Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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(Print or Type Responses)

1. Name and Address of Reporting Person * United Acquisition SPAC LLC 2. Issuer Name and Ticker or Trading Symbol United Acquisition Corp. I [UACU] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O UNITED ACQUISITION CORP. I, 7100 W. CAMINO REAL, SUITE 302-48 3. Date of Earliest Transaction (Month/Day/Year) 03/14/2026 (Street) BOCA RATON, FL 33433 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Class B ordinary shares

(1)

03/14/2026

J(2)

439,233

(1)

(1)

Class B ordinary shares

439,233

$ 0

3,294,100(3)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
United Acquisition SPAC LLC C/O UNITED ACQUISITION CORP. I 7100 W. CAMINO REAL, SUITE 302-48 BOCA RATON, FL 33433		X
PACKER PAUL UNITED ACQUISITION CORP. I 7100 W. CAMINO REAL, SUITE 302-48 BOCA RATON, FL 33433	X	X	CEO, CFO and Chairman

Signatures

United Acquisition SPAC LLC, By: /s/ Paul Packer as Authorized Signatory and Managing Member		03/17/2026
**Signature of Reporting Person		Date
Paul Packer, By: /s/ Paul Packer		03/17/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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).
(1)	As described in the Issuer's registration statement on Form S-1 (File No. 333-291904) (the "Registration Statement") under the heading "Summary--Sponsor Information", the Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to certain adjustments described therein and have no expiration date.
(2)	439,233 Class B ordinary shares were forfeited by United Acquisition SPAC LLC (the "Sponsor") to the Issuer at no cost in connection with the expiration of the remaining portion of the underwriters' over-allotment option, as described in the Registration Statement.
(3)	These Class B ordinary shares are held by the Sponsor and were acquired pursuant to a subscription agreement by and between the Sponsor and the Issuer. Mr. Paul Packer, the Issuer's Chairman, Chief Executive Officer and Chief Financial Officer, is the sole managing member of the Sponsor. As a result, Mr. Packer may be deemed to have beneficial ownership of the Class B ordinary shares and the Private Placement Units (including the Private Placement Shares included in such units) held by the Sponsor. Mr. Packer disclaims such beneficial ownership except to the extent of his pecuniary interest therein.

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