相互征收报复性关税 美加就关税问题争端不断

Group 1 - The U.S. President Trump announced a 35% tariff on goods imported from Canada starting August 1, with Canada’s Prime Minister vowing to protect national interests and enhance global trade in response to the tariff threat [1] - In March, the U.S. imposed a 25% tariff on products from Canada and Mexico, leading Canada to retaliate with a 25% tariff on $155 billion CAD worth of U.S. goods, with immediate effect on $30 billion CAD worth of products [3] - The U.S. began imposing a 25% tariff on all imported steel and aluminum on March 12, with a previous plan to double tariffs on Canadian steel and aluminum being retracted [3] Group 2 - Canadian Prime Minister Carney announced that Canada would implement reciprocal measures by imposing a 25% tariff on U.S. imported cars that do not comply with the USMCA [5] - Carney emphasized the interdependence of the U.S. and Canadian automotive industries, noting that half of the parts in Canadian-made cars come from the U.S. [7] - In June, the U.S. raised tariffs on steel and aluminum from all trade partners to 50%, which Carney criticized as unreasonable and illegal, stating it would negatively impact both U.S. and Canadian industries [9]