GD0264 SOUTH CHINA SEA UNDER WATER ENGINEERING WORK CARRY OUT BY M/V “HAI YANG SHI YOU 285/286/287/289/291/201” “GUO YAN ZHI XING 1” “HAI GONG 122” “HAI GONG 121” “ZHENG LI 18000” “CHANG DA HAI HANG” “YONG YU DA JIAN” “KAN TAN 313” “CUI BAI” “XIN RUN 16” “XIN RUN 15” AND “DE BO” IN 1000M BOTH SIDES FROM THE LINE JOINING （A）20-13-18.35N 115-41-11.44E AND （B）20-14-23.51N 115-49-55.59E AND IN AREA WITHIN 2NM RADIUS OF POINT （A） AND POINT （B） FROM JANUARY 1，2021 TO AUGUST 31，2021 SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED ADVISED TO AVOID GUANGDONG MSA CHINA