September 16, 2013: Packaging Corporation of America (PCA) has agreed to buy Boise in a deal valued at nearly $1.995 billion in cash including $714 million of Boise’s outstanding debt. PCA will buy all the shares of Boise for $12.55 per share, representing a premium of nearly 26 percent. The acquisition will add immediately to PCA’s earnings as well as strengthen its corrugated products business unit.