GNB is trading on tradesatoshi.com now. this is link
https://tradesatoshi.com/Exchange?market=GNB_BTC
https://tradesatoshi.com/Exchange?market=GNB_USDT
https://tradesatoshi.com/Exchange?market=GNB_DOGE
https://tradesatoshi.com/Exchange?market=GNB_LTC
https://tradesatoshi.com/Exchange?market=GNB_BCH

Thank you for the follow up