GD0013 SOUTH CHINA SEA DRILLING OPERATION IN AREA WITHIN 1NM RADIUS OF 20-49-52.53N 113-28-22.62E CARRY OUT BY DRILLING PLATFORM “NAN HAI SHI HAO” FROM 17 JAN. TO 17 MAR. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA