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Rio Tinto spending $108m to study going underground at Kennecott

MINING.COM Staff Writer | July 23, 2021 | 6:48 am Top Companies USA Copper 

Rio Tinto has approved a $108 million investment in underground development to enable early orebody access and undertake orebody characterisation studies for underground mining at the Kennecott copper operations in Utah. The investment builds on $25 million approved in early-2020...

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