GD250/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 681” TOWING DRILLING PLATFORM “NAN HAI JIU HAO” FROM 22-05-00N 113-51-00E TO 19-56-14N 114-49-03E FROM 12 TO 17 DEC. LENGTH OVERALL 600M SPEED 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA