now at $208-$223 million from $204-$223 million.   • Greens Creek's capital investment is primarily attributable to mine development and the expansion of its tailings facility, which, when completed is expected to provide tailings storage capacity through 2045. • Lucky Friday's capital investment is heavily tied to underground development, a new tailings facility and a surface cooling project, which is expected to be completed by September and to increase the designed cooling capacity at the mine to support its reserve mine-life of fifteen years. • Expected capital investment at Keno Hill comprises mine development, expansion of its tailings facility, and infrastructure projects.   Exploration and pre-development expenditures remain unchanged and are expected to be $55 million, with the focus at Greens Creek and Keno Hill, Nevada and Lucky Friday.   Metal Prices and FX rate assumptions for 2H26 (1H26 actuals).