INTERFACE INC

Report of Independent Registered Public Accounting Firm

Shareholders and Board of Directors

Interface, Inc.

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Interface, Inc. (the “Company”) as of December 31, 2023, and January 1, 2023, the related consolidated statements of operations, comprehensive income, and cash flows for each of the three fiscal years in the period ended December 31, 2023, and the related notes and financial statements schedule listed in the accompanying index (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2023, and January 1, 2023, and the results of its operations and its cash flows for each of the three fiscal years in the period ended December 31, 2023, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) and our report dated February 28, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill and Other Intangible Assets Impairment Assessment

As described in Notes 1 and 12 of the consolidated financial statements, the Company’s consolidated goodwill balance was $105.4 million as of December 31, 2023, all allocated to the Americas reporting unit. Goodwill is tested for impairment annually and between annual tests if events or changes in circumstances indicate the asset might be impaired. If the carrying value of the Americas reporting unit exceeds its estimated fair value, the Company will recognize an impairment loss equal to the amount of the excess, limited to the amount of goodwill allocated to that reporting unit. The Company estimates the fair value of the Americas reporting unit using a combination of fair values derived from an income methodology and a market comparable methodology. The Company’s consolidated trademark and tradename intangible assets were $47.7 million as of December 31, 2023. Trademark and tradename intangible assets acquired in connection with the nora acquisition are not subject to amortization, but are tested for impairment annually and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of the intangible assets below their carrying amount. The Company prepared valuations of the intangible assets using the present value of cash flows under the relief from royalty method, which were compared to the carrying value of intangible assets to determine whether any impairment existed.

We identified the income approach valuation methodology used in the impairment evaluation of goodwill for the Americas reporting unit and the nora tradename intangibles as a critical audit matter due to the inherent subjectivity involved in management’s determination of (i) forecasts of revenues and (ii) the discount rate. The audit procedures to evaluate the reasonableness of these assumptions involved a high degree of auditor judgment and an increased extent of effort, including the involvement of individuals with specialized skill or knowledge.

The primary procedures we performed to address this critical audit matter included:

•Evaluating management’s ability to accurately forecast future revenues by performing a retrospective review comparing management’s prior period forecasts to actual results for the same period.

•Inquiring of management to understand the process for developing the forecasts of future revenues and evaluating the consistency of the revenue forecasts used with evidence obtained in other areas of the audit.

•Testing management’s process used to evaluate goodwill and the nora tradename intangibles for impairment, including evaluating the reasonableness of the forecasts of future revenues by comparing forecasts of future revenues to (1) historical results and the recent trend of revenue growth rates, (2) forecasted information included in industry reports for the Company and its peer companies, (3) publicly available industry analyst projections, and (4) external communications made by the Company.

•Utilizing our valuation specialists to assist in evaluating the reasonableness of the Company’s discount rate by (i) testing the source information underlying the determination of the discount rate, (ii) testing the mathematical accuracy of the calculations; and (iii) developing a range of independent estimates and comparing those to the discount rate selected by management.

/s/ BDO USA, P.C.

We are uncertain as to the year we began serving consecutively as the auditor of the Company's financial statements; however, we are aware that we have been the Company's auditor consecutively since at least 1981.

February 28, 2024

Report of Independent Registered Public Accounting Firm

Shareholders and Board of Directors

Interface, Inc.

Opinion on Internal Control over Financial Reporting

We have audited Interface, Inc.’s (the “Company’s”) internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the “COSO criteria”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheets of the Company as of December 31, 2023, and January 1, 2023, the related consolidated statements of operations, comprehensive income, and cash flows for each of the three fiscal years in the period ended December 31, 2023, and the related notes and financial statements schedule and our report dated February 28, 2024 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Item 9A, Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit of internal control over financial reporting in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s 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.

/s/ BDO USA, P.C.

February 28, 2024