Only one country has applied to design and construct a national pavilion for the Osaka Expo, which is now less than one year and nine months from its start date of April 13, 2025, with tickets set to go on sale in about four months.

But with the window for construction growing shorter, Osaka officials worry that unless a way to get other countries to set up their pavilions is found quickly, some who have agreed to build large facilities could change their minds.

Construction on Osaka’s Yumeshima island, where the expo will be held, is way behind schedule, and organizers are increasingly worried that pavilions will not be ready.