--- title: "Nidec and PwC: warnings, responses and the audit disclaimer" language: en canonical: https://dossiertwist.com/dossiers/nidec/audit-and-controls/ as_of: 2026-10-06 keywords: ["Nidec","accounting","corporate governance","audit","quality","subsidiaries"] --- # Nidec and PwC: warnings, responses and the audit disclaimer **Question.** Why did the audit remain unresolved after the investigations? **Answer.** The record contains serious control findings, the auditor’s explanations of earlier episodes, and a later inability to obtain sufficient evidence for an opinion. ## The scope of the disclaimer - Analysis: The September announcement reports annual-account and internal-control disclaimers and no quarterly-review conclusion. PwC pointed to people involved in the accounting problems or false explanations still occupying financial-reporting roles, incomplete remediation and uncertainty about the completeness of corrections. It also questioned evidence supporting impairment estimates and prior-period comparisons. [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. - Analysis: A disclaimer neither validates the accounts nor proves every number false. It means the auditor could not obtain the basis required for an opinion. Nidec said it would take appropriate action and apologised, but that statement is not proof the underlying evidence and control problems had already been resolved. [s-d4] ## Earlier warning systems and the auditor’s answers - Analysis: The committee found that internal investigators avoided confronting headquarters pressure and described edited interview minutes and selectively narrowed forensic material. Its account identifies both auditor comments and the internal department’s subsequent changes. PwC replied that it sought to resolve inconsistencies between interview accounts and daily calls under time constraints, and had requested digital forensics. [s-d11] [s-d91] - Attributed: The committee found that internal investigations repeatedly avoided examining headquarters pressure. It describes interview records at Nidec Servo being edited after auditor comments and final minutes omitting statements about coercive pressure; it also found internal emails showing that the material supplied for a 2020 forensic review had been selectively narrowed. [s-d11] [s-d91] - Qualification: The committee expressly did not evaluate the auditor: it did not examine audit workpapers or interview engagement partners. Anonymised officials are not identified from their job titles. - Response: PwC’s written answer said the edits sought to resolve discrepancies between interview minutes and daily calls under time constraints, and that the partner had called for digital forensics. PwC’s separate March statement said it cooperated sincerely, answered all questions and would not comment on individual engagements. - Analysis: The committee did not examine audit workpapers or interview engagement partners and expressly did not evaluate the auditor. PwC’s separate public response said it had answered all committee questions and would not discuss individual engagements. Those evidentiary limits and responses remain alongside the criticism; the historical PwC Kyoto and later PwC Japan firms also need their own periods. [s-d11] [s-d18] [s-d91] - 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. - Documented: The committee describes Kyoto Audit Corporation, renamed PwC Kyoto in 2016, as Nidec’s longstanding auditor; PwC Kyoto merged with PwC Aarata in December 2023 to form PwC Japan. The committee’s account of older events therefore distinguishes the firms and periods. [s-d11] - Qualification: A common network name does not make every historical firm the same legal entity or assign each past engagement to today’s firm. - Analysis: The Brazilian investigation produced a separate fee dispute: the committee describes an audit-fee reduction equal to half the external forensic costs following Nagamori’s instruction. PwC described this as part of negotiating total group audit remuneration. The relevant audit report preceded the negotiation, so the episode should not be turned into an unsupported claim that an opinion was purchased. [s-d11] [s-d91] - Attributed: For the Brazilian appliance-business investigation, the committee describes a ¥25.7 million reduction in PwC Kyoto’s audit remuneration, equal to half the external forensic costs, negotiated after Nagamori’s instruction. The reduction was split between two financial years. [s-d11] [s-d91] - Qualification: The relevant Companies Act audit report preceded the fee negotiation. This episode should not be recast as a proven payment for an audit opinion, which the committee did not find. - Response: PwC’s written explanation treated the adjustment as part of negotiation of the group’s total audit remuneration. Its public response said it had answered all committee questions and declined engagement-specific comment. ## The exchange’s distinct action - Analysis: Tokyo Stock Exchange placed Nidec on special alert from October 2025, then required a ¥91.2 million listing-agreement penalty in April 2026. It cited prolonged weaknesses in management and monitoring, including the failure of internal functions to challenge pressure. This is an exchange measure with its own basis, separate from an unissued government penalty, criminal case or future listing review. [s-d31] [s-d55] - 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. ## Sources - [s-d4] Company statement source · s-d4 - [s-d10] Company statement source · s-d10 - [s-d11] Research source · s-d11 - [s-d91] Company statement source · s-d91 - [s-d18] Research source · s-d18 - [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