BTCC, the operator of one of the largest bitcoin mining pools and cryptocurrency exchange platform, was sold to an investment fund from Hong Kong.

Chinese cryptocurrency conglomerate BTCC was acquired by a Hong Kong-based blockchain investment fund. The amount paid, as well as the name of the fund, were not disclosed.

BTCC operates a mining pool which mined $900 million worth of bitcoins in 2017. BTCC also had an exchange platform with more than $25 billion trading volume in 2017, but after Chinese financial authorities restricted trading cryptocurrencies in pairs to Chinese yuan, the platform ceased its trading operations in September and closed all trading services in October.

"Today's acquisition is an incredible milestone for BTCC that validates all of our hard work over the past few years. I'm very excited about the resources this gives BTCC to move faster and aggressively grow our businesses in 2018 and beyond," BTCC co-founder Bobby Lee said in a statement.

BTCC plans to expanse its businesses in the world and focus on three main divisions, which are BTCC Pool, mobile payment application Mobi and USD Exchange.

"We now have the resources to realize our vision of a world in which the convenient and trustworthy digital currency services we create get everyone using digital currencies," the head of BTCC Pool Denver Zhao said.