The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local regulators. By Billy Witz Reporting from Clairton, Pa. A day after an ...

CLAIRTON, Pa. (AP/WHTM) – One person has died and two are believed to be missing in the explosion at a U.S. Steel plant, Allegheny County emergency services spokesperson Kasey Reigner said. Multiple ...

The freight railroad company BNSF says the Rocky Mountain Steel Mill in Pueblo stopped shipping rails for train tracks this fall. That’s according to a recent legal claim filed by the railroad.

Explosions at a U.S. Steel plant near Pittsburgh on Monday shook the ground, killing one person and sending at least ten others to hospitals, officials said. As of 6:30 p.m. ET, emergency crews ...

Atlas Holdings finalized its acquisition of Pueblo's steel mill, renaming it Rocky Mountain Steel Mills under the newly formed Orion Steel Companies. Doug Matthews, a 33-year veteran of U.S. Steel, ...

A Connecticut-based private-equity company, Atlas Holdings, announced Friday it has signed a "definitive agreement" to acquire Evraz North America which includes Pueblo's Rocky Mountain Steel Mill.