Lake Forest, Illinois, USA, 03 April 2009 --- (BUSINESS WIRE) -- Packaging Corporation of America (NYSE: PKG), will hold a conference call on 21 April 2009, at 10:00 a.m. (Eastern Time) to discuss first quarter 2009 results. First quarter 2009 earnings will be released after the market closes on 20 April 2009.

For access to the conference call on 21 April, dial (866) 847-7864 (USA 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 also will be available from 1:00 p.m. (Eastern Time) on 21 April 2009, until 11:59 p.m. (Eastern Time) on 05 May 2009. To access the recording, dial (888) 266-2081 (USA and Canada) and (703) 925-2533 (International). The passcode is 1349789.
 
This call will be webcast by CCBN and can be accessed at PCA's Web site at: www.packagingcorp.com.

PCA is the fifth largest producer of containerboard and corrugated packaging products in the United States with sales of USD 2.4 billion in 2008. PCA operates four paper mills and 67 corrugated product plants in 26 states across the country.