http://www.vulcanminerals.ca/media/uploads/news/Vulcan_Minerals_spins_off_potash_subsidiary.pdf

09-03-11  Vulcan Minerals Spins Off Potash Subsidiary, Daniel MacEachern, The Telegram

“We’ve had it for several years, but what’s happened,
of course, is that the price of potash has increased
probably five, sixfold over that period of time. It’s a
commodity which is in significant demand worldwide