Dyadic International (DYAI) SC 13G DYADIC INTERNATIONAL / Bandera Partners ownership change

Exhibit 99.1

Joint Filing Agreement

The undersigned hereby agree that the Statement on Schedule 13G dated February 14, 2022 with respect to the Common Stock, $0.001 par value per share, of Dyadic International, Inc., and any amendments thereto executed by each and any of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.

Dated: February 14, 2022

BANDERA PARTNERS LLC
By:	/s/ Gregory Bylinsky
	Name:	Gregory Bylinsky
	Title:	Managing Director
By:	/s/ Gregory Bylinsky
	Name:	Gregory Bylinsky
By:	/s/ Jefferson Gramm
	Name:	Jefferson Gramm