GD0012 SOUTH CHINA SEA DRILLING OPERATION IN AREA WITHIN 1NM RADIUS OF 21-13-48.81N 115-17-19.42E CARRY OUT BY DRILLING PLATFORM “NAN HAI QI HAO” FROM 14 JAN. TO 14 MAR. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA