Jiangsu Donglong Industrial Co., Ltd. is located in the industrial park of Dongtai City, adjacent to the Chuanchang River in the west, the exit of the happy East Expressway in the north, and the national highway 204 and Dongtai station of Xinchang railway in the East. It covers an area of 150 mu and has a construction area of 32000 m2. It has nearly 500 employees, including 68 engineering technicians, more than 80 people with intermediate or above titles, and 60% of the total number of employees with college degrees or above. The company is a rubber antioxidant production enterprise with a long production time, advanced technology, large scale and complete varieties in central and Northern Jiangsu, and also a large-scale private enterprise in the domestic counterparts. The main products are rubber antioxidant 4020, 4010NA, RD, and auxiliary intermediate RT toast. The products are sold all over the country and exported to the United States, South Korea, Japan, Europe and Southeast Asia. With the continuous change and development of the market economy, we always pay attention to the development direction and development level of rubber additives at home and abroad, constantly develop new products and new processes, and have established a joint and close cooperative relationship with domestic colleges and universities, scientific research institutes and foreign advanced enterprises.