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 October 2025

Commission File Number: 001-42568

EPSIUM ENTERPRISE LIMITED

c/o Companhia de Comércio Luz Limitada

Alameda Dr. Carlos D’assumpcao

Edf China Civil Plaza 235-243, 14 Andar P

Macau, SAR China

+853-2857-5252

(Address of principal executive office)

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 ☐

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

Incorporation of Media Icon Limited, a BVI Subsidiary

On October 24, 2025, pursuant to a resolution by the board of directors of EPSIUM ENTERPRISE LIMITED (the “Company”), the Company established a wholly-owned subsidiary in the British Virgin Islands, Media Icon Limited (the “BVI Subsidiary”).

EXHIBIT INDEX

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.