Sekisui Chemical Co., Ltd. engages in the manufacture of high-performance plastics for medical, automotive, and information technology industries; and residential housing construction. It operates through the following segments: Housing, Environment and Lifeline, High Performance Plastics, Medical, and Others. The Housing segment handles the construction, sale, and renovation of housing units. It also provides real estate and housing services. The Environment and Lifeline segment offers PVC pipes and fittings, pipe rehabilitation materials, reinforced plastic composite pipes, and synthetic wood. The High-Performance Plastics segment sells interlayer films for laminated glass, foamed polyolefin, tapes, fine particles for liquid crystals, photosensitive materials, and functional resins for infrastructure materials. The Medical segment covers clinical diagnostic reagents, clinical testing equipment, active pharmaceutical ingredients and intermediates. The Others segment covers film-type lithium-ion batteries. The company was founded on March 3, 1947 and is headquartered in Osaka, Japan.