DKS Co. Ltd., formerly Dai-ichi Kogyo Seiyaku Co., Ltd., operates in five business segments. The Surface Acting Agents segment engages in the manufacture and sale of nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants. The Amenity Materials segment engages in the manufacture and sale of sucrose fatty acid esters, cellulose polymeric materials, vinyl polymeric materials and acrylic polymeric materials. The Urethane Materials segment manufactures and sells polyester polyols, urethane prepolymers and urethane systems. The Functional Materials segment manufactures and sells photo-curable resin materials, waterborne urethane resin, incombustible materials and amide lubricants. The Electronic Device Materials segment manufactures and sells conductive paste for electronic components, pellets for injection moldings and functional inorganic materials.