DART CONTAINER OF MICHIGAN LLC is a plastics company based out of 500 HOGSBACK RD, Mason, Michigan, United States.

A global leader in developing and producing responsible packaging for food, beverage, pharma, medical, home- and personal-care, and other products. Amcor works with leading companies around the world to protect their products and the people who rely on them, differentiate brands, and improve supply chains through a range of flexible and rigid packaging, specialty cartons, closures, and services. The company is focused on making packaging that is increasingly light-weighted, recyclable and reusable, and made using an increasing amount of recycled content.

Passions Made Possible. For over 50 years, JAC Products has been designing, engineering and manufacturing products as unique as your needs. We’re the acknowledged leader in automotive exterior functional components, industrial and structural extrusions and assemblies, and a broad range of standard and custom extrusions. At the core of our company is the development and manufacturing of roof carrier systems for the international automotive industry. After we started designing the first simple load carriers in 1970, we grew to become one of the leading suppliers in the automotive industry under the name JAC Products. Our company continues to set the bar for innovative partnerships and products. We believe an essential element of our success lies in our promise to treat our employees, customers, suppliers and investors just as we would like to be treated, and to conduct business with impeccable ethics, honesty, and integrity. “Product innovation has been at the heart of JAC Products from its beginning and remains so today. Our products provide value-added differentiation for our customers’ vehicles. Our ability to design and build innovative products with the stylish integration of extruded, molded, and roll-formed components, in unique combinations, is one significant way in which JAC Products enables our customers to achieve their specific vision for each vehicle. The execution of a well-conceived business plan is at the heart of our performance, and the relentless pursuit of improvement in all aspects of our work is key to maintaining our market leadership position."​
 -Mike Wood - President and CEO

Anderson Development Company (ADC), a wholly-owned subsidiary of Mitsui Chemicals, is an award-winning, innovative specialty and custom chemical manufacturer. We're committed to providing value-added solutions through our research and development capabilities, our superior products and by being personal, efficient, and responsive to our customers and employees. Since our founding in 1967, we have been moving forward aggressively on many fronts to capitalize on solid growth opportunities, to expand our global presence and to sharpen our product offerings. Through our own extensive research, development and manufacturing capabilities and our parent companies "Global Body of Knowledge"​, we are able to offer innovative specialty and custom chemicals which help improve the quality of life for our customers while typically reducing the impact to our environment. To show this commitment, Anderson Development Company supports the American Chemical Council's Responsible Care program, the chemical industry's initiative to continually improve health, safety, security, and environmental performance worldwide. The key to our success has always been our people who strive to meet and exceed our customer's expectations. For over 37 years, Anderson Development Company's dedication to excellence has created long-term relationships with a wide range of companies -- from smaller domestic firms to large international Fortune 500 companies.

At SEKISUI Voltek, we create the cross-linked, closed-cell polyolefin foams that make your ideas a reality. As a recognized innovator with over 50 years of experience, we’ve brought our solutions to industries that have helped create new and revolutionized product designs within each of them. We strive for excellence through the spirit of teamwork and are guided by the following principles: Service, Speed and Superiority. We create products that address needs – your needs and those of your customers. We have three main product lines: Volara®, Volextra®, VolaraBLOCK®, and our access to a global network of SEKISUI companies expands the solutions we can bring to you. We can modify elements of our products – such as resin selection, additives, foaming technologies, crosslinking parameters, density, and thickness – so we can do whatever it takes to help you solve your challenges. We’ll even create a new product designed specifically for it if necessary. SEKISUI Voltek has manufacturing facilities in Michigan, and sales offices located throughout the United States, making us the leading manufacturer of cross-linked polyolefin foam in North and South America. As a High-Performance Plastics Company within SEKISUI, we are an integral part of a worldwide network dedicated to problem solving, continuous improvement and complete customer satisfaction.

RheTech is an organization focused on What you need! We are a dedicated, full-service provider of reinforced polypropylenes, TPOs, polyamides; and color and additive concentrates. RheTech’s product line meets the right balance of performance and economics: RheComp® - Mineral, glass fiber reinforced polypropylenes and TPO compounds RheVision® - Biocomposites, sustainable solutions RheLon® - Mineral and glass fiber reinforced polyamides RheTech Colors® - Color and additive concentrates First-rate engineering/application development and field technical support, coupled with our flexible manufacturing approach, allows us to deliver competitive customized products and OEM-approved materials, on-time and to-specification. Our people provide personal service from dedicated account managers and customer service representatives who know you and your business. They are able to respond to your needs, reducing waste and ensuring the desired outcome. Our ISO 9001 and 17025 certifications, together with our state-of-the-art manufacturing processes and equipment, deliver the right material to the right specification. Our facilities are located in Whitmore Lake and Fowlerville, Mich.; Sandusky, Ohio; and Blacksburg, South Carolina.

The world leader in sanitation and care products for the RV, marine, camping and truck markets, Thetford is a global company that improves mobile living. Headquartered in Ann Arbor, Mich., Thetford markets its products through various national and international distribution systems, including Original Equipment Manufacturers (OEMs), Wholesale Distributors (WDs) and a range of national retail outlets. In addition to our manufacturing facilities in the North America, we have additional facilities in the Netherlands, Great Britain, Italy (Tecma), and China. Thetford, which also makes residential products, is a 50-year-young company that prides itself on creative design and is committed to producing high-quality products that exceed the needs of a demanding marketplace.

At TH Plastics, we pride ourselves on building strong and lasting customer relationships built on expertise, quality, and responsiveness. TH Plastics is a leader in the engineering and manufacturing of high quality decorative solutions for the Appliance, Automotive, and other industries. Headquartered in Mendon, Michigan with additional manufacturing facilities in Bowling Green, Ohio; Findlay, Ohio; and Tiffin, Ohio. We have been providing competitive solutions since 1974.

Hastings is a world-class manufacturer of fiberglass products and tools for the electrical power and communications industries. Since 1959, Hastings has pioneered design and fabrication of hot line tools to withstand today’s toughest field conditions. With a passionate commitment to innovation, Hastings products make the job safer and easier.

Carcoustics, with its headquarter in Leverkusen, is an innovative, medium-sized company on a course of international growth. The company develops and produces solution-oriented acoustic and thermally-effective components as well as products in the area of electromagnetic compatibility for the automotive and commercial vehicles industry. Customized solutions are at the heart of its product portfolio.

21st Century Plastics Corporation is a 100% employee owned custom thermoplastic injection molder founded in 1988. We are a diversified company whose customer list is still growing. Currently we are involved in the manufacturing of seating products, industrial products, building and construction products, fire sprinkler system components, automotive parts, and more.