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Form 3 D. Boral Acquisition I For: Feb 10 Filed by: Darwin John

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June 17, 2026 9:59 PM EDT
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 *
D. Boral Sponsor I LLC
(Last) (First) (Middle)
C/O D. BORAL ACQUISITION I CORP.
590 MADISON AVE
(Street)
NEW YORK NY 10022
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
02/10/2026 		3. Issuer Name and Ticker or Trading Symbol
D. Boral Acquisition I Corp. [ DBCA ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 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)
Form filed by One Reporting Person
X 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 12,321,429 (2) (1) D (2) (3)  
Explanation of Responses:
1. As described in the registration statement on Form S-1 (File No. 333- 291613) of D. Boral Acquisition I Corp. (the "Issuer") under the heading "Description of Securities--Founder Shares," the Class B ordinary shares will automatically convert into shares of Class A ordinary shares at the time of the Issuer's initial business combination, or at any time prior to the Issuer's initial business combination, at the option of the holder, on a one-for-one basis, subject to certain adjustments.
2. These shares represent the Class B ordinary shares held by D. Boral Sponsor I LLC (the "Sponsor") acquired pursuant to a subscription agreement by and between the Issuer and the Sponsor.
3. John Darwin is the manager of the Sponsor and holds voting and investment discretion with respect to the Class B ordinary shares held of record by the Sponsor. As such, Mr. Darwin may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Mr. Darwin disclaims any beneficial ownership except to the extent of his pecuniary interest therein.
/s/ John Darwin, Manager of MFH 1, LLC 06/17/2026
** Signature of Reporting Person Date
/s/ John Darwin 06/17/2026
** 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 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).
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.

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