The dismantling of the Osaka-Kansai Expo 2025 site is exemplifying a circular economy model. Over 20% of pavilion materials are targeted for reuse, with 98% of non-reusable items recycled. Structures like the Pasona and Netherlands pavilions will relocate to Awaji Island in Hyogo Prefecture, while others transform into bags and childcare facilities.
The Grand Ring, a majestic wooden structure encircling the central grounds of the Osaka-Kansai Expo with a 2-kilometer circumference, left lasting impressions on millions of visitors this year. As the event concludes, its materials are now fueling a shift toward a circular economy, moving beyond mass production, consumption, and disposal. The Japan Association for the 2025 World Exposition targets reusing more than 20% of pavilion materials overall, while recycling 98% of non-reusable waste like exhibits. An association official noted, “Achieving the [recycling] targets is important, but reducing waste in the first place is crucial, and reuse is key to that.”
Several pavilions were built with reuse in mind from the start. Disassembly of the Pasona Pavilion's exterior, which drew about 2.5 million visitors, started in December; it will relocate to Awaji Island in Hyogo Prefecture alongside the Netherlands Pavilion, which Pasona is acquiring. Timber from the Japan Pavilion's external walls will go to municipal governments and educational facilities. Osaka Prefecture's master plan calls for permanently preserving parts of the iconic Grand Ring and repurposing Luxembourg Pavilion sections for childcare facilities. The membrane roof over the Luxembourg Pavilion will be upcycled into designer bags by the Japanese brand Seal, creating higher-value products.
Challenges persist, however. As temporary structures, pavilions require extra work for permanent use, including fire resistance compliance, plus transportation and meticulous dismantling costs. Sources indicate several instances where cost reassessments altered reuse plans. The Osaka Chamber of Commerce and Industry is connecting participating countries with small and medium-sized enterprises to repurpose slated-for-disposal materials and fixtures. The 2027 International Horticultural Expo in Yokohama emerges as a prime recipient, with reuse planned for the Women’s Pavilion, Panasonic Pavilion, Mitsubishi Future Pavilion, and Grand Ring sections.
With global resource consumption projected to more than double by 2060 due to emerging economies, the Expo aligned with UN Sustainable Development Goals through its “Green Vision” reuse targets. It boosted visitor awareness of sustainability and built networks among companies, organizations, and individuals. These post-Expo efforts are set to shape planning, operations, and dismantling of major events worldwide, fostering a global zero-waste standard.