{"filing":{"accession_number":"0001243429-26-000082","cik":"0001243429","ticker":"ARCXF","company_name":"ArcelorMittal","form":"6-K","filing_date":"2026-09-15","report_date":"2026-09-14","primary_document":"arcelormittalform6-kseptem.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1243429/000124342926000082/arcelormittalform6-kseptem.htm"},"events":[{"id":33442,"run_id":30748,"accession_number":"0001243429-26-000082","anchor_item_number":"EX-99.1","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"summary":"This press release discloses a material operational disruption: a ballistic missile strike on ArcelorMittal's Ukrainian steel plant (ArcelorMittal Kryvyi Rih) resulting in two contractor deaths, two employee injuries, and halted primary steel production pending damage assessment and repair. The strike is the second in five weeks and directly impacts the company's operational capacity and financial performance, making it material to investors. While the event involves geopolitical/military factors, the core disclosure is an operational disruption and production halt at a major facility.","company_name":"ArcelorMittal","ticker":"ARCXF","filing_date":"2026-09-15","form":"6-K","submitted_at":null,"items":[{"id":36891,"accession_number":"0001243429-26-000082","item_number":"EX-99.1","item_title":"exhibit99191426.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"This press release discloses a material operational disruption: a ballistic missile strike on ArcelorMittal's Ukrainian steel plant (ArcelorMittal Kryvyi Rih) resulting in two contractor deaths, two employee injuries, and halted primary steel production pending damage assessment and repair. The strike is the second in five weeks and directly impacts the company's operational capacity and financial performance, making it material to investors. While the event involves geopolitical/military factors, the core disclosure is an operational disruption and production halt at a major facility.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-15T10:17:38.542435+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":36891,"accession_number":"0001243429-26-000082","item_number":"EX-99.1","item_title":"exhibit99191426.htm","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.85,"reasoning":"This press release discloses a material operational disruption: a ballistic missile strike on ArcelorMittal's Ukrainian steel plant (ArcelorMittal Kryvyi Rih) resulting in two contractor deaths, two employee injuries, and halted primary steel production pending damage assessment and repair. The strike is the second in five weeks and directly impacts the company's operational capacity and financial performance, making it material to investors. While the event involves geopolitical/military factors, the core disclosure is an operational disruption and production halt at a major facility.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-09-15T10:17:38.542435+00:00","company_name":"ArcelorMittal","ticker":"ARCXF","filing_date":"2026-09-15"}]}