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Hecla Mining Company holds a 100% interest in the San Juan Silver project, located in the historic Creede Mining District in Colorado. The project is currently in the exploration and development stage and is considered a high-impact development project by the company. It marks the first time the entire Creede district, which has a history of producing over 84 million ounces of silver, has been consolidated under a single owner. The project's land holdings consist of 129 patented lode and millsite claims, fee lands, and 704 unpatented lode claims, covering a total of 13,645 acres. The primary focus of the project is the historic Bulldog Mine area, which operated from 1969 to 1985 and produced 25 million ounces of silver. Hecla is working towards accessing the underground infrastructure to confirm and expand the existing resources.

approximately 512 people

Production overview - 2025: silver 8724996 oz, gold 59349 oz, lead 18213 t, zinc 51300 kt; 2024: silver 8480877 oz, gold 55275 oz, lead 18320 t, zinc 51288 t.

The mine operates an ore concentrating mill. The processing method involves a conventional flotation concentrator that produces a gravity gold concentrate, a silver concentrate, a zinc concentrate, and a precious metals concentrate. In 2024, 46% of the tailings were reused as backfill in the underground mine.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This project will explore for mineral deposits including silver, gold, lead, and zinc on Forest Service lands on Admiralty Island. Hecla Mining is also investigating the economic potential of recovering and reprocessing critical minerals from the mine's tailings, which contain silver, gold, zinc, lead, copper, and other minerals. There is also an early-stage project for the expansion of the dry-stack tailings facility.

The Republic project is an exploration-stage asset for Hecla Mining Company in a historically significant gold-producing district in Washington state. Exploration efforts focus on potential underground and bulk-tonnage discoveries, leveraging historical data and modern techniques. Recent activities confirmed high-grade gold intercepts. The project covers 3,583 acres, encompassing major past-producing trends. The district was historically Washington's largest gold producer.

Approximately 512 people as of 2024.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18.2 kt, zinc 51.3 kt; 2024: silver 8480000 oz, gold 55275 oz, lead 18320 t, zinc 51288 t.

The Greens Creek mine is an underground operation that processes approximately 2,300 tons of ore per day. The primary mining methods are cut-and-fill and longhole stoping. The ore concentrating mill uses a flotation process to recover silver, gold, lead, and zinc. Metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. The company is evaluating a pyrite concentrate circuit to potentially boost silver and gold recoveries. A tailings reprocessing project is also being assessed to recover minerals from the 10.4 million tons of tailings in the dry-stack facility.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. The project aims to identify new mineral targets not accessible from underground to extend the mine's life. This follows the approval for the Greens Creek North Extension Project, which extends the existing dry-stack tailings disposal facility. The company is also evaluating a pyrite concentrate circuit and a tailings reprocessing project. The tailings facility is estimated to contain 50 million ounces of silver and nearly 600,000 ounces of gold.

The Kinskuch property is now part of Dolly Varden Silver's larger Kitsault Valley Project, which is located in the Golden Triangle of British Columbia. The acquisition has significantly increased Dolly Varden's land holdings in the area, consolidating a district-scale claim package that also includes the Dolly Varden and Homestake Ridge projects. Dolly Varden Silver is an exploration company and intends to conduct further exploration on the Kinskuch property. The property is considered prospective for precious metals and is on the same structural and stratigraphic belts as other high-grade deposits in the region.

The Republic project in Washington is an ongoing exploration project for Hecla Mining Company. It is classified as an "emerging opportunity" within the company's portfolio. The project is situated in Washington's most significant historical gold-producing district. Hecla's land package in the district spans 3,583 acres and covers all major productive historical trends, including Knob Hill, Surprise, Lone Pine-Last Chance, Tom Thumb, and Golden Promise. The company is utilising modern exploration techniques, including the integration of historical datasets with 3D modelling, to assess the area's potential. Recent exploration has yielded multiple high-grade gold intercepts, which confirm the potential for new discoveries. The last recorded production by Hecla in this district was from the Golden Promise mine, which ceased operations in 1995. The Republic project constitutes 1% of Hecla's exploration budget. As of the latest corporate presentations and reports, no new specific data regarding updated coordinates, workforce size, equipment, processing details, production figures, mine life, or a timeline for potential development has been released. The project remains in the exploration phase with a focus on systematic, data-driven discovery.

The San Juan Silver project is an exploration and development asset located in the historically significant Creede Mining District of Colorado. Hecla Mining Company holds a consolidated land package covering approximately 21 square miles, marking the first time the entire district has been under single ownership. The project is focused on the Bulldog Mine area, which has a history of silver production. Current activities are focused on strategic advancement to access underground infrastructure for the confirmation and expansion of the existing resource.

Production overview - 2024: silver 37026000 oz, gold 27000 oz, lead 47430 t, zinc 38020 t; 2023: silver 38203000 oz, gold 34000 oz, lead 49400 t, zinc 39850 t.

512 (as of 2024)

The Greens Creek mine is located on Admiralty Island, approximately 18 miles southwest of Juneau, Alaska. It is one of the largest and lowest-cost primary silver mines in the world. The mine operates 24 hours a day, 365 days a year. The property includes the underground mine, an ore concentrating mill, a dry stack tailings storage facility, a wastewater treatment plant, camp facilities, a ferry dock and a ship-loading facility.

Production overview - 2026: silver 2200000 oz, gold 13000 oz; 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t.

The primary mining methods are cut-and-fill and longhole stoping. In 2025, the mill processed an average of 2,388 tons of ore per day. The metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. The metallurgical recoveries for 2024 were 79% for silver, 72% for gold, 81% for lead, and 89% for zinc.

In November 2024, the U.S. Forest Service announced a final decision to extend production at the Greens Creek Mine for 12 to 18 years. This decision allows for additional capacity for the disposal of mining waste material. In January 2026, the U.S. Forest Service also approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This surface exploration for silver, gold, lead, and zinc is anticipated to increase the mine's reserve base. The project was added to the FAST-41 Transparency Dashboard in May 2025 and completed its federal permitting process in January 2026. Hecla plans to nearly double its company-wide exploration and pre-development investment to $55 million in 2026, with a focus that includes Greens Creek.

Approximately 580 people in 2018.

The Casa Berardi mine is a gold and silver operation located in the Abitibi region of northwestern Quebec, Canada, approximately 95 kilometres north of La Sarre. It is a combined open-pit and underground mining operation, which is transitioning to a fully open-pit operation.

Production overview - 2025: gold 91160 oz; 2023: gold 90363 oz, silver 22415 oz.

Primary jaw crusher, a semi-autogenous grinding (SAG) mill, and a ball mill. Gold is recovered through a carbon-in-leach (CIL) circuit, which includes gravity concentration to produce doré bars.

Fleet includes hydraulic excavators, front-end loaders, rigid-frame trucks, articulated trucks. Processing plant includes primary jaw crusher, SAG mill, ball mill.

Processing plant has a capacity of 3,730 tonnes per day (tpd), with the potential to expand to 4,400 tpd.

Kinskuch is part of the larger Kitsault Valley Project, which is a significant exploration and development focus for Contango Silver & Gold Inc. The company is actively exploring the district-scale potential of the Kitsault Valley, which includes the Kinskuch property. An upcoming mineral resource estimate for the Kitsault Valley Project is expected to be completed by the end of the second quarter of 2026, which will incorporate results from approximately 200,000 metres of drilling since the last estimate. This will be the first mineral resource estimate to include the Kinskuch property under the new ownership.

Kinskuch is part of the larger Kitsault Valley Project, which is a significant exploration and development focus for Contango Silver & Gold Inc. The company is actively exploring the district-scale potential of the Kitsault Valley, which includes the Kinskuch property. An upcoming mineral resource estimate for the Kitsault Valley Project is expected to be completed by the end of the second quarter of 2026, which will incorporate results from approximately 200,000 metres of drilling since the last estimate. This will be the first mineral resource estimate to include the Kinskuch property under the new ownership.

The Republic Project is an exploration-stage opportunity for Hecla Mining Company in the historical Republic Mining District of Washington state. Hecla's strategy includes investing in exploration and pre-development projects in under-explored areas with a history of significant production. The exploration project covers 3,583 acres, encompassing major historical productive trends, with potential concealed by post-mineral cover.

The San Juan Silver project is a high-impact exploration and pre-development initiative located in the historic Creede Mining District of Colorado. Hecla Mining Company holds exclusive ownership of the entire 21-square-mile district, which has a significant history of silver production. The project's primary focus is on the historic Bulldog mine, with strategic efforts directed at accessing underground infrastructure to confirm and expand existing mineral resources. In 2025, the San Juan Silver project was allocated 1% of Hecla's exploration budget. Company-wide, Hecla invested $25.2 million in exploration in 2025 and has guided a substantial increase to $55 million for exploration and pre-development in 2026 across its portfolio.

Production overview - 2025: silver 1143.3646600000002 t, gold 0.8086909999999999 t, lead 49270 t, zinc 40310 t.

Metallurgical recovery estimates for the Bulldog deposit, based on the mean resource grade, average 89% for silver, 74% for lead, and 81% for zinc.

512 (as of 2024)

Miners produce approximately 2,300 tons of ore per day. In 2024, 46% of tailings were reused as backfill.

Production overview - 2023: silver 9700000 oz, gold 60900 oz, zinc 51500 t, lead 19600 t; 2022: silver 9740000 oz, gold 48216 oz, zinc 52312 t, lead 19480 t.

The mine operates an ore concentrating mill that uses flotation and gravity processes to recover silver, gold, lead, and zinc. The ore is ground to less than 50 micrometres.

In January 2026, the U.S. Forest Service approved a five-year plan for the Greens Creek Surface Exploration Project, which is expected to increase the project's reserve base and extend the mine life.

The Kinskuch property, previously operated by Hecla Mining Company, is now under the full ownership of Dolly Varden Silver Corporation and is considered an exploration-stage project. The acquisition was completed in May 2025 as part of Dolly Varden Silver's strategy to consolidate a district-scale, contiguous claim package in the Golden Triangle of British Columbia. Hecla Mining retains a 2% net smelter return royalty on the property. The property is located in a region known for its prospective geology for silver, gold, and copper mineralisation and is covered by a five-year Exploration Permit. The focus is on exploration.

As of 2024, Greens Creek employed approximately 512 people.

The Greens Creek mine is located on Admiralty Island in southeast Alaska and is one of the world's largest primary silver mines. It is an underground mine producing approximately 2,300 tons of ore per day using cut-and-fill and longhole stoping methods. The mine operates 24 hours a day, 365 days a year. The property is situated within the Admiralty Island National Monument and is accessed by boat. Hecla Mining Company holds 100% ownership of the mine through its wholly-owned subsidiaries: Hecla Greens Creek Mining Company (57.75%), Hecla Alaska LLC (29.73%), and Hecla Juneau Mining Company (12.52%).

Production overview - 2025: silver 8.7 Moz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2024: silver 8.5 Moz, gold 55275 oz, lead 18320 t, zinc 51500 t.

The mine has an on-site ore concentrating mill that uses flotation and gravity processes to recover silver, gold, lead, and zinc. In 2024, copper became a payable metal, creating a new revenue stream for the operation. The facility utilises a dry-stack tailings process, and in 2024, 46% of the tailings were reused as backfill in the underground mine.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This project, which is part of the FAST-41 initiative to streamline federal permitting, authorises testing of mineralised targets not accessible from underground to potentially increase the mine's reserve base and extend its operational life.

The San Juan Silver project is a high-impact development and exploration-stage project located in the Creede Mining District of Colorado. It is 100 per cent owned and operated by Hecla Mining Company. The project represents the first time the entire 21-square-mile historic Creede Mining District has been under single ownership. Company strategy is focused on the strategic advancement toward accessing underground infrastructure to confirm and expand the existing resource. The project includes the historic Bulldog Mine, which produced 25 million ounces of silver between 1969 and 1985. As of 31 December 2025, the project has an inferred resource of 36.76 million ounces of silver, 26,000 ounces of gold, 49,270 tons of lead, and 40,310 tons of zinc.

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

To access the existing Bulldog Mine, a decline project utilised a roadheader attachment on an excavator, hydraulic picks, and drill and blast methods. Ground support included friction bolts, lattice girders and shotcrete.

The Kinskuch property is a key component of Contango Silver & Gold's larger Kitsault Valley Project, which is in an exploration and resource definition phase. The acquisition of Kinskuch in May 2025 significantly increased the Kitsault Valley Project's land package to approximately 77,000 hectares. The property is considered underexplored, with historical work being limited. It added the "Illiance trend" to the company's exploration portfolio, a 30-kilometer-long trend of prospective Hazelton Group rocks. The property is covered by a recently renewed five-year exploration permit on both Nisga'a and Gitanyow Traditional Lands. Historical exploration by previous operators identified the Illiance River VMS (volcanogenic massive sulphide) target with gold, silver, zinc, and lead, and drilling by Homestake Resource Corp in 2011 yielded encouraging results.

Following the acquisition in 2025, Dolly Varden Silver (now part of Contango Silver & Gold) commenced a significant diamond drilling program across its Kitsault Valley Project. The initial 2025 program was a minimum of 35,000 metres and was later expanded to 55,000 metres. For the Kinskuch property specifically, an initial program of geological mapping and reconnaissance of the Illiance trend was planned for the 2025 exploration season to generate priority drill targets. The Illiance trend has seen little modern exploration, with only localized diamond drilling by Hecla on the three-kilometre-long Illy epithermal system. For 2026, Contango Silver & Gold has announced a transformative 40,000-metre surface drilling program for the entire Kitsault Valley Project, which will include testing high-priority exploration targets across the company's wider holdings. This program aims to support a preliminary development plan in the form of a Preliminary Economic Assessment/Initial Assessment (PEA/IA) for the Kitsault Valley assets. While the Kinskuch area is part of this broader exploration effort, specific drilling plans or a breakdown of the metre allocation for the Illiance trend have not been detailed in the available information.

865 jobs with a total of $70 million in wages

The Greens Creek mine is situated in southeast Alaska on Admiralty Island, approximately 18 miles southwest of Juneau. It lies within the Admiralty Island National Monument.

Production overview - 2024: silver 8.48 Moz, gold 55275 oz, zinc 51288 t; 2023: silver 9.7 Moz, gold 60896 oz.

The mine operates an ore concentrating mill. The processing method involves a conventional flotation process to produce a gravity gold concentrate, a silver concentrate, and a zinc concentrate. In 2024, 46% of the tailings were reused as backfill in the underground mine.

The primary mining methods are cut and fill and longhole stoping. The mine utilises autonomous equipment operated from the surface via a fibre optic network. Safescape Laddertube has been supplied to the mine.

In January 2025, the U.S. Forest Service approved a five-year plan for surface exploration at the Greens Creek project to identify new mineralised targets not accessible from underground operations. Hecla is also investigating the potential for economic recovery and reprocessing of critical minerals from the mine's tailings, which include silver, gold, zinc, lead, copper, and others. The company plans to nearly double its exploration and pre-development investment to $55 million in 2026, with a focus on areas including Greens Creek.

The Republic project, also known as the Knob Hill Mine, is located in the Republic Mining District in Ferry County, Washington. Hecla Mining Company's most recent annual reports and corporate presentations list Republic as an exploration project. The project is described as an emerging opportunity and was Washington's largest historic gold producer. The strategic land coverage spans 3,583 acres, encompassing all major historical productive trends. Hecla's exploration strategy involves integrating historical datasets with 3D modelling and modern exploration techniques.

Production overview - 1993: gold 49601 oz, silver 276688 oz.

crushing, flotation cells, and cyanide vat leaching for gold recovery

rubber-tired diesel equipment

The Kinskuch property is located in the Golden Triangle of British Columbia, a region known for its significant mineral deposits. It is contiguous to the east and south of Dolly Varden's existing Kitsault Valley Project, and its inclusion has increased the total project size to approximately 77,000 hectares. The property is situated on both Nisga'a and Gitanyow Traditional Lands and has a renewed five-year exploration permit.

The San Juan Silver project is an exploration and development asset wholly owned by Hecla Mining Company, located in the Creede Mining District of Colorado, United States. The project is classified as an underground mine. Official filings confirm the project holds 131 patented lode or millsite claims and 704 unpatented lode claims, totalling 13,645 acres. It operates under a Mining Plan of Operations with the US Forest Service (USFS) and a 112-d2 mining permit from the Colorado Division of Reclamation, Mining and Safety (CO DRMS). The project is focused on the Bulldog Mine area, 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 for resource confirmation and expansion.

Production overview - 2025: silver 36760000 oz, lead 49270 t, zinc 40310 t; 2024: silver 37026000 oz, lead 47430 t, zinc 38020 t.

Approximately 512 people as of 2024. The mine provides about 510 direct jobs and over 450 indirect jobs statewide.

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

The mine has an ore concentrating mill that processes approximately 2,300 tons of ore per day using flotation and gravity processes. The facility also includes a dry stacked tailings facility, a ship-loading facility, and a wastewater treatment plant. In 2024, 46% of tailings were reused as backfill.

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

In November 2024, the U.S. Forest Service approved a tailings disposal expansion which is expected to extend the mine life by 12 to 18 years. The expansion will be implemented in phases, with the first phase beginning immediately to provide additional tailings capacity for the first three years. In January 2025, a five-year plan for a surface exploration project was also approved.