• Business License
    • Certificate of Information and Communication Contractors
    • Certificate of Electrical Contractors
    • Certificate of Subcontractor of KT

    • ISO 9001 Quality Management System
    • ISO 14001 Environment Management System
    • Certificate of KR Class
    • Certificate of RINA Class
    • Certificate of NK Class
    • Certificate of ABS Class
    • Certificate of BV Class
    • Certificate of Industrial-Educational Cooperation Agreement with Dong-A University
    • Certificate of Industrial-Educational Cooperation Agreement with Korea Maritime University
    • Award certificate of Korea Communications Commission
    • Award certificate of Korea Communications Agency
    • Award certificate of Public Procurement Service