GD155/21 SOUTH CHINA SEA SEISMIC SURVEY BY M/V “HAI YANG SHI YOU 760” IN AREA BOUNDED BY 19-19-14N 112-52-43E，19-27-04N 113-06-42E，19-02-23N 113-22-02E AND 18-54-33N 113-08-04E FROM 22 JUL. TO 30 SEP. THE VESSEL TOWING 6 CABLES LENGTH 6600M WITH ORANGE RED VISUAL BUOY AT EACH CABLE END FLASHING WHITE LIGHT AT NIGHT SPEED 4.2KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED CROSSING THE CABLES AREA PROHIBITED GUANGDONG MSA CHINA