GD248/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 685” TOWING DRILLING PLATFORM “NAN HAI SI HAO” FROM 20-46.9N 110-48.5E TO 20-16.8N 108-33.0E FROM 9 TO 14 DEC. LENGTH OVERALL 400M SPEED 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA