SONOCO PRODUCTS CO

Evaluation of Disclosure Controls and Procedures

Under the supervision, and with the participation, of our management, including our Company’s Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), we conducted an evaluation pursuant to Rule 13a-15(b) under the Exchange Act of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act). Based on this evaluation, our CEO and CFO concluded that such controls and procedures, as of September 28, 2025, the end of the period covered by this Quarterly Report on Form 10-Q, were effective to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms. For this purpose, disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information that is required to be disclosed in the reports we file or submit under the Exchange Act is accumulated and communicated to the Company’s management, including the CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

On December 4, 2024, we acquired Titan Holdings I B.V. (“ Eviosys”) and, as disclosed in Item 9A of our Annual Report on Form 10-K for the year ended December 31, 2024, management excluded Eviosys from our assessment of internal control over financial reporting as of December 31, 2024 as permitted by SEC rules and regulations. We are in the process of integrating Eviosys, now operated as Sonoco Metal Packaging EMEA, into Sonoco’s internal control structure during fiscal 2025. Except as it relates to the integration activities of the Metal Packaging EMEA business, there were no changes in the Company’s internal control over financial reporting that occurred during the quarter ended September 28, 2025 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.