- Tekno Tubi
- Teknomega
- Technokabel
- Taehwatrans
- T.G. Filter
- Swedish Neutral
- Supervane
- Steelhead
- Stansomatic
- Sotras
- UNIMOTION
- HS CORPORATOIN
- EOFE
- YEST
- U-JIN
- YURA
- JINSUNG ELECTRONICS
- SAM SAM
- JUNG KYUNG
- ABICO
- TERRASEM
- SEONG JI
- DACELL
- TELCON-RF
- EL TECH
- PM OTS
- Shinhan
- DAEIL
- Daejung
- ANA ENG
- Shineui
- HY
- DaeJu
- KMG
- UTEK
- Kumhwa