As far as I know, the tourism development center in Tongan District of Xiamen belongs to the local government department, specifically to the Tourism Bureau or Tourism Commission under the People's Government of Tongan District of Xiamen. This department is responsible for the planning, development and management of tourism in Tongan District, and promotes the prosperity and development of tourism economy. For the specific organizational structure and responsibilities, you can consult the department or relevant government departments in Xiamen to obtain more accurate information.