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Investor Presentaiton

8 (Severe Accident Measures) NEW Reinforced Reinforced NRA, Japan Nuclear Regulation Authority New Regulatory Requirements: Requirements for B-DBA ■ DEC: Design extension Structure conditions defined in IAEA SSR-2/1 4th Layer of DiD <Pre-existed> Natural phenomena 3rd Layer of DiD Fire Reliability Reliability of power supply Ultimate heat sink Function of other SCCs Seismic/Tsunami resistance <New> Suppression of radioactive materials dispersal Specialized Safety Facility Prevention of CV failure Prevention of core damage Natural phenomena Fire Reliability Reliability of power supply Ultimate heat sink Function of other SCCs Seismic/Tsunami resistance

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