Special Grade on general contracting for building project

Special Grade on general contracting for municipal project

Grade I on general contracting for mechanical and electrical ( M&E ) installation project

Grade I on general contracting for highway construction

Grade II on general contracting for hydraulic and hydroelectric engineering construction

Grade III on general contracting for railway construction

Grade III on general contracting for petrochemical projects

Grade III on general contracting for power engineering construction

Grade I on professional contracting for steel structure project

Grade I on professional contracting for ground base and foundation project

Grade I on professional contracting for fire-fighting

Grade I on professional contracting for construction decoration

Grade I on professional contracting for construction M & E installation

Grade I on professional contracting for construction M & E installation

Grade I on professional contracting for ancient construction project

Grade II on professional contracting for bridge project

Grade II on professional contracting for tunnel project

Grade II on professional contracting for environmental protection project

Grade A for building construction

Grade A for fire facility design

Grade A for municipal industry

Professional Grade B on professional project survey for geotechnical engineering (material search, testing, monitoring and detecting)

Professional Grade A on professional project survey for geotechnical engineering (survey and design)

Grade B for labor service (project investigation)

Evidential testing

On-site inspection for main structure engineering: Inspection on file

Inspection for ground foundation engineering

Inspection for steel structure

Testing and inspection of traffic engineering

Grade I on professional sub-contracting for labor service

Grade II for real estate development

Grade II for property management