BOHAI SEA ，TUG “HAI YANG SHI YOU641” “DE REN”TOWING “ZHONG YOU HAI 19” PLATFORM FROM KL3-2WPFB(37°59′31.773″N；119°21′13.843″E)TO LD25-1-4 (39°14′35.109″N；120°04′22.930″E), FROM 071300UTC FEB.TO 101600 UTC FEB. SPEED 4 KNOTS.LENGTH OF TOWING 550 METERS. CAUTION REQUESTED.