BOHAI SEA, FROM 200400UTC TO 261600UTC FEB, TUG HAIYANGGONGCHENG1201 TOWING PLATFORM BOHAI 12 HAO, LENGTH OVERALL 506 METERS, SPEED 4 KNOTS, VIA:
A：38-12-47N/120-09-23E；
B：38-23-00N/119-39-00E；
C：38-24-00N/119-05-00E；
D：38-22-52N/118-59-57E.
CAUTION TO AVOID.
SHANDONG MSA CHINA.