| Hyundai Motor Company | www.hyundai.com |
| Kia Motors Corp | www.kia.co.kr |
| GM Daewoo Auto & Technology | www.gmdaewoo.co.kr |
| Renault Samsung | www.renaultsamsungm.com |
| Pyung Hwa Ki Gong Co., Ltd | www.phk.co.kr |
| Wezen Co., Ltd. | www.we-zen.co.kr |
| Doowon Heavy Indutrial Co., Ltd. | www.doowonhi.com |
| Rinnai Korea Co., Ltd. | www.rinnai.co.kr |
| Denso PS Corp. | www.densops.co.kr |
| Korea Sintered Metal Co., Ltd. | www.iksm.co.kr |
| Samhan Co., Ltd. | www.samhanltd.co.kr |
| PARTECHS Inc. | www.partecs.co.kr |
| Silla Engineering Co., Ltd. | www.sillaeng.co.kr |
| Topmetal Works Co., Ltd. | www.topmetal.co.kr |
| Shinkwang Ind. Co., Ltd | |
| Sungwoomold Co., Ltd. | www.sungwoomold.com |
| Shinyoung Hitech Co., Ltd. | www.sye2000.co.kr |
| Shinyoung Motech Co., Ltd. | www.symt96.co.kr |
| Hwashin Tech Co., Ltd. | www.hstech.co.kr |
| Shinyoung Co., Ltd. | www.shym.co.kr |
| Seojin Industrial Co., Ltd. | www.seojin.com |
