Packaging Corporation of America Announces Paul T. Stecko to Become Non-Executive Chairman at Year End

  Packaging Corporation of America Announces Paul T. Stecko to Become
  Non-Executive Chairman at Year End

Business Wire

LAKE FOREST, Ill. -- June 25, 2013

Packaging Corporation of America (NYSE: PKG) announced today that Paul T.
Stecko will continue to serve as the company’s executive chairman until his
retirement on December 30, 2013, at which time he will become non-executive
chairman of the company’s board of directors. As non-executive chairman, he
will lead the activities of PCA’s board of directors. Mr. Stecko will also
continue to serve the company on major strategic initiatives as well as
important shareholder matters under an agreement that will run through
December 31, 2015. Mr. Stecko has been PCA’s executive chairman since 2010 and
served as chairman and CEO from 1999 to 2010.

Commenting on the announcement, Mark W. Kowlzan, CEO of PCA, said, “In light
of Paul’s vast experience and contributions to PCA, as well as our long-term
relationship, I am very pleased that he will continue his leadership of our
board of directors and involvement in our strategic efforts.”

PCA is the fourth largest producer of containerboard and corrugated packaging
products in the United States with sales of $2.8 billion in 2012. PCA operates
four paper mills and 71 corrugated products plants in 26 states across the
country.

Contact:

Packaging Corporation of America
Barbara Sessions
INVESTOR RELATIONS: (877) 454-2509
PCA’s Website: www.packagingcorp.com