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 December 2025

Commission File Number: 001-42462

Mint Incorporation Limited

17/F, Wing Kwok Centre, No.182 Woosung Street

Jordan, Kowloon, Hong Kong

(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 ☐

On December 23, 2025, Mint Incorporation Limited, a company incorporated in the British Virgin Islands (the “Company”), established a new subsidiary, Spark Interiors Limited, a limited company incorporated in Hong Kong, through its wholly owned intermediate holding company, CKL Holding Limited. Spark Interiors Limited will engage in the provision of interior design and fit-out services. The establishment of Spark Interiors Limited is intended to support the development of a new brand under the Company’s existing business, with a focus on residential customers. The registered office of Spark Interiors Limited is located at 17/F, Wing Kwok Centre, No.182 Woosung Street, Jordan, Kowloon, Hong Kong.

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.