Korean Used Car Auto Parts, Limited
- Exports Korean and Japanese car spare parts and engines. Based in Youngin City.
- http://www.koreausedcarautoparts.com/

Hyundai Tooling Center
- Manufactures molds and stamping dies to produce automotive components as well as jigs, fixtures, and automated equipment for assembly body shops.
- http://tooling.hyundai-motor.com/

Seojin Industrial Co., Ltd.
- Maker of frame and body parts. Factories nationwide. [Korean, English]
- http://www.seojin.com/

Sungwoo Automotive Co., Ltd.
- Designs and manufactures cast iron engine parts, manifolds, and alloy wheels. Headquartered in Seoul with factories in Chungju and Pohang.
- http://www.swa.co.kr/english/

Corea Auto Dismantling Corporation
- Seller of used parts. Six branches in the metropolitan cities. [Korean, English]
- http://www.autocorea.com/

Hwashin Co., Ltd.
- Nationwide group of manufacturing concerns. [Korean, English, Chinese]
- http://www.hwashin.co.kr/

Threestar Co., Ltd.
- Manufacturer of heat transfer products. Locations in Seoul and Changwon. [Korean, English]
- http://www.threestar.co.kr/

Michang Cable and Sepoong Controls
- Maker of control cables and gas springs. [Korean, English, Japanese]
- http://www.mccable.com/

Mando Corporation
- Product lines include suspension, steering and brake systems. Based in Gunpo with factories nationwide. [Korean, English, Chinese]
- http://www.mando.com/

Shinchang Electrics Co., Ltd.
- Maker of lock sets, remote keyless entry and immobilizer systems, combination and power window switches. [Korean, English]
- http://www.schang.co.kr/

Korea Corp. Co., Ltd.
- Maker of hub caps, and disc clutch hubs. Locations in Seoul and Daegu. [Korean, English]
- http://koreacorp.koreasme.com/index_e.html

Halla Climate Control Corporation
- Maker of A/C systems. [Korean, English]
- http://www.hcc.co.kr/

Myung Hwa Ind. Co., Ltd
- Maker of a variety of pump and brake parts. Domestic plants in Seoul, Ansan and Ulsan. [Korean, English]
- http://www.myunghwa.com/

Yoosung Enterprise Co., Ltd.
- Maker of piston rings, cylinder lines, valve guides, and camshafts. Plants nationwide. [Korean, English]
- http://www.ypr.co.kr/