 | Business license
| 
| Business license (copies) |
| Tax Registration Certificate
|  | Tax Registration Certificate (copies)
|
| The people's Republic of China organization code certificate
|  | The people's Republic of China organization code certificate(copies)
|
| The certificate of quality management system (English)
|  | The certificate of quality management system (Chinese)
|
|
3A credit rating (English)
| 
|
3A credit rating (Chinese)
|
|
The Inner Mongolia Autonomous Region science and Technology Award (Inner Mongolia Alatan tunnel) |  | Sichuan Province Science and Technology Progress Award (Zhegushan tunnel)
|
| Green building product selection of certificate | 
|
Green building selection of product catalog |
| Credit agencies code card |  | China thermal insulation energy saving material Association certificate |
