Oxygen “whiffs" may have changed the earth’s mantle, altering the continental crust's composition and forming ore deposits.

Goldbeating is an age-old craft pioneered by ancient Egyptian artisans more than five millennia ago.

Moody’s Investors Service potential downgrade adds to Codelco's worries, including rising debt, declining ore grades and inflation.

IDTechEx forecasts that graphite will remain the most widely used anode material in Li-ion batteries through the medium term with demand exceeding 2 million tonnes by 2029.

BHP is studying ways to offset an expected drop in copper grades in Chile, including a new concentrator and taking Escondida underground.