Technique Possession Status
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Current status of licenses
| Classification | Type of license | Date of issuance |
| General construction license | Industrial environmental facilities construction | 2013.05.10 |
| Civil engineering & construction | 2014.05.07 | |
| General construction license | Machine equipment construction | 1983.02.03 |
| Gas facilities : Class 1 construction | 1997.03.31 | |
| Pavement construction | 2002.10.15 | |
| Earth work | 2009.09.10 | |
| Water and sewage facilities construction | 2016.06.02 | |
| License for electric work | Electrical construction | 2013.03.26 |
| License for fire-fighting | Professional fire-fighting facilities construction | 2015.10.27 |
| Energy related license | ESCO | 2016.02.22 |
Current Status of licenses
| Classification | Gas | Construction | Civil Engineering | Hazard | Machine | Electricity | Safety |
| Technician | 4 | 3 | 1 | ||||
| Industry Engineer | 8 | 1 | 1 | 5 | 1 | 4 | |
| Operator | 2 | 2 | 3 | 2 | 2 | 4 | |
| Master Mechanic | 1 | 1 |
| Classification | Technician | Industry Engineer | Operator | Master Mechanic |
| Gas | 4 | 8 | 2 | 1 |
| Construction | 1 | 2 | ||
| Civil Engineering | 1 | 3 | ||
| Hazard | 3 | 5 | 1 | |
| Machine | 1 | 2 | ||
| Electricity | 1 | 2 | ||
| Safety | 4 | 4 |