Failure to Satisfy Listing Rule (Form 8-K)

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

(a)

On September 25, 2026, Dyadic International, Inc. (the "Company") received a deficiency notice (the "Notice") from the Nasdaq Listing Qualifications staff (the "Staff") of The Nasdaq Stock Market LLC ("Nasdaq") notifying the Company that for the last 30 consecutive business days the Company's securities have not maintained the minimum bid price of at least $1 per share required by the continued listing requirements of Nasdaq Listing Rule 5550(a)(2). The Notice has no immediate effect on the listing of the Company's common stock on the Nasdaq Capital Market. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has 180 calendar days, or until March 24, 2027 (the "Compliance Date"), to regain compliance with the minimum bid price requirement by having the Company's bid price close at $1 per share or more for a minimum of 10 consecutive business days before the Compliance Date (subject to the Staff's discretion to extend this period under Nasdaq Listing Rule 5810(c)(3)(H)). If the Company does not regain compliance by the Compliance Date, the Company may be eligible for an additional 180-day period to regain compliance, provided that on the Compliance Date the Company meets the applicable market value of publicly held shares requirement for continued listing and all other applicable standards for initial listing on the Nasdaq Capital Market (except the bid price requirement) based on the Company's most recent public filings and market information, and provides Nasdaq with written notice of its intent to cure this deficiency (by effecting a reverse stock split, if necessary). However, if it appears to the Staff that the Company will not be able to cure the deficiency, or if the Company is otherwise not eligible for the second compliance period, and the Company does not regain compliance by the Compliance Date, the Staff will provide written notification that the Company's common stock is subject to delisting.

Additionally, on September 25, 2026, the Company received a separate Notice from the Nasdaq Staff notifying the Company that for the last 30 consecutive business days, the Company's common stock has not maintained the minimum Market Value of Listed Securities ("MVLS") of $35 million required by the continued listing requirements of Nasdaq Listing Rule 5550(b)(2). The Notice has no immediate effect on the listing of the Company's common stock on the Nasdaq Capital Market. In accordance with Nasdaq Listing Rule 5810(c)(3)(C), the Company has 180 calendar days, or until the Compliance Date of March 24, 2027, to regain compliance with the minimum MVLS requirement by having the Company's MVLS close at $35 million or more for a minimum of 10 consecutive business days before the Compliance Date (subject to the Staff's discretion to extend this period under Nasdaq Listing Rule 5810(c)(3)(H)). If the Company does not regain compliance by the Compliance Date, the Staff will provide written notification that the Company's common stock is subject to delisting.

With respect to each deficiency, if the Staff notifies the Company that its common stock is subject to delisting, the Company may appeal the delisting determination to a hearings panel pursuant to the procedures set forth in the applicable Nasdaq listing rules. However, there can be no assurance that, if the Company receives a delisting notice and appeals the delisting determination by Nasdaq to the panel, such appeal would be successful.

The Company intends to actively monitor the bid price and MVLS of its common stock between now and the applicable Compliance Date and, as appropriate, plans to evaluate available options to resolve the applicable deficiencies and regain compliance with the minimum bid price and MVLS requirements.