MINNEAPOLIS, Aug. 25, 2011 (GLOBE NEWSWIRE) -- Northern Technologies International Corporation (Nasdaq:NTIC) today announced that Matthew Wolsfeld, Chief Financial Officer of NTIC, will be presenting at the Rodman & Renshaw Annual Global Investment Conference, to be held at The Waldorf Astoria in New York, on September 12—13, 2011.

Matthew Wolsfeld, NTIC's CFO commented, "I look forward to attending and presenting at the Rodman & Renshaw Conference in New York as well as meeting one-on-one with investors. This conference will provide NTIC a great forum to further introduce and educate institutional investors on the opportunities that NTIC has to grow its business."

Mr. Wolsfeld will be presenting at 4:00 PM EST on September 12^th.

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About Northern Technologies International Corporation

Northern Technologies International Corporation develops and markets proprietary environmentally beneficial products and technical services either directly or via a network of joint ventures and independent distributors in over 55 countries. NTIC's primary business is corrosion prevention. NTIC has been selling its proprietary ZERUST® rust and corrosion inhibiting products and services to the automotive, electronics, electrical, mechanical, military and retail consumer markets, for over 35 years. NTIC also offers worldwide on-site technical consulting for rust and corrosion issues. NTIC's technical service consultants work directly with the end users of NTIC's products to analyze their specific needs and develop systems to meet their technical requirements. In addition, NTIC markets proprietary bio-plastic technologies under the Natur- Tec® brand. Finally, NTIC's Polymer Energy® joint venture manufactures and sells advance waste plastic to fuel conversion machines.

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CONTACT: Investor and Media Contacts:

         Matthew Wolsfeld, CFO

         (763) 225-6600

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