HB0064 BOHAI SEA SUBMARINE WORK FOR MV XINHAITONG2 IN EAST ANCHORAGE OF QINHUANGDAO PORT FROM 0030UTC TO 1100UTC DAILY FROM 24 TO 25 MAY. ENTERING AND ANCHORING PROHIBITED WITHIN 0.3 MILES RADIUS OF 39-52.50N/119-43.69E. CAUTION ADVISED. HEBEI MSA CHINA.