25,000 USW Steelworkers at Cleveland-Cliffs and U.S. Steel Face September 1 Contract Expiration
Why It Matters for Steel Warehouse
This is a **Tier 1 supply risk** event. Cleveland-Cliffs Indiana Harbor and Burns Harbor are primary HRC and substrate suppliers for Steel Warehouse's processing operations. A work stoppage — even a short one — at these facilities would tighten flat-rolled supply for the entire Midwest service center market. Steel Warehouse's procurement team should: (1) monitor bargaining progress beginning now; (2) build a supply disruption contingency plan identifying alternative mill sources (Nucor, Steel Dynamics, NLMK) if CLF output is reduced; (3) consider strategic inventory positioning in the August/early September window if negotiations appear contentious.First reported: 2026-03-08 Section: J — Labor & Workforce
The four-year Basic Labor Agreements (BLA) between the United Steelworkers (USW) and both Cleveland-Cliffs Steel LLC and U.S. Steel expire at 11:59 PM on September 1, 2026. The contracts cover approximately 25,000 USW-represented workers combined — roughly 12,000 at Cleveland-Cliffs across 13 operating locations, plus approximately 13,000 at U.S. Steel (now owned by Nippon Steel). These represent the most significant Big Steel labor negotiations in years, and under the contracts' terms, if no agreement is reached by the expiration date, either party may resort to strike or lockout.
The 2022 CLF contract — the baseline being renegotiated — featured historic wage improvements of more than 20% over four years, bolstered healthcare provisions without cost increases to workers, improved vacation and holiday benefits, extended parental and domestic violence leave, and CLF's commitment to invest $4 billion in USW-represented facilities. The 2026 negotiations will open against a backdrop of significantly higher steel prices (HRC above $1,000/ton), CLF's 2025 net loss of $1.7B, and Nippon Steel's new ownership of U.S. Steel — making the U.S. Steel side particularly complex.
Labor Notes has flagged this as one of the "Big Contract Fights Coming in 2026." The USW's 2025 Officers' Report section on Steel Bargaining confirms the union is actively preparing. Key union priorities expected to include: maintaining the 20%+ wage gains from 2022 and seeking additional increases given current pricing environment; protecting domestic production jobs against offshoring; securing commitments related to Nippon Steel's investment pledges at U.S. Steel; and addressing healthcare and retirement security.
Negotiations typically begin 6–12 months before expiration, meaning bargaining is likely already underway or beginning imminently (March–April 2026). A strike by 25,000 steel workers at CLF and U.S. Steel would dramatically curtail HRC and flat-rolled supply from Indiana Harbor, Burns Harbor, Gary Works, Mon Valley, and other major integrated mill locations — creating immediate supply disruption for Steel Warehouse and other Midwest flat-rolled service centers.
Sources
- One Battle After Another: Big Contract Fights Coming in 2026 — Labor Notes
- Cleveland-Cliffs Announces Ratification of New Labor Agreement with USW — Cleveland-Cliffs IR
- Steel Bargaining — United Steelworkers 2025 Officers Report
- USW Ratifies Contract with Cleveland-Cliffs — Inside INdiana Business
Update — 2026-03-08
Initial entry — story first created. Contracts expire September 1, 2026. Negotiations likely beginning March–April 2026. Flag as Tier 1 supply chain risk. Begin contingency planning now.