Liquefied Natural Gas (LNG), the main component is methane, is recognized as the cleanest fossil energy on Earth. Colorless, tasteless, non-toxic and non-corrosive, its volume is about 1/625 of the volume of the same amount of gaseous natural gas, and the quality of liquefied natural gas is only about 45% of the same body of water.

The world's advanced countries in environmental protection are promoting the use of LNG. In addition to being used as fuel for power plants, factories and household users, the methane contained in it can be used as chemical raw materials such as fertilizer, methanol solvent and synthetic acetic acid. In addition, the ethane and propane contained in it can be cracked to produce ethylene and propylene, which is an important raw material for plastic products.