Site: phemex.com
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Coinsuper is a custodial exchange that was incorporated under the laws of Hong Kong in 2017. Trading pairs offer fiat currency USD, as well as BTC, ETH and USDT as their major currencies. There are mixed customers’ reviews about this exchange. 
Digital asset trading platform that provides secure trading services based on high transaction liquidity to users around the world.
Radar Relay is the trading platform used for transactions with Ethereum tokens. The company is registered in Delaware, USA.