- SEPA
- Address:#1114, 103dong,Digital Empire2,Yongtong-gu,
- TR CO., LTD.
- Address:79, Sinwol-dong, Yangcheon-gu
- UnB Tech
- Address:sosa-gu
- Sam Il Components Co., Ltd.
- Address:337-3,Gil-dong ,Gangdong-gu
- Fluxlite Co., Ltd.
- Address:435-6,Nonhyeon-dong ,Namdong-gu
- Lasemtech.inc.
- Address:358-1, Sin-dong, Yeongtong-gu
- Safeline Co., Ltd.
- Address:HangSin-Dong 707-2
- SMC Co.,Ltd.
- Address:Rm632 The O Valley, 555-9 Hogye-Dong, Dongan-Gu
- INFINEX Corp.
- Address:
- TWIN ELECTRONICS CO
- Address:265-2 Woncheon-dong, Youngtong-gu,
- DONG KWANG ELECTRONIC
- Address:351-2 Simgok 3-dong, Wonmi-gu
- KIMS INDUSTRY
- Address:Leaders Bldg, # 13F, 1599-11, Seocho-dong, Seocho-gu, Seoul, Korea
- Finecess co ., Ltd
- Address:# 1410 SK (n) Technopark Biz Dong, Sangdaewon-dong,
- JKsystech
- Address:
- Seokwang Light Corp.
- Address:109-3, SEOLUN-DONG, POCHEON-SI
- mtsds
- Address:150-1 Youngjeongri, Jingeon-eup,
- Sl Lighting Corporation
- Address:887-4 Geomdan-dong,Geomdan-dong ,Buk-gu
- GJINTOPS Co., Ltd
- Address:bukgu-wolchul dong 970-53
- FUTURELIGHT CO., LTD.
- Address:Dongu Bldg 4F, 901-39, Hogye-Dong, Dongan-Gu
- SHINBO ELECTRIC
- Address:601, BangBang Plaza, 876-5, Jeongja-Dong, Jangan-Gu