Biodiesel is a low density and high calorific value oil formed by esterification or transesterification of bio-oil. It is a biochemical product with basically the same properties as petrochemical diesel, and its scientific name is fatty acid methyl ester.

Because the molecular chain of biodiesel contains oxygen, it can be completely burned, and there are no other pollutants except carbon dioxide, which effectively reduces air pollution. According to relevant data, 35% of smog comes from automobile exhaust, so it has been widely used in developed countries and regions.

Europe 7%, America 5%, Japan and South Korea 7%, Malaysia and Indonesia are rich in palm oil resources (80% of the world's palm oil comes from there) and 25%.