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BITKER was established in Singapore as a centralized cryptocurrency exchange. Following to their outage announcement in September 2019, the exchange platform had suspended its activity. The reason behind this was a cyber attack. 
THE WORLD’S LEADING AND MOST DIVERSE DERIVATIVES MARKETPLACE.
Coinswitch is an aggregator of exchanges for trading digital assets that appeared on the financial market in 2017. During this period of time, the company has been actively developing and has become popular among users around the world. The exchange brings together several of the leading exchanges around the world to ensure fast order execution and no trading restrictions on some of the world's most popular coins and tokens. It is a global platform, therefore it is available for traders from any country in the world.