Browse EX-10 agreements

LOCK-UP AGREEMENT

This LOCK-UP AGREEMENT is made as of [•] (this “Agreement”) by and between ArcheNova Technology Co., Ltd, a Cayman Islands exempted company (“PubCo”), and each of the undersigned (each, a “Shareholder”). Capitalized terms used but not defined in this Agreement shall have the meaning ascribed to such terms in the Business Combination Agreement (as defined below).

WHEREAS, on October 12, 2026, Horizon Space Acquisition I Corp., a Cayman Islands exempted company (“Acquiror” or “SPAC”), PubCo, ArcheNova International Co., Ltd, a Cayman Islands exempted company and a wholly-owned subsidiary of PubCo (“Merger Sub I”), ArcheNova Global Co., Ltd, a Cayman Islands exempted company and a wholly-owned subsidiary of PubCo (“Merger Sub II”), and ArcheNova Biotech Corp., a Cayman Islands exempted company (the “Company”), entered into a Business Combination Agreement (the “Business Combination Agreement”) pursuant to which, upon the terms and subject to the conditions set forth therein: (a) Merger Sub I will merge with and into Acquiror (the “*First Merger

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REGISTRATION RIGHTS AGREEMENT

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [•], is made and entered into by and among ArcheNova Technology Co., Ltd, a Cayman Islands exempted company limited by shares (“PubCo”), and each of the undersigned parties listed on the signature pages hereto under “Holders” (together with any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of this Agreement, each, a “Holder” and collectively, the “Holders”). Capitalized terms used but not otherwise defined herein shall have the respective meanings ascribed to such terms in the Business Combination Agreement (as defined below).

RECITALS

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** EXHIBIT 10.5**

ASSIGNMENT ASSUMPTION AND AMENDED & RESTATED WARRANT AGREEMENT

This ASSIGNMENT ASSUMPTION AND AMENDED & RESTATED WARRANT AGREEMENT (this “Agreement” or the “A&R Warrant Agreement”) is made as of [•] (the “Effective Date”) among Horizon Space Acquisition I Corp., a Cayman Islands exempted company limited by shares, with offices at 1412 Broadway, 21st Floor, Suite 21V, New York, NY 10018 (“SPAC”), ArcheNova Technology Co., Ltd, a Cayman Islands exempted company limited by shares (“PubCo”), and Continental Stock Transfer & Trust Company, a New York limited purpose trust company, with offices at 1 State Street, New York, New York 10004, as warrant agent (“Warrant Agent”).

RECITALS

WHEREAS, SPAC and the Warrant Agent are parties to that certain Warrant Agreement, dated as of December 21, 2022 (the “Existing* Warrant Agreement*”);

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THIS PROMISSORY NOTE (“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

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PROMISSORY NOTE

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Principal Amount: US$8,253.03

Dated: October 7, 2026

New York, New York

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SUBSCRIPTION AGREEMENT

This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on October 7, 2026, by and between Digital Asset Acquisition Corp., a Cayman Islands exempted company (“DAAC”), DAAQ Sponsor LLC, a Delaware limited liability company (the “Sponsor”), and the undersigned subscriber (“Subscriber”).

This Subscription Agreement substitutes and replaces any other previously signed Subscription Agreements (if any) among the Subscriber, Sponsor and DAAC.

WHEREAS, DAAC is entering into a Merger Agreement by and between Titan Strategics Holdings Ltd, a Cayman Islands exempted company (“Titan Strategics Holdings”), and DAAC (such merger agreement as amended, supplemented, restated or otherwise modified from time to time, the “Agreement” and the transactions contemplated by the Agreement, the “Transaction”);

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LOCK-UP AGREEMENT

THIS LOCK-UP AGREEMENT (this “Agreement”) is dated as of [●], 2026, by and among Renaissance Nuclear, Inc., a Delaware corporation (“Parent”) (formerly known as Digital Asset Acquisition Corp., a Cayman Islands exempted company prior to its domestication as a Delaware corporation), DAAQ Sponsor LLC, a Delaware limited liability company (the “Sponsor”), certain current and/or former shareholders, officers and directors of Titan Strategics Holdings Ltd, a Cayman Islands exempted company (the “Company”), identified on the signature pages and as set forth on Schedule I hereto (such persons, the “Company Holders”), and other persons and entities identified on the signature pages and as set forth on Schedule I hereto (collectively with the Sponsor, the Company Holders and any person or entity who hereafter becomes a party to this Agreement, the “Holders” and each, a “Holder”).

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**Exhibit 10.4 **

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**AMENDED AND RESTATED **

REGISTRATION RIGHTS AGREEMENT

THIS AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [●], is made and entered into by and among Renaissance Nuclear, Inc., a Delaware corporation (the “Company”) (formerly known as Digital Asset Acquisition Corp., a Cayman Islands exempted company prior to its domestication as a Delaware corporation), DAAQ Sponsor LLC, a Delaware limited liability company (the “Sponsor”), certain former shareholders of Titan Strategics Holdings Ltd, a Cayman Islands exempted company (“Target”), identified on Schedule 1 and party hereto (such stockholders, the “Target Holders”) and certain other persons and entities party hereto (collectively with the Sponsor, the Target Holders and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 or Section 5.10 of this Agreement, the “Holders” and each, a “Holder”).

RECITALS

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COMPANY SUPPORT AGREEMENT

This COMPANY SUPPORT AGREEMENT (this “Agreement”) is dated as of October 7, 2026, by and among the Persons set forth on Schedule I hereto (each, a “Company Shareholder” and, collectively, the “Company Shareholders”), Digital Asset Acquisition Corp., a Cayman Islands exempted company (which shall de-register from the Register of Companies in the Cayman Islands by way of continuation out of the Cayman Islands and into the State of Delaware so as to migrate to and domesticate as a Delaware corporation prior to the Closing) (“Parent”), and Titan Strategics Holdings Ltd, a Cayman Islands exempted company (the “Company”). Capitalized terms used but not defined herein shall have the respective meanings ascribed to such terms in the Merger Agreement (as defined below).

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RECITALS

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PARENT SUPPORT AGREEMENT

This PARENT SUPPORT AGREEMENT (this “Agreement”) is dated as of October 7, 2026, by and among the Persons set forth on Schedule I hereto (each, a “Parent Shareholder” and, collectively, the “Parent Shareholders”), Digital Asset Acquisition Corp., a Cayman Islands exempted company (which shall de-register from the Register of Companies in the Cayman Islands by way of continuation out of the Cayman Islands and into the State of Delaware so as to migrate to and domesticate as a Delaware corporation prior to the Closing) (“Parent”), and Titan Strategics Holdings Ltd, a Cayman Islands exempted company (the “Company”). Capitalized terms used but not defined herein shall have the respective meanings ascribed to such terms in the Merger Agreement (as defined below).

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RECITALS

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SECOND AMENDMENT TO CONSULTING AGREEMENT

This Second Amendment to Consulting Agreement (“Amendment”) is entered into effective as of October 1, 2026, by and between Twin Vee PowerCats Co. (“Company”) and Michael P. Dickerson and/or Dickerson Financial Services, LLC (“Consultant”).

Recitals

The parties entered into a Consulting Agreement dated February 25, 2026. The Company has requested that Consultant continue to temporarily serve as Interim Chief Financial Officer in connection with the proposed Agreement and Plan of Merger and the transactions contemplated thereby. The parties desire to amend the Agreement to provide for such appointment and the related compensation and protections.

1. Limited Interim Chief Financial Officer Appointment

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FORM OF

AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT

THIS AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of [●], 2026, by and among:

	(i)	FortuneX Acquisition Corporation, a Cayman Islands exempted company (prior to the Domestication Effective Time, “SPAC”, and at and after the Domestication Effective Time, “PubCo”);

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PARENT SUPPORT AGREEMENT

This Parent Support Agreement (this “Agreement”) is made as of October 6, 2026 by and among (i) CHARLTON ARIA ACQUISITION CORPORATION, a Cayman Islands exempted company (“SPAC”), (ii) KQC QUANTUM, INC., a Delaware corporation (“Parent”), and (iii) the undersigned stockholders of Parent (collectively, the “Holders” and each, a “Holder”). Any capitalized term used but not defined in this Agreement will have the meaning ascribed to such term in the Business Combination Agreement, dated as of the date hereof, by and among SPAC, Parent, KQC MS LIMITED, a Cayman Islands exempted company and wholly owned subsidiary of Parent (“Merger Sub”), and KOREA QUANTUM COMPUTING CO., LTD. (“KQC Korea”) (as it may be amended, supplemented, modified and/or restated from time to time, the “Business Combination Agreement”).

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