GD46/22 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 673” TOWING DRILLING PLATFORM “NAN HAI ER HAO” FROM 22-30-10N 113-50-46E TO 21-17-51N 115-24-54E FROM 9 TO 13 MAY LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA