Dongbo Chain Ind. Co., Ltd. - Power transmission and conveyor chains. [Korean, English] - http://www.dongbochain.com/
Castec Korea Co., Ltd. - Manufactures a variety of automotive parts. Company profile with information on products and manufacturing process. [Korean, English] - http://www.castec.co.kr/
Kukdong Jeyen Company, Ltd. - Maker of anti-freeze, brake fluid, and grease. [Korean, English, Chinese] - http://www.jeyen.co.kr/index_e.html