---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-058530"
form_type: "8-K"
ticker: "KOP"
cik: "0001315257"
company_name: "Koppers Holdings Inc."
filed_at: "2023-11-03T23:59:59+00:00"
generated_at: "2026-06-08T22:07:27.877354+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Koppers Q3 net income $26.3M, record sales $550.4M; adjusted EPS $1.32, reaffirms 2023 outlook

## Summary
- Net income attributable to Koppers $26.3M ($1.22 diluted EPS) vs $19.1M ($0.91) in prior-year quarter.
- Adjusted EPS $1.32 vs $1.19; adjusted EBITDA $70.7M vs $68.8M.
- Sales $550.4M (+2.7% YoY); RUPS and PC segments achieved record quarterly sales and profitability.
- Cash from operations $81.6M, an all-time quarterly high.
- 2023 outlook reaffirmed: adj. EBITDA $253-$257M, adj. EPS $4.35-$4.55.

## SEC filing metadata
- accession: 0000950170-23-058530
- form_type: 8-K
- ticker: KOP
- cik: 0001315257
- company_name: Koppers Holdings Inc.
- filed_at: 2023-11-03T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1315257/000095017023058530/0000950170-23-058530-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1315257/000095017023058530/kop-20231103.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-058530
- JSON: https://secwatch.observer/filing/0000950170-23-058530.json
- Plain text: https://secwatch.observer/filing/0000950170-23-058530.txt

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