SEC Form 6-K filed by Semilux International Ltd.

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2026

Commission File Number: 001-41965

Semilux International Ltd.

(Registrant’s Name)

4F., No. 32, Keya Rd., Daya Dist.

Central Taiwan Science Park

Taichung City 42881

Taiwan

(Address of Principal Executive Offices)

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

Form 20-F ☒        Form 40-F ☐

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard.

On December 31, 2025, Semilux International Ltd. (the “Company”) received a letter (the “MVLS Deficiency Notice”) from the listing qualifications department staff (the “Staff”) of The Nasdaq Stock Market (“Nasdaq”) notifying the Company that that from November 13, 2025 to December 30, 2025, the Company’s Market Value of Listed Securities (“MVLS”) was below the minimum of $35 million required for continued listing on The Nasdaq Global Market pursuant to Nasdaq Listing Rule 5450(b)(2)(A) (the “MVLS Requirement”).

The MVLS Deficiency Notice has no immediate effect on the listing of the Company’s ordinary shares, and the Company’s common stock continues to trade on the Nasdaq Global Market under the symbol “SELX.”

In accordance with Nasdaq Listing Rule 5810(c)(3)(C), the Company has 180 calendar days from the date of the MVLS Deficiency Notice, or through June 29, 2026 (the “Compliance Date”), to regain compliance with respect to the MVLS Requirement. The MVLS Deficiency Notice states that if the Company’s MVLS closed at $35 million or more for a minimum of ten consecutive business days during the compliance period ending on the Compliance Date, the Staff will provide written confirmation of compliance. 

If the Company does not regain compliance by the Compliance Date, Nasdaq will provide written notice to the Company that its securities are subject to delisting. At that time, the Company may appeal any such delisting determination. However, there can be no assurance that, if the Company receives a delisting notice from the Staff and appeals the delisting determination, such appeal would be successful.

The Company intends to actively monitor the Company’s MVLS between now and the Compliance Date and will take all reasonable measures available to the Company to regain compliance with the MVLS Requirement. While the Company is exercising diligent efforts to maintain the listing of its ordinary shares on Nasdaq, there can be no assurance that the Company will be able to regain or maintain compliance with the applicable continued listing standards set forth in the Nasdaq Listing Rules.

SIGNATURE

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.