| 1998 |
 |
Certified ISO 9001 for Quality System (DNV, KQSC-353.98) |
| 1998 |
|
Registered Engineering Design Service Business for Electrical Works (No. Seoul E-2-118) |
| 1997 |
|
Registered Construction Supervision Business for Electrical Works (No. Seoul S-2-020) |
| 1997 |
|
Registered Company Trademark to Korea Intellectual Property Office (Registration No. 032170) |
| 1996 |
|
Appointed as a Professional Safety Inspection Institute (No. 63) |
| 1995 |
|
Appointed as a Design Consulting Supervision Service Business (No. 18) |
| 1994 |
|
Appointed as an authorized agent for Environmental Impact Assessment (No. Seo-006) |
| 1994 |
|
Registered as a General Construction Supervision Business Company to the Ministry of Construction and Transportation (Registration No. Jong-4) |
| 1994 |
|
Registered as an Overseas Construction Company to the Ministry of Construction and Transportation (Registration No.74) |
| 1993 |
|
Established Technical Institute of Engineering and Construction (TIOEC) by the company and registered to Korea Industry Technology Association (Registration No. 19931229) |
| 1993 |
|
Registered as an Institution for Traffic Impact Assessment (Ministry of Construction and Transportation (Registration No.3) |
| 1993 |
|
Declared as an Engineering Company to the Korea Engineering and Consultation Association (Registration No. 10-026) |
| 1992 |
|
Relocated office to Yangjae-dong 319-6, Seocho-gu, Seoul |
| 1991 |
|
Appointed as an authorized agent for Environmental Impact Assessment I. II. III by the Ministry of Environment (Registration No. 91038) |
| 1990 |
|
Acquired Oversees Construction Business License from the Ministry of Construction and Transportation (License No. 74) |
| 1990 |
|
Registered as Construction Supervision Business for Civil Works to the Ministry of Construction and Transportation (Registration No.2-24) |
