- Samsung Knitting Needle Co., Ltd.
- Address:997-2, KEUMSAN-RI, WAEGWAN-UP, CHILGOK-GUN
- Samatron Co., Ltd.
- Address:782-7,Wonsi-dong ,Danwon-gu, Ansan-si
- Goldtel Co., Ltd.
- Address:970-44, Wolchul-Dong, Buk-Gu
- Heat Metal Fiber
- Address:485 Sindong
- YDK Litz Wire mfg.
- Address:8th fl. , Dongkyung Bldg. , 824-19 Yeoksam Kangnam
- YOUNG LIM ELECTRONICS
- Address:71-1 Yang Beol-ri, Opo-yup
- Global K 1 Co., Ltd.
- Address:15f Kfpa Bldg. , 35-4 Yeouido-Dong, Yeongdeungpo-Gu
- Man Ho Rope Mfg. Co., Ltd.
- Address:1660-11,Songjeong-dong ,Gangseo-gu
- Yougar Enterprises Inc.
- Address:4F, # 36-22
- B2K WIRE & ROPES
- Address:# 1033-47, Jang Rim, Sa Ha Gu
- DTL
- Address:Millenium-Road 565
- Yeon-Woo International Co.,Ltd.
- Address:1660, Banyeo-1dong
- Hanme Corporation
- Address:Sakjooro
- DooSeong cable
- Address:151-6, Mok sang Dong, Daedeok-Gu
- SUHIL Co.,Ltd
- Address:135-1401, Ujangsan Hillstate, Ujangsan-Dong, Kangseo-Gu
- MIDKOREA CORP.
- Address:JAESEUNG BLDG. 7F, YOEKSAM-DONG, GANGNAM-GU
- KOOK JAE ENGINEERS LTD.
- Address:911 WOOIN BLDG 2# 746
- Leaders Trading
- Address:# 702, Doosan Bearstel B / D, 1319-11, Seocho-dong, Seocho-ku
- Daekyeung Nanotech Co., Ltd.
- Address:
- JW INTL' Corporation
- Address:# 302, 129-8, Garak-dong,