Site: dem.exchange
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BCoin.sg was a centralized cryptocurrency exchange based in Singapore. The exchange was launched in 2018.  Deposits were free on the exchange. Margin trading option was not available on the exchange.  At the moment the exchange doesn’t work and there is no official information about when the exchange will be active again. All the official pages of the platform are down as well, including Twitter and Facebook. We will update information about the exchange as soon as it is active again. 
Cat.Ex exchange platform was founded in mid-2018. Its headquarters is based in China. Providing its local token holders with dividends on a daily basis, Cat.Ex utilizes transaction mining in order to ensure an efficient profit-sharing. 
COSS (Crypto-One-Stop-Solution) is a young cryptocurrency exchange registered in 2017 and based in Singapore. Singapore is one of the largest donors to Asian cryptocurrency exchanges. On the platform, you can perform operations with three dozen cryptocurrencies paired with Bitcoin and Ethereum. Today, there are hundreds of stores and three hundred merchants among platform customers.