JST is a part of the USDJ currency system. Holding JST can participate in the community governance of JUST and pay the stabilization fee for CDP borrowing in the JUST system.
Released in 2014, Groestlcoin (GRS) cryptocurrency enables private and fast transactions. It is the first coin that activated Lightning Network and SegWit. You can buy GRS for both crypto and fiat currencies (USD, EUR, GBP, KRW). This cryptocurrency is listed on multiple exchanges.
Polymath (POLY) is an ERC-20 token facilitating the payment process within the Polymath ecosystem. It is the native token of the Polymath platform. The token is listed on multiple exchanges.
Crypterium (CRPT) is a popular token available on major exchanges and through Crypterium app. It is the principal token of the Crypterium platform. You can buy these tokens with fiat (hard) currency, BTC, ETH and a number of other methods.
In 2019 summer, CRPT swapped to the Binance Chain.