• Nippon Steel's U.S. Steel unit will invest approximately $3 billion in a new hot strip mill at Mon Valley Works, Pennsylvania.
• The mill at Edgar Thomson Plant will increase annual production capacity from approximately 2,200,000 tons to approximately 3,500,000 tons.
• The project forms part of the parent's committed $11 billion investment plan across U.S. Steel's operations.
• Construction will begin once necessary permits are received, with initial production expected in late 2029.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Nippon Steel Corporation published the original content used to generate this news brief on October 23, 2026, and is solely responsible for the information contained therein.