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Strike Begins at Sibanye‑Stillwater’s US PGM Operations

September 15, 2026 at 09:12 PM•MINING.COM•bearish•Importance: 80/100
PlatinumPalladiumRhodium

Sibanye‑Stillwater will start a strike on September 3 at its Stillwater East mine and Columbus smelting complex, affecting roughly 750 workers. The strike could halt up to 55% of the company’s U.S. platinum‑group‑metal output, which includes platinum, palladium and rhodium. Production impact will depend on strike duration and restart logistics.

Sibanye‑Stillwater will start a strike on September 3 at its Stillwater East mine and Columbus smelting complex, affecting roughly 750 workers. The strike could halt up to 55% of the company’s U.S. platinum‑group‑metal output, which includes platinum, palladium and rhodium. Production impact will depend on strike duration and restart logistics.

Short‑term supply constraints are likely to lift prices for platinum, palladium and rhodium as traders anticipate reduced output. The disruption is unlikely to affect copper, aluminum or iron/steel markets directly.