BOHAI SEA ，TUG “SHENG LI 291” TOWING “SHENG LI ZUO YE XIN YI” PLATFORM FROM CACB30A（38°11′39.08″N，118°55′34.05″E） TO XBKD34A（37°54′48.74″N,119°07′32.84″E）. FROM 110800 UTC FEB. TO 211600 UTC FEB. SPEED 3KNOTS. LENGTH OF TOWING 300 METERS. CAUTION REQUESTED.