The internal turret buoy single-point mooring system developed by China Offshore Oil Engineering Company (COOEC), controlled by China National Offshore Oil Corporation (CNOOC), has received two approvals in principle (AIP), one from the China Classification Society (CCC) and another from Bureau Veritas.

COOEC China Classification Society Bureau Veritas Nanhai Endeavour Deep Sea No Anemone No Marine Oil Middle East Project Corporation CNOOC Chinese Huizhou Asia Safaniya Aramco