8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

Current Report

Pursuant to Section 13 or 15(d) of the SecuritiesExchange Act of 1934

August 6, 2025

Date of Report (Date of earliest event reported)

BEST SPAC I Acquisition Corp.

(Exact Name of Registrant as Specified in its Charter)

;

Registrant’s telephone number, including area code:

+852 9828 3397

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01. Other Events.

On August 6, 2025, BEST SPAC I Acquisition Corp. (the “Company”) announced that, on or about August 7, 2025, the holders of the Company’s units (the “Units”) may elect to separately trade the Class A ordinary shares and rights included in the Units. Each Unit consists of one Class A ordinary share and one right to receive one-tenth of one Class A ordinary share upon the consummation of an initial business combination. Any Units not separated will continue to trade on The Nasdaq Capital Market (“Nasdaq”) under the symbol “BSAAU.” Any underlying Class A ordinary shares and rights that are separated will trade on Nasdaq under the symbols “BSAA” and “BSAAR,” respectively. Holders of Units will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the holders’ Units into Class A ordinary shares and rights.

A copy of the press release issued by the Company announcing the separate trading of the securities underlying the Units is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: August 6, 2025

2

Exhibit 99.1

BEST SPAC I AcquisitionCorp.Announces the Separate Trading of its Class A Ordinary Shares and RightsCommencing August 7, 2025

HONG KONG., August6, 2025 – BEST SPAC I Acquisition Corp. (Nasdaq: BSAAU) (the “Company”) today announced that, commencing August 7, 2025, holders of the units sold in the Company’s initial public offering may elect to separately trade the Company’s Class A ordinary shares and rights included in the units.

No fractional rights will be issued upon separation of the units and only whole rights will trade. The Class A ordinary shares and rights that are separated will trade on The Nasdaq Capital Market under the symbols “BSAA” and “BSAAR,” respectively. Those units not separated will continue to trade on The Nasdaq Capital Market under the symbol “BSAAU.” Holders of units will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the units into Class A ordinary shares and rights.

A registration statement on Form S-1 (File No. 333-286237) (the “Registration Statement”) relating to the securities sold in the initial public offering, as amended, was declared effective by the U.S. Securities and Exchange Commission (the “SEC”) on June 12, 2025. The offering was made only by means of a prospectus. Copies of the prospectus relating to the offering may be obtained from Maxim Group LLC, 300 Park Avenue, 16th Floor, New York, NY 10022, Attention: Syndicate Department, by telephone at (212) 895-3745 or by email at syndicate@maximgrp.com, or by accessing the SEC’s website, www.sec.gov.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About BEST SPACI Acquisition Corp.

BEST SPAC I Acquisition Corp. is a blank check company, also commonly referred to as a special purpose acquisition company, or SPAC, formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses. BEST SPAC I Acquisition Corp. intends to focus on businesses in the consumer goods sector.

Forward-Looking Statements

This press release contains statements that constitute “forward-looking statements,” including with respect to the anticipated use of the net proceeds and search for an initial business combination. No assurance can be given that the net proceeds of the offering will be used as indicated. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of the Company, including those set forth in the Risk Factors section of the Registration Statement and related prospectus filed in connection with the initial public offering with the SEC. Copies are available on the SEC’s website, www.sec.gov. The Company undertakes no obligation to update these statements for revisions or changes after the date of this press release, except as required by law.