Overview
- The White House said President Trump signed three proclamations on Monday that impose up to 50% additional duties on a set of Canadian products and that the measures will take effect on Aug. 19.
- The tariffs cover more than 400 product categories including wine, hockey sticks, cement, furniture and many food and drink items while explicitly excluding energy, fisheries and critical minerals.
- U.S. officials invoked section 338 of the Tariff Act of 1930 to justify the surtaxes after the U.S. Supreme Court limited earlier emergency tariff powers.
- Canada’s prime minister Mark Carney called the move a direct violation of the ACEUM and said Ottawa has taken equivalent retaliatory steps as provincial leaders threatened matching measures.
- Economists estimate the tariffs would affect about $20 billion of trade, pose risks to deeply integrated supply chains, and set the stage for fast legal challenges and intensive negotiations over the ACEUM review.