SECOND QUARTER EARNINGS RELEASE MATERIALS AUGUST 1, 2023 BECKY BARCKLEY Corporate Controller and Interim Chief Financial Officer Cautionary Statement Regarding Forward Looking Statements Non-GAAP Financial Measures © Clearwater Paper Corporation 2023 2 Overall • Net income $30 million • Adjusted EBITDA $71 million, up $8 million versus Q2 2022 • SBS prices increased from Q2 2022 Consumer Products CLEARWATER PAPER CORPORATION ARSEN S. KITCH President, Chief Executive Officer And Director FORWARD LOOKING STAT ...

Clearwater Paper Corporation (NYSE:CLW) Q2 2023 Earnings Conference Call August 1, 2023 5:00 PM ET Company Participants Sloan Bohlen – Investor Relations Arsen Kitch – President and Chief Executive Office Becky Barckley – Corporate Controller and Interim Chief Financial Officer Conference Call Participants Paul Quinn – RBC Capital Markets Operator Thank you for standing by. My name is Dina, and I will be your conference operator today. At this time, I would like to welcome everyone to the Clearwater Paper’s ...

Form 10-Q ITEM 5. Other Information 22 CLEARWATER PAPER CORPORATION Consolidated Statements of Comprehensive Income (Unaudited) | --- | --- | --- | --- | --- | --- | --- | --- | |-------------------------------------------------------------------------------------------|-------------------|----------------|-------|------------------------------|-------------------|----------------------------------------|------------------------------| | (In millions, except share amounts which are in thousands) | Common \n ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Exact name of registrant as specified in its charter) Form 10-Q (Mark One) ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-34146 CLEARWATER PAPER CORPORATION Delaware 20-3594554 (State or other j ...

| --- | --- | |----------------------------------------------------------------------------|------------------------------------------| | | | | | | | Delaware | 20-3594554 | | incorporation or organization) (State or other jurisdiction of | (I.R.S. Employer Identification No.) | | 601 West Riverside, Suite 1100 | | | Spokane, WA | 99201 | | (Address of principal executive offices) | (Zip Code) | | | | Largeacceleratedfiler Non-acceleratedfiler Indicate by check mark whether any of those error corrections ar ...

Clearwater Paper Corporation (NYSE:CLW) Q3 2022 Earnings Conference Call October 31, 2022 5:00 PM ET Company Participants Sloan Bohlen - IR Arsen Kitch - President and CEO Michael Murphy - CFO Conference Call Participants Adam Josephson - KeyBanc Capital Markets Paul Quinn - RBC Capital Markets Mark Wilde - BMO Capital Markets Operator Good afternoon. My name is Dennis, and I will be your conference operator today. At this time, I would like to welcome everyone to the Clearwater Paper Third Quarter 2022 Ea ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-34146 CLEARWATER PAPER CORPORATION (Exact name of registrant as specified in its charter) Delaware 20-3594554 (State or oth ...

Clearwater Paper Corporation (NYSE:CLW) Q2 2022 Earnings Conference Call August 2, 2022 5:00 PM ET Company Participants Sloan Bohlen - Investor Relations Arsen Kitch - President and Chief Executive Officer Mike Murphy - Chief Financial Officer Conference Call Participants Adam Josephson - KeyBanc Capital Markets Mark Wilde - BMO Capital Markets Paul Quinn - RBC Capital Markets Operator Good day, and thank you for standing by. Welcome to the Clearwater Paper 2Q '22 Earnings Call. [Operator Instructions] I wi ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-34146 CLEARWATER PAPER CORPORATION (Exact name of registrant as specified in its charter) Delaware 20-3594554 (State or other ju ...

Clearwater Paper Corporation (NYSE:CLW) Q1 2022 Earnings Conference Call April 28, 2022 5:00 PM ET Company Participants Sloan Bohlen - Investor Relations Arsen Kitch - President and Chief Executive Officer Mike Murphy - Chief Financial Officer Conference Call Participants Adam Josephson - KeyBanc Capital Markets Mark Wilde - BMO Capital Markets Paul Quinn - RBC Capital Markets Operator Good day. My name is Emma and I will be your conference operator today. At this time, I would like to welcome everyone to t ...