Thailand’s PTT Public Company Limited (PTT) has signed a Memorandum of Understanding (MOU) to supply Rayong Olefins Company Limited, a chemical subsidiary of Siam Cement Group, liquefied petroleum gas (LPG) and natural gasoline (NGL) for use as feedstocks in producing ethylene and propylene. Prasert Bunsumpun, PTT’s senior executive vice president (gas business), said his company…