Sale of Products
           Energy-consuming enterprises purchase energy saving devices from ZKYJ to conduct energy saving by themselves while the profits from energy saving will all belong to the energy-consuming enterprises.
          Energy Management Contracting (EMC)
          ZKYJ makes investment to provide comprehensive energy saving service for energy-consuming enterprises and shares profits from energy saving with energy-consuming enterprises.
          Finance Lease
          ZKYJ offers comprehensive energy service to energy-consuming enterprises while all profits from energy saving will belong to these enterprises. Energy-consuming enterprises only need to pay rent to leasing company which purchased energy saving devices.