Hostess Brands says it is going out of business, closing plants that make Twinkies and Wonder Bread and laying off all of its 18,500 workers.
The Irving, Texas, company says a nationwide worker strike crippled its ability to make and deliver its products at several locations.
Hostess had warned employees that it would file a motion in U.S. Bankruptcy Court to unwind its business and sell assets if plant operations didn't return to normal levels by Thursday evening.
Hostess posted a statement on a corporate Web site Friday, saying "The Company determined on the night of Nov. 15 that an insufficient number of employees had returned to work to enable the restoration of normal operations."
The company also said "The wind down means the closure of 33 bakeries, 565 distribution centers, approximately 5,500 delivery routes and 570 bakery outlet stores throughout the United States."
The privately held company filed for Chapter 11 protection in January, its second trip through bankruptcy court in less than a decade. The company cited increasing pension and medical costs for employees as one of the drivers behind its latest filing. Hostess had argued that workers must make concessions for it to exit bankruptcy and improve its financial position