BOHAI SEA ，TUG “HAIYANGSHIYOU677”TOWING “ZHONGYOUHAI19” PLATFORM FROM KL3-2W（37°59′31.773″N；119°21′13.843″E）TO KL3-4-1(37°56′16.072″N；119°29′14.355″E) FROM 021600 UTC JUL TO 081600 UTC JUL.SPEED 4 KNOTS.LENGTH OF TOWING 550 METERS. CAUTION REQUESTED.