Protokraft Testimonial

Mr. David G. Brashears
Principal | Creative Director
Pteryga Design, Inc.
P.O. Box 1531
Kingsport, TN 37662

Dear Mr. Brashears:

On behalf of Protokraft, I am pleased to provide this testimonial letter to Pteryga Design for your
on-going service as our website and graphics designer.

The Protokraft website launched more than three years ago. It offers general information about
our company, as well as product and market information. We develop products for Airbus,
Boeing, Honeywell, Raytheon, Lockheed-Martin and other aerospace equipment manufacturers.
We depend on our website to promote our company to this global customer base. In order to
support these customers, we rely on a large number of regional business partners that provide
local support to our globally distributed customers. Our website establishes the critical link
between our remote customers and their local service providers.

Pteryga Design provided both website and graphics design from the beginning of our global
market development activities. In that time, we have completed one major upgrade to the site, as
well as multiple updates. We appreciate your prompt, professional service. We value your
feedback and guidance on the design of our site based on your knowledge and experience.

Protokraft looks forward to continuing our successful and productive relationship with Pteryga
Design.

Sincerely,

Robert M. Scharf
President
Protokraft, LLC