Fumaric acid is a pure taste acidant, used as a sour agent in beverages, alcohol, pastries and pickles, etc., and plays the role of food preservative, antioxidant and PH regulator. Fumaric acid is an important basic chemical raw material and fine chemical product, widely used in coatings, resins, pharmaceuticals, plasticizers and other fields. It can be used in industry for the production of unsaturated resins and alkyd resins, as well as as raw materials for the production of electrocoat paints.