GD0046 SOUTH CHINA SEA DRILLING OPERATION CARRY OUT BY DRILLING PLATFORM “NAN HAI SHI HAO” IN AREA WITHIN 1NM RADIUS OF 21-20-49.36N 115-29-15.59E FROM 15 MAR. TO 15 MAY SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA