ptt public company limited (ptt) will execute the LPG recovery project to reduce burden of the imported LPG by improving and expanding the existing Ethane Separation plant (ESP) located inside PTT Gas Separation plant Complex in Rayong. the project will utilize the by-pass natural gas to produce the additional Ethane, Propane, LPG and NGL product and will be operated in conjunction with both existing Gas Separation Plant NO.3 and Ethane Separation Plant.