HB0016 BOHAI SEA SUBMARINE WORK FOR MV BULK URUGUAY IN WEST ANCHORAGE OF QINHUANGDAO PORT FROM 0100UTC TO 1100UTC 27 FEB. ENTERING AND ANCHORING PROHIBITED WITHIN 0.4 MILES RADIUS OF 39-47.91N/119-36.24E. PASS WITH SLOW SPEED. CAUTION ADVISED. HEBEI MSA CHINA.