Directory

512 (as of 2024)

Production overview - 2025: silver 8700000 oz, gold 59349 oz; 2023: silver 9700000 oz, gold 60900 oz.

The mine uses flotation and gravity processes to recover silver, gold, lead, and zinc. Major facilities include an ore concentrating mill and a dry stack tailings storage facility.

The U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project in January 2025. Hecla Greens Creek Mining Company is proposing to extend its surface exploration authorisation by five years to incorporate new areas of interest.

4,000 positions during the construction phase and 1,400 operational jobs once the mine is active.

The NuevaUnion Project is a significant undeveloped copper-gold-molybdenum asset located in the Huasco Province of the Atacama Region in Chile. It is a 50/50 joint venture between Canadian mining company Teck Resources Limited and the American Newmont Corporation. The project combines two separate deposits, the Relincho (copper-molybdenum) and La Fortuna (copper-gold), which are situated approximately 40 kilometres apart.

conventional open-pit mining operation. The initial development plan involves transporting ore from the La Fortuna deposit via a conveyor to a single-line mill and concentrator facility to be located at the Relincho site.

The Kay Mine Project is Arizona Metals’ 100%-owned high-grade VMS copper-gold-zinc-silver-lead development project in Yavapai County, Arizona. The deposit has been defined from about 60 metres depth to at least 900 metres and remains open along strike and at depth. Its 2025 mineral resource estimate outlines 9.28 million tonnes in the Indicated category at 3.18% copper equivalent and 0.86 million tonnes in the Inferred category at 2.44% copper equivalent. The project benefits from road, power and water access, private and BLM land tenure, no royalties and a location within an established Arizona mining district. Current resource estimate: Indicated resource: 9.28 million tonnes grading 1.39 g/t gold, 27.6 g/t silver, 0.97% copper, 0.33% lead and 2.39% zinc, equal to 3.18% copper equivalent. Inferred resource: 0.86 million tonnes grading 1.06 g/t gold, 15.4 g/t silver, 0.87% copper, 0.20% lead and 1.68% zinc, equal to 2.44% copper equivalent. Contained metal — Indicated: Gold: 415 koz Silver: 8,253 koz Copper: 197.9 Mlb Lead: 67.3 Mlb Zinc: 490.1 Mlb Copper equivalent: 650.6 Mlb Contained metal — Inferred: Gold: 29 koz Silver: 423 koz Copper: 16.4 Mlb Lead: 3.8 Mlb Zinc: 31.8 Mlb Copper equivalent: 46.1 Mlb Mineralisation depth and expansion: Defined from about 60 metres depth to at least 900 metres, open at depth and along strike. Less than 10% of the prospective mineralised horizon has been drill-tested to date, according to the company.

Road, power and water access. The project is located in an established Arizona mining jurisdiction with year-round access and an available mining workforce.

The Tulsequah Chief Mine has been abandoned for over 60 years and has been leaching acid rock drainage into the Tulsequah River, a tributary of the Taku River. The Province of British Columbia is now leading clean-up and reclamation efforts. In September 2024, the B.C. Government, the Taku River Tlingit First Nation, and Teck signed a memorandum of understanding to collaborate on the site's clean-up. Since 2024, on-site work has included improving safe access, repairing infrastructure, stabilising parts of the underground workings using drones for surveys, cleaning up legacy waste like fuel drums, and expanding environmental monitoring. A water treatment plant built by Chieftain Metals was found to be non-functional. A draft remediation plan is targeted for 2026, with a final plan expected by 2028. Remediation completion is anticipated within the next 10 years. The mine's permit was cancelled by the chief inspector of mines on 22 March 2024.

360 (operations), 700 (construction)

The NewRange Copper Nickel Project, formerly known as NorthMet, is located in northeastern Minnesota. The project is a 50:50 joint venture between Teck Resources and PolyMet Mining Corp., which is a subsidiary of Glencore. The joint venture company is named NewRange Copper Nickel LLC. The project is currently in the permitting stage, which has been subject to delays and legal challenges. The Minnesota Department of Natural Resources has suspended proceedings on the project until August 2025 while the company studies potential changes to the project's design.

processing 32,000 tonnes of ore per day (Phase I)

refurbishment of the former LTV Steel Mining Company processing plant; new semi-autogenous grinding (SAG) mill, ball mill, and flotation circuit

new semi-autogenous grinding (SAG) mill, ball mill, flotation circuit

Phase II includes the construction and operation of a hydrometallurgical plant to further process nickel sulfide concentrates.

The project is expected to employ approximately 7,500 people during peak construction and create about 4,000 long-term jobs during its operational life. As of May 2025, there were nearly 1,000 employees on-site. A 2025 technical report outlined the peak mining workforce requirements.

First production was previously targeted for the end of 2028, but this timeline is now under review and likely to be extended. One report from late 2025 suggested first copper exports are expected in early 2029. Phase 1 is projected to produce 260,000 tonnes of copper and 300,000 ounces of gold annually. Phase 2 is expected to increase annual output to 400,000 tonnes of copper and 500,000 ounces of gold.

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 with a combined process capacity of 90 million tonnes per annum. The concentrate will initially be transported by road to Port Qasim, with plans for a pipeline to Gwadar Port in the future. A smelter is not initially planned.

A February 2025 technical report listed planned mining equipment including CAT 789 water trucks, CAT 993 cable reelers, SANDVIK DR412i production drill rigs, and SANDVIK DI650i pre-split drill rigs.

The reconstitution of the Reko Diq project was completed in December 2022. An Environmental and Social Impact Assessment (ESIA) for the project was completed in 2024 and approved by government authorities in early 2025. In early 2026, Barrick announced it was slowing development activity and extending a project review until mid-2027 due to an escalation of security risks in Pakistan and the region. This review will assess the security situation, capital requirements, project financing, scope, and timeline.

As of early 2026, the mine employs 2,923 people, with 96% being Tanzanian nationals and 46% from local communities. The combined workforce for the North Mara and Bulyanhulu mines is 6,185 people.

The North Mara Gold Mine, operated by Twiga Minerals Corporation (a joint venture between Barrick Gold Corporation and the Government of Tanzania), is located in the Tarime district of the Mara Region in Tanzania, approximately 100 kilometres east of Lake Victoria and 20 kilometres south of the Kenyan border. Barrick holds an 84% interest, with economic benefits shared 50:50 with Tanzanian stakeholders. It is a combined open pit and underground operation, comprising the Gokona underground mine and the Nyabirama and Nyabigena open pits. Commercial production began in 2002.

Production at North Mara for 2025 was 249,000 ounces of gold on an 84% basis. As of 31 December 2025, proven mineral reserves for surface operations were 5.4 million tonnes at a grade of 3.22 g/t, containing 0.55 million ounces of gold. For underground operations, proven reserves were 1.8 million tonnes at a grade of 3.18 g/t, containing 0.18 million ounces of gold. Total probable reserves were 36 million tonnes at a grade of 2.14 g/t, containing 2.5 million ounces of gold.

The processing plant has a capacity to process an average of 8,000 tonnes of ore per day, or 2.8 million tonnes per year. It uses a conventional gravity, differential flotation, and carbon-in-leach (CIL) process to produce gold dore.

The underground mining fleet includes Sandvik TH540, TH551i, and TH663i trucks, Sandvik production and development drills, and Caterpillar R2900G LHDs. Open pit operations use Cat 777 trucks.

Expansion projects are underway to extend the mine's life, estimated to end in 2038. These include the new Gena pit, optimisation of the open-cast mine plan, and plans to increase temporary thermal plant capacity to 35.1MW. A 5.2MW Battery Energy Storage System was commissioned in the second quarter of 2025, and a feasibility study for a solar power plant has been completed.

REN Project is an extension of the Goldstrike Mine.

The project is expected to employ 7,500 people at peak construction and create about 4,000 long-term jobs once operational. As of March 2025, 77% of the Reko Diq Mining Company's employees were from the Balochistan province.

First production from the mine is targeted for 2028. Over the life of the mine, the project is projected to produce 13.1 million tonnes of copper and 17.9 million ounces of gold.

The project is a truck-and-shovel open pit operation. It is planned to be constructed in two phases, with processing facilities that will produce a high-quality copper-gold concentrate. The combined processing capacity is expected to be around 80 million tonnes per annum. Phase 1 will have a processing capacity of 45 million tonnes per year, which will double to 90 million tonnes annually in Phase 2.

The project's development is planned in two phases. Phase 1 is expected to commence operations in 2028, with Phase 2 planned to begin by 2034.

The workforce is over 97% Ivorian.

The Tongon Gold Mine is an operating open-pit gold mine located in the Tchologo Region of Côte d'Ivoire, approximately 628 kilometres north of Abidjan. It is owned and operated by Société des Mines de Tongon SA, with the Atlantic Group holding an 89.7% interest and the State of Côte d'Ivoire holding 10%. The mine began production in December 2010 and has had its life extended to at least 2026 through exploration.

Gold production was 260,556 ounces in 2016, 288,680 ounces in 2017, 284,863 ounces in 2020, and approximately 200,000 ounces in 2022. Production for the full year 2024 was below guidance due to lower grades and recoveries.

The processing plant treats both oxide and sulphide ores using a circuit that involves a fourth-stage crushing circuit, milling, a flotation circuit, and a carbon-in-leach (CIL) system for gold recovery.

Mining is conducted using conventional truck and shovel methods, with a fleet that includes 100-tonne dumper trucks and 300-tonne hydraulic excavators. The processing plant equipment includes Sandvik conventional cone crushers, a fourth flotation rougher cell, an upgraded oxygen plant, an 8MW motor on one of the mills, and six new CAT generators.

successful exploration campaigns have repeatedly extended mine life; equipment upgrades to improve throughput and recovery; fourth-stage crushing circuit commissioned; six new CAT generators installed; purchase and installation of a naked crusher CH660; installation of a fourth flotation rougher cell; upgrade to the oxygen plant; 8MW motor installed on one of the mills

The total average number of employees in 2024 was 2,988, consisting of 950 permanent employees and 2,038 contractors.

Production overview - 2025: gold 673000 oz; 2024: gold 686000 oz.

The mine has a metallurgical plant that includes a twin-circuit sulphide and oxide plant with conventional carbon-in-leach (CIL) and gravity recovery.

Exploration is focused on the ARK-KCD corridor, which shows potential to host significant additional orebodies and extend the mine life. A 16MW solar plant with a battery energy storage system has been commissioned to increase the mine's renewable energy use to 85%.

The Kinskuch property, located in the Golden Triangle of British Columbia, was acquired by Dolly Varden Silver Corporation from Hecla Mining Company in May 2025. The acquisition was for $5 million, satisfied by the issuance of 1,351,963 common shares of Dolly Varden to Hecla. Hecla retains a 2% net smelter return royalty, of which Dolly Varden has a 50% buyback right for $5 million. The property is considered underexplored and includes the past-producing Esperanza mine. Historical work by Hecla focused on the "Illy" epithermal system. The acquisition increased Dolly Varden's Kitsault Valley Project area to approximately 77,000 hectares. The property is covered by a five-year Exploration Permit on both Nisga'a and Gitanyow Traditional Lands.

The Connaught property is a silver-gold-lead vein system in the Sixty Mile placer gold camp, western Yukon. Hecla Mining Company acquired the project as part of its acquisition of ATAC Resources Ltd. in 2026. The property consists of 208 mineral claims, 65 km west of Dawson City. Historically, it has been explored as a high-grade silver-lead-zinc-copper-gold vein prospect. Hecla plans to advance exploration.

Approximately 512 people as of 2024

Production overview - 2023: silver 9700000 oz, gold 60900 oz, zinc 51500 t, lead 19600 t; 2021: silver 9200000 oz, gold 46088 oz.

The mine uses an ore concentrating mill with flotation and gravity processes. In 2024, 46% of tailings were reused as backfill.

In January 2025, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project. Hecla is also studying the economic potential of recovering critical minerals from the mine's tailings. Copper became a payable metal for Greens Creek in 2024, creating a new revenue stream.

During its peak construction phase, the Reko Diq Project is expected to employ over 7,500 people, with approximately 4,000 long-term jobs created once the mine is in production.

The Reko Diq Project is a significant undeveloped copper-gold deposit located in the Chagai District of Balochistan, Pakistan. It is operated by the Canadian mining company Barrick Gold Corporation. As of early 2026, the project is under development, however, development activities have been slowed, and a project review has been extended to mid-2027 due to an escalation of security risks in the region. This is expected to impact the previously targeted first production date of late 2028.

The project is expected to produce 200,000 to 250,000 tonnes of copper per year.

The development is expected to occur in two phases, with a combined processing capacity of 90 million tonnes per annum. The initial phase is planned to process approximately 40 to 45 million tonnes of ore annually. The mine will produce a high-quality copper-gold concentrate.

Key equipment suppliers include Metso, Weir, and Komatsu.

The development is expected to occur in two phases.

over 2,200 people

The Porgera Gold Mine, which had been on care and maintenance since April 2020, officially reopened on 22 December 2023, with the first gold pour of the new operation occurring in February 2024. The mine is expected to have a life of 20 years. At full production, the mine is expected to produce an average of 21 tonnes of gold annually.

Production overview - 2019: gold 284000 oz.

The processing of ore at the Porgera Gold Mine involves a comprehensive circuit. The major components include a crushing circuit followed by coarse and fine ore storage. This is followed by a grinding circuit, and then gravity and regrind circuits. The process also includes flotation, pressure oxidation and tailings neutralisation circuits. Leaching and adsorption circuits are utilised, along with an acid wash and stripping elution circuit. The final stages include electrowinning and a gold refinery. The facility also has its own oxygen plant and handles reagent storage and mixing, as well as a cyanide destruction plant.

In the first quarter of 2025, an order was placed with Sandvik Mining and Rock Solutions to supply seven new surface drill rigs to replace an aging fleet. The order includes four Sandvik DR410i rotary blasthole drill rigs and three Leopard™ DI650i down-the-hole drill rigs.

The Porgera mine was placed on care and maintenance in April 2020 after the government of Papua New Guinea did not renew its special mining lease. Following extensive negotiations, a new special mining lease was granted to New Porgera Limited in October 2023, and the mine officially reopened on 22 December 2023. The new ownership structure gives a majority 51% stake to Papua New Guinean stakeholders, including local landowners and the Enga Provincial Government. The remaining 49% is held by Barrick Niugini Limited (BNL), a joint venture between Barrick Gold and Zijin Mining. The economic benefits from the mine are to be shared, with 53% going to the Papua New Guinea stakeholders.

512 (as of 2024)

Production overview - 2025: silver 8700000 oz, gold 59349 oz; 2024: silver 8500000 oz, gold 55275 oz.

The mine has an ore concentrating mill on site. The process involves grinding the ore and then using flotation and gravity processes to produce lead and zinc concentrates, which also contain silver and gold. In 2024, 46% of the tailings were reused as backfill.

An expansion of the tailings facility is expected to provide storage capacity through 2045. In January 2025, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project to test existing mineralised targets and identify new ones. Definition drilling is ongoing to expand mineralisation near resource boundaries.