Jiangsu Longchang Chemical Co., Ltd. is located in the Green New Material Industrial Park of Rugao Port, Rugao City, Jiangsu Province. It was founded in August 1999 and covers an area of ​​32,000 square meters. It has assets of nearly 300 million yuan and more than 200 employees, of which the number of people with college degree or above accounts for the total The number is 31%, and R&D personnel account for 25% of the total number. The company is mainly engaged in the production of aromatic chlorides and inorganic supramolecular soil remediation materials. The main products are chlorinated benzene, p-dichlorobenzene, o-dichlorobenzene, m-dichlorobenzene, 2,5-dichloronitrobenzene, 3,4-dichloronitrobenzene, o-nitro-p-chloroaniline (red Base 3GL), 2,4-dichloroacetophenone, soil conditioners, soil remediation agents, etc. The annual output is tens of thousands of tons. The company has passed the second-level standardized acceptance of production safety, passed the quality environment and occupational health and safety management system certification, and obtained the "production license", "hazardous waste management license", and "pollution permit". The new inorganic supramolecular materials developed by the company have peculiar effects and can be used in the treatment of pollution such as heavy metals, phosphorus-containing, organic wastewater, contaminated soil and groundwater restoration. It has huge application potential in adsorption, exchange, catalysis and slow release, and has become a hot spot for development and application at home and abroad. The company has always adhered to the concept of honest management, and has established long-term and excellent cooperative relations with Nanhua Company, Anhui Bayi, Suhua Group, Bank of China Group, Yabang Group, Fengshan Group, Xinanjiang Group and other companies, and its products are sold to the United States , Germany, Japan, Britain and other developed countries and regions. The company is a national high-tech enterprise, an innovative enterprise in Jiangsu Province, a AAA-level standardization good behavior enterprise, an advanced unit of intellectual property management standardization, an AAA-level credit enterprise, a top 500 private enterprise in Nantong, an energy-saving and emission-reduction technology innovation model enterprise, and industry-university-research institute Cooperative demonstration enterprise, quality model enterprise, advanced quality management enterprise, good on-site management enterprise, red flag unit of scientific and technological innovation, demonstration enterprise of integration of industrialization and industrialization, environmental behavior green enterprise. Relevant technologies have won the second prize of Jiangsu Province Science and Technology Award, Sinopec Federation Science and Technology Progress Award, China Circular Economy Association Science and Technology Award, and a number of Nantong Science and Technology Progress Awards. The company hired Zheng Lansun, an academician of the Chinese Academy of Sciences and a professor of Xiamen University, as the director of the technical committee. The enterprise academician workstation of Jiangsu Province was jointly built and was rated as a national model academician expert workstation. Fei Weiyang, an academician of the Chinese Academy of Sciences and a professor of Tsinghua University, was hired as the company's senior technical adviser to jointly build the Jiangsu Province Chloride Resource Engineering Technology Research Center. Together with the academician of the Chinese Academy of Sciences and the team of Professor Duan Xue from Beijing University of Chemical Technology, the Jiangsu Enterprise Technology Center was established to further optimize the process of inorganic supramolecular soil remediation materials and improve product quality. In addition, there are scientific innovation platforms such as Jiangsu Postgraduate Workstation and Jiangsu Postdoctoral Innovation Practice Base. At present, 15 products of the company have been recognized as high-tech products in Jiangsu Province, and 2,5-dichloronitrobenzene, a nitrogen fertilizer synergist, has been rated as a Jiangsu brand. The industry standards for o-dichlorobenzene, 2,5-dichloronitrobenzene, p-dichlorobenzene, 2,4-dichloroacetophenone, 3,4-dichloronitrobenzene, etc., which were presided over and formulated, have all been issued and implemented .