- Duck-Il Ind Co., Ltd.
- Address:537-5,Segyo-dong ,Pyeongtaek-si
- Sung Jin Techwin Co., Ltd.
- Address:256-8,In-dong ,Dong-gu
- Cjb Electronics Co.,
- Address:# 1104, Woolim Lions 2-cha, 680, Gasan-dong, Geumcheon-gu
- HS POWER CO LTD
- Address:566-16, Suyu-Dong, Kangbuk-Gu
- hwayoung enterprise
- Address:100-22, onsudong, gurogu
- LG INDUSTRY
- Address:2126-4 Hwabuk 1-dong
- TACT Electronics Co.,Ltd
- Address:938-17 Dalsan-li, Junggan-myon
- DAEGU SPECIAL METAL CO
- Address:100-62 Galsan-dong,Galsan-dong ,Dalseo-gu
- E.G Incorporated
- Address:Tops-venture-tower 3FL,Seocho-dong ,Seocho-gu
- Namae Elecrotronics Inc.
- Address:436-7 Nonhyeon-dong,Nonhyeon-dong ,Namdong-gu
- SMART DOOR SYSTEM
- Address:# 644-5, I-Dong, Sangnok-Gu,
- Daehan Nakagawa Ind. Co., Ltd.
- Address:990-3,Gaya-eup ,Haman-gun
- SEJUNG ELECTRONICS
- Address:# 604 Hwasin Building, Simgok-dong, Wonmi-gu,
- Dae Ryuk Co., Ltd.
- Address:530,Samgye-ri, Pogok-myeon, Yongin-si
- Dong Yang EEC Corp.,Ltd.
- Address:460-12 Bo Dong-ri Dae Deok-myen
- Pyungil Co., Ltd.
- Address:1475-10 Gwanyang 2-dong,Gwanyang 2-dong ,Dongan-gu, Anyang-si
- Dongyung Industrial Co., Ltd.
- Address:392-1, Daehwa-dong, Daeduck-ku
- Chunji Tek
- Address:#9,Youngchang Techno Town, 564-11, Gajwa-dong ,Seo-gu
- Hyundai Sangsa Corp., Ltd.
- Address:402, 4th Fl., Seok Woo Bldg., 47-4, Insoo-Dong, Gangbuk-Gu
- Seojin Instech
- Address:317-18, Seongsu2ga 3dong