Asahi Kasei (旭化成株式会社) is a company that manufactures and sells chemicals. It operates in three business sectors: Materials, Homes, and Healthcare. The Materials sector provides acrylonitrile, alkaline water electrolysis systems, engineering plastics, gas sensors, electronic compasses, and other products. The Homes sector offers order-built homes, real estate-related operations, house remodeling, and other services. The Healthcare sector specializes in pharmaceuticals and reagents development, hemodialysis, therapeutic apheresis, bioprocess, and transfusion products; as well as defibrillators, temperature management systems, and data management systems.