Packaging Corporation of America (PCA) is a producer of containerboard and white papers. The Company operates eight mills and 99 corrugated products manufacturing plants. The Company’s operations are primarily in the United States and it has converting operations in Europe, Mexico, and Canada. The Company operates through three segments: Packaging, Paper, and Corporate and Other. The Company’s corrugated products manufacturing plants produce a variety of corrugated packaging products, including shipping containers used to protect and transport manufactured goods, multi-color boxes, and displays. It manufactures its Packaging products at five containerboard mills, one containerboard machine, corrugated manufacturing operations, and protective packaging operations. Its Paper segment manufactures and sells white papers. Its Corporate and Other segment includes corporate support staff services and related assets and liabilities, and foreign exchange gains and losses.