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About Closure Systems International

Who We Are

Closure Systems International, Inc. (CSI) is a global leader in plastic closure design, manufacturing and high speed capping equipment/application systems. Approximately 75+ billion closures are produced annually in CSI's 15+ manufacturing sites, strategically located in 10+ countries throughout the globe.

CSI integrates innovative closure technology, high-performance capping equipment and expert technical services and training support to help customers all over the world maximize their profits. These integrated closure and capping solutions deliver a total system of unsurpassed customer value and reliability.

Our Mission

To be the preferred global provider of closure solutions, delivering the lowest total cost of ownership for our customers

Our Values

Environmental and Health Safety

We will create a work environment that will protect the safety and health of our people and community.


We will act openly and honestly and always do what is right

Our Customers

Customer needs will drive our priorities.


We will be good stewards of the resources required to achieve business goals. We are constantly discovering and implementing new ways to improve our global environmental impact.


We will respect those with whom we interact in our words, actions and the challenges we set. We will encourage our people to work together, using their diverse skills and experiences, to identify and solve problems which improve business outcomes.


We will identify and execute unique solutions and increase our speed and focus in working with customers and suppliers to meet or exceed our financial commitments.

Our History


Aluminum closures were first developed at Alcoa's New Kensington, PA research lab. The first commercial aluminum closure was called a "Goldy", due to the bright gold coating. The first major customer was H.J. Heinz, which used the popular Goldy closure to seal sauces and ketchups.


Closure manufacturing operations began in Richmond, Indiana. At that time, the company was known as the Aluminum Seal Company.


Aluminum tamper-evident liquor, pharmaceutical and motor oil closures dominated their markets.


The resealable 28mm aluminum roll-on closure was developed for the beer and soft drink industries.


Alcoa CSI was created through the unification of Alcoa's worldwide metal closure and capping equipment businesses.


Alcoa CSI acquired H-C Industries, Inc., which had developed a patented compression molding process to make plastic closures for carbonated soft drinks. The first successful plastic closure for carbonated soft drinks was the "H-C Wing-Lok" design. With continuous updating and improvements in sealing and high-speed application, this design is still in demand in many regions of the world today.


The "Double-Lok" closure was developed to provide improved tamper evidence over existing designs. Alcoa CSI developed under-the-cap (UTC) video jet printing technology to provide high quality, low cost, flexible promotional capability. Aggressive expansion overseas continued with the addition of new plants in China, Bahrain, Hungary, and Russia. International expansion also included the addition of a European regional headquarters in London, a regional sales office in Singapore, and a technical service center in Malaysia. Alcoa CSI developed a new line of water closures, including a push-pull sports cap and offered other innovative developments including spout fitments for gable top juice containers and hot fill closures for isotonic drinks.


Alcoa CSI acquired MCG Closures, Ltd, expanding our presence throughout Europe. Southern Plastics (Kilgore, TX), producer of injection molded closures for the food, dairy and personal care industries, was also acquired. In 2003, Alcoa CSI created a new European headquarters in Barcelona, Spain to centralize regional decision-making and to further enhance technology development, including a state-of-the-art technology research and development center in the facility. A highly nimble, innovative and customer-focused organization to serve the specialized packaging, equipment and technical service needs of Europe was created.

In 2004, Alcoa CSI South America, the former Aluminio and Alusud closure businesses located in South America, became organizationally integrated with Alcoa CSI. In addition to Alcoa CSI's rotatory compression technology, the South American group also had extensive injection molding capability and experience, most notably in the edible oil closures market in Brazil and Argentina. Also importantly, CSI Egypt began producing closures near Cairo.


Rank Group Limited, headquartered in New Zealand, acquired Alcoa's Packaging Group, including Alcoa Closure Systems International in 2008. As a result, our company name became Closure Systems International, commonly abbreviated as CSI. Since then, CSI has continued aggressive global expansion; acquiring Innopack (Mexico) and Obrist North America, opening new closure production facilities in China and India, and developing important new joint ventures in a number of countries around the world.

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