BOHAI SEA ， TUG “SHENG LI 291” TOWING “SHENG LI QI HAO ” PLATFORM FROM ZHUANG HAI XIE 271(38°08′43.40″N；119°02′19.45″E) TO YAN TAI DAO LAO JU SHIPYARD：(37°35′45.16″N；121°22′57.13″E) FROM 261200 UTC Nov. TO 041600 UTC Dec. SPEED 4 KNOTS.LENGTH OF TOWING 500 METERS. CAUTION REQUESTED.