Zoetis Inc.

Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of the company’s management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based upon that evaluation as of September 30, 2026, the company’s Chief Executive Officer and Chief Financial Officer concluded that the company’s disclosure controls and procedures are effective at a reasonable level of assurance in alerting them in a timely manner to material information required to be disclosed in our periodic reports filed with the SEC.

Changes in Internal Control over Financial Reporting

As part of a multi-year system implementation, the company began utilizing certain aspects of a new enterprise resource planning (“ERP”) system during the quarter ended September 30, 2026. Over the next several years, this ERP system will replace our existing core financial systems. In connection with this implementation, we are evaluating and enhancing our business processes as well as the design of our internal controls. While we believe that this new ERP system will enhance internal controls over financial reporting, there are inherent risks in implementing a new ERP system. Accordingly, we will continue to evaluate the design and operating effectiveness of these controls throughout the planned implementation period. There have been no other changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the quarter ended September 30, 2026, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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