OKEX is a cryptocurrency exchange owned by OKCoin, with the company behind both of them is based in China and primarily centers on the domestic market. OKEX charges extremely low trading fees when compared to other exchanges. We have not been able to find any unfavorable criticism directed towards OKEx -the company has built up quite a reputation since its formation in 2014 and its user base is claimed to be in excess of 2000,000 active customers.