Coinbene is an exchange established in December 2017, as they say they are based in singapore
This is a fairly large exchange and was once supported by billionaire Mcafee, it accepted BTC and other cryptocurrencies, it used to be among the top exchanges with the largest daily trading volume. This cryptocurrency exchange lists a lot of coins and trades them with the basic pairs BTC, ETH, USDT.
It is also an exchange that has a new transaction fee model.