Advance ticket sales for the 2025 World Exposition in Osaka will begin on Nov. 30, 500 days before its start date, its organizers said Thursday.

The admission price depends on when the tickets are bought and when they will be used, with a single-entry adult ticket costing between 4,000 yen ($28) and 6,700 yen, the Japan Association for the 2025 World Exposition said about the event, which runs from April 13 through Oct. 13.

Electronic tickets will be sold through the organization's website, with buyers essentially having to book half a year before their visit to the expo where at least 153 countries and regions are set to participate.

Reservation dates can be changed up to three times, and in principle there is no refund.

Supplied illustration shows the design of the venue for the 2025 World Exposition in Osaka. (Courtesy of the Japan Association for the 2025 World Exposition)(Kyodo)

The organization will impose limits on the number of visitors to prevent congestion in the transport system and at the event which will be held on Yumeshima, an artificial island in Osaka Bay, under the central theme of "Designing Future Society for Our Lives."

Related coverage:

Japan offers default insurance to construction firms for 2025 Expo

South Korea first country to submit plan for pavilion at 2025 Osaka Expo

Suzuki, SkyDrive to jointly start producing flying cars in 2024