On November 11, 2022 (Friday), IFEZ Director Kim Jin-yong visited the site of the 1st and 3rd districts of Songdo International City and checked the safety of the site. The joint district installed in Songdo International City has a total facility extension of 21.36km, starting with Songdo 1 and 3, and 5 and 7 and 6 and 8. It is an underground space with about 10 urban infrastructure, including electricity, water supply, communication, and heat pipes, and is a key national infrastructure.