CELESTICA INC

Cautionary Note Regarding Forward-looking Statements

This press release contains forward-looking statements, including, without limitation, those related to: strengthening demand in our CCS segment, demand environment and customer forecasts, our anticipated financial and/or operational results, guidance and outlook, including statements under the headings "Q2 2025 Highlight", "Third Quarter of 2025 (Q3 2025) Guidance", and "2025 Annual Outlook Update", developments related to new customer wins, program inclusions, timing of production ramps, anticipated economic conditions, industry trends, underlying market growth rates, customer demand, prospects and opportunities, and strategic initiatives. Such forward-looking statements may, without limitation, be preceded by, followed by, or include words such as “believes,” “expects,” “anticipates,” “estimates,” “intends,” “plans,” “continues,” “project,” "target," "outlook," "goal," "guidance", “potential,” “possible,” “contemplate,” “seek,” or similar expressions, or may employ such future or conditional verbs as “may,” “might,” “will,” “could,” “should,” or “would,” or may otherwise be indicated as forward-looking statements by grammatical construction, phrasing or context. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the U.S. Private Securities Litigation Reform Act of 1995, where applicable, and for forward-looking information under applicable Canadian securities laws.

Forward-looking statements are provided to assist readers in understanding management’s current expectations and plans relating to the future. Forward-looking statements reflect our current estimates, beliefs and assumptions, which are based on management’s perception of historic trends, current conditions and expected future developments, as well as other factors it believes are appropriate in the circumstances, including certain assumptions about anticipated CCS and ATS revenue growth; anticipated demand levels across our businesses; continuing operating leverage and improving mix; the impact of anticipated market conditions on our businesses; tax and interest rates; continued advancement and commercialization of artificial intelligence (AI) technologies and cloud computing; supporting sustained high levels of capital expenditure investments by leading hyperscaler, AI, and data center customers; the economy; our customers; our suppliers; no material changes to tariffs or trade restrictions compared to what are in effect as of July 28, 2025; that our customers will retain liability for and we will be able to recover substantially all costs from customers relating to product/component tariffs and countermeasures; no material changes in business activities resulting from current macroeconomic trends and uncertainties, including evolving global tariff and trade negotiations; our ability to achieve our strategic goals; the number of outstanding shares; as well as other market, financial and operational assumptions. Readers are cautioned that such information may not be appropriate for other purposes. Readers should not place undue reliance on such forward-looking information.

Forward-looking statements are not guarantees of future performance and are subject to risks that could cause actual results to differ materially from those expressed or implied in such forward-looking statements, including, among others, risks related to: customer and segment concentration; reduction in customer revenue; erosion in customer market competitiveness; changing revenue mix and margins; uncertain market, industry, political and economic conditions; customer requests to transfer manufacturing of products from one facility to another; changes to policies or legislation; operational challenges such as inventory management and materials and supply chain constraints; and program ramps; the

cyclical nature and/or volatility of certain of our businesses; talent management and inefficient employee utilization; risks related to the expansion or consolidation of our operations; cash flow, revenue, and operating results, and tax and interest variability; technology and IT disruption; increasing legal, tax and regulatory complexity and uncertainty (including in relation to our or our customers' businesses); integrating and achieving the anticipated benefits from acquisitions; and the potential adverse impacts of events outside of our control.

For more exhaustive information on the foregoing and other material risks, uncertainties and assumptions readers should refer to our public filings at www.sedarplus.ca and www.sec.gov, including in our most recent Management's Discussion and Analysis of Financial Condition and Results of Operations, Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other documents filed with, or furnished to, the U.S. Securities and Exchange Commission, and the Canadian Securities Administrators, as applicable.

Forward-looking statements speak only as of the date on which they are made, and we disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable law.

All forward-looking statements attributable to us are expressly qualified by these cautionary statements.