Trump reiterated that he planned to put tariffs on Canada and Mexico from Feb. 1 but markets still don’t know the full extent of the levies.

The move could devastate international trade and manufacturing, especially for an automotive industry with operations integrated across North America.

White House press secretary Karoline Leavitt said that there will be 25% tariffs on imports from Canada and Mexico and 10% tariffs on goods from China starting on Saturday. This fulfills Trump’s repeated promise to implement tariffs on these countries throughout his campaign.