International Battery Metals (OTCQB: IBATF) appoints Grant Thornton as auditor

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

International Battery Metals Ltd. changed its independent auditor. The company’s audit committee dismissed CBIZ CPAs P.C. and appointed Grant Thornton LLP as independent registered public accounting firm to audit the financial statements for the fiscal year ending March 31, 2027, effective immediately.

CBIZ CPAs’ reports on the March 31, 2026 and 2025 financial statements contained no adverse opinions, disclaimers, or qualifications. Management had previously identified a material weakness in internal control over financial reporting for the year ended March 31, 2025, related to controls over capitalization of capital assets and useful lives, which the company states was remediated during the fiscal year ended March 31, 2026.

The company reports no disagreements with CBIZ CPAs on accounting principles, disclosure, or audit scope during the fiscal years ended March 31, 2026 and 2025 and through June 24, 2026, and notes one reportable event tied to the earlier material weakness. CBIZ CPAs has provided a letter to the SEC, filed as an exhibit, regarding these disclosures.

8-K Event Classification

2 items: 4.01, 9.01

2 items

Item 4.01 Changes in Registrant's Certifying Accountant Governance

The company changed its independent auditing firm, which may involve disagreements on accounting matters.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

New audit year: Fiscal year ending March 31, 2027 Prior audit years: Fiscal years ended March 31, 2026 and 2025 Reportable event year: Fiscal year ended March 31, 2025 +3 more

6 metrics

New audit year Fiscal year ending March 31, 2027 Grant Thornton engaged to audit this period

Prior audit years Fiscal years ended March 31, 2026 and 2025 Covered by CBIZ CPAs’ audit reports

Reportable event year Fiscal year ended March 31, 2025 Material weakness in internal control identified

Remediation period Fiscal year ended March 31, 2026 Company reports remediation of material weakness

Auditor dismissal date June 24, 2026 CBIZ CPAs dismissed and notified on this date

Exhibit letter date June 30, 2026 CBIZ CPAs’ letter to SEC filed as Exhibit 16.1

Key Terms

independent registered public accounting firm, Audit Committee, material weakness, internal control over financial reporting, +2 more

6 terms

independent registered public accounting firm financial

"CBIZ CPAs as the Company’s independent registered public accounting firm"

An independent registered public accounting firm is an outside accounting company officially registered with the government regulator to examine and report on a public company's financial records and controls. Investors treat its reports like an impartial inspector’s certificate — they add credibility to financial statements, help spot errors or misleading claims, and reduce the risk that shareholders are relying on unchecked or biased numbers.

Audit Committee financial

"the Audit Committee of the Board of Directors of International Battery Metals Ltd."

A company's audit committee is a small group of board members who act like independent inspectors for the firm's finances, overseeing how financial reports are prepared, monitoring internal controls, and managing the relationship with external auditors. Investors care because a strong audit committee reduces the risk of accounting errors, fraud, or misleading statements, making financial statements more trustworthy and helping protect shareholder value.

material weakness financial

"management identified a material weakness in the Company's internal control over financial reporting"

A material weakness is a significant flaw in the systems and checks a company uses to ensure its financial reports are accurate, meaning errors or fraud could happen and not be caught. For investors it matters because it raises the risk that reported results are unreliable—similar to finding a hole in a ship’s hull—potentially leading to corrected financials, regulatory action, reduced trust, and negative effects on stock value and borrowing costs.

internal control over financial reporting financial

"material weakness in the Company's internal control over financial reporting"

Internal control over financial reporting is a company’s system of procedures and checks designed to make sure its financial statements are accurate and complete, like a set of guardrails and verification steps that catch mistakes or fraud before numbers are published. Investors care because strong controls make reported results more trustworthy, lower the risk of surprise restatements or regulatory problems, and give greater confidence when valuing the company or comparing it to peers.

reportable event regulatory

"there was one reportable event (as defined by Item 304(a)(1)(v) of Regulation S-K)"

Item 304(a)(1)(v) of Regulation S-K regulatory

"one reportable event (as defined by Item 304(a)(1)(v) of Regulation S-K)"

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Understanding 8-K Material Events →

Available on EDGAR 06/30/2026 - 04:24 PM Accepted by SEC EDGAR 06/30/2026 - 04:23 PM

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 24, 2026



INTERNATIONAL BATTERY METALS LTD.
(Exact Name of Registrant as Specified in Charter)

British Columbia, Canada	333-286616	Not applicable
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

12 Greenway Plaza, Suite 1100 Houston, Texas 77046 (Address of Principal Executive Offices)

Registrant’s telephone number, including area code: (832) 683-8839
N/A
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: None

     Securities registered pursuant to Section 12(g) of the Act:

    

     Title of each class

     Trading Symbol(s)

     Name of each exchange on which registered

     Common Shares, no par value

     IBAT

     TSX Venture Exchange

     Common Shares, no par value

     IBATF

     OTCQB

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the ExchangexActx☐

Item 4.01 Changes in Registrant's Certifying Accountant.

On June 24, 2026, the Audit Committee (the “Audit Committee”) of the Board of Directors of International Battery Metals Ltd. (the “Company”) dismissed CBIZ CPAs P.C. (“CBIZ CPAs”) as the Company’s independent registered public accounting firm, effective immediately, and approved the engagement of Grant Thornton LLP (“Grant Thornton”) as the Company’s independent registered public accounting firm to audit the Company’s financial statements for the fiscal year ending March 31, 2027, effective immediately. CBIZ CPAs was notified of the dismissal on June 24, 2026.

CBIZ CPAs’ reports on the Company’s consolidated and combined financial statements as of March 31, 2026 and 2025 and for each of the fiscal years in the two-year period ended March 31, 2026 did not contain an adverse opinion or a disclaimer of opinion, nor were qualified or modified as to uncertainty, audit scope or accounting principles.

During the fiscal years ended March 31, 2026 and 2025, and during the subsequent interim period through June 24, 2026, (i) there were no disagreements (within the meaning of Item 304(a)(1)(iv) of Regulation S-K and the related instructions thereto) between the Company and CBIZ CPAs on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreements, if not resolved to CBIZ CPAs' satisfaction, would have caused CBIZ CPAs to make reference to the subject matter of the disagreements in connection with its report on the Company's consolidated and combined financial statements for the relevant year, and (ii) there was one reportable event (as defined by Item 304(a)(1)(v) of Regulation S-K): during the fiscal year ended March 31, 2025, management identified a material weakness in the Company's internal control over financial reporting relating related to our failure to design or maintain sufficient controls over the capitalization of capital assets or the initial determination and reassessment of their useful lives. The Company has disclosed this material weakness in its Registration Statement on Form S-1 for the fiscal year ended March 31, 2025. The Company subsequently remediated this material weakness during the fiscal year ended March 31, 2026, as described in its Annual Report on Form 10-K for that year.

During the fiscal years ended March 31, 2026 and 2025, and during the subsequent interim period through June 24, 2026, neither the Company nor anyone on its behalf consulted with Grant Thornton regarding (i) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s consolidated and combined financial statements, and neither a written report nor oral advice was provided to the Company that Grant Thornton concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing or financial reporting issue, (ii) any matter that was either the subject of a disagreement (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions thereto), or (iii) any reportable event (as described in Item 304(a)(1)(v) of Regulation S-K).

In accordance with Item 304(a)(3) of Regulation S-K, the Company provided CBIZ CPAs with a copy of the disclosure set forth above and requested that CBIZ CPAs furnish the Company with a letter addressed to the SEC stating whether CBIZ CPAs agrees with the statements made by the Company in the disclosure, and, if not, stating the respects in which it does not agree. A copy of CBIZ CPAs' letter is filed as Exhibit 16.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits


Exhibit No.		Description
16.1		Letter from CBIZ CPAs P.C. to the Securities and Exchange Commission dated June 30, 2026.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.



International Battery Metals LTD.


/s/ Michael Rutledge						June 30, 2026
Michael Rutledge						Date
Chief Financial Officer

Source: View Original Filing on SEC EDGAR

FAQ

What auditor change did International Battery Metals (IBATF) disclose?

International Battery Metals’ audit committee dismissed CBIZ CPAs P.C. and appointed Grant Thornton LLP as its independent registered public accounting firm for the fiscal year ending March 31, 2027, with both actions effective immediately and CBIZ notified on June 24, 2026.

Did International Battery Metals report disagreements with CBIZ CPAs?

The company reports no disagreements with CBIZ CPAs on accounting principles, financial statement disclosure, or audit scope for the fiscal years ended March 31, 2026 and 2025, or during the interim period through June 24, 2026, under the Regulation S-K Item 304 definition.

What material weakness did International Battery Metals previously identify?

Management identified a material weakness in internal control over financial reporting for the year ended March 31, 2025, relating to insufficient controls over capitalization of capital assets and determining and reassessing their useful lives, which was later described as remediated during the fiscal year ended March 31, 2026.

Has International Battery Metals remediated its internal control weakness?

The company states it remediated the previously disclosed material weakness in internal control over financial reporting during the fiscal year ended March 31, 2026, with details provided in its Annual Report on Form 10-K covering that period following the initial disclosure in its Form S-1.

How did International Battery Metals involve CBIZ CPAs in this disclosure?

International Battery Metals provided CBIZ CPAs a copy of the auditor change disclosure and requested a letter to the SEC stating agreement or disagreement. CBIZ CPAs’ response letter, dated June 30, 2026, is included as Exhibit 16.1 to the report for investor reference.

Filing Exhibits & Attachments

2 documents