Annual Reports

Our Company

As modern masters of global infrastructure and seasoned industry advisors, our commitment to people, planet, and performance is the foundation for all we put forth.

Products

Wood Enhancement Technologies

Railroad

Utility & Industrial

Carbon & Coating Solutions

CPRO™ for Advanced Battery Anode Materials

Products

We are what the world is made of—we use renewable and repurposed raw materials to protect and extend the life of global infrastructure, for a more sustainable world.

Services

Railroad Structures

Recovery & Reuse

Utility Services

Research & Innovation

Carbon Material Testing

Services

Our services support critical infrastructure industries around the world. As trusted advisors with decades of proven success, we've seen it all, done it all, and are ready for whatever comes next.

Sustainability

People

Planet

Performance

Sustainability Reports

Sustainability

Protecting what matters while preserving the future—guided by this purpose, the Koppers sustainability strategy focuses on three key pillars of people, planet, and performance.

Documents & Resources

© 2026 Koppers Inc.