On April 13, 2011, we received a written instruction (*) "Collection of 
report pursuant to the Provisions of Article 67, paragraph 1 of the Act on 
Regulation of Nuclear Source Materials, Nuclear Fuel Materials and 
Reactors" from Nuclear and Industrial Safety Agency, Ministry of Economy, 
Trade and Industry. We implemented study regarding current earthquake-
proof safety and reinforcement of reactor building for Unit1 and 4 at 
Fukushima Daiichi Nuclear Power Station, and summarized the results. On 
May 28, 2011, we reported the result to the Agency.
                 (Already announced on April 13, 2011 and on May 28, 2011)

Thereafter, based on the instruction, we implemented study regarding 
current earthquake-proof safety and reinforcement of reactor building for 
Unit3 at Fukushima Daiichi Nuclear Power Station, and summarized the 
results. Hence we announce that we reported to the Agency today.


○Attachment1:Outline of "Reports about the study regarding current 
              earthquake-proof safety and reinforcement of reactor 
              buildings at Fukushima Daiichi Nuclear Power Station (2)" 
                                                            (PDF 189KB) 
○Attachment2:The report on the investigation into the current seismic 
              safety and reinforcement of the reactors at Fukushima 
              Daiichi Nuclear Power Station (No.2)(PDF 982KB) 

*Written Instruction 
Regarding Collection of a Report Pursuant to the Provisions of Article 67, 
paragraph 1 of the Act on Regulation of Nuclear Source Materials, Nuclear 
Fuel Materials and Reactors
                                                         04.12.2011 N No.2
                                                          April 13th, 2011
The ministry orders your company to submit a report on the items listed 
below, pursuant to the provisions of Article 67, paragraph 1 of the Act on 
Regulation of Nuclear Source Materials, Nuclear Fuel Materials and 
Reactors (Act No. 166 of 1957).
If there are grievances regarding this action, pursuant to the provisions 
of Article 6 of the Administrative Appeal Act (Act No. 160 of 1962), an 
administrative appeal may be made, in writing, to the Minister of Economy, 
Trade and Industry within 60 days from the date one day after the day on 
which your company became aware of the fact that this disposition was made. 
However, no administrative appeals may be made when a period of one year 
has elapsed from the date one day after the date of this disposition, even 
if it is within 60 days from the date one day after the day on which your 
company became aware of the fact that this disposition was made.

                              Required Items

·Results of seismic safety assessments, using the seismic ground 
 motion of a possible future earthquake, implemented on the reactor 
 buildings that are indirectly supporting structures of the primary 
 containment vessels, the reactor pressure vessels and the spent fuel 
 storage pools, which are the system, structure and components important 
 to seismic safety at Fukushima Dai-ichi Nuclear Power Station.

·Results of an examination of measures such as engineering works 
 for seismic reinforcement on sections that seismic safety may not be able 
 to be secured for under the current state of the reactor building.