Chinese Firms Exiting Mainland as Crypto Crackdown Bites href=”https://cryptonews.com/ext/poloniex/” >Poloniex. Per the China Securities Journal, “more than 20 “crypto-related companies have “announced their withdrawal from the Chinese market” in recent days. This number includes smaller crypto exchanges, mining hardware providers and manufacturers, and mining pools. Read more » Pay, Trade, Buy Bitcoin with Credit Card