The process steps are as follows:

1. Prepare a survey and signature form on the owner’s intention to install an elevator.

2. Collect copies of ID cards and real estate certificates of owners who agree to install elevators.

3. Entrust the design institute to do the planning and construction design for adding elevators.

4. Submit planning and construction application materials.

5. Review of the architectural design plan for adding an elevator.

6. Pre-approval announcement for additional elevators (10 days).

7. Planning permit for additional elevators.

8. The design institute completed the construction drawing design of the additional elevator (one week).

9. Apply for electricity from the local power supply station with the planning permit.

10. Determine the construction team and enter the construction site.