Colas
Yuji Koyama is currently serving as the Chief Operating Officer and Deputy Representative Director at COLAS JAPAN K.K. since December 2023, having previously held the role of Business Development Manager within the same company. Prior to this, experience includes a Senior Project Coordinator position at DGA - Direction générale de l'armement and various roles at Orange, SFR, and NEC Technologies, where responsibilities ranged from geolocation solutions management and network performance qualifications to project leading for mobile service development. Yuji Koyama's career began with a focus on mobile GPS navigation and continued through extensive expertise in mobile technology, project coordination, and customer support across several notable organizations. Yuji Koyama holds a Master of Science in Electronics from the University of Montpellier.
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Colas
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Colas SA is a France-based company that specializes in the construction and maintenance of road, air, rail and maritime transportation 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 comprise 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. The Company's major shareholder is Bouygues SA.