BOHAI SEA ，TUG HAI YANG GONG CHENG 1201 TOWING ZHONG YOU HAI 11 HAO PLATFORM FROM BZ34-2/4WHPB (38-07.08N 119-32.97E) TO BZ27-2-4 (38-12.58N 119-27.43E). FROM 060000 UTC TO 111600 UTC Aug . SPEED 4 KNOTS. LENGTH OF TOWING 533.4 METERS. CAUTION REQUESTED.