About Exhibition THW - Thai Water Expo Bangkok 2026 will be held from 01 - 03 July 2026 at Queen Sirikit National Convention Center - QSNCC in Bangkok, Thailand. This is the leading water and wastewater technology exhibition and conference in Thailand. It showcases the latest technology and innovations in areas involving water resources management and wastewater treatment for private municipalities and industry. It is a great opportunity to learn about the latest technologies, network with industry professionals, and find new business opportunities.