US President Donald Trump’s 25% tariffs on imports from Canada and Mexico would trigger a sharp decline in exports across all three economies. If retaliatory tariffs are imposed, Canada’s exports could shrink by 28%, Mexico’s by over 35%, and the U.S.’s by 22%, reflecting the deep integration of the countries’ trade flows. Mexico’s and Canada’s manufacturing sectors would suffer the most, with value-added losses of 13% and 14%, respectively. In the U.S., the agricultural sector would take the biggest hit, facing a 2.4% drop in value added.