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IDAX was established in December 2017 and it is currently the only operating Mongolian cryptocurrency exchange. In 2019 the exchange was shut down.
1inch is a decentralized exchange aggregator that sources liquidity from various exchanges and is capable of splitting a single trade transaction across multiple DEXs.
Gemini is an exchange founded in 2015 in the USA. The platform is open for traders from the USA, Canada, Europe, and the UK.