BEST SPAC I: Yun Chen Reports 0% Share Ownership

Yun Chen’s prior beneficial ownership was attributed to shared voting and dispositive power over securities held by the sponsor.

Rhea-AI Filing Summary

For BEST SPAC I Acquisition Corp. (BSAA), Yun Chen reported 0 shares beneficially owned (0%) after Naoda Investments Limited sold 100% of its interests in BEST SPAC I (Holdings) Corp., the sponsor, to A SPAC (Holdings) Group Corp. on September 29, 2026. Chen reported that he no longer holds voting or dispositive power over the issuer’s securities held by the sponsor.

Key Figures

Sponsor interests sold: 100% Beneficial ownership: 0 shares Percent of class: 0% +4 more

7 metrics

Sponsor interests sold 100% Naoda Investments Limited’s interests in BEST SPAC I (Holdings) Corp., sold September 29, 2026

Beneficial ownership 0 shares Yun Chen’s reported ownership of the issuer’s Class A ordinary shares

Percent of class 0% Yun Chen’s reported beneficial ownership

Sole voting power 0.00 shares Yun Chen’s reported power over the issuer’s securities

Shared voting power 0.00 shares Yun Chen’s reported power over the issuer’s securities

Sole dispositive power 0.00 shares Yun Chen’s reported power over the issuer’s securities

Shared dispositive power 0.00 shares Yun Chen’s reported power over the issuer’s securities

Key Terms

beneficially owned, shared voting power, shared dispositive power

3 terms

beneficially owned regulatory

"Amount beneficially owned: Yun Chen: 0"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power regulatory

"Shared Voting Power 0.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power regulatory

"Shared Dispositive Power 0.00"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many BSAA shares does Yun Chen beneficially own?

Yun Chen reported beneficial ownership of 0 Class A ordinary shares, or 0% of the class. He also reported 0 sole and shared voting power and 0 sole and shared dispositive power.

Why does Yun Chen report zero beneficial ownership of BSAA?

Naoda Investments Limited, of which Yun Chen is the sole director, sold 100% of its interests in BEST SPAC I (Holdings) Corp., the sponsor, to A SPAC (Holdings) Group Corp. on September 29, 2026. Chen had previously been deemed a beneficial owner through shared voting and dispositive power over the sponsor-held securities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/29/2026 - 04:45 PM Accepted by SEC EDGAR 09/29/2026 - 04:45 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

BEST SPAC I Acquisition Corp.

(Name of Issuer)

Class A Ordinary Shares, no par value

(Title of Class of Securities)

G1069P103

(CUSIP Number)

09/29/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G1069P103

1

Names of Reporting Persons

Yun Chen

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

HONG KONG

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

0 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: 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.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: BEST SPAC I Acquisition Corp.
(b)	Address of issuer's principal executive offices: 701, 7/Floor, United Building, 17-19 Jubilee Street, Hong Kong
Item 2.
(a)	Name of person filing: Yun Chen (the "Reporting Person")
(b)	Address or principal business office or, if none, residence: 701, 7/Floor, United Building, 17-19 Jubilee Street, Hong Kong
(c)	Citizenship: Yun Chen is a citizen of Hong Kong.
(d)	Title of class of securities: Class A Ordinary Shares, no par value
(e)	CUSIP No.: G1069P103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Yun Chen: 0
(b)	Percent of class: Yun Chen: 0
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Yun Chen: 0
	(ii) Shared power to vote or to direct the vote: Yun Chen: 0
	(iii) Sole power to dispose or to direct the disposition of: Yun Chen: 0
	(iv) Shared power to dispose or to direct the disposition of: Yun Chen: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.	Certifications:
	Not Applicable

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Yun Chen

Signature:	/s/ Yun Chen
Name/Title:	Yun Chen/Individual
Date:	09/29/2026