Browse EX-10 agreements

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FORM OF LETTER AGREEMENT

August 25, 2026

Southern Cross Acquisition II Corp.

1412 Broadway, 21st Floor Suite 21V

New York, NY 10018

Re: Initial Public Offering

Ladies and Gentlemen:

This letter is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between Southern Cross Acquisition II Corp., a Cayman Islands company (the “Company”), and D. Boral Capital LLC, as representative (the “Representative”) of the several underwriters named on Schedule A thereto (the “Underwriters”), relating to an underwritten initial public offering (the “IPO”) of the Company’s units (the “Units”), each comprised of one ordinary share of the Company, par value $0.0001 per share (the “Ordinary Shares”), one redeemable warrant, with each whole warrant to acquire one Ordinary Share (the “Warrants”), and one right to receive one-fourth (1/4) of one Ordinary Share (the “Rights”). Certain capitalized terms used herein are defined in paragraph 14 hereof.

In order to induce the Company and the Underwriter to enter into the Underwriting Agreement and to proceed with the IPO, and in recognition of the benefit that such IPO will confer upon the undersigned as a shareholder of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned hereby agrees with the Company as follows:

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REGISTRATION RIGHTS AGREEMENT

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of the August 25, 2026, by and among Southern Cross Acquisition II Corp., a Cayman Islands company (the “Company”) and the undersigned parties listed under Investor on the signature page hereto (each, an “Investor” and collectively, the “Investors”).

WHEREAS, the Investors and the Company desire to enter into this Agreement to provide the Investors with certain rights relating to the registration of the securities held by them as of the date hereof; and

NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1. DEFINITIONS. The following capitalized terms used herein have the following meanings:

“Agreement” means this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.

“Business Combination” means the acquisition of direct or indirect ownership through a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses or entities.

“Commission” means the Securities and Exchange Commission, or any other Federal agency then administering the Securities Act or the Exchange Act.

“Company” is defined in the preamble to this Agreement.

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INVESTMENT MANAGEMENT TRUST AGREEMENT

This Investment Management Trust Agreement (this “Agreement”) is made effective as of August 25, 2026, by and between Southern Cross Acquisition II Corp., a Cayman Islands corporation (the “Company”), and Equiniti Trust Company, LLC, a New York limited liability trust company (the “Trustee”).

WHEREAS, the Company’s registration statement on Form S-1 (File No. 333-297331) (the “Registration Statement”) and prospectus (the “Prospectus”), for its initial public offering of the Company’s units (the “Units”), each of which consists of one share of the Company’s ordinary shares, par value $0.0001 per share (the “Ordinary Shares”), one warrant, each whole redeemable warrant entitling the holder to purchase one Ordinary Share (the “Warrants”), and one right to receive one-fourth (1/4) of an Ordinary Share upon the consummation of an initial business combination (such initial public offering hereinafter referred to as the “Offering”), has been declared effective as of the date hereof by the U.S. Securities and Exchange Commission (capitalized term used herein and not otherwise defined shall have the meanings set forth in the Registration Statement); and

WHEREAS, the Company has entered into an Underwriting Agreement (the “Underwriting Agreement”) with D. Boral Capital LLC, as representative (the “Representative”) of the several underwriters (the “Underwriters”) named therein;

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PRIVATE UNIT SUBSCRIPTION AGREEMENT

BETWEEN THE REGISTRANT, THE SPONSOR, AND THE REPRESENTATIVE

Southern Cross Acquisition II Corp.

1412 Broadway, 21st Floor Suite 21V

New York, NY 10018

August 25, 2026

Ladies and Gentlemen:

Southern Cross Acquisition II Corp. (the “Company”), a blank check company formed for the purpose of acquiring one or more businesses or entities (a “Business Combination”), intends to register its securities under the Securities Act of 1933, as amended (“Securities Act”), in connection with its initial public offering (“IPO”), pursuant to a registration statement on Form S-1 (File No. 333-297331) (“Registration Statement”).

The undersigned hereby commit to purchase an aggregate of 224,550 units (or up to 227,363 units if the overallotment option is exercised in full by D. Boral Capital LLC, the representative of underwriters of the IPO (“D. Boral”)) of the Company (“Private Units”), each Private Unit consisting of one ordinary share of the Company, par value $0.0001 per share (the “Ordinary Share”), one redeemable warrant, with each warrant to acquire one Ordinary Share (each a “Warrant”), and one right to receive one-fourth (1/4) of one Ordinary Share (each a “Right”), at $10.00 per Private Unit, for a purchase price of $2,245,500 (or up to $2,273,630 if the over-allotment option is exercised in full by D. Boral) (the “Private Unit Purchase Price”). Of these Private Units, Southern Cross Acquisition II Sponsor Corp. will purchase 205,800 Private Units (regardless of the exercise of

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SECURITIES TRANSFER AGREEMENT

This Securities Transfer Agreement is dated as of August 25, 2026 (this “Transfer”), by and among Southern Cross Acquisition II Sponsor Corp., a Cayman Islands exempted company (the “Seller”), Southern Cross Acquisition II Corp., a Cayman Islands exempted company (the “Company”), and the parties identified on the signature page hereto (each a “Buyer” and collectively, the “Buyers”).

WHEREAS, on the terms and subject to the conditions set forth in this Transfer, the Seller wishes to transfer to the Buyer ordinary shares, $0.0001 par value (“Ordinary Shares”) of the Company, a newly-organized blank check company, or special purpose acquisition company, formed for the purpose of effecting a merger, stock exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses or entities (a “Business Combination”), and the Buyer wish to purchase and receive such Initial Shares (as defined below) from the Seller.

NOW, THEREFORE, in consideration of the premises, representations, warranties and the mutual covenants contained in this Transfer, and for other good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:

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SECURITIES TRANSFER AGREEMENT

This Securities Transfer Agreement is dated as of August 25, 2026 (this “Transfer”), by and among Southern Cross Acquisition II Sponsor Corp., a Cayman Islands exempted company (the “Seller”), Southern Cross Acquisition II Corp., a Cayman Islands exempted company (the “Company”), and Xin Wang, with an address at 301, Unit 2, Building 35, Xianghaiyuan, Daxing District, Beijing, China (the “Buyer”).

WHEREAS, on the terms and subject to the conditions set forth in this Transfer, the Seller wishes to transfer to the Buyer ordinary shares, $0.0001 par value (“Ordinary Shares”) of the Company, a newly-organized blank check company, or special purpose acquisition company, formed for the purpose of effecting a merger, stock exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses or entities (a “Business Combination”), and the Buyer wish to purchase and receive such Initial Shares (as defined below) from the Seller.

NOW, THEREFORE, in consideration of the premises, representations, warranties and the mutual covenants contained in this Transfer, and for other good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:

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SECURITIES TRANSFER AGREEMENT

This Securities Transfer Agreement is dated as of August 25, 2026 (this “Transfer”), by and among Southern Cross Acquisition II Sponsor Corp., a Cayman Islands exempted company (the “Seller”), Southern Cross Acquisition II Corp., a Cayman Islands exempted company (the “Company”), and Ally Tong Zhang, with an address at 14 Pitlochry Place, Highland Park, Auckland, New Zealand (the “Buyer”).

WHEREAS, on the terms and subject to the conditions set forth in this Transfer, the Seller wishes to transfer to the Buyer certain amount of ordinary shares, $0.0001 par value (“Ordinary Shares”) of the Company, a newly-organized blank check company, or special purpose acquisition company, formed for the purpose of effecting a merger, stock exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses or entities (a “Business Combination”), and the Buyer wish to purchase and receive such Initial Shares (as defined below) from the Seller.

NOW, THEREFORE, in consideration of the premises, representations, warranties and the mutual covenants contained in this Transfer, and for other good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:

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Execution Version

LIMITED PARENT GUARANTEE

(Managed Services Agreement)

THIS LIMITED PARENT GUARANTEE (as it may be amended, restated, amended and restated, supplemented or otherwise modified from time to time, this “Agreement”) is entered into as of May 29, 2026, by IREN Limited (ACN 629 842 799), a company incorporated under the laws of Australia (the “Guarantor”) and CSC Delaware Trust Company, in its capacity as collateral agent (together with its successors and assigns appointed pursuant to the Intercreditor Agreement (as defined below), the “Collateral Agent”) for the Financing Parties (as defined in the Intercreditor Agreement).

PRELIMINARY STATEMENTS

A.IE US Hardware 3 LLC, a Delaware limited liability corporation (the “Company”), entered into that certain credit agreement, dated as of the date hereof, with, among others, CSC Delaware Trust Company, in its capacity as administrative agent (together with its successors and assigns, the “Administrative Agent”), and the financial institutions party thereto as “Lenders” (as amended, restated, amended and restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), pursuant to which the Lenders have agreed to make loans to the Company for the purposes and subject to the terms and conditions set forth therein.

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1 IREN Limited Restricted Stock Unit Award Agreement (Directors) This Director Restricted Stock Unit Award Agreement (“Agreement”) is entered into by and between IREN Limited (the “Company”) and the participant whose name appears below (the “Participant”) in order to set forth the terms and conditions of Director Restricted Stock Units (the “DRSUs”) hereby granted to the Participant under the IREN Limited 2025 Omnibus Incentive Plan (the “Plan”). This Agreement includes the terms and conditions of the DRSU grant attached hereto. Participant’s Name: “Date of Grant”: Award Type Number of DRSUs “Vesting Schedule” DRSUs Within ten days after the release of the Company’s annual financial results for the fiscal year ending 30 June 2027, and in any event no later than 31 December of that calendar year. Grant date valuation per DRSU is calculated as the 60-day average closing share price on the last trading day immediately prior to the grant date, being USD$XX.XX. Subject to this Agreement, the terms of the Plan and the terms and conditions of the addendum/addenda applicable to the Participant (the “Addendum”), which are incorporated herein by reference, the Company hereby grants to the Participant, on the Date of Grant, the number of DRSUs, with the Vesting Schedule as set forth above. Capitalized terms used but not otherwise defined herein or in the attached Terms and Conditions shall have the meanings ascribed to such terms in the Plan or Addendum, as applicable. To the extent of any inconsistency, the Addendum will prevail over any other provision of this Agreement. If the

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1 IREN Limited Restricted Stock Unit Award Agreement (KMP) This Restricted Stock Unit Award Agreement (“Agreement”) is entered into by and between IREN Limited (the “Company”) and the participant whose name appears below (the “Participant”) in order to set forth the terms and conditions of Restricted Stock Units (the “RSUs”) hereby granted to the Participant under the IREN Limited 2025 Omnibus Incentive Plan (the “Plan”), which such RSUs shall consist of RSUs that vest solely based on the Participant’s continued employment with the Group over the vesting period (the “TRSUs”) and RSUs that vest based on the Participant’s continued employment with the Group and the achievement of pre-established performance goals (the “PRSUs”). This Agreement includes the terms and conditions of the RSU grant attached hereto. Participant’s Name: “Date of Grant”: Award Type Number of RSUs Percentage of RSUs “Vesting Schedule” TRSUs 33.3% of total RSUs Within ten days after the release of the Company’s annual financial results for the fiscal year ending 30 June 2027, and in any event no later than 31 December of that calendar year. TRSUs 33.3% of total RSUs Within ten days after the release of the Company’s annual financial results for the fiscal year ending 30 June 2028, and in any event no later than 31 December of that calendar year. PRSUs Target Number: Maximum Number (Stretch): 33.4% of total RSUs Within ten days after the release of the Company’s annual financial results for the fiscal year ending 30 June 2029, and in any event no later than 31 December of that calendar year. Grant date

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Execution Version

LIMITED PARENT GUARANTEE

(Remarketing Right)

THIS LIMITED PARENT GUARANTEE (as it may be amended, restated, amended and restated, supplemented or otherwise modified from time to time, this “Agreement”) is entered into as of May 29, 2026, by IREN Limited (ACN 629 842 799), a company incorporated under the laws of Australia (the “Guarantor”) and CSC Delaware Trust Company, in its capacity as collateral agent (together with its successors and assigns appointed pursuant to the Intercreditor Agreement (as defined below), the “Collateral Agent”) for the Financing Parties (as defined in the Intercreditor Agreement).

PRELIMINARY STATEMENTS

A.IE US Hardware 3 LLC, a Delaware limited liability corporation (the “Company”), entered into that certain credit agreement, dated as of the date hereof, with, among others, CSC Delaware Trust Company, in its capacity as administrative agent (together with its successors and assigns, the “Administrative Agent”), and the financial institutions party thereto as “Lenders” (as amended, restated, amended and restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), pursuant to which the Lenders have agreed to make loans to the Company for the purposes and subject to the terms and conditions set forth therein.

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