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IGO Limited ceased nickel production at the Forrestania Operation in September 2024, at which point the site was transitioned to care and maintenance. IGO retains the rights to explore for, develop, and mine nickel and lithium minerals at the Forrestania tenements.

Production overview - 2024: nickel 7571 t; 2023: nickel 22915 t.

Cosmic Boy Concentrator

Cosmic Boy Concentrator and its associated infrastructure

Medallion Metals plans to use the Forrestania infrastructure to process ore from its Ravensthorpe Gold Project, located about 160km to the south. The company is progressing technical work across the Forrestania Gold Project to support development and explore for gold.

In the September quarter of 2025, lithium hydroxide production reached 46% of nameplate capacity. For the 2024-2025 financial year, the refinery produced 6,782 tonnes of lithium hydroxide. The joint venture has a production target of 9,000–11,000 tonnes of lithium hydroxide for 2025-26.

The refinery is designed to process spodumene concentrate from the Greenbushes mine into battery-grade lithium hydroxide. It is a fully automated facility. The plant has a nameplate capacity of 24,000 tonnes per annum from Train 1. By-products include Tianqi Aluminosilicate (TAS), Gyplime and Sodium Sulphate.

The refinery has faced operational problems and has been operating at a loss. IGO has written down the value of its 49 per cent stake in the refinery to zero and, as of March 2026, wants the operation mothballed. In January 2025, the TLEA shareholders, IGO and Tianqi Lithium Corporation, agreed to cease all works and activities on Lithium Hydroxide Plant 2 (LHP2) at Kwinana. IGO has low confidence in the ability of the asset to achieve meaningful, sustained improvement. Tianqi, however, views the refinery as a critical asset in its long-term strategy. A major shutdown was performed in October 2024 for maintenance and to implement rectification and debottlenecking projects.

1700

Production overview - 2025: lithium 1480000 t; 2024: lithium 5800000 t.

The operation consists of a large open-pit mine and four processing plants. Three of these plants produce chemical-grade lithium concentrates (CGP1, CGP2, and the Tailings Retreatment Plant), and one produces technical-grade lithium concentrates (TG). The processing method involves upgrading the lithium mineral, spodumene, through gravity, heavy media, flotation, and magnetic processes. A third chemical-grade processing plant (CGP3) was commissioned in December 2025, increasing the site's processing capacity by 500,000 tonnes per annum.

An expansion project is underway to increase the production of lithium mineral concentrate and spodumene ore. This involves the construction of new waste rock landforms, expansion of the Salt Water Gully Dam, and other infrastructure developments. The expansion would increase the development envelope by 28 per cent to 2,826 hectares. The commissioning of Chemical Grade Plant 3 (CGP3) in December 2025 represents a 31% increase in site processing capacity. There are also development options for an additional Chemical Grade Plant 4 (CGP4).

Approximately 400 people were employed on site in 2017.

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

processing plant that produces nickel, copper, and cobalt concentrates. Mining methods include room-and-pillar and sub-level open stoping.

solar farm expansion project was completed in fiscal year 2024

The Casa Berardi mine is located in the Abitibi Region of northwestern Quebec, Canada, approximately 95 kilometres north of La Sarre. The Casa Berardi operation includes both open-pit and underground mining. As of early 2024, the strategic plan was to transition Casa Berardi to an open-pit-only operation.

Production overview - 2023: gold 90363 oz; 2021: gold 134511 oz.

processing mill with a capacity of 3,730 tonnes per day; involves primary jaw crusher, semi-autogenous grinding (SAG) mill, cyclone system, and ball mill. Metallurgical recovery for gold in 2023 was 85%.

drilling, blasting, and truck/shovel operations

processing mill has potential for future expansion to 4,400 tonnes per day

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.

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 Silver Valley/Star project is situated in Wallace, within the Silver Valley of Idaho, a historically significant silver-producing district. It is officially classified by Hecla Mining Company as an exploration project, with a renewed emphasis on exploration across its extensive land package. Hecla's exploration strategy includes targeting extensions of existing ore deposits and untested geochemical anomalies, leveraging refined structural models from recent drilling to improve the understanding of mineralisation controls.

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.

30-35

The Libby Exploration Project, formerly known as the Montanore Project, is located approximately 20 aerial miles south of Libby in Lincoln County, Montana. Hecla Mining Company acquired the project in 2016. The project is focused on exploring a stratabound sediment-hosted silver-copper deposit. In October 2025, the U.S. Forest Service issued a final approval for Hecla to proceed with its Plan of Operations for exploration activities. This allows the company to dewater and rehabilitate an existing underground adit, extend the tunnel by approximately 4,200 feet, and conduct further underground exploration to collect data. The purpose of this work is to determine the economic viability of the mineralisation and to gather geological and metallurgical data. As of 31 December 2024, the project has an Inferred Resource of 112.2 million tons grading 0.7% copper and 1.6 ounces per ton of silver. This equates to contained metal of over 1.5 billion pounds of copper and 183 million ounces of silver.

Production overview - 2024: copper 1500000000 lbs, silver 183000000 oz.

The project is currently in an exploration phase to collect data that will inform project engineering and feasibility. This includes analysing samples to obtain geologic and metallurgical data on the characteristics of the copper and silver mineralisation.

Since being placed on care and maintenance, there is no active workforce dedicated to production.

The Hollister mine, located in Elko County, Nevada, is a gold and silver asset wholly owned and operated by the United States-based Hecla Mining Company. The underground mine is currently on care and maintenance, with production suspended in the third quarter of 2019. Hollister is part of Hecla's "Nevada Operations", which also includes the Fire Creek, Midas, and Aurora mines. Hecla is actively engaged in exploration activities on the property, with a focus on the Hatter Graben deposit, a vein system located to the east of the main Hollister mine workings. Development of a drift to access the Hatter Graben area commenced in the third quarter of 2018. Future development of the Hatter Graben or other expansions at Hollister will necessitate state and federal approvals for waste rock and underground water management.

Production overview - 2025: gold 141600 oz, silver 1251700 oz.

Ore from any future operations at Hollister is planned to be hauled to the nearby Midas mill for processing, which would eliminate the need for constructing a new mill on-site.

Hecla Mining Company's exploration efforts are concentrated on the Hatter Graben area, which is considered to have significant expansion potential. The development of an underground drift to access this area has been a key activity.

277 employees

The Keno Hill mine, acquired by Hecla Mining Company in September 2022, is an operating underground silver, lead, zinc, and gold mine in Yukon Territory, Canada. It utilizes a conventional flotation mill with a current permitted capacity of 400 tonnes per day, with plans to expand to 600 tonnes per day. The mine achieved profitability in 2025 and has an 11-year reserve-based mine plan.

Production overview - 2025: silver 3020000 oz, lead 3630 kt, zinc 2240 kt; 2024: silver 2800000 oz.

The Keno Hill mine utilises a conventional flotation mill with a current permitted capacity of 400 tonnes per day. The process produces two types of concentrate: a high-grade silver-lead concentrate and a zinc-silver concentrate. Hecla is implementing a phased approach to optimise throughput with the ultimate goal of expanding the mill's capacity to 600 tonnes per day. The backfill plant construction was completed and was being commissioned in early 2026.

Hecla Mining Company acquired 100% ownership of the Keno Hill Silver Project from Alexco Resource Corp., with the deal finalised on 7 September 2022. A NI 43-101 Technical Report filed in March 2024 outlined an 11-year reserve-based mine plan. The company is advancing permitting and investing in infrastructure to support a production expansion to 600 tonnes per day. However, the operation has faced challenges, including power curtailments from the utility provider which led to operational stoppages in late 2024 and early 2025. Exploration continues to be a primary focus, with drilling aimed at expanding high-grade mineralisation at the Bermingham deposit and other targets within the 242-square-kilometre property.

386 employees (2023)

The primary mining method is the Underhand Closed Bench (UCB) technique, which was used for approximately 87% of the tons mined in 2023.

Production overview - 2025: silver 5260686 oz, lead 31090.9 t, zinc 13538.9 t; 2024: silver 4890949 oz, lead 28367.9 t, zinc 12258.7 t.

The mine has a conventional silver and zinc flotation concentrator with a current operating rate of 1,000 short tons per day. It produces silver-lead and zinc concentrates that are shipped by truck to a smelter in Trail, British Columbia, Canada.

The mine utilises rubber-tired equipment to access the veins through ramps developed outside of the ore body.

A significant capital project is the #4 Shaft, which extends 9,600 feet below the surface to access high-grade ore in the Gold Hunter/Lucky Friday Expansion Area. A new surface cooling project is expected to be completed by mid-2026 to increase the designed cooling capacity at the mine. For 2026, the company plans a significant increase in investment in exploration and pre-development.

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.

The Gryphon Summit Project is an exploration property located in Nevada, USA, covering over 12,000 hectares. It is at the Target Definition stage of exploration, showing potential for silver, lead, zinc, gold, copper, and critical metals mineralisation within carbonate replacement and epithermal gold systems.

The Kinskuch property is now part of Dolly Varden Silver Corporation's larger Kitsault Valley Project, located in the Golden Triangle of British Columbia. The acquisition in May 2025 increased the Kitsault Valley Project size to approximately 77,000 hectares. The property is considered prospective for silver, gold, and copper mineralization. A renewed five-year exploration permit is in place for the Kinskuch property, covering both Nisga'a and Gitanyow Traditional Lands.

The acquisition in May 2025 increased the Kitsault Valley Project size to approximately 77,000 hectares. Dolly Varden commenced a significant exploration program in 2025 for the broader Kitsault Valley Project, with a minimum of 35,000 metres of diamond drilling planned.

The Hollister mine is located in Elko County, Nevada, United States, and is fully owned and operated by Hecla Mining Company. The mine is currently under care and maintenance, with production having been suspended in the third quarter of 2019. It is an underground operation focused on gold and silver. The pre-existing infrastructure and permits at Hollister are expected to facilitate the advancement of any new discoveries. Ore from any future operations at Hollister could potentially be processed at Hecla's nearby Midas mill.

exploring the potential of the Hatter Graben vein system, which is located near the existing Hollister underground development. The pre-existing infrastructure and permits at Hollister are expected to facilitate the advancement of any new discoveries. Ore from any future operations at Hollister could potentially be processed at Hecla's nearby Midas mill.

two employees

The Fire Creek mine is an underground gold and silver operation in Lander County, Nevada, owned 100% by Hecla Mining Company. It was placed on care and maintenance in Q2 2021 after processing remaining ore. A 2024 report indicated two employees and no gold production.

Hecla Mining Company has indicated that its Nevada portfolio, which includes Fire Creek, was part of a strategic reassessment in 2025 to re-rank priorities. For 2026, the company has announced a significantly increased exploration budget, a portion of which is allocated to its Nevada assets.

The Connaught project, located 65 km west of Dawson City, Yukon, Canada, was acquired by Hecla Mining in July 2023. It is an exploration-stage project prospective for high-grade silver-lead-zinc-copper-gold veins and copper-molybdenum-gold porphyry style mineralisation.

Production overview - 1966: gold 0.00004767 t, silver 0.0521419 t, lead 15.2851 t.

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

The Keno Hill property, located in Canada's Yukon Territory, was acquired by Hecla Mining Company through the acquisition of Alexco Resource Corp. in 2022. Situated 350 kilometres north of Whitehorse, the site is within the traditional territory of the First Nation of Na-Cho Nyak Dun and covers 242 square kilometres. Historically, the Keno Hill district was Canada's second-largest silver producer. The mine began production under Hecla's ownership in the second half of 2023 and achieved its first full year of profitability with positive free cash flow in 2025. The property includes five deposits: Bellekeno, Lucky Queen, Flame & Moth, Onek, and Bermingham.

Production overview - 2025: silver 3020000 oz, lead 3633 kt, zinc 2240 kt; 2024: silver 2800000 oz.

The site is equipped with a 400 tonne per day mill. Hecla is working towards reaching the permitted throughput of 440 tons per day. A backfill plant was completed and is being commissioned as of early 2026.

Hecla Mining is focused on exploration to expand resources, with a significant portion of the exploration budget dedicated to Keno Hill. The primary focus is on testing a high-potential vein intersection near the Deep Bermingham ore body and continuing resource conversion and expansion in the Bermingham Bear Zone. A March 2024 technical report outlined 55 million ounces of silver reserves, a 45% increase since the acquisition. The current reserves are sufficient for an 11-year mine life.

386 (planned for 2023)

Production was impacted by a temporary suspension of operations from August 2023 to January 2024 due to a fire.

Production overview - 2023: silver 3086119 oz, lead 19543 t, zinc 7944 t; 2022: silver 4412764 oz, lead 29233 t, zinc 12436 t.

The on-site mill has a capacity of 1,000 tons of ore per day and produces silver-lead and zinc concentrates. The processing method is a conventional lead/zinc flotation flowsheet. The process includes primary jaw crushing, secondary and tertiary cone crushing, ball milling, and flotation circuits for lead and zinc. The concentrates are thickened and filtered before being shipped to a smelter in Trail, British Columbia, Canada.

The mine utilises rubber-tired equipment for accessing veins through ramps. This includes jumbo drills and mechanised mining equipment with truck haulage to the Silver Shaft. The #4 Shaft features a fully-automated 200 ton per hour material handling system.

Hecla has been implementing the Underhand Closed Bench (UCB) mining method, which has improved safety and productivity. The #4 Shaft project provides access to higher-grade ore in the Gold Hunter/Lucky Friday Expansion Area and is a key component of the mine's future. In 2024, exploration drilling is planned to the east of the 30 Vein. A capital investment of up to $73 million is planned for underground development, a new tailings facility, and a surface cooling project expected to be completed by mid-2026.