At the final stage of U.S.-Canada negotiations, relations suddenly soured—can the former 'good neighbors' return to how things were?

The U.S.-Canada trade negotiations collapsed at the eleventh hour, with the U.S. imposing a 50% tariff on approximately US$20 billion worth of Canadian goods, prompting Canada to announce equivalent retaliatory measures. Both sides accused each other of unilaterally altering terms, severely undermining long-standing mutual trade trust. Given the deep economic interdependence between the two countries, a full-scale rupture is unrealistic; however, U.S.-Canada relations may shift from 'high mutual trust' into a new phase of 're-pricing.' I. A Last-Minute Kick That Missed the Goal: The 50% Tariff Took Effect at Midnight. U.S.-Canada trade negotiations—on the verge of a handshake agreement—completely fell apart. At around midnight local time on August 22, the United States formally imposed a 50% tariff on roughly US$20 billion worth of Canadian goods, invoking Section 338 of the Tariff Act of 1930. The targeted products span hundreds of items—including wine, hockey sticks, cement, beer, milk, plywood, furniture, clothing, and fishing gear—suddenly exposing Canadian wineries and ice-hockey equipment manufacturers alike to Washington’s heavy-handed tariff hammer. In numerical terms, this US$20 billion represents just over 5% of Canada’s total exports to the U.S., about 5.2% of the U.S.’s US$383 billion in imports from Canada, and roughly 0.8% of Canada’s GDP. This retaliatory measure is not expected to inflict severe short-term damage on the Canadian economy. However, its medium- to long-term impact lies primarily in eroding investor confidence—and seriously undermining Canada’s status as a manufacturing export base for the U.S. market. Even more damaging is that this tariff does not simply raise an existing rate—from, say, 35% to 50%. According to the legal text, it applies *in addition to* all other applicable duties: previously duty-free goods now face an immediate 50-percentage-point cost increase, while goods already subject to ordinary tariffs could end up bearing burdens far exceeding 50%. This effectively creates a policy-level loophole in the USMCA’s duty-free protections. Canadian Prime Minister Mark Carney swiftly issued a statement announcing the immediate suspension of trade talks with the U.S. and the recall of Canada’s negotiating delegation from Washington. Carney also declared Canada would impose dollar-for-dollar retaliatory tariffs on U.S. goods. Just hours earlier, the two sides had still been widely believed to be nearing a deal. According to insiders, the prospective agreement would have lowered tariffs on Canadian steel, aluminum, and automobiles, while also allowing U.S. distilled spirits to resume exports to Canada. Yet within mere hours, negotiations plummeted from 'imminent signing' to 'total collapse'—a plot twist in North America’s trade drama so abrupt it left observers stunned. II. 'Last-Minute Clause Changes': Carney Denounces Unfair, Economically Illogical Demands. Faced with the sudden imposition of the 50% tariff, Canadian Prime Minister Mark Carney responded with exceptional firmness. In a late-night statement on August 21, Carney bluntly stated that the U.S. had abruptly proposed revised terms at the final stage of negotiations—terms he labeled 'unfair and economically illogical.' He further noted that these last-minute changes 'raise serious doubts about the reliability of any agreement.' Carney emphasized that although both sides had made substantial progress over recent weeks, Canada would never 'submit to an unequal treaty' merely to meet an arbitrary U.S.-imposed deadline. He said: 'Our government understood earlier than many others that the United States is reshaping *all* its trade relationships—including imposing tariffs on its closest allies and charging fees for access to its vast market.'

U.S.-Canada trade negotiations achieve a breakthrough: Reports indicate the U.S. plans to halve steel and aluminum tariffs to 25% and reduce auto tariffs to 15%.

A major breakthrough signal has emerged in U.S.-Canada trade negotiations, triggering an immediate market reaction. According to Bloomberg’s report citing informed sources, the proposed U.S.-Canada trade agreement would cut tariffs on Canadian steel and aluminum exports from 50% to 25%, and lower tariffs on Canadian automobile exports from 25% to 15%. On Wednesday, Trump stated, 'We may reduce some tariffs to levels comparable with those applied to other countries, because Canada had previously borne higher tariffs.' Following the announcement, Canadian steel producer Algoma Steel Group saw its intraday share price surge as much as 24%; U.S. steel manufacturer Nucor fell 8.9%, and Century Aluminum dropped 11%. The Canadian dollar edged up 0.2% in early London trading to CAD 1.3876 per U.S. dollar. Meanwhile, the emergence of this U.S.-Canada agreement framework poses potential risks for Mexico. As the third key member of the North American free trade bloc—alongside the U.S. and Canada—Mexico has already made multiple concessions to the Trump administration’s trade agenda, yet has still failed to secure tangible progress. Should Canada lock in preferential tariff treatment first, Mexico’s bargaining position within the trilateral trade architecture could weaken further. Negotiations remain ongoing, with details still to be finalized. The above agreement specifics have not yet been finalized and are not expected to apply uniformly across all product categories. According to insiders, different tariff rates may apply to derivative products containing steel or aluminum, and both sides are still discussing exemption clauses and other adjustments. The immediate backdrop to these negotiations is Trump’s announcement on Tuesday evening that he would pause—for three days—the planned imposition of US$50 billion in tariffs on Canadian goods, granting both sides additional time to negotiate. Previously, the U.S. had proposed imposing a 50% tariff on a broad range of Canadian goods, sharply escalating bilateral tensions.

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US, Canada working on deal to ease steel, auto tariffs, sources say

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