The explosion at U.S. Steel's Pittsburgh-area plant has reignited debate about its future. The plant, part of a long-standing steelmaking tradition in the Mon Valley, faces uncertainty despite recent investments.

That would be good for domestic steel makers’ pricing and profitability. She sees three winners: Steel Dynamics, Commercial Metals, and steel coater AZZ.

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local regulators.

Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside Pittsburgh

A devoted dad has been identified as one of the two steel workers killed from an explosion at a Pennsylvania steel plant on Monday, officials said.

Berkshire purchases often boost stocks. Shares of the steel maker traded as high as $151.32 on Friday, but closed at $145.48, up 0.8%. The S&P 500 fell 0.3%. The Dow Jones Industrial Average rose 0.1%.

The Trump administration on Friday widened the reach of its 50% tariffs on steel and aluminum imports by adding hundreds of derivative products to the list of goods subject to the levies.