Company name: Duksan General Science Co., Ltd. Representative: Cha Seong-il Business registration number: 599-87-01999 Mail-order business report: No. 2021-Seoul Dongdaemun-0612 Personal information manager: Hwang Seon-cheon Address : Room 201, 2nd floor, 3 Wangsan-ro 19na-gil, Dongdaemun-gu, Seoul (Taejong Building, Jegi-dong) 02576 Factory Address: 86-1 Hangsa-ri, Sang-myeon, Gapyeong-gun, Gyeonggi-do Phone : 02-957-3792 FAX : 02-957-3793 E-mail : dscsi@hanmail.net COPYRIGHT (C) Deoksan General Science Co., Ltd. ALL RIGHTS RESERVED.