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The Silver Valley / Star project is an exploration-stage asset owned and operated by the United States-based Hecla Mining Company. Located in Wallace, Idaho, the project is focused on the historical Star Mine, a past producer of silver, lead, and zinc. The company has placed a "renewed emphasis" on exploration in this area, which is situated within the prolific Silver Valley mining district.

The San Juan Silver project is a high-impact development project located in the Creede Mining District, which is one of Colorado's most prolific silver districts. Hecla Mining Company has consolidated the entire 21-square-mile district under single ownership for the first time. The project's focus is on the Bulldog Mine area, which has historical production of 25 million ounces of silver between 1969 and 1985. Hecla is strategically advancing the project to access underground infrastructure for resource confirmation and expansion. The company's 2025 exploration program includes a desktop review of San Juan Silver, with a comprehensive exploration program planned for 2026. The project is part of Hecla's exploration portfolio, which is focused on expanding the company's resource base through systematic, data-driven discovery. In its 2025 10-K report, Hecla noted that the San Juan Silver project has 7 Notice-of-Intent areas for exploration and a Mining Plan of Operations with the US Forest Service.

Production overview - 2025: silver 36760000 oz, gold 26000 oz; 2024: silver 37026000 oz, gold 27000 oz.

The Rock Creek project, located near Noxon, Montana, was acquired by Hecla Mining Company in 2015. The project is currently stalled. A 2021 U.S. District Court ruling invalidated the approval for the mine's first phase, citing violations of the Endangered Species Act related to grizzly bears and bull trout. Consequently, the Rock Creek mine has no current federal authorization to proceed, and Hecla Mining Company is not actively seeking construction permits. As of December 31, 2025, the inferred mineral resources for the project were 99,258,000 tons. The deposit contains silver and copper.

Production overview - 2025: silver 4612.3691185 t.

flotation

The Republic project, situated in Washington state, is a past-producing asset held by Hecla Mining Company for exploration and potential future development. The company classifies the project as an emerging opportunity within its North American exploration portfolio. The Republic Mining District is recognized as the most significant historical gold producer in Washington. Hecla's previous operations at the site, which included the Knob Hill Mine and the Golden Promise shaft, ceased in 1995. The company continues to manage and treat mine water at the site long-term. Recent exploration efforts have yielded multiple high-grade gold intercepts, which the company believes confirm the potential for both underground and bulk-tonnage discoveries. Hecla has allocated 1% of its exploration budget to the Republic project. The project encompasses 3,583 acres, covering all major productive trends.

The historical milling process at the Republic mine involved crushing, flotation, cyanide vat leaching, and gold recovery.

The Rackla gold project, wholly owned and operated by the United States-based Hecla Mining Company, is an advanced-stage exploration property situated in the Mayo region of Yukon, Canada. Acquired through the takeover of ATAC Resources Ltd. in July 2023, the project is a key component of Hecla's strategy to increase its gold production and diversify its revenue streams. The project is currently under development.

Projected 267,000 ounces of gold over a seven-year project life (2020 PEA)

conventional carbon-in-pulp (CIP) circuit to produce gold doré

truck and shovel

Hecla Mining's strategic plans for the Rackla project included a desktop review in 2025, to be followed by a comprehensive exploration program in 2026. The company has significantly increased its total exploration and pre-development budget for 2026 to $55 million, with a focus on its core assets, including those in the Yukon. Exploration activities are planned to increase in the second and third quarters of 2026.

30-35

Underground exploration and evaluation project (formerly Montanore) to gather geological, hydrological, and environmental data for a potential future silver-copper mine. Approved work includes dewatering/rehabilitating an existing adit, extending it by approximately 4,200 feet, and constructing additional tunnels. Regulatory challenges from Montana DEQ and environmental groups are ongoing.

Located 350 kilometres north of Whitehorse, the Keno Hill silver district is situated within the traditional territory of the First Nation of Na-Cho Nyak Dun. Hecla Mining Company has 100% ownership of the project, which it acquired through the finalisation of a deal with Alexco Resource Corp. on 7 September 2022. The current mining project is separate from the historic United Keno Hill Mines operations, for which Hecla has also assumed care, maintenance and reclamation responsibilities. The year 2025 was the mine's first year of profitability and positive free cash flow generation under Hecla's ownership. In the first quarter of 2026, the mine produced 0.5 million ounces of silver and achieved its fourth consecutive quarter of positive free cash flow. First quarter production was impacted by a reduced power supply due to extreme cold weather and by mining through a lower-grade zone of the Bermingham deposit.

Production overview - 2025: silver 3020000 oz, lead 3630 t, zinc 2240 t; 2024: silver 2773873 oz, lead 2930 t, zinc 1507 t.

The mine is equipped with a 400 tonne per day mill. The construction of a backfill plant was completed and the plant was being commissioned in early 2026.

Hecla is working to ramp up throughput to the mill's permitted capacity of 440 tonnes per day. For further expansion, the company anticipates making a Yukon assessment submission by the end of 2026 and estimates that amended permits could be received around mid-2029. The permitting process faces constraints related to waste rock, tailings, and water treatment. Exploration efforts are focused on a high-potential vein intersection northeast of the Deep Bermingham ore body, as well as resource conversion and expansion in the Bermingham Bear Zone.

444 (2025), 431 (2024), 386 (2023)

Hecla is the second-largest private employer in Shoshone County, Idaho.

Production overview - 2026: silver 1200000 oz; 2025: silver 5260686 oz, lead 34284 t, zinc 14924 t.

The mill is a conventional silver and zinc flotation concentrator that produces silver-lead and zinc concentrates, which are shipped to a smelter in Trail, British Columbia, Canada. In 2024, the mine processed a record amount of ore. Metallurgical recoveries for 2025 were 94.5% for silver, 94.3% for lead, and 85.1% for zinc.

Primary access is via the Silver Shaft. An internal shaft, the #4 Shaft, reaches 9,600 feet below the surface and provides access to the highest-grade ore in the Gold Hunter/Lucky Friday Expansion Area. The Underhand Closed Bench (UCB) mining method is utilised, which has reportedly increased safety and productivity. In 2025, 88% of the tons mined were produced using the UCB method.

A surface cooling project is critical for accessing deeper, high-grade zones and is 81% complete, with an expected completion by mid-2026. A new tailings facility is also part of the current capital investment. Hecla plans to invest up to $73 million in the operation in the coming years. Exploration drilling was planned for 2024 to the east of the 30 Vein.

512 (as of 2024).

The Greens Creek mine is one of the world's largest primary silver mines, located on Admiralty Island in southeast Alaska. It is an underground operation containing silver, zinc, gold, and lead within the Admiralty Island National Monument. The site is accessed by sea and consists of the mine, an ore concentrating mill, a dry stacked tailings facility, a ship-loading facility, camp facilities, and a ferry dock. The mine operates 24 hours a day, 365 days a year.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2023: silver 9700000 oz, gold 60900 oz, lead 19600 t, zinc 51500 t.

The on-site concentrating mill processes approximately 2,300 tons of ore per day using flotation and gravity processes to produce concentrates of silver, gold, lead, and zinc. In 2025, actual metallurgical recoveries were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc. In 2024, 46% of the tailings were reused as backfill in the underground mine. The company is evaluating a pyrite concentrate circuit to improve silver and gold recoveries.

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

In January 2026, the U.S. Forest Service approved a five-year surface exploration project to potentially increase the mine's reserve base and extend its life. Hecla is also evaluating a tailings reprocessing project to recover minerals from historical waste streams. An update on this project is expected in late 2026 or early 2027. As of 31 December 2025, proven and probable reserves were 103.7 million ounces of silver, 865 ounces of gold, 240,670 tons of lead, and 646,010 tons of zinc.

Expected to employ 7,500-10,000+ people during peak construction and 4,000-6,400 long-term jobs once in production.

Production overview - 2025: copper 7300000 t, gold 404 t.

The project includes processing facilities to produce a high-quality copper-gold concentrate. Construction is planned in two phases with a combined process capacity of 90 million tonnes per annum. The process involves crushing and grinding the ore.

The mine will be a truck-and-shovel operation.

The reconstitution of the Reko Diq project was completed in December 2022. The Environmental and Social Impact Assessment (ESIA) was approved by government authorities in early 2025. In April 2026, Barrick announced a slowdown in development activity to continue a project review until mid-2027, citing the need to assess the evolving security situation, capital requirements, project financing, scope, and timeline.

The mine employs a multinational workforce including Saudi, West African, Australian and Indonesian personnel.

The mine extracts approximately 3 million tonnes of ore per year using large-scale longhole open stoping methods.

Production overview - 2025: copper 32000 t; 2024: copper 65000 t.

The mine uses conventional flotation to produce copper concentrate. A cemented paste backfill system is in operation, which was commissioned in October 2017. The plant design includes the filtering of tailings to maximise water recycling due to the arid environment.

The mining fleet includes Sandvik trucks (nine TH663i and three TH663), LHDs (seven LH621i and one LH621), four Sandvik DL421 production drills, three Sandvik DD421 development rigs, and a Rhino 100HM boxhole borer.

The mine has expanded through the development of the Lode 1 orebody, located less than one kilometre from the existing lode. The extension development, which included extensive underground capital development, major upgrades to ventilation, and paste plant facilities, was completed in 2024. Stoping at Lode 1 began in the third quarter of 2023. In January 2023, Barrick and Ma'aden signed new joint venture agreements for two exploration projects, Jabal Sayid South and Umm Ad Damar, which are near the Jabal Sayid mine. Ongoing exploration around Jabal Sayid and Umm Ad Damar has identified several prospective corridors, with a focus on untested depth potential for 2025.

As of early 2024, the mine had over 2,000 employees and expects to reach approximately 3,200 by the end of the year.

Production overview - 2009: gold 572595 oz, silver 94764 oz.

The processing plant includes crushing, grinding, flotation, pressure oxidation, and cyanide leaching circuits.

In the first quarter of 2025, an order was placed for a new fleet of Sandvik surface drill rigs, including four Sandvik DR410i rotary blasthole drill rigs and three Leopard DI650i down-the-hole drill rigs, with delivery expected between June and November 2025. This is in addition to a partnership with Sandvik for underground trucks, loaders, and drills, with the first units delivered in 2024 and continuing through 2028.

The reopening of the Porgera mine follows the signing of the Porgera Project Commencement Agreement. A Community Development Agreement (CDA) is currently under negotiation and is expected to be finalised before the end of 2025. The new ownership structure is projected to deliver 53% of the mine's overall economic benefits to PNG stakeholders over its 20-year life.

7,000

Production overview - 2025: gold 3260000 oz; 2020: gold 4630000 oz, silver 6130000 oz.

The Nevada Gold Mines complex includes two autoclave facilities, two roasting facilities, four oxide mills, a flotation plant, and five heap leach facilities.

Nevada Gold Mines is a joint venture that was formed on 1 July 2019, combining the assets of Barrick Gold and Newmont in Nevada. The complex is the single largest gold-producing complex in the world. The assets include 10 underground and 12 open pit mines. The main operations are Carlin, Cortez, Turquoise Ridge, Phoenix, and Long Canyon. In June 2024, the newest mine, Goldrush, was opened. A 200-megawatt solar power plant became operational in 2024 to supply power to the operations.

2,988

Kibali is a large-scale gold mining operation in the Democratic Republic of Congo, featuring both open pit and underground mining methods. The metallurgical plant has a twin-circuit sulphide and oxide plant with conventional carbon-in-leach (CIL) and gravity recovery, capable of processing 7.2 million tonnes of ore per year.

Production overview - 2025: gold 673000 oz; 2024: gold 687000 oz.

The metallurgical plant consists of a twin-circuit sulphide and oxide plant with conventional carbon-in-leach (CIL), including gravity recovery. The plant can process 7.2 million tonnes of ore per year.

Open pit equipment includes SY500/350 excavators, Caterpillar D8R bulldozers, Sinotruck water bowers, XCMG GR300 graders, and Pantera DP1500 I and Komatsu blast drill rigs. The underground mine is a long-hole stoping operation.

Exploration success and capital investment are expected to sustain Kibali's production profile. Recent drilling results from the ARK-KCD corridor show the potential to host significant additional orebodies and further extend the mine life. A 16MW solar plant with an integrated Battery Energy Storage System (BESS) has been commissioned, increasing the renewable energy use to 85%. The mine has three hydropower stations. In-country investment surpassed $6.3 billion, with $3.1 billion paid to local contractors and partners. The Kalimva, Ikamva and Ndala satellite pits are being mined under contracts with local businesses.

The mine is now under reclamation. Hecla Mining Company received the 2022 Environmental and Sustainability Excellence Award for its reclamation activities at the site, which included filling in open pits and returning the land to agricultural use.

Production overview - 2020: silver 1.1 Moz, gold 8752 oz; 2019: silver 2.1 Moz, gold 16955 oz.

Ore from the San Sebastian mine was transported to a leased processing facility.

open pit and underground mining equipment; Major Drilling EF-75 drills

ongoing exploration activities in the surrounding district

431 (2024); 386 (2023); 362 (as of January 2022)

Production overview - 2025: silver 5260000 oz, lead 31098.27 t, zinc 13535.15 t; 2024: silver 4900000 oz, lead 28394.81 t, zinc 12246.99 t.

The mine has a surface processing plant with a capacity of 1,000 tons of ore per day. The process involves crushing, grinding, and flotation to produce silver-lead and zinc concentrates. These concentrates are then transported to a smelter in Trail, British Columbia, Canada.

The mine utilises rubber-tired equipment for accessing veins through ramps. Jumbo drills are used for production.

The #4 Shaft project is a key growth project, providing access to the highest-grade ore in the mine's history located in the Gold Hunter/Lucky Friday Expansion Area.

800+

Production overview - 2024: lithium 218000 t; 2023: lithium 149000 t.

The site has a crushing and processing plant that uses a Dense Media Separation (DMS) concentrator. The DMS plant has an annual production capacity of about 600,000 tonnes and produces spodumene concentrate at two different grades, typically 5% and 3.5% Li2O. Construction of a flotation plant is underway to improve product recovery. An upgrade to the processing plant was completed in June 2023.

A major exploration program in 2023 confirmed significant potential for underground resources. As of January 2024, the underground Mineral Resource had increased to 19.3Mt at 1.22% Li2O. A full underground study was targeted for completion by mid-2024. In response to market conditions, the development of underground resources was deferred at the end of the first half of FY25. However, as of April 2026, tendering for an underground mining contractor had commenced, with the underground mining study expected to be completed in Q4 FY26.

A critical pit-to-port infrastructure solution in Western Australia, designed to facilitate a significant expansion of iron ore exports from the Pilbara region, centered on the development of a new export facility at Stanley Point Berth 3 in South West Creek, Port Hedland.

Expected to enable the shipment of an additional 20 million tonnes of iron ore per annum, with an expanded ambition for the hub to 25 million tonnes per year. The two proposed terminals would have a total capacity of 50 million tonnes per year.

Expanded ambition for the South West Creek iron ore mining hub, increasing the target from 20 million to 25 million tonnes per year.

approximately 1,000 employees

The Yilgarn Hub, a collection of iron ore mines in Western Australia, was operated by Mineral Resources Limited (MinRes) for 14 years, starting in 2011. MinRes ceased iron ore shipments by 31 December 2024, transitioning operations into care and maintenance in early 2025. On 30 June 2025, MinRes completed the sale of the Yilgarn Hub to Yilgarn Iron Investments Pty Ltd (YII). YII plans to restart operations, with haulage expected to recommence in 2025 and mining in late 2025, focusing on the Koolyanobbing ore processing facility.

Production overview - 2024: iron ore 7.6 Mt.

conventional dry crushing and screening to produce lump and fines products at the Koolyanobbing processing plant

five digger fleets, which included 28 trucks and 25 pieces of ancillary equipment

During peak construction, the project is expected to employ 7,500 people. Once in production, it will create 4,000 long-term jobs. As of May 2025, nearly 1,000 employees were on-site.

Production overview - 2024: copper 2.2 Mt, gold 3.9 Moz.

The project includes processing facilities to produce a high-quality copper-gold concentrate. Construction is planned in two phases with a combined process capacity of 90 million tonnes per annum. The mill is expected to process 45 million tonnes per annum starting in phase one.

The mine will be a truck-and-shovel operation. Key suppliers for processing and mining equipment include Metso, Weir, and Komatsu. The operation will use 360-ton trucks.

The reconstitution of the Reko Diq project was completed in December 2022. An updated feasibility study was approved by joint venture shareholders in April 2025. However, in an announcement on 2 April 2026, Barrick stated it was slowing development activity and extending a project review until mid-2027 due to escalating security risks. This is likely to impact the previously stated budgets and timeline, which had targeted first production by the end of 2028.

As of May 2024, the workforce stood at over 2,200 people, with plans to increase this to over 3,000 by the end of the year.

The Porgera gold mine in Enga Province, Papua New Guinea, officially recommenced operations in Q1 2024 under a new ownership and management structure, after being on care and maintenance since April 2020.

Production overview - 2009: gold 572595 oz, silver 94764 oz.

The processing plant utilises a conventional flowsheet that includes crushing, grinding, flotation, pressure oxidation, and cyanidation to recover gold.

long-term expansion target of approximately 21 tonnes of gold per annum, which is equivalent to roughly 675,000 ounces

The Rock Creek project is a pre-development asset owned by Hecla Mining Company, located in Sanders County, Montana, in the United States. The proposed underground mine is situated approximately five miles northeast of Noxon, in and adjacent to the Cabinet Mountain Wilderness. Hecla Mining acquired the project in June 2015 through its acquisition of Revett Mining Company. As a proposed silver and copper mine, Rock Creek is currently not in operation. In February 2022, Hecla Mining withdrew the project's Plan of Operations from consideration by the United States Forest Service (USFS). Consequently, there are no ongoing activities at the site beyond care and maintenance, and Hecla has indicated it is focusing on its nearby Libby Exploration Project (Montanore) first. The project has a protracted history of permitting challenges and litigation from environmental and conservation groups, primarily concerning its potential impact on the Cabinet Mountains Wilderness, water resources, and threatened species such as grizzly bears and bull trout.

Production overview - 2025: silver 148291000 oz, copper 595168 t.

processing capacity of 10,000 tons of ore per day; mill

mill and a tailings storage facility

Production overview - 2020: gold 14.436014912000001 t.

conventional crushing, grinding, and cyanidation by carbon-in-pulp (CIP), with gold recovery from loaded carbon to produce gold doré. The PEA considered the co-processing of both oxide and sulphide mineralisation.

conventional truck and shovel/loader method

Lockyer Deep-1 is a conventional gas exploration well located in the northern Perth Basin. The well is operated by Energy Resources Limited, a wholly-owned subsidiary of Mineral Resources Limited. Drilling commenced on 18 July 2021, and a significant gas discovery was made in the Kingia Sandstone formation. The project is part of the broader Lockyer Gas Project, with planning underway for a Central Processing Facility.