OKB is a cryptocurrency released by the OK Blockchain Foundation and Maltese crypto exchange, OKEx. The exchange is one of the largest in the world and currently ranks third in liquidity, fourth in trading volume, and provides a wide selection of trading pairs. OKEx is similar in many aspects to the cryptocurrency exchange giant Binance, but there are a few key differences. The OKEx platform has its own cloud mining service, and the company has a more focused reach in providing options tradin...