Korea Electric Power Corporation (KEPCO) is an integrated electric utility company engaged in the transmission and distribution of electricity in the Republic of Korea. Its segments include transmission and distribution, nuclear power generation and thermal power generation and all others. The transmission and distribution segment, which is operated by KEPCO, comprise operations related to the transmission, distribution and sale to end-users of electricity purchased from its generation subsidiaries, as well as from independent power producers. The power generation segment, which operates through one nuclear generation subsidiary and five thermal generation subsidiaries, consists of operations related to the generation of electricity sold to KEPCO through the Korea Power Exchange. The all other segment comprise operations related to the plant maintenance and engineering service, information services, and sales of nuclear fuel, communication line leasing, overseas businesses and others.