Yiannis Yiarentis is currently the CEO and Chairman of the BoD of Renewable Energy Sources (Dapeep SA). He is also member of the BoD of Hellenic Energy Exchange (Henex SA). He was previously holding several High-Level managing roles in Greek and Multinational Energy Companies like Chairman of the BoD and CEO of ADMIE, Manager in Petros Petropoulos, Supply Chain Manager in Shell Marine, Category and Procurement Manager in Shell International, Shell Hellas etc. He has been also member in International and National Committees like Climate Plan, Supply Chain and Logistics, CIPS, Entso-e, MeDTSo, etc. He holds a MSc In Sustainable Development and Bachelor degrees in Petroleum Engineering and Industrial Engineering.