Item Departure On April 25, 2025, the Board of Directors of Yunhong Green CTI Ltd. (the “ Company”) accepted the resignation of Director Frank Cesario, and appointed its Chief Executive Officer Jana M. Schwan to the role of 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 April 30, 2025 GREEN CTI LTD. ───────────────────────────────────────────────────────────── By: /s/ Name: Jana Title: Chief