Site: bitkonan.com
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Kryptono is a centralized cryptocurrency exchange incorporated under  the law of Singapore. The KNOW token is the platform’s utility token. 
Founded in 2017, Crypto Dispensers is a digital currency platform where consumers can transact with new digital currencies like Bitcoin, ethereum, and litecoin. Based in Chicago, Illinois.
Trade Satoshi exchange was closed with a prior notice published in February, 2020. A 10 days’ period was given to customers to withdraw their funds till March 1, 2020.