Headquartered in Bath, Pennsylvania, Keystone Cement Company has established a long-standing reputation as a reliable supplier of Portland and masonry cements for highways, bridges, buildings, and large-scale infrastructure projects. The company operates manufacturing, aggregate, and resource recovery divisions, serving customers across Pennsylvania and neighboring states. Keystone emphasizes operational reliability, environmental responsibility, and community involvement, while maintaining a strong presence in the Lehigh Valley construction industry.
The company’s operations are supported by extensive raw material reserves and strategically positioned facilities that help serve major transportation, commercial, and public infrastructure markets throughout the region. In addition to cement production, Keystone is involved in aggregates and sustainability-focused resource recovery initiatives, reinforcing its role as a vertically integrated construction materials provider. With nearly a century of experience, Keystone continues to evolve through innovation and modernization, and it's committed to strengthening the communities and industries it serves.
