The U.S. Treasury in April imposed sanctions against billionaire Oleg Deripaska and eight companies in which he is a large shareholder, including aluminum exporter Rusal, in response to what it termed "malign activities" by Russia.
Pumpkin Hollow goes into production next year, but the underground mine is only the first phase of a planned Nevada copper operation four times the size.
South Africa's National Union of Mineworkers (NUM) signed a three-year wage deal with AngloGold Ashanti, inking the same agreement that other unions reached with the company earlier in the week.