Sekisui Chemical Co Ltd is mainly engaged in housing business, environment and life line business, high-performance plastics business and medical business. The Company operates in four segments. The Housing segment is engaged in the manufacture, construction and sale of steel-frame and wood-frame modular housing, the sale of land for sale, renovation, real estate brokerage, rental management, interior and exterior sales and construction. The Environment & Life Line segment is engaged in the manufacture, sale and construction of polyvinyl chloride pipes and fittings, polyethylene pipes and fittings, plastic valves and others. The High-Performance Plastics segment manufactures and sells liquid crystal particles and photosensitive materials. The Medical segment manufactures and sells clinical diagnostic reagents, automatic analyzers and blood collection tubes. The other businesses include the provision of services for film-type lithium-ion batteries and products.