Valued at $18.6 billion by market cap, Packaging Corporation of America (PKG) is a leading producer of containerboard and corrugated packaging products, serving a broad range of industrial and consumer end markets. Headquartered in Lake Forest, Illinois, the company operates under an integrated business model that includes manufacturing containerboard and converting it into corrugated boxes and packaging solutions. The packaging giant is expected to announce its fourth-quarter results shortly. Ahead of t ...