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zero (in 2021)

The Aurora mine is a gold and silver project operated by Hecla Mining Company, located in Mineral County, Nevada, United States. The project is situated in the historic Aurora mining district, near the California-Nevada border. Currently, the Aurora project is on care and maintenance, with a focus on exploration and permitting for future activities.

no production in 2023, production suspended in second half of 2021

600-ton-per-day mill, amalgamation, cyanidation

600-ton-per-day mill

significant exploration program, including the Polaris project, with federal approval for drilling activities to commence in 2026 at up to 250 sites

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 Platreef PGM-Nickel Mine is an underground operation in Limpopo Province, South Africa, which commenced production and produced its first concentrate on November 18, 2025. It is currently in a production ramp-up phase, with a Phase 1 concentrator milling capacity of 770,000 tonnes per annum. The mine is undergoing phased expansion, with Phase 2 targeted for completion in Q4 2027, aiming to significantly increase production of platinum, palladium, rhodium, gold, nickel, and copper.

The mine officially opened and produced its first batch of concentrate on 18 November 2025. The first sale of concentrate was completed in late fourth quarter 2025 to Northam Platinum.

The Phase 1 concentrator has a milling capacity of 770,000 tonnes per annum. Construction of the Phase 1 concentrator was completed in the third quarter of 2024, with first concentrate produced on 18 November 2025. The concentrator is initially processing lower-grade development ore and is expected to switch to higher-grade production ore in the second quarter of 2026.

The mine is accessed via shafts. Shaft 1 is complete. Shaft #3 is expected to be operational by April 2026, which will increase the mine's hoisting capacity five-fold to 5 million tonnes per annum. Shaft #2 is being widened to support future expansion. Primary mining methods are longhole stoping and drift-and-fill.

A phased expansion is underway. Phase 2 development is in progress and is targeted for completion in the fourth quarter of 2027; it is expected to increase production to approximately 450,000 ounces of platinum, palladium, rhodium and gold (3PE+Au), plus about 9,000 tonnes of nickel and 6,000 tonnes of copper annually. The total combined processing capacity of Phase 1 and 2 will be 4.1 million tonnes per annum. A future Phase 3 expansion is being assessed which would increase processing capacity to 10.7 million tonnes per annum and more than double production to over 1 million ounces of 3PE+Au, approximately 22,000 tonnes of nickel and 13,000 tonnes of copper annually.

950 workers (May 2018)

The Casa Berardi mine is an active underground and open pit gold and silver operation in Quebec, Canada. The previous owner, Hecla Mining, was in the process of transitioning the mine to a fully open-pit operation.

Production overview - 2025: gold 91160 oz; 2024: silver 24231 oz.

The Casa Berardi mill has a processing capacity of 3,730 tonnes per day. The process includes crushing, semi-autogenous grinding (SAG) milling, a gravity circuit, and a carbon-in-leach (CIL) circuit to produce doré bars.

The underground mine utilises 40-tonne trucks.

Orezone Gold Corporation completed the acquisition of the Casa Berardi mine from Hecla Mining Company on 25 March 2026. Orezone plans to optimise the current mine plan, increase underground production, and initiate a multi-year exploration drill program of 80,000 to 100,000 metres per year. An updated mine plan and economic study are expected to be published in the fourth quarter of 2026.

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 Dolly Varden Silver's Kitsault Valley Project and is now a part of this larger project. The property is considered prospective for silver, gold, and copper mineralisation. It 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 acquired the Kinskuch property in May 2025, which increased the Kitsault Valley Project's size to approximately 77,000 hectares. This acquisition is part of a broader consolidation strategy in the region. For 2025, a minimum of 35,000 metres of diamond drilling was planned for the consolidated Kitsault Valley Project. The exploration program for the entire project was later increased to 55,000 metres. As of October 2025, 56,131 metres of diamond drilling in 84 holes had been completed across the Kitsault Valley Project.

The Hollister mine is located in Elko County, Nevada, United States. It is an underground gold and silver mine that is currently on care and maintenance. The mine is owned and operated by Hecla Mining Company, which acquired it in July 2018. Production at the Hollister mine was suspended in the third quarter of 2019.

processed at the nearby Midas mill

Future development of the Hatter Graben or other expansions

76 employees (Nevada Operations unit, including Fire Creek) as of 31 December 2020

The Fire Creek mine, located in Lander County, Nevada, is an underground gold and silver mine currently on care and maintenance. Hecla Mining Company acquired the property in July 2018 and operated it until the second quarter of 2021, when it was placed on its current status following the processing of the remaining non-refractory ore stockpile. The mine is part of a strategic review of Hecla's Nevada portfolio that was underway in 2025.

Specific production figures for Fire Creek alone are not detailed in recent reports, as they are consolidated under Hecla's "Nevada Operations," which also includes the Hollister and Midas mines.

Historically, both non-refractory and refractory ores have been identified at Fire Creek. In 2020, Hecla Mining had an agreement with Nevada Gold Mines to process a 30,000-ton bulk sample of Fire Creek's refractory ore at one or more of their facilities to test recovery rates.

The Connaught property is situated in the Dawson Mining District in west-central Yukon, approximately 65 kilometres west of Dawson City. It is located immediately south of the Sixty Mile placer gold camp. The Connaught property consists of a 137.3 square kilometre land package. It is road-accessible and lies within the 150-kilometre-long Sixtymile-Pika fault system, which is known to host porphyry, skarn, and epithermal mineralization. The property hosts 26 identified silver-lead-zinc-gold-copper epithermal veins.

Production overview - 1966: gold 22.7 t, silver 22.7 t, lead 22.7 t.

Hecla Mining Company acquired the Connaught property as part of a larger land package from ATAC Resources, which also included the Rackla properties, for approximately US$18.8 million in Hecla common stock. The acquisition of ATAC Resources Ltd. by Hecla, which included the Connaught and Rackla properties, was completed on 7 July 2023.

The on-site mill has been used to process historical tailings, with the reprocessed tailings deposited in a fully lined tailings storage facility.

There is an existing 600-ton-per-day mill on site.

In late 2025, Hecla Mining Company received federal approval for its 2026 exploration program at the Polaris project, located in the historic Aurora mining district. The U.S. Forest Service issued a finding of no significant impact and a decision notice, allowing drilling and related exploration to proceed. The 2026 exploration program will test multiple epithermal vein systems, including near-surface targets and deeper systems. The program will consist of exploration activities on up to 150 acres, with a maximum of 250 drill sites. The project is supported by existing infrastructure and extensive private landholdings, which include 92 patented mining claims and 7 fee parcels, potentially reducing future permitting requirements. Drilling is planned for the Aurora project in 2026.

512 (2024)

The Greens Creek mine is one of the largest and lowest-cost primary silver mines in the world and the largest silver producer in the United States. It operates 24 hours a day, 365 days a year, within the Admiralty Island National Monument. A February 2026 news release detailing exploration results reported a high-grade intercept from the East Zone of 247.3 oz/t silver, 1.94 oz/t gold, 22.7% zinc, and 12.1% lead over 7.7 feet. In 2024, copper became a payable metal for the mine, creating a new revenue stream.

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 has an ore concentrating mill and processes approximately 2,388 tonnes of ore per day. Metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. The company uses AI-driven geological modelling and prospecting to identify new veins at the site. A tailings reprocessing initiative is also underway. In 2024, Greens Creek reused 46% of its tailings as backfill.

In January 2026, the U.S. Forest Service issued a Decision Notice authorising a five-year surface exploration project to search for new mineral deposits. An ongoing expansion of the mine's tailings facility is expected to increase storage capacity to 2045. A draft supplemental environmental impact statement for the tailings expansion was released for public comment in early 2026. Hecla plans to significantly increase its exploration and pre-development investment to $55 million in 2026, with a focus on Greens Creek and other core assets.

The Republic project, operated by Hecla Mining Company, is located in Ferry County, Washington, in the United States. Historically, it was an operating underground gold and silver mine known as the Republic Unit, which included the Golden Promise and Knob Hill mines. The mine ceased operations in early 1995 and is now an active exploration project for Hecla.

Production overview - 1995: gold 3098 oz, silver 15320 oz; 1993: gold 49601 oz, silver 276688 oz.

mill

mill

Hecla Mining Company continues to hold a land position of approximately five square miles in the Republic area and views it as an ongoing exploration opportunity. The company's current exploration efforts are focused on this land package.

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The Hollister Mine is an underground gold and silver mine located in Elko County, Nevada. It was acquired by Hecla Mining Company in July 2018 and placed on care and maintenance in Q3 2019. There are no on-site processing facilities, with ore historically transported to Hecla's Midas mill.

no on-site processing facilities; ore transported to Hecla's Midas mill for processing

30 company employees and 12 contract employees in 2020

The Fire Creek mine is an underground gold and silver mine located in Lander County, Nevada, in the United States. Hecla Mining Company holds a 100% interest in the project. The mine is currently on care and maintenance, a status it has held since the second quarter of 2021.

Production overview - 2021: gold 20727 oz, silver 46319 oz; 2020: gold 31800 oz, silver 37400 oz.

Ore from the Fire Creek mine was processed at the Midas mill using a counter-current decantation (CCD) circuit. The Midas facility includes a conventional gravity, leach, and Merrill-Crowe precipitation processing plant.

Midas mill, conventional gravity, leach, Merrill-Crowe precipitation processing plant, counter-current decantation (CCD) circuit

Hecla suspended development to access new production areas at its Nevada Operations, including Fire Creek, pending further studies and test work.

The Connaught project is considered to have potential for copper-molybdenum-gold porphyry style mineralisation, as well as high-grade silver-lead-zinc-copper-gold veins. The project is a substantial land package with identified gold, silver, and base metal mineralisation. As a result of previous exploration investment by ATAC, Hecla is not obligated to make significant expenditures to maintain control of the land package for the next decade.

Hecla Mining acquired the Connaught project through its acquisition of ATAC Resources Ltd. in a deal that was finalised in July 2023.

approximately 512 people (as of 2024)

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 16510.76 t, zinc 46538.37 t; 2024: silver 8500000 oz, gold 55275 oz, lead 16619.55 t, zinc 46528.34 t.

The processing plant is a conventional flotation concentrator with a capacity of 2,500 tons per day. The process involves grinding the ore in a semi-autogenous grinding (SAG) mill and ball mill circuit, followed by flotation to produce a silver concentrate, a zinc concentrate, and a precious metals concentrate. It also uses gravity spiral concentrators to produce a gold concentrate. Reagents used in the flotation process include copper sulphate, alcohol-based frothers, xanthate, lime, sodium cyanide, zinc sulphate, sulphuric acid, sodium isopropyl dithiophosphate, a 3418A promoter, an SD200 depressant, metabisulphite, and carbon dioxide. In 2024, 46% of the tailings were reused as backfill in the underground mine. Metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. The mill operated at an average of 2,388 tons per day in 2025.

The mine utilises modern mechanised trackless equipment for production and development. The fleet includes at least one LHD capable of semi-autonomous operation and another capable of tele-remote operation, allowing for production activities to continue during shift changes and post-blasting periods. The underground equipment is considered standard for the industry.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. This project aims to increase the mine's reserve base through surface exploration for silver, gold, lead, and zinc. Hecla Mining Company plans to nearly double its investment in exploration and pre-development in 2026 to $55 million, with a focus on replacing or exceeding annual reserve depletion. There is also a project to expand the tailings facility.

More than 2,000 people

The first batch of platinum-palladium-nickel-rhodium-gold-copper concentrate was produced on November 18, 2025. The first sale of concentrate was made to Northam Platinum in the fourth quarter of 2025. The Phase 1 concentrator is ramping up and is expected to reach about 80% of its nameplate capacity by mid-2026.

The Phase 1 concentrator has a milling capacity of 770,000 tonnes per annum (ktpa). The Phase 2 expansion includes a new 3.3-million-tonnes-per-annum (Mtpa) concentrator module, bringing total processing capacity to 4.1 Mtpa. A potential Phase 3 expansion would increase total processing capacity to 10.7 Mtpa.

The mine utilises multiple shafts. Shaft #1 is used for hoisting development rock. Shaft #3 is expected to be operational by April 2026, increasing the mine's hoisting capacity five-fold to 5 million tonnes per annum. Shaft #2 is planned for the Phase 3 expansion and is expected to be available for hoisting in 2029.

Development on the Phase 2 expansion is underway, with completion targeted for the fourth quarter of 2027. The Phase 2 expansion is expected to increase average annual production to approximately 450,000 ounces of platinum, palladium, rhodium, and gold (3PE+Au), plus over 30 million pounds of nickel and copper. A Preliminary Economic Assessment (PEA) has been completed for a Phase 3 expansion which could further increase annual production to over 1 million ounces of 3PE+Au, approximately 25,000 tonnes of nickel and 15,000 tonnes of copper.

The Rackla Gold Property consists of a massive land package with significant exploration potential. Hecla Mining Company is undertaking a strategic review and plans a comprehensive exploration program for the property. The property includes several projects, most notably the Rau project, which hosts the Tiger gold deposit, and the Nadaleen project, which includes the Osiris deposit.

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The Casa Berardi mine, previously operated by Hecla Mining Company, was acquired by Orezone Gold Corporation in a transaction that closed in March 2026. The mine is currently operational, combining both underground and open-pit methods, with a strategic plan to transition to a fully open-pit operation. Orezone has announced plans to conduct significant exploration and will provide an updated mine plan and production guidance in the second and fourth quarters of 2026, respectively.

Production overview - 2025: gold 91160 oz; 2024: gold 86648 oz.

The Casa Berardi processing plant has a capacity of 3,730 tonnes per day, with the potential to expand to 4,400 tonnes per day. The process includes crushing, semi-autogenous grinding (SAG) milling, and a carbon-in-leach (CIL) circuit for gold recovery.

Strategic plan to transition to a fully open-pit operation; multi-year exploration drilling program of 80,000 to 100,000 metres per year is planned; potential for an increase in underground production.

The San Juan Silver project is an exploration and pre-development stage underground mine located in Creede, Colorado, in the United States. It is 100% owned and operated by Hecla Mining Company. The project is situated in the historic Creede Mining District, a prolific silver-producing area, and includes the Bulldog Mine. Hecla is advancing the project to access underground infrastructure for resource confirmation and expansion.

Production overview - 2025: silver 38000000 oz; 2024: silver 37026000 oz, gold 27000 oz.

Hecla is strategically advancing the project to access underground infrastructure for resource confirmation and expansion.

The Republic Project, located in Ferry County, Washington, is an exploration-stage gold and silver project held by Hecla Mining Company. The project is situated in the historical Republic Mining District and was Washington's largest historical gold producer. Currently, the site is not in production and is considered an emerging opportunity by Hecla, which has allocated 1% of its exploration budget to the project. The company's focus at the Republic Project is on integrating historical datasets with modern 3D modelling and contemporary exploration tools to assess the significant prospective terrain. Hecla's land position covers 3,583 acres, encompassing major historical productive trends.

The Rackla project is located in the Mayo mining district of central Yukon, Canada. It is an exploration and pre-development stage project. The property hosts two main advanced-stage projects: the Rau project, which includes the Tiger gold deposit, and the Nadaleen project, which hosts the Osiris gold deposit.

Proposed processing for the Tiger Deposit involves conventional crushing, grinding, cyanidation by carbon-in-pulp (CIP), and gold recovery from loaded carbon to produce gold doré. Metallurgical test work on the Osiris Deposit has indicated that gold recoveries of over 80% are achievable through flotation, pre-treatment by either pressure oxidation or roasting, and cyanide leaching.

The Kinskuch property is located in the Golden Triangle of British Columbia and is now part of Dolly Varden Silver's expanded Kitsault Valley Project. The acquisition increased the Kitsault Valley Project's size to approximately 77,000 hectares, consolidating a district-scale, contiguous claim package. The property is considered underexplored but prospective for silver, gold, and copper mineralisation. It is situated on the same favourable Jurassic-age Hazelton-group volcanic rocks that host other significant deposits in the region. The Kinskuch property includes the past-producing Esperanza Mine, which was active around 1910. The property is covered by a five-year Exploration Permit on both Nisga'a and Gitanyow Traditional Lands. Following the acquisition, Dolly Varden's 2025 exploration program for the broader Kitsault Valley Project was expanded from a planned 35,000 metres to 55,000 metres, and was completed in October 2025 with a total of 56,131 metres drilled in 84 holes. This program aimed to expand resources at other deposits within the Kitsault Valley Project, such as Wolf and Homestake Silver, and test new exploration targets. In December 2025, Dolly Varden announced a merger-of-equals with Contango ORE, Inc.

The Hollister mine, an underground gold and silver operation in Elko County, Nevada, is wholly owned by Hecla Mining Company. It was placed on care and maintenance in Q3 2019 due to a re-evaluation of the mining plan. Ore was processed at the Midas mill. Exploration continues on the Hatter Graben deposit, which has inferred resources of 141,600 oz gold and 1,251,700 oz silver as of Dec 31, 2025.

Mining was conducted using cut and fill and longhole stoping methods. Ore was processed at the nearby Midas mill.

Exploration efforts are focused on the Hatter Graben deposit, which is considered to have expansion potential. As of 31 December 2025, the Hatter Graben is reported to have an inferred resource of 141,600 ounces of gold and 1,251,700 ounces of silver.