GD28/22 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 672” TOWING DRILLING PLATFORM “NAN HAI SI HAO” FROM 20-28-57N 109-28-39E TO 20-49-20N 108-39-20E FROM 27 TO 31 MAR. LENGTH OVERALL 400M SPEED 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA