Clearfield, Inc.

Management’s Report on Internal Control over Financial Reporting

Management is responsible for establishing and maintaining an adequate system of internal control over financial reporting of the Company. This system is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with United States generally accepted accounting principles.

Our internal control over financial reporting includes those policies and procedures that: (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management conducted an evaluation of the effectiveness of the system of internal control over financial reporting as of September 30, 2025. In making this evaluation, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—2013 Integrated Framework. Based on management’s evaluation and those criteria, management concluded that the Company’s system of internal control over financial reporting was effective as of September 30, 2025.

Management’s internal control over financial reporting as of September 30, 2025, has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report appearing on the following page, in which they expressed an unqualified opinion thereon.

Further discussion of our internal controls and procedures is included in Item 9A of this report, under the caption “Controls and Procedures.”

Clearfield, Inc.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

**Report of Independent Registered Public Accounting Firm