U.S. Steel to build $3 billion hot strip mill at Mon Valley Works in Pennsylvania

U.S. Steel announced a nearly $3 billion investment to build a new hot strip mill at its Mon Valley Works – Edgar Thomson Plant in Braddock, Pennsylvania. The project will increase annual production capacity from 2.2 million tons to 3.5 million tons, with production expected to ramp up in late 2029.

“U.S. Steel will invest nearly $3 billion in a new hot strip mill at its Mon Valley Works – Edgar Thomson Plant in Braddock, Pennsylvania, the company said Thursday.”civmetrics.com

• 1 source
• civmetrics.comU.S. Steel to Build a $3 Billion Hot Strip Mill in Pennsylvania, Generate $58 Million in Tax Revenue - CivMetricsCivMetrics StaffNov 4, 2026

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