International · September 14, 2026 · 1 min read

Canada Expands Retaliatory Tariffs to Copper Wire, Wood Charcoal

Published September 14, 2026 • Updated September 14, 2026

Reviewed by Gemini historical-backfill QC (95/100)

Ottawa's updated counter-tariff list, effective September 8, responds to the US's 50% tariff on $27.6 billion of Canadian goods.

**Ottawa adds copper wire, wood charcoal** — Canada's Department of Finance published an expanded list of countermeasures, including a 50% tariff on wood charcoal (tariff items 4402.90.10/.90) and copper wire, set to take effect September 8. The list also hits plywood/laminated wood (50%), sawn wood (25%), dairy, paper, and apparel at rates of 15-50%. **$27.6 billion in trade now affected** — the countermeasures respond directly to the US's August 22 move imposing 50% tariffs on $27.6 billion of Canadian goods under Section 338/232 authority. For US importers and exporters in lumber, metals, and food/dairy supply chains, this raises input costs and cross-border pricing risk heading into September.

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