Packaging Corporation of America

Lake Forest, Illinois, USA, 04 October 2006 --(BUSINESS WIRE)-- Packaging Corporation of America (NYSE: PKG), will hold a conference call on 18 October 2006 at 10:00 a.m. Eastern Time to discuss third quarter 2006 results. Third quarter 2006 earnings will be released after the market closes on 17 October 2006.

For access to the 18 October conference call, dial (866) 227-1582 (USA and Canada) and (703) 639-1129 (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 18 October 2006 to 11:59 p.m. Eastern Time on 02 November 2006. To access the recording, dial (888) 266-2081 (USA and Canada) and (703) 925-2533 (international). The passcode is 978595.

This call will be webcast by CCBN and can be accessed at PCA's Website at www.packagingcorp.com.

PCA is the sixth largest producer of containerboard and corrugated packaging products in the United States, with sales of USD 2.0 billion in 2005. PCA operates four paper mills and 68 corrugated product plants in 26 states across the country.