KOPPERS CO., INC.

TX • Matched across 4 agencies

WHDNLRBOSHASEC
C - Critical Risk
2
WHD Cases
80
NLRB Filings
274
OSHA Inspections

Most recent: OSHA action, Nov 2025

356 enforcement records available

Full risk scoring, violation details, penalties, cross-agency timeline, corporate family tree.

More enforcement data in TX

Data sourced from DOL WHD, OSHA, NLRB, and SEC EDGAR. Entity-resolved across agencies. Updated monthly.