The mill is projected to produce an initial 7.5 million tonnes of steel annually before reaching 10 million tonnes, with operations scheduled to begin in 2030.
The Export-Import Bank will provide up to $10 billion in financing, with iron ore sourced from Mesabi's $2.5 billion mine in Minnesota.
Construction will require between 5,000 and 6,000 workers, followed by roughly 1,700 to 2,000 permanent operational and mining positions.
Commerce Secretary Howard Lutnick stated that the project relies on the administration's 50 percent Section 232 tariffs on foreign steel.
United States President Donald Trump announced on 28 September 2026 that Minnesota-based Mesabi Metallics plans to build a $15 billion steel mill in eastern Iowa. Speaking from the Oval Office alongside company executives and Republican lawmakers, Trump presented the project as the largest steel plant in the history of the United States. Mesabi has not yet specified the exact municipal location in eastern Iowa, though Trump stated that initial construction activity is already under way. The planned facility is designed to produce an initial capacity of 7.5 million tonnes of steel annually, with final output projected to reach 10 million tonnes per year, roughly 10 percent of total US metallurgical output from the prior year. Commercial steel production is scheduled to begin in 2030.
“Using advanced steelmaking technology, the plant will produce some of the highest quality, most affordable steel anywhere in the world.”
The facility will draw iron ore from the Mesabi Iron Range in Minnesota, where Mesabi Metallics invested over $2.5 billion to open the first new iron ore mine in that state in 50 years. Mesabi Metallics is owned by the India-based conglomerate Essar Group. When asked about global procurement, Mesabi Metallics Chairman Rewant Ruia noted that most critical materials will come from domestic suppliers. The Export-Import Bank of the United States will provide up to $10 billion in financing for the project. According to White House officials, the construction phase will generate between 5,000 and 6,000 jobs, followed by 1,700 to 2,000 operational and industrial roles.
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The project connects directly to the administration's broader use of trade tariffs to shelter domestic metal producers from foreign competition. Last year, the White House doubled import tariffs on steel and aluminium to 50 percent under Section 232, measures that also formed part of an ongoing trade dispute with Canada. Administration officials stated that the output could support domestic defense projects in coming years. Commerce Secretary Howard Lutnick credited the tariff regime with enabling the private capital deployment across both facilities.
“These are your 232 tariffs, the steel tariffs at work. Without those tariffs, this mine does not get built, and this steel plant does not get built.”
The federal government also holds a golden share in US Steel, which was acquired by Japan's Nippon Steel in June 2025. That agreement granted the president the authority to appoint a board member to participate in corporate decisions affecting domestic manufacturing capacity.
The announcement arrived with less than 40 days remaining before the 3 November 2026 midterm elections, where economic performance is a central issue for voters. In Iowa, Representative Ashley Hinson is running for the Senate seat vacated by Joni Ernst. Recent polling has shown a divided electorate, with a Marist survey placing Hinson eight points behind Democratic contender Josh Turek, while an Emerson College poll showed her narrowly leading. During the event, Trump also renewed his political dispute with Minnesota Governor Tim Walz, who issued an order in August halting mining permits near the Boundary Waters wilderness area.
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Mesabi Metallics will build a $15 billion steel plant in eastern Iowa backed by up to $10 billion in federal Export-Import Bank financing, with production scheduled for 2030.
AI text based on reports by EL PAÍS, Al Jazeera Online, Reuters and other publishers. Published .