Local environmental groups in Western Pennsylvania say Nippon Steel’s purchase of U.S. Steel should lead to cleaner ...

President Donald Trump spoke at the U.S. Steel plant in West Mifflin on Friday. During the event, Trump announced the tariff on imported steel will double to 50%.

Cleveland-Cliffs Inc. on Monday announced it would open a state-of-the-art plant to build electrical distribution transformers at an idled steel plant in Weirton, West Virginia.

President Donald Trump was joined on stage by Pittsburgh Steelers players during his speech at the U.S. Steel plant in West Mifflin, Pennsylvania, Friday. Steelers quarterback Mason Rudolph ...

Pittsburgh turned him down, just as Pittsburgh society had been snubbing him for years. He went then to a 40-year-old Basel art dealer named Ernst Beyeler, with whom he had long been trading pictures.

WEST MIFFLIN, Pa. — President Trump told a crowd at the U.S. Steel plant outside of Pittsburgh on Friday that he is doubling tariffs on imported steel, making the announcement as he celebrated a ...

CEO David Burritt said the sale would allow US Steel to invest in updating its older mills in Gary, Ind., and its Mon Valley Works plant near Pittsburgh.

New female in U.S. Steel bald eagle nest lays 1st egg of season 03:23. On this Valentine's Day, there's big drama at a beloved Pittsburgh-area bald eagle nest.

Ultimately, this would lead U.S. Steel to close the Mon Valley plant — the last steelmaking operation in Pittsburgh — and move its headquarters down south to follow the rest of its operations.