GD0256 SOUTH CHINA SEA DRILLING OPERATION BY DRILLING PLATFORM “SINOOCEAN AUSPICIOUS” IN AREA WITHIN 1N MILE RADIUS OF 20-47-29.18N 114-49-19.41E FROM DECEMBER 14, 2020 TO FEBRUARY 14，2021 SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA