FTC Solar, Inc.

Evaluation of disclosure controls and procedures

Our management, including our principal executive officer and our principal financial officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2025. As allowed, management excluded from its assessment of disclosure controls and procedures and internal control over financial reporting the operations of Alpha Steel, which we obtained control of effective November 12, 2025. The assets of the acquired business represented less than 7% of our total assets at December 31, 2025 and their results of operations from the date of acquisition to December 31, 2025 had less than a 1% impact on our consolidated net loss for the year ended December 31, 2025. Based on our evaluation, our principal executive officer and our principal financial officer have concluded that our disclosure controls and procedures were not effective as of December 31, 2025, solely because of the material weakness described below.

In designing and evaluating our disclosure controls and procedures, our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Identification of material weakness

Our process for determining revenue to be recognized over time involves multiple spreadsheets and inputs from various parties and sources. While this process is robust, it does require manual coordination and from time to time we identify isolated errors that are not material to our consolidated results. We promptly take action to correct such errors, as necessary, prior to including in our publicly reported financial results. These issues have not reflected a systemic concern with our revenue recognition methodology; rather they have arisen from a discrete fact pattern on a specific project. For example, we found that (i) certain spreadsheets had not been updated with the most current cost information available in our general ledger relating to a particular project, (ii) a specific entry was recorded to an incorrect project in one case, and (iii) intercompany margin eliminations associated with Alpha Steel were not applied timely on certain projects. These errors had no material impact on the reported financial results included in this Annual Report.

Due to the significance of our accounting for revenue, we have concluded that the control deficiencies constitute a material weakness in our controls related to the recognition of revenue. As a result, we are actively implementing enhancements to our internal accounting processes and management review controls to strengthen our ability to prevent and detect such errors on a more timely basis in the future. We are also evaluating opportunities to increase automation within the revenue process and reduce manual effort and improve overall control effectiveness.

Management's report on internal control over financial reporting

It is the responsibility of the Company's management to establish and maintain adequate internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act). Internal control over financial reporting is 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.

Our internal control over financial reporting includes those policies and procedures that: (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of FTC Solar; (ii) 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 FTC Solar are being made only in accordance with authorizations of management and directors of FTC Solar; and (iii) provide reasonable assurance regarding the prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements of FTC Solar.

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 has performed an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2025 based upon criteria set forth in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management determined that our internal control over financial reporting was not effective as of December 31, 2025, solely because of the material weakness described above.

This Annual Report does not include an attestation report of the Company’s registered public accounting firm regarding internal control over financial reporting. Management’s report was not subject to attestation by the Company’s registered public accounting firm pursuant to rules of the Securities and Exchange Commission that permit the Company to provide only management’s report in this Annual Report based on our filer status.

Changes in internal control over financial reporting

There were no changes during the quarter ended December 31, 2025 in our internal control over financial reporting, other than as a result of obtaining control over Alpha Steel, as described above, that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.