Certifications
| Number | Title | Certification Authority | View Certification |
|---|---|---|---|
| 7 | Certificate of Registration Environmental Management System ISO 14001:2015 | GNS CO., LTD. |  |
| 6 | Certificate of Registration Quality Management System ISO 9001:2015 | GNS CO., LTD. |  |
| 5 | Atmospheric Environment Specialized Construction Business License (No. 250) | Gyeonggi-Do |  |
| 4 | Company-Affiliated Research Institute Certificate | KOITA |  |
| 3 | Myeong Sung 1st Factory Factory Registration Certificate | KICOX |  |
| 2 | Facilities & Mechanical Works License | Gimpo |  |
| 1 | Domestic Corporation Business License | Gimpo |  |