CoinW is an Australian centralised exchange which came into existence in 2017. This exchange literally has no accessible and useful information about itself. When I loaded the webpage, most of its content where blank, so it was impossible to determine the number of cryptocurrencies supported as well as the trading pairs. For an exchange looking like this, it seems like the trading volume for the exchange would be $0. Most times I prefer to trade on a regulated and licensed exchange because there's usually very little to worry about. However for unregulated exchanges, users have to keep moving out their funds periodically inorder to prevent a sudden inability to withdraw their funds again. As the exchange's activities doesn't look straightforward, i wouldn't recommend this trading platform for anyone.