03:27 PM EST - Potash Corp of Saskatchewan : said on Thursday it would take more steps to expand its mines by 2012 to meet surging world demand for potash. Potash Corp said it would spend $1.6 billion to add 2.7 million tonnes of capacity at three of its Saskatchewan mines by 2012, taking its total capacity to 18 million tonnes. Potash Corp of Saskatchewan
shares T.POT are trading off $14.99 at $209.07.