Essar Steel Algoma Inc. and AK Steel Corp. are each facing fines for alleged safety violations and unsafe working conditions that federal agencies say contributed to accidents where individual workers were either killed or injured.

Sault Ste. Marie, Ontario-based Essar Steel Algoma is facing the more serious charges. The Ontario Ministry of Labour has charged the company on five separate counts surrounding the Oct. 30, 2008, death of 58-year-old Rockie Scullino, who was killed at the steel plant when struck by a falling piece of iron that...