Which company that mines two key crop nutrients—phosphate and potash did James T. Prokopanko  serve as president and Chief Executive Officer of?
James T. Prokopanko: James T. Prokopanko is the former president and Chief Executive Officer of The Mosaic Company and has served in that capacity from January 1, 2007 to August, 2015. The Mosaic Company:  Mosaic mines two key crop nutrients—phosphate and potash—and produces specialty products MicroEssentials, K-Mag and Pegasus.
The Mosaic Company