- Business
- Sumitomo Osaka Cement Co., Ltd. Sumitomo Osaka Cement Co., Ltd. manufactures and sells cement and related construction materials primarily in Japan with international operations. The company operates through seven segments including cement, which produces assorted cements such as ordinary Portland cement and blast furnace slag cement, ready-mixed concrete, cement-based solidification materials, and provides electric power supply and recycling of raw materials and fuel; mineral products encompassing limestone, dolomite, calcium carbonate, aggregates, and silica powder; building materials featuring repair and reinforcement materials for concrete structures, admixtures, heavy metal pollution countermeasures, fish reefs, seaweed beds, cathodic protection methods, ground improvement works, precast concrete products, and Hume pipes; optoelectronics involving optical components and measuring instruments; advanced materials offering ceramic products, functional films, and nanoparticle materials; new materials including antibacterial agents, cosmetic materials, and functional paints; and others such as real estate leasing, engineering, and software development. Sumitomo Osaka Cement Co., Ltd. targets construction, infrastructure, civil engineering, semiconductor, cosmetics, and real estate sectors, with facilities including cement plants and mines across Japan and expanding presence abroad. Founded in 1907 through predecessors and formed via the 1997 merger of Sumitomo Cement Co., Ltd. and Osaka Cement Co., Ltd., the company is headquartered in Tokyo, Japan. In September 2025, it signed a share subscription agreement to acquire a 15% stake in Philcement Corp., a PHINMA Corporation subsidiary in the Philippines, supporting the latter's expansion including a new 2Mt/yr integrated cement plant in Davao del Norte set for commissioning in 2026, with the transaction expected to close by year-end while PHINMA retains majority control.