The company abruptly closed its Campbell Works and furloughed 5,000 workers on September 19, 1977, a day remembered locally as "Black Monday." The Brier Hill Works and the company's plants in Indiana were sold to Jones and Laughlin Steel, later acquired by Ling-Temco-Vought (LTV), a conglomerate. The Brier Hill Works closed in 1979 as part of a continued wave of steel mill closings that devastated the Youngstown economy. The Brier Hill Works was eventually reopened in 1986 by Cargill Corporation, under the name North Star Steel. In 2002, Cargill sold the operations to recycling minimill Vallourec Group, a French conglomerate. The Indiana Harbor mill continues operating, owned by ArcelorMittal.