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Bisq exchange was launched back in 2014. At that time it was one of the first Decentralized Autonomous Organizations (or simply DAO). According to the founders of this exchange, one of the goals of Bisq network is to "keep the original spirit of Bitcoin alive".
Instant Bitex has ceased its operation. It was founded in 2018. The website and services of Instant Bitex are currently offline. 
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.