LNG is an abbreviation for Liquefied Natural Gas. LNG is produced by cooling natural gas, which is mostly methane (CH4), to approximately minus 160 degrees Celsius to form a liquid. The resultant volume of the LNG will be about 1/600 that of the original natural gas. Natural gas is liquefied in the producing countries, such as Indonesia and in the Middle and Near East, and transported to consuming countries by LNG tankers. Japan is the largest LNG importer in the world.