Packaging Corporation of America Schedules Conference Call to Discuss Fourth Quarter and Full Year 2008 Results

Packaging Corporation of America (NYSE: PKG), will hold a conference call on Wednesday, January 21, 2009 at 10:00 a.m. (Eastern Time) to discuss fourth quarter 2008 results. Fourth quarter 2008 earnings will be released after the market closes on January 20, 2009.

For access to the conference call on January 21st, please dial (866) 847-7864 (U.S. and Canada) and (703) 639-1430 (International) by 9:45 a.m. (Eastern Time). The conference call leader will be Paul Stecko.

A replay of the call will also be available from 1:00 p.m. (Eastern Time) on January 21, 2009 until 11:59 p.m. (Eastern Time) on February 4, 2009. To access the recording, please dial (888) 266-2081 (U.S. and Canada) and (703) 925-2533 (International). The passcode is 1320993.

This call will be webcast by CCBN and can be accessed at PCA’s website at: www.packagingcorp.com.

PCA is the fifth largest producer of containerboard and corrugated packaging products in the United States with sales of $2.3 billion in 2007. PCA operates four paper mills and 67 corrugated product plants in 26 states across the country.