Alton Steel
Alton Steel was a steel manufacturer, based in Alton, Illinois, United States. The company was a reincarnation of the Laclede Steel Company, which halted operations of its mill in 1998. The company entered bankruptcy in 2001, but emerged in 2003 with the new name and new owners. The reborn company employed over 260 hourly and 100 salaried workers in the area. The company announced on January 26, 2026 that they would cease operations, laying off 253 workers.