{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-087681","form_type":"8-K","ticker":"KOP","cik":"0001315257","company_name":"Koppers Holdings Inc.","filed_at":"2025-06-18T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.884170+00:00","generated_at":"2026-05-19T02:36:06.096690+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Koppers extends $800M revolver maturity to 2030, eases leverage covenant","bullets":["Maturity extended to June 17, 2030 (or 91 days before term loan maturity).","Net leverage covenant fixed at 4.75x through life; step-down to 4.50x removed.","10 bps credit spread adjustment on SOFR loans eliminated; margin grid adjusted.","All other material terms and covenants of the Revolving Facility unchanged.","CFO cites strengthened capital position, lower borrowing costs, and bank confidence."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-087681","json":"https://secwatch.observer/filing/0000950170-25-087681.json","markdown":"https://secwatch.observer/filing/0000950170-25-087681.md","text":"https://secwatch.observer/filing/0000950170-25-087681.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1315257/000095017025087681/0000950170-25-087681-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1315257/000095017025087681/kop-20250617.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T02:36:06.096690+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}