On 19 January 2015, Mr. Surasak Urpsirisuk, Managing Director, signed the Memorandum of Understanding on LPG Cylinder Refurbishment Agreement with PTT Public Company Limited, represented by Mr. Somyot Kongprawet – Executive Vice President, Commercial and International Marketing, Mr. Yingyos Charlito – Vice President, Engineering & Technical Services, and Mr. Chaiwat Sakaoujit – Vice President, LPG Marketing, at Palung Thai Room, PTT Plc. Headquarter Building.