Koppers Carbon Materials LLC
Closure · Stickney, Cook County, IL
60
Workers affected
Oct 30, 2026
Notice date
Dec 31, 2026
Effective date
Notice
Employer as filed
Koppers Carbon Materials LLC
Type
Closure
Filed as
Closing
State
Illinois
City
Stickney
County
Cook
ZIP
60650
Address
3900 S. Laramie Ave., Stickney, IL 60650
Industry
Manufacturing
NAICS
335991
Company
Koppers Carbon Materials LLC
Source
Data: WARN Index, CC BY 4.0. States amend notices after filing; check the state filing before relying on this record.