YONDENKO CORPORATION is primarily engaged in facility construction business. It operates in three business segments. The Facility Construction segment is engaged in the construction of electricity distribution line works, electricity works, air-condition and piping works, information communication works, electricity transportation and civil engineering works, the provision of drawing services by using the computer aided design (CAD) systems. The Leasing segment is involved in the leasing of industrial machinery, vehicles and fixtures. The Others segment is engaged in the development and sale of CAD software, the sale of construction materials, the inspection business and the operation of water quality surveys. As of March 31, 2014, the Company had 16 subsidiaries and one associated company.