SCHEDULE 13G 0001279891 XXXXXXXX LIVE Class A Ordinary Shares, no par value 06/30/2025 0002051587 BEST SPAC I Acquisition Corp. G1069P137 701, 7/Floor, United Building 17-19 Jubilee Street Hong Kong F4 No zip Rule 13d-1(b) WOLVERINE ASSET MANAGEMENT LLC IL 0 376070 0 376070 376070 N 6.51 IA Wolverine Trading Partners, Inc. IL 0 376070 0 376070 376070 N 6.51 CO HC Wolverine Holdings, L.P. IL 0 376070 0 376070 376070 N 6.51 HC Christopher L. Gust IL 0 376070 0 376070 376070 N 6.51 IN HC Robert R. Bellick IL 0 376070 0 376070 376070 N 6.51 IN HC BEST SPAC I Acquisition Corp. 701, 7/Floor, United Building, 17-19 Jubilee Street, Hong Kong, China, No zip Wolverine Asset Management, LLC Wolverine Holdings, L.P. Wolverine Trading Partners, Inc. Christopher L. Gust Robert R. Bellick c/o Wolverine Asset Management, LLC 175 West Jackson Boulevard, Suite 340 Chicago, IL 60604 Wolverine Asset Management, LLC - Illinois Wolverine Holdings, L.P. - Illinois Wolverine Trading Partners, Inc. - Illinois Christopher L. Gust - U.S. Citizen Robert R. Bellick - U.S. Citizen N IA HC Wolverine Asset Management, LLC ("WAM") is an investment manager and has voting and dispositive power over 376,070 Class A ordinary shares of the Issuer. The sole member and manager of WAM is Wolverine Holdings, L.P. ("Wolverine Holdings"). Robert R. Bellick and Christopher L. Gust may be deemed to control Wolverine Trading Partners, Inc. ("WTP"), the general partner of Wolverine Holdings. 6.51%. WAM may be deemed the beneficial owner of 6.51% of the Issuer's Class A ordinary shares, and each of Wolverine Holdings, WTP, Mr. Bellick, and Mr. Gust may be deemed the beneficial owner of 6.51% of the Issuer's outstanding Class A ordinary shares. Percentages were calculated by dividing the number of shares deemed beneficially owned by each reporting person by 5,777,000 (the number of Class A ordinary shares issued in the Issuer's IPO and simultaneous private placement [as Units] on June 16, 2025 according to the Issuer's Form 8-K filed June 17, 2025). 0 WAM has shared power to vote or direct the vote of 376,070 of the Issuer's Class A ordinary shares, and each of Wolverine Holdings, WTP, Mr. Bellick, and Mr. Gust has shared power to vote or direct the vote of 376,070 of the Issuer's Class A ordinary shares, in each case as set forth in Item 4(a) above. 0 WAM has shared power to dispose or direct the disposition of 376,070 of the Issuer's Class A ordinary shares, and each of Wolverine Holdings, WTP, Mr. Bellick, and Mr. Gust has shared power to dispose or direct the disposition of 376,070 of the Issuer's Class A ordinary shares, in each case as set forth in Item 4(a) above. Y N Wolverine Flagship Fund Trading Limited is known to have the right to receive the receipt of dividends from, or the proceeds from the sale of, the Issuer's Class A ordinary shares covered by this statement that may be deemed to be beneficially owned by WAM. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. WOLVERINE ASSET MANAGEMENT LLC /s/ Kenneth L. Nadel 07/07/2025 Wolverine Trading Partners, Inc. /s/ Christopher L. Gust 07/07/2025 Wolverine Holdings, L.P. /s/ Christopher L. Gust 07/07/2025 Christopher L. Gust /s/ Christopher L. Gust 07/07/2025 Robert R. Bellick /s/ Robert R. Bellick 07/07/2025