ISG Weirton Steel

On April 22, 2004, U.S. federal bankruptcy Judge L. Edward Friend II ruled that ISG could purchase Weirton Steel.

On February 15, 2024, Cleveland-Cliffs announced that it would shut down the Weirton tinworks on April 16th, with CEO Lourenco Goncalves stating that the United States International Trade Commission overturning an earlier Department of Commerce ruling allowing for higher tariffs on tinplate imports rendered the facility unprofitable to operate.

Senator Joe Manchin declared the ITC turned "a blind eye to nearly 1,000 hard-working employees," and that "Cleveland-Cliffs’ closure is an absolute injustice not only to American workers, but to the very principle of fair competition, and it will undoubtedly weaken our economic and national security.

"[2] Located in Weirton, West Virginia, the integrated steel mill had four blast furnaces (1919, 1926, 1941 and 1952), an open-hearth shop (1920) and a bessemer converter (1936).

In May 2023, Form Energy began building a manufacturing facility producing iron-air batteries for electrical storage at the Weirton mill site.