China, the leading holder of international deep sea exploration licences, increases its lead in the race for alternative sources of battery minerals by taking samples from cobalt-bearing mountains deep in the Pacific.
China is the world's biggest consumer of the metal but its own copper mine production has been stagnating amid a broad crackdown on pollution, exacerbating a heavy reliance on imports.
Aluminium is a metal key for the transport and packaging industries but at current prices about 40% of the world's aluminium production is losing money.
While lithium giants like SQM and Albemarle tangle with one another over scarce lithium brines and water, a beautiful lithium mine in Nevada’s Clayton Valley is taking shape.