BITBOX is a Singapore-based cryptocurrency exchange launched in 2018. The team behind this platform is better known for a different project — messaging app LINE. The exchange is not available for the American citizens and doesn't support fiat money yet, but allegedly these problems are going to be addressed in the future. The trading volume is relatively low on BITBOX. By all valuations, this exchange ranks below the 100th position.
Huobi is a cryptocurrency exchange founded in China in 2013. Currently, Huobi is based in Singapore because this country has friendlier cryptocurrency regulations. The company is registered in Seychelles. Before leaving China due to a cryptocurrency ban, the exchange was responsible for 90% of Bitcoin trading volume in this country. Now Huobi is an international platform with offices located in Singapore, Hong Kong, the United States, Japan, and Korea. In China, the company provides blockchain consulting services. Huobi has sub-exchanges: Huobi Korea, Huobi US, etc. Huobi Global is the biggest Huobi exchange. In November 2019 Huobi Global had to shut down all the accounts belonging to the US customers due to strict cryptocurrency regulations of the USA.