Rio Tinto approves development of Silvergrass mine to maintain Pilbara blend
Rio Tinto will invest an incremental $338 million to complete the development of the Silvergrass mine in its world-class Pilbara iron ore operations in Western Australia. The brownfield expansion of the high-grade Silvergrass mine offers attractive returns, with an expected internal rate of return for this investment well in excess of 100 per cent1 and …