| Precision Inspection Service of Bridges (Central District) |
2006 |
Chungcheongbuk-do Road Management Office |
 |
| Precision Inspection Service of Songsan Bridge |
2006 |
Jeungpyeong |
|
| Precision Safety Diagnosis Service of Jeongdong Bridge |
2005 |
Eumseong |
|
| Precision Safety Diagnosis Service of Dojeon Bridge |
2005 |
Danyang |
|
| Precision Inspection Service of Hotan Bridge and 5 other sites |
2005 |
Chungcheongbuk-do General Construction Headquarters |
|
| Expansion and Pavement Project of Dolsan ~ Wudu Road Construction |
2017 |
Iksan |
|
| Cheongju Alternative bypass Route Project |
2016 |
Cheongju |
|
| Pavement expansion project of Sangri ~ Yongjin Road |
2014 |
Danyang-gun |
|
| The Highway 12 expansion project in the Damyang ~ Jiri mountain |
2014 |
Korea Expressway Corporation |
|
> Achievements > 
