The Foreign Secretary commented in Parliament on 26 September that the status of British nationals overseas was

“part of the delicate balance”—[Official Report, 26 September 2019; Vol. 664, c. 865]— in the negotiations that led to the Sino-British joint declaration. We believe that it would undermine the commitments made under the memorandum exchanged in connection with the joint declaration to change the arrangements regarding the status of BNOs, but we monitor the situation constantly. I know the right hon. Gentleman takes a keen interest in the issue.