Chan Po Yi Patsy - 05 Jan 2026 Form 3 Insider Report for Black Spade Acquisition III Co

Role: Director
Signature: /s/ Chan Po Yi Patsy
Issuer symbol: BIII, BIII-UN on NYSE
Transactions as of: 05 Jan 2026
Net transactions value: $0
Form type: 3
Filing time: 06 Jan 2026, 18:48:54 UTC
Previous filing: 04 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Chan Po Yi Patsy	Director	SUITE 2902, 29/F, THE CENTRIUM, 60 WYNDHAM STREET, CENTRAL, HONG KONG, HONG KONG	/s/ Chan Po Yi Patsy	06 Jan 2026	0001855122

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	BIIIU	Class B ordinary shares							05 Jan 2026	Class A ordinary shares	20,000		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	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.

Content

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.

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.