- JS Networks
- Address:Yeoksam-dong690-3
- IDM KOREA
- Address:232-135, Jangwi 1-dong, Seongbuk-gu SEOUL, KOREA
- Bora Optical Co.
- Address:1072,Woram-dong ,Dalseo-gu
- Toppla Co., Ltd.
- Address:456-1,Mijang-ri ,Samjuk-myeon ,Anseong-si
- DAIMYUNG S&S CO., LTD
- Address:Gojan
- Korea O.G.K. Co., Ltd.
- Address:261-6,Ganhyeon-ri ,Jijeong-myeon ,Wonju-si
- Lims Tech. Co., Ltd.
- Address:426-5,Janggi-dong ,Gimpo-si
- Songwon Chem & Ind Co.,Ltd.
- Address:213 YONGSU-RI,Chowol-eup ,Gwangju-si