On May 25, 2012, we received an instruction document^* "Seismic Safety Evaluation of Unit 4 at TEPCO Fukushima Daiichi Nuclear Power Station (Instruction)" from NISA.

(Press release issued on May 25, 2012)

Based on the document, we have conducted a seismic safety evaluation of Unit 4 Reactor Building and reported the summarized result to the Nuclear and Industrial Safety Agency (NISA) of the Ministry of Economy, Trade and Industry today.

Attachment*
"Report on the Seismic Safety of Unit 4 Reactor Building at Fukushima Daiichi Nuclear Power Station in Consideration of the Partial Expansion of the Exterior Wall"（PDF 2.71MB）

^* The aforementioned instruction document and attachment are available only in Japanese. We apologize for any inconvenience this may cause.