Koppers to cease phthalic anhydride production at Stickney, IL facility by mid-2025, expects $51-55M pre-tax charges

Koppers Holdings Inc.

Pre-tax charges of $51-55M through end of 2026; $28M non-cash, $23-27M cash for cleaning, demolition, severance.
Closure impacts ~25 employees; coal tar distillation operations at Stickney will continue unchanged.
Decision driven by significant near-term capital requirements and declining coal-tar feedstock availability.
Savings from closure incorporated into 2025 targets: $300M adjusted EBITDA and $65-75M capex.
Environmental benefit: annual emissions of regulated air contaminants expected to drop 50-70%.

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