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Arizona copper developer in agreement with Rio's Nuton

Arizona-headquartered Excelsior Mining has entered into a collaboration agreement with Rio Tinto venture Nuton to evaluate the use of its Nuton copper heap leaching technologies at Excelsior's Johnson Camp mine in the state, Excelsior said.

Steven Swindells
Excelsior signs copper deal with Rio

Excelsior signs copper deal with Rio

Rio Tinto has developed the Nuton technologies, an extensive portfolio of advanced copper heap leaching technologies targeted at primary sulfide minerals including lower grade minerals, which could not...

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