Nanjing Hengsiman Chemical Co., Ltd. is an anionic surfactant manufacturer and exporter. It is the test base of Tianjin University, Jiangsu high-tech enterprise, and the surfactant R&D unit of Science and Technology committee of industry project of Academy of Engineer of China. We have two sets of advanced sulfonating devices with throughputs of 1MT/hour and 3.8MT/hour respectively. Computer management and auto control are fulfilled throughout the manufacturing process. Our SLS product successfully got the ISO9001:2000 certification, the international Quality Control System, in June 2006. We won the prize of technological progress in Jiangsu Province in 2006, too. Main market: Our products have been spread over 32 provinces and cities in domestic China, exported to Europe, America, Middle East, Southeast Asia and other areas of the world.