1. The Special Grade of General Contracting in Water Conservancy and Hydropower Engineering Construction
2. The First Grade of General Contracting in Water Conservancy and Hydropower Engineering Construction
3. The First Grade of Contracting in Earth and Rock Engineering
4. The First Grade of Blasting and Demolition Engineering Contracting
5. The First Grade of Tunnel Engineering Contracting
6. The First Grade of Groundwork and Foundation Engineering Contracting
7. The First Grade of Power Transmission and Transformation Engineering Contracting
8. The First Grade of Contracting in Mechanical and Electrical Equipment Installation Engineering
9. General Contracting in Housing Construction
10. Garden and Antique Building Works Contracting
11. Contracting in Urban Garden and Afforest
12. Engineering Survey Class A
13. Engineering Reconnaissance Class B
14. Certificate of Class A Supervisor Unit Awarded by Ministry of Water Conservancy
15. Certificate of Class A Supervisor Unit Awarded by Ministry of Construction
16. Qualification Certificate of Building Quality Inspection
17. Qualification Certificate of Measurement by PRC