Home Company Technology Partnership Investor Relations News Contact Us Comments? Questions? Contact us for more information. Northern Technologies International Corporation Corporate Headquarters 4201 Woodland Road P.O. Box 69 Circle Pines, MN 55014 USA Zerust®: Corrosion prevention and management products and services. Ship to: 22 Village Parkway Circle Pines, MN 55014 USA Natur-tec®: Advanced bio-based and biodegradable polymers. Toll-Free: 1 (800) 328-2433 Phone: +1 (763) 225-6600 Fax: +1 (763) 225-6645 Email: sales@zerust.com Zerust® Oil & Gas: Innovative Solutions for the Oil, Gas and Process Chemical Industries Branch Office 23205 Mercantile Road Beachwood, OH 44122 USA Phone: +1 (216) 450-5700 Fax: +1 (216) 450-5701 Home | Company | Technology | REACH | Partnership | Investor Relations | News | Contact Us | Careers | Terms of Use ©2007-2014 Northern Technologies International Corporation. All Rights Reserved.