Business News South Korea Clamps Down on Bitcoin Trading Amid Market Frenzy December 28, 2017 johorbiznet Johor News South Korea Clamps Down on Bitcoin Trading Amid Market Frenzy New York Times Bitcoin Prices Are Plunging Again — Here’s Why TheStreet.com Top 5 Things to Know in the Market on Thursday Investing.com South Korea to impose new curbs on cryptocurrency trading Reuters Full coverage Source: Business News Feed