GD51/22 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “NAN HAI LIU HAO” FROM 21-27-34N 116-37-27E TO 21-13-15N 114-59-21E FROM 21 TO 25 MAY LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA