Russia’s latest claims of strikes on Ukrainian steelworks come after a severe contraction in the country’s production. Repeated attacks have left major mills idle, making the prospect of a sustained restart central to how much Ukrainian steel can return to the market.
On 17 October, Russia said it had attacked steel plants, power infrastructure and vessels using the Odesa area. Its defence ministry named ArcelorMittal’s Kryvyi Rih works and an unidentified steel plant in Zaporizhzhia among the targets. Reuters said it could not independently confirm the claims.
The shutdown preceded the latest claims
ArcelorMittal’s own September disclosures show how the disruption had already escalated. On 14 September, the company confirmed that primary steel production at Kryvyi Rih had halted after a missile strike. Other facilities were idle or operating at minimum levels, and the company could not yet estimate the repair time.
By 25 September, its assessment had changed. After four missile strikes in five weeks, ArcelorMittal said it could not safely and sustainably restart operations. It was discussing the plant’s future with the Ukrainian government and concentrating on preserving infrastructure so that a future restart remained possible. There is also a human factor in these assessment: in fact, five people had been killed and 17 injured across those attacks, according to the company.
At an already idle mill, further attacks can lengthen the interruption and raise the cost of bringing production back.
September output shows the scale of the existing loss
Ukraine produced 131,000 tonnes of crude steel in September, down 52.7% from August and 78.5% from September 2025. Figures attributed to industry association Ukrmetalurgprom and reported by Ukrainian news outlets put January–September output at 4.431 million tonnes, down 19.8% year on year.
The much steeper September decline shows how concentrated the recent disruption has become. The nine-month total includes production before the latest shutdowns and therefore gives a less severe picture of current availability. Neither figure, however, measures export deliveries: mills can ship stocks after steelmaking stops, and newly produced steel still has to reach a customer.
Metinvest was also reporting prolonged interruptions before October. In comments reported on 24 September, an executive said its plants remained stopped and described an attempted restart at Zaporizhstal followed by another strike. These earlier stoppages help explain the national production fall. They do not identify the unnamed Zaporizhzhia plant in Russia’s latest account.
Power and shipping can prolong the loss of supply
Steelmaking depends on reliable electricity beyond the melting stage. Pumps, cooling systems, material handling and rolling equipment also need power, so repairing a furnace does not by itself restore finished-steel deliveries. Repeated interruptions can leave a plant with repair expenditure and continuing fixed costs while sales remain limited.
Shipping is a separate constraint. Even if a mill resumes production, disruption at ports or on the routes serving them can prevent that recovery from translating into export availability. Russia’s claims about vessels on 17 October warrant attention, but the reporting reviewed here does not establish a new shipping stoppage or quantify a freight-cost increase.
ArcelorMittal expected an approximately $1 billion non-cash impairment, principally on property, plant and equipment, in its 25 September announcement.
For the steel market, such prolonged outage removes expected Ukrainian tonnes from future delivery periods as well as reducing current output for the domestic market.
