Nantong Huishun Chemical Co., Ltd., established in 2005, has a registered capital of 65 million yuan and an area of 26640 square meters. The company is a high-tech chemical enterprise integrating science and technology, R & D, production, sales and technical services. The company is located in Jiangsu Rudong Yangkou Chemical Industrial Park, located in the North Bank of the Yangtze River Estuary and Shanghai 2-hour economic circle. It is adjacent to the Yellow Sea in the East and the Yangtze River in the south. The park gives priority to the development of new chemical materials and special fine chemicals. It is a fine chemical industrial park with the most vitality, development potential and core competitiveness in the Yangtze River Delta region. The park has a complete set of thermal power plant, centralized sewage treatment plant, hazardous waste treatment center and other infrastructure, as well as water supply, fire control, natural gas and other public works. At the same time, we have built a first-class intelligent park management platform integrating safety, environmental protection, emergency, energy and logistics, which is a solid guarantee for our long-term investment and sustainable development. Nantong Huishun's main products are 4.4'- diaminodiphenyl ether (4.4' - ODA), 3.4'- diaminodiphenyl ether (3.4' - ODA), polyimide (PI) resin, with 15 years of industry accumulation. The company has established an experienced professional technical management team with excellent production equipment, excellent product quality, stable performance and leading technology. The company actively promotes the construction of system capacity, and has successively passed ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, Jiangsu province safety secondary standardization acceptance, and national high-tech enterprise certification.