Packaging Corporation of America (PCA) is a world class manufacturer of containerboard and corrugated packaging. Our focus on a single line of business not only differentiates us from our major competitors, but also helps us achieve levels of operational excellence that are highly respected within the industry. With 2003 net sales of $1.7 billion and 7,900 employees, PCA produced 2.2 million tons of containerboard and shipped 28.1 billion square feet of corrugated products.