As at the Latest Practicable Date, we have obtained 38 patents ralating to our production equipment and method used in the chemical processes of our products,and has obtained 46 authorizations. It has obtained 20 domestic and international scientific and technological achievements appraisal and reserves dozens of technologically advanced new products. The Havay R&D team has improved its technology. Optimize the production process, improve product yield, reduce emissions, improve safety and environmental protection coefficient, to provide continuous power support for enterprise development.