Clearwater Paper Corp. (CLW)

[SAE]

Clearwater Paper Announces First Quarter 2010 Conference Call and Audio Web Cast Clearwater Paper Corporation (NYSE: CLW) today announced that it will host its first quarter 2010 financial results conference call on Thursday, April 29, 2010, at 8 a.m. Pacific Time (11 a.m. Eastern Time). The company will issue its financial results before the market opens the same day.

Investors may access the conference call by dialing 877-879-6207 (for US/Canada investors) or 719-325-4791 (for international investors). The audio Web cast may be accessed on the company’s Web site at http://ir.clearwaterpaper.com/events.cfm.

An accompanying presentation will be available for downloading from http://ir.clearwaterpaper.com/events.cfm before the market opens. The Web cast will be audio only. Investors are recommended to download the accompanying presentation prior to the call.

For those unable to participate in the call, an archived recording will be available through Clearwater Paper’s Web site at www.clearwaterpaper.com under “Investor Relations” following the conference call.

ABOUT CLEARWATER PAPER

Clearwater Paper manufactures quality consumer tissue, bleached paperboard and wood products at six facilities across the country. The company is a premier supplier of private label tissue to major retail grocery chains, and also produces bleached paperboard used by quality-conscious printers and packaging converters. Clearwater Paper’s 2,400 employees build shareholder value by developing strong customer partnerships through quality and service.

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