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SECONDAMENDEDANDRESTATEDRIGHTOFFIRSTREFUSAL AND CO-SALE AGREEMENT

THISSECONDAMENDEDANDRESTATEDRIGHTOFFIRSTREFUSALAND

CO-SALE AGREEMENT (this “Agreement”), is made as of April 5, 2023 by and among Nth Cycle,Inc.,aDelawarecorporation(the“Company”),eachholderoftheSeriesSeedPreferredS tock, par value $0.0001 per share of the Company, listed on Schedule A hereto (a “Series Seed I nvestor” and, together, the “Series Seed Investors”), each holder of the Series A Preferred Stock, par value $0.0001 per share of the Company, listed on Schedule Ahereto (a “Series A Investor” and, together, the “Series A Investors”), each holder of Series B Preferred Stock, par value$0.0001pershare oftheCompany,listedonScheduleAhereto(a “SeriesBInvestor” and togetherthe“SeriesBInvestors”andwitheachSeriesSeed Investorand eachSeriesAInvestor, an “Investor” and, together, the “Investors”), and the Key Holders (as defined below) listed on Schedule B.

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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”).

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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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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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**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”).

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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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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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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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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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AMENDMENT NO. 11 TO CREDIT, SECURITY AND GUARANTY AGREEMENT

This AMENDMENT NO. 11 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this

“Amendment”) is made as of this 2nd day of October, 2026 (the “Eleventh Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORATION, a Nevada corporation, AXIA ELECTRIC LLC, a Delaware limited liability company (collectively, the “Borrowers” and each individually, a “Borrower”), SHIMMICK CORPORATION (f/k/a SCCI National Holdings, Inc.), a Delaware corporation (“Holdings”), ALTER DOMUS (US) LLC, a Delaware limited liability company, as Agent, and the financial institutions or other entities parties hereto, each as a Lender.

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