Our company is one of the leading manufactures of maleic anhydride and fumaric acid in China and is a subsidiary of Shanxi regent works INC. Our location Shanxi province of China is famous by its coal chemical industry worldwide which makes us closer and easier to get the benzene our main raw material. We are granted by the province government as advanced technology enterprise, and certified by the international organization for standardization, ISO 9002 in 2000. Our annual output of of maleic anhydride is 26,000 tons, and the fumaric acid output is 5000 tons. As the first class supplier for maleic anhydride in China, with the advanced equipment, effective management system, reasonable price and perfect service, we enjoy high reputation in both domestic and oseas vermarket. The hope of our sincerity cooperates with the businessman of world