On 21 June 2018, Mr.Wittawat Svasti-xuto, Senior Executive Vice President, Innovation and Digital of PTT Plc., and Mr.Piyabut Charuphen, Managing Director of Bangkok Industrial Gas Co., Ltd. (BIG), have signed the Memorandum of Understanding (MOU) for the industrial gas innovation collaboration between PTT and BIG, with the honorable witness by  Mr.Chansin Treenuchagron, Chief Technology and Innovation Officer of PTT.