According to the UN Environment Program's latest report, most of the 40 significant mine waste accidents in the past decade have involved dams or other storage areas that failed.
The state-run firm also said that this year's output of electrolytic copper from its own concentrates will be 35,000 tonnes than the planned 401,000 tonnes due to an accident at its smelter.
The mining veteran could face competition from internal candidates, including former head of UK gas company Centrica, Sam Laidlaw, who now sits on Rio’s board.
New reports highlighting the environmental dangers posed by mineral exploitation at the Mining Arch have emerged, as Venezuelan officials try to convince Alrosa to invest in the project.
Pilbara Minerals has announced a potential joint venture with two South Korean companies to develop a lithium processing facility in the Asian country.
Call options wagering on copper climbing above $10,000 a metric ton by Dec 2018 have started trading during past two weeks, with $4.5m spent by traders.