Anglo-Australian mining giant announces US$2.5-billion investment in Rincón project in Salta Province, with chief executive praising Milei’s reforms and RIGI scheme.

Rio Tinto will invest $2.5 billion to increase production capacity at its Argentina lithium project, it said on Thursday, as it seeks to cement its position as one of the world's biggest miners of the battery metal.

Rio Tinto has doubled down on its lithium bet with a big investment in its Rincon lithium brine project, months after agreeing to buy Arcadium Lithium.