BOHAI SEA ，TUG “SHENG LI 291” TOWING “SHENG LI 9 HAO ” PLATFORM FROM ：CB85（38°16′52.28″N，118°59′07.41″E）TO YANTAI RAFFLES YARD （37°35′45.16″N ， 121°22′57.13″E） FROM 180000 UTC Dec. TO 261600 UTC Dec. SPEED 4 KNOTS.LENGTH OF TOWING 500 METERS. CAUTION REQUESTED.