Effective Sept 8, 2026: Canada applies 15 / 25 / 50% counter-tariffs to 629 tariff lines of U.S.-origin goods, matching U.S. Section 338 & 232 rates dollar for dollar.
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HS chapters 68, 70

Building materials: 2 tariff lines on Canada's September 8 counter-tariff list

2 at 50%. Applies to U.S.-origin goods only, on top of regular duty, from 12:01 a.m. September 8, 2026.

Get non-U.S. alternatives for these lines   Search this chapter

Every line in this sector

Tariff itemDescriptionSurtax
6809.11.00Boards, sheets, panels, tiles and similar articles, not ornamented: Faced or reinforced with paper or paperboard only
Articles of plaster or of compositions based on plaster.
50%
7010.90.00Other
Carboys, bottles, flasks, jars, pots, phials, ampoules and other containers, of glass, of a kind used for the conveyance or packing of goods; preserving jars of glass; stoppers, lids and other closures, of glass.
50%

Source: Department of Finance Canada, list updated August 26, 2026. Indicative descriptions; read with the Schedule to the Customs Tariff.

Where the alternatives usually are

For building materials, replacement supply typically comes from CETA (EU) and CPTPP (Japan, Vietnam, Australia, Mexico) partners, Korea under CKFTA, and Canadian producers where capacity exists. The diagnostic prices each option at landed cost, including preferential duty, freight and certification.

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