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Page 19 of 30 (705 total)
Mimosa Operation

Midlands Province, Zimbabwe · Underground

Operating
PlatinumPalladiumRhodiumRutileIron OreGold+2
End year
2034
Overview
The Mimosa Operation is a shallow, mechanised underground mine located in Zimbabwe, situated on the Wedza Geological Complex of the Zimbabwean Great Dyke, 32 kilometres west of Zvishavane. It is a 50/50 joint venture between Sibanye-Stillwater and Impala Platinum.
Production
Annual production rate is approximately 2.9 million tonnes of ore. For the six months ending 31 December 2025, the mine produced 123,000 ounces of 6E concentrate. In the 2023 financial year, production was 245,000 ounces of 6E in concentrate. As of 31 December 2024, the 4E PGM production figure was 122,639 ounces.
Processing
on-site concentrator plant involving crushing, screening, milling, flotation, thickening, and filtration, with an operational capacity of approximately 233,000 tonnes per month.
Equipment
ore bunker, workshops, pump stations, network of strike, dip, and main conveyors, fleet of trackless mining machinery
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Marikana Operation

North West province, South Africa · Underground

Operating
PlatinumPalladiumRhodiumGoldNickelCopper+1
Opened
1987-01-01
End year
2069
Workforce
19,454 employees and contractors as of 31 December 2024
Overview
The Marikana Operation, which includes Western Platinum Limited and Eastern Platinum Limited, is an active mining complex located in the Marikana district, 40 kilometres east of Rustenburg in the North West province of South Africa. The primary commodities produced are Platinum Group Metals (PGMs), including platinum, palladium, rhodium, and gold (referred to as 4E PGM), as well as iridium, ruthenium, nickel, copper, and chrome. The mine is a large, established, shallow to moderate depth PGM complex.
Production
679,245 ounces of 4E PGM for the year ending 31 December 2024; combined fresh ore milling capacity of approximately 600,000 tonnes per month.
Processing
Ore mined at Marikana is processed through four of the eight available concentrators, which have a combined fresh ore milling capacity of approximately 600,000 tonnes per month. The resulting concentrate is sent to the on-site smelter, which has five furnaces, to produce a sulphide-rich matte. This matte undergoes further processing at the Base Metal Refinery (BMR) where nickel and copper are extracted. The final PGM-rich product is then sent to the Precious Metal Refinery (PMR) in Brakpan for final treatment to produce refined precious metals.
Equipment
multiple incline and vertical shaft systems, four concentrators, on-site smelter with five furnaces, Base Metal Refinery (BMR), Precious Metal Refinery (PMR), workshops, office blocks, a laboratory, equipment stores, accommodation, and water treatment plants
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Kroondal Operation

North West Province, South Africa · Underground

Operating
PlatinumPalladiumRhodiumGoldNickelCopper
End year
2029
Workforce
6,972 employees and contractors as of 31 December 2024
Overview
Kroondal Operation is a shallow, low-cost, mechanised underground mine. It is located on the Western Limb of the Bushveld Complex, 12 kilometres east of Rustenburg in the North West Province of South Africa, approximately 120 kilometres north-west of Johannesburg.
Production
In 2024, the Kroondal Operation produced 280,556 ounces of 4E PGMs. The K1 plant has a design capacity of 290,000 tonnes per month, and the K2 plant has a design capacity of 300,000 tonnes per month.
Processing
dense media separation at two concentrator plants (K1 and K2) to remove waste, followed by flotation
Equipment
mechanised drilling, loading, and hauling equipment; 20 chairlifts, 210 conveyors, 178 mini-subs, 17 substations, 19 ventilation fans; 133 LHDs (Load-Haul-Dump vehicles), 29 roof-bolters, and 28 drill rigs
Expansion
A transaction to assume full ownership was expected to extend the overall life of the Kroondal operation to 2029.
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Marathon

Ontario, Canada · Open Pit

Feasibility
PlatinumPalladiumCopper
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Altar

San Juan, Argentina · Open Pit

Under Development
CopperGoldSilver
End year
2073
Mine life
48 years
Overview
An exploration-stage copper-gold porphyry deposit in San Juan province, Argentina. The project consists of a cluster of porphyry centres with six known mineralised zones. An updated Mineral Resource estimate, effective 31 December 2024, reported Measured and Indicated Mineral Resources of 2.40 billion tonnes with grades of 0.42% copper, 0.07 g/t gold, and 1.22 g/t silver.
Processing
A Preliminary Economic Assessment for the project, released in October 2025, outlines a potential 60,000 tonnes per day concentrator.
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Columbus Metallurgical Complex

Montana, United States · Processing Facility

Operating
PlatinumPalladiumRhodiumNickelCopperCobalt
Overview
Smelting and refining facility processing PGMs (platinum, palladium, rhodium), nickel, copper, and cobalt. It recycles PGMs from catalytic converters and processes concentrates from Stillwater and East Boulder mines.
Production
In 2024, 425,842 2E PGM ounces from mine production and 316,470 3E PGM ounces from recycled catalytic converters.
Processing
Utilises sulphuric acid solution to dissolve base metals from PGM-bearing converter matte, producing a PGM-rich filter cake for third-party refining. Recycled materials are crushed, sampled, and blended with concentrates.
Equipment
Smelter with concentrate drying plant, two electric furnaces, two top-blown rotary converters, matte granulator, gas handling and solution regeneration systems (max design capacity 20,000 lbs/hour). Base metals refinery (capacity 1,300 lbs/hour of matte). Analytical laboratory.
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Stillwater Mine

Montana, United States · Underground

Operating
PalladiumPlatinumGoldSilverCopperNickel
Opened
1986-01-01
End year
2049
Workforce
As of 31 December 2024, the US PGM operations, which include the Stillwater and East Boulder mines, had a combined workforce of 911 employees and contractors. A September 2024 announcement indicated a significant restructuring of the US PGM operations, including a reduction of approximately 700 employees.
Overview
The Stillwater Mine is an underground mining operation located near the town of Nye in Stillwater County, Montana, in the United States. It targets the J-M Reef, a significant source of platinum group metals (PGMs) in the United States.
Production
For the year 2023, the Stillwater mine was expected to produce between 260-300 thousand ounces of 2E PGM (platinum and palladium) in concentrate. The production target for the entire US PGM operations as of 31 December 2024, is 425,842 ounces of 2E PGM.
Processing
Ore processing occurs on-site at a concentrator plant. The process involves milling and treating the ore to produce a concentrate. This concentrate is then transported to the company's Columbus Metallurgical Complex in Columbus, Montana, for smelting and refining into a PGM-rich filter cake.
Equipment
underground mining fleet, concentrator plant, new concentrate handling system, new processing facility, workshops, warehouse, change facilities, headframe, hoist house, sand and paste plants, water treatment and storage facilities, offices
Expansion
new concentrate handling system added in 2021 and the balance of a new processing facility commissioned in 2023. Stillwater West section temporarily suspended in 2024 due to restructuring. September 2024 announcement indicated a significant restructuring of the US PGM operations, including a reduction of approximately 700 employees.
Companies & ownership
  • Sibanye-Stillwater Limited
    NYSE:SBSW
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Gosselin Zone

Ontario, Canada · Open Pit

Feasibility
GoldCopper
Workforce
over 600 full-time workers
Overview
The Gosselin Zone is a gold deposit located in the Chester and Yeo Townships, District of Sudbury, in northeastern Ontario, Canada. It is situated approximately 25 kilometres southwest of Gogama, 125 kilometres southwest of Timmins, and 175 kilometres northwest of Sudbury. It is part of the Côté Gold Project, a joint venture between IAMGOLD Corporation (70%) and Sumitomo Metal Mining Co., Ltd. (30%).
Processing
Ore from the Gosselin Zone is expected to be processed using the same facilities as the Côté Gold Mine. The processing plant at Côté Gold has a nameplate capacity of 36,000 tonnes per day. The plant is equipped with Canada's largest high-pressure grinding roller (HPGR) and the market's largest vertical grinding mills. The processes are described as automated and modern.
Equipment
The mining fleet at Côté Gold is technologically advanced, featuring autonomous haul trucks and drills. The fleet includes 23 CAT 793F autonomous haul trucks and six Epiroc Pit Viper autonomous drills.
Expansion
The inclusion of the Gosselin Zone is anticipated to enhance the long-term value and district-scale potential of the Côté Gold Project.
Companies & ownership
  • IAMGOLD Corporation
    TSX:IMG · NYSE:IAG
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Pontois Project

Quebec, Canada · Open Pit

Under Development
LithiumGoldCopperZincLeadSilver
Overview
The Pontois Project is a mineral exploration property located in the James Bay Region of Quebec, Canada. It consists of 31 contiguous claims covering an area of 1,587.2 hectares. The project is situated approximately 10.5 kilometres directly west of the company's main Corvette Property and is considered to be on the geological trend to the west of it. Patriot Battery Metals acquired a 100% interest in the Pontois West Property in September 2022. The project is considered a non-core exploration asset by the company. The property is prospective for lithium pegmatite, as well as orogenic gold and volcanogenic massive sulphides.
Companies & ownership
  • PMET Resources Inc.
    ASX:PMT · TSX:PMET · OTC:PMETF
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Toquepala

Tacna Department, Peru · Open Pit

Operating
CopperMolybdenumSilverRhodiumGoldZinc
Opened
1960-01-01
Workforce
estimated to have a peak of 949 employees
Overview
The Toquepala mine is a large, open-pit porphyry copper mine located in the Tacna Province of the Tacna Department in southern Peru. The open pit is substantial, measuring 2.5 kilometres across and over 700 metres deep.
Production
In 2009, produced approximately 127,000 tonnes of copper in sulphide concentrates and 38,000 tonnes of copper cathodes. Total processing capacity is over 100,000 tonnes of ore per day.
Processing
Two concentrators and a solvent extraction/electrowinning (SX/EW) facility. Processing involves crushing and grinding, followed by flotation for concentrates. The SX/EW plant processes low-grade ore.
Equipment
conventional truck and shovel method, significant number of haul trucks and loaders, Cat 798 AC electric drive trucks
Expansion
A second concentrator was commissioned in 2018, increasing total processing capacity. An expansion in the early 2000s extended the life of the mine.
Companies & ownership
  • Southern Copper Corporation
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Tía María

Arequipa region, Peru · Open Pit

Under Development
Copper
End year
2047
Mine life
20 years
Workforce
During construction, 3,500-9,000 jobs; once operational, 764 direct jobs and 5,900 indirect jobs.
Overview
The project will utilise state-of-the-art SX-EW (solvent extraction and electrowinning) technology. It is described as a greenfield project.
Production
120,000 tonnes of copper cathodes annually.
Processing
SX-EW (solvent extraction and electrowinning) technology to produce copper cathodes.
Equipment
auxiliary facilities, a treatment plant, access roads, and operational platforms. The site is surrounded by 59 kilometres of live wire fencing.
Companies & ownership
  • Southern Copper Corporation
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Michiquillay

Cajamarca region, Peru · Open Pit

Under Development
CopperMolybdenumGoldSilver
Opened
2032-01-01
End year
2057
Mine life
25 years
Workforce
Expected to generate significant employment for local communities; currently sources unskilled labour from Michiquillay and La Encañada for exploration work.
Overview
Michiquillay is a world-class mining project located in the Cajamarca region of Peru, fully owned and operated by Southern Copper Corporation. It is an open-pit mine, currently under development, with primary commodities of copper, molybdenum, gold, and silver.
Production
Anticipated annual production of 225,000 tonnes of copper. Inferred mineral resources are estimated at 2,288 million tonnes with a copper grade of 0.43%.
Processing
conventional copper-moly concentrator
Companies & ownership
  • Southern Copper Corporation
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Los Chancas

Apurímac region, Peru · Open Pit

Under Development
CopperMolybdenum
Overview
Los Chancas is a greenfield copper and molybdenum porphyry deposit project located in the Apurímac region of Peru. The project is currently in the development and environmental assessment phase. Its operating status has been impacted by the presence of illegal miners, and Southern Copper Corporation is working with Peruvian authorities to resolve this issue before fully advancing the project.
Production
expected to produce 130,000 tonnes of copper and 7,500 tonnes of molybdenum annually. Current mineral resource estimates indicate 98 million tonnes of oxides with a copper content of 0.45% and 52 million tonnes of sulphides with a copper content of 0.59%.
Processing
combined operation, utilising a concentrator for sulphide ores and solvent extraction and electrowinning (SX-EW) processes for oxide ores.
Companies & ownership
  • Southern Copper Corporation
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Sierra de Lobos

Guanajuato, Mexico · Underground

Under Development
CopperSilverGold
Companies & ownership
  • Southern Copper Corporation
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Santa Eulalia

Chihuahua, Mexico · Underground

Care And Maintenance
ZincLeadCopperSilver
Opened
1870-01-01
Overview
The Santa Eulalia mine is located in the central part of the state of Chihuahua, Mexico, approximately 26 kilometres east of the city of Chihuahua. The operation consists of two main underground mines: the Buena Tierra and the San Antonio.
Production
capacity of 1,450 to 1,500 tons of ore per day
Processing
flotation plant with a capacity of 1,450 to 1,500 tons of ore per day, which produces lead and zinc concentrates.
Expansion
A new pumping system was installed in late 2023 to address water levels.
Companies & ownership
  • Southern Copper Corporation
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Santa Bárbara

Chihuahua, Mexico · Underground

Operating
CopperZincSilverLead
Companies & ownership
  • Southern Copper Corporation
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San Martin

Zacatecas State, Mexico · Cut And Fill

Operating
ZincCopperLeadSilver
Opened
1950-01-01
End year
2050
Mine life
32 years
Workforce
843 employees and 3,191 unionized workers
Overview
Underground mining complex located in the Sombrerete municipality, Zacatecas State, Mexico. Operated by Industrial Minera México, S.A. de C.V. (IMMSA), a subsidiary of Southern Copper Corporation.
Production
Estimated 5,837 tons of zinc and 1,335 tons of copper in 2019; 3,600 tonnes of copper in 2020.
Processing
conventional flotation with two concentrator plants (2,400 tpd and 4,400 tpd capacity) producing separate zinc, copper, and lead concentrates.
Expansion
major renovation of the facilities at a cost of approximately $90.5 million
Companies & ownership
  • Southern Copper Corporation
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La Caridad

Sonora, Mexico · Open Pit

Operating
CopperMolybdenumGoldSilver
Opened
1979-01-01
Workforce
2022: 1,163 direct personnel, 861 contractors. 2000: ~3,000 workers.
Overview
Integrated mining-metallurgical operation, porphyry copper type deposit, located in Nacozari de García Municipality, Sonora, Mexico.
Production
Daily ore processing capacity of 94,500 metric tons. Smelter capacity of 1,000,000 tonnes/year concentrate feed. 2020 production: 110,000 tonnes contained copper (concentrate), 26,000 tonnes copper cathodes (SX-EW).
Processing
Conventional truck and shovel mining, crushing, grinding, froth flotation, smelting, refining, solvent extraction and electrowinning (SX-EW)
Equipment
Nordberg MP800 cone crushers, copper-molybdenum concentrator, smelter, copper refinery, precious metals refinery, rod plant, SX-EW plant, lime plant, sulfuric acid plants
Expansion
Metso contracted to supply Nordberg MP800 cone crushers to increase processing capacity in 2025
Companies & ownership
  • Southern Copper Corporation
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El Pilar

Sonora, Mexico · Open Pit

Under Development
Copper
Mine life
13 years
Overview
El Pilar is a copper project operated by Southern Copper Corporation. It is located in Sonora, Mexico, approximately 45 kilometres from the company's Buenavista mine. The project is a greenfield development and is not yet in operation, with on-site environmental and development activities underway.
Production
anticipated annual production capacity is 36,000 tonnes of copper cathodes; average annual production of approximately 60 million pounds of copper
Processing
solvent extraction and electrowinning (SX-EW) technology, heap leach facility
Equipment
primary crushing plant capable of delivering 17 million tonnes of ore per year to the heap leach facility
Companies & ownership
  • Southern Copper Corporation
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El Arco

Baja California Sur, Mexico · Open Pit

Under Development
CopperGoldMolybdenumSilver
Mine life
35 years
Workforce
47 people (technical manpower)
Overview
El Arco is a development project located in the central part of the Baja California peninsula, Mexico. The El Arco deposit is a world-class copper deposit with sulphide ore reserves of over 1,230 million tonnes with an average ore grade of 0.40% and 141 million tonnes of leach material with an average ore grade of 0.27%.
Production
Annual production is expected to be 190,000 tonnes of copper and 105,000 ounces of gold.
Processing
combined concentrator and solvent extraction-electrowinning (SX-EW) operations. The concentrator is expected to have a capacity of 120,000 tonnes per day, with the SX-EW operations producing 28,000 tonnes per year.
Companies & ownership
  • Southern Copper Corporation
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Charcas

San Luis Potosí, Mexico · Underground

Operating
ZincLeadCopperSilverGold
Workforce
1,000 workers
Overview
The Charcas mining district is one of Mexico's oldest, with mining activity dating back to 1584. The operation is an active underground mine complex comprising three individual mines: San Bartolo, Rey-Reina, and La Aurora. The Charcas mine is considered Mexico's largest producer of zinc.
Processing
crushing, flotation plant
Equipment
elevators (malacates/winches), automated capsule-like device (La Bala)
Companies & ownership
  • Southern Copper Corporation
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Chalchihuites

Zacatecas, Mexico · Underground

Under Development
SilverZincCopperLead
Overview
The Chalchihuites project is an exploration-stage asset owned by Southern Copper Corporation. It is not an active mining operation. It is a skarn-type or contact deposit containing a complex mixture of oxides and sulphides. The principal commodities identified at Chalchihuites are silver, zinc, copper, and lead.
Processing
Metallurgical testing confirmed good recoveries for zinc, copper, lead, and silver in sulphide flotation, but issues remain with separating lead from the copper concentrate. Preliminary testing suggests a leaching-precipitating-flotation recovery process. Access infrastructure is being constructed for pilot plant metallurgical testing.
Companies & ownership
  • Southern Copper Corporation
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Buenavista-Zinc

Sonora, Mexico · Open Pit

Operating
ZincCopperSilver
End year
2065
Workforce
more than 2,000 jobs on the operating front
Overview
The Buenavista-Zinc project, part of the larger Buenavista ore body and open-pit copper mine in Cananea, Sonora, Mexico, involves a new concentrator for zinc and copper production.
Production
production capacity of 100,000 tonnes of zinc and 20,000 tonnes of copper per year. For 2024, production is forecast to be 54,500 tonnes of zinc and 11,900 tonnes of copper. The average annual production over the subsequent five years is expected to be 90,200 tonnes of zinc and 20,700 tonnes of copper. The new facility will double Southern Copper's overall zinc production capacity.
Processing
new concentrator plant built within the existing Buenavista facility
Expansion
construction of a new concentrator which began ramping up in the first quarter of 2024 and is now reportedly operating at full capacity
Companies & ownership
  • Southern Copper Corporation
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Buenavista

Sonora, Mexico · Open Pit

Operating
CopperMolybdenumZincSilver
Opened
1899-01-01
End year
2065
Workforce
Over 2,000 people for the Buenavista Zinc project expansion. Historical workforce figures include over 14,000 in 2010 and over 5,000 in 2006.
Overview
The Buenavista mine, also known as Buenavista del Cobre and historically as the Cananea copper mine, is a large, active open-pit mining operation located in Cananea, Sonora, Mexico, approximately 40 kilometres south of the United States-Mexico border.
Production
In 2025, 913.8 million pounds of copper. In 2023, estimated 427.55 thousand tonnes of copper. In 2019, 337,960 tonnes of copper in concentrate, 100,113 tonnes of cathode, 5.75 million ounces of silver, and 13.48 million pounds of molybdenum. New Buenavista Zinc concentrator expected to produce 100,000 tonnes of zinc and 20,000 tonnes of additional copper annually.
Processing
Ore processing is conducted through a combination of flotation and solvent extraction-electrowinning (SX-EW). The facility includes two copper concentrators (combined milling capacity of 182,000 tonnes per day), a new zinc concentrator, two molybdenum plants, three SX-EW plants, and in-pit crushing and conveying systems (Quebalix I, II, III, and IV).
Equipment
Conventional truck and shovel methods. Fleet includes CAT 797F, Komatsu 980-E (360-tonne), Komatsu 960E (327-tonne), Komatsu 930E (275-tonne), Komatsu 830E (210-tonne) haul trucks; P&H 2800 XPA (28 m3), P&H 4100 XPC (57 m3) electric rope shovels; and 14 production drills including CAT 6380 and PIT VIPER 351 models.
Expansion
Buenavista Zinc project expansion, including a new zinc concentrator, expected to produce 100,000 tonnes of zinc and 20,000 tonnes of additional copper annually.
Companies & ownership
  • Southern Copper Corporation
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Page 19 of 30 (705 total)