GD211/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 671” TOWING DRILLING PLATFORM “NAN HAI JIU HAO” FROM 19-42-19N 112-23-49E TO 22-05-00N 113-52-00E VIA 21-49-13N 113-50-06E FROM 20 TO 25 SEP. LENGTH OVERALL 400M SPEED 3KN TO 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA