You’re probably reading this article on a phone or laptop containing more than 30 different metals. Some will be common: aluminium casing, copper wires. But other metals are less familiar and much more scarce. Each iPhone contains less than a gram of lithium, for instance, but would not function without it.
We are in the midst of a geopolitically charged race for lithium and other so-called critical minerals. These materials are crucial for renewable energy, transport, data centres, aerospace and defence, among other things, and the transition to net zero will place unprecedented pressure on their supplies.
