8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 19, 2025

D. Boral ARC Acquisition I Corp.

(Exact name of registrant as specified in its charter)

D8

10 East 53rd Street, Suite 3001

New York, NY 10022

(Address of principal executive offices, including zip code)

+(332) 266-7344

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item8.01. Other Events

On August 19, 2025, D. Boral ARC Acquisition I Corp. (the “Company”) announced that, commencing on August 20, 2025, the holders of the units issued in its initial public offering (the “Units”), each Unit consisting of one Class A ordinary share of the Company, par value $0.0001 per share (the “Class A Ordinary Share”), and one-half of one warrant of the Company (the “Warrant”), with each whole Warrant entitling the holder thereof to purchase one Class A Ordinary Share for $11.50 per share, may elect to separately trade the Class A Ordinary Shares and the Warrants included in the Units. No fractional Warrants will be issued upon separation of the Units and only whole Warrants will trade. The Class A Ordinary Shares and the Warrants are expected to trade on the Nasdaq Global Market under the symbols “BCAR” and “BCAR W,” respectively. Holders of Units will need to have their brokers contact Odyssey Transfer and Trust Company, the Company’s transfer agent, in order to separate the Units into Class A Ordinary Shares and Warrants.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

2

Exhibit 99.1

D. Boral ARC Acquisition I Corp. Announces the Separate Tradingof its Class A Ordinary Shares and Warrants Commencing August 20, 2025

New York, NY, August 19, 2025 -- D. Boral ARC Acquisition I Corp. (the “Company”) today announced that, commencing August 20, 2025, holders of the units sold in the Company’s initial public offering may elect to separately trade the Company’s Class A ordinary shares and warrants included in the units.

No fractional warrants will be issued upon separation of the units and only whole warrants will trade. The Class A ordinary shares and warrants that are separated will trade on The Nasdaq Global Market under the symbols “BCAR” and “BCARW,” respectively. Those units not separated will continue to trade on The Nasdaq Global Market under the symbol “BCARU.” Holders of units will need to have their brokers contact Odyssey Transfer and Trust Company, the Company’s transfer agent, in order to separate the units into Class A ordinary shares and warrants.

A registration statement on Form S-1 relating to these securities was declared effective by the SEC on July 30, 2025. The offering was made only by means of a prospectus. Copies of the prospectus relating to the offering may be obtained from D. Boral Capital LLC: Attn: 590 Madison Avenue 39th Floor, New York, NY 10022, or by email at dbccapitalmarkets@dboralcapital.com, or by telephone at (212) 970-5150, or from the U.S. Securities and Exchange Commission’s (the “SEC”) website at www.sec.gov.

This press release shall not constitute anoffer to sell or a solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdictionin which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any suchstate or jurisdiction.

About D. Boral ARC AcquisitionI Corp.

The Company was formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. While the Company may pursue an acquisition opportunity in any business, industry, sector or geographical location, the Company intends to identify and acquire a business where the Company believes its management teams’ and affiliates’ expertise will provide a competitive advantage, including the technology, healthcare, and logistics industries.

Forward-Looking Statements

This press release contains statements that constitute “forward-looking statements,” including with respect to the Company’s search for an initial business combination. No assurance can be given that the Company will ultimately complete a business combination transaction in the sectors it is targeting or at all. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of the Company, including those set forth in the Risk Factors section of the Company’s registration statement and prospectus for the IPO filed with the SEC. Copies are available on the SEC’s website, www.sec.gov. The Company undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.

Contact

John Darwin, Chief Financial Officer

Email: contact@arc-group.com