GD257/21 SOUTH CHINA SEA M/V “HUA MING” TOWING DRILLING PLATFORM “NAN HAI ER HAO” FROM 21-42-28N 116-09-36E TO 22-30-10N 113-50-46E FROM 23 TO 26 DEC. LENGTH OVERALL 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA