Application for documents issued from the university, such as the certificate or the transcript, as you may need them after returning to your country.
NHI: If you wish to stay in Taiwan after being graduated, you need to apply for NHI enrolment in the National Health Insurance Administration or the nearest Township Office of your address (which must be the same as the one on your after-being-graduated ARC).
Mobile number cancellation (please contact your service provider).