GD115/25 SOUTH CHINA SEA “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “NAN HAI ER HAO” FROM 21-37.1N 116-28.8E TO 21-39.6N 116-26.3E FROM 16 TO 17 JUN. LENGTH OF TOW 250M SPEED 1.5KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA