Vasilis Katerelos is a seasoned professional with extensive experience in sustainability, production, and process optimization within the cement industry. Currently serving as the Sustainability Director at Holcim since September 2005, Vasilis has also held positions including Production Manager and Optimization Manager, focusing on kiln and cement mill processes, environmental management, and quality control. Prior to Holcim, Vasilis worked as a Quality Control Supervisor at Kerakoll from September 2003 to September 2005. Academically, Vasilis holds a Master of Business Administration from the University of Piraeus, a Master's degree in Computational Fluid Dynamics from the National Technical University of Athens, and another Master's degree in Chemical Engineering from the same institution.