NORTH YELLOW SEA, FROM 150800UTC TO 201000UTC FEB， DUAL-FUEL RO-RO TRIAL VOYAGE IN THE AREA BOUNDED BY:
A：38-27.98N/121-59.95E；
B：38-14.01N/122-00.00E；
C：38-18.01N/121-41.97E；
D：38-28.00N/121-42.05E.
CAUTION TO AVOID.
CANCEL SD46/22.
SHANDONG MSA CHINA.