According to the contents specified in the Basic Telecommunication Business License, Tower Company can provide the basic telecommunication business operators with the rental and sale of indoor distribution systems. According to the content stipulated in the Value-added Telecommunication Business License, Tieta Company can be entrusted by users to manage domestic networks, network elements or equipment owned or rented by users, including but not limited to providing users with equipment placement, network management and operation and maintenance services, and providing users with management and maintenance services for interconnection and other network applications.