Canada’s steel industry is facing a growing battle for survival as American tariffs, shrinking export opportunities and mounting competition from imported steel put thousands of Ontario manufacturing jobs under pressure.
The United Steelworkers union is urging Prime Minister Mark Carney’s government to tighten restrictions on American steel imports, warning that existing protections are not doing enough to prevent further job losses. The demand comes after major workforce reductions at Stelco and Algoma Steel, two companies deeply connected to Ontario’s industrial economy.
With U.S. tariffs reaching 50% on many Canadian steel products and Ontario’s steel exports to the United States falling sharply, the dispute is becoming about more than international trade. It is raising difficult questions about Canada’s industrial independence, the future of manufacturing communities and whether government intervention can protect an industry that has helped build the country for generations.
Steelworkers Call for Stronger Protection Against American Imports
The United Steelworkers delivered its latest warning on November 5, 2026, responding to the federal budget with a demand for stronger measures to protect existing Canadian jobs. Although the union welcomed investments in forestry, critical minerals and industrial development, it argued that government spending on future industries cannot compensate for losing manufacturing capacity that already exists. The union specifically called for Ottawa to use its tariff-rate quota system to better control American steel imports, pointing to recent Stelco layoffs as evidence that current protections remain insufficient.
The demand reflects a growing concern that Canadian producers are being squeezed from two directions. American tariffs have made it considerably more expensive for Canadian steelmakers to serve their traditional U.S. customers, while imported products continue competing for sales within Canada. For workers in Hamilton and Sault Ste. Marie, that combination threatens more than company profits. It raises questions about whether experienced employees will retain their jobs and whether younger generations will find the same industrial opportunities that supported their families for decades.
Trump’s 50% Steel Tariffs Have Severely Damaged Canadian Exports
The current crisis intensified in June 2025, when U.S. President Donald Trump increased tariffs on imported steel from 25% to 50%. The higher duties significantly weakened Canadian producers’ competitiveness in their largest export market. Before the trade dispute, more than 90% of Canada’s steel exports went to the United States, according to federal government figures for 2024. That dependence meant Canadian mills had limited room to absorb such a dramatic change without cutting costs, finding alternative customers or reconsidering production.
The financial impact has been substantial. Ontario’s 2026 Fall Economic Statement reported that steel-product exports to the United States totalled $4.1 billion during the first eight months of 2026, compared with $8.4 billion over the corresponding period in 2024. That represents a 50.6% decline. The Bank of Canada has also identified steel among the industries most severely affected by American trade restrictions. While Canadian demand and government measures have helped cushion some losses, replacing billions of dollars in established cross-border business remains an enormous challenge, particularly for companies whose equipment, products and supply chains were designed around the North American market.
Stelco Layoffs Put Hamilton’s Steelmaking Future Under Pressure
The consequences have become particularly visible in Hamilton, where Stelco’s American parent company, Cleveland-Cliffs, announced plans in September 2026 to eliminate up to 500 positions across its Hamilton and Nanticoke operations. By late October, 175 Hamilton workers had already been temporarily laid off. The company moved to idle its Hamilton finishing operations and concentrate production at its Lake Erie Works facility. Cleveland-Cliffs cited weak demand, international competition and the difficult trading environment, arguing that the changes were necessary to protect the business over the longer term.
However, the dispute has developed into a confrontation over corporate accountability. Ottawa has questioned whether Cleveland-Cliffs is honouring employment commitments made when it acquired Stelco in 2024, while the company insists it has complied with all 34 undertakings associated with the purchase. United Steelworkers national director Marty Warren has publicly challenged the company’s position. For affected employees, the disagreement creates another layer of uncertainty. Even where employment may eventually resume or transfers are offered, workers must make immediate decisions about household finances, transportation and their futures in an industry undergoing rapid change.
Algoma Steel’s Workforce Reductions Show the Crisis Extends Beyond Hamilton
In Sault Ste. Marie, Algoma Steel has faced an equally difficult adjustment. The company issued approximately 1,000 layoff notices in December 2025, with workforce reductions beginning in phases in March 2026. The decision accompanied an accelerated transition away from traditional blast-furnace and coke-making operations toward electric arc furnace production. Although some workforce reductions were anticipated as part of the modernization process, union representatives and company officials acknowledged that American tariffs accelerated the timetable. The changes have placed considerable pressure on employees and a northern Ontario community where steel manufacturing remains an important economic anchor.
Algoma’s financial results illustrate the extent of that disruption. Revenue fell to $249.4 million in the third quarter of 2026 from $523.9 million a year earlier, reflecting both its production transition and difficult trading conditions. U.S.-bound shipments represented just 24% of total steel shipments, compared with 50% in the corresponding quarter of 2025. The company is now concentrating on supplying Canadian infrastructure, construction and defence markets, particularly through higher-value steel plate. That strategy offers potential for recovery, but it does not eliminate the immediate economic consequences for workers whose positions have disappeared.
Canada’s Existing Import Rules Leave a Gap the Union Wants Addressed
Canada has already introduced substantial measures designed to prevent foreign steel from overwhelming domestic producers. Under the tariff-rate quota system established for certain imports, countries without a free trade agreement face tariff-free quota levels equivalent to 20% of their 2024 shipments, while eligible free-trade partners face a 75% threshold. Imports above those limits are subject to a 50% surtax. The restrictions are designed to discourage trade diversion, particularly when steel previously destined for the United States is redirected into the Canadian marketplace because of American trade barriers.
However, the existing quota framework excludes steel originating in the United States and Mexico. Canada has separately imposed counter-tariffs of 25% or 50% on specified American steel and aluminum products since September 8, 2026, with exemptions and relief provisions applying in certain circumstances. The Steelworkers argue that these measures should go further by bringing American imports under stronger quota controls. Such a change would not necessarily prohibit U.S. steel from entering Canada; tariff-rate quotas generally allow additional imports at a higher duty. Nevertheless, expanding the system would represent a significant policy shift requiring Ottawa to balance domestic industry protection against the needs of manufacturers relying on cross-border steel supplies.
Canada’s Domestic Steel Market Offers Hope, but Imports Remain a Major Challenge
Despite the disruption, Canadian steelmakers are finding some opportunities closer to home. According to figures compiled by the United Steelworkers and reported by Reuters in October 2026, domestically produced steel accounted for 51% of Canadian steel consumption in 2025, up from 41% in 2024. That represents a meaningful shift toward Canadian suppliers, although imported steel still supplied nearly half the domestic market. Prime Minister Carney has also highlighted Canada’s continued reliance on more than 6.5 million tonnes of imported steel annually, arguing that domestic producers need to become better equipped to meet Canadian demand.
The challenge is complicated by global overproduction. The Organisation for Economic Co-operation and Development projects that worldwide excess steelmaking capacity could reach 745 million tonnes by 2028, putting further pressure on prices and industrial profitability. For Canadian producers, this creates a difficult commercial environment, particularly when foreign suppliers can offer lower prices. However, not every imported product has an equivalent Canadian substitute. Some specialized grades and manufactured products require capabilities that domestic facilities do not yet possess. Protecting Canadian jobs therefore involves more than restricting imports; it also requires expanding the range of steel Canadian manufacturers can produce competitively.
Ottawa and Ontario Commit More Than $5 Billion to Strengthen Steel Production
The federal and Ontario governments have responded with a major industrial investment program intended to reduce the sector’s dependence on American customers. On October 21, 2026, Prime Minister Mark Carney and Ontario Premier Doug Ford announced a broader $8.7-billion package supporting strategic industries, including a dedicated Joint Steel Action Fund. The steel initiative includes five-year commitments of $3.55 billion from Ottawa and $1.67 billion from Ontario, bringing the combined funding to approximately $5.22 billion. The money is intended to support modernization, new production capabilities, export diversification and greater participation in Canadian infrastructure and defence projects.
The strategy also emphasizes purchasing Canadian-made materials wherever practical. Federal and provincial procurement policies are being used to strengthen domestic demand, while the Canada Border Services Agency is expected to increase monitoring and enforcement against unfairly traded steel. There are already examples of manufacturers expanding their Canadian operations. In May 2026, Ontario announced support for Tenaris’s $306-million investment in Sault Ste. Marie, a project expected to create up to 200 jobs and increase manufacturing output. These initiatives could generate opportunities for domestic producers, but the results will depend on how quickly investments become operating capacity and whether Canadian businesses can secure reliable, competitively priced steel.
Ontario’s Manufacturing Supply Chain Faces Wider Economic Consequences
The steel industry’s difficulties extend well beyond the mills themselves. Ontario’s 2026 Fall Economic Statement identified more than 16,000 people working directly in the province’s steel sector, with thousands more jobs supported throughout its supply chains. Steel is essential to automotive manufacturing, industrial machinery, construction materials and numerous other products. When manufacturers experience weaker export demand, they often purchase less steel, creating additional pressure on domestic producers. Alan Arcand, chief economist at Canadian Manufacturers and Exporters, has described how the consequences of tariffs spread through interconnected production networks, affecting businesses that may not directly export steel themselves.
At the same time, imposing additional restrictions requires careful consideration of manufacturers’ needs. Canada’s 2026 federal budget maintains tariff relief for eligible American steel used in automotive and aerospace manufacturing, along with hundreds of products unavailable from Canadian suppliers. These exemptions recognize that domestic steelmaking capacity cannot immediately replace every specialized import. Excessively broad restrictions could raise production costs for Canadian businesses already struggling with trade uncertainty. The challenge for policymakers is to protect domestic steelmaking without making Canadian-made vehicles, equipment and other manufactured goods less competitive. A successful industrial strategy must therefore strengthen both steel producers and the industries that purchase their products.
Steelworkers Say a Lasting Solution Must Protect Jobs and Restore Trade Stability
Although stronger import restrictions are central to the latest demands, the United Steelworkers have also emphasized the importance of resolving the broader Canada-U.S. trade dispute. In September 2026, USW International President Roxanne Brown urged both governments to resume constructive negotiations, arguing that workers on both sides of the border were suffering from the conflict. More recently, on November 3, President Trump suggested a bilateral trade agreement was approaching, while Prime Minister Carney acknowledged progress but stressed that negotiations remained unfinished. A meaningful reduction in American steel tariffs could restore important commercial opportunities that Canadian import restrictions alone cannot replace.
The union is also pressing Ottawa to strengthen Employment Insurance, improve Work-Sharing arrangements and protect collective bargaining rights, including concerns about provisions in Bill C-39. The federal budget outlines billions of dollars in worker assistance, retraining and employment-retention measures, but their effectiveness will ultimately be measured by outcomes in affected communities. For Ontario steelworkers, the immediate priorities remain stable employment, sustainable production and opportunities for the next generation. Canada’s challenge is to preserve its existing industrial workforce while building a more competitive steel sector that can survive future trade disruptions without repeatedly placing thousands of families in economic uncertainty.
