GD136/21 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “NAN HAI JIU HAO” IN AREA WITHIN 1NM RADIUS OF 19-42-18.7N 112-23-48.9E FROM 30 JUN. TO 30 AUG. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA
