Item Departure

Item Other On April 22, 2026, the Board of Directors of Yunhong Green CTI Ltd. (the “ Company”) appointed Fred H. F. Chak, an existing member of the Board, to serve as Chairman of the Board, effective April 27, 2026. Mr. Chak succeeds Gerald D. Roberts Jr., who has served as interim Chairman of the Board since February 17, 2026. Mr. Roberts will continue to serve as a director of the Company. 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: YUNHONG April 27, 2026 GREEN CTI LTD. ───────────────────────────────────────────────────────────── By: /s/ Name: Jana Title: Chief