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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.
Lykke is the cryptocurrency exchange incorporated in Switzerland with offices across the world. Its products are open-source. Lykke is the initiative of the Oanda’s founder, a famous forex exchange trading platform.  
MyCoinStory (hereinafter referred to as MCS, https://www.mycoinstory.com) is a Trend Leading Cryptocurrency Derivatives Trading Platform registered in Seychelles with headquarters in Singapore and offices in South Korea.