BOHAI SEA, FROM240700UTC TO 291600UTC JAN,TUG HAIYANGSHIYOU 679 TOWING PLATFORM BOHAI 5 HAO,FROM (38-13.7N/ 119-45.5E) VIA (38-35N/ 119-45.5E)TO (38-8.3N/119-23.8E), LENGTH OVERALL526METERS, SPEED 4.5KNOTS. CAUTION TO AVOID.