Company name: DDSM Co., Ltd. / CEO: Minseop, Han / Address: No. 706, Siwha Industrial Complex 2-mam, Jeongwang 2-dong, Siheung-si, Gyeongido / Business registration No.: 134-81-91012 / Contact: +82-31-498-0602 / Fax: +82-31-499-8450