Sumitomo Osaka Cement Co., Ltd. engages in the management and sale of cement business. It operates through the following business segments: Cement, Mineral Resources, Building Materials, Optoelectronics, Photoelectron, New Materials and Others. The Cement segment manufactures and sells cement and ready-mixed concrete. It also provides electric power in cement factory. The Mineral Products segment offers Limestone, dolomite, calcium carbonate, aggregate, silica powder. The Building Materials segment deals with- repair and reinforcement of concrete structures (materials, construction), various admixtures, heavy metal pollution countermeasures, fish reefs and seaweed beds, cathodic protection methods, various ground improvement works, PC (products, construction), Various Hume Pipes. The Photoelectron segment involves in the manufacture and sale of optical components and measuring instruments. The Advanced Materials segment offers ceramic products, functional films, and nanoparticle materi