BOHAI SEA ，TUG “SHENG LI 291、SHENG LI 242” TOWING “SHENG LI ZUO YE SI HAO” PLATFORM FROM CB22H（N：38°13′19″ E：118°49′21″）TO CB271A (N：38°14′30.55″ E：118°51′1.73″）, FROM 050300 UTC MAR.TO 131600 UTC MAR. SPEED 3 KNOTS.LENGTH OF TOWING 300 METERS. CAUTION REQUESTED.