Prior to this position Erwann was Trading Department Director at Saint-Gobain Japan, Vice-President Glass Japan at Saint-Gobain, Sales Planning Director at MAG-ISOVER Japan, North and South Asia Pacific Sales and Marketing Leader at Owens Corning, Sales and Marketing Director NSG Vetrotex Japan, and Commercial Attaché at the French Embassy in Tokyo. He has a Masters Degree in Applied Mechanics from Tokyo University and an MBA from the Skema Business School.