Mainz Biomed N.V. filed SEC Form 8-K: Changes in Registrant's Certifying Accountant, Financial Statements and Exhibits
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Item 4.01 Changes in Registrant’s Certifying Accountant.
(a) Dismissal of Independent Registered Public Accounting Firm
On June 22, 2026, the Audit Committee of the Board of Directors (the “Committee”) of Quantum Cyber N.V. (the “Company”) approved the dismissal of Reliant CPA PC (“Reliant”) as the Company’s independent registered public accounting firm, effective as of the same date.
The reports of Reliant on the Company’s consolidated financial statements for the fiscal years ended December 31, 2025 and December 31, 2024, did not contain an adverse opinion or a disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope or accounting principles, except as follows: Reliant’s report on the consolidated financial statements of the Company as of December 31, 2025 and 2024 and for each of the years then ended, contained a separate paragraph stating, “The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the consolidated financial statements, the Company’s significant operating losses raise substantial doubt about its ability to continue as a going concern. Management’s plans in regard to these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.”
From January 17, 2023, the date of Reliant’s appointment, through June 22, 2026, the date of Reliant’s dismissal, there were (a) no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) between the Company and Reliant on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of Reliant, would have caused Reliant to make reference to such disagreement in its reports, if such reports had been issued, and (b) no “reportable events” (as defined in Item 304(a)(1)(v) of Regulation S-K and the related instructions).
The Company provided Reliant with a copy of this Current Report on Form 8-K prior to its filing with the U.S. Securities and Exchange Commission (the “SEC”) and requested that Reliant furnish the Company with a letter addressed to the SEC, pursuant to Item 304(a)(3) of Regulation S-K, stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of the letter, dated June 26, 2026, is filed as Exhibit 16.1 (which is incorporated by reference herein) to this Current Report on Form 8-K.
(b) Appointment of New Independent Registered Public Accounting Firm
On June 22, 2026, the Committee engaged Haskell & White LLP (“Haskell & White”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026, effective immediately. During the fiscal years ended December 31, 2025, and December 31, 2024, and the subsequent interim period through June 22, 2026, neither the Company nor anyone on its behalf has consulted with Haskell & White regarding (i) the application of accounting principles to any specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements, and neither a written report nor oral advice was provided to the Company that Haskell & White concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing, or financial reporting issue, or (ii) any matter that was either the subject of a “disagreement,” as defined in Item 304(a)(1)(iv) of Regulation S-K, or a “reportable event,” as defined in Item 304(a)(1)(v) of Regulation S-K.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
| Exhibit No. | Description | |
| 16.1 | Letter from Reliant CPA PC to the Securities and Exchange Commission dated June 26, 2026. | |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
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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.
| Quantum Cyber N.V. | ||
| By: | /s/ William Caragol | |
| Name: | William Caragol | |
| Title: | Chief Financial Officer | |
| Dated: June 26, 2026 | ||
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