China specifically agreed under the terms of the transfer to allow for Hong Kong's continued independence in domestic matters until 2047. Beijing is in flagrant violations of its international treaty obligations.
The New Territories were under a 99 year lease, but Britain was under no obligation to transfer Hong Kong Island and Kowloon back at any time for any reason. They graciously agreed to return them for China, but in exchange Beijing made explicit promises, which it's openly disregarding.
The New Territories were under a 99 year lease, but Britain was under no obligation to transfer Hong Kong Island and Kowloon back at any time for any reason. They graciously agreed to return them for China, but in exchange Beijing made explicit promises, which it's openly disregarding.