Canada to Match US Tariffs Dollar-for-Dollar as Talks Collapse

Trade talks between Washington and Ottawa broke down at the last minute, and Prime Minister Mark Carney has vowed a full reciprocal response to the new US tariff wave. The Trump administration's latest round of tariffs against billions of dollars worth of Canadian goods took effect just after midnight Saturday, after the two countries failed to seal a last-minute trade deal that satisfied both sides.

What just happened

The US has now imposed 50% tariffs on $20 billion worth of Canadian products. Prime Minister Mark Carney says Canada will match those tariffs dollar for dollar starting Sept. 8.

Earlier in the day, the Trump administration invoked Section 338 of the Tariff Act of 1930, a rarely used provision that allows the head of state to impose duties of up to 50% on imports from countries deemed to have subjected US commerce to unequal or discriminatory treatment.

Why the deal fell apart

Carney said the collapse of negotiations came after Washington introduced last-minute demands that he described as unfair and uneconomic, including proposals that would have limited Canada's ability to strike trade agreements with other countries. He said US proposals would also have affected Canadian culture, language and sovereignty, though he did not elaborate.

Shortly after midnight, US Trade Representative Jamieson Greer responded to Carney on social media by saying that Canada had declined to finalize the trade deal under the terms agreed earlier this week. Despite the US offer to Canada to receive the best treatment of any major exporter to our market, new demands and walk backs of other commitments by Canada have upended the careful balance reached in the past days, Greer said.

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What Canada is targeting

Carney said those retaliatory measures would take effect on September 8 and would target several US industries, including steel, dairy products, appliances, agricultural equipment, pulp and paper, and electronics.

The initial US tariffs hit $20 billion worth of Canadian products, including some dairy products, alcoholic beverages, cement and hockey equipment. The tone from Ottawa has escalated sharply, with Carney likening the US actions against Canada to a conflict. You're at war when you get attacked. We got attacked, he said.

Options market and stocks to watch

Traders should watch names with meaningful cross-border exposure to steel, autos, dairy, appliances, and paper as the Sept. 8 retaliation date approaches.

• U.S. Steel (X) and Nucor (NUE): watch for volatility on both sides as Canada targets US steel in its retaliation basket.
• Whirlpool (WHR): appliances are explicitly on Canada's retaliation list, watch for margin commentary.
• Deere (DE): agricultural equipment is in the crosshairs of Canadian counter-tariffs.
• International Paper (IP): pulp and paper is on the target list.
• Ford (F) and GM (GM): watch USMCA exposure and any spillover if the tit-for-tat widens beyond the current baskets.

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