JOINT FILING AGREEMENTJoint Filing Agreement • December 2nd, 2011 • Northern Technologies International Corp • Coating, engraving & allied services
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required on Schedule 13D need be filed with respect to ownership by each of the undersigned of shares of common stock of Northern Technologies International Corporation.
