1 jang kyo dong jung Ku , Seoul
3F, Samhyoung Castle Bldg No.48-1 Jamwon-Dong Seocho-Gu, Seoul
649-12, Sangdo-dong Pohang-si, Gyeongsangbuk-do
eochodong seochogu, Seoul
1F, Crean-wrap B/D, 277-22, Nonhyeon-dong Gangnam-gu, Seoul
3Fl., Kyungsan Bldg., 119-9, Samsung-Dong, Kangnam-Gu,, Seoul
#489-9 6Fl Jinsan B/D Doonchon-dong Kangdong-gu, Seoul
35-16, Pirundae-ro Jongno-gu, Seoul
301 Daerung 3-cha, Suite 448, Gasan-dong, Gumcheon-gu, , Seoul
3F, 2, 22Dong Sunin Plaza 16-1, Hankang-Ro Yongsan-Gu, Seoul
5F and 6F, Asan Venture Tower, 315-6, Yangjae-dong Seocho-gu, Seoul
6F. Korea Federation of Teacher's Association(K.F.T.A), 142 Umyeon-dong Seocho-gu, Seoul
8F B-Block, SK twin-tech-tower, 345-9 Gasang-dong, Geumcheon-Ku Seoul, Seoul
C303 Hi-Tech Venture Center 647-26, Deungchon-dong Gangseo-gu, Seoul
4F, 1487-7, Samsan-dong, Nam-gu,, Ulsa
#1002 Ace High-End Tower 5th, 226, Gasan digital 1-ro, Geumcheon-gu, , Seoul
3F CoreB/D, 8-1, Sunae-dong, Seongnam-si, Bundang-gu,, Gyeonggi-do
Gyeonggi Small & Medium Business Center #906-5 Lui-dong, Yeongtong-gu Suwon, Gyeonggi-do
142-49 Taeyang Bldg., 3F, Samsung-dong, Gangnam-gu,, Seoul