Supply Chain

Manganese Supply Chain: From Mine to Market

South Africa dominates manganese reserves (~70% of global total in the Kalahari Manganese Field) and is a leading ore exporter along with Gabon and Australia. China is the largest ore importer and dominates downstream processing: silicomanganese smelting, EMM production, and increasingly HPMSM for batteries. Steel production accounts for ~90% of manganese demand globally, making it highly sensitive to steel cycles. The emerging battery demand for high-purity manganese sulfate (HPMSM) represents a small but rapidly growing segment. HPMSM production is concentrated in China (~95% of capacity), creating a supply chain bottleneck for non-Chinese battery manufacturers seeking battery-grade manganese.

Production Geography

Global Manganese production is led by South Africa, which accounts for approximately 37% of world output, followed by Gabon. The full list of major producing nations includes South Africa, Gabon, Australia, China, Ghana. This geographic concentration means that disruptions in key producing regions can have outsized impacts on global supply and pricing.

Extraction Methods

Manganese is extracted using the following primary methods:

• Open-pit mining
• Underground mining

Processing and Intermediate Products

Manganese is primarily sourced from Pyrolusite (MnO2), Braunite, Psilomelane, Rhodochrosite. After extraction, the raw material undergoes multiple processing steps including beneficiation, chemical treatment, and refining to reach the purity levels required by downstream industries. Typical ore grades range from 30-50% Mn.

Key Supply Chain Participants

The Manganese supply chain involves these major companies:

Supply Chain Vulnerabilities

Key vulnerabilities in the Manganese supply chain include concentration of 37% of production in South Africa, limited processing capacity diversification, and long lead times for new mining projects. Monitoring these vulnerabilities remains important for supply chain resilience planning.