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Occurring Fact8105Bitcoin Japan CorporationTrading & Wholesale

Notice Regarding Changes to the Accounting Auditor

The Company resolved at a meeting of the Audit and Supervisory Committee to adopt a policy under which Futaba Audit Corporation (双葉監査法人) will retire upon expiration of its term and Eiwa Audit Corporation (永和監査法人) will be nominated as the new accounting auditor. Formal approval at the Ordinary General Meeting of Shareholders scheduled for 29 June 2026 is required for the appointment to be finalized.

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Change in Accounting Auditor

Subject Entity

Bitcoin Japan 株式会社 (filing company)

OccurrenceDate of the 122nd Ordinary General Meeting of Shareholders scheduled for 29 June 2026 (Monday)
Awareness or receipt of notice23 April 2026 (resolved at the Audit and Supervisory Committee meeting held today)
This disclosure04/23/2026
Cause

Following a comprehensive review of the extended period of continuous auditing by the current accounting auditor, efforts to pursue new businesses after the change in the major shareholder in August 2025, and future business expansion, taking into account audit experience, expertise, independence, audit quality and audit structure, among other factors

Outlook

The change will be formally decided following approval at the 122nd Ordinary General Meeting of Shareholders scheduled for 29 June 2026.

Event that occurred
ItemDetails
Event nameChange in Accounting Auditor
Date of occurrenceDate of the 122nd Ordinary General Meeting of Shareholders scheduled for 29 June 2026 (Monday)
Date recognized / date notice received23 April 2026 (resolved at the Audit and Supervisory Committee meeting held today)
Subject EntityBitcoin Japan 株式会社 (filing company)
CauseFollowing a comprehensive review of the extended period of continuous auditing by the current accounting auditor, efforts to pursue new businesses after the change in the major shareholder in August 2025, and future business expansion, taking into account audit experience, expertise, independence, audit quality and audit structure, among other factors
OutlookThe change will be formally decided following approval at the 122nd Ordinary General Meeting of Shareholders scheduled for 29 June 2026.
Planned follow-up disclosureThe change will be formally decided following approval at the 122nd Ordinary General Meeting of Shareholders scheduled for 29 June 2026.
Items this document does not state (18)
Target Locations / ProductsAmount of Impact on Business PerformanceAccounting period in which recognizedImpact on Earnings ForecastType of litigation or proceedingCourt or authorityPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateInvestigation structureMeasures to prevent recurrenceDirectors' and officers' liabilityVoting 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 Company had been considering a change because the current accounting auditor has served as auditor for an extended period. In light of its efforts to pursue new businesses and expand its operations following the change in its major shareholder, the Company determined that the audit structure of Eiwa Audit Corporation, which has audit experience and specialized expertise in new perspectives and relevant fields, was appropriate.

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Notice Regarding Changes to the Accounting Auditor | Bitcoin Japan Corporation (8105) timely disclosure | Komori