Koppers Holdings Inc.
Lumber & Wood Products (No Furniture)
SEC reporting entityCIK 0001315257KOP
Source: SEC EDGAR submissions · Retrieved Oct 11, 2026 · Report a correction or privacy concern
Company identity
- Legal name
- Koppers Holdings Inc.
- Incorporation jurisdiction
- Pennsylvania
- Business address locality
- PITTSBURGH, PA
- Industry classification
- 2400 — Lumber & Wood Products (No Furniture)
- Exchange(s)
- NYSE
- State registration status
- Not verified from the state registry
Published identifiers
- SEC Central Index Key (CIK)
- 0001315257
- Federal EIN, as reported to the SEC
- 20-1878963
- State registration number
- Not collected — consult the official registry
- Legal Entity Identifier (LEI)
- Not collected
An EIN displayed here is not an IRS validation. Learn what each identifier means.
Recent public filings
- 10-QAug 6, 2026View on SEC
- 8-KAug 6, 2026View on SEC
- 8-KMay 11, 2026View on SEC
- 10-QMay 8, 2026View on SEC
- 8-KMay 8, 2026View on SEC
Financial statements may be included in these filings. This profile does not calculate revenue, profit or a credit score.
Source and limitations
Collected from SEC EDGAR submissions on Oct 11, 2026. SEC registration and filing activity do not certify that a business is in good standing, solvent or licensed for a particular activity.
Our collection is selective. For current legal registration status, use the Pennsylvania official authority. No directors’ personal profiles, home street addresses or consumer credit assessments are provided.