.RioTinto has approved a $55million investment into underground mining at its kennecottutah copper mine in the USA resources CriticalMinerals BatteryMetals
PERTH – Diversified miner Rio Tinto has approved a $55-million investment to start underground mining at the Kennecott copper operations, in Utah.
The underground ore will be processed through the existing facilities at Kennecott, one of only two operating copper smelters in the US.
Underground battery electric vehicles are currently being trialled at Kennecott to improve employee health and safety, increase productivity and reduce carbon emissions from future underground mining fleets.
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