At present, the world is facing urgent environmental challenges, and sustainability is no longer an option but a necessity. Resources recycling plays a vital role in protecting our environment and shaping a net-zero future. Across the region, East Asia shares close connections and common challenges in resources utilization, waste management, and environmental protection. It was this shared vision that led to the establishment of the International Symposium on East Asian Resources Recycling Technology (EARTH) in 1991 through strong regional collaboration. Over the years, the biennial EARTH symposium has grown into a dynamic and influential platform, bringing together researchers, industry professionals, and policymakers to exchange ideas, showcase innovations, and inspire new directions in resources recycling and sustainable technologies.

           Thailand has been part of this journey since its first participation in 2013, marking an important step in expanding collaboration beyond East Asia. This engagement led to Thailand hosting the 13^th EARTH in Pattaya in 2015. This year, Thailand is honored to host the symposium once again. We are delighted to welcome you to Bangkok—a vibrant global city where rich cultural heritage meets modern innovation. Here, tradition and progress come together to create an inspiring environment for dialogue, discovery, and collaboration.

                The 18^th EARTH Symposium (EARTH 2026) will take place at Chulalongkorn University in Bangkok, Thailand, from November 2026, 1–4, under the theme: “Innovating for a Circular Future: Technologies & Strategies for Net-Zero.” The symposium will bring together leading experts from academia, industry, and government to explore cutting-edge technologies, integrated strategies, and practical solutions that support circular economy transitions and net-zero ambitions. We warmly invite participants from around the world to join us in Bangkok—not only to share knowledge, but also to spark new ideas, build lasting partnerships, and shape a more resilient, circular, and sustainable future together.