- Jinno International Co.
- Address:NO.200-4,Paho-dong ,Dalseo-gu
- Jazzle Enterprise Co.,Ltd
- Address:571-16 Yonnam-dong,Donggyo-dong ,Mapo-gu
- JPNC Inc.
- Address:(Dujeong-dong Palacepia Bldg. Suite 616) 9, Dujeongsang-ga 2-gil,
- POLYVISION CO.,LTD
- Address:45-4 Daeyui-ri, Bugi-myeon
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