TODA KOGYO CORP. is a Japan-based company that is active in the manufacture of electronic materials. It has three segments. The Functional Pigment segment is engaged in the manufacture and sale of color pigment and functional pigment. The Electronic Materials segment is engaged in the manufacture and sale of lithium-ion battery positive-electrode materials, lithium-ion and nickel hydride materials, ferrite materials and compounds, as well as electric components. The Engineering segment is engaged in the environmental engineering business, such as treatment of discharged water, exhaust gas and waste materials, as well as related business, including the production, sale and reforming of groundwater contamination detergents, water treatment adsorbents and gas processing catalytic agents. As of March 31, 2014, it had 20 subsidiaries and 13 associated companies.