we have talked with dev of https://www.unnamed.exchange/ ...they can list SUM coin for 0.03 btc...we ask ALL for collect that amount in btc....4 market BTC LTC ETH DOGE good information.. although not very well known but the daily transaction rate on unnamed.exchange is pretty good. In the future, I hope that Sumcoin can be listed on large exchanges such as Binance and Bittrex.