Tronox Holdings plc

Evaluation of Disclosure Controls and Procedures

Under the supervision of and with the participation of Tronox’s management, including our CEO and CFO, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) (the “Exchange Act”), as of September 30, 2026, the end of the period covered by this report. Tronox’s disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information requiredto be disclosed by Tronox in the reports that it files or submits under the Exchange Act is accumulated and communicated to Tronox’s management, including Tronox’s principal executive and principal financial officers, or other persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Based on that evaluation, we have concluded that the Company’s disclosure controls and procedures were effective as of that date.

An evaluation of our internal control over financial reporting was also performed to determine whether any changes have occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Changes in Internal Control over Financial Reporting

We are currently undergoing a multi-year IT-enabled transformation program that includes increased automation of both operational and financial systems, including the global enterprise risk management program, through new and upgraded systems, technology and processes. As part of such transformation program, during the second and third quarter of 2026, we implemented upgrades to our financial systems and platforms in certain regions. The full implementation is expected to be completed over the next couple of years. As the phased implementation of this system occurs, we expect certain changes to our processes and procedures which, in turn, will result in changes to our internal control over financial reporting.

While we expect this transformation program to strengthen our internal financial controls, management will continue to evaluate and monitor our internal controls as processes and procedures in each of the affected areas evolve.

Other than as discussed above, during the quarter ended September 30, 2026, there were no other changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.