Item Departure Item Other On November 25, 2025, the Board of Directors of Yunhong Green CTI Ltd. (the “ Company”) appointed Jeffrey Leader as an Independent Director. 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 December 1, 2025 GREEN CTI LTD. ─────────────────────────────────────────────────────────────── By: /s/ Name: Jana Title: Chief