Bank of China
Bank of China has filed a patent application for a process it says is better able to scale blockchain systems.
The Bank of China is partnering with Tencent, one of the country's biggest internet companies, to trial blockchain tech in financial applications.
Bank of China has issued 20 billion yuan, or about $2.8 billion, in blockchain-based bonds to small businesses.
A group of banks in Hong Kong are reportedly developing a system that uses blockchain tech to share information about mortgage valuations.