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50-66% of workforce are local Papuans

The Gag Island mine, officially operated by PT Gag Nikel, a wholly-owned subsidiary of PT Aneka Tambang Tbk (Antam), is located on Gag Island in the Raja Ampat Regency, West Papua, Indonesia. It is an open-cast operation targeting nickel laterite deposits.

Q1 2019 production: 414,000 wmt; 2020 target: up to 3 million tons; 56 million wmt nickel reserves.

No full-scale processing plant on Gag Island. Nickel ore is mined and shipped for processing at smelters elsewhere, such as the Weda Bay industrial park on Halmahera Island.

Stone crusher (25 tph), Caterpillar 330GC excavators, Volvo A40G articulated dump trucks, Cat D 85-E bulldozers, PC 200 hydraulic excavators, Mitsubishi dump trucks, wheel loaders

The Feronikel Haltim Project, also known as the Halmahera Timur Ferronickel Plant Development Project (P3FH), is a ferronickel smelter located in East Halmahera, North Maluku, Indonesia. The plant is designed with a production capacity of 13,500 tonnes of nickel contained in ferronickel (TNi) per year for its first line. This facility is intended to supplement the output from ANTAM's existing ferronickel plant in Kolaka, Southeast Sulawesi, which has a capacity of 27,000 TNi. Once fully operational, the Feronikel Haltim Project will increase ANTAM's total installed ferronickel production capacity to 40,500 TNi.

13,500 tonnes of nickel contained in ferronickel (TNi) per year for its first line

pyrometallurgical process

Rotary Dryer with a capacity of 170 tonnes per hour, a Rotary Kiln with a capacity of 165 tonnes per hour, and an Electric Smelting Furnace with a capacity of 60 MW. Electricity supplied by PT Perusahaan Listrik Negara (PLN) through a Diesel and Gas Power Plant (PLTDG) with a total capacity of 75 MW.

The Pomalaa nickel mine, officially known as the Unit Bisnis Pertambangan Nikel Kolaka (Kolaka Nickel Mining Business Unit), is an active, open-cast mining operation. It is located in the sub-district of Pomalaa, Kolaka Regency, in the province of Southeast Sulawesi, Indonesia. The mine is owned and operated by PT Aneka Tambang Tbk (Antam).

Combined production capacity of 27,000 tonnes of nickel contained in ferronickel (TNi) per year; 2024 production reached 20,103 TNi.

On-site processing of lateritic nickel ore into ferronickel shots using Rotary Kiln-Electric Furnace (RKEF) technology in FeNi II, III, and IV smelters.

Ferronickel smelters (FeNi II, III, IV) with RKEF technology, rotary dryer, impeller breaker, conveyor belts, 137 MW multi-fuel power plant, 50 MW diesel power plants, heavy equipment with GPS tracking.

Estimated to create approximately 1,500 jobs during construction and 400 ongoing operational roles. Contractor workforce reduced from 400 to 300 people in March 2024.

The West Musgrave Project is a copper and nickel project in the Musgrave Province of Western Australia, approximately 1,300 km north-east of Perth. It includes the Nebo and Babel nickel-copper deposits. A final investment decision was made in September 2022, and construction began in November 2022.

Production overview - 2022: nickel 720000 t, copper 790000 t.

The planned processing facility has a capacity of 13.5 Mtpa, using dry grinding with vertical roller mills and a bulk flotation circuit to produce separate copper and nickel concentrates.

processing facility, vertical roller mills, bulk flotation circuit, hybrid solar and wind power system

Project temporarily suspended from October 2024 due to nickel market oversupply; review planned by February 2027. Construction was 30% complete at the time of suspension.

150‑200 personnel

The Avebury Nickel Mine is a nickel sulphide mining and processing project located about 8 km west of Zeehan on Tasmania’s west coast. It was historically one of Tasmania’s significant nickel producers and more recently reopened under new ownership after a decade of inactivity. The site also produces cobalt as a by‑product of nickel processing

Processing plant with crushing, grinding, flotation and thickening circuits

Underground mining gear, Conveyors and haulage systems, Underground ventilation and safety systems

More than 200 jobs for Kambalda Nickel Operations. 44 full-time staff and 220 contractors for Kambalda operations (Jan 2024).

The Cassini Mine is an underground nickel mine located in the Southern Goldfields region of Western Australia, approximately 60 kilometres south of the Kambalda township. It is part of the Kambalda Nickel Operations.

Planned 1.2 million tonnes of ore at 3.3% nickel grade over five years. Forecast to contribute 56% of Mincor's Kambalda Nickel Operations' total nickel-in-concentrate production. 45,029 tonnes of ore mined in Dec 2022 quarter (combined with Northern Operations).

jaw crusher, single-stage fully autogenous grinding circuit, chemical addition, flotation tanks at BHP's Kambalda Nickel Concentrator

Pit N Portal fleet, fuel storage and distribution, office buildings, change out buildings, maintenance workshops, washdown bays

300–400 workers

Cawse Mine is a nickel–cobalt mining project located in the Goldfields region of Western Australia, about 50 km northwest of Kalgoorlie.

Nickel and cobalt

Hydraulic excavators, Wheel loaders, Haul trucks, Drill rigs, Bulldozers, Graders

The Scotia Mine is an existing operation on high-level Care & Maintenance with substantial environmental databases mining, processing of resources, and the shipping of zinc and lead concentrates.

Copper is the primary commodity historically targeted, Historical workings also reported minor amounts of lead, zinc, gold and silver in some zones, Mineralisation is typically associated with vein and structural hosted deposits in the local Pilbara geology

Murrin Murrin = large open‑pit nickel–cobalt mine + on‑site hydrometallurgical refinery in WA, owned by Glencore and producing LME‑grade nickel and cobalt metal.

~700 (planned)

Large-scale awaruite nickel project with PFS and long mine life.

Planned nickel concentrate

Crushing, grinding, magnetic separation

Haul truck fleet 194 t (max 18); Haul truck fleet 289 t (max 16); Diesel hydraulic shovel; Electric hydraulic shovel; Front end loader.

Updated NI 43-101 Mineral Resource for an existing Cu-Ni mine in Sudbury; no new mine plan or initial CAPEX stated.

No current production

Crushing, grinding, flotation (conceptual)

Boom Truck (BOOM TRUCK MNE BT3) x1; Cassette Carrier (CASSETTE CARRIER MNE CS3-004) x1; Drill (DRILL ATL RB104) x1; Drill (DRILL ATL RB282) x1; Grader (GRADER CAT 135H) x1; Haul Truck (HAUL TRUCK ATL MT436B) x2; Haul Truck (HAUL TRUCK ATL MT5020) x1; Haul Truck (HAUL TRUCK Atlas Copco MT42) x2; Personnel Carrier (PERSONNEL CARRIER IND MINECAT) x1; Personnel Carrier (PERSONNEL CARRIER IND UT99) x4; Pickup Truck (PICKUP TRUCK 1500) x1; Scissor Lift (SCISSOR LIFT MNE SL3) x2; Scooptram (SCOOPTRAM ATL ST1030) x1; Scooptram (SCOOPTRAM ATL ST10300) x1; Scooptram (SCOOPTRAM ATL ST1520) x2; Scooptram (SCOOPTRAM ATL ST7.5Z) x3; Scooptram (SCOOPTRAM ATL ST710) x1; Utility Vehicle (Fuel/Lube Truck) x1; Utility Vehicle (UTILITY VEHICLE IND MINECAT) x1; Utility Vehicle (UTILITY VEHICLE TOYOTA) x1

Ownership/optioning described: Power Nickel exercised option to acquire 50% and intends to bring ownership to 80%.

Exploration drilling (surface drillholes used for MRE basis: 117 drillholes).

Ongoing

Smelting, milling

Underground: 2-boom electric hydraulic drill jumbos + 1-boom jumbos; ANFO/emulsion loading vehicles; LHDs 7.2 t & 9 t (plus some 5.4 t units at Totten) + 2.3–3.2 t utility LHDs; haulage trucks 27 t / 36 t / 45 t (incl 6 × 45 t electric trolley trucks at Coleman); support fleet “over 430 units” incl rockbolters, scissor lifts, shotcrete sprayers, shotcrete/cement transporters, mobile rock breakers, utility trucks w/ lifting booms, graders, rail locomotives & ore cars, backhoes, personnel vehicles, fuel trucks; Open pit (Copper Cliff Pit): waste fleet max 22 × 150 t rigid-frame haul trucks; ore fleet max 3 × 61 t rigid-frame trucks; digging fleet: 2 face shovels + a front-end loader + an excavator (7.5–22 yd³ buckets); drill rigs: max 5 blast-hole drills (6-inch bits) + 4 smaller drills (4-inch bits); support: 5 track dozers, 2 rubber-tire dozers, 3 graders, 2 water trucks; plus auxiliary equipment incl fuel/lube trucks, cable reeler, tire manipulator, lowbed, crew cab pickup, mechanic/maintenance/welder trucks, mine rescue truck, ambulance, forklifts, crew buses, dewatering pumps, lighting plants, generators, etc.

1,000–5,000 employees

Black Swan (PNG) Limited is a privately‑held security and risk solutions provider headquartered in Port Moresby, Papua New Guinea (PNG). The business focuses on delivering a broad suite of security, transport, ICT, and advisory services tailored to the unique operational, geographic, and risk conditions of PNG.

Crush–grind–flotation to Ni concentrate

IP and asset transport fleets, 24/7 CCTV monitoring and surveillance, Access control and alarm systems, GPS tracking and communications infrastructure

Nickel sulphide project 30 km N of Leinster; Odysseus decline development underway.

UG stoping; new concentrator planned

Historic Western Areas assets with UG mines; acquired by IGO; production reduced/suspended 2023.

UG stoping; concentrator

Note: Not in Australia. Flagging for completeness as Centaurus has no active Australian mines; focus is Brazil.

Proposed UG; flotation plant

Nickel sulphide operations around Kambalda incl. Cassini (new) and Durkin North. Restarted 2022; production halted 2023 under Wyloo.

UG stoping; ore hauled to BHP’s Kambalda Nickel Concentrator

Nickel mine 120 km W of Norseman; concentrator on C&M.

UG mining; concentrator on care & maintenance

Laterite Co-Ni-Mn project near Young, NSW; feasibility studies ongoing.

HPAL proposed; mixed hydroxide precipitate (MHP)

The Nova Operation is an underground mine located in the Fraser Range of Western Australia, approximately 160 kilometres east-northeast of Norseman. It is 100% owned by IGO Limited. The deposit consists of two orebodies, Nova and Bollinger.

fiscal year 2025 were 16,371 tonnes of nickel, 7,324 tonnes of copper, and 581 tonnes of cobalt

differential flotation circuit, selectively floats copper-bearing minerals before the nickel flotation, rougher/scavenger flotation stage followed by two stages of cleaning for both circuits, thickened concentrates are filtered via separate chamber filter presses, new process to produce high-quality nickel sulphate directly from the Nova nickel-cobalt sulphide concentrate

growing fleet of battery-electric vehicles, Sandvik LH517 loader, Safescape Bortana battery-electric light vehicle (BELV), workshop for servicing CAT excavators and loaders, Blue Cube MQi slurry grade analysers, Blue Cube TempoTracks on the flotation cells, underground refuelling bay, heavy vehicle wash bay