sentences:  He was President of Thai Airways International between October 2009 and June 2012.He is Chairman of PTT Public Company Limited, board member of Kasikorn Bank, and board member of Pruksa Holding PCL.Piyasvasti plays active roles in three non-profit organizations as a founding and core member of the Energy Reform for Sustainability Group (ERS); Chairman of the Energy for Environment Foundation, a non-profit organization undertaking renewable energy and energy efficiency projects; and as president of the Ski and Snowboard Association of Thailand.