Packaging Corporation of America (PCA) is a producer of containerboard and corrugated packaging products, and uncoated free sheet. The Company operates through three segments: Packaging, Paper, and Corporate and Other. The Company operates over eight mills and approximately 90 corrugated products manufacturing plants. It operates primarily in the United States and has converting and distribution operations in Canada. 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. Its Paper segment operates under the trade name Boise Paper. The Company manufactures and sells white papers, including both commodity and specialty papers. The Company's Corporate and Other segment includes corporate support staff services, related assets and liabilities, and foreign exchange gains and losses.