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225 to 350 people

The Hackett River Project is an exploration-stage asset located in Nunavut, Canada. It is a silver-rich volcanogenic massive sulphide deposit. A 2008 project proposal outlined the potential for a mine with both open-pit and underground developments, and a 2010 preliminary economic assessment considered a 12,000-tonne-per-day operation with a 16-year mine life.

12,000-tonne-per-day operation

conventional grinding and flotation plant on-site to produce zinc, copper, and lead concentrates

conventional truck and shovel for open-pit operations and a conventional grinding and flotation plant

The Bath Property is a component of the larger Back River Gold Project, owned and operated by Sabina Gold & Silver Corp. It is located in the Kitikmeot Region of Nunavut, Canada, and serves as the port facility for the Back River Project. It is not a standalone mine but a property and claim within the larger project.

The Del Property is an exploration project operated by Sabina Gold & Silver Corp. located in the Kitikmeot region of Nunavut, Canada. The geology is characterised by undifferentiated mudstone and greywacke of the Archean Beechey Group. The primary commodity is gold.

The Boulder Property is a gold exploration project located in the Kitikmeot Region of Nunavut, Canada, forming part of the extensive Back River Project. It is an early-stage exploration target with no operational mine.

over 800 people

The Haile Gold Mine is an active operation consisting of both open-pit and underground mining. It is 100% owned and operated by OceanaGold Corporation. The mine began construction in 2015, with commercial production in October 2017.

Production overview - 2024: gold 212000 oz.

conventional flowsheet. The run-of-mine ore is first crushed in a primary jaw crusher, then conveyed to a semi-autogenous grinding (SAG) mill and a ball mill. The process includes flotation, where the concentrate is reground before undergoing cyanide leaching in agitated tanks. A carbon-in-leach (CIL) circuit is used to dissolve gold and silver, which are then adsorbed onto activated carbon. The precious metals are recovered from the loaded carbon by acid washing, stripping, and electrowinning to produce gold-silver doré bars.

12 Cat 777F haul trucks, two front-end loaders, and one hydraulic front shovel

received necessary permits for expansion, including a permit under Section 404 of the Clean Water Act from the U.S. Army Corps of Engineers and a Mine Operating Permit from the S.C. Department of Health and Environmental Control in December 2022. These permits allow for the development of the underground mine and the expansion of the operating footprint for additional waste and tailings storage.

approximately 1,150 people. Of these, over 200 are Inuit.

The Goose Mine is located in the Kitikmeot Region of Nunavut, Canada, approximately 400 kilometres southwest of Cambridge Bay. It is part of the larger Back River Gold District, which encompasses an 80-kilometre belt. The project was acquired by B2Gold Corp. through its acquisition of Sabina Gold & Silver Corp. in April 2023. The mine, which is B2Gold's first operating asset in Canada, achieved its first gold pour on 30 June 2025 and reached commercial production on 2 October 2025. The operation is a combined open-pit and underground mine.

Processing plant design throughput of 4,000 tonnes per day.

Conventional system including crushing, grinding, gravity concentration, agitated leaching, and carbon-in-pulp recovery to produce doré bullion.

Haul trucks with a 51-tonne capacity. Loaders with a 17-tonne capacity. A CAT6015 excavator. Two CATD9 dozers. Five CAT775 trucks. One CAT14M grader. Dual control jumbos for underground drilling. Longhole drill rigs. A supplemental mobile crusher.

potential for expansion to 6,000 tpd; studying the addition of a semi-autogenous grinding (SAG) mill.

approximately 800 jobs over its 18-year life

The New Zealand government granted permit approval for the Waihi North Project in December 2025. This allows for the development and operation of the project, which includes the high-grade Wharekirauponga Underground mine (WUG), the Gladstone Open Pit, an expansion of the current processing plant and water treatment plant, and the construction of a new tailings storage facility. The project is a staged expansion of OceanaGold's existing Waihi mining operations.

Expansion and upgrades to the processing plant to increase throughput capacity, and a water treatment plant.

Expansion of current processing plant and water treatment plant, construction of a new tailings storage facility, increased exploration drill pads, six drill rigs.

Staged expansion of OceanaGold's existing Waihi mining operations, including the Wharekirauponga Underground mine (WUG), Gladstone Open Pit, processing plant and water treatment plant expansion, and a new tailings storage facility.

357 people in 2023

Production overview - 2023: gold 49300 oz.

The processing method at Waihi involves several stages. Ore is first crushed and then ground in a semi-autogenous grinding (SAG) mill with water and steel balls to form a slurry. Lime and a weak sodium cyanide solution are added to the slurry in leach tanks to dissolve the gold and silver. The slurry then passes through adsorption tanks containing carbon granules, which attract the dissolved gold and silver. The metals are then stripped from the carbon, and through a process of electrowinning, a gold and silver-bearing sludge is produced. This sludge is dried, mixed with fluxes, and smelted in a furnace at 1200 degrees Celsius to form doré bullion bars. These bars, which are approximately 99% pure gold and silver, are then sent to a refinery in Perth, Australia, for final separation.

OceanaGold has received permit approval for the Waihi North Project, a significant expansion of the Waihi Operation. This project includes the development of the new high-grade Wharekirauponga Underground (WUG) mine, located about 10 kilometres north of the existing operations. The approval also allows for the expansion of the current processing and water treatment facilities and the construction of a new tailings storage facility. The development of the Waihi North Project is expected to extend the mine life of the Waihi Operation to at least 2038. The existing Martha Underground (MUG) is expected to be the primary source of ore until 2033, with the new Wharekirauponga mine transitioning into the main production source thereafter. First ore from the Wharekirauponga Underground is anticipated in 2032. The company has an early-works capital budget of $40 to $45 million for 2025 to progress design and construction activities for the Waihi North Project. A pre-feasibility study for the Waihi District, which includes both the existing operations and the Wharekirauponga underground mine, projects a combined production of 1.6 million ounces of payable gold over a 15-year mine life. As of February 2025, an initial mineral reserve of 4.1 million tonnes at a grade of 9.2 g/t for 1.21 million ounces of gold has been declared for the Wharekirauponga deposit.

around 650 OceanaGold employees and over 200 contractors

Production overview - 2023: gold 137018 oz.

The processing method involves crushing, grinding, flotation, fine grinding, pressure oxidation, carbon-in-leach, elution, electrowinning, and smelting.

OceanaGold is proceeding with the Macraes Phase 4 project, which involves expanding current open pit operations, revisiting previously mined areas, and processing low-grade stockpiled ore. This includes expansions of the Innes Mills and Coronation Pits, and returning to mining at the Golden Bar Pit. A key part of this project is the development of a new tailings storage facility in the existing Frasers Open Pit. The project aims to maintain an approximate annual output of 130,000 ounces.

1,788 (in 2017)

The Didipio mine is located in Barangay Didipio, Kasibu, in the provinces of Nueva Vizcaya and Quirino on the island of Luzon. It is operated by OceanaGold (Philippines), Inc., a subsidiary of OceanaGold Corporation. Following an Initial Public Offering (IPO) on the Philippine Stock Exchange on 13 May 2024, OceanaGold Corporation holds an 80% indirect interest in the mine. Large-scale open-pit mining was completed in May 2017. Current mining activities are solely from underground operations, which began in 2015, and are supplemented by the processing of surface stockpiles. The underground mining method is longhole open stoping with cemented paste backfill. The operation is governed by a Financial or Technical Assistance Agreement (FTAA) with the Philippine government, which was renewed in 2021 for a 25-year term.

Production overview - 2023: gold 138500 oz, copper 14200 t; 2022: gold 113200 oz, copper 14400 t.

The processing plant uses a conventional SAG mill-ball mill grinding circuit, froth flotation, and a gravity gold recovery circuit. The combined processing rate of underground ore and surface stockpiles is approximately 4.0 million tonnes per annum (Mtpa).

A pre-feasibility study is in progress to identify requirements to support an optimised underground mining production rate of approximately 2.5 Mtpa and to evaluate process plant augmentation needs. This study is expected to be completed in 2026. The company is also conducting exploration to expand resources, including at the Napartan prospect located about nine kilometres from the Didipio mine.

Unca Creek is an exploration project in the Northern Territory, Australia, operated by KGL Resources (100% ownership) under exploration licence EL 28082. Located 380 km NE of Alice Springs, it surrounds the Jervois Copper Project. The 72.7 sq km tenement, acquired in March 2017, focuses on copper, silver, and gold exploration using advanced 3D modelling and seismic surveys.

320 (construction), 280 (peak production)

KGL Resources is advancing toward a Final Investment Decision in 2025, with the goal of bringing Jervois into production in 2027. The project has all necessary approvals to commence construction. The development plan includes two open pits (Reward and Bellbird) and four underground mining areas (Rockface, Reward, Marshall, and Bellbird).

Production overview - 2025: copper 30000 t, silver 1106000 koz, gold 8900 koz.

The project will use a flotation plant to process up to 2 million tonnes of ore per annum, producing a copper concentrate with by-products. The concentrate will have a grade of 27% copper.

KGL Resources is advancing toward a Final Investment Decision in 2025, with the goal of bringing Jervois into production in 2027. The project has all necessary approvals to commence construction. The construction schedule is 18 months, followed by a six-month plant commissioning and ramp-up period. The development plan includes two open pits (Reward and Bellbird) and four underground mining areas (Rockface, Reward, Marshall, and Bellbird). A February 2025 Feasibility Study Update confirmed the project is technically robust and financially viable.

A multi-mineral orebody producing copper, uranium, gold, and silver.

over 600 on site (Macmahon workforce)

Production overview - 2024: gold 230000 oz, silver 1500000 oz; 2023: gold 175000 oz, silver 1500000 oz.

The ore is processed using a carbon-in-leach (CIL) system. The processing plant has a capacity of up to 6-7 million tonnes of ore per year. The process includes crushing, grinding, leaching, and adsorption, followed by smelting to produce dore bullion. In 2024, a new filtration plant was completed as part of the Martabe Phase 2 project, and the mine is transitioning from wet to dry tailings management.

Macmahon Holdings' contract as the mining contractor was extended for seven years from April 2023. In January 2024, targeted exploration and development work commenced. In early 2026, the Indonesian government announced its intention to revoke the mine's permit, leading to an operational halt in March 2026, pending review.

PT Freeport Indonesia commenced long-term mine development activities for the Kucing Liar deposit in October 2021, with development expected to continue over an approximate 10-year timeframe. Initial production is expected to commence and ramp up gradually around 2030, with full operating rates projected to yield approximately 750 million pounds of copper and 735,000 ounces of gold annually. The mine is being planned as a 90,000 metric tonnes per day block cave mine.

Initial production is expected to commence and ramp up gradually around 2030. At full operating rates, annual production is expected to be approximately 750 million pounds of copper and 735,000 ounces of gold. The mine is being planned as a 90,000 metric tonnes per day block cave mine.

PT Freeport Indonesia commenced long-term mine development activities for the Kucing Liar deposit in October 2021. Development activities are expected to continue over an approximate 10-year timeframe. Initial production is expected to commence and ramp up gradually around 2030.

Batu Hijau is a significant producer of copper and gold. In 2024, the mine's production increased substantially due to the processing of high-grade ore from Phase 7 of the mining plan.

Production overview - 2024: copper 395 Mlbs, gold 802749 oz; 2022: copper 463.9 Mlbs, gold 730700 oz, silver 2170400 oz.

Crushing, grinding, and flotation to produce a copper-gold concentrate

P&H 4100 electric mining shovels, Caterpillar 793C haul trucks with a 220-tonne capacity

Expansion of the processing plant is underway to double its input capacity to accommodate ore from Phase 8 and the future Elang mine.

The Wonawinta Silver Project, previously placed on active care and maintenance in February 2024, is restarting operations with Macmahon Holdings providing open-pit mining services. The initial phase will focus on processing existing gold and silver-bearing stockpiles using its 850,000 to 1,000,000 tonnes per annum CIL processing plant.

Limited silver production was undertaken by Manuka in 2022. Between 2012 and 2013, the project produced approximately 3 million ounces of silver. A 10-year mine plan targets the production of 19 million ounces of silver from the Wonawinta open pits and 46,000 ounces of gold from the Mt Boppy open pit, which will be processed at Wonawinta.

The site has a fully constructed carbon-in-leach (CIL) processing plant with a capacity of 850,000 to 1,000,000 tonnes per annum. The plant will undergo refurbishment and upgrades, including the potential addition of a deslime circuit.

Macmahon Holdings will provide open-pit mining services, including drill and blast, and load and haul operations.

Manuka Resources Limited has entered into a Letter of Intent with Macmahon Holdings Limited for the restart of mining operations. A formal Mining Services Agreement is expected to be finalised in April 2026. Mining activities are scheduled to recommence in May 2026, with Macmahon's services beginning in June 2026. The initial phase of the restart will focus on processing existing gold and silver-bearing stockpiles. The mine was previously placed on active care and maintenance in February 2024 after processing gold ore from the Mt Boppy gold mine.

The Ulysses Gold Mine, previously an open pit operation, has transitioned to an underground mine. Development of the high-grade underground mine commenced in the March 2023 quarter, with a portal established in March 2024. First development ore was processed in August 2024, and first production ore delivered to the Leonora mill before the end of the December 2024 quarter. Stoping commenced late in the December 2024 quarter.

Production overview - 2025: gold 10500 oz.

Development of the high-grade underground mine commenced in the March 2023 quarter. The final works on the Ulysses West open pit were completed to enable the establishment of a portal in March 2024 for the new underground operation.

The total average workforce in 2024 was 1,010 people, comprising 208 permanent employees and 802 contractors.

The Tropicana Gold Mine is an operating gold mine located 330 kilometres east-northeast of Kalgoorlie-Boulder, on the western edge of Western Australia's Great Victoria Desert. The operation is a joint venture managed by AngloGold Ashanti, which holds a 70% interest, and Regis Resources, which holds the remaining 30%. The operation combines large-scale open-pit mining with a growing underground component, with underground mining commencing in September 2020 beneath the Boston Shaker pit.

In the 2024 calendar year, the mine produced 447,342 ounces of gold. Production for the 2023 calendar year was 310,000 ounces. The mine poured its 5 millionth ounce in the fourth quarter of 2024.

Ore is processed at a plant with a throughput capacity of around 9.4 million tonnes per annum using a conventional carbon-in-leach (CIL) circuit. The crushing circuit includes a primary gyratory crusher, secondary cone crushers, and tertiary high-pressure grinding rolls, which feed a grinding circuit with a 14MW and a 6MW ball mill operating in parallel.

The open pit mining fleet includes CAT 789 and 793 haul trucks, 600-tonne and 400-tonne excavators, and SKF15 drills. Mining activities are carried out by contractor Macmahon Holdings.

A cutback of the Havana pit is in progress to extend open-pit operations. The development of a third underground mine at Havana was approved in 2024, with this new section expected to be a primary source of ore from 2027 through 2029. Exploration continues to assess the potential for further underground extensions and satellite open-pit deposits.

Production overview - 2022: gold 349000 oz, copper 17000 t, silver 208000 oz; 2021: gold 408000 oz, copper 14000 t.

The processing facility has a nominal capacity of 20 million tonnes per annum, comprising two 10Mtpa trains. It produces gold doré, copper-gold concentrate, and gold middlings high-grade concentrate. The process includes a carbon-in-leach (CIL) plant for gold recovery and a flotation plant for copper-gold concentrates.

Greatland Gold acquired the Telfer mine from Newmont in December 2024. Following the acquisition, Greatland resumed dual-train processing operations. The company has an initial 15-month mine plan targeting 374,000 ounces of gold and 13,000 tonnes of copper production. There is a significant focus on exploration to extend the mine's life, with a record 240,000m drilling program planned for FY26. The nearby Havieron project is being developed to be integrated with the Telfer operations, with Havieron ore planned to be processed at the Telfer plant. In November 2022, a A$214 million expansion of the West Dome Stage 8 cutback was approved to extend operations.

200

The mine was placed on care and maintenance after the previous owner, Navarre Minerals, went into voluntary administration in mid-2023. In March 2026, Macmahon Holdings announced it had signed a Letter of Intent with Wolfram Limited to restart operations. Early works, including the repair and maintenance of the mine access road, have commenced. The restart of surface mining is expected to begin in April 2026, with underground mining to follow shortly after. Commercial production is anticipated to return by mid-2026.

Production overview - 2022: gold 45768 oz, silver 317198 oz, copper 1838 t.

The site has a 960ktpa processing plant. The processing method involves crushing, grinding, and bulk sulphide flotation to produce a polymetallic concentrate. There is also a gravity circuit to produce gold doré.

Macmahon Holdings has been engaged as the mining contractor for the restart of the Mount Carlton mine. The scope of the contract includes surface and underground mining, as well as civil infrastructure services. The contract is anticipated to have an initial term of 33 months and is valued at approximately $250 million. Wolfram has also engaged DRA Global to refurbish and operate the processing plant and has secured a seven-year offtake agreement with Glencore for 100 per cent of the site's output. An investment of $15.7 million is planned for commissioning by June 2026.

Production overview - 2023: gold 13534 oz.

The processing plant is a 4.7 million tonne per annum carbon-in-leach (CIL) plant, which commenced operations in 2022. The plant processes ore from both the open-pit and underground mines at King of the Hills, as well as from the Darlot satellite mine. Commercial production was declared in December 2022.

Initial open pit fleet includes one 360-tonne EX3600 Hitachi excavator and four 789C Caterpillar trucks. Full open pit fleet planned for three Hitachi excavators and 16 Caterpillar 789 trucks. Underground fleet includes one jumbo and two boggers. Processing plant has a 36-foot diameter SAG mill. Site powered by a hybrid gas and solar power station with battery energy storage system.

In 2024, an $80 million investment was announced to upgrade and expand the processing facility following the merger of Red 5 and Silver Lake Resources to form Vault Minerals. Studies were underway in early 2023 to evaluate an expansion of the process plant and open pit mine.

Gwalia is Australia's deepest underground gold mine and the deepest trucking mine in the world, with a depth of 1,600 metres in 2023.

Production overview - 2024: gold 29900 oz; 2023: gold 138050 oz.

Ore is treated at the Leonora processing plant, which has a capacity of 1.4 million tonnes per annum. The process involves a conventional carbon-in-pulp circuit.

There are plans to extend the mine's depth to 2,300 metres by 2031. Genesis is focused on a "quality over quantity" approach at Gwalia, using the high-grade "Heart of Gold" stopes.