Bitbank is a cryptocurrency exchange in Japan, serving more than 550,000 users with 30 available trading pairs. Clients of Bitbank can trade cryptocurrencies in spot markets on the exchange and on an over-the-counter (OTC) basis. Bitbank has also announced a partnership with one of the largest specialized trust bank groups in Japan, Mitsui Sumitomo Trust Holdings, Inc., to establish a certified digital asset custodian company in Japan.