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Piedmont adds to Carolina resource

Lithium miner Piedmont Lithium has increased the mineral resource estimate for its Carolina project to 44.2-million tonnes, grading 1.08% lithium oxide for about 1.1-million tonnes of lithium carbonate equivalent. About 774 000 t of this lithium carbonate equivalent...

Rio Tinto sets ambitious autonomy targets

Cat 793F autonomous trucks at loading face. Rio Tinto has set a target of 80 per cent autonomous haul trucks in 2022, as it seeks to reduce costs while satisfying demand for materials. Speaking at Rio Tinto’s investor seminar on October 20, Iron Ore chief executive...

US plan would block Antofagasta Minnesota copper mine

 The US Forest Service on Wednesday proposed a 20-year ban on mining in Minnesota’s Boundary Waters region, a step that would block Antofagasta’s Twin Metals copper and nickel mine project. The announcement reversed a decision by former President Donald...