Copper ore travels along a conveyor belt at the processing plant of Rio Tinto Group's Northparkes copper and gold underground block cave mine in Parkes, New South Wales, Australia. Photographer: Carla Gottgens/Bloomberg
Copper ore travels along a conveyor belt at the processing plant of Rio Tinto Group's Northparkes copper and gold underground block cave mine in Parkes, New South Wales, Australia. Photographer: Carla Gottgens/Bloomberg