HB14/22 BOHAI SEA DRILLING SURVEY BY MV HAIYANGSHIYOU707 AND NANHAI503 FROM 14 TO 18 JAN IN AREA BOUNDED BY THE LINES JOINING：
（1）39-09.02N/119-46.50E；（2）39-09.02N/119-48.54E；
（3）39-07.40N/119-48.54E；（4）39-07.40N/119-46.50E.
ENTERING PROHIBITED AND CAUTION ADVISED. HEBEI MSA CHINA.