Canada is vowing to retaliate if U.S. President Donald Trump makes good on his pledge to impose steep tariffs on steel and aluminum producers -- while holding out hope that it could be exempt.
Trump said he intends to slap a 25 percent duty on steel imports and 10 percent on aluminum in order to protect the national industry, though details remain unclear. His words sent U.S.-based producers rallying but could hurt companies that ship steel and aluminum from Canada, including Rio Tinto Group and Stelco Holdings Inc., without an exemption.