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512 (as of 2024); 494 (in 2022)

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 kt, zinc 51300 kt; 2024: silver 9741935 oz, gold 48216 oz, lead 17670.9918 t, zinc 47458.75092 t.

The mine has an ore concentrating mill. In 2024, 46% of tailings were reused as backfill.

The primary mining methods are cut and fill and longhole stoping. The mine produces approximately 2,300 tons of ore per day.

In January 2026, a five-year plan of operations for the Greens Creek Surface Exploration Project was approved by the U.S. Forest Service. This exploration is for mineral deposits including silver, gold, lead, and zinc, and is expected to increase the project's reserve base and extend the mine life. Hecla Mining Company announced in March 2026 that it had completed the sale of its Casa Berardi Mine and would use the proceeds to strengthen its balance sheet for investment in its silver assets, including Greens Creek.

The San Juan Silver project is situated in the historic Creede Mining District in Colorado. Hecla Mining Company holds a 100% interest in the project. The project is currently in an exploration and development phase, described by the company as a high-impact development project. A significant focus of the project is the Bulldog Mine area, which has a history of production, having yielded 25 million ounces of silver between 1969 and 1985. Hecla is strategically advancing toward accessing underground infrastructure to confirm and expand the existing resources.

Production overview - 2024: silver 37026000 oz, gold 27000 oz, lead 47430 t, zinc 38020 t.

The Republic project is an exploration-stage asset for Hecla Mining Company in Washington, located in a district known for being the state's largest historic gold producer. Hecla's land package covers 3,583 acres, including all major past-producing trends. The company considers Republic an "emerging opportunity" and is focused on exploration activities, integrating historical data with 3D modelling and modern exploration techniques.

The Kinskuch property is located in the Golden Triangle of British Columbia and is now part of Dolly Varden's larger Kitsault Valley Project. It is considered underexplored with limited modern exploration.

The Hollister mine, operated by Hecla Mining Company, is an underground gold and silver operation currently on care and maintenance since Q3 2019. Located in Elko County, Nevada, Hecla is focusing exploration on its Nevada properties, including Hollister, with a potential restart development decision by 2029-2030.

Further development of the Hatter Graben, located approximately 2,500 feet east of the main underground development, or other expansions at Hollister are planned and will require state and federal approvals.

two employees

The Fire Creek deposit is a low-sulfidation, epithermal deposit with mineralisation occurring in steeply dipping epithermal veins within Tertiary basalt flows and intrusive rocks. The mine was acquired by Hecla Mining Company in July 2018 and placed on care and maintenance in the second quarter of 2021 after processing the remaining non-refractory ore stockpile. Mining has historically been conducted using underground methods including longhole stoping, cut and fill, drift and fill, and back stoping.

Production overview - 2023: gold 683 oz; 2021: gold 645 kg.

0 (2024)

Hecla Mining's Aurora mine in Nevada remains on care and maintenance. The site is operated by Hecla's subsidiary, Klondex Aurora Mine Inc. A significant development is the federal approval for the 2026 exploration program at the Polaris project, located within the Aurora mining district. On 20 November 2025, the U.S. Forest Service issued a Finding of No Significant Impact and a Decision Notice, which was announced by the company on 1 December 2025, allowing for drilling and related exploration activities to proceed. The Federal Permitting Improvement Steering Council announced the completion of the federal permitting for the Polaris Exploration Project on 31 March 2026. A company executive has previously indicated that Hecla is considering a potential restart of the Aurora asset in approximately five years, contingent on further exploration, investment, and permitting.

The site has an existing 600-ton-per-day mill that is available to process potential new discoveries.

The primary expansionary activity is the 2026 exploration program at the Polaris project. This program will test several near-surface epithermal vein systems, including Martinez, Juniata, and Ann, as well as deeper systems at Brawley Peak, Sawtooth Ridge, and Polaris. The project will involve exploration activities on up to 150 acres, with a maximum of 250 drill sites. Hecla has noted that its significant private land holdings in the area could streamline the permitting process for any future discoveries. The company's budget for exploration and pre-development in Nevada, which includes Aurora, was planned to almost double in 2026 compared to 2025.

512 people (as of 2024)

The mine is located within the Admiralty Island National Monument.

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

The mine uses a conventional flotation concentrator to produce a gravity gold concentrate, a silver concentrate, a zinc concentrate, and a precious metals concentrate. The ore is processed at an on-site mill. The mine produces approximately 2,300 tons of ore per day.

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

In November 2024, the U.S. Forest Service approved an expansion for more tailings storage, which could extend the mine's operational life for up to 18 years. In January 2025, the U.S. Forest Service also approved a five-year plan for a surface exploration project to identify new mineral targets not accessible from underground. In 2024, copper became a payable metal, adding a new revenue stream.

2,200

Phase 1 annual production expected to ramp up to approximately 100,000 ounces of platinum, palladium, rhodium, and gold (3PE+Au), plus 2,000 tonnes of nickel and 1,000 tonnes of copper.

Underground mining methods (long-hole stoping, drift-and-fill) and concentrator processing (Phase 1 concentrator with 770,000 tpa milling capacity).

Underground mining methods including long-hole stoping and drift-and-fill. Phase 1 concentrator with 770,000 tonnes per annum milling capacity. Shaft 1 (1 Mtpa hoisting capacity), Shaft 2 (6 Mtpa hoisting capacity), Shaft 3 (5 Mtpa total hoisting capacity).

Phase 2 expansion underway, targeted for Q4 2027, adding a 3.3 Mtpa concentrator (total 4.1 Mtpa processing capacity). Expected to increase annual production to 450,000 oz 3PE+Au, plus over 30 Mlbs nickel and copper. A $700 million project finance facility signed for Phase 2. Future Phase 3 expansion outlined in a Preliminary Economic Assessment, increasing processing capacity to 10.7 Mtpa and potentially doubling annualised production to over 1 Moz 3PE+Au.

The San Juan Silver project, located in the historic Creede Mining District of Colorado, is a key exploration and development asset for Hecla Mining Company. Currently in pre-production, the project focuses on exploration and resource evaluation, centered around the historic Bulldog Mine. Hecla holds a 100% interest and aims to advance towards accessing underground infrastructure to expand mineral resources.

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

The Republic mine is an exploration project in Washington State, United States, held by Hecla Mining Company. It is situated in the historically productive Republic Mining District, covering 3,583 acres. Hecla is integrating historical datasets with 3D modelling and modern exploration techniques, having identified multiple high-grade gold intercepts. 1% of the 2025 exploration budget is allocated to this project.

Metallurgical recovery for gold and silver was reported at 85% as of 31 December 2025. Earlier reports from 2022 and 2024 noted metallurgical recovery for both gold and silver at 90%.

Hecla Mining Company has designated its Nevada portfolio, which includes Monte Cristo, as a high-impact development project that accounts for 22% of the exploration budget. The project is situated on a six-mile mineralised trend with multiple targets that have shown greater than 0.1 oz/ton gold and greater than 5 oz/ton silver in drilling. Rock chip sampling in untested areas has yielded up to 0.46 oz/ton gold and 2.5 oz/ton silver. The company's strategy involves the systematic advancement of targets to a drill-ready status through detailed mapping, geochemistry, and the generation of cross-sections. The inferred resource at Monte Cristo is reported based on a minimum mining width of 5.0 feet and a 0.094 oz/ton gold cut-off grade as of 31 December 2025.

8 employees

The Hollister mine is an underground gold and silver mine located in Elko County, Nevada, wholly owned by Hecla Mining Company through its subsidiary, Klondex Hollister Mine Inc. Production at the mine was suspended in the third quarter of 2019, and it is currently on care and maintenance status.

There are currently no processing facilities permitted or planned for the site.

2 (as of 2024)

The Fire Creek mine, operated by Hecla Mining Company, was placed on care and maintenance in the second quarter of 2021 after the processing of the remaining non-refractory ore stockpile was completed. The mine is part of Hecla's Nevada Operations. Hecla Mining is conducting a strategic review of its Nevada portfolio in 2025 to re-rank priorities. A restart of mining operations is contingent upon sufficient exploration success and development. The company notes that 90% of the Fire Creek district remains unexplored with modern techniques, suggesting significant untested potential.

Production overview - 2023: gold 683 oz.

The Aurora mine is located in Mineral County, Nevada, in the United States. It is currently on care and maintenance. The mine is owned by Hecla Mining Company through its subsidiary, Klondex Aurora Mine Inc. The primary commodities at the site are gold and silver. The historic Aurora district produced 1.9 million ounces of gold and 20 million ounces of silver. Historic underground production averaged 2.24 ounces per ton of gold. The site has existing infrastructure, including a 600-ton-per-day mill. Hecla's land position includes 92 patented mining claims and seven fee parcels, which is expected to provide an expedited development pathway for any future discoveries.

The historic Aurora district produced 1.9 million ounces of gold and 20 million ounces of silver.

600-ton-per-day mill

On 20 November 2025, the US Forest Service issued a Finding of No Significant Impact and a Decision Notice for the Polaris Exploration Project at Aurora. This approval allows Hecla to commence exploration activities, including drilling, in 2026. The exploration program will test multiple epithermal vein systems.

approximately 512 people (2024)

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 51288 t, copper 1874 t.

The mine's ore concentrating mill processes approximately 2,300 tons of ore per day using a SAG/ball mill grinding circuit, followed by flotation and gravity processes. Three concentrates are produced: a silver concentrate, a zinc concentrate, and a zinc-rich precious metals concentrate. In 2024, 46% of the mill tailings were reused as backfill in the underground mine.

In November 2024, the U.S. Forest Service approved an extension of the mine's production for 12 to 18 years. This includes a phased expansion of the tailings disposal facility. In January 2025, a five-year plan for a surface exploration project was also approved. Copper became a payable metal for the mine in 2024, creating a new revenue stream. Capital investment in 2026 is expected to be higher, partly for the expansion of the tailings facility, which is designed to increase capacity to 2045.

exceeded 650 people

The mine's status has changed from 'under development' to 'Active'. The Phase 1 concentrator began operations and produced its first batch of platinum-palladium-nickel-rhodium-gold-copper concentrate on November 18, 2025. The first sale of concentrate was made to Northam Platinum in the fourth quarter of 2025. The concentrator is currently processing lower-grade development ore and is expected to ramp up to 80% of its nameplate capacity by mid-2026, following the commissioning of Shaft #3.

770,000 tonnes per annum milling capacity

The Phase 1 concentrator has a milling capacity of 770,000 tonnes per annum. The mine will produce a polymetallic concentrate containing platinum, palladium, rhodium, gold, nickel, and copper.

Underground mining is conducted via shaft access. Shaft #3 is scheduled to be ready for hoisting in April 2026, which will increase the mine's total hoisting capacity to approximately 5 million tonnes per annum.

The mine is being developed through a phased approach. Phase 1: Currently in operation with a 770 ktpa concentrator. Phase 2: Development is underway to expand processing capacity to 4.1 million tonnes per annum, targeting completion in Q4 2027. This phase is expected to increase annual production to approximately 450,000 ounces of platinum, palladium, rhodium and gold (3PE+Au), plus over 30 million pounds of nickel and copper. Phase 3: A preliminary economic assessment covers a potential further expansion to 10.7 Mtpa of processing capacity, which would double the annualised 3PE+Au production to over 1 million ounces.

The Republic mine, located in Ferry County, Washington, is a former gold and silver producer which is now categorised by Hecla Mining Company as an exploration project. Hecla's exploration strategy notes that the Republic area was Washington's largest historic gold producer and represents an emerging opportunity. The company holds 3,583 acres covering major productive trends and sees potential for discoveries concealed by post-mineral cover. For 2025, 1% of Hecla's exploration budget is allocated to the Republic project. The Washington State Department of Ecology lists the site, referred to as the Hecla Knob Hill Mine, as "Awaiting Cleanup". Hecla is continuing long-term mine water management and treatment activities at the site. Production at the mine, which was acquired by Hecla in 1981, ceased in 1995.

The Monte Cristo project is part of Hecla's Nevada portfolio, which was undergoing a reassessment in 2025 for priority reranking. The company plans to nearly double its investment in exploration and pre-development in 2026, with a focus on its Nevada properties. Rock chip sampling has shown up to 0.46 oz/ton gold and 2.5 oz/ton silver in untested areas. The project is situated on a six-mile mineralised trend with multiple targets showing greater than 0.1 oz/ton gold and greater than 5 oz/ton silver in drilling. As of February 2026, the inferred resource at Monte Cristo was reported at a minimum mining width of 5.0 feet and a 0.094 oz/ton gold cut-off grade.

Metallurgical recovery is estimated at 85% for gold and 85% for silver as of the latest reports in 2026. Earlier reports from 2025 and prior years cited a metallurgical recovery of 90% for both gold and silver.

The Kinskuch property, previously operated by Hecla Mining Company, was acquired by Dolly Varden Silver Corporation in May 2025. It is now part of Dolly Varden's Kitsault Valley Project and is in the exploration stage with prospectivity for silver, gold, and copper mineralization. Hecla Mining Company retains a 2% net smelter return royalty.

Dolly Varden Silver plans geological mapping and reconnaissance to generate drill targets as part of its broader 2025 exploration program for the Kitsault Valley Project.

The Hollister mine, part of Hecla Mining Company's Nevada Operations, is currently on care and maintenance. Production at the underground gold and silver mine was suspended in the third quarter of 2019.

The ore from Hollister was processed at the nearby Midas mill.

The mine is a trackless operation accessed by a decline. Mining methods include cut and fill and longhole stoping.