In 2011, Daqing oilfield north Wulian and north Liulian high poly sewage treatment contract was concluded. The “Tank○R→flotation → filter technique” of the company offer new technique route for high poly sewage treatment.
In 2011, CNOOC JZ9-3 platform poly sewage treatment scientific research project was successfully passed the patent examination.
In 2011, Shengli oilfield ocean oil production plant Haisanlian expansion project was completed and put into operation.
In 2011, the company concluded and signed the municipal sludge resurces treatment technology cooperation construct with Korean Greenpula Company.
In 2011, the company was awarded the “2011 top ten blue water environmental protection vanguard of private enterprises of China” by CSPGP.
In 2011, the company awarded the first batch of members of China industrial energy saving and clean production association.