YHN Acquisition I Ltd

false 0002020987 00-0000000 0000 0002020987 2026-06-17 2026-06-17 0002020987 YHNA:UnitsEachConsistingOfOneOrdinaryShareNoParValueAndOneRightEntitlingHolderToReceiveOnetenthOfOrdinaryShareMember 2026-06-17 2026-06-17 0002020987 YHNA:OrdinaryShareMember 2026-06-17 2026-06-17 0002020987 us-gaap:RightsMember 2026-06-17 2026-06-17 iso4217:USD xbrli:shares iso4217:USD xbrli:shares 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 June 17, 2026 Date of Report (Date of earliest event reported) YHN Acquisition I Limited (Exact Name of Registrant as Specified in its Charter) British Virgin Islands 001-42251 n/a (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 2/F, Hang Seng Building 200 Hennessy Road , Wanchai Hong Kong n/a 0000 (Address of Principal Executive Offices) (Zip Code) Registrant’s telephone number, including area code: +852 5499 8101 N/A (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: ☒ Written communications pursuant to Rule 425 under the Securities Act ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Units, each consisting of one Ordinary Share, no par value, and one Right entitling the holder to receive one-tenth of an Ordinary Share YHNAU The Nasdaq Stock Market LLC Ordinary Share YHNA The Nasdaq Stock Market LLC Rights YHNAR The Nasdaq Stock Market LLC Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). 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 8.01. Other Events. On June 17, 2026, YHN Acquisition I Limited (the “Company”) deposited $150,000 into the trust account established in connection with the Company’s initial public offering, in order to extend the amount of time it has available to complete a business combination from June 19, 2026 to September 19, 2026. SIGNATURES 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. YHN Acquisition I Limited Dated: June 22, 2026 By: /s/ Poon Man Ka, Christy Name: Poon Man Ka, Christy Title: Chief Executive Officer 2