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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 8, 2025

YUNHONG GREEN CTI LTD.

(Exact name of registrant as specified in charter)

Illinois |  | 000-23115 |  | 36-2848943
(State or other jurisdiction |  | (Commission |  | (IRS Employer
of incorporation) |  | File Number) |  | Identification No.)

22160 N. Pepper Road, Lake Barrington, IL 60010

(Address of principal executive offices) (Zip Code)

(847) 382-1000

(Registrant’s telephone number, including area code)

Not Applicable

(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 (see General Instruction A.2. below):

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Common Stock |  | YHGJ |  | The Nasdaq Stock Market LLC (The Nasdaq Capital Market)

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

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. ☐

Item 1.01 | Entry into a Material Definitive Agreement

On December 2, 2025, Yunhong Green CTI Ltd. (the “Company”) entered into an agreement with Yunhong Technology Industry (Hubei) Co., Ltd. and affiliated parties to unwind a portion of the asset purchase arrangement originally entered into on June 30, 2024.

Under the original arrangement, the Company issued shares as consideration, a portion of which related to anticipated operating support to be provided by the selling parties. As operations associated with that support did not commence, the parties agreed to cancel this portion of the arrangement.

As part of the unwind, 175,000 previously issued shares were returned to the Company and retired, and the related obligation was released. No cash consideration was exchanged.

Item 9.01 | Financial Statements and Exhibits.

Exhibit 1 |  | Stock Surrender Agreement
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document).

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 hereunto duly authorized.

Dated: December 8, 2025 | YUNHONG GREEN CTI LTD.
| By: | /s/ Jana M. Schwan
| Name: | Jana M. Schwan
| Title: | Chief Executive Officer