GD79/25 SOUTH CHINA SEA OPERATION AT SEA BY M/V “HAI YANG SHI YOU 709” AND M/V “HAI YANG SHI YOU 770” IN AREA BOUNDED BY 19-58.5N 115-14.1E,19-58.6N 115-19.3E,19-53.7N 115-19.3E AND 19-53.6N 115-14.2E.FROM 27 APR TO 31 MAY.KEEP CLEAR OF THIS AREA.GUANGDONG MSA CHINA