Exhibit 99.10

PRELIMINARY PROXY CARD

Blue Acquisition Corp.

YOUR VOTE IS IMPORTANT

EXTRAORDINARY GENERAL MEETING

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF BLUE ACQUISITION CORP.

The undersigned, revoking any previous proxies, hereby acknowledges receipt of the Notice of Extraordinary General Meeting of Shareholders (the “Notice”) and the Proxy Statement/Prospectus (the “Proxy Statement”), and hereby appoints David Bauer, with full power of substitution, as proxy to vote the shares that the undersigned is entitled to vote (the “Shares”) at the Extraordinary General Meeting (the “Meeting”) of the shareholders of Blue Acquisition Corp., a Cayman Islands exempted company (“Blue”) to be held virtually on ___________, 2026, at ___ a.m. Eastern Time, accessible at [https://www._______], or at such other time, on such other date and at such other place to which the meeting may be adjourned or postponed. Without limiting the general authorization hereby given, said proxy is, instructed to vote or act as follows on the proposals set forth in the Proxy Statement and in the proxy’s discretion on such other matters as may properly come before the Meeting or any adjournment or postponement thereof. Capitalized terms used but not defined herein shall have the meanings ascribed thereto in the Proxy Statement.

Important Notice Regarding the Availability of Proxy Materials for the Meeting to be held on _________, 2026, at ______ a.m. Eastern Time: The Notice and the accompanying Proxy Statement are available at https://www.________________.

THE SHARES REPRESENTED BY THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE UNDERSIGNED SHAREHOLDER. IF NO SPECIFIC DIRECTIONS ARE GIVEN AS TO THE PROPOSALS, THIS PROXY WILL BE VOTED “FOR” ALL PROPOSALS, IF PRESENTED.

PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD AS SOON AS POSSIBLE.

PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED.

(Continued and to be marked, dated and signed on reverse side)

[PRELIMINARY COPY-SUBJECT TO COMPLETION]

PROXY

BLUE ACQUISITION CORP.

THE BOARD OF DIRECTORS OF BLUE ACQUISITION CORP. RECOMMENDS A VOTE “FOR” PROPOSALS 1 THROUGH 15.

Advisory Proposal 4

To approve authorized capital stock of Pubco of 500,000,000 shares of Pubco Class A Common Stock, par value $0.0001 per share (the “Pubco Class A Common Stock”), 200,000,000 shares of Pubco Class B Common Stock, par value $0.0001 per share (the “Pubco Class B Common Stock” and together with the Pubco Class A Common stock, the “Pubco Common Stock”), and 300,000,000 shares of preferred stock, par value $0.0001 per share (the “Pubco Preferred Stock”).

Advisory Proposal 5

To approve a provision that any or all of the directors of Pubco may be removed from office at any time, but only for cause and only by the affirmative vote of holders of 66 2/3% of the voting power of all then-outstanding shares of capital stock of Pubco entitled to vote generally in the election of directors, voting together as a single class.

Advisory Proposal 6

To approve a provision that Pubco will not be governed by Section 203 of the Delaware General Corporation Law.

Advisory Proposal 7

To approve a provision that amendment of the Proposed Charter generally requires the approval of the board of directors of Pubco (the “Pubco Board”) and a majority of the combined voting power of the then-outstanding shares of voting stock, voting together as a single class, with the exception of certain provisions that would require the affirmative vote of at least 66 2/3% of the total voting power of all the then-outstanding shares of stock of the company entitled to vote thereon, voting as a single class.

Advisory Proposal 8

To approve a provision expressly authorizing the Pubco Board to make, alter, amend or repeal the Proposed Bylaws by an affirmative vote of a majority of the Pubco Board. The Proposed Bylaws may also be adopted, amended, altered or repealed by the affirmative vote of at least 66 2/3% of the voting power of all of the then-outstanding shares of stock of the company entitled to vote generally in the election of directors, voting as a single class.

Advisory Proposal 9

To approve the removal of all of the provisions applicable only to blank check companies.

Advisory Proposal 10

To approve a provision providing for the automatic conversion of Pubco Class B Common Stock into Pubco Class A Common Stock upon any sale, assignment, transfer, conveyance, hypothecation or other transfer or disposition that is not a Permitted Transfer of such share or any legal or beneficial interest in such share.

Advisory Proposal 11

To approve a provision stating that holders of Pubco Class A Common Stock and Pubco Class B Common Stock will vote together as a single class on all matters, receive notice of meetings per the bylaws, and may vote as permitted under Delaware General Corporate Law, except where law, the Proposed Charter, or any Preferred Stock Designation provides otherwise. Under this proposal, each Class B share carries 20 votes and each Class A share carries 1 vote.

To withhold authority to vote for any individual nominee(s), mark “FOR ALL EXCEPT” and write the name(s) of the nominee(s) on the line below_________________________.

☐ MARK HERE FOR ADDRESS CHANGE AND NOTE AT RIGHT

PLEASE MARK, DATE AND RETURN THIS PROXY PROMPTLY.

Sign exactly as name appears on this proxy card. If shares are held jointly, each holder should sign. Executors, administrators, trustees, guardians, attorneys and agents should give their full titles. If shareholder is a corporation, sign in corporate name by an authorized officer, giving full title as such. If shareholder is a partnership, sign in partnership name by an authorized person, giving full title as such.