According to Yonhap News Agency, South Korean prosecutors have launched their first investigation into former lawmaker Kim Nam-kook for possible illegal cryptocurrency transactions during his tenure as a lawmaker. Previously, it was reported that former lawmaker Kim Nanguo held virtual currencies worth up to 6 billion won (about 4.48 million US dollars) such as Wemix coin, Mabrex, Bora, etc., which aroused public suspicion about the source of his investment funds and the use of funds.