1st Quarter Results

6 May 2026

Filing of the International Paper CompanyQuarterly Report on Form 10-Q for the Period Ended 31 March 2026

The Quarterly Report on Form 10-Q for the period year ended 31 March 2026 (the "Q1 2026 Report") has been published by International Paper Company and was filed with the U.S. Securities and Exchange Commission on 5 May 2026. The Q1 2026 Report is available to view on the Company's website at: Financial Reports | International Paper

About International Paper (NYSE: IP; LSE: IPC)

International Paper creates sustainable packaging solutions that enable our customers, teammates and shareowners to thrive in an ever-changing world. We are a leader in corrugated packaging, partnering with customers across industries to protect what matters most, strengthen supply chains and create lasting value. Learn more at internationalpaper.com.

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Contacts:

Media: newsroom@ipaper.com

Investors: Mandi Gilliland; 901-419-4595; Michele Vargas, 901-419-7287