On Tuesday 25 December 2012, representatives from PTT plc.’s Bangchak Petroleum Terminal and Technical Services Division, Mr. Sukit Wannako, Mr. Sorawat Kittikool, Mr. Theera Weerawong, Mr. Pongpaut Totrakool, and staffs visited SMPC to perform on-site audit for 7 kg cylinders order with quality production and on-time delivery to be ready for PTT’s customers in 2013.