Zimbabwe's Mimosa Restarts Its Platinum Expansion as Prices Recover
Mimosa platinum mine, co-owned by Impala Platinum and Sibanye Stillwater, is restarting its hundreds of millions North Hill life-extension project following a recovery in platinum group metal prices.
Zimbabwe's Mimosa platinum operation, which is a joint venture between Impala Platinum and Sibanye Stillwater, is bringing its $130 million North Hill mine-life extension back from the shelf, spurred by a turnaround in platinum group metal (PGM) prices, a senior exec confirmed Thursday.
The country's one of the biggest platinum producers behind Impala's Zimplats had shelved the project two years ago as PGM values slumped under the weight of inventory drawdowns, sluggish automotive demand, and widespread anticipation of a rapid shift toward EVs.
Since then, however, PGM prices have staged a recovery. Constrained supply from South Africa, which accounts for roughly 70% of global platinum output, coupled with EV adoption moving at a slower pace than forecast, has helped tighten the market.
Mimosa makes approximately 250K ounces of PGM concentrates per year. But its current South Hill mineral deposit is becoming costlier to extract, general manager Stephen Ndiyamba said.
Despite the brighter price environment, South African producers remain guarded about committing to brand-new output expansion. The lingering long-term risk posed by EVs, which do not need autocatalysts, continues to temper investment appetite. Instead, companies such as Impala are favoring mine-life extensions as a more measured way to sustain production levels.
The Mimosa revival signals cautious optimism in the PGM sector, where the near-term supply-demand picture has improved even as the industry keeps a watchful eye on the energy transition's eventual impact on autocatalyst demand.