- Daehantrans Co.,Ltd.
- Address:# 7-11 Songdo-Dong, Yeonsu-Gu
- JE COMMUNICATIONS
- Address:2F, SAMJUNG B / D, 896-4, Daechi-dong, Gangnam-gu,
- TECHSIGN LIGHT PANEL CO., LTD.
- Address:# 2, 69-3, Sangdaewon-dong, Jungwon-gu
- Seonmyeong Enterprises Co.,Ltd.
- Address:Dawoo Maisonlivre BLDG 1017,Yeouido-dong ,Yeongdeungpo-gu
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