LAKE FOREST, Ill.–(BUSINESS WIRE)–Packaging Corporation of America (NYSE: PKG) today reported second quarter 2021 net income of $207 million, or $2.17 per share, and net income of $207 million, or $2.17 per share, excluding special items. Second quarter net sales were $1.9 billion in 2021 and $1.5 billion in 2020. Diluted earnings per share attributable to Packaging Corporation of America shareholders       Three Months Ended   June 30   2021   2020   Change Reported Diluted EPS $ 2.17     $