The principal place of business for the Reporting Person is 15N, Block B, Zhongzhou Holding Financial Center, Intersection of Houhai Avenue and Haide 1st Road, Nanshan District, Shenzhen, Guangdong, China.

The principal occupation of the Reporting Person is the chief executive officer and chairman of the board of directors of the Issuer, whose principal business is the sales of AI data collection and analysis servers, and sales of intelligent robot. The address of the Issuer is provided in Item 1(c).

During the last five years, the Reporting Person has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

During the last five years, the Reporting Person has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and, as a result of such proceeding, 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 finding any violation with respect to such laws.

Ruilin Xu is a citizen of P.R. China.

The information set forth in Items 4 and 5 of this Schedule 13D are hereby incorporated by reference into this Item 3.

On July 27, 2026, the Issuer issued 20,991 Class B Ordinary Shares to Xu, pursuant to the employment agreement, between the Issuer and Xu, dated August 22, 2022 (the "Employment Agreement"). On May 8, 2026, the Issuer issued 81,081 Class B Ordinary Shares to Xu, pursuant to the Employment Agreement. On November 27, 2025, the Issuer issued 51,282 Class B Ordinary Shares to Xu, pursuant to the Employment Agreement. On June 17, 2025, the Issuer issued 1,519 (on the post-1:25-reverse split basis) Class B Ordinary Shares to Xu, pursuant to the Employment Agreement. Xu held, indirectly through Xu Ruilin Capital, 768 Class A Ordinary Shares and 6,060 Class B Ordinary Shares as of September 8, 2025. Xu serves as chairman of the board of directors of the Issuer. In such capacities, he may engage in communications with the Issuer's Board of Directors, members of management, other shareholders, financial and legal advisers, and other parties regarding the Issuer, including but not limited to the Issuer's operations, governance and control. In addition, in these capacities, he may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. Except as set forth herein, he does not have any plans or proposals which relate to, or could result in, any of the matters referred to in paragraphs (a) through (j), inclusive, of the instructions to Item 4 of Schedule 13D. He may, at any time and from time to time, review or reconsider his position and/or change his purpose and/or formulate plans or proposals with respect thereto.

Ruilin Xu indirectly owns 768 Class A Ordinary Shares and 6,060 Class B Ordinary Shares through Xu Ruilin Capital, and directly owns 154,873 Class B Ordinary Shares. Each Class B Ordinary Share is entitled to two hundred (200) votes on any matter on which action of the shareholders of the Issuer is sought and may be converted to two hundred (200) Class A Ordinary Shares at the option of the holder. Ruilin Xu beneficially owns 90.71% of total voting power of the Issuer as of October 8, 2026. The percentage of beneficial ownership of the Reporting Person, as reported in this Schedule 13D, was calculated by dividing (i) the total number of Class A Ordinary Shares and Class B Ordinary Shares beneficially owned by Reporting Person as set forth in this Schedule 13D by (ii) the total number of Class A Ordinary Shares and Class B Ordinary Shares outstanding as of October 8, 2026.

Ruilin Xu has shared voting and shared dispositive power over 768 Class A Ordinary Shares and 6,060 Class B Ordinary Shares he holds through Xu Ruilin Capital. He has sole voting and dispositive power over 154,873 Class B Ordinary Shares.

To the best knowledge of the Reporting Person, except as disclosed in this Schedule 13D, the Reporting Person has not effectuated any transactions relating to the ordinary shares during the past 60 days.

To the knowledge of the Reporting Person, no person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of the ordinary shares.

N.A.

The information set forth in Item 4 of this Schedule 13D is hereby incorporated by reference into this Item 6, as applicable. Other than the foregoing agreements and arrangements, there are no contracts, arrangements, understandings or relationships between the person named in Item 2 hereof and the Issuer with respect to any securities of the Issuer.

Exhibit 10.1 Employment Agreement between Nexpu Ltd. (formerly known as Top KingWin Ltd) and Ruilin Xu, dated August 22, 2022 (incorporated by reference to Exhibit 10.1 of the Issuer's Registration Statement on Form F-1, as amended, filed with the Securities and Exchange Commission on January 18, 2023).