GD196/21 SOUTH CHINA SEA M/V “DE SHEN” TOWING DRILLING PLATFORM “NAN HAI WU HAO” FROM 19-40-33N 113-45-41E TO 20-03-11N 114-09-52E FROM 28 TO 30 AUG. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA