On 17th of November 2011 , Mr. Sannpat Rattakham , Qualitech Public Co., Ltd. (QLT)’s Managing Director has a honor to receive the certificate from PTT Co., Ltd. ‘s Gas separation plant which indicates the good standard of managing the SHE ( Safety Health & Environmental) for the working performance of ‘Turnaround Gas’s separation Plant unit 1’ during 18th May – 11th June 2010.