The Mesabi Steel Plant: Trump’s Tariffs in Action

This is an exciting story for the American heartland, and also for America in general.

John F. Di Leo | September 30, 2026

Monday’s news cycle brought an exciting story for both the manufacturing industry and America’s heartland: Mesabi Metallics has announced a new $15-billion steel mill to be built in Iowa, along the Mississippi River. 

With an expectation of being up and running by 2030, the mill will be the largest ever in the United States, being budgeted to reach approximately 10 percent of current American steel production within a couple years of startup.

The statistics shared at the announcement anticipate five or six thousand construction jobs for its construction in Iowa; about 1,750 permanent employees at the plant; and a related influx of jobs and activity at the firm’s iron mines in northeast Minnesota, which will supply the lion’s share of raw materials for this state-of-the-art facility. 

That’s a good story: up to 6,000 long-term temporary jobs in construction, and up to 1,750 permanent jobs in the steel industry.  Coming at election time as it does, this would be a shot in the arm if that were all there was to it. 

But there’s much more to this than those simple statistics, because of the Invisible Hand of economic activity.  Most of the benefits of this plant don’t show up in a news story like this, because they can’t be categorized with specific promises and numbers — but if we watch this space for the next few years, we will........

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