As the core subsidiary of China Zhong Yi Group, an important state-owned enterprise, it was established in 1994 and located in Dalian, Liaoning Province. For a long time, Dalian Nuclear Power Petrochemical Company has always been committed to revitalizing the national industry and developing the equipment manufacturing industry, and has been committed to the localization of major technical equipment in China's nuclear power, petroleum, chemical and other industries. There are postdoctoral workstations, physical and chemical testing centers, welder training and examination centers.
There are two major manufacturing bases: nuclear power and petrochemical. The main products are the third and fourth generation nuclear reactors and special product pressure vessels represented by Hualong No.1, Guoheyi No.1, fast breeder reactor and high temperature gas cooled reactor, as well as petrochemical equipment represented by "kiloton" petroleum refining cracking hydrogenation reactor, coal-to-liquid chemical reactor and ethylene oxide reactor.