GD33/22 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 681” TOWING DRILLING PLATFORM “NAN HAI JIU HAO” FROM 19-56-14N 114-49-03E TO 20-30-02N 115-46-30E FROM 6 TO 9 APR. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA