BOHAI SEA ，TUG “HAI YANG SHI YOU 679” TOWING “ZHONG YOU HAI 19” PLATFORM FROM KL3-4-1(37°56′16.072″N；119°29′14.355″E)TO KL3-2WPFB（37°59′31.773″N；119°21′13.843″E）, FROM 270400 UTC SEP TO 021600 UTC OCT. SPEED 4 KNOTS.LENGTH OF TOWING 550 METERS. CAUTION REQUESTED.