Copper futures edged higher in London and New York as tentative signs of buying interest emerged following a string of losses.
Toronto-based Mandalay has used revenue from its Bjorkdal gold mine in Sweden and Costerfield gold and antimony mine in Australia to accumulate $55 million in cash.
Prices for nickel, used in stainless steel and batteries, dropped towards $15,000 a ton on the London Metal Exchange.
Serra Verde started commercially producing concentrate in Brazil’s Goias state about a year ago.
