The United States Is Losing Its Grip on Canada's Steel Market

Why It Matters

The erosion of U.S. market share threatens North American supply chains and raises competitive pressure from subsidised Chinese steel, challenging Canada’s industrial security and pricing stability.

Key Takeaways

• U.S. steel shipments down 700,000 tonnes in 2025
• U.S. import share fell to 36% overall
• Long‑product share dropped from 30% to 14%
• China’s long‑product share rose to 9.6%
• Canada’s tariffs and quotas reshaping steel market

Pulse Analysis

The 2024‑25 trade war between the United States and its trading partners has fundamentally altered the North American steel landscape. After President Trump imposed tariffs on foreign steel, Canada responded with retaliatory duties, quotas, and a 25% tariff on Chinese imports. These measures, combined with the Canada‑U.S.‑Mexico Agreement’s preferential treatment for domestically‑sourced steel, have curtailed cross‑border flows, driving a 16% decline in total Canadian steel imports and prompting manufacturers to reassess sourcing strategies.

Data from the Canadian Steel Producers Association and Global Affairs Canada reveal a pronounced shift in product‑category dynamics. While U.S. flat‑steel—used in automotive manufacturing—remains dominant, its share fell from 55% to an average of 45% after the first quarter. More striking is the collapse of U.S. presence in long‑product and pipe‑tube segments, where market share slid from 30% to 14% and from 22% to 10% respectively. In contrast, Chinese steel, despite facing a 25% tariff and anti‑dumping duties, expanded its foothold in long products, climbing to 9.6% of imports, indicating that subsidies and strategic pricing can offset policy barriers.

The evolving trade pattern carries significant implications for Canadian industry and policy. Reduced reliance on U.S. steel may increase exposure to price volatility and supply‑chain disruptions, especially in construction where long products are critical. Meanwhile, the rise of Chinese steel—often priced below market cost—poses competitive challenges for domestic producers and raises national‑security concerns tied to defence‑grade materials. Policymakers must balance protectionist tools with the need for reliable, affordable inputs, while industry leaders should diversify suppliers and invest in value‑added processing to mitigate the long‑term impact of these trade tensions.