Tokyo Electric Power Company Incorporated (The)(TEPCO). The Group's principal activity is the generation and distribution of electricity to residential, commercial and industrial customers in the Tokyo Metropolitan area. Other operations include information services such as computer data processing, the development and maintenance of software, communication services, electrical works, property management, tracking and the sale of petroleum and petroleum products. Electricity supply business accounted for 98% of fiscal 2002 revenues; information and communication business, nominal and other, 2%.