Form 8-K/A Rising Dragon Acquisitio For: Dec 12

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December 29, 2025 5:01 PM EST

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K/A

(Amendment No. 1)

Current Report

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

December 12, 2025

Date of Report (Date of earliest event reported)

Rising Dragon Acquisition Corp.

(Exact Name of Registrant as Specified in its Charter)

Cayman Islands		001-42368		n/a
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

No. 604, Yixing Road, Wanbolin District, Taiyuan City, Shanxi Province, People’s Republic of China		030024
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: +86 18817777987

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one Ordinary Share, par value $0.0001 per share, and one Right entitling the holder to receive one-tenth of an Ordinary Share	RDACU	The Nasdaq Stock Market LLC
Ordinary Shares	RDAC	The Nasdaq Stock Market LLC
Rights	RDACR	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Explanatory Note

This Amendment No. 1 (the “Amended 8-K”) to the Company’s Current Report on Form 8-K (the “Original 8-K”), filed on December 18, 2025, is being filed solely to revise the amount of the Amended Monthly Extension Fee under Item 8.01 of the Original 8-K. The revision aligns the calculation of the Amended Monthly Extension Fee with the methodology pursuant to the Trust Agreement Amendment, as agreed upon by all relevant parties. The Amended 8-K speaks as of the same date as the Original 8-K. Except as set forth herein, no other changes have been made to the Original 8-K. Accordingly, this Amended 8-K should be read in conjunction with the Original 8-K.

Item 8.01. Other Events.

In connection with the shareholders’ vote at the Extension Meeting, 1,548,345 ordinary shares were tendered for redemption. An aggregate of 5,668,070 ordinary shares were tendered for redemption in connection with the extraordinary general meeting held on November 20, 2025, to approve the business combination and the Extension Meeting. The Amended Monthly Extension Fee will be $100,000 for each one-month extension.

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 hereunto duly authorized.