Location
- Ulsan Head office : 904-Ho 362-11, Jongga-ro, Jung-gu, Ulsan, Republic of Korea
- Cheonan Test Laboratory : 173-64, Daeheung 1-gil, Seongnam-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do, Republic of Korea
- Gyeongsan Test Laboratory : 302-Ho 120, Gongdan 7-ro, Jillyang-eup, Gyeongsan-si, Gyeongsangbuk-do, Republic of Korea
