GD39/22 SOUTH CHINA SEA M/V “DE ZE” TOWING DRILLING PLATFORM “NAN HAI SHI HAO” FROM 21-07-54N 115-26-39E TO 21-19-26N 115-33-27E FROM 23 TO 24 APR. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA