Packaging Corporation of America (PCA) is a producer of containerboard products and uncoated freesheet. The Company operates through three segments: Packaging, Paper, and Corporate and Other. The Packaging segment produces a range of corrugated packaging products. The Paper segment manufactures and sells a range of papers, including communication-based papers and pressure sensitive papers. The Company's containerboard mills produces linerboard and semi-chemical corrugating medium, which are papers primarily used in the production of corrugated products. The Company's corrugated products manufacturing plants produce a range of corrugated packaging products, including conventional shipping containers used to protect and transport manufactured goods, multi-color boxes and displays. The Company also produces packaging for meat, fresh fruit and vegetables, processed food, beverages, and other industrial and consumer products.