- ECO Solution
- Address:744-2 Sangdo1-dong, Dongjak-Ku
- Kpi Limited
- Address:25-2,Songgok-ri, Hyangnam-myeon ,Hwaseong-si
- HEPHZIBAH CO.,LTD.
- Address:1385-15, Juang5-dong
- TRI DELTA CO., LT
- Address:Gasan Dong
- TCNET
- Address:187-7, Dodang-Dong Wonmi-Gu
- WP KOREA CO.,LTD.
- Address:#3806, Hyundai 41 tower, 917-9
- KET corporation
- Address:420-2 Eo0eum ri Eonyang Eup Uljukun
- Hyolim Corp.
- Address:RM 308, KAEKYO B/D, 56-4, WONHYORO3-GA, YONGSAN-GU
- O-Sung Electric Machinery Co., Ltd.
- Address:111-3, Yeongtae1-ri, Wollong-myeon