Business Korea on 28th May reported that Bithumb, South Korea’s biggest cryptocurrency exchange, will ban digital asset trading with investors in North Korea, Iran, Iraq, and 8 other countries that are considered as high-risk jurisdictions by the Non-Cooperative Countries and Territories (NCCT) Initiative of FATF. Bithumb is said to rank first in South Korea and sixth in the world in terms of trading volume.
http://www.businesskorea.co.kr/news/articleView.html?idxno=22579