South Korea\'s import prices of liquefied petroleum gas (LPG) fell in October on the back of a drop in international oil prices, industry sources said Thursday. Saudi Aramco, the state-owned oil company of Saudi Arabia, has informed South Korean importers that it has lowered prices of propane and butane gas to US$735 and $815 per ton, respectively, down $55 and $50 from the previous month, according to the sources.