Which kind of person need to pre-register?

Which kind of person need to pre-register?

Please refer to the "Service_list_for_pre-registration" available on the dedicated website. Services not listed will not be affected by the log-in system change, and you can continue using your current log-in ID.
Additionally, if your account was issued by another company, it may also be excluded from the change. In such cases, please contact the company that provided your account for further guidance.