Rio Tinto advances Nuton copper processing technology at Johnson Camp mine
Nuton technology uses naturally occurring microorganisms to extract copper from primary sulphide ores, which are generally difficult to process.
04 December 2025
04 December 2025
Nuton technology uses naturally occurring microorganisms to extract copper from primary sulphide ores, which are generally difficult to process.
Once operational, the smelter will have a planned processing capacity of around 1.5mtpa of concentrate.
The study will evaluate options to increase throughput at the Séguéla processing plant.
Variously described as “meaningless”, “evolving” and “rebranding”, ESG is undoubtedly changing, with industry voices saying it is becoming a risk management framework.
"It's a subject that I hope is not going to be left aside or sidelined in the interest of critical minerals," said Pan American Silver’s Brent Bergeron.
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