10F KT Chungcheongbuk Customer Center, 1390 Bunpyeong-dong, Heungdeok-gu, Cheongju-si,, Chungcheongbuk-do
2nd Fl. KAIS Bldg. 1657-5, Seocho-dong, Seocho-gu, Seoul 137-881, Republic of Korea Seoul, Seoul
202 East Cylux, 716 Suseodong Gangnamgu, Seoul
602 Samyoung bldg 144-22 Samseong 2-dong Gangnam-gu, Seoul
South Korea,
# 101, 7-5, Jeo-dong, 2-ga
Room 601, Hyunjin Bd. 300-65, Seongsudong-2ga,
5F. 102-6 Inhyeon-dong 1ga
76-4, Jamwon-dong Seocho-gu, Seoul
68-19 Chongdam, Kangnam Seoul,
Manangu anyang3dong 908-4, Jinheung5th, 3-603
27, Seongseogongdan-ro 11-gil, Dalseo-gu, Daegu 42714 Korea
3f, 96-1, Inhyun-Dong, Jung-Gu
54, Daedeok-daero 220beon-gil, Seo-gu,, Daejeon
388,3-Ga Dangsan-Dong, Youngdungpo-Gu
5F, Ace Techno Tower B / D, 684-1
50-12 Sungsan-Dong 1F