Teijin Ltd. engages in the management of its group companies that are involved in the environment and energy, safety and protection, information and electronics, transportation, and healthcare businesses. It operates through the following segments: Advanced Fibers & Composites Business, Electric Materials & Performance Polymer Products Business, Products Converting Business, Healthcare Business and Others. The Advanced Fibers and Composites Business segment handles the manufacture and sale of polyester, aramid, and carbon fiber products. The Electric Materials & Performance Polymer Products Business segment manufactures and sells plastic and resin products from polycarbonate resin and polyester film. The Products Converting Business segment involves in the planning, production and sale of chemical products and textile products. The Healthcare Business segment deals with the manufacture and sale of pharmaceuticals and home medical equipment. It also provides home healthcare services. The Others segment includes raw materials and polymerization. It also offers information technology services branching out in internet-based digital content distribution. The company was founded by Seita Kumura on June 17, 1918 and is headquartered in Osaka, Japan.