The Mitsui and Toshiba Pavilion was constructed in 2004 as a preview project for the 2005 Japan International Exposition held in Aichi Prefecture. Designed by Masashi Oe and Plantech General Planning Office, this structure showcased innovative architectural concepts developed for the expo. The pavilion demonstrated the collaborative vision of two major Japanese corporations in creating forward-thinking exhibition spaces. Its design reflected contemporary approaches to temporary architecture and exhibition design, serving as an important prototype for the main exposition event that followed.