X0202 SCHEDULE 13G/A 0002153415 XXXXXXXX LIVE 1 Class A Ordinary Shares, no par value 09/29/2026 0002051587 BEST SPAC I Acquisition Corp. G1069P103 701, 7/Floor, United Building 17-19 Jubilee Street Hong Kong F4 0000 Rule 13d-1(d) Yun Chen K3 0.00 0.00 0.00 0.00 0.00 N 0 IN On September 29, 2026, Naoda Investments Limited, of which Mr. Yun Chen serves as the sole director, sold 100% of its interests in BEST SPAC I (Holdings) Corp., the sponsor of the Issuer, to A SPAC (Holdings) Group Corp. Mr. Chen was previously deemed a beneficial owner of the Issuer's securities by virtue of having shared voting and dispositive power over the securities held by the sponsor. As of the date of this report, Mr. Yun Chen no longer holds any voting or dispositive power over the Issuer's securities held by BEST SPAC I (Holdings) Corp. BEST SPAC I Acquisition Corp. 701, 7/Floor, United Building, 17-19 Jubilee Street, Hong Kong Yun Chen (the "Reporting Person") 701, 7/Floor, United Building, 17-19 Jubilee Street, Hong Kong Yun Chen is a citizen of Hong Kong. Y Yun Chen: 0 Yun Chen: 0 Yun Chen: 0 Yun Chen: 0 Yun Chen: 0 Yun Chen: 0 Y Y Y Y Y Y Yun Chen /s/ Yun Chen 09/29/2026