GD0067 SOUTH CHINA SEA UNDER WATER ENGINEERING WORK BY M/V “HAI YANG SHI YOU 285”“HAI YANG SHI YOU 286” “HAI YANG SHI YOU 287” “HAI YANG SHI YOU 289” “HAI YANG SHI YOU 291”“HAI YANG SHI YOU 201” “GUO YAN ZHI XING 1”“HAI GONG 122” “HAI GONG 121” “ZHENG LI 18000” “CHANG DA HAI HANG” “YONG YU DA JIAN” “SHEN QIAN HAO”“XIN RUN 16” “XIN RUN 15”AND “DE BO” IN AREA WITHIN 1N MILE RADIUS OF 20-13-18.35N 115-41-11.45 AND 20-11-38.04N 115-41-50.13 FROM 5 APR. TO 31 DEC. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED ADVISED TO AVOID GUANGDONG MSA CHINA