EX-17.1 3 exhibit17_1.htm DYADIC INTERNATIONAL, INC. EXHIBIT 17.1 RESIGNATION LETTER

Dyadic International, Inc. Exhibit 17.1 Resignation Letter

Exhibit 17.1

Robert B. Shapiro

155 West Burton, #2

Chicago, Illinois 60610

July 2, 2007

Mr. Wayne Moor

Chief Executive Officer

Dyadic International, Inc.

140 Intracoastal Pointe Drive, Suite 404

Jupiter, Florida 33477

Dear Wayne:

As I've discussed with Bob Schwimmer (and I understand he has discussed with the Board), I hereby resign from the Board of Dyadic International for reasons of health, effective immediately.

My best wishes to you all.

Sincerely,

/s/ Robert B. Shapiro

Robert B. Shapiro