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TradeOgre is a centralized cryptocurrency exchange. TradeOgre provides trading service with multiple digital assets paired against BTC and LTC. 
Bitex Bitcoin exchange is one of the services offered by Bitex payment provider along with concierge (enabling quick local payments) and boutique (bulk bitcoin purchases) solutions. Bitex is the Argentine platform that was founded in 2014. 
CRXzone is the brand name for crypto exchange and merchant payment gateway. Trading pairs available with CRXzone include fiat currencies: USD (US dollar) and SGD (Singapore dollar). The exchange aims to provide deep liquidity.