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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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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RECITALS

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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.

RECITALS

A.

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PROMISSORY NOTE NO. 001

SIXTY-FIRST COMMERCIAL FINANCE, LLC

340 Mt. Kemble Ave Morristown, NJ 07960

October 2, 2026 For value received, SHIMMICK CONSTRUCTION COMPANY, INC. (the “Borrower”) promises to pay to the order

of SIXTY-FIRST COMMERCIAL FINANCE, LLC (“Lender”, or together with any other then current holder, “Holder”), a Delaware Limited Liability Company, the principal sum of $14,285,255.00 together with interest thereon as provided herein. This Promissory Note together with all of the attachments hereto (including the attached Collateral Schedule (the “Collateral Schedule”)) collectively constitute an “Equipment Note,” and the obligations of Borrower hereunder constitute certain of the “Obligations” secured by the “Collateral” (including that certain Collateral described in the Collateral Schedule), as all such terms are defined or referred to in the Master Loan and Security Agreement, dated as of October 2, 2026, between the Lender and Borrower (the “Agreement”), and is subject to the terms and conditions set forth therein. Capitalized terms used herein without d

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MASTER LOAN AND SECURITY AGREEMENT

THIS MASTER LOAN AND SECURITY AGREEMENT (this “Agreement”) is entered into as of October 2, 2026, between SIXTY-FIRST COMMERCIAL FINANCE, LLC (together with its successors and permitted assigns, “Lender”) and SHIMMICK CONSTRUCTION COMPANY, INC. (together with its successors and permitted assigns, “Borrower”). (Section 16 of this Agreement contains the definitions and rules of construction for certain terms used herein.)

For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Lender and Borrower hereby respectively agree as follows:

SECTION 1. AGREEMENT TO ENTER INTO EQUIPMENT FINANCINGS.

(a)

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GUARANTY OF BUSINESS ORGANIZATIONS

1.

As an inducement for and in consideration of any loans, leases, or other financial accommodations granted from time to time to Shimmick Construction Company, Inc. (“Borrower”), by SIXTY-FIRST COMMERCIAL FINANCE, LLC (together with its successors and assigns, “Lender”), the undersigned (“Guarantor”), hereby, jointly and severally, if more than one, unconditionally guarantees the full and prompt payment, observance and performance when due, whether at the stated time, by acceleration, or otherwise, of all obligations of Borrower to Lender, howsoever created, arising or evidenced, whether direct

or indirect, absolute or contingent, whether or not of the same or similar class or of like kind to any indebtedness incurred contemporaneously with the execution of this Guaranty, and whether now or hereafter existing, or due or to become due, including without limitation, the following:

(a)

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AMENDMENT NO. 1 TO CREDIT AGREEMENT

This AMENDMENT NO. 1 TO CREDIT AGREEMENT (this “Amendment”) is made as of this 2 day of October, 2026 (the “First Amendment Effective Date”), by and among the Lenders from time to time party thereto, ACF FINCO I LP, a Delaware limited partnership, as administrative agent for each member of the Lender Group (in such capacity, together with its successors and assigns in such capacity, “Agent”), SHIMMICK CORPORATION, a Delaware corporation (“Holdings”), SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation (“Rust”) and THE LEASING CORPORATION, a Nevada corporation (“Leasing” and, together with Shimmick and Rust, “Borrowers” and each individually,

a “Borrower”).

RECITALS

A.

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NOTE PURCHASE AGREEMENT SILVER BOW MINING CORP.

This Note Purchase Agreement (this “Agreement”) is entered into as of October 2, 2026 (the “Effective Date”), by and between Silver Bow Mining Corp., a British Columbia corporation (the “Company”), and Ocean Partners UK Limited., a United Kingdom corporation (“Investor”).

RECITALS

WHEREAS, the Company desires to obtain financing through the issuance and sale of secured promissory note to fund operating expenses and the advancement of the Company’s Rainbow Block project in Butte, Montana and it’s to be acquired Jefferson County Metallurgical Complex, in Jefferson County, Montana (the “Complex”), including the Montana Tunnels Mine (the “Montana Tunnels Mine”);

WHEREAS, the Investor desires to purchase a secured promissory note from the Company upon the terms and conditions set forth herein; and

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EXHIBIT A
TO
NOTE PURCHASE AGREEMENT

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SECURED PROMISSORY NOTE

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THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS. THIS NOTE MAY NOT BE OFFERED, SOLD, TRANSFERRED OR ASSIGNED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR AN AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND, IN EACH CASE, IN COMPLIANCE WITH APPLICABLE STATE SECURITIES LAWS. NOTWITHSTANDING THE FOREGOING, THIS NOTE MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THIS NOTE.

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SECURED PROMISSORY NOTE

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$5,000,000.00	October 2, 2026

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** Exhibit 10.3**

**EXHIBIT B **

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SECURITY AGREEMENT

THIS SECURITY AGREEMENT (as amended, restated, supplemented, or otherwise modified, this “Agreement”) is made and entered as of October 2, 2026, by SILVER BOW MINING, INC. (“Grantor”), for the benefit of **OCEAN PARTNERS UK LIMITED **(“Lender”). Capitalized terms used but not otherwise defined herein have the meanings assigned to them in the Note (as defined below).

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WITNESSETH:

WHEREAS, Grantor and Lender are parties to those certain Secured Promissory Note dated as of October 2, 2026 in the principal amount of $5,000,000.00 (the “Note”);

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NEITHER THESE SECURITIES NOR THE SECURITIES ISSUABLE UPON CONVERSION HEREOF HAVE BEEN REGISTERED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE OR UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THE SECURITIES ARE RESTRICTED AND MAY NOT BE OFFERED, RESOLD, PLEDGED OR TRANSFERRED EXCEPT AS PERMITTED UNDER THE ACT PURSUANT TO REGISTRATION REQUIREMENTS THEREOF OR EXEMPTION THEREFROM.

FIBROBIOLOGICS, INC.

CONVERTIBLE DEBENTURE

Issuance Date: October 8, 2026Principal Amount: $1,200,000.00

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