Tokyo Electric Power Company, Inc. (TEPCO) Managing Director Toshio Nishizawa (C) attends a news conference with President Masataka Shimizu (front L) and other company officials at the company head office in Tokyo May 20, 2011. TEPCO, operator of the crippled Fukushima Daiichi nuclear power plant, is set to appoint Nishizawa to replace President Shimizu, Kyodo News agency reported on Friday. REUTERS/Toru Hanai (JAPAN - Tags: DISASTER ENERGY HEADSHOT BUSINESS)