Korean is the official language of North Korea and South Korea. In China, there are about 78 million Korean speakers.
Since the Korean War, contemporary North-South differences in Korean have developed, including variance in pronunciation, verb inflection, and vocabulary. We currently only have translators from South Korea and we will translate for the readers in South Korea only.
Two interesting facts about Korean: It uses eastern characters but uses space as word separator, like English. When English texts are translated into Korean, the lines usually run longer than the original - which brings troubles for website or software localization.