Rio Tinto PLC RIO shares slid 2.22% to £48.03 Friday, on what proved to be an all-around rough trading session for the stock ...

Rio Tinto is one of the world’s largest miners with operations in iron ore, aluminum (including bauxite and alumina), copper, and minerals (mineral sands, borates, salt, diamonds). Commodity demand is ...

Rio Tinto RIO announced that it would invest in Pongamia seed farms in Australia to explore the possibility of using its seed oil as a feedstock for renewable diesel. RIO sees biofuels as an avenue to ...

CMP Compass Minerals International, Inc.