As top exporter of steel and aluminium to the US, Canada sees new trade barriers as a threat to their economy.

U.S. President Donald Trump is expected to unveil new tariffs on all imports of steel and aluminum later today, Trump has said he will impose 25 per cent tariffs on all steel and aluminum imports, including from Canada and Mexico — a move that prompted sharp criticism from some provincial premiers.

President Trump said he's going to impose 25% tariffs on all foreign steel and aluminum imports starting Monday. It will have the biggest impact on allies like Canada and Mexico. CBS News' Nancy Cordes has more.

U.S. President Donald Trump's impending steel import tariffs will hit Ontario especially hard, where about half of Canada's steel production facilities are located. As Caryn Lieberman reports, while Ontario's steel manufacturers went through similar pain during Trump's first term,

U.S. President Donald Trump signed executive orders imposing 25% tariffs on all steel and aluminum imports, eliminating duty-free quotas for major suppliers like Canada, Mexico, and Brazil. The tariffs take effect on

US President Donald Trump plans to impose new 25% tariffs on steel and aluminum imports, escalating trade policy. He will announce reciprocal tariffs soon, affecting all countries. Canada, Brazil, and Mexico are major suppliers,