Union leaders say the $2.5 billion investment will solidify the future for more than 3,000 workers at the Mon Valley Works ...

Nippon Steel Corp. will construct a new mill in the United States through U.S. Steel, its subsidiary, as it seeks to close ...

Nippon Steel Corp. has had to take nerves of steel in its takeover plan for U.S. Steel, which has run into fierce opposition ...

Pittsburgh-based United States Steel Corp. said it would spend $475 million to add to its existing tubular-steel plant in Fairfield, Alabama, one of the many billion-dollar investment projects the ...