Why did Koppers lower its full-year 2026 adjusted earnings guidance, and what specific factors did the company cite?

Koppers lowered its full-year 2026 adjusted earnings guidance from $4.20–$5.00 per share to $3.80–$4.60 per share due to the current competitive environment and global economic conditions, as well as ongoing uncertainty associated with geopolitical and supply chain challenges. The company specifically cited the economic fallout of higher oil prices — driven by the Middle East conflict — which is expected to impact profitability by up to $10 million this year, along with persistent competitive pressures and higher raw material costs that significantly reduced carbon materials and chemicals profitability.

What operational change did Koppers announce regarding its Stickney, Illinois plant, and when will it take effect?

Koppers announced it will be discontinuing distillation and chemical manufacturing operations at its Stickney, Illinois plant by the end of the year.

Koppers Lowers Guidance on Supply Chain Uncertainty

May 9, 2026

Koppers Holdings reported Q1 net income of $7.1 million but reduced full-year earnings guidance citing rising raw material costs and supply chain issues. Additionally, the firm announced the discontinuation of chemical manufacturing operations at its Stickney, Illinois plant.

chemweek

2026-05-09

Koppers Lowers Guidance on Supply Chain Uncertainty

2026-11-07

Koppers Lowers Guidance on Higher Raw Material and Logistics Costs

Koppers Lowers Guidance on Supply Chain Uncertainty

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