Northern Technologies International Corp. engages in the development and marketing of proprietary environmentally beneficial products and services. It operates through the Natur-Tec and Zerust segments. The Natur-Tec segment manufactures bio-degradable and bio-based plastics for industrial and consumer applications. The Zerust segment provides corrosion mitigation solutions and services to oil, gas, and chemical processing applications. The company was founded in 1970 and is headquartered in Circle Pines, MN.
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