UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-42700 BEST SPAC I ACQUISITION CORP. (Exact name of registrant as specified in its charter) British Virgin Islands N/A (State or other jurisdiction of ...

FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 701, 7/Floor United Building 17-19 Jubilee Street Hong Kong (Address of principal executive offices) For the quarter ended September 30, 2025 +852 9828 3397 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Registrant's telephone number) For the transition period from to Commission file ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarter ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-42700 BEST SPAC I ACQUISITION CORP. (Exact Name of Registrant as Specified in Its Charter) British Virgin Islands N/A (State or other jurisd ...

As filed with the U.S. Securities and Exchange Commission under the Securities Act of 1933, as amended, on May 23, 2025. Registration No. 333-286237 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 __________________________________________ Form S-1/A (Amendment No. 1) REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 __________________________________________ BEST SPAC I Acquisition Corp. (Exact name of registrant as specified in its charter) ___________________________________ ...

REGISTRATION STATEMENT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 __________________________________________ Form S-1 UNDER THE SECURITIES ACT OF 1933 __________________________________________ BEST SPAC I Acquisition Corp. (Exact name of registrant as specified in its charter) __________________________________________ | British Virgin Islands | 6770 | N/A | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. Employer | | incorporation ...