The Asian-Pacific Postal Union (APPU) is a specialized intergovernmental organization comprising 32 member countries committed to fostering regional cooperation, enhancing postal infrastructure, and advancing the role of postal services across the Asia-Pacific. Headquartered in Bangkok, Thailand, APPU is a Regional Union of the Universal Postal Union (UPU). Its primary purpose is to extend, facilitate, and improve postal relations among its members, while promoting collaboration and mutual assistance in the development of postal services throughout the region.