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 June 2025

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 ☐

~~Appointment~~Change ofin ~~Directors~~Independent orRegistered ~~Certain~~Public ~~Officers.~~Accounting Firm

OnTermination ~~June 2, 2025, the Board~~ of ~~Directors~~ ~~of Semilux International Ltd. (~~the “Company”)’s ~~appointed Ms. Shu-Chuan Chien as a member of the Board~~Independent ofRegistered ~~Directors,~~Public ~~effective~~Accounting ~~immediately. Ms. Chien fills the vacancy created by the resignation of Mr. Kwan Sun, which was previously disclosed by the Company in its Form 6-K filed on May 15, 2025.~~Firm

InOn ~~addition~~June to9, ~~her~~2025, ~~appointment~~the Audit toCommittee (the “Audit Committee”) of the Board, Msof Directors of Semilux International Ltd., ~~Chien~~a ~~has~~Cayman ~~also~~Islands exempted ~~been~~company ~~appointed~~with tolimited ~~serve~~liability as(the a“Company”) ~~member~~approved the dismissal of Marcum Asia CPAs LLP, located at Seven Penn Plaza, Suite 830, New York, NY 10001 (“Marcum Asia”), as the Company’s ~~Audit~~independent ~~Committee~~registered public accounting firm.

~~Ms.~~Following discussions between ~~Chien~~the ~~serves~~Company asand Marcum Asia, the ~~General~~Audit ~~Manager~~Committee ofdetermined ~~Xuyao~~that ~~International~~a ~~Industrial~~change ~~Co.,~~in ~~Ltd.,~~auditors ~~where~~would ~~she~~be isin ~~responsible~~the ~~for~~best interests of the ~~company’s~~Company ~~overall~~in ~~strategic~~order ~~direction,~~to ~~operations,~~ensure ~~and~~the ~~business~~timely ~~development,~~completion ~~including oversight~~of the audit of the Company’s financial ~~performance~~statements and ~~internal~~the ~~controls.~~filing ~~Prior~~of toits ~~joining~~Annual ~~Xuyao,~~Report ~~Ms.~~on Form ~~Chien~~20-F ~~served~~for asthe ~~Procurement~~fiscal ~~Section~~year ~~Manager~~ended atDecember ~~Hua Hao Electronics Co.~~31, ~~Ltd~~2024., ~~where~~During ~~she~~the ~~led~~period ~~strategic~~of ~~sourcing~~Marcum ~~initiatives~~Asia’s engagement and ~~managed~~through ~~supplier~~June ~~relationships~~9, ~~across~~2025, ~~global~~there were ~~markets.~~no ~~Ms. Chien~~disagreements ~~has~~between ~~over~~the 20Company ~~years~~and Marcum Asia on any matter of ~~experience~~accounting inprinciples ~~corporate~~or ~~management~~practices, ~~procurement~~financial statement disclosure, or ~~and~~auditing ~~international~~scope ~~business~~or ~~operations~~procedures, ~~with~~which adisagreements, ~~focus~~if onnot ~~supply chain~~resolved ~~optimization,~~to ~~cost~~the ~~control,~~satisfaction ~~risk~~of ~~assessment~~Marcum Asia, ~~and~~would ~~cross-border~~have ~~business~~caused ~~development.~~Marcum ~~She~~Asia to ~~holds~~make areference ~~degree~~to inthe ~~International~~subject ~~Trade~~matter ~~from Aletheia~~of ~~University~~the disagreements in ~~Taiwan~~connection with its reports.

The Company ~~also~~provided ~~entered~~Marcum Asia ~~into~~with a copy of the disclosures in this Report and requested that Marcum Asia furnish a letter addressed to the Securities and Exchange anCommission ~~indemnity~~stating ~~agreement~~whether it agrees with ~~Ms.~~the ~~Chien~~above instatements, or if not, stating the ~~same~~respects ~~form~~in which it does not agree. A copy of such letter is filed as ~~its~~Exhibit ~~standard~~16.1 ~~form~~to this Report of ~~indemnification~~Foreign ~~agreement~~Private ~~with~~Issuer ~~its~~on ~~other~~Form ~~directors~~6-K.

~~The~~Appointment ~~Company confirms that there are no related party transactions between Ms. Chien and the Company that would require disclosure under Item 7.B~~ of ~~Form~~New ~~20-F.~~Independent ~~Any~~Registered ~~compensation~~Public ~~arrangements~~Accounting ~~in connection with her appointment will be disclosed, if applicable, in a subsequent filing.~~Firm

~~Press~~On ~~Release~~June ~~Announcing~~9, ~~Receipt~~2025, ofthe Audit Committee approved the ~~Nasdaq~~engagement of Enrome LLP, located at 143 Cecil Street, #19-03/04 GB Building, Singapore 069542 (“Enrome”), ~~Delinquency~~as ~~Notice~~the Company’s new independent registered public accounting firm, effective immediately.

OnEnrome LLP previously served as the Company’s independent registered public accounting firm from May 2717, 2023, to April 14, 2025, ~~the~~and ~~Company~~was dismissed on that April ~~received~~14, a2025, ~~delinquency~~as ~~notice~~disclosed (in the ~~“Notice”)~~Company’s ~~from~~Form ~~the~~6-K ~~Listing~~filed ~~Qualifications~~on ~~Department~~April of15, ~~The~~2025. ~~Nasdaq~~During ~~Stock~~the Company’s prior engagement with Enrome ~~Market~~LLP ~~LLC~~and ~~(“Nasdaq”),~~the ~~indicating~~subsequent ~~that~~interim period through the date of this current engagement, the Company isdid not inconsult ~~compliance~~ with ~~Nasdaq~~Enrome ~~Listing~~LLP ~~Rule 5250~~regarding (ci) the application of accounting principles to any specified transaction, (1ii) ~~due~~ tothe ~~its~~type ~~failure~~of toaudit ~~timely~~opinion ~~file~~that ~~its~~might ~~Annual~~be ~~Report~~rendered on ~~Form~~the Company’s ~~20-F~~financial ~~for~~statements, or (iii) any matter that was the ~~fiscal~~subject ~~year~~of ~~ended~~a ~~December~~disagreement ~~31,~~or ~~2024,~~a ~~with~~reportable ~~the~~event ~~U.S.~~as ~~Securities~~defined in Item 16F(a)(1)(iv) and ~~Exchange~~(v) ~~Commission~~of Form 20-F.

On June 2, 2025, the Company issued a press release regarding the receipt of the Notice. A copy of the press release is furnished as Exhibit 99.1 to this Form 6-K.

Exhibit Index

Exhibit No.		Description
99.1		Press Release, dated June 2, 2025.

Financial Statements and Exhibits

Exhibits.

Number
16.1		Letter of Marcum Asia CPAs LLP dated June 12, 2025, regarding change in independent registered public accounting firm.

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.

	Semilux International Ltd.
Date: June 5, 2025	By:	/s/ Yung-Peng Chang
Date: June 12, 2025	By:	/s/ Yung-Peng Chang
	Name:	Yung-Peng Chang
	Title:	Chief Executive Officer

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