Trump previously said he would increase from 25% to 50% tariffs for Canada after Ontario said it would raise electricity prices on U.S.

U.S. President Donald Trump's increased tariffs on steel and aluminum imports took effect on Wednesday as prior exemptions, duty free quotas and product exclusions expired, as his campaign to reorder global trade norms in favor of the U.

U.S. President Donald Trump on Tuesday ramped up the burgeoning trade war with Canada, vowing to double tariffs set to take effect within hours on all imported steel and aluminum products from America's northern neighbor to 50% - although he later said he would likely lower them after Canadian officials agreed to talks.