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In 2018, the workforce consisted of 107 company employees and 33 contract employees. By 2023, this had been reduced to 8 employees, reflecting its care and maintenance status. A minimal workforce is currently on site to maintain the facilities.

The Midas mine, also known as the Ken Snyder Mine, is an underground gold and silver operation in Elko County, Nevada, United States. It is 100 per cent owned and operated by Hecla Mining Company. Modern mining commenced in 1998, and the mine has historically produced 2.2 million ounces of gold and 27 million ounces of silver. Production was suspended in late 2019, and as of May 2026, the mine is on care and maintenance.

Historically, the mine has produced 2.2 million ounces of gold and 27 million ounces of silver. In 2018, production was 13,852 ounces of gold and 164,054 ounces of silver. In 2020, production was 31,800 ounces of gold and 37,400 ounces of silver. In 2021, production was 169,000 ounces of gold and 1,700,000 ounces of silver.

The processing facility includes a fully permitted 1,200 tonne-per-day conventional mill. It uses gravity separation and cyanide leaching with a Merrill-Crowe recovery circuit, a refinery, and a cyanide destruction circuit. The permitted tailings storage facility has an estimated capacity for approximately 15 years of operation.

The processing facility includes a crushing system, a single-stage ball mill, cyclones, a gravity concentrator, leach and carbon-in-pulp circuits, a cyanide detoxification circuit, and a Merrill-Crowe precipitation circuit.

Hecla Mining Company is evaluating a restart of operations, termed the Midas restart project, which could serve as a central processing hub for multiple ore sources in the region. Recent exploration has yielded promising results, including new high-grade gold discoveries at the Pogo Trend. The company is assessing the refurbishment of existing infrastructure for a restart with lower capital intensity. A potential restart development decision is targeted for 2029-2030.

While on care and maintenance, the workforce is minimal, with as few as two employees reported. In December 2020, Hecla's Nevada Operations unit, which includes Fire Creek, had 76 employees.

The Fire Creek Mine, an underground operation in Lander County, Nevada, United States, is owned and operated by Hecla Mining Company, which acquired it in July 2018. The mine has been on care and maintenance since the second quarter of 2021, following the processing of its remaining non-refractory ore stockpile. The deposit is a low-sulfidation, epithermal type, featuring gold and silver mineralisation in steeply dipping veins, alongside structurally controlled refractory sulfide mineralisation.

Production figures include 683 ounces of gold in 2023, 26,214 ounces of gold and 37,400 ounces of silver in 2021, 31,800 ounces of gold and 37,400 ounces of silver in 2020, 52,616 ounces of gold and 63,279 ounces of silver in 2019, 107,143 ounces of gold and 72,283 ounces of silver in 2017, and 101,286 ounces of gold and 80,593 ounces of silver in 2016.

Historically, ore from Fire Creek was processed using various methods, including heap leaching in the 1980s. More recently, non-refractory ore was transported to Hecla's Midas mill for processing, which involved grinding, gravity concentration, cyanidation, and Merrill-Crowe precipitation. An agreement also existed with Nevada Gold Mines to process a bulk sample of Fire Creek's refractory ore. The Midas mill has a capacity of 1,200 tonnes per day.

Equipment mentioned on site has included Sandvik jumbo drills and bolters, loaders, and haul trucks.

A restart of mining operations is contingent on exploration success. Hecla Mining is conducting a strategic review of its Nevada portfolio, including Fire Creek, and has significantly increased the exploration budget for these assets in 2026. The company has highlighted that 90 per cent of the Fire Creek district remains unexplored using modern techniques. The potential restart of the nearby Midas mill is being assessed, which could serve as a central processing hub for ore from multiple regional sources, including Fire Creek.

Iron oxide copper-gold mineral deposit located in the Carajás Mineral Province in the state of Pará, northern Brazil. The project is situated approximately 100 km south of Parauapebas and 30 km east of Canaã. It is also described as being within a 40 km trucking distance of the Antas processing hub.

proposed mining rate is 1.0 Mtpa

conventional crushing, grinding, and flotation. Run-of-mine ore from Santa Lúcia to be processed at the central processing facility at the Carajás East Hub, located at the Antas mine.

The Gurupi Project, formerly known as the CentroGold Project, is a district-scale gold project covering approximately 2,100 square kilometres along an 80-kilometre mineralised trend. It consists of three known open-pit deposits: Blanket, Contact, and Chega Tudo. G Mining Ventures acquired the project from BHP in the fourth quarter of 2024. The previous Pre-Feasibility Study completed by OZ Minerals in 2019 is no longer considered relevant by the new ownership. A court ruling in July 2025 annulled previous environmental licenses and confirmed G Mining's ability to initiate a new environmental licensing process.

G Mining Ventures released an updated NI 43-101 compliant mineral resource estimate in the first quarter of 2025. The company is focusing on expanding the mineral resources and expects to release a Preliminary Economic Assessment (PEA) in the second half of 2026. The first drilling program under the new ownership was scheduled to commence in November 2025.

up to 150 personnel

Oak Dam is an advanced exploration project. BHP is progressing the Oak Dam Underground Access Project to conduct further exploration from underground drill platforms.

up to 14 drill rigs, twin declines, box cut, portal development, utility facilities, diesel generation plant, refrigeration plant, administration buildings, maintenance buildings, concrete batch plant, waste rock landform

BHP is progressing the Oak Dam Underground Access Project to conduct further exploration from underground drill platforms. Construction of declines and infrastructure planned to commence in FY25 and project completion in FY29.

During the construction phase, approximately 100 people were required, and once in production, the steady-state operations were expected to employ 450 people.

Ore from the Pedra Branca underground mine is transported approximately 75km to the Antas North processing plant. The plant has a capacity of 800 ktpa, and tailings are deposited in the exhausted Antas North open pit.

OZ Minerals commenced mine construction in 2019, with the first development ore targeted for mid-2020 and ramp-up to full production in 2022. BHP acquired OZ Minerals in May 2023. On 15 August 2025, BHP entered into a binding agreement to sell its Carajás assets, including Pedra Branca, to a wholly-owned subsidiary of CoreX Holding. This transaction was completed on 2 April 2026. The new operating company is named CoreX Copper Brasil.

Production overview - 2022: copper 55547 t, gold 124843 oz.

conventional crushing, grinding and flotation

truck haulage, deep shaft ore hoisting system, Wira Shaft

The Prominent Hill Operations Expansion (PHOX) project is a significant underground expansion to transition the mine from truck haulage to a deep shaft ore hoisting system. This project includes the construction of the Wira Shaft, a vertical shaft which was completed in the fourth quarter of fiscal year 2025. The new hoisting system is expected to come online in the second half of fiscal year 2027 and is designed to extend the mine's life to at least 2040. The project involves an investment of US$0.9 billion.

approximately 700 (as of June 2024)

The Carrapateena mine produces copper concentrate containing gold and silver. A major development is the transition from the current sub-level caving mining method to a block cave for the lower half of the orebody, aiming to make the mine a multi-generational, low-cost operation.

Production overview - 2023: copper 11700 kt, gold 15304 oz, silver 157000 koz.

Ore is processed on-site through conventional crushing, grinding, and flotation methods to produce concentrate. The processing plant includes a semi-autogenous grinding (SAG) mill and a ball mill. A second crusher (Crusher 2) was commissioned in the third quarter of FY2024 to enhance productivity from the sub-level cave. There are also plans for the commissioning of a HydroFloat coarse particle flotation (CPF) plant.

semi-autogenous grinding (SAG) mill, ball mill, second crusher (Crusher 2), HydroFloat coarse particle flotation (CPF) plant

The Carrapateena Expansion Project is focused on developing the lower half of the orebody into a block cave. This expansion is expected to unlock the mine's potential to be a long-life, low-cost operation. The development of the decline for the block cave was ongoing in FY2024. A major development is the transition from the current sub-level caving mining method to a block cave for the lower half of the orebody. This expansion aims to make the mine a multi-generational, low-cost operation.

approximately 7,000 people

Nevada Gold Mines is a joint venture that commenced operations on 1 July 2019, combining the assets of Barrick Gold and Newmont in northern Nevada. The complex is the single largest gold-producing complex in the world and includes multiple mines and processing facilities. The primary assets are the Carlin, Cortez, Turquoise Ridge, Phoenix, and Long Canyon operations. The Long Canyon mine was placed on care and maintenance at the end of 2023.

Production overview - 2023: gold 1170000 oz, silver 952702 oz, copper 35406713 lbs; 2022: gold 1169000 oz.

The Nevada Gold Mines complex features a wide array of processing facilities tailored to different ore types. These include: Carlin Complex: Gold Quarry Roaster, Goldstrike Autoclave, and Goldstrike Roaster. Recent investments have included the expansion of the Gold Quarry roaster, which increased its throughput by 20%, and process improvements at the Goldstrike roaster. Cortez Complex: An oxide mill and multiple heap leach pads. Turquoise Ridge Complex: The Sage Autoclave and a carbon-in-leach (CIL) plant. Significant upgrades have been made to the Sage autoclave to improve its reliability and performance. Phoenix Complex: A flotation mill, a copper leach pad, and a solvent extraction-electrowinning (SX/EW) plant.

The open pit operations are undergoing a significant fleet upgrade with the acquisition of 63 new Komatsu 930E-5 haul trucks. This is part of a broader initiative to recapitalise the operations for the next 10-15 years. The underground mines utilise a range of standard equipment, including load-haul-dump vehicles, haul trucks, and drilling equipment.

The Goldrush project is a key component of Nevada Gold Mines' growth strategy. The project received its Record of Decision in late 2023, with a total anticipated capital expenditure of approximately $1 billion on a 100% basis. Production from Goldrush is expected to ramp up, reaching approximately 130,000 ounces in 2024 and growing to around 400,000 ounces per year by 2028 (100% basis). The development of Goldrush is expected to create approximately 500 construction jobs and 570 new operational jobs. Another significant development is the Barrick-owned Fourmile project, which has the potential to be contributed to the Nevada Gold Mines joint venture if certain conditions are met. Exploration efforts are ongoing across the complex to identify further growth opportunities.

3173 (including contractors) as of fiscal year 2025.

Production overview - 2025: gold 20.930000000000003 t; 2024: gold 686000 oz.

The metallurgical plant includes a twin-circuit sulphide and oxide plant with conventional carbon-in-leach, gravity recovery, a flotation circuit, and an ultra-fine grind circuit.

Drilling results from the ARK-KCD corridor have shown the potential for significant additional orebodies that could extend the mine's life.

The Monte Cristo project is situated in Esmeralda County, Nevada, USA. It is part of Hecla Mining Company's Nevada portfolio, which is a high-impact development project. The project is in the exploration stage, with ongoing detailed mapping, geochemistry, and cross-section generation to advance targets to a drill-ready status.

Production overview - 2025: gold 687000 oz, silver 8466000 oz.

7500 (construction); 4000 (operation)

Production overview - 2025: copper 7300000 t, gold 404.35 t.

The project will be a truck-and-shovel open pit operation with processing facilities to produce a high-quality copper-gold concentrate. Construction is planned in two phases. Phase 1 is expected to have a processing capacity of 45 million tonnes per annum, expanding to a combined 90 million tonnes per annum in Phase 2.

Key suppliers for processing and mining equipment include Metso, Weir, and Komatsu.

The reconstitution of the Reko Diq project was completed in December 2022. An updated feasibility study has been completed and approved by the joint venture shareholders. The Environmental and Social Impact Assessment (ESIA) was approved by government authorities in early 2025. Fluor has been selected as the lead engineering, procurement, and construction management (EPCM) partner. The total estimated capital cost for Phase 1 is between $5.6 billion and $6.0 billion, with Phase 2 estimated between $3.3 billion and $3.6 billion. In early 2026, Barrick announced it was slowing development activity and extending the project review until mid-2027 due to escalating security risks in the region. This may lead to significant increases in the estimated capital budget and timeline. The previously targeted first production by the end of 2028 is now under review. The project is expected to create approximately 7,500 jobs during peak construction and 4,000 long-term positions once operational.

The workforce at Veladero is approximately 3,800 people, with some records indicating 4,162 including contractors as of late 2022. Around 91% of the labour force is sourced from the local San Juan province.

The Veladero mine is an active, open-pit gold and silver operation located in the San Juan Province of Argentina. It is a 50/50 joint venture between Barrick Gold Corporation and Shandong Gold Group Co., Ltd. The mine is situated at high altitude, between 4,000 and 4,850 metres above sea level, and exploits a high-sulphidation epithermal gold-silver system.

Production at the mine was 414,000 ounces of gold in 2023 and 505,000 ounces of gold in 2024. The forecast for 2025 is around 460,000 ounces of gold. Accumulated production as of December 2024 was 11,398,729 ounces of gold and 21,398,668 ounces of silver.

Ore is processed using a conventional truck and shovel method, involving a two-stage crushing circuit before valley-fill heap leaching with a cyanide solution. Gold and silver are then recovered using a Merrill-Crowe process, producing gold doré bars on-site. The crushing plant has a capacity of approximately 83,000 tonnes per day. By-product mercury is also collected and stored.

The mine's fleet includes 218-tonne rigid frame haul trucks, hydraulic shovels, and front-end loaders.

An investment of US$271 million is planned through 2027 to sustain an average annual production of approximately 400,000 ounces. A further US$400 million investment has been proposed for the 2025-2028 period under Argentina's Large Investment Incentive Scheme (RIGI) to expand production capacity, expected to add about 1.6 million ounces of gold production over the mine's life. This includes the ongoing construction of new phases for the leach pad, with Phase 7B completed in December 2024 and work on Phase 8, divided into three stages, expected to be completed by 2026. A new Phase 9 has also been announced. A power line connecting the mine to the electrical grid in Chile was energised in December 2022 to improve efficiency and reduce emissions.

By the end of 2024, New Porgera Limited is expected to employ over 3,200 people.

The Porgera mine, located in Enga Province, Papua New Guinea, was placed on care and maintenance in April 2020 after its special mining lease was not renewed. Following extensive negotiations, a new special mining lease was issued in October 2023, and the mine officially restarted operations on 22 December 2023. The first gold pour after the restart was expected in the first quarter of 2024.

Production overview - 2019: gold 600000 oz.

The processing methods at Porgera include gravity concentration, flotation, pressure oxidation, and cyanide leaching.

The Porgera mine had been on care and maintenance since April 2020 after its special mining lease was not renewed by the government of Papua New Guinea. Following extensive negotiations, a new special mining lease was issued to New Porgera Limited in October 2023. A Porgera Project Commencement Agreement has been finalised, and a Community Development Agreement is under negotiation. The economic benefits from the mine are to be shared 53% by the PNG stakeholders and 47% by BNL.

Approximately 7,000 (2020)

Joint venture between Barrick Gold Corporation (61.5% and operator) and Newmont Corporation (38.5%).

Production overview - 2022: gold 1850000 oz, copper 36736179 lbs, silver 1322700 oz; 2021: gold 173067 oz, silver 1322700 oz, copper 36736179 lbs.

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

Hecla Mining is currently engaged in an exploration project named "Silver Valley/Star" in Wallace, Idaho, within the Silver Valley. The project is part of Hecla's strategy to expand its resource base in one of the world's most prolific silver districts.

Advanced-stage exploration property in Yukon, Canada, wholly owned by Hecla Mining Company, comprising Tiger and Osiris deposits.

The project could produce approximately 267,000 ounces of gold over its life, with an average diluted grade of 3.82 grams per tonne. Peak annual production was forecast to be 72,860 ounces of gold in the first year of operation, with an average of 61,900 ounces per year over the first three years.

conventional crushing, grinding, and cyanidation by carbon-in-pulp (CIP), with gold recovery from loaded carbon to produce gold doré.

approximately 7,000 people

Nevada Gold Mines is a joint venture company operated by Barrick Gold Corporation, which holds a 61.5% ownership stake, with Newmont Corporation owning the remaining 38.5%. The joint venture combined the significant mining assets of both companies in northeastern Nevada, United States, to create the world's largest gold-producing complex. The operation is active and employs a workforce of approximately 7,000 people.

2023: Barrick attributable gold production ~1.9 Moz, Newmont attributable gold production 1.17 Moz. 2022: Barrick attributable gold production ~1.9 Moz, Newmont attributable gold production 1.169 Moz.

Two autoclave facilities, two roasting facilities, four oxide mills, a flotation plant, and five heap leach facilities. Oxide ores are treated using heap leaching. High-grade oxide and sulphide ores can be processed through conventional milling and cyanidation. For refractory ores, operations use roasting and autoclaves for pre-treatment. The Carlin complex includes the Gold Quarry Roaster, Goldstrike Autoclave, and Goldstrike Roaster. The Cortez facilities include an oxide mill (Pipeline mill) and heap leach areas. The Phoenix complex has a copper leach pad, an SX/EW plant, and a mill. The Turquoise Ridge Complex uses the Sage Autoclave and the Juniper Oxide CIL plant.

During its peak construction phase, the project is anticipated to employ 7,500 people. Once operational, it is expected to create 4,000 long-term jobs.

Production overview - 2024: gold 13000000 oz, copper 7300000 t.

The project will involve a processing plant to produce a copper-gold concentrate. The development is planned in two phases, with a combined processing capacity of 90 million tonnes per annum when fully operational. Phase 1 will have a processing capacity of 45 million metric tons annually, which will be doubled in Phase 2.

The mine will be a truck-and-shovel operation. Key partners selected to supply processing and mining equipment include Metso, Weir, and Komatsu.

Development planned in two phases, with a combined processing capacity of 90 million tonnes per annum. Phase 1 at 45 million metric tons annually, doubled in Phase 2. Development activity slowed in April 2026 due to escalating security risks, with project review extended until mid-2027, impacting budget and timeline.

The complex has a workforce of approximately 900 employees and contractors.

The Turquoise Ridge Complex is an active gold and silver producer located in Humboldt County, Nevada. It is an integrated operation formed in 2019 by combining Barrick's Turquoise Ridge Mine and Newmont's Twin Creeks complex. The joint venture, Nevada Gold Mines, is operated by Barrick Gold Corporation (61.5% interest) and Newmont Corporation (38.5% interest). The operation involves both underground and open pit mining methods, with underground producing high-grade refractory gold ore and surface operations consisting of the Mega and Vista open pits. As of late 2025, open pit mining was paused, with processing continuing from stockpiles. The mine life is projected to extend to 2050.

In 2023, the Turquoise Ridge Complex produced 514,386 ounces of gold and 163,388 ounces of silver. Production in 2022 was approximately 500,000 ounces of gold.

Processing of ore is conducted through multiple facilities. The Sage autoclave processes high-grade refractory ore, while the Juniper oxide mill handles higher-grade oxide ores. Lower-grade oxide material is treated on heap leach pads. Gold is recovered using conventional carbon-in-leach technology and pressure oxidation for refractory ores.

Underground operations utilise jumbo drills and 45-tonne haul trucks. The surface mining fleet includes Hitachi hydraulic excavators and Caterpillar haul trucks.

A significant expansion project involved the commissioning of a third shaft for the underground mine, reaching a depth of over 3,200 feet. This expansion is expected to increase ore extraction by 40% and add 15 years to the mine's operational life.

The Rackla project is an advanced-stage exploration property acquired by Hecla Mining Company through its acquisition of ATAC Resources Ltd. in 2023. The project consists of two primary deposits: the Osiris deposit, a Carlin-type system, and the Tiger deposit, a Carbonate Replacement deposit. For 2025, a desktop review of the project is planned, which will be followed by a comprehensive exploration program in 2026.

Production overview - 2022: gold 32.4718 t; 2020: gold 14.4358 t.

A 2020 Preliminary Economic Assessment for the Tiger Deposit proposed a processing plant using conventional crushing, grinding, and cyanidation by carbon-in-pulp to produce gold doré. Metallurgical testing for the Osiris deposit has confirmed viable processing paths with flotation, pre-treatment by either pressure oxidation or roasting, and cyanide leaching, with gold recoveries over 80%.

Hecla Mining is planning a desktop review of the Rackla project in 2025, to be followed by a comprehensive exploration program in 2026. In February 2026, the company announced it would spend $55 million on exploration and pre-development activities across its projects, nearly doubling its investment from the previous year.

The Zafranal project, operated by Compañía Minera Zafranal S.A.C., is a copper-gold porphyry deposit located in the Arequipa region of southern Peru. The project is a joint venture between Teck Resources Limited, which holds an 80% interest, and Mitsubishi Materials Corporation, with the remaining 20%. As of early 2026, the project's status is under development, but it is being transitioned to "asset preservation". A decision on construction has been postponed, and early work activities were scheduled to cease in the first quarter of 2026. The project has received regulatory approval for its Environmental Impact Assessment from SENACE, Peru's National Service of Environmental Certification for Sustainable Investments. The proposed mining method is a conventional open-pit truck and shovel operation. The project plans include two pits, Zafranal and Victoria.

Production overview - 2018: copper 1674660 t, gold 30.849 t; 2016: copper 1604000 t, gold 28.07 t.

Ore will be processed at a concentrator plant with a capacity of up to 80,000 tonnes per day. The processing will involve crushing, grinding, flotation, thickening, and filtering to produce copper-gold concentrates.

truck and shovel

5,000 direct and indirect jobs

Currently in permitting and engineering stage. Environmental Impact Assessment and Change of Land Use permit applications submitted in January 2024. Updated feasibility study expected in early 2024. Final investment decision anticipated in H2 2025.

First production is expected in 2026. The project is expected to produce an average of 63,000 tonnes of copper and 147,000 tonnes of zinc in concentrate per year over its first five years.

conventional flotation plant to produce copper and zinc concentrates, with a processing capacity of up to 20,000 tonnes per day.

trucks and shovels