- trade associations Chanwon
- Address:7-4 yongho-dong, echang-gu
- ABLE TECH Inc
- Address:180-5, Shaeum-dong, Icheon-si
- Mirae tng
- Address:# 314 Ga-dong, Shinguro Sang-ga, 610-8
- B.J.Technology
- Address:724-4,Wonsi-dong ,Danwon-gu, Ansan-si
- Pion Co., Ltd.
- Address:47-10 Wonmi-dong, Wonmi-gu,
- Elcotec Co., Ltd
- Address:Room 31-325, Siheung Trading Center, Siheung3-dong, Gumcheon-gu
- Gooma Korea Co.,LTD
- Address:# 604, Dongwon-Blng 101-7, Shingdang-Dong
- Duocom Industries Inc.
- Address:47-3,Yeondasan-ri ,Gyoha-eup ,Paju-si
- Newgenbit Co.Ltd.
- Address:940-10 Daechi-Dong, Kangnam-Ku, Seoul, Korea
- VK Bogos Corporation
- Address:Ilsan
- WT Microelectronics Korea
- Address:3f, National Health Insurance Co. Bldg. , 1603, Burim-Dong, Dongan-Gu
- JNJ Cooperation Co. Ltd.
- Address:# 699-7 Choji-Dong Danwon-Gu
- GNC materials inc
- Address:# 506, 5F, Miwon BLDG, 43, youido-dong, Youngdungpo-Gu
- Hyundae Hitec Co.,Ltd.
- Address:382-1,Jinu-ri ,Docheok-myeon ,Gwangju-si
- C&P INSTRUMENT.co.,ltd
- Address:4F Hojeong BD. 834-20 Yeoksam-Dong
- Sbc Bearing Co., Ltd.
- Address:851-5, Oe-Dong,
- Dai Han Labtech Trading Corp.
- Address:247-16 Gagok-ri,Gagok-ri ,Hwado-eup ,Namyangju-si
- EFN furnace company
- Address:4F, 288-46, Seong Su-Dong 4 Ga, Seong Dong Gu, 144-844, Seoul, Korea
- IONTICS CO LTD
- Address:# 410 Gyeonggi R & Db Center, 906-5, Iui-Dong, Yeongtong-Gu
- OD Hi tech
- Address:# 810-3 naeson-dong