--- title: "Nidec: accounting corrections, audit uncertainty and the group behind them" language: en canonical: https://dossiertwist.com/dossiers/nidec/ as_of: 2026-10-06 keywords: ["Nidec","accounting","corporate governance","audit","quality","subsidiaries"] --- # Nidec: accounting corrections, audit uncertainty and the group behind them **Question.** What is established, and where does the evidence stop? **Answer.** Nidec’s investigations describe systematic accounting failures, but different figures, individuals and proceedings require different conclusions. ## What this research adds - Analysis: The dossier separates the parent from its subsidiaries, dated ownership from operating responsibility, and investigative findings from legal outcomes. [s-d10] [s-d11] [s-d18] [s-d4] [s-d14] [s-d31] [s-d55] ## A group crisis with distinct kinds of evidence - Analysis: Nidec grew from a Kyoto motor company into an international group with hundreds of subsidiaries. That scale explains the need to separate legal entities and operating divisions: a company appearing in the network is not automatically a site of misconduct, and an officer’s title does not establish participation in a particular adjustment. [s-d10] [s-d11] - Documented: Nidec is a Japanese motor and industrial-equipment group founded in Kyoto in July 1973. Its September 2026 annual filing reports 341 consolidated subsidiaries and four equity-accounted affiliates, with a corporate history built through numerous acquisitions. [s-d10] [s-d11] - Qualification: The group count is a dated reporting perimeter, not a count of companies implicated in misconduct. The 2023 Japanese corporate-name change does not create a new issuer. - Analysis: The accounting committee’s February report and April supplement describe a system of unrealistic targets, delayed write-offs and weak restraints on management. Its investigation used interviews, forensic work and company self-inspections, but depended on voluntary cooperation and did not exercise a court’s compulsory powers. Its findings are substantial evidence, with stated limitations. [s-d11] [s-d18] - Attributed: The accounting committee was established on 3 September 2025, delivered its first report on 27 February 2026 and its final supplement on 17 April. Its final work included 612 interviews with 337 people and forensic investigations covering 129 people; the supplement left its earlier cause analysis and recommendations unchanged. [s-d11] [s-d18] - Qualification: This was a company-appointed investigation relying on voluntary cooperation, not a compulsory court proceeding. Some former personnel could not be interviewed, personal data holdings were not comprehensively inspected, auditor workpapers were not examined and engagement partners were not interviewed. Written auditor answers were obtained; the report did not evaluate the auditor or guarantee any court decision. - Attributed: The committee attributed the accounting misconduct it identified to excessive pressure to meet operating-profit targets. It described targets set from investor expectations rather than operating capacity, pressure transmitted through headquarters, and accounting departments that sometimes participated in the adjustments instead of restraining them. [s-d11] - Qualification: The report distinguishes impermissible treatment from legitimate accounting judgment. Its aggregate correction figures include errors as well as intentional misconduct. ## Corrections did not resolve the audit problem - Analysis: The April cumulative correction of ¥160.7 billion and the later, wider September figure of ¥482.457 billion refer to different scopes and reference periods. A third number, ¥449.8 billion, is a gross reference measure rather than an additional net loss. Reading these figures as a single accumulating total would exaggerate what the records say. [s-d11] [s-d18] [s-d10] - Documented: The April committee supplement estimated a cumulative negative impact of ¥160.7 billion on group net assets at the end of the first quarter of FY2025, replacing the February provisional ¥139.7 billion figure. It also presented ¥449.8 billion of gross net-profit effects as a separate reference measure. [s-d11] [s-d18] - Qualification: The cumulative figure combines misconduct and errors, and excludes specified derivative tax, goodwill and impairment effects. The gross measure follows separate assumptions, does not net reversals in the same way and is not an official accounting metric; it must not be added to the cumulative figure as another loss. - Documented: Nidec’s September annual filing reports a wider cumulative reduction of ¥482.457 billion in net assets as of the second quarter of FY2025. Its restated March 2025 comparative figures reduce operating profit from ¥237.837 billion to ¥128.222 billion, owner-attributable profit from ¥164.159 billion to ¥84.672 billion, and owner-attributable equity from ¥1,716.947 billion to ¥1,239.815 billion. [s-d10] - Qualification: The September calculation includes further work and a later reference period than the April committee figure. The same filing records a ¥356.433 billion reduction of opening retained earnings for earlier periods. These measures overlap and must not be summed. The comparison uses the before-and-after figures in this filing, not unreconciled numbers from an older report. - Analysis: Even after the corrections, PwC declined to express the required annual audit opinions. It cited incomplete personnel remediation, questions about the reliability of evidence and unresolved impairment estimates. That leaves meaningful uncertainty: the corrected figures are company-reported results accompanied by a disclaimer, rather than results certified without qualification. [s-d4] [s-d10] - Documented: The 30 September 2026 announcement reports disclaimers on annual consolidated and parent-only accounts and the internal-control report, together with no review conclusion on the third-quarter results. PwC said evidence about completeness of corrections, management override, impairment and comparative information was insufficient and potentially pervasive. [s-d4] - Qualification: A disclaimer means the auditor could not obtain the basis to express an opinion. It is neither approval of the accounts nor an affirmative finding that every reported figure is wrong. The English release’s second subsection heading is inconsistent with its quarterly-review body; the opening announcement distinguishes the scopes. - Response: Nidec said it took the events seriously, would take appropriate action and apologised to shareholders and other stakeholders. - Outcome: The auditor said some people involved in the identified accounting problems or false explanations still held financial-reporting responsibilities and personnel remediation was incomplete. The company could not express its own internal-control assessment result as of March 2026. - Documented: The company’s operating-results discussion reports ¥632.135 billion of non-financial-asset impairment, while the accompanying auditor text refers to ¥632.221 billion. The auditor said it lacked sufficient evidence about the amount and timing of impairment for certain cash-generating units and whether prior-period estimates used information available at the relevant time. [s-d10] [s-d4] - Qualification: The retained texts differ slightly in the stated total; this dossier does not invent a reconciliation. Both place impairment at roughly ¥632.2 billion. The audit objection includes the risk of hindsight in restating prior estimates, not just a disagreement over one amount. ## Responsibility and timing matter - Analysis: The committee’s conclusions about Nagamori, Kobe and three successive presidents were different. The later resignation of Kishida arose from a further board review under a stated higher ethical standard; the public announcement did not disclose the incidents or turn the earlier committee findings into a judicial verdict. Kaida’s executive appointment was immediate, while his representative-director appointment still required approvals. [s-d11] [s-d14] [s-d10] - Attributed: The committee found no facts showing that Nagamori directly instructed the identified improper accounting, but concluded that he knew of and accepted delayed correction and should bear the greatest responsibility for the system of excessive pressure. For Kobe it found no evidence of specific knowledge of particular misconduct, while inferring general awareness and toleration of planned rather than immediate correction. [s-d11] - Qualification: These are the committee’s differentiated assessments of responsibility. They are not criminal verdicts, and the absence of evidence of direct instructions is not a conclusion that governance responsibility disappeared. - Attributed: The same committee found no facts indicating that Kishida, Yoshimoto or Seki instructed, directed or condoned the accounting misconduct it uncovered. Outside officers interviewed said that the reports they received had not explained the fundamental performance-pressure problem or the accumulated “legacy liabilities”. [s-d11] - Qualification: The finding is bounded by the committee’s investigation and evidence. It is not a lifetime clearance of every action by these individuals or every outside director. - Attributed: On 29 September 2026 Nidec announced that Kishida resigned as representative director, president and CEO after a further company review found some statements or conduct concerning financial reporting that could not necessarily be regarded as appropriate. The company said the board applied the higher ethical standard expected under its new governance structure. [s-d14] - Qualification: The release does not specify the underlying incidents or announce a court finding. This later board judgment must not be substituted retrospectively for the accounting committee’s distinct finding about instructions, direction and toleration. - Response: Nidec also credited Kishida with sincere work on restoring the business since the committee was established, and said he offered to resign after the board’s discussions. - Documented: The same release appointed Michio Kaida president and CEO while retaining his CTO role, and appointed Masayuki Minai representative director effective 29 September 2026. Kaida’s appointment as a representative director was a nomination subject to a future extraordinary shareholder meeting and subsequent board meeting. [s-d10] [s-d14] - Qualification: The annual filing identifies Kazuo Nakagawa as acting CFO. The filing date is not evidence of his appointment date. Kaida’s announced executive appointment and his pending board appointment are different events. - Analysis: The exchange imposed a listing-agreement penalty and had placed Nidec on special alert. Neither action, by itself, establishes criminal liability or completed delisting. The following pages keep investigative findings, financial consequences, corporate capacities and procedural outcomes separate. [s-d31] [s-d55] [s-d10] - Documented: Tokyo Stock Exchange designated Nidec a security on special alert effective 28 October 2025. On 30 April 2026 it required a ¥91.2 million listing-agreement penalty, citing prolonged and extremely serious weaknesses in internal management and loss of investor trust. [s-d31] [s-d55] - Qualification: The exchange action is distinct from a government criminal charge or administrative securities penalty. The retained decisions do not establish completed delisting. - Documented: Nidec said its accounting corrections showed that specified buybacks or dividends in each fiscal year ended March 2022 through March 2026 exceeded the distributable amount calculated under Japanese company law. It also said regulatory investigation or an administrative monetary penalty was possible but could not then be reasonably estimated. [s-d10] - Qualification: This is the company’s disclosure of the consequences of its corrected accounts. A possible regulatory penalty is not an imposed penalty, and individual civil liability requires its own proceeding and outcome. ## Sources - [s-d10] Company statement source · s-d10 - [s-d11] Research source · s-d11 - [s-d18] Research source · s-d18 - [s-d4] Company statement source · s-d4 - [s-d14] Company statement source · s-d14 - [s-d31] Regulatory record concerning Nidec or a named participant, Japan Exchange Group / Tokyo Stock Exchange - [s-d55] Regulatory record concerning Nidec or a named participant, Japan Exchange Group / Tokyo Stock Exchange