What are the procedures for transferring Foshan social security back to the UK?

According to the Notice on Forwarding the Interim Measures for the Transfer and Continuation of the Basic Old-age Insurance for Urban Enterprise Employees in Ministry of Human Resources and Social Security and the Ministry of Finance (No.66 [2009] of the State Council), the old-age insurance can be transferred and continued in different places. Please bring the old-age insurance payment voucher issued by the social security bureau of the transfer-in place to the social security bureau of the transfer-in place. After that, the social security department will coordinate the formalities: after the transfer-in social security bureau verifies that it meets the transfer-in conditions, the transfer-in social security bureau will send a contact letter to the transfer-out social security bureau, and the transfer-out social security bureau will handle the pension insurance relationship and fund transfer procedures after receiving the contact letter.