ClaimMechanism
US tariffs spare raw resources and hit processed goods. Energy was taxed at 10% or exempt in every round, the potash rate was cut to 10%, and the 2026 Section 338 tariffs exempt energy, potash, critical minerals and fish, while steel, aluminum, copper, autos and lumber took the heaviest tariffs.
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The evidence it rests on
Supports (5)
- Executive Order 14193 imposes a 25% tariff on Canadian goods and 10% on Canadian energy, citing "the failure of Canada to do more" on drugs
The first tariff order already set Canadian energy at 10%, against 25% for other Canadian goods.
Documented by: FactCheck.org, “Illegal immigration and fentanyl at the US northern and southwest borders” (external site), . and 3 more
- Executive Order 14231 exempts USMCA-compliant Canadian goods from the fentanyl tariffs from 7 March and cuts the rate on Canadian potash to 10%
On 6 March 2025 the US cut its tariff on Canadian potash from 25% to 10%, the rate applied to energy.
Documented by: The White House, “Amendment to Duties to Address the Flow of Illicit Drugs Across Our Northern Border (Executive Order 14231)” (external site), . and 4 more
- Three Section 338 proclamations impose 50% tariffs on about US$20B of Canadian goods, including USMCA-compliant goods: the first known use of Section 338 to impose tariffs
Section 338 hits ~US$20B, mostly autos, with resources exempt.
Documented by: The White House, “Fact Sheet: President Donald J. Trump Imposes Additional Tariffs on Canada” (external site), . and 5 more
- US Section 232 tariffs on steel and aluminum double from 25% to 50% on 4 June 2025 for all countries except the UK
Processed metals (steel, aluminum and their derivative products) went to a 50% tariff, Canada included.
Documented by: Federal Register (Executive Office of the President), “Proclamation 10947: Adjusting Imports of Aluminum and Steel Into the United States” (external site), . and 1 more
- Quebec copper wire exports shift away from the US after the 50% copper tariff: 99.3% US-bound in Jan-Jul 2025, 8.6% in Jan-Jul 2026
Copper wire, a processed product, took the 50% copper tariff while copper cathodes outside it stayed 99% US-bound; Quebec's wire exports left the US market.
Documented by: Federal Register (Executive Office of the President), “Proclamation 10962: Adjusting Imports of Copper Into the United States” (external site), . and 1 more
Complicates (3)
- Trump threatens 'very severe tariffs' on Canadian fertilizer if needed
Threat to tariff Canadian fertilizer (not carried out).
Documented by: 980 CJME, “Trump looking at 'very severe tariffs' on fertilizer, affecting Sask. potash industry” (external site), . and 1 more
- Proclamation 11032: some aluminum and steel derivatives cut to 25%; USMCA-qualifying Canadian derivatives taxed on non-US content only (15% floor); primary aluminum stays at 50%
A 2026 proclamation cuts some aluminum and steel derivatives to 25%, and Canadian ones that qualify under USMCA pay only on their non-US content, while primary aluminum stays at 50%: here the processed good is spared more than the raw metal.
Documented by: Federal Register (91 FR 34087), “Proclamation 11032: Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States” (external site), .
- The 50% Section 338 tariffs take in Canadian plywood, MDF, particle board, mouldings, doors and pulpwood; softwood lumber is spared
The Section 338 tariffs hit processed wood (plywood, MDF, doors) and spare softwood lumber, which is already under Section 232; but a law-firm reading of the annex also lists pulpwood, a raw input, so raw goods were not spared across the board.
Documented by: The White House, “Imposing Additional Duties to Offset Canadian Discrimination Against the Commerce of the United States with Respect to Motor Vehicles” (external site), . and 2 more
Context (1)
- US Section 232 tariffs on steel, aluminum and copper begin to apply to the full value of imported articles and their derivatives, at rates of 10% to 50%
From 6 April 2026 the US metals tariffs apply to the full value of steel, aluminum and copper products and their derivatives, not only their metal content: a heavier hit on processed metal goods.
Documented by: The White House, “Strengthening Actions Taken to Adjust Imports of Aluminum, Steel, and Copper Into the United States” (external site), . and 2 more
Claims are weighed by the evidence under them, actions first. Method.