Electric Power Development Co., Ltd. is mainly engaged in electricity generation business. The Company operates in four business segments. The Electricity segment engages in power generation business including hydroelectric power generation, thermal power generation and wind power generation, as well as provision of electricity. The Electricity-Related segment engages in design, installation, maintenance and repair of electrical power equipments, the port operation of fuel and coal ash, the coal mine development, the import of coal, the procurement and manufacture of biomass fuel, the operation of public health facilities, as well as the provision of computer services. The Overseas Operation segment is in the operation of electrical power generation investment business and other related businesses, engineering and consulting businesses in overseas. The Others segment engages in new electricity business, environment-related business and others.