GD47/22 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “NAN HAI SHI HAO” FROM 21-19-26N 115-33-27E TO 22-01-36N 113-58-41E FROM 10 TO 12 MAY LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA