Item Departure On July 8, 2025, the Board of Directors of Yunhong Green CTI Ltd. (the “ Company”) appointed Darlene Chiu Bryant as an Independent Director for the vacant term to conclude upon the election of directors during the 2025 Annual Meeting of Shareholders. The Company previously announced the retirement of Douglas Bosley from the Board of Directors.

Item Other On July 4, 2025, the Company entered into a Consulting Agreement with an independent, third-party firm. The purpose of this agreement is to assess and develop strategic alternatives for the Company, including but not limited to: new revenue sources, cost reductions, merger and acquisition options and other means of potential shareholder value creation. On July 8, 2025, the Board of Directors of the Company appointed Sree Kommana, Corporate Controller of the Company, as Principal Financial Officer (PFO) for the purpose of financial statement filings and related disclosures. 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 July 9, 2025 GREEN CTI LTD. ─────────────────────────────────────────────────────────── By: /s/ Name: Jana Title: Chief