Global Manganese and Magnesium Market: Supply Risks Spark Q4 Price Fluctuations

The global market for industrial minerals experienced notable volatility in November 2025, driven by production cutbacks and shifting export policies in key producing regions. Magnesium prices saw an 8.5% MoM increase, stabilizing at approximately $3,450 per tonne, following environmental inspection pauses at several smelting facilities in China's Shaanxi province, which accounts for over 60% of global output.

Concurrently, manganese supply chains faced logistics bottlenecks. Port congestion in South Africa—the world’s largest manganese ore exporter—combined with infrastructure maintenance on the key rail corridors to the Port of Ngqura, led to a 6% reduction in European port arrivals compared to October. This inventory pinch has driven up spot prices for high-grade manganese ore (44% Mn) to $5.20 per dry metric tonne unit (dmtu).

These constraints are piling pressure on European alloy producers and the automotive supply chain, where magnesium and manganese are irreplaceable for lightweight aluminum structures. GranTi’s market analysis suggests that while short-term volatility will persist through December, opening new strategic stockpiles in Southern Europe could help mitigate long-term deficits. Traders are advised to utilize mid-term forward contracts to hedge against potential transport disruptions heading into Q1 2026.