- KOREA ACE CORP
- Address:# 804 Yanghwa-Neotel, 274-1 4-Ga Yangpyeong-Dong,
- Dong Ho
- Address:
- Taewon Steel Co., Ltd
- Address:Rm 808, Bando Bldg, # 36-14, Jungang-dong 4 Ga
- Leader System Co., Ltd.
- Address:617-28,Ganseok 4-dong ,Namdong-gu
- Dae se inernational co.,ltd.
- Address:RENAISSANCE BUILDING
- INES,INC.
- Address:100, Chomak-gil, Iljuk-myeon
- ALUCOS CO LTD
- Address:Siheung Circulation Center (8-205) , 984 Siheung 3-dong
- NP Metal
- Address:# 17, Sungjiro-22Gil, Dalseo-Gu
- cheongwoo tech
- Address:816-6 Osikdo-dong
- ID Corporation
- Address:
- JK Materials International Co., Ltd
- Address:702-10 Yeoksam-dong, Kangnam-gu
- J& (J-AND)
- Address:# 411 Dongnam Lakeville-1 718-2 Gojandong Danwongu
- Ki Rim Semitech Co.,Ltd.
- Address:
- K.Y.Marine Engineering Co.
- Address:Rm302,Sewang B/D, 20,Toseong-dong 5-ga ,Seo-gu
- WOORI CMC Corp.
- Address:5f Hyundai Bldg. , # 35-1, Mapo-Dong, Mapo-Gu