South Africa's platinum mining industry is facing intensifying cost pressure as Eskom electricity tariffs rose 12.7% in April 2026 and wage negotiations with the Association of Mineworkers and Construction Union (AMCU) are underway. All-in sustaining costs for major producers have risen 9% year-over-year.
Anglo American Platinum reported Q2 2026 AISC of $1,420/oz, up from $1,305/oz in Q2 2025. With spot platinum at $1,668/oz, the industry margin has narrowed to approximately $248/oz, the lowest since Q4 2023. High-cost producers are approaching break-even levels.
Eskom's latest tariff increase follows a cumulative 38% rise over the past three years. Underground mining is energy-intensive — ventilation, hoisting, and refrigeration account for 25-30% of total mine operating costs. Load-shedding events, while less frequent than in 2023-2024, still disrupt operations.
Labor costs are the other major pressure point. Wages account for 45-50% of total mine costs in South Africa. The AMCU has filed demands for a 15% wage increase across the industry. If granted, this would add approximately $80-100/oz to industry AISC in 2027.
The cost structure for South African platinum miners is tightening rapidly. If AISC continues to rise toward $1,500/oz (possible with the 2027 wage settlement), high-cost mines could face closure decisions, removing 100,000-150,000 ounces of annual supply. For procurement, this means $1,600-$1,650 represents strong value as the cost floor rises structurally.