GD0063 SOUTH CHINA SEA UNDER WATER OPERATION CARRY OUT BY M/V “HAI YANG SHI YOU 289” AND M/V “HUA RONG 7” IN AREA WITHIN 2KM RADIUS OF 21-37-52.02N 116-03-16.14E（“NAN HAI SHENG KAI” FSOU） FROM 10 APR. TO 30 JUN. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA