Aisin Seiki is engaged in the manufacture and sale of automobile parts and housing-related equipment. Co.'s principal products are engine parts, including water pumps, pistons and intake manifolds; automatic transmissions, and manual transmissions; brake and chassis parts, such as brake master cylinders, disk brakes and antilock brake systems; door locks and power backdoor systems, car navigation systems, parking support systems and intelligent parking support systems; housing-related equipment, such as shower toilets, beds, automatic wheel chairs and gas heater pump air-conditionings; and fiber laser. Co. is also engaged in the civil construction and petroleum sales businesses.

Denso and its affiliates are mainly engaged in the manufacture and sale of automobile electronic, electrical parts, and other components. Co.'s principal business segments are powertrain control systems, electronic systems, thermal systems, information and safety systems, small motors, industrial systems and consumer products. Co.'s principal products include starters, alternators, engine management systems, components for gasoline, diesel and electric hybrid vehicles, engine ECUs, hybrid ICs, air conditioners, radiators, remote keyless entry controllers, car navigation systems, car-mounted ETC devices, motors, bar code handy scanners and industrial robots.

Toyota Industries is mainly engaged in the manufacture and sale of automobiles, industrial vehicles and textile machinery, as well as logistics business. Co. operates in three business segments: automobile, industrial vehicle and textile machinery. The Automobile segment manufactures and sells automobiles, engines and compressors for automotive air-conditioners, foundry pieces and electronic equipment. The Industrial Vehicle segment provides forklift trucks, warehouse equipment, automatic warehouse, vehicles for high-place work. The Textile Machinery segment offers weaving machines and spinning machines, as well as yarn quality measurement equipment and cotton grading equipment.

Toyota Motor is an automobile manufacturer. Co. is primarily engaged in the design, manufacture, and sale of sedans, minivans, compact cars, sport-utility vehicles, trucks and related parts and accessories throughout the world. Co. provides financing, vehicle and equipment leasing and certain other financial services primarily to its dealers and their customers to support the sales of vehicles and other products manufactured by Co. Co.'s principal business segments are automotive operations, financial services operations and other operations. Co. sells its vehicles in approximately 190 countries and regions, and markets for its automobiles in Japan, North America, Europe and Asia.

Toyota Tsusho is a general trading company. Along with its subsidiaries and affiliates, Co. provides general steel products, specialty steel products, construction steel products, non-ferrous metal products and alloys iron; machine tools, industrial machines, information communication equipment and electronic devices; passenger vehicles, business vehicles, motorcycles, trucks, buses and automobile parts; petroleum products, liquefied petroleum gas, coal, oil and natural gas products; feed materials, processed food and alcohol drinks; condominiums and commercial buildings facilities, furniture and housing equipment.