Press Releases

Wednesday, April 20, 2011 at 2:00 p.m. ET, Capital Hilton, Washington, D.C.

JUPITER, Fla., April 11, 2011 – Dyadic International, Inc. (“Dyadic”) (OTC Pink: DYAI), a global biotechnology company focused on the discovery, development, manufacture and sale of enzyme and protein products for the bioenergy, industrial enzyme and biopharmaceutical industries, today announced that its President and Chief Executive Officer, Mark Emalfarb, will present at the Advanced Biofuels Leadership Conference taking place from April 19-21, 2011 at the Capital Hilton in Washington, D.C., on Wednesday, April 20, 2011 at 2:00 p.m. ET. Following the live presentation, a slide presentation will be available on Dyadic’s website at www.dyadic.com.

The Advanced Biofuels Leadership Conference brings together the leaders guiding the development of advanced biofuels as well as emerging feedstocks. The conference focuses on the key drivers for biofuels commercialization including processing technologies, finance, policy, and feedstocks from those in a unique position to make decisions.

ABOUT DYADIC

Dyadic International, Inc. is a global biotechnology company that uses its patented and proprietary technologies to conduct research, development and commercial activities for the discovery, development, manufacture and sale of enzyme and protein products for the bioenergy, industrial enzyme and biopharmaceutical industries.

CAUTIONARY STATEMENT FOR FORWARD-LOOKING STATEMENTS

Certain statements contained in this press release are forward- looking statements. These forward-looking statements involve risks and uncertainties that could cause Dyadic’s actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Except as required by law, Dyadic expressly disclaims any intent or obligation to update any forward-looking statements.

CONTACT:

Dyadic International, Inc.

Adam J. Morgan

Vice President General Counsel & Business Development

Phone: 561-743-8333

Email: amorgan@dyadic.com