The Chinese government has cracked down on an underground bank that used crypto to provide yuan exchange services to Chinese nationals. According to a post published in Wechat by the State Administration of Foreign Exchange (SAFE), the Qingdao police managed to identify more than 1,000 accounts belonging to a Chinese national identified as Jin, that served as funneling accounts for the exchange business of 15.8 billion yuan ($2.2 billion). The exchange business had a presence in 17 provinces of the country, with more than 20 million transactions related to this ring.