What is Koppers' announced plan for its Stickney, Illinois chemical plant, and how many jobs will be affected?

Koppers Holdings Inc. announced a conditional decision to close its Stickney, Illinois chemical manufacturing facility by December 31, 2026, impacting approximately 85 employees.

What are the primary reasons cited by Koppers for closing the Illinois plant, and what financial impacts does the company expect?

The closure is driven by challenging market conditions and high operating costs; it is expected to result in pre-tax charges of $227 million to $262 million but also lead to annual free cash flow improvement of $15 million to $25 million.

Koppers Plans to Close Illinois Chemical Plant, Cut 85 Jobs

Aug 4, 2026

Koppers Holdings Inc will close its Stickney, Illinois chemical facility by December 2026, impacting 85 employees due to high operating costs. Production will shift to Denmark, aiming for cash flow improvements despite $262 million in pre-tax charges.

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