Northern Technologies International Corporation Common Stock

Northern Technologies International Corp. engages in the development and marketing of proprietary environmentally beneficial products and services. The company is headquartered in Circle Pines, Minnesota and currently employs 91 full-time employees. The Company’s primary business is corrosion prevention, marketed mainly under the ZERUST brand. The company has been selling its proprietary ZERUST products and services to the automotive, electronics, electrical, mechanical, military, and retail consumer markets. The company offers worldwide on-site technical consulting for rust and corrosion prevention issues. Its technical service consultants work directly with the end users of its products to analyze their specific needs and develop systems to meet their technical requirements. The company also markets and sells a portfolio of bio-based and biodegradable polymer resin compounds and finished products marketed under the Natur-Tec brand. Its ZERUST rust and corrosion-inhibiting products include plastic and paper packaging, liquids, coatings, rust removers, cleaners, and diffusers.