Asahi Kasei Corporation is a diversified Japanese conglomerate operating across three core segments: Material (petrochemicals, battery separators, engineering resins, electronic materials), Housing (prefabricated housing, construction materials including ALC, and real estate), and Healthcare (pharmaceuticals, medical devices including blood purification and critical care equipment). The company serves global markets through approximately 368 group companies, with key products including lithium-ion battery separators, mixed-signal LSIs, AED/cardiac care devices under ZOLL Medical, and the iconic 'Hebel Haus' prefabricated housing brand. Asahi Kasei leverages its vertically integrated chemical and materials capabilities alongside acquisitions in the U.S. and European markets to maintain competitive positions across its diversified business portfolio.