BOHAI SEA ，TUG “SHENG LI 291、SHENG LI 242” TOWING “SHENG LI ZUO YE XIN YI” PLATFORM FROM CB22H（N：38°18′2″ E：118°53′27″）TO CBG4A (N：38°15′8″ E：118°57′35″）, FROM 161100 UTC MAR.TO 211600 UTC MAR. SPEED 3 KNOTS.LENGTH OF TOWING 300 METERS. CAUTION REQUESTED.