Hecla Mining HL-PB

Hecla Mining Company is a producer of precious and base metals that operates mines across North America. The company discovers acquires and develops mineral properties and produces concentrates containing silver gold lead zinc copper and carbon material as well as unrefined doré containing silver and gold. Hecla Mining Company conducts its activities with a focus on safe environmentally responsible and cost effective practices.

Hecla Mining Company generates revenue primarily from the sale of its metal concentrates to custom smelters metal traders and third party processors. It also sells unrefined doré and loaded carbon and precipitates to refiners who further process the material before the metals are sold to traders. Revenue fluctuates with the market prices of silver gold lead zinc and copper.

The company operates through the following segments: Greens Creek Lucky Friday Keno Hill and Casa Berardi.

• Greens Creek, located on Admiralty Island near Juneau Alaska, is a 100 owned mine in production since 1989 that produces silver zinc and precious metals flotation concentrates and gravity concentrate containing payable silver gold and lead which is processed into unrefined doré for sale to refiners and also produces copper bearing concentrates at times, with output sold to custom smelters and metal traders.

• Lucky Friday, situated in northern Idaho, is a 100 owned mine operating since 1958 that extracts silver and zinc flotation concentrates containing payable silver zinc and lead which are sold to custom smelters and metal traders.

• Keno Hill, located in the Keno Hill Silver District of the Yukon Territory Canada, is a 100 owned asset acquired in September 2022 through the purchase of Alexco, with production ramping up since June 2023 and currently delivering silver and precious metal flotation concentrates at below commercial levels for sale to custom smelters and metal traders.

• Casa Berardi, positioned in the Abitibi region of northwestern Quebec Canada, is a 100 owned mine in production since late 2006 that produces unrefined gold and silver doré bars and loaded carbon and precipitates which are shipped to refiners for metal extraction and at times sold directly to refiners.

Hecla Mining Company holds a long standing position in the mining industry with over a century of experience in precious and base metals production. Its competitive strengths include a diversified asset base across the United States and Canada a focus on return on invested capital and free cash flow generation and a commitment to safe operations environmental stewardship and cost effective practices.

Hecla Mining Company sells its concentrates to custom smelters metal traders and third party processors and its doré and loaded carbon to refiners and metal traders. No specific customer names are disclosed in the filing.