Site:
ergoplatform.org
Power Ledger (POWR) is an ERC-20 compliant market token of the energy platform, that is listed by a number of exchanges. It can also be traded against the fiat currency on some of these platforms: for example, against USD on the LocalTrade exchange.
Particl (PART) privacy coin fuels the Particl ecosystem. You can buy the coin on the number of custodial and non-custodial exchanges alike. The fiat purchase with EUR is supported by the Litebit exchange.
Time New Bank (TNB) is an ERC-20 token that is currently undergoing a gradual swap to its own mainnet. This is the settlement token for transmitting assets based on value of time. At the time of writing, you can trade an Ethereum-based TNB token against USD on the Bitfinex exchange.