GD0259 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “NAN HAI ER HAO” IN AREA WITHIN 1N MILE RADIUS OF 20-19-10.34N 113-28-53.44 FROM DECEMBER 21, 2020 TO FEBRUARY 21，2021 SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA