0001829126-26-008335 Sample Contracts

FORM OF PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT
Private Placement Warrants Purchase Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks • New York

THIS PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT, dated as of _____, 2026 (as it may from time to time be amended, this “Agreement”), is entered into by and between Hall Chadwick Acquisition Corp II, a Cayman Islands exempted company (the “Company”), and Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (“Cohen”) (the “Purchaser”).

UNDERWRITING AGREEMENT between Hall Chadwick Acquisition Corp II and COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC, as Representative of the Underwriters Dated: [●], 2026 UNDERWRITING AGREEMENT
Underwriting Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks • New York

The undersigned, Hall Chadwick Acquisition Corp II, a Cayman Islands exempted company (the “Company”), hereby confirms its agreement with Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the “Representative”) and with the other underwriters named on Schedule A hereto (if any), for which the Representative is acting as representative (the Representative and such other underwriters being collectively referred to herein as the “Underwriters” or, each underwriter individually, an “Underwriter,” provided that, if only the Representative is listed on such Schedule A, any references to Underwriters shall refer exclusively to the Representative) as follows:

INVESTMENT MANAGEMENT TRUST AGREEMENT
Investment Management Trust Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks
Hall Chadwick Acquisition Corp II CO Ascentium (Cayman) Limited, Grand Cayman KY1-1002, Cayman Islands.
Underwriting Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and among Hall Chadwick Acquisition Corp II, a Cayman Islands exempted company (the “Company”) and Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC as representative (the “Representative”) of the underwriters (the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”), of up to 30,000,000 of the Company’s units (including up to 3,500,000 units which may be purchased to cover over-allotments, if any) (the “Units”), each comprised of one Class A ordinary share, par value US$0.0001 per share, of the Company (the “Class A Ordinary Shares”) and one half warrant (each whole warrant, a “Warrant”). Each Warrant entitles the holder thereof to purchase one Class A Ordinary Share at a price of $11.50 per full share upon the consummation of the Company’s initial business combi

WARRANT AGREEMENT
Warrant Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks • New York

THIS WARRANT AGREEMENT (this “Agreement”), dated as of [●], 2026, is entered into by and between Hall Chadwick Acquisition Corp II, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation (the “Warrant Agent”, and also referred to herein as the “Transfer Agent”).

REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • August 4th, 2026 • Hall Chadwick Acquisition Corp II • Blank checks • New York

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [●], 2026, is made and entered into by and between Hall Chadwick Acquisition Corp II, a Cayman Islands exempted company (the “Company”), Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the “Representative”), Representative and Hall Chadwick II LLC, a Cayman Islands limited liability company (the “Sponsor”). (The Sponsor and the Representative together with any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of this Agreement, a “Holder” and collectively the “Holders”).