GD0007 SOUTH CHINA SEA DRILLING OPERATION IN AREA WITHIN 1NM RADIUS OF 20-32-29.25N 115-34-27.16E CARRY OUT BY DRILLING PLATFORM “NAN HAI WU HAO” FROM 8 JAN. TO 30 APR. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA