Clearwater Paper Announces Upcoming Investor Conference Participation

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

• June 4, 2024 – President and Chief Executive Officer Arsen Kitch will participate in a fireside chat at Stifel’s 2024 Cross Sector Insight Conference in Boston beginning at approximately 9:45 a.m. ET. The presentation will be webcast live and can be accessed via this link or by visiting the company’s investor relations website: https://ir.clearwaterpaper.com/investors/overview/default.aspx. Mr. Kitch will also be available for one-on-one and small group investor meetings.

• June 11, 2024 – Mr. Kitch and Senior Vice President of Finance and Chief Financial Officer Sherri Baker will attend the 2024 Wells Fargo Industrials Conference in Chicago. Mr. Kitch and Ms. Baker will be available for one-on-one and small group meetings.

About Clearwater Paper

Clearwater Paper is a premier supplier of private brand tissue to major retailers, including grocery, club, mass merchants, and discount stores. In addition, the company produces bleached paperboard used by quality-conscious printers and packaging converters, and offers services that include custom sheeting, slitting, and cutting. Clearwater Paper's employees build shareholder value by developing strong relationships through quality and service.

For additional information on Clearwater Paper, please visit our website at www.clearwaterpaper.com.

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Investors contact: Sloan Bohlen Solebury Strategic Communications 509.344.5906 [e-mail]

Media contact: Julia Joy Clearwater Paper Corporation 509.344.5953 [e-mail]