Koppers Company Reviews

Best Phthalic ever ..fresh, warm and moist with a hint of naphthalene and orthoxylene. Would definitely eat there again!!

The Stickney plant does not pay its bills, 60 days quickly turns to 90. I would not refer any vendors to work with this group. The plant is old and dirty.

High expectations are always great, but put in what you get out. Accounting and HR are the most unprofessional operation I have seen. Good luck with getting paid from this vendor.