In June 2021, the National Demonstration Project Huang District 3 CO2 Enhanced Oil Recovery (EOR) Integrated Test Station, located in the Mahuangshan North Oil Production Zone of the Fifth Oil Production Plant in Changqing Oilfield, successfully completed single-machine testing.

The project uses oilfield-associated gas as its source. The compression and liquefaction system in the process flow features one set of compression integrated system and one set of refrigeration integrated system, both developed and manufactured by MOON-TECH. The main equipment includes a screw compressor unit independently developed by MOON-TECH.