620-11 Onam-ri, Onam-eup, Namyangju-si,, Incheon
Sejin building 2f. 226-8, Shinwall 1 dong Yangchun-ku, Seoul
206-6, 1-8 ho da. Sungin-dong Jongno-gu, Seoul
Room 806, IT Castle Bldg II, 550-1 Gasan-dong, Geumcheon-gu,, Seoul
138-26, Yunhui 2-dong, Seodaemun-gu,, Seoul
463-42 Gaehwa-dong, Kangseo-Ku,