RockTenn was a major American packaging company that specialized in producing paperboard and containerboard products. Founded in 1973, it grew through various acquisitions and mergers, becoming one of the largest packaging companies in North America. RockTenn focused on sustainable practices and innovative packaging solutions for various industries, including food and consumer goods. In 2015, RockTenn merged with MeadWestvaco, forming a new company called WestRock. This merger combined their strengths in packaging and paper products, allowing them to better serve their customers and expand their market reach. WestRock continues to operate with a commitment to sustainability and efficiency in the packaging industry.