GD258/21 SOUTH CHINA SEA M/V “DE ZE” TOWING DRILLING PLATFORM “HAI YANG SHI YOU 943” FROM 21-26-10N 115-18-53E TO 21-17-40N 115-24-15E FROM JANUARY 2 TO 4 ，2022 LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA