...The Potash Corporation of Saskatchewan Inc. (, ), today generally referred to as PotashCorp, is a Canadian corporation based in Saskatoon, Saskatchewan. The company is the world's largest potash producer and the second and third largest producer of nitrogen and phosphate, three primary crop nutrients used to produce fertilizer.Potash Corp. of Saskatchewan 2007 Annual Report, "Company Overview", pp. 6-24 via Wikinvest article At the end of 2007, the company controlled 22% of the world's potash production capacity, 2% of nitrogen production capacity and 6% of phosphate supply.Potash Corp. of Saskatchewan 2007 Annual Report, "Company Overview", pp. 7 via Wikinvest article Read full entry

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