http://www.theaustralian.com.au/business
Rio Tinto could start building a Canadian potash project within three years, according to its joint venture partner, as the big miner chases a fertiliser push by BHP Billiton to position itself at the forefront of a global food boom.
There is also growing speculation Rio will make a bigger plunge into the sector through an acquisition or joint venture of neighbouring junior Western Potash, or even by joining BHP.
Last week, Rio revealed it had made a “tier-one” potash discovery at its KP405 lease near Regina, in Saskatchewan’s Elk Point Basin. This is the basin where BHP is spending $US3.8 billion ($4.2bn) sinking big mine shafts and building associated infrastructure about 200km to the north to be ready for expected growth in global demand for the crop fertiliser.
Rio’s Russian partner, Acron, has called the find “massive” and, based on a Rio report, capable of supporting a long-life, low-cost potash mine. Still, KP405 is lower grade, has been proved up to a fraction of the certainty and is less than a third the size of the resource BHP is targeting. It is also nearly twice as deep, meaning mining methods will be different and probably more expensive.