BOHAI SEA ，TUG “HAIYANGSHIYOU679”“DONGHAIJIU158”TOWING “ZHONGYOUHAI16” PLATFORM FROM BZ21-2-2（38°25′51.515″N；119°18′29.293″E）TO BZ29-4-8d（38°10′57.334″N；119°42′42.657″E） FROM 240830 UTC JUN. TO 301600 UTC JUN.SPEED 4 KNOTS.LENGTH OF TOWING 520 METERS. CAUTION REQUESTED.