Form 8-K

8-K — SYNTEC OPTICS HOLDINGS, INC.

Accession: 0001493152-26-040058

Filed: 2026-08-25

Period: 2026-08-19

CIK: 0001866816

SIC: 3827 (OPTICAL INSTRUMENTS & LENSES)

Item: Changes in Registrant's Certifying Accountant

Item: Financial Statements and Exhibits

Documents

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington,

D.C. 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): August 19, 2026

SYNTEC

OPTICS HOLDINGS, INC.

(Exact

name of registrant as specified in its charter)

Delaware

001-41034

87-0816957

(State

or other jurisdiction

incorporation)

(Commission

File

Number)

(IRS

Employer

Identification

No.)

515

Lee Rd.

Rochester,

NY 14606

(Address

of principal executive offices, including zip code)

Registrant’s

telephone number, including area code:

(585)

768-2513

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:

Title

of each class

Trading

Symbol(s)

Name

of each exchange on which registered

Common

stock, par value $0.0001 per share

OPTX

The

Nasdaq Capital Market

Redeemable

warrants, exercisable for shares of common stock at an exercise price of $11.50 per share

OPTXW

The

Nasdaq Capital Market

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 ☒

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 Exchange Act. ☐

Item

4.01. Changes in Registrant’s Certifying Accountant.

(a)

Dismissal of CBIZ CPAs P.C.

August 19, 2026, the Audit Committee (the “Audit Committee”) of the Board of Directors of Syntec Optics Holdings,

Inc. (the “Company”) approved the dismissal of CBIZ CPAs P.C. (“CBIZ CPAs”) as the Company’s independent

registered public accounting firm, effective as of August 19, 2026.

The audit report of CBIZ CPAs on the Company’s

consolidated financial statements as of and for the fiscal year ended December 31, 2025 did not contain an adverse opinion or

a disclaimer of opinion, and was not qualified or modified as to uncertainty, audit scope, or accounting principles.

Disagreements

During

the Company’s fiscal year ended December 31, 2025 and the subsequent interim periods, and through August 19, 2026,

there were no disagreements, as defined in 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 procedure

which, if not resolved to CBIZ CPA’s satisfaction, would have caused CBIZ CPAs to make reference to the subject matter

of the disagreement in connection with its report on the Company’s consolidated financial statements.

Reportable

Events

During

the applicable period, there were no reportable events within the meaning of Item 304(a)(1)(v) of Regulation S-K, except for

the following material weaknesses in the Company’s internal control over financial reporting:

● the

lack of documentation of formal internal control process and controls, including lack

of review of journal entries and segregation of duties;

● the

lack of

timely reconciliation controls in the areas of accounts payable, accrued legal expenses,

and provision for income taxes;

● the

lack of

controls relating to identification and disclosure of related-party transactions;

● the

lack

of controls related to evaluation of non-routine transactions including

financial instruments;

● the

lack

of necessary information technology (“IT”) general controls infrastructure

in the areas of user access and program change-management due to insufficient

documentation and training, and inadequate IT risk assessment process. Additionally,

the lack of controls around the review of SOC-1 reports and lack of cyber security

related controls.

The

Audit Committee has discussed the subject matter of the foregoing reportable events with CBIZ CPAs. The Company has authorized

CBIZ CPAs to respond fully to inquiries from WithumSmith+Brown, PC (“Withum”), the Company’s successor independent

registered public accounting firm, concerning the subject matter of the foregoing reportable events.

The

Company has provided CBIZ CPAs with a copy of the disclosures contained in this Item 4.01 and has requested that CBIZ CPAs

furnish the Company with a letter addressed to the Securities and Exchange Commission stating whether CBIZ CPAs agreed with the

statements made by the Company herein concerning CBIZ CPAs and, if not, stating the respects in which it does not agree. A copy

of CBIZ CPAs’ letter, dated August 25, 2026 is filed as Exhibit 16.1 to this Current Report on Form 8-K.

(b)

Engagement of WithumSmith+Brown, PC

August 19, 2026, the Audit Committee approved the appointment of WithumSmith+Brown, PC (“Withum”) as the Company’s

independent registered public accounting firm.

Withum’s

engagement will commence with the review of the Company’s unaudited interim consolidated financial information for the quarter

ending September 30, 2026 and will include the audit of the Company’s consolidated financial statements for the fiscal year ending

December 31, 2026.

During

the Company’s fiscal years ended December 31, 2025 and December 31, 2024 and the subsequent interim period, and through

August 19, 2026, neither the Company nor anyone acting on its behalf consulted Withum 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 financial statements, and neither a written report nor oral advice was provided

to the Company that Withum 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 and the related instructions

thereto, or a reportable event, as described in Item 304(a)(1)(v) of Regulation S-K.

Withum

has been informed of the material weaknesses and other internal-control matters described above and has been authorized to discuss such

matters fully with CBIZ CPAs.

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 August 25, 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.

SYNTEC OPTICS HOLDINGS, INC.

Date:

August 25,

2026

By:

/s/ Dean Rudy

Dean Rudy

Chief Financial Officer

EX-16.1

Filename: ex16-1.htm · Sequence: 2

Exhibit 16.1

August

25, 2026

Securities

and Exchange Commission

100

F Street, N.E.

Washington,

DC 20549

Commissioners:

have read the statements made by Syntec Optics Holdings, Inc. under Item 4.01 of its Form 8-K dated August 25, 2026. We agree with the

statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Syntec Optics

Holdings, Inc. contained therein.

Very

truly yours,

/s/

CBIZ CPAs P.C.

CBIZ

CPAs P.C.

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