Harbin Dong'an Industrial Development Co., Ltd. (hereinafter referred to as Dong'an Industrial Co., Ltd.) was founded in September 1989, and was transformed into a limited liability company in November 2005 according to the document of the eight ministries and commissions of the state (Guo Jing Mao Qi Gai [2002] No. 859). The registered capital is 30 million yuan.

Dong'an industry is one of the top 100 private enterprises in Heilongjiang Province, with total assets of 600 million yuan, annual business income of 400 million yuan, and more than 800 employees. The company has a land area of 60000 square meters and a workshop area of 30000 square meters. It has more than 500 sets of manufacturing, testing, measuring, testing and physical and chemical equipment, including seven axis machining center, five axis machining center, slow moving wire, injection machine, oil seal automatic press mounting machine, three coordinate measuring machine, nozzle tester, water pump comprehensive performance test bench, Mooney viscometer, etc.

Dong'an industry is a national high-tech enterprise, with provincial enterprise technology center and Rubber Research Institute under it. At present, there are 103 engineering and technical personnel, accounting for 12% of the total staff, including 12 senior teachers and 23 deputy senior teachers. Automobile products have the ability of synchronous research and development with customers, and skeleton oil seal products have scientific research qualification, and can realize synchronous research and development with customers.