The Edmonton Journal has the story and either it, or the Leduc region, have already gotten themselves into trouble with this statement (my bolding):
Yangyang, a mountainous region with coastline in the Sea of Japan and a famous salmon stream, is promoting green industries such as tourism and agriculture, forestry and fisheries. It is also a transportation hub, with an international airport and major highway links.
Koreans know this is the incorrect name for the sea to the East of Korea, properly known at the East Sea.