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US Hikes Steel and Aluminum Tariffs to 50%; Canada Readies Retaliatory Measures

After denouncing the levies as illegal, Mark Carney is engaged in direct negotiations with President Trump over possible countermeasures.

U.S. President Donald Trump arrives to speak during a visit to US Steel - Irvin Works in West Mifflin, Pennsylvania, May 30, 2025, to mark the deal between Nippon Steel and US Steel.
The Algoma Steel plant in Sault Ste. Marie, Ont. Hefty tariffs placed on steel by U.S. President Donald Trump are hurting the metal industry.

Overview

  • President Trump’s June 4 executive order doubles section 232 duties on imported steel and aluminum from 25 percent to 50 percent for nearly all trading partners.
  • Canada, which supplies about two-thirds of US aluminum and more steel than any other country, currently maintains reciprocal tariffs on over CAD 90 billion of US goods.
  • Prime Minister Mark Carney has branded the tariff hike “unjustified and illegal” while coordinating intensive talks and direct calls with the White House.
  • Industry Minister Mélanie Joly has met with steel executives and union leaders but says Ottawa will hold off on new levies until talks conclude.
  • Analysts warn the higher duties could add roughly USD 15 billion in costs for American consumers and threaten thousands of jobs in North American manufacturing.