GD0087 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 670” TOWING DRILLING PLATFORM “NAN HAI SI HAO” FROM 20-32.11N 109-36.31E TO 20-49.47N 108-41.12E FROM 25 TO 28 APR. LENGTH OVERALL 400M SPEED 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA