Decision and Details
Receipt of the Investigation Report on an Inappropriate Matter Related to the Formulation of Design-Basis Ground Motion in the Review of Compliance with the New Regulatory Standards for the Hamaoka Nuclear Power Station
To ensure transparency and fairness, investigate the facts and causes, and consider measures to prevent recurrence, among other actions. Portions of the report have been withheld to mitigate the impact on the parties involved in the matter under investigation and protect individual privacy, among other reasons.
The impact of the matter on current-period and future consolidated results is undetermined at this time.
| Item | Details |
|---|---|
| Matter Covered | Receipt of the Investigation Report on an Inappropriate Matter Related to the Formulation of Design-Basis Ground Motion in the Review of Compliance with the New Regulatory Standards for the Hamaoka Nuclear Power Station |
| Decision Date | 11 September 2026 (date received) |
| Implementation Date | 11 September 2026 (investigation report received, completed) |
| Quantity / scale | Units 3 and 4 of Hamaoka Nuclear Power Station; investigation committee composed solely of external experts |
| Impact on Business Performance | The impact of the matter on current-period and future consolidated results is undetermined at this time. |
| Reason | To ensure transparency and fairness, investigate the facts and causes, and consider measures to prevent recurrence, among other actions. Portions of the report have been withheld to mitigate the impact on the parties involved in the matter under investigation and protect individual privacy, among other reasons. |
| Governing Rule | Review for compliance with new regulatory standards under the Act on the Regulation of Nuclear Source Material, Nuclear Fuel Material and Reactors |
| Related previous disclosures | Establishment of the investigation committee, announced on 5 January 2026 |
| Future plans | The report will be disclosed promptly at a later date after portions have been withheld. If any matters requiring disclosure arise, they will be announced promptly. |
Items this document does not state (3)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.To ensure the transparency and fairness of the investigation, investigate the facts and causes, and consider measures to prevent recurrence. Portions of the report have been withheld to mitigate the impact on the parties involved and protect individual privacy.