GD184/21 SOUTH CHINA SEA M/V “DE SHEN” TOWING DRILLING PLATFORM “NAN HAI SHI HAO” FROM 21-39-47N 116-08-59E TO 21-37-03N 116-10-12E FROM 19 TO 20 AUG. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA