SEC Form 6-K filed by Skyline Builders Group Holding Limited

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 April 2026

Commission File Number: 001-42461

SKYLINE BUILDERS GROUP HOLDING LIMITED

(Registrant’s Name)

Office A, 15/F, Tower A, Capital Tower,

No. 38 Wai Yip Street, Kowloon Bay, Hong Kong

(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 ☐

Press Release

On April 30, 2026, Skyline Builders Group Holding Limited and Cove Kaz Capital Group LLC issued a joint press release announcing the execution of the Transaction Agreement to effect a business combination, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The press release shall not be deemed “filed” for any purpose, including for the purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section. The information, including Exhibit 99.1, shall not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act regardless of any general incorporation language in the filing.

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.

3