GD166/21 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “SINOOCEAN AUSPICIOUS” IN AREA WITHIN 1NM RADIUS OF 21-20-40N 115-05-15E FROM 31 JUL. TO 30 SEP. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA
