HB87/22 BOHAI SEA SUBMARINE WORK FOR MV XINHAITONG2 IN WEST ANCHORAGE OF QINHUANGDAO PORT FROM 020100UTC TO 020700UTC JUN. ENTERING PROHIBITED WITHIN 0.3 MILES RADIUS OF 39-49.34N/119-38.54E. CAUTION ADVISED. HEBEI MSA CHINA.
