Potash Offer For K+S A Sign Of Weakness By: TalkMarkets July 16, 2015 at 16:59 PM EDT Many analysts have questioned the logic of Potash Corp.’s offer for K+S. After all, why would a low-cost producer want to buy one of the highest producers of potash? Read More >> Related Stocks: Agrium, Inc. Bhp Billiton Ltd ADR K Plus S Ag ADR Mosaic Co Potash Corporation of Saskatchewan