Update: The exchange is closed.
CampBX is a platform where you can buy and sell Bitcoins in real-time from other CampBX users. Your buy or sell orders are matched against a parameterized database of other orders. If a perfect match is found, a Bitcoin-to-USD trade is executed instantly. If there are no matching orders at the price you specified, then your order can remain open for up to 31 days. To maintain fairness in trading, the CampBX platform has taken a purely-platform approach and CampBX is never a counter-party to any trade. 

BX Thailand is currently not providing exchange trading services. The exchange is officially closed. 
Bitcoin Co. Ltd. was the operating company for Bitcoin Exchange Thailand. This company started to seek licensing from the Bank of Thailand in 2013. After receiving approval from BoT, the development of the exchange service under the brand BX.in.th had been started. Following that, the merchant service CoinPay was launched.

BuyUcoin is the most trusted & advanced digital currency exchange in India. The service supports a variety of features and products to easily buy, sell, trade, and store cryptocurrencies. With over 350,000+ customers that vouch for the ease with which BuyUcoin enables digital asset trading. The service's mission is to bring cryptocurrencies in a million Indian pockets. 

Bitibu was established in 2018 as a centralized cryptocurrency exchange.
As of now, this platform is not active.

BiteBTC is currently an inactive provider of crypto exchange services. It claimed to have a registration from Singapore. Later on, in January of 2019, BiteBTC failed to meet its obligations under the pretext of the fire in their data center. Customers’ accounts were frozen. It is further reported that the persons behind BiteBTC opened Fedlio exchange, which refused to redeem liabilities of BiteBTC. 

Bidesk exchange is a digital asset trading platform that has been built to provide a secure and safe environment for trading high quality tokens and coins whilst providing the best user experience to its users.

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.