packaging corporation of america (pca) is the fourth largest producer of containerboard and corrugated packaging products in the united states. in 2013 pca produced 2.7 million tons of containerboard and shipped 38.4 billion square feet of corrugated products. in 2013 pca acquired boise, inc., growing to $5.5 billion in sales and 13,600 employees. pca operates eight mills and a total of 94 converting operations/locations. pca is the third largest producer of uncoated freesheet paper in north america. pca combines great products with a creative and knowledgeable total-service team to provide ideas and solutions for any packaging need: "when you choose packaging corporation of america, you work with people who do the right things for each other and for our customers. we believe in utilizing the power of strong collaborative relationships, bound by the trust we have earned, to deliver innovative packaging solutions and an outstanding service experience." pca is a publically traded c