copper ore

Metal markets seem to think copper is the new lithium. A lack of new mining activity has added to worries that there won’t be enough of the red metal for the energy transition, a popular topic at this week’s World Copper Conference in…

Rio Tinto RIO -2.85% PLC offered to pay roughly $2.7 billion to buy out minority shareholders in Canada’s Turquoise Hill TRQ -2.52%…

ADELAIDE, Australia—KoBold Metals, a startup backed by Bill Gates’s Breakthrough Energy Ventures that aims to use artificial intelligence to find metals needed for the electric-vehicle boom, raised $192.5…