The Highest Level (Jia Ji in Pinyin) for Engineering Supervision Qualifications for Projects for Highways and Super Long Tunnels and Super Large Bridges, granted by the Ministry of Transport of the People's republic of China

The Highest Level (Jia Ji) for Engineering Test and Detection Qualifications for Highway and Waterway Engineering Materials, granted by the Ministry of Transport of the People's Republic of China

The Highest Level (Jia Ji) for Engineering Design Qualification for Highway Engineering granted by the Ministry of Housing and Urban-Rural Development

The Second Highest Level (Yi Ji in Pinyin) for Engineering Design Qualification for Highway Traffic Engineering granted by the Ministry of Housing and Urban-Rural Development

The Second Highest Level (Yi Ji in Pinyin) for Engineering Supervision Qualification for Urban Road and Municipal Utility Engineering Projects, granted by the Ministry of Housing and Urban-rural Development of the People's Republic of China

The Second Highest Level (Yi Ji) for Engineering Survey Qualification, granted by the Ministry of Housing and Urban-rural Development of the People's Republic of China

China Metrology Accreditation (CMA) granted by Shandong Quality and Technical Supervision Bureau

Quality Management Certificate ISO9001

Environmental Management System Certificate of Conformity ISO14001

Occupational Health and Safety Management System Certification OHSAS 18001