A Global Leader in Bioplastics

Circule™ Packaging.  Your Brand, Our Expertise

With research and product development capabilities in the USA, India and China, Circule™  is uniquely positioned to support your brands circular efforts on a global scale.  Circule™ packaging solutions are designed with your brand and goals in mind.

World-Class Expertise

  • Experienced R&D team dedicated to product innovation, manufacturing support, quality control, and sales support
  • Strategic collaboration with Michigan State University, the premier institute for research on Advanced Biobased Materials
  • Projects funded by NSF and DoD

Global Capabilities

  • Fully equipped R&D laboratories in Minnesota and Ohio, USA
  • Compounding Facility and Technical Center in Zhejiang, China
  • Application Development Center in Chennai, India
  • Finished Product manufacturing partners in USA, China, India, Malaysia and Italy

Environmentally Beneficial Materials Science

Northern Technologies International Corporation (NTIC)

Is a developer, manufacturer, and marketer of corrosion management solutions including services, packaging, coatings, and systems.  NTIC produces and manufactures products under the Zerust/Excor, Zerust: Oil and Gas, and Natur-Tec® brands.

Northern Technologies International Corporation is publicly traded on the NASDAQ.  Symbol: NTIC


The success of our clients is our priority.  Natur-Tec® partners with powerful brands and organizations all over the world to ensure the quality of all Circule™ packaging products.

 Circular Packaging.Let's Talk About It. 

Our team is here to ensure your success!