GD159/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “HAI YANG SHI YOU 943” FROM 20-35-51N 113-35-04E TO 21-21-05N 115-21-17E FROM 27 TO 30 JUL. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA