Chaoyang District Collection Center belongs to the local government collection department and is responsible for the related work of house collection and demolition. In China, the specific management level and organizational structure will vary from region to region, and it is impossible to give an exact answer. The expropriation center may be related to the Housing and Urban-Rural Development Committee (the Ministry of Housing and Urban-Rural Development), because the Housing and Urban-Rural Development Committee is responsible for urban planning and housing management, and the work related to expropriation and demolition may also fall within the scope of responsibility of the Housing and Urban-Rural Development Committee.