Cleveland-Cliffs Cuts 350 Jobs at Stelco; Perstorp Files WARN
Two Materials-sector workforce reductions Oct. 3–4: Cleveland-Cliffs, Inc. idles Stelco finishing in Hamilton, cutting 350 jobs; Perstorp Polyols, Inc. files WARN for 50 jobs.
Cleveland-Cliffs, Inc. and Perstorp Polyols layoffs in Materials sector
Cleveland-Cliffs, Inc. said it will idle Stelco’s Hamilton finishing operations, a move the company announced will result in 350 layoffs in Hamilton, Ontario, Canada, according to Juno News. The company said it plans to shift production to Nanticoke and maintain total Canadian output, while Ottawa has warned Cleveland-Cliffs it may face consequences for alleged breaches of commitments tied to its 2024 acquisition of Stelco, per Juno News.
Juno News reported that CEO Lourenço Gonçalves attributed the idling and workforce reductions to U.S. tariffs and worsening market conditions that disrupted the economics underpinning the acquisition. The company also indicated it may challenge the government’s position in court. The union has disputed aspects of Cleveland-Cliffs’s plans, including the company’s claim that only about 40 Hamilton workers were offered transfers to Nanticoke, per Juno News.
Perstorp Polyols WARN filing
A WARN filing with state regulators shows Perstorp Polyols, Inc. listed a planned workforce reduction affecting 50 employees. The filing was reported by a WARN filing with state regulators.
Summary
Between October 3 and October 4, 2026, Materials layoffs reported include Cleveland-Cliffs, Inc. idling Stelco’s Hamilton finishing operations with 350 job cuts (Juno News) and a WARN notice from Perstorp Polyols, Inc. covering 50 employees. These reports come from a company announcement and a state WARN filing, respectively.