GD249/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “NAN HAI LIU HAO” FROM 21-35-38N 115-11-52E TO 21-14-30N 116-35-35E FROM 10 TO 13 DEC. LENGTH OVERALL 400M TO 800M SPEED 3KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA