BOHAI SEA, FROM 171000UTC TO 221600UTC MAR, TUGS HAIYANGSHIYOU641 AND BINHAI284 TOWING PLATFORM ZHONGYOUHAI9， FROM （38-07.2N/ 119-50.6E），VIA（38-14.0N/119-47.5E），TO（38-20.6N/119-20.0E） , LENGTH OVERALL 531 METERS, SPEED 4 KNOTS.
CAUTION TO AVOID.
SHANDONG MSA CHINA.