Yes, a list of documents that must be submitted by postal mail can be found in the checklist forms for each application track. https://adm-iu.postech.ac.kr/user/admission/guide/international.do
These documents must be physically mailed and received by the Admissions Office before the application deadline.
 
Postal submission is mandatory as part of the standard application process and must be completed regardless of online application status. Completion of the online application does not replace the requirement to submit these documents by post.
 
Any documents requiring Apostille or consular authentication must be submitted in their original form. Please note that submission of Apostilled or consular-authenticated original documents after receiving an acceptance letter is not allowed.
 
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An application will be considered complete and valid for evaluation only if all of the following are fulfilled within the application period:
 
1. Submission of original hard-copy documents specifically required by post
2. Submission of the score report of English Language Proficiency Test (or exemption with supporting documents)
3. Direct submission of recommendation letters by recommenders via email to postech-iuadmission@postech.ac.kr (applicants should provide recommenders with the required form)
4. Completion of the online application and payment of the application fee online
 
   * Please note that any documents submitted will not be returned, even if the applicant later chooses not to complete the entire application process.