Provide domestic, regional and international scheduled and irregular airline, cargo, mail and luggage transportation services; provide aircraft maintenance services; operate domestic and foreign airline agency services; provide aviation catering services (branch operations only); aviation ground extension services; civil aircraft model training (limited to branches operated with a license); asset leasing; engineering management and technical consulting; aviation materials sales; travel agency services; retail and wholesale of goods; health examination services; Internet sales (except for the sale of goods requiring licensing); insurance agency business; domestic trade agency; professional design services; First-class value-added telecommunication services; second-class value-added telecommunication services; advertisement production; advertisement publishing; advertisement design and agency; Internet data services; Internet information services; information system integration services; IoT technology services; socio-economic consulting services; information consulting services (excluding licensing information consulting services). (For projects requiring approval according to law, business activities can only be carried out after approval by the relevant departments.)