Cleveland-Cliffs Plans 500 Cuts at Stelco; Mosaic files WARN for 199
Two Materials-sector workforce reductions were reported Oct. 15–16: Cleveland-Cliffs to cut 500 at Stelco and Mosaic submitted a WARN for 199 jobs.
Cleveland-Cliffs and Mosaic report Materials layoffs (Oct. 15–16, 2026)
Cleveland-Cliffs, Inc. and The Mosaic Company were linked to workforce reductions in the Materials sector during the October 15–16, 2026 reporting window. The notices include a public announcement from Cleveland-Cliffs regarding Stelco operations in Ontario and a WARN filing attributed to Mosaic.
Cleveland-Cliffs, Inc. — Stelco plants in Ontario
Cleveland-Cliffs, Inc. disclosed plans to lay off 500 steelworkers at Stelco facilities in Hamilton and Nanticoke, Ontario, Canada, according to reporting by the Toronto Star, thecanadianpressnews.ca and BNN Bloomberg. The company’s move has prompted parliamentary and federal attention in Canada; federal officials and Conservative MPs have urged enforcement of undertakings tied to Cleveland-Cliffs’ 2024 acquisition of Stelco, per those reports. The coverage states that Cleveland-Cliffs’ CEO Lourenco Goncalves disputed that the acquisition prevents layoffs and said he will defend the decision in court.
The Mosaic Company — WARN filing
Per a WARN filing with state regulators, The Mosaic Company submitted notice affecting 199 employees. The filing is dated 2026-12-08 in the supplied record.
Closing
These two records account for 699 employees affected in the Materials sector during the cited window, with Cleveland-Cliffs’ public reporting and Mosaic’s WARN filing serving as the primary sources for the respective job-cut notices.