Colas SA is a France-based company that specializes in the construction and maintenance of a road, air, rail, and maritime transport infrastructure. The Company's core activities include construction and maintenance of roads, highways, airport runways, port, industrial and logistics infrastructure, bus and tramways, urban transport and recreational facilities, bicycle paths, and more. Colas SA is also engaged in the manufacture and recycling of construction materials, including aggregates, asphalt mixes, and ready-to-use concrete via an extensive international network of quarries and emulsion, asphalt and concrete plants. Its building business comprises of new construction and refurbishment of buildings. Moreover, the Company manufactures and sells bitumen, signage, safety, and traffic management systems and offers a range of services, including waterproofing and roofing, among others.