NORTH YELLOW SEA,DANDONG DADONGGANG PORT VESSEL HAI WANG 889 ANCHORING AND SUBMARINE WORK IN AREA BOUNDED BY 39-42.122N124-06.970E,39-42.232N124-07.112E,39-42.157N124-07.227E AND 39-42.034N124-07.066E FROM 11 TO 13 OCT KEEP SHARP LOOKOUT AND CAUTION ADVISED.LIAONING MSA CHINA.