Koppers Reports Third Quarter 2025 Financial Performance with Mixed Results Amid Market Challenges

Koppers Reports Mixed Financial Results for Q3 2025

On November 7, 2025, Koppers Holdings Inc. (NYSE: KOP), a leading provider of treated wood products and carbon compounds, announced its financial results for the third quarter of 2025. Despite experiencing a drop in sales compared to the previous year, the company managed to report an increase in net income, illustrating efforts toward operational efficiency and cost control.

Key Financial Highlights

For the three months ended September 30, 2025, Koppers reported net sales of $485.3 million, down from $554.3 million in the same quarter of 2024, marking a 12.4% decline. However, the net income attributable to Koppers rose to $23.8 million, compared to $22.8 million in the prior year. This translates to an increase of 4.4%. The diluted earnings per share were reported at $1.17, compared to $1.09 from the previous year, reflecting a growth of 7.3%.

In terms of adjusted performance metrics, the adjusted EPS was reported at $1.21, a decline from $1.37 year-over-year, while adjusted EBITDA decreased to $70.9 million from $77.4 million.

Market Dynamics Impacting Performance

Koppers' CEO, Leroy Ball, noted that while cost control measures have been fruitful, the overall market conditions remained challenging, particularly outside the utility pole sector. Several factors contributed to declining sales volumes, notably in the Performance Chemicals segment, which experienced an 18.3% decrease in net sales primarily due to market share shifts.

The railroad products sector, specifically, faced reduced demand from Class I crosstie customers, resulting in decreased sales volumes in maintenance businesses as well.