Russian Strikes Reportedly Disable Ukraine’s Three Remaining Large Steelworks

This is a valid forward-looking development because the reported loss of approximately 90% of Ukraine’s remaining large-scale steelmaking capacity could materially affect Ukrainian steel supply, exports, replacement sourcing, and the operations of the affected company. The core claim comes from a September 20 Clash Report post relaying the Financial Times and Metinvest; separate supplied reporting confirms ballistic-missile damage at Zaporizhstal and ArcelorMittal Kryvyi Rih, but does not independently establish that all three plants are fully disabled. The development is therefore described with attribution and a confidence discount, while retaining the operations_infrastructure classification. It is a distinct milestone within existing event 4037 rather than a duplicate. ArcelorMittal (MT) is the only approved stakeholder because it is directly linked to one of the named affected plants; the other listed stakeholder impacts are more indirect or depend on broader maritime, insurance, or substitution assumptions.