Nutrien (NYSE:NTR) said Thursday that President Trump's proposed 25% tariffs on Canadian imports would raise costs for U.S. farmers, as they rely heavily on Canada for inputs such as potash. Canada supplies more than 80% of the potash used on U.

Nutrien CEO Ken Seitz says if the U.S. implements widespread tariffs on Canadian goods, American farmers will be hard-hit as they rely heavily on Canada.