TJ69/25 BOHAI SEA, OPERATION OF 3D SEISMIC ACQUISITION PROJECT CARRIED OUT BY M/V HAI YANG SHI YOU 771, BIN HAI 517, MIN SHENG 106,HANG KE 6 IN AREA BOUNDED BY THE LINES JOINING 38-45.12N 119-11.73E ,38-52.90N 119-21.75E , 38-54.99N 119-28.47E,38-54.99N 119-35.26E ,38-46.33N 119-46.15E ,38-34.99N 119-31.67E ,38-38.21N 119-27.57E ,38-35.64N 119-24.21E FROM 011000 UTC MAY TO 181600 UTC NOV. CAUTION ADVISED.TIANJIN MSA CHINA.