BOHAI SEA ，TUG “SHENG LI 291” TOWING “SHENG LI ZUO YE 6” PLATFORM FROM CB251GB （38°13′55.13″N，118°51′27.97″ E） TO CB12B（38°11′39.29″N，118°50′11.87″E）. FROM 261600 UTC JAN. TO 081600 UTC FEB. SPEED 3 KNOTS. LENGTH OF TOWING 300 METERS. CAUTION REQUESTED.