CRYPTO20 (C20) is an “autonomous token-as-a-fund” and represents an Ethereum-based token. As of now, it is trading on a few exchanges with HitBTC being the most active exchange platform on its list. CRYPTO20 are so-called close-ended tokens. It means that no new tokens can be created. CRYPTO20 can only be purchased.
MinexCoin (MNX) is the fuel coin of the MinexCoin payment platform. At the time of writing, you’ll be able to trade MNX against USD on the Exmo exchange and trade it against other cryptos of a few other exchange platforms. MNX can be mined.
NavCoin (NAV) anonymous cryptocurrency operates on its own blockchain and serves as the coin of the NavCoin digital payment platform launched in 2014. It is currently represented on a few exchanges.