One of Japan’s 16 full-licensed cryptocurrency exchanges, Bitbank offers eight cryptocurrency trading pairs and is ranked 31st in the world in terms of total daily traded volume.
Interestingly, Bitbank is seemingly stringent with its 12-month lock-in period.
Interestingly, the exchange’s rival GMO offers a much better deal for users with regards to a lock-in period – offering a three-month minimum timeframe for users who lend their bitcoin, and a 150-day timeframe for other virtual currencies, such as ether, ripple, and litecoin.
https://www.ccn.com/this-japanese-exchange-will-burrow-your-bitcoin-for-a-yearly-fee/