Black Spade Acquisition III (BIII) director reports 20,000 Class B shares

Rhea-AI Filing Summary

Chan Po Yi Patsy, a director of Black Spade Acquisition III Co, filed an initial ownership statement showing beneficial ownership of 20,000 Class B ordinary shares of the company. These Class B shares will automatically convert into Class A ordinary shares on a one-for-one basis, concurrently with or immediately following the company’s initial business combination, and they have no expiration date. Up to 2,609 of these Class B shares may be surrendered to the company for no consideration after the closing of the initial public offering, depending on how much of the underwriters’ over-allotment option is exercised.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Chan Po Yi Patsy

(Last) (First) (Middle)

SUITE 2902, 29/F, THE CENTRIUM

60 WYNDHAM STREET, CENTRAL

(Street)

HONG KONG K3 00000

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/05/2026

3. Issuer Name and Ticker or Trading Symbol
Black Spade Acquisition III Co [ BIIIU ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B ordinary shares(1)	(1)	(1)	Class A ordinary shares(1)	20,000(1)(2)	(1)	D

Explanation of Responses:

1. The Class B ordinary shares of the issuer will automatically convert into Class A ordinary shares of the issuer on a one-for-one basis (subject to certain adjustments, including share sub-divisions, share capitalizations, reorganizations, recapitalizations and other transactions) concurrently with or immediately following the consummation of the issuer's initial business combination, as described in the section entitled "Description of Securities" in the issuer's registration statement on Form S-1 (File No. 333-290602) filed with the Securities and Exchange Commission on September 30, 2025. The Class B ordinary shares have no expiration date.

2. Up to 2,609 of the Class B ordinary shares reported herein will be surrendered to the issuer for no consideration after the closing of the initial public offering depending on the extent to which the underwriters' over-allotment option is exercised.

	/s/ Chan Po Yi Patsy	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does Form 3 show for Black Spade Acquisition III Co (BIII)?

The filing shows that director Chan Po Yi Patsy beneficially owns 20,000 Class B ordinary shares of Black Spade Acquisition III Co.

Who is the reporting person in this Black Spade Acquisition III Co (BIII) Form 3?

The reporting person is Chan Po Yi Patsy, who is identified as a director of Black Spade Acquisition III Co.

How many Black Spade Acquisition III Co Class B shares does the director hold?

The director reports beneficial ownership of 20,000 Class B ordinary shares of Black Spade Acquisition III Co.

What happens to the Class B shares of Black Spade Acquisition III Co (BIII)?

The Class B ordinary shares will automatically convert into Class A ordinary shares on a one-for-one basis concurrently with or immediately following the company’s initial business combination, and they have no expiration date.

Will any of the Black Spade Acquisition III Co Class B shares be surrendered?

Up to 2,609 of the reported Class B ordinary shares may be surrendered to the company for no consideration after the closing of the initial public offering, depending on how much of the underwriters’ over-allotment option is exercised.

Is the ownership reported by Chan Po Yi Patsy direct or indirect?

The Form 3 indicates direct (D) beneficial ownership of the 20,000 Class B ordinary shares, with no separate entity listed in the nature of ownership field.