It's nice to play with numbers and dream:
At a "projected production rate of 2.5 million tonnes per year" , $1000 per tonne of potash (2013), and 10% profit (just a guess) ...yields $250 million profit per annum (initially)...with total outstanding shares fully diluted (at this time ) approximately 100 million...that would be an EPS of $2.50...of course this doesn't account for the initial CAPEX (I recall something like $1.5 billion in a previous presentation).
Potash Corp analysts expect an EPS for 2009 of $9.75 (on sales of 6 million tonnes)...so my " back of the envelope " calculations wouldn't be so far off.
Lets use a conservative P/E of 5 for Potash One (in the year 2013) , we have a very nice upside potential. (currently Potash Corp has a P/E of 10).
Cheers, Luker