E. S. T Bldg. 229-15, Nonhyeon-dong, Gangnam-gu,
85-5,Dodang-Dong, Wonmi-Ku, Bucheon-si
72-2 Sikkum-ri, Yangji-myeon
104-9,Munji-dong ,Yuseong-gu
615,Daecheon-dong ,Dalseo-gu
JAS Bldge., 504-29, YounNam-Dong, Mapo-Gu
Room 3106, World Trade Tower Bldg., 159-1 Samsung-Dong, Kangnam-Ku
92-6,Yangjae-dong ,Seocho-gu
# 605 Haedong Bldg. , 154, Bangyi-Dong,
# 298-2, Gong-dan dong
# 91-3 Wangrim-Lo Bongdam-Eup
Rm206 AceTechno Tower, Guro-dong
62-16, 19th Street, Gamjeong-ro
# 914, E&C Dream tower
105-2305 DAE-DONG FAC. APT. SIMGOK-DONG
11F Lotte IT castle