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Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2024: silver 8500000 oz, gold 55275 oz, lead 18320 t, zinc 51500 t.

The mill processes about 2,300 tons of ore each day. Ore is ground to less than 50 micrometres. The mine uses flotation and gravity processes to recover the metals. In 2024, 46% of tailings were reused as backfill.

The primary mining methods are cut-and-fill and longhole stoping.

Hecla is studying the economic potential of recovering and re-processing critical minerals from the mine's tailings, which include silver, gold, zinc, lead, copper, nickel, arsenic, barium, bismuth, cadmium, chromium, gallium, germanium, manganese, and vanadium. The company plans to increase throughput to 2,600 tons per day.

Hecla Mining Company's Kinskuch project was an exploration-stage asset located in the Golden Triangle region of British Columbia, Canada, near Alice Arm. Hecla held a 100% interest in the property, which consisted of 156 claims covering 146,780 acres. The project was considered prospective for silver, gold, copper, lead, and zinc, with geological targets including vein, massive sulfide, and porphyry-style mineralisation. In 2018, drilling defined silver-enriched base metal mineralisation along a strike length of 4.8 kilometres. The project surrounds the Big Bulk copper-gold porphyry system. Hecla transferred the property to Dolly Varden Silver Corporation in May 2025.

As of 2024, the mine employed approximately 512 people.

The Greens Creek mine, owned and operated by Hecla Mining Company, is an underground operation on Admiralty Island in southeast Alaska. It is one of the largest and lowest-cost primary silver mines in the world. The mine produces silver, gold, zinc, and lead. Major facilities include the mine, an ore concentrating mill, a dry stack tailings facility, a wastewater treatment plant, ship-loading facility, camp facilities, and a ferry dock. The mine operates 24 hours a day, 365 days a year. Power is primarily supplied by a local hydroelectric utility, with on-site diesel generators for backup.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2024: silver 8480000 oz, gold 55275 oz, lead 18320 t, zinc 51288 t, copper 1874 t.

The ore is processed at a concentrating mill that handles approximately 2,300 tonnes of ore per day. In 2025, the mill processed an average of 2,388 tpd. The process uses a flotation and gravity circuit to recover metals. For 2025, the metallurgical recoveries were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc.

The primary mining methods are cut-and-fill and longhole stoping.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This project is designed to increase the mine's reserve base and extend its life. In 2025, the mine's silver reserve base grew by 2.4 million ounces after accounting for production. One drill hole in the East Zone intersected 247.3 oz/ton silver, 1.94 oz/ton gold, 22.7% zinc and 12.1% lead over 7.7 feet. Hecla Mining Company plans to nearly double its company-wide exploration and pre-development investment to $55 million in 2026.

The Kinskuch property is located in the Golden Triangle of British Columbia and is considered underexplored and prospective for silver, gold, and copper mineralisation. In May 2025, Dolly Varden Silver Corporation completed the acquisition of 100% of the Kinskuch property from Hecla Mining Company. Hecla Mining retains a 2% net smelter return royalty, with Dolly Varden having the option to buy back 1% for $5 million. The property is now part of Dolly Varden Silver's larger Kitsault Valley Project, which also includes the Dolly Varden property, the Homestake Ridge property, and the Big Bulk property. The acquisition increased Dolly Varden's land package in the area to approximately 77,000 hectares. The Kinskuch property is covered by a five-year Exploration Permit on both Nisga'a and Gitanyow Traditional Lands.

The Kinskuch property is now part of Dolly Varden Silver's larger Kitsault Valley Project. Following the acquisition, Dolly Varden announced a 35,000-metre diamond drilling program for its 2025 exploration season, later expanded to 55,000 metres. The property is covered by a five-year Exploration Permit.

As of 2024, approximately 512 people were employed at the mine.

Production overview - 2025: silver 8700000 oz, gold 59349 oz; 2024: silver 8500000 oz, gold 55275 oz.

The mine uses flotation and gravity processes to recover the metals. The ore is processed at an on-site concentrating mill. Three types of concentrates are produced: a silver concentrate, a zinc concentrate, and a zinc-rich precious metals concentrate. A gravity circuit is used to recover free gold.

A recent decision by the U.S. Forest Service has approved an expansion of the mine's tailings disposal facility, extending the mine's production life by 12 to 18 years, past 2031 to at least 2043. The expansion will be implemented in two phases, providing additional capacity for mining waste material.

The San Juan Silver project is a high-impact development project for Hecla Mining, with exploration efforts focused on resource confirmation and expansion. The project encompasses the entire Creede Mining District, a historically significant silver-producing area. The primary focus is on the Bulldog Mine, which has a history of producing 25 million ounces of silver between 1969 and 1985. Hecla is strategically advancing the project to access underground infrastructure to confirm and expand the existing resource base. The company's exploration strategy includes a comprehensive approach, targeting 30 miles of permissive strike length along known mineralised structures.

Production overview - 2025: silver 36760000 oz, gold 26000 oz.

The Republic project is an exploration-stage asset for Hecla Mining Company in Washington, United States, focused on gold and silver. It covers 3,583 acres, encompassing historical productive trends. Hecla allocated 1% of its $22M 2025 exploration budget to Republic, with the total budget increasing to $55M in 2026. Hecla previously operated the Knob Hill mine in the district from 1981 to 1995.

Project Kinskuch, an exploration-stage asset, was held by Hecla Mining Company until its sale in 2025. The project is located in the Golden Triangle region of British Columbia, Canada. The Kinskuch project is situated in the Skeena Mining Division, approximately 50 kilometres southeast of Stewart and 20 kilometres north-northeast of Alice Arm. The property is considered a copper-gold porphyry prospect and also has potential for volcanogenic massive sulphide (VMS) and epithermal gold-silver mineralisation.

The acquisition of the Kinskuch property increased Dolly Varden's Kitsault Valley Project area to approximately 77,000 hectares. Dolly Varden Silver Corporation commenced a 35,000-metre diamond drilling program in 2025 for the Kitsault Valley Project, which includes the Kinskuch property.

approximately 512 people (as of 2024)

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18213 t, zinc 51387 t; 2024: silver 8500000 oz, gold 55275 oz, lead 18320 t, zinc 51288 t.

The mine utilises underground cut-and-fill and long-hole stoping methods. The mill has a daily processing capacity of approximately 2,300 tons of ore and uses flotation and gravity processes to recover the various metals. The ore is ground to a size of less than 50 micrometres.

Mine life extended by November 2024 approval for tailings disposal facility expansion (first phase adds 1.9 million cubic yards capacity). Five-year surface exploration plan approved in January 2025.

Production overview - 2023: gold 823000 oz.

Skeena Resources is focused on revitalising the past-producing Snip mine. An updated Mineral Resource Estimate was announced in September 2023. The mine is considered a potential satellite operation to the Eskay Creek Project, with ore from Snip possibly being trucked to and processed at the Eskay Creek mill. A detailed engineering study with project economics was anticipated to be released in the first half of 2024.

The Eskay Creek Revitalization Project is a redevelopment of a former underground mine into an open-pit operation in British Columbia, Canada. The project is currently under development, with initial production anticipated in Q2 2027.

Production overview - 2023: gold 260000 oz, silver 7650000 oz.

The project will use a conventional truck and shovel open-pit operation. Ore will be processed on-site to produce a gold-silver concentrate, which will then be transported to third-party smelters.

As of 28 February 2026, the project was 49% complete, with 66% of the total project costs contractually committed. The company received the Environmental Assessment Certificate in January 2026. The project is a redevelopment of a former underground mine that operated from 1994 to 2008.

The San Juan Silver project is a high-impact development project located in the Creede Mining District of Colorado. Hecla Mining Company holds a 100% interest in the project, which consolidates the entire 21-square-mile district under a single owner for the first time. The project includes the past-producing Bulldog mine, which yielded 25 million ounces of silver between 1969 and 1985. Current efforts are focused on strategic advancement to access underground infrastructure to confirm and expand known resources. San Juan Silver is allocated 1% of Hecla's exploration budget. As of the end of 2025, the Bulldog Mine focus has an inferred resource of 38 million ounces of silver, 49,400 tons of lead, and 39,850 tons of zinc. Hecla's 2025 annual report, released in April 2026, reiterated the company's focus on systematic operational improvement and accelerated exploration. The company's exploration strategy is centered on district-scale opportunities. Recent company reports from early 2026 do not indicate a change in the development status of the San Juan Silver project.

Production overview - 2025: silver 38 Moz, lead 49400 t, zinc 39850 t.

The Republic project is an exploration-stage opportunity wholly owned by Hecla Mining Company. It is located in the Republic Mining District in Ferry County, Washington. The project covers 3,583 acres and includes historical mines such as Knob Hill, Surprise, Lone Pine-Last Chance, Tom Thumb, and Golden Promise. Hecla designates 1% of its exploration budget to the Republic project, describing it as an emerging opportunity with significant potential concealed by post-mineral cover. The Washington State Department of Ecology lists the associated Hecla Knob Hill Mine site with a status of "Awaiting Cleanup". There is no current production, and no detailed timelines for future development have been released. Recent company reports and announcements have not provided any specific updates on exploration results, resource estimates, or development plans for the Republic project.

The Connaught property is an exploration-stage project located in the Yukon, Canada. Hecla Mining Company acquired the project in July 2023 through its acquisition of ATAC Resources Ltd. Hecla has classified Connaught as an exploration project and a property map on their website indicates a focus on copper. The property is situated 65 km west of Dawson City.

approximately 512 people (as of 2024)

Production overview - 2026: silver 2.2 Moz, gold 12900 oz; 2025: silver 8.7 Moz, gold 59349 oz, lead 18.2 kt, zinc 51.3 kt.

ore concentrating mill processing about 2,300 tons of ore per day, dry stacked tailings facility. Evaluating pyrite concentrate circuit and reprocessing tailings.

The primary mining methods are cut and fill and longhole stoping.

U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project in January 2026, aiming to increase reserve base and extend operational life.

San Juan Silver is a development-stage project operated by Hecla Mining Company, located in the Creede Mining District of Mineral County, Colorado, in the United States. The project is focused on the historic Bulldog mine area, which was a past producer of silver.

85 people

The Republic mine, more formally known as the Knob Hill Mine and also referred to by Hecla Mining Company as the Republic Unit, was a gold and silver mine located in the Republic Mining District, Ferry County, Washington, in the United States. Hecla acquired the operation through a merger with Day Mines, Inc., in 1981 and ran the mine until it ceased operations in February 1995 due to depletion of known ore reserves.

Production overview - 1994: gold 1 t, silver 9 t; 1993: gold 49601 oz, silver 276688 oz.

on-site mill, mill's crushing circuit

mill, crushing circuit

1984 discovery of the Golden Promise vein system, development of the Golden Promise shaft, decline ramp was developed, reaching a length of 13,000 feet

approximately 510 direct jobs. As of 2024, it employed about 512 people.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2024: silver 8480000 oz, gold 55275 oz, lead 18320 t, zinc 51288 t, copper 1874 t.

The mine uses flotation and gravity processes to recover silver, gold, lead, and zinc. Greens Creek was an early adopter of the dry-stack method for tailings management. Actual metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. Data-driven initiatives are being used to assess opportunities for reprocessing tailings.

The mine is an underground operation using cut-and-fill and long-hole stoping methods. Major facilities include the underground mine, an ore concentrating mill, a dry stack tailings facility, a ship-loading facility, camp facilities, and a ferry dock.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This surface exploration for silver, gold, lead, and zinc is expected to increase the project's reserve base and extend the mine life. Capital investment in 2026 is partly directed towards the expansion of the tailings facility, which is expected to increase tailings capacity to 2045. The mine life is projected to extend well into the 2030s. Hecla plans to nearly double its investment in exploration and pre-development in 2026, with a focus that includes Greens Creek.

5 (as of 2014, for permitting, environmental, and geological studies)

The San Juan Silver project is a significant development initiative located in the Creede Mining District, a historically prolific silver-producing region in Colorado. For the first time, the entire 21-square-mile district is under the control of a single owner. The project is centred on the historic Bulldog mine, which produced 25 million ounces of silver between 1969 and 1985. As of early 2023, Hecla was keeping the Bulldog mine's underground infrastructure dewatered while analysing the best approach to access the remaining mineralisation. The company's recent focus has been on strategic advancement to access this underground infrastructure for the purpose of resource confirmation and expansion. A desktop review was planned for 2025, with a comprehensive exploration program scheduled for 2026. The project is allocated 1% of Hecla's exploration budget.

Production overview - 2025: silver 1.14336466 t, gold 0.0008086934 t, lead 49270 t, zinc 40310 t; 2024: silver 1.151638191 t, gold 0.0008397945 t, lead 47430 t, zinc 38020 t.

In 2013, surface drilling intersected high-grade mineralisation 1,400 feet north of the Bulldog workings, confirming district-scale potential. The project has 30 miles of permissive strike length along known mineralised structures.

The Republic project is an exploration-stage asset held by Hecla Mining Company in Washington, United States. It is an emerging exploration opportunity for gold and silver, encompassing 3,583 acres. Hecla allocated 1% of its 2026 exploration budget to the project, with a desktop review planned for 2025 and a comprehensive exploration program for 2026.

The Connaught project is a polymetallic vein-style deposit located approximately 65 kilometres west of Dawson City, Yukon. Historically, it has been explored as a high-grade silver-lead-zinc-copper-gold prospect. Hecla Mining Company acquired the project in July 2023 as part of its acquisition of ATAC Resources, which also included the Rackla property. The acquisition was part of Hecla's strategy to acquire significant land packages in highly prospective and tier-one mining jurisdictions, further consolidating its position in the Yukon where it is also developing the Keno Hill mine. Hecla's website categorises the Connaught project with a focus on copper.

There is no current production at the Connaught project.

As of 2024, the mine employed approximately 512 people.

The Greens Creek mine is an underground operation located within the Admiralty Island National Monument, approximately 18 miles southwest of Juneau. It is one of the largest and lowest-cost primary silver mines in the world. The primary mining methods are cut and fill, and longhole stoping. The mine operates 24 hours a day, 365 days a year. Access to the site is by sea, followed by a 13-mile road. Major facilities include the underground mine, an ore concentrating mill, a dry stack tailings facility, a ship-loading facility, and camp facilities.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2024: silver 8500000 oz, gold 55275 oz.

The ore processing facility uses a flotation and gravity process to recover silver, gold, lead, and zinc. The mill processes approximately 2,300 tons of ore per day. A dry-stacked tailings process is utilised, and in 2024, 46% of the tailings were reused as backfill in the underground mine. Metallurgical recoveries in 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. In 2024, recoveries were 79% for silver, 72% for gold, 81% for lead, and 89% for zinc.

The mine uses fibre optics to tele-operate autonomous equipment from the surface.

In November 2024, the U.S. Forest Service issued a final decision approving an expansion of the mine's tailings disposal facility. This decision extends the mine's production life by 12 to 18 years, allowing operations to continue until at least 2043. The current tailings facility was anticipated to reach capacity by 2025. Copper became a payable metal for the mine in 2024, adding a new revenue stream.

The Republic mine, located in Washington, United States, is currently an exploration project held by Hecla Mining Company. The property is part of Hecla's portfolio of exploration and pre-development projects in North America. Hecla's current interest in the Republic district is as an "emerging opportunity" and it is noted as Washington's largest historic gold producer.

The Kinskuch property is an exploration and development stage project located in the Golden Triangle of British Columbia. It is contiguous to the east and south of what was formerly Dolly Varden Silver's Kitsault Valley Project and is now part of this larger consolidated project under Contango Silver & Gold Inc. The property is considered prospective for silver, gold, and copper mineralisation and includes the "Illiance trend," which is interpreted to be part of a district-scale sub-basin of the Eskay Rift period. The Illiance trend has seen limited modern exploration.

Dolly Varden Silver Corporation's acquisition of the Kinskuch property in May 2025 increased the size of the Kitsault Valley Project to approximately 77,000 hectares. For 2025, a minimum of 35,000 metres of diamond drilling was initially planned for the consolidated Kitsault Valley Project, with the program later expanded. As of October 2025, 56,131 metres of diamond drilling in 84 holes had been completed across the entire Kitsault Valley Project. Following the merger, the new owner, Contango Silver & Gold Inc., has announced a 40,000-metre surface drilling program for the Kitsault Valley Project, expected to commence in June 2026. This program aims to infill known mineral resources and test high-priority exploration targets. An updated Mineral Resource Estimate for the Kitsault Valley Project is expected by the end of the second quarter of 2026. A preliminary development plan for the Kitsault Valley assets is anticipated in the first half of 2027.