Construction enterprise qualification certificate:

First level professional contracting for foundation engineering

First level specialized contracting in electronic and intelligent engineering

First level professional contracting for fire protection facility engineering

First level professional contracting for waterproofing, anti-corrosion, and insulation engineering

First level professional contracting qualification for architectural decoration engineering

First level professional contracting for building mechanical and electrical installation engineering

First level professional contracting qualification for building curtain wall engineering

First level professional contracting for ancient architecture engineering

Second level professional contracting for urban and road lighting engineering

Level 1 Environmental Engineering Professional Contracting

Second level general contracting for construction projects

Second level general contracting for highway engineering construction

Second level general contracting for power engineering construction

Second level general contracting for petrochemical engineering construction

Second level general contracting for municipal public works construction

Second level general contracting for mechanical and electrical engineering construction

Second level professional contracting for bridge engineering

Second level professional contracting for steel structure engineering

Second level professional contracting for power transmission and transformation engineering

Construction labor is not graded

Special engineering (building correction and translation) professional contracting is not graded

Special engineering (structural reinforcement) professional contracting is not graded

Engineering Design Qualification Certificate

Lighting Engineering Design Special Class B

Special Grade B for Fire Protection Facility Engineering Design

License for Installation (Repair, Testing) of Electric Power Facilities

Third level of load-bearing category

Third level maintenance

Test Class Level 2

Special Equipment Production License of the People's Republic of China

Installation, Repair, and Renovation of Special Pressure Equipment GB1/GB2/GC2