Today, 98% of the potash used in the U.S. is imported. Top countries for potash exports include Canada, Belarus, China, and Russia—with the last three accounting for 55% of global supply. On ...

A worker holds potash fertilizer at the Nutrien Cory potash mine in Saskatoon, Saskatchewan, Canada, on Tuesday, Nov. 29, 2022. Credit - Heywood Yu—BloombergGetty Images As the U.S.-Canada trade ...