China Machinery Engineering Corporation (CMEC, 中国机械设备工程股份有限公司) is a company that provides engineering contracting and industrial development solutions.
DL Holdings (주식회사, formerly Daelim Industrial) is a company that specializes in the research and development, manufacture, wholesale, retail, and distribution of petrochemical products.
CTI Engineering (株式会社建設技術研究所, Construction Technology Research, formerly known as Kensetsu Gijyutsu) is a company that provides consulting engineering services.
H.G. Infra Engineering (formerly known as H.G.Infra Engineering, HGIEL) is an infrastructure development company that is engaged in engineering and construction services.