Category Subsidiary company Homepage
Holding company
 SeAH Holdings Corporation
 http://www.seahholdings.co.kr
Manufacturing Steel&Metal
 SeAH Steel Corporation
 http://www.seahsteel.co.kr
SeAH Special Steel Co., Ltd.
 http://www.seahsp.co.kr
SeAH Besteel Corporation
 http://www.kss.co.kr
Motor parts & Welding
 		Korea Bundy Corp.
 http://www.bundy.co.kr
ESAB SeAH Corp.
 http://www.esab.co.kr
IT SeAH Communications Co., Ltd.
 http://www.snet.co.kr
SeAH Information System Co., Ltd.
 http://www.seahinfo.co.kr
DREAMLINE Co., Ltd.
 http://www.dreamline.co.kr
Energy&Service Kangnam City Gas Co., Ltd.
 http://www.kangnamgas.co.kr
SeAH E&T Corporation
 http://www.seahent.co.kr
SeAH Turbo Engiceering
 http://www.seahcompressor.com
Royal Transportation Co., Ltd.
 http://www.seahlogis.co.kr