The National Union of Mineworkers (Num) vowed on Wednesday to "cut De Beers to size" for refusing to accede to its 15 percent salary increase demand. "De Beers is a little fish in a very large pond," said Peter Bailey, the union's chief negotiator

Copper may rise in London this week, extending a third weekly gain, on speculation that the prospect of a supply shortfall will keep bolstering prices even as Europes debt crisis continues. Copper has climbed 2,8% this month in London, while the MSCI