SCHEDULE 13D 0002090080 XXXXXXXX LIVE Class A Ordinary Shares 09/09/2025 false 0001990251 G9545M115 Wellchange Holdings Co Ltd

Unit E, 11/F, Billion Plaza II 10 Cheung Yue Street Cheung Sha Wan, Kowloon K3 000000

Ni Saijun 852-544-27846 Room 611, 612, 6/F, Integration Centre 302-8 Hennessy Road Wan Chai K3 000000 0002090080 N Ni Saijun PF N K3 25000000.00 0.00 25000000.00 0.00 25000000.00 N 17.210 IN The percentage reported in Item 13 above is based on a total of 145,265,000 issued and outstanding Class A ordinary shares, par value US$0.00005 per share (the "Class A Ordinary Shares"), as of the date of this Schedule 13D, as represented by Wellchange Holdings Company Limited (the "Issuer"). Class A Ordinary Shares Wellchange Holdings Co Ltd Unit E, 11/F, Billion Plaza II 10 Cheung Yue Street Cheung Sha Wan, Kowloon K3 000000 Information given in response to each item shall be deemed incorporated by reference in all other items, as applicable. Ni Saijun, (the "Reporting Person") Shop 01 702, LG/F, Kwai Po Building, 102-116 Lei Muk Road, 135-147 Shek Yan Road, Kwai Chung, New Territoties, Hong Kong The Reporting Person's present principal occupation is Manger at Lord Yick Investment Limited, a investment company located at Room 611, 612, 6/F, Integration Centre, 302-8 Hennessy Road, Wan Chai, Hong Kong. The Reporting Persons have not, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) The Reporting Persons have not, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which the reporting persons were or are subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or a finding of any violation with respect to such laws. Hong Kong On September 9, 2025, the Reporting Person acquired 25,000,000 Class A Ordinary Shares of the Issuer at a purchase price of US$0.04 per share, for an aggregate purchase price of US$1,000,000, pursuant to a securities purchase agreement dated September 9, 2025 between the Issuer and certain investors, including the Reporting Person. The source of funds for the acquisition was personal funds (PF) of the Reporting Person. No part of the purchase price was represented by borrowed funds. The Reporting Persons acquired 25,000,000 Class A Ordinary Shares of the Issuer through a securities purchase agreement dated September 9, 2025. The Reporting Persons acquired for investment purposes and may, from time to time, seek to influence the Issuer's management and strategic direction. Except as set forth herein, the Reporting Persons do not have any present plans or proposals which relate to or would result in any of the transactions described in paragraphs (a) through (j) of this Item 4 25,000,000 Class A Ordinary Shares and 17.210% of the issued and outstanding Class A Ordinary Shares of the Issuer as of the date of this Schedule 13D. The Reporting Person sole voting and dispositive power over the 25,000,000 Class A Ordinary Shares of the Issuers Sole Voting Power: 25,000,000 Class A Ordinary Shares Shared Voting Power: 0 Sole Voting Dispositive Power: 25,000,000 Class A Ordinary Shares Shared Voting Dispositive Power: 0 Class A Ordinary Shares The Reporting Persons have not engaged in any transactions in the class of securities reported on that were effected during the past sixty days. Not Applicable Not Applicable Except as set forth herein, the Reporting Persons have no contracts, arrangements, understandings, or relationships with respect to the Issuer's securities requiring disclosure under this Item 6. Ni Saijun /s/ Ni Saijun 10/08/2025