BOHAI SEA ， TUG“BEI HAI JIU 118” TOWING “BOHAI5HAO” PLATFORM FROM KL10-2-13(37°38′00.436″N; 119°24′26.103″ E)TO KL10-2-10d(37°45′57.951″N; 119°46′03.023″ E)。FROM 291200 UTC APR.TO 051600 UTC MAY. SPEED 4 KNOTS.LENGTH OF TOWING 476 METERS. CAUTION REQUESTED.