- i-Solid
- Address:Ilsan-Gu, Baksuk-Dong, 1323 Good Morning Tower
- Sinseung Tools Co Ltd
- Address:100-178, Galsan-Dong, Dalseo-Ku
- Great Success Company
- Address:# 239, Jurae-dong
- Woongchuen Ind. Co., Ltd.
- Address:# 409, Woolim E-biz Center, 280-21, Sungsu-dong2ga, Sungdong-ku
- BANDO INDUSTRIAL CORPORATION
- Address:451 Kwangduk-Ri
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