OTTAWA—Canadian steel producers told lawmakers Tuesday they are already facing lower sales because of U.S. tariffs and warned of more problems ahead should Ottawa escalate its trade row with the U.S.
Retaliation from Canada could exacerbate matters, business leaders warned lawmakers in a specially convened gathering of the legislature’s trade committee. They testified that U.S. tariffs on Canadian autos—as President Donald Trump has threatened—could bring a wide swath of Canadian factories to a stand still.
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