GD59/24 SOUTH CHINA SEA “HAI YANG SHI YOU 678” TOWING DRILLING PLATFORM “HAI YANG SHI YOU 943” FROM 21-19.9N 115-04.4E TO 21-20.0N 115-09.1E FROM 23 TO 24 APR. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA