HB0014 BOHAI SEA SUBMARINE WORK FOR MV TAI SHAN IN WEST ANCHORAGE OF QINHUANGDAO PORT FROM 0000UTC TO 1000UTC DAILY FROM 13 TO 15 MAR. ENTERING AND ANCHORING PROHIBITED WITHIN 0.6 MILES RADIUS OF 39-44.08N/119-38.68E. PASS WITH SLOW SPEED. CAUTION ADVISED.HEBEI MSA CHINA.