GD0057 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “NAN HAI QI HAO” IN AREA WITHIN 1N MILE RADIUS OF 19-43-14.94N 112-23-46.31E FROM 25 MAR. TO 25 MAY SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA
