- The Democratic Republic of the Congo supplies the majority of mined cobalt.
- Battery cathode chemistries are gradually reducing cobalt intensity per kilowatt hour.
- ESG concerns around artisanal mining have created premium markets for traceable cobalt.
Why the DRC dominates cobalt mining
The Democratic Republic of the Congo holds the largest known cobalt-bearing copper sulfide deposits and produces the majority of world mine supply. Most DRC cobalt is a byproduct of copper mining, with both industrial-scale and artisanal small-scale mining contributing.
Refining concentration
China has the largest share of cobalt refining capacity. As a result, even non-DRC mined cobalt typically transits Chinese refineries before reaching battery makers. This adds a second layer of concentration to the cobalt supply chain.
Battery chemistry trends
EV cathode chemistries have evolved to reduce cobalt content. Lithium iron phosphate (LFP) cathodes contain no cobalt. High-nickel chemistries (NMC 811, NCA) reduce cobalt per kilowatt hour relative to earlier formulations. These shifts have moderated cobalt demand growth relative to overall battery demand.
ESG and traceability
Artisanal small-scale mining in the DRC has been associated with child labor and unsafe conditions. Battery makers and automakers have responded with traceability programs, certification schemes, and preferential sourcing from industrial mines. This has created a small but growing market for traceable cobalt at a premium.
Investment implications
Non-DRC cobalt projects (in Australia, Canada, the Philippines, and Indonesia) attract strategic interest from auto OEMs and Western governments. Demand growth depends on the chemistry mix as much as on EV unit volumes.
Concentration and chemistry trends are documented by the US Geological Survey, the International Energy Agency, and the Cobalt Institute.
Frequently asked questions
Concentration and chemistry trends are documented by the US Geological Survey, the International Energy Agency, and the Cobalt Institute.
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