An international watchdog's report shows that most of the world’s top battery metals and renewable energy firms have faced allegations of abuse including land rights infringements, corruption and violence over the past 10 years.
Copper has slid 14% from this year’s high in mid-April on the back of a manufacturing slump and warnings that major economies are heading into recession.
Africa's No. 2 copper producer increased its sliding scale for royalties of 4 to 6% by 1.5 percentage points and introduced a new 10% tax when the price of copper exceeds $7,500 per tonne.