Koppers Carbon Materials LLC
Private companyWARN notices since 2024
1
First: Oct 30, 2026
Workers affected since 2024
60
Across 1 notice
Executive changes, last 12 months
0
0 appointments, 0 departures
Last event
Oct 30, 2026
Plant closurePlant closure: Stickney, IL
Workers affected over time
Cumulative workers in WARN notices since 2024
Not enough notices to chart yet.
Leadership
No executive changes on record.
- Plant closure
Plant closure: Stickney, IL
Koppers Carbon Materials LLC filed a WARN notice with the Illinois WARN list on Oct 30, 2026 covering 60 workers at 3900 S. Laramie Ave., Stickney.
Source: Illinois WARN list, filed Oct 30, 2026Site: Stickney, IL
Workers affected: 60
Only one public record so far. We add events as soon as a new filing lands; watch Koppers Carbon Materials LLC to get them in your digest.
Last verified Nov 8, 2026