MATRIX SERVICE CO

The management of Matrix Service Company and its wholly-owned subsidiaries (the “Company”) is responsible for establishing and maintaining adequate internal control over financial reporting. The 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 U.S. generally accepted accounting principles. Internal control over financial reporting includes 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 the Company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. 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 (iii) 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.

All internal control systems, no matter how well designed, have inherent limitations and cannot provide absolute assurance that all objectives will be met. Internal control over financial reporting is a process that involves diligence and is subject to lapses in judgment and human error. Internal control over financial reporting can also be circumvented by collusion or management override of controls. Because of these limitations, there is a risk that material misstatements may not be prevented or detected on a timely basis.

The Company’s management assessed the effectiveness of the Company’s internal control over financial reporting as of June 30, 2026. In making this assessment, the Company’s management used the criteria established in Internal Control—Integrated Framework (2013) set forth by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) in Internal Control-Integrated Framework.

Management’s assessment included an evaluation of such elements as the design and operating effectiveness of key financial reporting controls, process documentation, accounting policies, overall control environment and information systems control environment. Based on this assessment, the Company’s management has concluded that the Company’s internal control over financial reporting as of June 30, 2026 was effective.

Deloitte & Touche LLP, an independent registered public accounting firm, has issued an attestation report on the effectiveness of the Company’s internal control over financial reporting as of June 30, 2026. Deloitte & Touche LLP’s report on the Company’s internal control over financial reporting is included herein.