ENTEGRIS INC

FORM 10-Q

TABLE OF CONTENTS

FOR THE QUARTER ENDED September 27, 2025

Cautionary Statements

This Quarterly Report on Form 10-Q (this “Quarterly Report”) contains “forward-looking statements”. The words “believe,” “expect,” “anticipate,” “intend,” “estimate,” “forecast,” “project,” “should,” “may,” “will,” “would” or the negative thereof and similar expressions are intended to identify such forward-looking statements. These forward-looking statements are based on current management expectations and assumptions only as of the date of this Quarterly Report. They are not guarantees of future performance and they involve substantial risks and uncertainties that are difficult to predict and that could cause actual results to differ materially from the results expressed in, or implied by, these forward-looking statements.

These risks and uncertainties include, but are not limited to, fluctuations in the demand for semiconductors and the overall volume of semiconductor manufacturing; the impact of global economic uncertainty, including financial market volatility, which may result in lower consumer spending, inflationary pressures, a higher interest rate environment, an economic recession, and bank instability; raw material shortages, supply and labor constraints, and price increases; fluctuations in the Company’s revenues and operating results and their impact on the Company’s stock price; supply chain interruptions and the Company’s dependence on sole, single and limited source suppliers; risks related to the Company’s international operations, including challenges in hiring and integrating workers in different countries, maintaining appropriate business practices across the varied jurisdictions in which we operate, and engaging and managing global, regional and local third-party service providers; the impact of regional and global instabilities, hostilities and geopolitical uncertainty, including, but not limited to, the ongoing conflicts between Ukraine and Russia, between Israel and Hamas and other conflicts in the Middle East, as well as the global responses thereto; export controls, economic sanctions, and similar restrictions; tariffs, additional taxes, and other protectionist measures resulting from international trade disputes, strained international relations, and changes in foreign and national security policy; the concentration and consolidation of the Company’s customer base; the Company’s ability to meet rapid demand shifts; the Company’s ability to continue technological innovation and to introduce new products to meet customers’ rapidly changing requirements; manufacturing and other operational disruptions or delays; IT system failures, network disruptions, and cybersecurity risks; the risks associated with the use and manufacture of hazardous materials; goodwill impairment; challenges in attracting and retaining qualified personnel; the Company’s ability to protect and enforce intellectual property rights; the Company’s environmental, social, and governance commitments; legal and regulatory risks, including changes in laws and regulations related to the environment, health and safety, accounting standards, and corporate governance, across the jurisdictions in which the Company operates; changes in taxation or adverse tax rulings; the ability to obtain government incentives and the possibility that competitors will benefit from government incentives for which the Company does not qualify; the amount and consequences of the Company’s indebtedness, its ability to repay its debt and to obtain future financing, and the Company’s obligations under its current outstanding credit facilities; volatility in the Company’s stock price; the payment of cash dividends and the adoption of future share repurchase programs; the Company’s ability to effectively implement any organizational changes; substantial competition; the Company’s ability to identify, complete and integrate acquisitions, joint ventures, divestitures or other similar transactions; the impacts of climate change; and other matters. These risks and uncertainties also include, but are not limited to, the risk factors and additional information described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Securities and Exchange Commission (the “SEC”) on February 12, 2025, including under the heading “Risk Factors” in Item 1A, and in the Company’s other periodic filings with the SEC. Except as required under the federal securities laws and the rules and regulations of the SEC, the Company undertakes no obligation to update any forward-looking statements or information contained herein, which speak as of their respective dates.