UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of, June 2026

Commission File Number 001-40848

GUARDFORCE AI CO., LIMITED

(Translation of registrant’s name into English)

10 Anson Road, #28-01 International Plaza

Singapore 079903

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

As previously disclosed, on December 12, 2025, Guardforce AI Co., Limited (the “Company”) received a written notification from the Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that it was not in compliance with the minimum bid price requirement set forth in Nasdaq rules for continued listing on the Nasdaq, and the Company was provided 180 calendar days, or until June 10, 2026, to regain compliance.

Nasdaq Listing Rule 5550(a)(2) requires listed securities to maintain a minimum bid price of US$1.00 per share, and Listing Rule 5810(c)(3)(A) provides that a failure to meet the minimum bid price requirement exists if the deficiency continues for a period of 30 consecutive business days. Based on the closing bid price of the Company’s ordinary shares for any consecutive period of 30 business days from October 30 through December 11, 2022, the Company does not meet the minimum bid price requirement.

The Company’s ordinary shares have not regained compliance with the minimum $1 bid price per share requirement. However, on June 11, 2026, the Company received a written notification (the “Notification Letter”) from Nasdaq, notifying the Company that it is eligible for an additional 180 calendar day period, or until December 7, 2026, to regain compliance.

The Notification Letter does not impact the Company’s listing on the Nasdaq Capital Market at this time. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been provided an additional 180 calendar days, or until December 7, 2026, to regain compliance with Nasdaq Listing Rule 5550(a)(2). To regain compliance, the Company’s ordinary shares must have a closing bid price of at least US$1.00 for a minimum of 10 consecutive business days. In the event the Company does not regain compliance by December 7, 2026, the Company may face delisting.

The Company’s business operations are not affected by the receipt of the Notification Letter. The Company intends to monitor the closing bid price of its ordinary shares and may, if appropriate, consider implementing available options, including, but not limited to, implementing a reverse share split of its outstanding ordinary shares, to regain compliance with the minimum bid price requirement under the Nasdaq Listing Rules.

This report on Form 6-K is incorporated by reference into (i) the prospectus contained in the Company’s registration statement on Form F-3 (SEC File No. 333-261881) declared effective by the Securities and Exchange Commission (the “Commission”) on January 5, 2022; (ii) the prospectus dated February 9, 2022 contained in the Company’s registration statement on Form F-3 (SEC File No. 333-262441) declared effective by the Commission on February 9, 2022; (iii) the prospectus contained in the Company’s Post-Effective Amendment No. 1 to Form F-1 on Form F-3 (SEC File No. 333-258054) declared effective by the Commission on June 14, 2022; and (iv) the prospectus contained in the Company’s registration statement on Form F-3 (SEC File No. 333-284261) declared effective by the Securities and Exchange Commission (the “Commission”) on January 24, 2025.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.