From January 11th, 2021 foreigners holding a valid Korean visa who have renewed their passport are able to update their passport information on the Korea Visa Portal (http://www.visa.go.kr).
o Eligibility: Foreigners who have received a Korean visa from a Korean Embassy or Consulate (outside Korea) and then renewed their passport due to damage or expiration while their Korean visa is valid
o Ineligibility: Foreigners who renewed their passport due to loss. They must visit the Korean Embassy or Consulate in order to update their passport information.
o Required documents : Scanned file of the old passport and new passport (personal information page)
o How to update the passport information online : Visit Korea Visa Portal (http://www.visa.go.kr) -> Click “Application” on top left -> Click “Change of Passport Information” -> Fill out the information and upload files
o How to check the result and print out a new visa grant notice : Click “Check Application Status” on top left on Korea Visa Portal → “Check Application Status & Print”
o For further details about how to update the passport information on the Korea Visa Portal, please refer to the attached file (manual) in this post.