Rio Tinto acquires a stake in Sovereign Metals focused on graphite

Rio Tinto has agreed to buy a 15% stake in Australia's Sovereign Metals for A$40.4m ($27.6m), becoming a major investor in the critical minerals developer. The move by the world's second-largest miner marks its first public move into the graphite sector as it continues to increase its exposure to battery minerals. Rio Tinto's exploration arm […]