GD0033 SOUTH CHINA SEA DRILLING OPERATION CARRY OUT BY DRILLING PLATFORM “NAN HAI ER HAO” IN AREA WITHIN 1NM RADIUS OF 21-43-42.66N 116-03-25.52E FROM 22 FEB. TO 22 APR. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA