In the last five years, U.S. Steel has paid more than $10 million in penalties for violations of the Clean Air Act at ...

The U.S. Chemical Safety board is investigating an Aug. 11 explosion that killed two people and injured 10 at a U.S. Steel ...

U.S. Steel Clairton Coke Works' current limited coke-making capacity due to Monday's explosion is prompting concerns.

The deadly explosion at Clairton Coke Works near Pittsburgh occurred when a gas valve was flushed before planned maintenance, ...

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant that ...

HARRISBURG, Pa. (AP) — The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate ...

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation is in its early stages.

U.S. Steel says it believes a gas valve failure led to the explosion Monday morning at its Clairton Coke Works, in which two ...

U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing ...

U.S. Steel released preliminary findings about the potential cause of Monday's deadly explosion at U.S. Steel Clairton Coke ...

Explosions at a massive United States Steel mill in Western Pennsylvania left two people dead and at least 10 injured, ...

It was about 13 years ago that AK Steel announced the closure of the coke plant in east Ashland. It was approximately 10 years ago that the plant was imploded. AK Steel retirees and former workers who ...