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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 Rackla property is a large, 650+ square mile land package with multiple identified mineralisation styles. It hosts two main advanced-stage projects: Osiris Project (Carlin-type gold system) and Tiger Project (carbonate replacement-style gold deposit). The broader property also shows potential for high-grade zinc, lead, and silver mineralisation.

30-35

The Libby Exploration Project, operated by the United States-based Hecla Mining Company, is an underground silver and copper exploration project located in Lincoln County, Montana. The project is currently in the exploration and evaluation phase, which is expected to last for approximately 16 years, including post-reclamation monitoring. The U.S. Forest Service has issued a final Environmental Assessment and signed a Decision Notice, authorising the new Plan of Operations for the project to proceed with exploration and data collection. The project was formerly known as the Montanore Project.

Production overview - 2024: silver 5188.4627388750005 t, copper 680388.555 t.

dewatering and rehabilitation of an existing 7,000-foot tunnel (adit), which will be extended by an additional 4,200 feet. Further tunnels will also be constructed to allow for drilling to assess the mineral deposit.

The Rock Creek project is an underground silver and copper deposit located in Sanders County, Montana, United States. Hecla Mining Company has withdrawn the Plan of Operations and is not currently pursuing permits for the mine's construction, focusing instead on the Libby Exploration Project.

Production overview - 2025: silver 148291000 oz, copper 656060 t.

Hecla Mining Company's website lists Silver Valley/Star as an exploration project. A document from the Basin Environmental Improvement Project Commission, dated March 2026, indicates that cleanup, re-grading, capping of mine wastes, and reconstruction of Canyon Creek at the "Hecla Star Mine Complex" are expected to be completed in 2026. The mine is not in production.

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 development initiative located in the historic Creede Mining District of Colorado. Hecla Mining Company holds single ownership of the entire 21-square-mile district. The project's focus is on the historic Bulldog mine, with strategic efforts aimed at accessing underground infrastructure to confirm and expand the existing resource. The underground infrastructure is maintained and has been dewatered in anticipation of future activities. San Juan Silver is part of Hecla's exploration portfolio, receiving 1% of the company's exploration budget.

Production overview - 2025: silver 36760000 oz, lead 49270 t, zinc 40310 t, gold 26000 oz.

277 employees

The Keno Hill mine, acquired by Hecla Mining Company in 2022, is an operating underground silver, lead, and zinc mine in Yukon Territory, Canada. It features a 400 tonne per day mill, with plans to expand capacity to 600 tonnes per day. The company is focused on advancing development, ramping up production, and ongoing exploration.

Production overview - 2025: silver 3018490 oz, lead 3295.79 t, zinc 2038.45 t; 2024: silver 2773873 oz, lead 2658.05 t, zinc 1367.14 t.

The mine has a fully permitted 400 tonne per day mill that produces silver, lead, and zinc concentrates. The processing plant is designed for an average throughput of 430 tonnes per day, with the mined ore undergoing crushing and two stages of primary grinding. The lead-silver concentrate is expected to have an average grade of 15,890g/t silver and 54% lead, while the zinc-silver concentrate is expected to have a grade of 649g/t silver and 53% zinc. In 2025, upgraded underground water management infrastructure was commissioned to enhance water flow consistency and improve treatment efficiency.

Mobile equipment used for the mill operation includes an excavator, three loaders, and two skid steers.

Hecla Mining Company acquired the Keno Hill project through its purchase of Alexco Resource Corp., which was finalised on 7 September 2022. The company is focusing on advancing development and ramping up to commercial production. There is an ongoing exploration program, with a primary focus on testing a high-potential vein intersection northeast of the Deep Bermingham ore body. Hecla is also working on continued resource conversion and expansion in the Bermingham Bear Zone. The company is implementing a phased approach to throughput optimisation with a goal of expanding capacity to 600 tonnes per day. In 2025, construction of a permanent centralised water treatment plant was initiated.

Hecla is the second-largest private employer in Shoshone County, Idaho. In 2024, the mine's economic impact on neighbouring communities was $171 million, which included $54 million in wages.

Production in 2023 was impacted by a fall of ground caused by a fire in the #2 shaft, a secondary egress, which led to a temporary suspension of operations. In August 2024, Hecla Mining Company reached a settlement with the U.S. Environmental Protection Agency for Clean Water Act violations that occurred between January 2018 and February 2024. The settlement included a $174,300 penalty and a commitment to fund a $299,000 river habitat restoration project on the South Fork Coeur d'Alene River.

Production overview - 2025: silver 5260000 oz, lead 34280 t, zinc 14920 t; 2024: silver 152.40715 t, lead 31300 t, zinc 13500 t.

The site has a full surface facility with a mill that had an average throughput of 1,170 tons per day in 2025. It produces silver-lead and zinc concentrates that are shipped to a smelter in Trail, British Columbia, Canada. For 2025, metallurgical recovery rates were 94.5% for silver, 94.3% for lead, and 85.1% for zinc.

The mine uses mechanised jumbo drills and truck haulage. A key piece of infrastructure is the #4 Shaft, an internal shaft that reaches 9,600 feet below the surface, providing access to high-grade ore in the Gold Hunter/Lucky Friday Expansion Area. The mine has implemented the Underhand Closed Bench (UCB) mining method, for which Hecla holds a U.S. patent. In 2025, 88% of the tons mined were produced using the UCB method.

A significant capital investment of $68-$73 million is planned for 2026. This investment is focused on underground development, a new tailings facility, and a surface cooling project. The surface cooling project was 79% complete at the end of 2025 and is expected to be finished by mid-2026. This project is critical for enabling operations to advance deeper into hotter zones.

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.

312 (FY2023)

The Kwinana Lithium Hydroxide Refinery, a joint venture between Tianqi Lithium and IGO Limited, processes spodumene concentrate into battery-grade lithium hydroxide. Train 1 has faced significant operational challenges and ramp-up issues, achieving only 35% of its 24,000 tpa nameplate capacity by late 2025. IGO has fully impaired its investment due to these challenges and market conditions, with ongoing discussions about the plant's future.

Production overview - 2025: lithium 2126 t; 2024: lithium 3095 t.

The facility is a fully automated plant designed to convert spodumene concentrate into battery-grade lithium hydroxide monohydrate. The process involves calcining, acid roasting, leaching, purification, and crystallisation. The refinery is designed to produce by-products including aluminosilicate, gyplime, and sodium sulphate, with the aim of transitioning to a no-waste operation.

Construction of Train 1 commenced in December 2016. All work and activities on the second production train (Train 2) were ceased by agreement of the TLEA shareholders in January 2025.

The Cosmos Project, 100% owned by IGO Limited, is located 30km north of Leinster in Western Australia. It transitioned into care and maintenance in June 2024 following a project review that highlighted reduced expected mine life, production delays, increased costs, and deteriorating commodity prices. IGO intends to preserve the option to restart the project if market conditions improve and will assess exploration programs to increase mineral resources.

Processing capacity of 1.1 million tonnes per annum. Nearly 295,000 tonnes of Odysseus ore processed before operations ceased on 22 May 2024.

The newly and partly refurbished concentrator, with a capacity of 1.1 million tonnes per annum, includes new primary, secondary, and tertiary crushing circuits. It utilises a conventional sulphide processing route with grinding and flotation technology to produce concentrate. Operations ceased on 22 May 2024 after processing nearly 295,000 tonnes of Odysseus ore.

New primary, secondary, and tertiary crushing circuits, grinding and flotation technology. A study confirmed the feasibility of converting the planned diesel vehicle fleet to an all-electric battery-electric fleet.

Newly and partly refurbished concentrator upgraded to a capacity of 1.1 million tonnes per annum.

The Forrestania Operation is situated 400 kilometres east of Perth in Western Australia. It includes the Cosmic Boy processing facility, a nickel concentrator. Production ceased in September 2024 after the exhaustion of economic resources, and the site was transitioned to care and maintenance. IGO Limited acquired the operation through the takeover of Western Areas in 2022 and wholly owned it prior to the sale to Medallion Metals Limited on 2 March 2026.

Production overview - 2023: nickel 22915 t; 2022: nickel 14028 t.

The operation includes the Cosmic Boy processing facility, which is a nickel concentrator. The annual processing capacity of the concentrator was expanded to 550,000 tonnes.

over 160 employees

The Nova Operation, wholly owned by IGO Limited, is located in the Fraser Range, approximately 160km east-northeast of Norseman in Western Australia. The underground mine consists of two orebodies, Nova and Bollinger, and produces nickel, copper, and cobalt concentrates. The operation is expected to reach its end of life by late 2026. IGO is preparing for this transition and anticipates submitting a final Mine Closure Plan to the regulator in mid-2026.

Production overview - 2025: nickel 16371 t, copper 7324 t, cobalt 581 t; 2024: nickel 7085 t.

Ore is treated at a 1.8 million tonne per annum concentrator plant. The process involves single-stage crushing followed by a two-stage grinding circuit with a SAG and ball mill. A differential flotation process is then used to create separate nickel and copper concentrates, which also contain cobalt. Tailings are either pumped to a cemented paste back-fill plant for use underground or to a surface tailings storage facility.

The operation is powered by a hybrid system consisting of a 19MW diesel-fired power station and a 5.5MW solar farm. An additional 10.2MW of solar capacity is being installed to enable periods of 100% renewable power generation, allowing the diesel engines to be turned off during daylight hours. In October 2024, IGO signed a 29-month contract extension with Barminco, worth $157 million, to continue providing underground mining services.

upwards of 650 people

FMC Corporation operated an elemental phosphorus plant near Pocatello, Idaho, located within the Eastern Michaud Flats Superfund Site on the Fort Hall Indian Reservation. The plant, which was at one time the world's largest producer of elemental phosphorus, ceased operations in December 2001. The facility has since been dismantled, and the site is undergoing long-term environmental cleanup under the oversight of the U.S. Environmental Protection Agency (EPA). The plant processed phosphate ore sourced from the Gay Mine on the Fort Hall Reservation from 1949 to 1992, and then from the FMC Dry Valley Mine near Soda Springs, Idaho, from 1993 until the plant's closure. At full production, the plant employed upwards of 650 people. The closure was primarily due to the unsustainable increase in electric power costs. The site is part of the Eastern Michaud Flats Superfund Site, which was listed on the National Priorities List in 1990. Cleanup activities have included capping contaminated soil and addressing groundwater contamination.

average of 1,400 total jobs annually during the development and 11-year production period

The Arrow Deposit, part of the Rook I Project, is operated by NexGen Energy Ltd. and is situated in the southwestern Athabasca Basin of Saskatchewan, Canada. The project is 100% owned by NexGen Energy Ltd. The Arrow Deposit is a land-based, basement-hosted uranium deposit. The planned mining method is conventional long-hole stope mining in an underground operation. Access to the mine will be via two shafts: a production shaft and an exhaust shaft.

Production overview - 2025: uranium 240 Mlbs; 2022: uranium 209.6 Mlbs.

The on-site processing plant will have a nominal mill capacity of 1,300 tonnes per day. The processing method will involve a simplified circuit due to the clean metallurgy of the ore.

three trucks per day will be required to feed the mill

An economic impact study forecasts an average of 1,400 annual total jobs over the development and initial 11-year production period.

Capable of producing up to 30 million pounds of uranium annually. A 2021 feasibility study projected annual production of up to 14 million kilograms of U3O8.

The project will include an onsite mill to process an average of 1,400 tonnes of ore per day. Facilities will support the extraction and processing of uranium ore from the Arrow Deposit.

Final regulatory approval received (Licence to Prepare Site and Construct) on March 5, 2026. Provincial environmental approval in November 2023. Final investment decision made, construction scheduled for summer 2026, expected to take four years. The licence is valid until March 31, 2036.

FMC Corporation operated a phosphate mine and plant on the Fort Hall Indian Reservation.

This was a significant trona mining and soda ash processing facility.

The Alkali Chemicals business, which included this operation, was sold to Tronox Limited in a transaction that was completed on 1 April 2015.

The Silver Valley/Star project remains an underground exploration and pre-development asset for the Hecla Mining Company, located in Idaho's Silver Valley. The project is focused on silver, lead, and zinc mineralisation. As of early 2026, the project is not in production and is part of the company's exploration portfolio. Hecla is actively exploring its extensive land holdings in what is considered one of the world's most prolific silver districts. The company's exploration strategy focuses on a deep geological understanding and a systematic approach to discovery.

The metallurgical recovery rates are estimated at 93% for silver, 93% for lead, and 87% for zinc. These estimates are based on metal prices of $2,250/oz for gold, $26/oz for silver, $0.90/lb for lead, and $1.20/lb for zinc.