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ARTICLE · 30 SEPTEMBER 2026

New Surtaxes Also Affect Steel & Aluminum

Millar Kreklewetz
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Canada's Carney Government has escalated its retaliatory trade measures by increasing surtaxes on US steel and aluminum from 25% to 50%, effective September 8, 2026. These amendments to the United States Surtax Order come as part of a broader response to President Trump's tariffs on Canadian dairy, alcohol, and motor vehicles.

CanadaInternational Law
Robert Kreklewetz
Robert Kreklewetz
David West
David West

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As part of the Canadian Federal Government’s new round of retaliatory surtaxes that came into effect on September 8, 2026, consequential amendments were made to the United States Surtax Order (Steel and Aluminum 2025) (the “Steel/Aluminum Surtax”).

In this Steel Industry Report, we provide the contextual background for these amendments, outline what they are, and highlight some potential opportunities for relief for importers of US steel.

Background

Against the backdrop of ongoing trade negotiations between Canada and the US, President Trump enacted three Presidential Proclamations on July 20, 2026, imposing 50% tariffs on various Canadian dairy, alcohol, and motor vehicle products effective August 19, 2026. On August 18, 2026, President Trump enacted a further Presidential Proclamation postponing the imposition of these new tariffs to August 22, 2026, with a view to striking a trade deal with Canada in light of negotiation progress in the

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