U.S. Steel Giant Says Weak Canadian Demand and Imports Drove Stelco Hamilton Idling as Ottawa Threatens Action

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Stelco’s Hamilton Works has become the centre of a much bigger fight over Canadian steel, foreign ownership and the promises companies make when buying strategically important businesses. U.S.-based Cleveland-Cliffs says weak Canadian demand, lost U.S. sales and persistent steel imports left its Hamilton finishing operations without enough profitable business, forcing an indefinite idle and layoffs affecting hundreds of employees.

The timing has intensified the controversy. Stelco has simultaneously returned to profitability as its hot-rolled steel business improves, while Ottawa argues Cleveland-Cliffs remains bound by employment commitments attached to its 2024 takeover. Industry Minister Mélanie Joly says federal lawyers are examining possible enforcement action, leaving workers caught between a company insisting the market no longer supports the affected lines and a government insisting takeover promises cannot disappear when conditions become difficult.

Hamilton’s Galvanizing Lines Became the Pressure Point

Cleveland-Cliffs’ latest financial results make clear that Stelco’s difficulties are not spread evenly across the business. The American steelmaker reported US$5.6 billion in third-quarter revenue and US$612 million in adjusted EBITDA, calling it the parent company’s strongest quarter in three years. Stelco itself had its strongest quarter since Cleveland-Cliffs acquired it in 2024 and became a positive contributor to EBITDA as Canada’s hot-rolled steel market improved. Yet Cleveland-Cliffs still moved forward with indefinitely idling Hamilton’s galvanizing operations, arguing that value-added sheet steel faces a very different market. CEO Lourenco Goncalves said the affected Galvanneal business represented less than 20% of Stelco’s output.

That distinction helps explain how profitable operations and layoffs can exist at the same company simultaneously. Cleveland-Cliffs says it can maintain Stelco’s total production tonnage by shifting its product mix toward hot-rolled steel, where demand and pricing have strengthened. The company also says approximately 2,000 Canadian jobs remain preserved and that affected employees will be recalled if market conditions improve. For Hamilton workers receiving layoff notices, however, the improvement elsewhere offers limited immediate comfort. Their jobs depend on demand for the particular coated and cold-rolled products made in Hamilton, not simply on whether Stelco as a whole is producing steel profitably.

A Million Tonnes of Market Disappeared From Stelco’s Reach

The numbers Stelco presented to Ottawa illustrate the scale of the market contraction it says triggered the decision. In an October 9 letter from Stelco president Paul Simon to Industry Minister Joly, the company said Canadian exports of cold-rolled and coated steel to the United States had fallen 58% from pre-trade-war levels. It put the decline at approximately 226,000 tonnes in the second quarter of 2026 compared with the average quarterly export volume in 2024. Stelco separately said Canadian demand for the affected products had fallen about 10%, while demand across the traditional markets it serves was down nearly 25%.

Imports are the third part of Stelco’s argument. The company says foreign steel still supplied roughly 45% of Canadian demand for cold-rolled and coated products despite Ottawa’s import restrictions. When weaker Canadian consumption, reduced U.S. exports and imports are combined, Simon estimated that the market available to Hamilton Works had shrunk by more than one million tonnes annually. Stelco described that lost market as roughly twice the plant’s historical yearly production of cold-rolled and coated steel. Those are company-reported calculations rather than an independent finding that every lost tonne would otherwise have gone to Stelco, but they explain why management says continuing to run the affected operations would generate unsustainable losses.

Why Hamilton Is Idling While Lake Erie Keeps Making Steel

Hamilton Works occupies a distinctive place inside Stelco’s production chain. The facility dates to 1905 and became primarily a finishing operation, turning steel into cold-rolled, galvanized and galvannealed sheet used by industries such as automotive manufacturing, agriculture and infrastructure. Stelco describes its 18-storey Z-Line as capable of producing roughly 470,000 tons of coated steel annually. Lake Erie Works in Nanticoke, by contrast, is the company’s main integrated steelmaking operation. Built in 1980, it produces steel from raw materials and includes a hot strip mill, supplying both customers and, historically, material for further processing in Hamilton.

Cleveland-Cliffs is therefore changing the mix of products Stelco sells rather than simply shutting down Canadian steelmaking. The company intends to emphasize the stronger hot-rolled market while idling Hamilton’s cold-rolled and coated operations. Up to 500 employees across Hamilton and Lake Erie operations have been identified as potentially affected. United Steelworkers Local 1005 estimated roughly 330 Hamilton workers would be caught in the staged layoffs, with further reductions involving other employees and Lake Erie operations. The phased shutdown has added another human dimension: workers have continued handling the practical work needed to wind down equipment while knowing their own shifts may disappear as the finishing lines are taken out of service.

Ottawa Says the Takeover Commitments Still Bind Cleveland-Cliffs

The dispute is especially sensitive because Cleveland-Cliffs did not acquire Stelco without conditions. The 2024 transaction carried an announced enterprise value of approximately C$3.4 billion and required federal approval under the Investment Canada Act. Ottawa approved the takeover subject to binding undertakings lasting five years. The publicly disclosed commitments included keeping Stelco’s head office in Hamilton, maintaining at least the same number of unionized employees and the vast majority of non-unionized workers, honouring collective agreements and pension obligations, and making significant capital and research spending. Cleveland-Cliffs completed the acquisition on November 1, 2024.

Joly’s position is that changing market conditions do not automatically cancel those commitments. In early October, she gave the company five business days to provide a plan demonstrating how it would comply with the undertakings. Cleveland-Cliffs and Stelco responded that the layoffs do not constitute a breach, setting up a dispute over how the employment obligations apply when workers are indefinitely laid off rather than permanently terminated. The complete undertaking agreement is not public, which limits what outsiders can conclude definitively about either side’s legal position. By October 20, Joly said Ottawa had retained lawyers to advise it and was also working with the union as the government considered its next move.

Cleveland-Cliffs Says Cash Cannot Fix a Missing Market

Cleveland-Cliffs has repeatedly argued that subsidies are not the answer to Hamilton’s problem. Goncalves said that “no amount of money” offered by government would make sense if Stelco continued producing a product for which there were not enough buyers. He has argued that Canada’s galvanized steel market cannot simultaneously sustain Stelco, Hamilton rival ArcelorMittal Dofasco and heavy import volumes at acceptable utilization rates. Earlier in October, he said operating the affected business at roughly 50% to 55% capacity was not an efficient or profitable long-term option.

Instead, Cleveland-Cliffs wants Canada to go further in restricting foreign steel and has promoted what Goncalves calls a “Fortress North America” approach. The concept would pair stronger protection of Canadian and U.S. steel markets from overseas supply with better access for Canadian steel inside the United States. Cleveland-Cliffs says workers could be recalled if a trade arrangement or tighter Canadian import restrictions restored enough demand. Ottawa sees an obvious complication in that defence: Goncalves has publicly supported U.S. Section 232 steel tariffs even though Stelco now cites those trade barriers as a major cause of its lost market. The federal government argues that support makes it harder for the company to characterize the tariffs simply as an unforeseeable event beyond its control.

Canada’s Import Defences Helped Hot-Rolled Steel — but Not Enough for Galvanized

Ottawa has already tightened the door on substantial volumes of foreign steel. Canada introduced tariff-rate quotas in June 2025 and subsequently amended the system several times as concern grew that steel displaced from other markets could be redirected into Canada. Current quota levels for affected non-CUSMA imports are generally set at 20% of 2024 volumes for countries without a free-trade agreement with Canada and 75% for qualifying free-trade partners. Steel imported above those quota limits faces a 50% surtax. In June 2026, Ottawa announced that the regime would be extended into 2027.

Cleveland-Cliffs does not argue that those measures accomplished nothing. In fact, Goncalves has credited the tightened quota system with a rapid improvement in Canadian hot-rolled coil prices and with helping turn Stelco back into a profitable business. The disagreement is over coated steel. Cleveland-Cliffs says galvanized and Galvanneal imports remain sufficiently large to keep Hamilton’s finishing lines uneconomic, making stronger restrictions the “last piece” needed to restart production. Ottawa has to balance that demand against the needs of Canadian companies that consume imported steel, including manufacturers seeking particular grades, prices or supply availability. It is also important to distinguish high import penetration from proven dumping: a large import share demonstrates competitive pressure, but does not by itself establish an unfair-trade violation.

Stelco’s Trouble Comes as Parts of Canadian Steel Start Recovering

Hamilton’s difficulties are unfolding during an uneven recovery elsewhere in Canadian steel. The sector was hit hard after the United States raised its steel tariff to 50% in June 2025. Canada historically sent roughly 90% of its steel exports to the U.S., and shipments south reportedly fell about 60% during 2025. Since then, producers have increasingly looked inward. Industry and union data cited in recent reporting indicate that Canadian-produced steel represented about 51% of steel used domestically in 2025, compared with 41% in 2024, while the share supplied through imports fell.

New industrial activity is helping generate demand, particularly in Western Canada. Mining, energy infrastructure and major data-centre developments have created markets for some categories of steel, while Ottawa has supported producers through financing programs, import controls and its Buy Canadian procurement strategy. Tenaris, for example, has invested hundreds of millions of dollars in expanding Canadian production for domestic energy customers. Yet steel is not a single interchangeable commodity. Stronger demand for pipe, plate or hot-rolled products does not automatically create orders for the thinner coated sheet made in Hamilton. That helps explain why Stelco can be recovering financially at the same time one of its most recognizable Canadian operations is being idled.

The Fight Is Now About Jobs, Enforcement and Who Bears the Trade-War Cost

Ottawa’s options extend beyond public criticism. The Investment Canada Act contains enforcement mechanisms that can ultimately allow a court to order an investor to comply with written undertakings, impose financial penalties or require divestiture of a Canadian business when statutory requirements are met. Joly has publicly said that outcomes including a forced sale of Canadian assets are on the table, and she has also discussed the possibility of more extraordinary government intervention. No final resolution has been announced, while Cleveland-Cliffs continues to insist that the layoffs are temporary and that workers can return if the market for Hamilton’s products becomes viable again.

That leaves three overlapping battles. One is commercial: whether tighter import restrictions or a Canada-U.S. steel arrangement can create enough orders to restart the lines. Another is legal: whether indefinitely laying off employees violates Cleveland-Cliffs’ takeover commitments even if those employees technically remain attached to Stelco. The third is political, because Ottawa must decide how aggressively it is prepared to enforce promises made by a major foreign investor while also dealing with the trade conditions hurting that investor. For hundreds of steelworkers, however, the test is simpler. The decisive development will be whether orders return, the Hamilton lines restart and the workers who spent their careers making Canadian steel are actually called back.

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