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Negocie Coins is a centralized cryptocurrency exchange. Negocie Coins is incorporated by ZATER Capital company in Brazil, where it is based. 
Buy, sell and exchange cryptocurrencies easily, fast and conveniently.
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.