Rio Tinto venture makes strategic investment in Regulus Resources

Nuton, a Rio Tinto (ASX: RIO; LSE: RIO; NASDAQ: RIO) venture that has developed innovative copper sulphide leach technologies, is taking a 16.5% stake in Regulus Resources (TSXV: REG) for $15 million. Nuton’s technologies have the potential to process arsenic-bearing...