CoSO₄. Not one you hear about often. But this understated compound plays a critical role in some of the fastest-growing industries in the world.

Cobalt sulphate is the refined, chemical form of cobalt. Cobalt itself is a hard, silver-grey metal, mostly produced as a by-product of copper and nickel mining. In other words, its supply is tied to other mining operations. It isn’t necessarily rare, but because of this dependency, it is economically scarce.

CoSO₄ is typically produced from cobalt hydroxide or cobalt metal. Quick disclaimer before we continue: cobalt metal, cobalt hydroxide and cobalt sulphate are not the same thing. In this value chain, the form matters. Cobalt metal is the refined metallic form, cobalt hydroxide is a partially processed intermediate, and cobalt sulphate is the chemical form used directly in battery production.

Interestingly, the Democratic Republic of the Congo produces around 70% of the world’s cobalt, with additional supply coming from Russia, Australia and Canada. This concentration, combined with a long and complex supply chain, introduces both risk and pricing volatility.

After mining and initial processing, much of the world’s cobalt feedstock is refined into cobalt sulphate in China, which dominates downstream processing capacity.

So, why all the trouble?

Cobalt sulphate is a critical input in the production of cathode materials for lithium-ion batteries, particularly in nickel-manganese-cobalt (NMC) and nickel-cobalt-aluminium (NCA) chemistries. These batteries power electric vehicles; energy storage systems and the everyday devices we rely on. Without materials like cobalt sulphate, many of today’s high-performance batteries simply wouldn’t perform as efficiently or last as long.

⚡ Did you know?

Electric vehicle adoption is accelerating globally, with manufacturers like Tesla and BYD driving demand for battery materials such as cobalt sulphate.

Closer to home, South Africa is still early in its EV journey, but growth is steady as infrastructure expands and more vehicles enter the market.

In short, even locally, we are part of a much bigger global shift powered by materials most people never think about, including CoSO₄.

At Mineral-Loy, our focus has always been on aligning material supply with the operational realities of our clients.

As cobalt sulphate continues to gain importance across battery and industrial applications, we are actively positioning ourselves within this market, building the relationships and market understanding required to support consistent and reliable supply.

This includes a strong emphasis on:

• Partnering with reputable producers
• Ensuring material quality and specification alignment
• Navigating market volatility with a structured, informed approach

Because in a market as concentrated and dynamic as cobalt, supply is not just about availability. It’s about dependability.

And as this market continues to evolve, working with the right partner will matter just as much as the material itself.

If cobalt sulphate forms part of your sourcing requirements, we’d welcome the opportunity to discuss how Mineral-Loy can support your business. Contact our team to learn more.