PTT Plc, the national oil and gas conglomerate, has decided to scrap its 10-billion-baht investment plan for the second unit of the depot facility for imported liquefied petroleum gas (LPG) in Chon Buri due to falling domestic demand. Besides, global oil prices plummeted more than 50% to nearly US$50 per barrel, encouraging motorists to resume using petrol and diesel instead of LPG.