ASAHI KASEI CORPORATION is mainly engaged in material business, housing business and others. It has three business segments. The Materials segment includes fiber business, including capra fiber, polyurethane fiber, nonwoven fabric, nylon 66 fiber, etc., chemical business, including petrochemicals, high performance polymer, high performance materials and consumer goods, separators for lithium secondary batteries, separators for lead storage batteries, mixed signal LSI and other electronic businesses. The Housing segment includes housing business, such as construction contracting, real estate, renovation, and other housing related businesses, and the building materials business, including lightweight aerated concrete, heat insulation materials, foundation piles, structural materials, etc. The Healthcare segment consists of pharmaceuticals such as medical drugs and diagnostics, medical business and critical care business. The Company also includes engineering businesses and others.