Algoma Steel Group Inc. ASTL

What this company does

Algoma is a producer of hot and cold rolled steel products, including coiled sheet and plate, located on the Great Lakes in Sault Ste. Marie, Ontario, Canada. It supplies customers primarily in the automotive, construction, energy, defense and manufacturing sectors. As of December 31, 2025, the Company had an estimated annual liquid steel production capacity of approximately 2.8 million tons. As of December 31, 2025, the Company had 2,400 full-time employees, of which approximately 95 percent were represented by two locals of the United Steelworkers Unions under two collective bargaining agreements expiring July 31, 2027. It sells steel products to a base of approximately 235 customers across multiple sectors in North America, with no single customer accounting for more than 10 percent of revenues. Sheet steel products represented approximately 77 percent of the Company's total steel shipment volumes for the twelve-month period ended December 31, 2025. Plate steel products represented approximately 23 percent of its total steel shipment volumes in the same period. On October 19, 2021, Algoma completed a business combination with Legato, a special purpose acquisition company, and its common shares became listed on the TSX and Nasdaq.

Written from the business description in Algoma Steel Group Inc.'s annual report to the U.S. Securities and Exchange Commission, filed 12 March 2026. Every sentence was checked against that document before publication.