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U.S. Steel pledges up to $2.5 billion in upgrades to Mon Valley Works
The plan would preserve about 3,000 jobs and add a $1.9 billion direct reduced iron plant to modernize steelmaking and cut emissions.
On Monday, U.S. Steel announced an investment of up to $2.5 billion to upgrade its Mon Valley Works, centering on a new hot strip mill at the Edgar Thomson plant in Braddock.
Japan-Based Nippon Steel finalized its nearly $15 billion acquisition last year, and this modernization forms part of an $11 billion commitment to upgrade the company's domestic footprint by 2028.
Construction of the new hot strip mill at Edgar Thomson will replace an 87-year-old facility at the Irvin plant in West Mifflin, enabling production of steels the Mon Valley Works "cannot competitively produce."
Pennsylvania stands to gain $1.7 billion in total economic impact, with the project creating nearly 3,200 indirect and induced jobs and generating up to $58 million in state and local tax revenue over three years.
Legal challenges persist as U.S. Steel appealed more than $4 million in fines last week from the Allegheny County Health Department, following a 2025 settlement regarding emissions at Edgar Thomson.