Form 20-F ☐REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Or ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2026 Or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Or ☐SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF Date of event requiring this shell company report________________________For the transition period from__________ to ___________Commission File No. 333-292310 GreenVector Holdings Limited(Exact name of Registrant as specified in its charter) Not Applicable(Translation of Registrant’s name into English) Cayman Islands(Jurisdiction of incorporation or organization) Unit 401, 4/F., Tower 1, Harbour Centre1 Hok Cheung St., Hung Hom, Kowloon, Hong KongPhone: (852) 2669-8222(Address of principal executive offices) Dixon Chun Wan ChanUnit 401, 4/F., Tower 1, Harbour Centre1 Hok Cheung St., Hung Hom, Kowloon, Hong KongPhone: (852) 2669-8222info@green-vector.com](Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section 12(b)of the Act: Securities registered or to be registered pursuant to Section 12(g) of the Act:None Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: Class A Ordinary Shares, par value $0.001 per share Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report (March31, 2026): 11,000,000 ordinary shares are outstanding. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☐No☒ If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of theSecurities Exchange Act of 1934. Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 duringthe preceding 12 months (or for such a shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for thepast 90 days. Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. Seedefinition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If an emerging growth company that prepares its consolidated financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant haselected not to use the extended transition period for complying with any new or revised financial accounting standards † provided pursuant to Section 13(a) of theExchange Act☐ †The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting StandardsCodification after April 5, 2012. Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal controlover financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its auditreport.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the consolidated financial statements of the registrant includedin the filing reflect the correction of an error to previously issued consolidated financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive based compensation received byany of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark which basis of accounting the registrant has used to prepare the consolidated financial statements included in this filing: International Financial Reporting Standards as issuedby the International Accounting Standards Board☐ If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.Item 17☐Item 18☐ If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☒ TABLE OF CONTENTS PART I2ITEM 1. Identity of Directors, Senior Management and Advisers.2ITEM 2. Offer Statistics and Expected Timetable2ITEM 3. Key Information2ITEM 4. Information on the Company35ITEM 4A. Unresolved Staff Comments35ITEM 5. Operating and Financial Review and Prospects35ITEM 6. Directors, Senior Management and Employees39IT