Business Outlook Positive for American Containers11/20/2018 American Containers, Inc., headquartered in Plymouth, has just announced their third expansion in 4 years. The company plans to invest nearly $1.2 million in equipment to improve production capabilities and maintain their position as a valued Plymouth manufacturer. American Containers is a family owned and operated business, and a leader in the corrugated packaging industry. This expansion follows an over $500,000 capital investment towards new equipment and building improvements in 2017. The most recent expansion will increase efficiency and profits.