The One-Way Door: Why Carbon Steelmakers Divest Specialty Steel

Independent analysis of whether carbon and specialty steelmaking belong under one roof. Traces roughly thirty ownership changes across nine countries and five decades, finding that carbon steel majors divest specialty businesses about three times as often as they acquire them — and that only one clean reversal appears in the record. Sets out the technical divergence from melting to rolling, shows how access to capital markets decides whether separation comes through spin-off, bankruptcy or state-directed consolidation, and examines the defence exception, where governments override the market. Closes with practical lessons for boards, investors and governments.