Clearwater Paper Corporation (NYSE: CLW) (Clearwater Paper” or the “Company”) today announced upcoming participation in the following investor conferences:

• September 16, 2025 – President and Chief Executive Officer Arsen Kitch will participate in a breakout session at the 2025 RBC Capital Markets Global Industrials Conference in New York. Mr. Kitch and Senior Vice President and Chief Financial Officer Sherri Baker will also be available for one-on-one and small group meetings.
• September 29, 2025 – Senior Vice President and Chief Financial Officer Sherri Baker will participate in a fireside chat at TD Securities Forest Products and Packaging Conference in Toronto beginning at approximately 10:30am ET. There is no webcast for the fireside chat, but Ms. Baker will be available for one-on-one and small group investor meetings at the conference.

About Clearwater Paper

Clearwater Paper is a premier independent supplier of paperboard packaging products to North American converters. Headquartered in Spokane, Wash., our team produces high-quality paperboard that provides sustainable packaging solutions for consumer goods and food service applications. For additional information, please visit our website at www.clearwaterpaper.com.

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Participation in conferences in New York and Toronto in September