BOHAI SEA ，TUG “SHENG LI 291” TOWING “SHENG LI LIU HAO ” PLATFORM FROM CB351 （38°10′12.54″N，118°56′43.64″ E） TO ZHUANG HAI 105（38°08′34.55″N，118°57′29.72″E）. FROM 221300 UTC FEB. TO 021600 UTC MAR. SPEED 2 KNOTS. LENGTH OF TOWING 300 METERS. CAUTION REQUESTED.