E&D Co.,Ltd. is a Korea-based company mainly engaged in the production and sale of catalyzed diesel particulate filters (CDPFs) and exhaust gas purification catalysts for automobiles. The Company operates its business through two segments. The CDPF and Catalyst segment is involved in the manufacturing and sale of CDPFs, catalysts for purification of exhaust gas of automobiles, parts for equipments related to catalysts. It also conducts research related to catalyst. The Secondary Battery Material segment is involved in manufacturing and sale of secondary battery materials for hybrid cars and electric vehicles. The Company distributes its products within the domestic market and to overseas markets, including China.