Komori
Occurring Fact6594NIDEC CORPORATIONElectrical Equipment & Precision Instruments

Notice regarding progress on efforts to resolve the disclaimer of opinion

The target of filing corrected reports and other documents for the fiscal year ended March 2026 by 28 October 2026 was not achieved, and the corrected reports and other documents accompanied by audit opinions remained unfiled. Evaluation and personnel measures for those involved in accounting irregularities, as well as some audit procedures, remain incomplete, and the scope of additional confirmations has also expanded.

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Efforts to resolve the disclaimer of opinion

Subject Entity

NIDEC CORPORATION and the NIDEC Group

Target Locations / Products

Domestic and overseas locations related to potential signatories of the management representation letter, 23 locations, approximately 50 locations, affiliated companies and their respective financial reporting processes

OccurrenceAdditional matters requiring confirmation were identified after 30 September 2026, and some additional procedures remained ongoing as of 28 October 2026
8 days later
Awareness or receipt of noticeRequests for additional procedures were received from the accounting auditor on 8 October 2026, 19 October 2026 and other dates
Litigation / administrative actionThe designation date as a Security on Alert was 28 October 2025
This disclosure10/28/2026
Cause

The involvement of officers and employees who engaged in inappropriate accounting and other matters in the financial reporting processes, and the inability to obtain sufficient appropriate audit evidence

Company response

Investigation structure

An investigation into misconduct under the direction of the Audit and Supervisory Committee by the third-party committee established on 3 September 2025, and the engagement of external legal experts

Measures to prevent recurrence

Email reviews, checks for involvement in customs-related issues, checks for involvement in quality issues, résumé checks, checks of past whistleblowing and disciplinary records, reviews of the results of interviews concerning disciplinary action conducted by external legal experts, additional interviews with relevant individuals as necessary, training, obtaining written pledges, additional investigations when matters are identified, excluding signatories or preparing consideration memos, confirming appropriate responsibilities and authority relating to financial reporting, and responding to questions from the accounting auditor

Directors' and officers' liability

Personnel corrective measures, including the reassignment of accounting managers and others based on an analysis of those involved. Based on the findings of the committee investigating officer responsibility, the Company decided to file lawsuits seeking damages against former officers and others

Related procedures

Type

Audit procedures, submission of the internal management system confirmation letter, and the review by the Tokyo Stock Exchange for the lifting of the designation as a Security on Alert

Court or authority

Tokyo Stock Exchange, Inc. and the accounting auditor

Accounting period in which recognized

Each accounting period for the fiscal year ended March 2026 and the fiscal year ended March 2025 and earlier

Outlook

The Company will proceed with the additional procedures and take measures as necessary. The Company's additional procedures are scheduled for completion and reporting to the accounting auditor in November 2026, subject to conditions including that no further procedures are required. The Company plans to submit the internal management system confirmation letter to the Tokyo Stock Exchange on 30 October 2026, after which it will undergo a review for the lifting of the designation as a Security on Alert

Planned follow-up disclosure

The internal management system confirmation letter is scheduled to be submitted on 30 October 2026. The additional procedures are scheduled for completion and reporting in November 2026, but the audit completion date and the timing of the corrected report filing have not been determined

Event that occurred
ItemDetails
Event nameEfforts to resolve the disclaimer of opinion
Date of occurrenceAdditional matters requiring confirmation were identified after 30 September 2026, and some additional procedures remained ongoing as of 28 October 2026
Date recognized / date notice receivedRequests for additional procedures were received from the accounting auditor on 8 October 2026, 19 October 2026 and other dates
Subject EntityNIDEC CORPORATION and the NIDEC Group
Target Locations / ProductsDomestic and overseas locations related to potential signatories of the management representation letter, 23 locations, approximately 50 locations, affiliated companies and their respective financial reporting processes
CauseThe involvement of officers and employees who engaged in inappropriate accounting and other matters in the financial reporting processes, and the inability to obtain sufficient appropriate audit evidence
Accounting period in which recognizedEach accounting period for the fiscal year ended March 2026 and the fiscal year ended March 2025 and earlier
Type of litigation or proceedingAudit procedures, submission of the internal management system confirmation letter, and the review by the Tokyo Stock Exchange for the lifting of the designation as a Security on Alert
Court or authorityTokyo Stock Exchange, Inc. and the accounting auditor
Date of filing / date of actionThe designation date as a Security on Alert was 28 October 2025
Investigation structureAn investigation into misconduct under the direction of the Audit and Supervisory Committee by the third-party committee established on 3 September 2025, and the engagement of external legal experts
Measures to prevent recurrenceEmail reviews, checks for involvement in customs-related issues, checks for involvement in quality issues, résumé checks, checks of past whistleblowing and disciplinary records, reviews of the results of interviews concerning disciplinary action conducted by external legal experts, additional interviews with relevant individuals as necessary, training, obtaining written pledges, additional investigations when matters are identified, excluding signatories or preparing consideration memos, confirming appropriate responsibilities and authority relating to financial reporting, and responding to questions from the accounting auditor
Directors' and officers' liabilityPersonnel corrective measures, including the reassignment of accounting managers and others based on an analysis of those involved. Based on the findings of the committee investigating officer responsibility, the Company decided to file lawsuits seeking damages against former officers and others
OutlookThe Company will proceed with the additional procedures and take measures as necessary. The Company's additional procedures are scheduled for completion and reporting to the accounting auditor in November 2026, subject to conditions including that no further procedures are required. The Company plans to submit the internal management system confirmation letter to the Tokyo Stock Exchange on 30 October 2026, after which it will undergo a review for the lifting of the designation as a Security on Alert
Planned follow-up disclosureThe internal management system confirmation letter is scheduled to be submitted on 30 October 2026. The additional procedures are scheduled for completion and reporting in November 2026, but the audit completion date and the timing of the corrected report filing have not been determined
Items this document does not state (10)
Amount of Impact on Business PerformanceImpact on Earnings ForecastPlaintiffDefendantClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateVoting rights ownership percentage before the changeVoting rights ownership percentage after the change

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.

The identification and evaluation of officers and employees involved in inappropriate accounting and other matters, personnel corrective measures, and the eligibility verification and additional audit procedures requested by the accounting auditor have not been completed. The Company also cited the detection of additional matters requiring confirmation after 30 September and the resulting expansion of the subjects and scope of the procedures.

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Notice regarding progress on efforts to resolve the disclaimer of opinion | NIDEC CORPORATION (6594) timely disclosure | Komori