Record Sulphur Price Surge Pressures African Copper Miners and Indonesia’s Nickel Industry

Nickel smelter in Sorowako, Indonesia. Stock image.

A sharp rise in global sulphur prices—triggered by geopolitical tensions linked to the Iran war—is increasing production costs for both African copper miners and Indonesia’s nickel producers, raising concerns about future supply growth.

Sulphur Rally Hits Key Mining Inputs

Sulphur and its derivative, sulphuric acid, are essential in metal processing and refining, particularly in copper extraction and nickel production.

The Middle East, which accounts for roughly 24% of global sulphur supply, plays a crucial role in the market. As a byproduct of oil and gas refining, disruptions in the region have significantly tightened global supply.

Prices Surge Across Global Markets

According to Argus Media data:

In Indonesia, sulphur prices have jumped around 20%, reaching approximately $600 per tonne, with some transactions exceeding $700 per tonne for high-pressure acid leaching (HPAL) nickel operations.
In Southern Africa, prices have surged even more sharply—up 37% to $715 per tonne.
Smaller sulphur shipments from African port warehouses have seen extreme increases of up to 66%, hitting $1,000 per tonne.

These levels mark the highest sulphur prices in at least five years, reflecting tightening supply and rising demand.

Impact on Africa’s Copperbelt

The surge is particularly concerning for copper producers across Africa’s key mining regions, especially the Copperbelt.

Higher sulphur costs could:

• Delay expansion projects
• Increase operational expenses
• Slow overall copper supply growth

Industry analysts warn that sustained high prices may disrupt long-term investment plans and reduce output growth across the region.

Nickel Sector Also Under Pressure

Indonesia’s nickel industry, a major global supplier, is also facing rising costs—especially for high-pressure acid leaching (HPAL) operations, which rely heavily on sulphuric acid.

This could impact the production of battery-grade nickel, a key component in electric vehicle supply chains.

China’s Smelters May Benefit

While producers face mounting cost pressures, China’s copper smelters could see a financial upside.

Higher sulphur and sulphuric acid prices may:

• Boost byproduct revenues
• Offset weak treatment and refining charges

This dynamic could strengthen China’s position in global metals processing.

Outlook: Supply Risks and Market Volatility

If sulphur prices remain elevated:

• Mining project timelines could be delayed
• Global copper and nickel supply growth may slow
• Commodity markets could face increased volatility

The situation highlights how geopolitical shocks can ripple across global supply chains, particularly in resource-dependent sectors like mining.