GD186/21 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “NAN HAI QI HAO” IN AREA WITHIN 1NM RADIUS OF 19-45-43N 112-13-06E FROM 20 AUG. TO 20 OCT. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA
