Xanthan gum, also known as yellow gum, Hanson gum, xanthomonas polysaccharide, is a single spore polysaccharide produced by the fermentation of pseudoxanthomonas.The upstream industry of xanthan gum is mainly corn starch, which is the deep processing product of corn.At present, China's corn supply is stable.China is a big corn producer in the world.Since 2010, China's corn output has maintained a steady and rising growth trend, with an average annual growth rate of 6%.It has maintained an output of more than 200 million tons for many years.China's corn consumption and output basically keep synchronous change.The supply of corn starch in China is relatively sufficient. In 2018, the output of corn starch in China reached 28.1491 million tons, and the price was relatively low, which laid a good foundation for the normal production development of xanthan gum industry.