On Sunday, October 15, 2023, IFEZ held a ceremony to celebrate the 20th anniversary of its opening. The commemorative event was performed by the Royal Children's Choir and Royce at the pre-ceremony event, followed by commemorative speeches and congratulatory speeches by guests from home and abroad, the announcement of the 20th anniversary of the opening and future vision, and the declaration of Songdo International City as an English-speaking city.