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The Hollister mine in Nevada, United States, is an underground gold and silver project owned and operated by Hecla Mining Company. The mine has been on care and maintenance since the third quarter of 2019.

Production overview - 2025: gold 361000 oz, silver 2372000 oz.

The Aurora mine, located in Mineral County, Nevada, is owned and operated by Hecla Mining Company. The mine is currently on care and maintenance. Overall production at Hecla's Nevada Operations, which includes Aurora, was suspended in the second half of 2021.

Production overview - 2018: gold 828 kg; 1996: gold 13359 oz, silver 30352 oz.

The processing facility at the site includes a 600-ton-per-day mill. Klondex had commenced processing historical tailings from the Hollister mine at the Aurora mill.

Polaris Exploration Project in the Aurora mining district. This approval allows for exploration activities, including drilling, to commence in 2026.

Approximately 250 employees and contractors

Keno Hill is an operating underground silver, lead, and zinc mine in Yukon Territory, Canada, owned 100% by Hecla Mining Company. It began commissioning in Q2 2023 and is undergoing development and exploration.

Production overview - 2025: silver 3018490 oz, lead 3633 t, zinc 2247 t; 2024: silver 2773873 oz, lead 2930 t, zinc 1507 t.

The mine has a fully permitted 400 tonne per day mill that produces silver, lead, and zinc concentrates. The processing facility includes a crushing plant, a mill building which was expanded in 2021 to house a secondary grinder, and utilises flotation for recovery. Plans for phased throughput optimisation to 600 tonnes per day.

Mobile equipment for mill operation: 1 excavator, 3 loaders, 2 skid steers.

Acquired by Hecla Mining Company on 7 September 2022. Began commissioning in Q2 2023. Capital expenditure focused on mine development and infrastructure projects including a cemented tailings plant, tailings storage facility, and water treatment plant. Exploration ongoing to expand high-grade mineralisation.

approximately 1,775 (company-wide in 2023)

The Lucky Friday mine had a record-breaking year for silver production in 2025, with 5.3 million ounces produced, attributed to 5% higher throughput and a 2% higher milled grade. In 2024, the mine achieved its third-best year for silver production and its best year for zinc production, also setting a record for the highest tonnes of ore mined and milled in its 80-year history. Production in 2023 was impacted by a fire, leading to a temporary suspension of operations from August, with a restart on 9 January 2024. The increase in silver production in 2022 was due to the continued implementation of the "Underhand Closed Bench" mining method.

Production overview - 2025: silver 5.3 Moz, lead 34.28 kt, zinc 14.92 kt; 2024: silver 4.9 Moz, zinc 13513 t.

The mine has a concentrator facility with a current operating rate of 1,000 short tons per day, producing silver-lead and zinc concentrates. These concentrates are transported by truck to the Teck Metals Ltd. smelter in Trail, British Columbia, Canada.

The mine utilises an underhand closed bench (UCB) mining method. The mine's primary access is the Silver Shaft, which is 18 feet in diameter and sunk to a depth of 6,200 feet. A key growth project, the #4 Shaft, is an internal shaft that reaches 9,600 feet below the surface.

A new surface cooling project is under construction and is expected to be completed by mid-2026. In 2023, Hecla engineers were developing a system to recycle water from tailings ponds for use within the mine.

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 Kwinana Lithium Hydroxide Refinery, 49% owned by IGO Limited through a joint venture, has faced significant operational challenges, operating below its nameplate capacity of 24,000 tonnes per year. The Western Australian Department of Water and Environmental Regulation renewed its operating licence until 2 March 2046 but classified it as a "high" health risk due to dust and odour complaints. In January 2026, a contract was awarded for structural, mechanical, and piping works to integrate new mechanical equipment.

Production overview - 2025: lithium 2775 t.

The facility is a fully automated processing plant that converts chemical-grade lithium spodumene concentrate from the Greenbushes mine into battery-grade lithium hydroxide.

In January 2025, IGO and Tianqi Lithium agreed to cease all work on the planned second production train (Lithium Hydroxide Plant 2). IGO has fully impaired its 49% stake in the refinery due to ongoing operational issues and challenging market conditions.

Production overview - 2025: lithium 1.35 Mt.

The Greenbushes operation has four processing plants: one for technical grade lithium concentrates and three for chemical grade lithium concentrates, which includes a tailings retreatment plant. Chemical Grade Plant 3 (CGP3) processed its first ore in December 2025. Processing methods include gravity, heavy media separation, flotation, and magnetic processes to produce a range of lithium concentrates.

A capacity expansion project is underway to expand the mine to the east and south of the current site, including an additional waste rock landform, expansion of an existing waste rock landform, and expanded water storage capacity. Chemical Grade Plant 3 (CGP3), with a capacity of approximately 500,000 tonnes per year of spodumene concentrate, was commissioned in late 2025, increasing the total site capacity to around 2.1 million tonnes per annum. There is also a proposal for a potential Chemical Grade Plant 4 (CGP4).

The transition to care and maintenance in 2024 resulted in redundancies.

The project was transitioned into care and maintenance in June 2024 following a review that indicated a reduction in expected mine life and delays in reaching full capacity. All previously reported JORC Code reportable Mineral Resources and Ore Reserves have been declassified as of late 2025. IGO is conducting studies to determine future viability and exploring options to rationalise assets, while protecting the option of restarting if market conditions improve. An impairment charge of $172 million was recorded in FY24.

Production overview - 2024: nickel 1734 t.

The processing plant is a sulphide concentrator that was upgraded to a capacity of 1.1 million tonnes per annum. This upgrade included a new circuit with primary, secondary, and tertiary crushing and screening, a new primary mill, refurbished secondary and regrind mills, new and refurbished flotation circuits, a new tailings thickener, a new concentrate filter, and upgraded services.

The project was transitioned into care and maintenance in June 2024. A review completed in early 2024 indicated a reduction in the expected life of the mine and delays in reaching full capacity. As of late 2025, all previously reported JORC Code reportable Mineral Resources and Ore Reserves for the project have been declassified. IGO is conducting studies to determine the future viability of the project and is also exploring options to rationalise the assets.

over 160 employees

The Nova Operation is the main producing asset within the Fraser Range Project, consisting of two underground ore bodies, Nova and Bollinger. It commenced commercial production in July 2017.

Production overview - 2025: nickel 16371 t, copper 7324 t, cobalt 581 t; 2024: nickel 20806 t, copper 9922 t, cobalt 735 t.

1.5 million tonnes per annum plant that uses conventional crushing, grinding, flotation, and filtration to produce nickel and copper concentrates.

60-tonne trucks, SAG mill, ball mill

Project Rackla is an advanced-stage exploration project in the Mayo district of Yukon, Canada, owned and operated by Hecla Mining Company. It hosts two notable deposits: Osiris (Carlin-type) and Tiger (carbonate replacement).

A 2020 Preliminary Economic Assessment for the Tiger deposit reported a Measured and Indicated Mineral Resource of 464,000 ounces of gold. A historical resource estimate for the Osiris deposit indicated a Measured and Indicated Resource of 700,000 ounces of gold.

The proposed processing method in this assessment included conventional crushing, grinding, cyanidation by carbon-in-pulp (CIP), and gold recovery from loaded carbon to produce gold doré.

Hecla has indicated plans for a desktop review of the project in 2025, to be followed by a comprehensive exploration program in 2026.

Production overview - 2024: gold 25.51 t; 2023: gold 90363 oz.

The Casa Berardi mill has a processing capacity of 3,730 tonnes per day, with a potential future maximum output of 4,400 tonnes per day. The process involves a primary jaw crusher and a semi-autogenous grinding (SAG) mill that operates in a closed circuit with a screen.

The new owner, Orezone Gold Corporation, plans to optimise current operations and is conducting trade-off studies to evaluate an increase in underground production. A multi-year exploration drilling program of 80,000 to 100,000 metres per year is also planned.

In July 2015, at the commencement of the closure process, seven people were reported to be working at the site. A 2017 report mentioned that a half-dozen Hecla employees were overseeing the reclamation work.

The Troy Mine, an underground silver and copper mine located in Montana, is currently closed and undergoing reclamation. Hecla Mining Company acquired the mine in 2015 and initiated its permanent closure.

The Silver Valley / Star project is an early-stage exploration asset located in Wallace, Idaho, operated by Hecla Mining Company. The project is part of a renewed and expanded exploration initiative across Hecla's extensive land holdings in what is considered one of the world's most prolific silver districts. The exploration targets range from extensions of existing ore deposits to previously untested geochemical anomalies.

As of a document with an effective date of 31 December 2025, the stated metallurgical recovery is 93% for silver, 93% for lead, and 87% for zinc. Indicated and Inferred resources at the Star property are reported using a minimum mining width of 4.3 feet and a Net Smelter Return (NSR) cut-off value of $280/ton.

The San Juan Silver project is an exploration and development-stage underground mining project located in the historically significant Creede Mining District of Colorado. Hecla Mining Company holds a 100% interest in the project, which includes the past-producing Bulldog mine. The Bulldog mine historically produced 25 million ounces of silver between 1969 and 1985. The project is focused on defining and expanding upon the known mineralisation in the area.

Production overview - 2025: silver 36760000 oz, lead 44700.1995 t, zinc 36573.9735 t; 2024: silver 37026000 oz, lead 43027.6755 t, zinc 34500.0055 t.

The Rock Creek project, located in Sanders County, Montana, was acquired by Hecla Mining Company in 2015. Its development has been stalled by legal challenges, including a 2021 court ruling that invalidated federal approval, meaning it currently lacks authorization to proceed.

Production overview - 2024: silver 148291000 oz, copper 656060 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 Monte Cristo project is part of Hecla Mining Company's Nevada portfolio. It is described as a six-mile mineralised trend with multiple targets. Drilling has shown results of greater than 0.1 oz/ton gold and greater than 5 oz/ton silver. Rock chip sampling in untested areas has yielded results up to 0.46 oz/ton gold and 2.5 oz/ton silver. The Nevada portfolio is considered a high-impact development project for Hecla, with a 2026 budget of $55 million for exploration and pre-development across its Nevada, Greens Creek, Keno Hill and Lucky Friday assets.

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The Libby Exploration Project, formerly known as the Montanore Mine, is located in Lincoln County, Montana, approximately 20 aerial miles south of Libby. It is a 100%-owned underground silver and copper exploration project operated by Hecla Mining Company. In October 2025, the US Forest Service issued a final decision notice and finding of no significant impact, allowing the exploration phase to move forward. The project is currently in the exploration and evaluation stage, with activities to include dewatering an existing adit, adit rehabilitation, and underground exploration to collect geological, hydrological, and environmental data. This data will inform the project's feasibility and the potential development of a modern mine plan. The project's permitting and environmental review process is ongoing, with an estimated completion date of 10 June 2026.

23 company employees and 6 contract employees

Production overview - 2019: gold 3264 oz, silver 53025 oz.

No processing components are permitted or planned for construction on site.

The Hollister property includes the Hatter Graben vein system, which is considered a resource with expansion potential. As of December 2025, state and federal approvals will be required for waste rock and underground water management for the development of the Hatter Graben or other mine expansions.

The Fire Creek mine in Nevada, operated by Hecla Mining Company, continues to be on care and maintenance, with its future subject to an ongoing strategic review of the company's Nevada assets. As of early 2026, no decision to restart operations has been announced. The mine, an underground operation, was placed on care and maintenance in the second quarter of 2021 after the processing of its remaining non-refractory ore stockpile was completed. Hecla has indicated that a restart of mining operations would be contingent upon sufficient exploration success and development.

The Aurora mine, part of Hecla's Nevada Operations, is currently on care and maintenance, with production suspended in the second half of 2021. In 2024, Hecla secured abandoned mine lands at the site. A 2026 exploration program at the Polaris project in the Aurora mining district has received federal approval for drilling.

Overall production at Hecla's Nevada Operations, including Aurora, was suspended in the second half of 2021. The Aurora district has a historical production of 1.9 million ounces of gold and 20 million ounces of silver.

The site has an existing mill, with reported capacities of 600 tons per day and 350 tons per day. It also has a permitted tailings storage facility.

A 2026 exploration program at the Polaris project in the Aurora mining district has received federal approval for drilling and related exploration activities. The program will test multiple epithermal vein systems, including near-surface targets like Martinez, Juniata, and Ann, as well as deeper systems at Brawley Peak, Sawtooth Ridge, and Polaris.