General projects: technical service, technology development, technology consultation, technology exchange, technology transfer, technology promotion; Environmental advisory services; Environmental protection monitoring; Environmental sanitation public facilities installation services; Professional cleaning, cleaning, disinfection services; Leasing services (excluding licensed leasing services); Conference and exhibition services; Sales agent; Software sales; Office supplies sales; Business training (excluding education training, vocational skills training and other training that requires permission); Nursing facility services (excluding medical services); Organize cultural and artistic exchange activities. (Except for projects subject to approval according to law, independently carry out business activities according to law with business licenses)