SCHEDULE 13D 0002098653 XXXXXXXX LIVE Class A ordinary shares, with no par value 09/03/2025 false 0002047273 G1739L102 BUUU Group Ltd

Flat B, 16/F, Ford Glory Plaza 37 Wing Hong Street Cheung Sha Wan K3 000000

c/o Wai Kwong POON 852 3705 5244 Flat B, 16/F, Ford Glory Plaza 37 Wing Hong Street Cheung Sha Wan K3 000000 0002098653 N BUBI Services Ltd WC N D8 0.00 6040000.00 0.00 6040000.00 6040000.00 N 51.73 CO (1) BUBI Services Limited ("BUBI") is an investment holding company incorporated in the British Virgin Islands. It is owned 40% by Ms. Nana Chan, 40% by Mr. Wai Kwong Poon, and 20% by Perfect Wood Limited, a British Virgin Islands entity owned equally by Mr. Chao Yuan and Ms. Li Pan. The board of directors of BUBI consists solely of Ms. Chan and Mr. Poon, and actions of BUBI require the approval of both directors. BUBI beneficially owns 6,040,000 Class A ordinary shares with no par value (the "Class A Ordinary Shares") of BUUU Group Limited (the "Issuer"). (2) Based on 11,675,000 Class A Ordinary Shares of the Issuer issued and outstanding as of the date of this Schedule 13D, as represented by the Issuer. 0002097416 N Nana CHAN PF N K3 0.00 6040000.00 0.00 6040000.00 6040000.00 N 51.73 IN (1) Ms. Chan is a 40% shareholder and one of the two directors of BUBI, an investment holding company incorporated in the British Virgin Islands. The other director of BUBI is Mr. Wai Kwong Poon, and the actions of BUBI require the approval of both directors. BUBI beneficially owns an aggregate of 6,040,000 Class A Ordinary Shares. Because actions of BUBI require the joint approval of both directors, Ms. Chan may be deemed to share voting and dispositive power with respect to all securities held by BUBI. (2) The foregoing ownership percentage is based on 11,675,000 Class A Ordinary Shares of the Issuer issued and outstanding as of the date of this Schedule 13D, as represented by the Issuer. 0002099403 N Wai Kwong POON PF N K3 0.00 6040000.00 0.00 6040000.00 6040000.00 N 51.73 IN (1) Mr. Poon is a 40% shareholder and one of the two directors of BUBI, an investment holding company incorporated in the British Virgin Islands. The other director of BUBI is Ms. Nana Chan, and actions of BUBI require the approval of both directors. BUBI beneficially owns an aggregate of 6,040,000 Class A Ordinary Shares of the Issuer. Because actions of BUBI require the joint approval of both directors, Mr. Poon may be deemed to share voting and dispositive power with respect to all securities held by BUBI. (2) The foregoing ownership percentage is based on 11,675,000 Class A Ordinary Shares as of the date of this Schedule 13D, as represented by the Issuer. Class A ordinary shares, with no par value BUUU Group Ltd Flat B, 16/F, Ford Glory Plaza 37 Wing Hong Street Cheung Sha Wan K3 000000 This Schedule 13D is being filed jointly by the following persons (each, a "Reporting Person" and collectively, the "Reporting Persons"): (1) BUBI Services Limited, an investment holding company incorporated in the British Virgin Islands; (2) Ms. Nana Chan, Director and Chairperson of the Board of the Issuer; and (3) Mr. Wai Kwong Poon, Chief Executive Officer and Director of the Issuer. The principal executive office of the Issuer is located at Flat B, 16/F, Ford Glory Plaza. 37 Wing Hong Street, Cheung Sha Wan, Hong Kong. The registered address of BUBI is Vistra Corporate Services Centre, Wickhams Cay II, Road Town, Tortola, VG1110, British Virgin Islands. BUBI is an investment holding company primarily engaged in acquiring, holding, and managing equity interests in subsidiaries and other investments. It does not engage in direct business operations. Ms. Chan is the director and Chairperson of the Board of the Issuer and Mr. Poon is the Chief Executive Officer and Director of the Issuer. During the past five years, neither (1) BUBI nor any of its officers or directors, nor (2) Ms. Chan or Mr. Poon, have been convicted in a criminal proceeding (excluding traffic violations and similar misdemeanors). During the past five years, neither (1) BUBI nor any of its officers or directors, nor (2) Ms. Chan or Mr. Poon, have been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding, was or is 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. Both Ms. Chan and Mr. Poon are [Hong Kong] citizens . BUBI is a company incorporated under the laws of the British Virgin Islands. BUBI used Working Capital, Ms. Chan and Mr. Poon used Person Fund. The securities beneficially owned by the Reporting Persons were acquired by BUBI in connection with preparation for the Issuer's initial public offering. The Issuer was incorporated under the laws of the BVI on April 16, 2024. at which time one (1) ordinary share was issued to and beneficially owned by BUBI. On October 17, 2024, the Issuer approved an increase in its authorized share capital and the re-designation of authorized ordinary shares into Class A Ordinary Shares and Class B Ordinary Shares, and the single issued ordinary share held by BUBI was re-designated into one Class A Ordinary Share. On October 22, 2024, the Issuer allotted and issued 6,039,999 additional Class A Ordinary Shares to BUBI for a total consideration of US$1. On November 7, 2024, BUUU entered into a series of sale and purchase agreements with several investors pursuant to which the Issuer issued certain Class A Ordinary Shares to such investors. On November 18, 2024, the Issuer completed two share swap transactions pursuant to which it acquired equity interests in BU Creation Limited and BU Workshop Limited from Ms. Chan, Mr. Poon, and Perfect Wood Limited. As consideration for such acquisitions, the Issuer allotted and issued an aggregate of 5,000,000 Class B Ordinary Shares to BUBI upon the direction of the transferors. No additional funds, borrowings, or other forms of financing were used by Ms. Chan or Mr. Poon to acquire the securities reported herein. The Reporting Persons acquired the securities of the Issuer as part of a corporate reorganization undertaken in preparation for the Issuer's initial public offering, as described in Item 3. The securities are held for investment purposes and to maintain the Reporting Persons' indirect equity interests in the Issuer. The Reporting Persons intend to continue actively participating in the Issuer's management and strategic direction. Except as set forth herein, the Reporting Persons do not have any present plans or proposals that would result in any of the actions described in paragraphs (a) through (j) of Item 4. Incorporated by reference to Items 11 and 13 of the Cover Page. Incorporated by reference to Items 7-10 of the Cover Page. The Reporting Persons have not engaged in any transactions in the class of securities reported on that were effected during the past sixty days. N/A N/A The Reporting Persons have no contracts, arrangements, understandings, or relationships with respect to the Issuer's securities requiring disclosure under this Item 6. Except as set forth herein, there are no material agreements, contracts, arrangements, or understandings that require filing as exhibits under this Item 7. BUBI Services Ltd /s/ Nana CHAN 12/22/2025 Nana CHAN /s/ Nana CHAN 12/22/2025 Wai Kwong POON /s/ Wai Kwong POON 12/22/2025