n February 19, 2025, the retirement ceremony for Professor Kweon Jae Ryong was held.

The ceremony was attended by over 60 people, including Professor Jung Jae-hoon, Chair of the Mathematics Department at POSTECH, along with department members, students, and acquaintances of Professor Kwon.

The retirement ceremony began in Room 404 of the Mathematical Sciences Building, where a token of appreciation was presented and a brief farewell lecture was delivered.

Afterward, everyone moved to the POSCO International Center to enjoy a banquet together.