Nanu Exchange is a Brazilian Exchange that traded alot of cryptocurrencies ranging from Bitcoin, Ethereum, Litecoin, Tether, ChainLink and sone other tokens, digital assets and cryptocurrencies. There's no much information regarding the history of this exchange apart from the fact that it was founded in Brazil. Before it closed down, there was a continuous decrease in the trading volume if the exchange, which therefore meant that the exchange wasn't liquid before it closed down. The exchange has an inactive customer support center, I tried contacting them, it seemed like a forever process so i just had to forfeit the idea of trading in this exchange.