BOHAI SEA,TUG HAIYANGSHIYOU 679 TOWING ZHONGYOUHAI 18 PLATFORM FROM BZ19-2-23 38-17.63N 119-07.27E TO KL6-1WHPF 37-57.66N 119-45.63E.FROM 091000 UTC TO 151600 UTC NOV. SPEED 4 KNOTS. LENGTH OF TOWING 543 METERS.CAUTION REQUESTED.SHANDONG MSA.