MINERALS TECHNOLOGIES INC

Disclosure Controls and Procedures

As of the end of the period covered by this report, and under the supervision and with participation of the Company’s management, including the Chief Executive Officer and the Chief Financial Officer, the Company carried out an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures, pursuant to Exchange Act Rule 13a-15(b). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of December 31, 2025.

Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, we have included a report of management’s assessment of the design and operating effectiveness of our internal controls as part of this report. Management’s report is included in our Consolidated Financial Statements on page F-42 of this report under the caption entitled “Management’s Report on Internal Control Over Financial Reporting.”

Changes in Internal Control Over Financial Reporting

There were no changes in the Company’s internal control over financial reporting during the fourth fiscal quarter of 2025 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.