Two Countries Supply Most of the World's Manganese

South Africa and Gabon produce the vast majority of the world's manganese, leaving global infrastructure and the green energy transition highly vulnerable to localized supply shocks.

In the global discourse surrounding critical minerals, elements like lithium, cobalt, and nickel frequently dominate the headlines. Yet, there is another mineral that quietly underpins the entire global industrial economy: manganese. This unsung element is an absolute necessity in metallurgy, serving as an indispensable component in virtually every ton of steel ever made. Without manganese, steel loses its structural integrity, becoming highly brittle and essentially useless for construction, manufacturing, or infrastructure.

This absolute dependency makes the geography of manganese extraction a matter of vital economic security. However, the global supply chain for this critical mineral is remarkably fragile, characterized by an extreme geographic concentration of mining and processing. The vast majority of the world's mined manganese is controlled by just two nations, leaving global industries highly vulnerable to localized disruptions.

The Mining Duopoly: South Africa and Gabon

At the mining stage, global manganese output is dominated by an incredibly small group of producers. South Africa and Gabon stand as the undisputed giants of the industry, together accounting for roughly 60 percent of the world's mined manganese supply.

When Australia and a select handful of other nations are added to the equation, the concentration becomes even more pronounced. The top five producing countries cover nearly all of global output. For the rest of the world, domestic manganese mining is so minimal that it amounts to little more than a rounding error. This means that the global steel industry—and by extension, the global construction and manufacturing sectors—is quietly and deeply dependent on the stability of just two primary nations.

This high level of geographic concentration introduces significant systemic risk. Because the mining of this essential mineral is concentrated in so few jurisdictions, any localized supply shock—whether caused by political instability, labor disputes, infrastructure failures, or natural disasters in Gabon or South Africa—is immediately felt by the entire global steel industry.

The Chinese Processing Bottleneck

The vulnerability of the manganese supply chain is further compounded by a stark geographic decoupling between where the mineral is mined and where it is refined. Raw manganese ore extracted from the ground cannot be directly utilized by steel mills; it must first be processed into refined alloys.

While South Africa and Gabon dominate the extraction of raw ore, they do not dominate the refining process. Instead, this crucial step is heavily concentrated in China. China mines very little manganese within its own borders, yet it processes the vast majority of the world's supply into the refined alloys that steel mills actually buy.

This setup creates a highly centralized bottleneck. Raw ore from African and Australian mines must be shipped to Chinese facilities to be transformed into usable alloys before it can finally reach global steel mills. Consequently, the global market is exposed to a double layer of concentration risk: extraction is concentrated in a few nations like South Africa and Gabon, while processing is almost entirely reliant on China.

The EV Battery Revolution and Rising Demand

As if the traditional demands of the steel industry were not enough to strain this concentrated supply chain, a new driver of demand is rapidly emerging: the electric vehicle (EV) market.

Battery manufacturers are actively seeking ways to reduce their reliance on expensive and supply-constrained materials like cobalt. Manganese has emerged as a highly attractive alternative, offering a cheaper and safer option for EV battery chemistries. This technological shift is driving global demand for manganese upward at a rapid pace, adding an entirely new layer of pressure to a supply chain that is already operating with a very thin margin of safety.

Ultimately, the global economy's reliance on manganese highlights a profound structural vulnerability. With the production of a foundational material concentrated in just two nations, and its processing concentrated in another, the global industrial base remains highly exposed to the next inevitable supply shock.

Frequently asked

Why is manganese so important for steel production?

Manganese is a critical ingredient in metallurgy, present in virtually every ton of steel ever made. Without it, steel becomes brittle and structurally useless for construction and manufacturing.

Which countries dominate the global mining of manganese?

Global manganese mining is highly concentrated, with South Africa and Gabon together accounting for roughly 60 percent of the world's supply. When combined with Australia and a few other nations, the top five producers cover nearly all global output.

What role does China play in the manganese supply chain?

While China mines very little manganese domestically, it processes the vast majority of the world's raw manganese supply into the refined alloys that steel mills actually purchase.

How is the transition to electric vehicles affecting manganese demand?

Demand for manganese is climbing rapidly because electric vehicle battery manufacturers are increasingly using it as a cheaper and safer alternative to cobalt.

This explainer is AI-assisted and fact-checked against the cited primary sources above.