Sibanye-Stillwater Targets Lower Costs as US PGM Operations Return to Profitability
[SMM Express] Sibanye-Stillwater reported that its Stillwater and East Boulder platinum group metal (PGM) operations in Montana returned to profitability during the second half of 2025 following restructuring measures implemented in response to weaker PGM prices. The company has launched an optimisation programme aimed at reducing all-in sustaining costs to approximately US$1,000 per 2E ounce over the next two to three years.
The strategy includes evaluating higher levels of mechanisation at both underground mines to improve productivity and strengthen long-term competitiveness. While the Stillwater West section remains on care and maintenance following restructuring in 2024, mining continues at the remaining operating sections supported by integrated processing facilities.
According to the latest operational update, the US PGM operations reported 2E PGM Mineral Reserves of 19.4 million ounces and Mineral Resources of 80.9 million ounces as at the end of 2025. The optimisation programme highlights the continued focus of PGM producers on improving operational efficiency and cost competitiveness amid ongoing market volatility and evolving demand fundamentals.