- SDS Korea
- Address:1029-30 Hogye-dong, Dongan-gu
- LKO LIGHTING CO LTD
- Address:3F, JUNG-SAN, 1026-8, SANBON-DONG
- Luxense
- Address:Dongsomun Rd
- youngil
- Address:1106 Haandong
- SOOYANGCHEMTEC CO LTD
- Address:1204 Kolon Digital Tower, 222-7 Guro-dong, Guro-gu
- SUNGWOO TSD CO.,LTD
- Address:
- Lasemtech.inc.
- Address:358-1, Sin-dong, Yeongtong-gu
- SMC Co.,Ltd.
- Address:Rm632 The O Valley, 555-9 Hogye-Dong, Dongan-Gu
- TWIN ELECTRONICS CO
- Address:265-2 Woncheon-dong, Youngtong-gu,
- 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