GD0023 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “NAN HAI SHI HAO” FROM 21-37-47.34N 116-10-28.93E TO 21-35-03.70N 116-22-32.09E FROM 7 FEB. TO 9 FEB. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA