Rising US tariffs push Canada’s aluminium industry to a crossroads
For more than a century, Quebec’s Saguenay–Lac-St-Jean region has been more than just a hub of aluminium production — it’s the soul of Canada’s aluminium industry. The gleaming metal shaped its economy, built its communities, and earned the area its proud nickname: “aluminium valley.” But the deep cross-border ties that sustained it for over a century are now under strain, as Washington’s escalating tariffs threaten to unravel one of North America’s most enduring industrial partnerships.
An alliance tested by tariffs
The trade rift began in March 2025, when US, invoking national security issue under Section 232 of the Trade Expansion Act, imposed 25 per cent tariffs on Canadian aluminium and steel. By June, those tariffs were doubled to 50 per cent.
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