1. General Contracting Grade II to Grade I Qualification for Municipal Engineering Construction

2. General Contracting Grade II to Grade I Qualification for Construction Engineering Projects

3. Class Two Qualification for Electronic and Intelligent Engineering Professional Contracting

4. Class Two General Contracting Qualification for Electric Power Engineering Construction

5. Class 2 Fire Protection Facilities Professional Contracting Qualification

6. Municipal Public Works General Contracting Grade II

7. Waterproofing, anticorrosion, and thermal insulation professional contracting qualification level 2

8. General Contracting Qualification for Construction Engineering, Grade II

9. China Clean Industry Standardization Association Personnel Qualification Certificate

10. Class 2 Professional Qualification for Foundation Engineering General Contracting

11. China Tendering and Bidding Website Credit Certificate Inquiry

12. Class Two Qualification for Professional Contracting of Architectural Façade Systems

13. Class Two General Contracting Qualification for Water Conservancy and Hydropower Construction

14. Labor services without classification by grade

15. Class 2 Qualification for Professional Contracting in Architectural Decoration and Renovation

16. Class 2 Qualification for Specialized Contracting in Crane Equipment Installation Engineering

17. Furniture CQTA Quality Verification Certificate

18. Communication Engineering General Contracting Qualification Level II

19. Highway Construction General Contracting Qualification Level Two

20. Class Two General Contracting Qualification for Mechanical and Electrical Engineering Construction