Dyadic International, Inc.

140 Intracoastal Pointe Drive

Suite 404

Jupiter, FL 33477 

February 12, 2019 

VIA EDGAR

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549-4628

Attention: Amanda Ravitz

Assistant Director

Division of Corporate Finance

Office of Manufacturing and Construction

Re: Dyadic International, Inc.

Registration Statement on Form 10

File No. 000-55264 (the “Registration Statement”)

Dear Sirs:

Pursuant to Section 12(g)(1) promulgated under the Securities Exchange Act of 1934, as amended, Dyadic International, Inc. hereby respectfully requests acceleration of the effective date of the Registration Statement so that it may become effective at 4:00 p.m., Eastern Time, on February 12, 2019, or as soon thereafter as practicable.

Should any member of the staff of the Commission have any questions or comments with respect to this request, please contact our counsel, Cahill Gordon & Reindel LLP, attention: Kimberly C. Petillo-Decossard at (212) 701-3265.

Very truly yours,
DYADIC INTERNATIONAL, INC.
By:	/s/ Ping W. Rawson
	Ping W. Rawson
	Chief Accounting Officer

cc: Edward M. Kelly

Asia Timmons-Pierce