Head office address
156, Osongsaengmyeong 5-ro, Yeonje-ri, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, Republic of Korea
Head office tel
(Accreditation) : 043-928-0116
(Technical) : 043-928-0152
Support office address
Seoul : 5F, 651, Olympic-ro, Gangdong-gu, Seoul, Republic of Korea
Busan : 3F, 232, Hakgam-daero, Sasang-gu, Busan, Republic of Korea
Gyeong-in : 9F, 111, Anyang-ro, Manan-gu, Anyang-si, Gyeonggi-do, Republic of Korea
Daegu : 5F, 487, Dongdaegu-ro, Dong-gu, Daegu, Republic of Korea
Gwangju : 5F, 147, Geumnam-ro, Dong-gu, Gwangju, Republic of Korea
Daejeon : 16F, 246, Bomun-ro, Jung-gu, Daejeon, Republic of Korea
Gangneung-si : 5F, 7, Jukheon-gil, Gangneung-si, Gangwon-do, Republic of Korea
Jeju-si : 16, Nohyeong 11-gil, Jeju-si, Jeju-do, Republic of Korea
Support office tel
(Seoul) 02-860-6900
(Busan) 051-933-0100
(Gyeong-in)031-390-5200
(Daegu) 053-950-1500
(Gwangju) 062-380-0500
(Daejeon) 042-251-1144
(Gangneung-si) 062-222-5201
(Jeju-si) 064-749-5210