Osaka/Kansai Expo “Building construction to be completed by mid-October” Expo Association. More than 50 countries plan to exhibit using a method called "Type A," in which they build their own pavilions.
So far, companies have been established in 36 countries, but construction has started in only 5 countries. According to the estimated construction deadlines published by the Japan Exposition Association, in order to be ready for the opening in April next year, interior construction should be completed in mid-January.