CredoEx was introduced to the market by BitBounce in 2018. At the moment, the company’s website is down and Twitter media has not been updated since mid-2019

Dex.top is a decentralized cryptocurrency trading platform offering trading with smart contracts (including but not limited to Ethereum, EOS and NEO). The platform describes itself as World’s First Multi-Chain Decentralized Exchange and claims to have top volume among other decentralized exchanges. 

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. 

The exchange was closed in 2019 with the preliminary notice informing about suspension of trading and deposit. Withdrawals had been operational for a couple of months since that time till December 1, 2019. The team explained the termination of activity by business reasons.

In March, 2020 GuldenTrader exchange has published an announcement calling its customers to withdraw their funds before April 1, when the exchange will cease its operation.

Coinnest was closed in June 2019 as per the announcement made in advance so that customers could withdraw their assets. There is information that the exchange has made errors in airdrops before.

Cryptonex is a centralized cryptocurrency exchange launched in 2017. Its reported volume is about 250007314 $ as of 8 October 2019. Cryptonex has 18 available trading pairs and 8 coins. Deposits are free on the exchange. Cryptonex has fiat deposits option. Margin trading option is not available on the exchange. Cryptonex is quite active in social media, with more than 25000 Twitter followers. You can leave your review about Cryptonex here.