Colin Steyn, president and chief executive officer of LionOr [Getty Images]

CANADA - MARCH 26: Colin Steyn, president and chief executive officer of LionOre Mining International Ltd., speaks during a news conference in Toronto, Ontario, Canada, with Ian Pearce, chief executive officer of the Xstrata Plc nickel unit, left, Monday, March 26, 2007. Xstrata Plc, the world's fifth-largest mining company, agreed to buy Canada's LionOre Mining International Ltd. for $4 billion, increasing nickel production by 36 percent at a time of record-high metal prices. (Photo by Norm Betts/Bloomberg via Getty Images)

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