Contact Information:

Corporate Office
Northern Technologies International Corporation
P.O. Box 69
4201 Woodland Road
Circle Pines, MN 55014
Phone: (763)225-6600

Beachwood, OH Branch
Northern Technologies International Corporation
23205 Mercantile Road
Beachwood, OH 44122
Phone: (216)450-5716
Fax: (216)450-5701

Houston, TX Branch
17 S. Briar Hollow
Suite 200
Houston, TX 77027
Phone: (281) 853-5405

Email: info@zerust-oilgas.com