BOCA RATON, FL (AMEX: DIL) in the United States District Court for the Southern District of Florida.

You may obtain a copy of the complaint from the Court, by contacting Saxena White P.A. through its website www.saxenawhite.com, by emailing jwhite@saxenawhite.com or gstone@saxenawhite.com or by calling (561) 394-3399.

The complaint seeks damages for violations of federal securities laws on behalf of all investors who acquired Dyadic securities between November 10, 2006 and April 23, 2007, inclusive (the "Class Period").

The complaint alleges operational and financial improprieties perpetrated by the Company and its Asian subsidiaries approved by the Defendants, which culminated in an internal investigation and subsequent firing of the Company's Chairman and Chief Executive Officer Mark A. Emalfarb. As a result of the improprieties in the Company's Asian subsidiaries and the subsequent internal investigation, the Company has abandoned its Asian operations. The Company's stock was artificially inflated as a result of the material omissions and misstatements contained within the Company's publicly filed financial statements and reports. Its stock is currently suspended for trading on the American Stock Exchange and is at risk of being delisted, resulting in total loss of equity for owners of Dyadic's securities.

If you acquired Dyadic securities from November 10, 2006 through April 23, 2007, you may wish to contact Joe White or Greg Stone at Saxena White P.A. to discuss your rights and interests:

If you wish to apply to be the lead plaintiff in this action, a motion on your behalf must be filed with the court no later than December 11, 2007. You may contact Saxena White P.A. to discuss your rights regarding the appointment of lead plaintiff and your interest in the class action. Please note that you may also retain counsel of your choice and need not take any action at this time to be a class member.

Saxena White P.A. has offices in Boca Raton, San Francisco, and Boston, and specializes in prosecuting securities fraud and complex class actions on behalf of institutions and individuals. Currently serving as lead counsel in numerous securities fraud class actions nationwide, the firm has recovered millions of dollars on behalf of injured investors.

Contact: Joseph White, Esq. Email Contact Greg Stone Email Contact Saxena White P.A. 2424 North Federal Highway Suite 257 Boca Raton, FL 33431 Tel: (561) 394-3399 Fax: (561) 394-3382 www.saxenawhite.com