---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-280510"
form_type: "8-K"
ticker: "KOP"
cik: "0001315257"
company_name: "Koppers Holdings Inc."
filed_at: "2024-12-17T23:59:59+00:00"
generated_at: "2026-05-29T02:16:57.184346+00:00"
event_type: "debt"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Koppers reduces interest rate margin on $494.5M term loan by 50 bps

## Summary
- Amendment No. 5 lowers Term Loan B margin from 3.00% to 2.50% for SOFR loans and from 2.00% to 1.50% for base rate loans.
- Prepayments within first six months after closing are subject to a 1.00% premium on principal prepaid.
- All other material terms, conditions, and covenants under the Credit Agreement remain unchanged.

## SEC filing metadata
- accession: 0001193125-24-280510
- form_type: 8-K
- ticker: KOP
- cik: 0001315257
- company_name: Koppers Holdings Inc.
- filed_at: 2024-12-17T23:59:59+00:00
- event_type: debt
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1315257/000119312524280510/0001193125-24-280510-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1315257/000119312524280510/d914413d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-280510
- JSON: https://secwatch.observer/filing/0001193125-24-280510.json
- Plain text: https://secwatch.observer/filing/0001193125-24-280510.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.