Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated November 10, 2010 in connection with their beneficial ownership of Key Technology, Inc. Columbia Management...Joint Filing Agreement • November 10th, 2010 • Ameriprise Financial Inc • Investment advice
The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated November 10, 2010 in connection with their beneficial ownership of Key Technology, Inc. Columbia Management Investment Advisers, LLC (formerly known as RiverSource Investments, LLC) authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make any necessary amendments thereto.
