the copper series: the cobalt connection
cobalt in the zambian copperbelt is not incidental. cobaltiferous pyrite, carrollite, linnaeite — they form in the same reducing chemical environment as the copper sulphides, in the same geological horizons, in the same ore bodies. the mines that produce copper from the katangan basin sedimentary sequences produce cobalt from the same rock.
the chambishi metals plant — operated by CNMC — processes cobalt-bearing residues and concentrates from multiple sources across the copperbelt into cobalt metal and cobalt compounds for the international market. zambia produces approximately 3,000 to 5,000 tonnes of refined cobalt per year — the world's second largest cobalt producer after the DRC, which dominates global production at approximately 70 percent of world supply.
why this matters with particular urgency in 2026.
a lithium-ion battery in an electric vehicle contains cobalt as a critical component of the cathode material. cobalt content per battery has been declining as manufacturers develop higher-nickel, lower-cobalt formulations. but even at reduced cobalt content, 30 to 40 million EVs per year by 2030 represents enormous demand that the supply side cannot easily match.
the DRC's dominance — approximately 70 percent of global mine production — creates exactly the supply chain concentration that the american minerals security partnership, the EU critical raw materials act, and battery manufacturers are actively trying to diversify away from. the child labour documented at DRC artisanal cobalt sites has created powerful consumer pressure on EV manufacturers to demonstrate that the cobalt in their products is responsibly sourced.
zambia's cobalt: produced as a by-product of industrial copper mining. regulated. documented supply chain. without the artisanal child labour issues that characterise DRC artisanal cobalt. positioned as exactly the ethical, traceable, responsibly sourced cobalt that EV manufacturers and battery producers are willing to pay a premium for.
the cobalt story is the copper story's most important companion.
and it points directly to the next series — the cobalt series — that this content will begin when the copper series draws fully to its close.
zambia is not just copper. it never was. 🟠🔵











