African Rainbow Minerals Approves Bokoni Platinum Project Expansion and Nkomati Nickel Mine Restart

African Rainbow Minerals (ARM) has approved a 15.2 billion rand ($927 million) upgrade to its Bokoni platinum operations in South Africa, along with a restart of its Nkomati nickel mine, the company announced Thursday, according to Reuters. The Bokoni project will include a new concentrator processing 120,000 metric tons of ore per month, with steady-state output expected to reach between 350,000 and 400,000 ounces of platinum group metals (PGMs) annually by 2032.
ARM will also spend $46 million to restart the Nkomati nickel mine, which was placed on care and maintenance in 2021 after weak nickel prices made it unprofitable, according to MarketScreener UK. The restart is expected to produce 56,065 tons of nickel concentrate each year.
ARM's board approved a phased upgrade of its Bokoni PGM operations, according to MarketScreener Canada. The project carries a total price tag of 15.2 billion rand, or roughly $927 million. The upgrade is structured in phases, meaning costs and construction will roll out over several years rather than all at once.
The new concentrator will handle 120,000 metric tons of ore each month. PGMs are a group of six metals — including platinum and palladium — used in car exhaust systems and electronics. ARM expects the mine to hit full production by 2032, churning out up to 400,000 ounces of PGMs per year, according to Reuters.
The Nkomati mine was shut down in 2021. At the time, falling nickel prices made it too expensive to keep running. ARM put the mine on "care and maintenance," which means it kept the site safe but stopped producing metal, according to MarketScreener UK.
Now ARM is betting nickel prices have recovered enough to justify a restart. The company plans to spend $46 million on the restart. Once running, Nkomati is expected to produce 56,065 tons of nickel concentrate per year, according to Reuters. Nickel is a key ingredient in batteries for electric vehicles.
South Africa holds the world's largest known reserves of platinum group metals. ARM's decision to invest heavily in Bokoni signals confidence that demand for PGMs will stay strong. Platinum and palladium are critical for catalytic converters, which cut harmful emissions from car exhaust, according to MarketScreener España.
The project's long timeline — with steady-state production not arriving until 2032 — reflects how large and complex the Bokoni upgrade is. ARM is essentially building a major new mining operation from the ground up. The phased approach lets the company manage costs and adjust if commodity prices shift along the way, according to MarketScreener Canada.
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