Exhibit 10.1

EQUITY PURCHASE AGREEMENT

This equity purchase agreement is entered into as of August 14, 2025 (this “Agreement”), by and between Advent Technologies Holdings, Inc., a Delaware corporation (the “Company”), and Hudson Global Ventures, LLC, a Nevada limited liability company (the “Investor”, and collectively with the Company, the “Parties”).

WHEREAS, the Parties desire that, upon the terms and subject to the conditions contained herein, the Company shall issue and sell to the Investor, from time to time as provided herein, and the Investor shall purchase up to Fifty-Two Million Dollars ($52,000,000.00) of the Company’s Common Stock (as defined below);

NOW, THEREFORE, the Parties hereto agree as follows:

ARTICLE I

CERTAIN DEFINITIONS

Section 1.1 DEFINED TERMS. As used in this Agreement, the following terms shall have the following meanings specified or indicated (such meanings to be equally applicable to both the singular and plural forms of the terms defined):

“Agreement” shall have the meaning specified in the preamble hereof.

“Average Daily Trading Value” shall mean the average trading volume of the Company’s Common Stock on the Principal Market during the three (3) Trading Days immediately preceding the respective Put Date multiplied by the lowest closing price of the Company’s Common Stock on the Principal Market during the three (3) Trading Days immediately preceding the respective Put Date.

“Bankruptcy Law” means Title 11, U.S. Code, or any similar federal or state law for the relief of debtors.

“Claim Notice” shall have the meaning specified in Section 9.3(a).

“Clearing Costs” shall mean all fees incurred by the Investor with respect to the Put Shares, including but not limited to fees charged by or paid to any brokerage firm (including commissions), any clearing firm, and Transfer Agent fees, as well as attorney fees of $1,000 per Put.

“Clearing Date” shall be the date on which the Investor receives the Put Shares in its brokerage account.

“Closing” shall mean one of the closings of a purchase and sale of shares of Common Stock pursuant to Section 2.3.

“Closing Certificate” shall mean the closing certificate of the Company in the form of Exhibit B hereto.

“Closing Date” shall mean the date of any Closing hereunder.

“Commitment Period” shall mean the period commencing on the Execution Date, and ending on the earlier of (i) the date on which the Investor shall have purchased Put Shares pursuant to this Agreement equal to the Maximum Commitment Amount, (ii) twenty-four (24) months after the date of this Agreement, (iii) written notice of termination by the Company to the Investor (which shall not occur at any time that the Investor holds any of the Put Shares), (iv) the Registration Statement is no longer effective after the initial effective date of the Registration Statement, or (v) the date that, pursuant to or within the meaning of any Bankruptcy Law, the Company commences a voluntary case or any Person commences a proceeding against the Company, a Custodian is appointed for the Company or for all or substantially all of its property or the Company makes a general assignment for the benefit of its creditors; provided, however, that the provisions of Articles III, IV, V, VI, IX and the agreements and covenants of the Company and the Investor set forth in Article X shall survive the termination of this Agreement.

“Common Stock” shall mean the Company’s common shares, $0.0001 par value per share, and any shares of any other class of common stock whether now or hereafter authorized, having the right to participate in the distribution of dividends (as and when declared) and assets (upon liquidation of the Company).

“Common Stock Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire at any time Common Stock, including, without limitation, any debt, preferred stock, right, option, warrant or other instrument that is at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

“Company” shall have the meaning specified in the preamble to this Agreement.

“Custodian” means any receiver, trustee, assignee, liquidator or similar official under any Bankruptcy Law.

“Damages” shall mean any loss, claim, damage, liability, cost and expense (including, without limitation, reasonable attorneys’ fees and disbursements and costs and expenses of expert witnesses and investigation).

“Dispute Period” shall have the meaning specified in Section 9.3(a).

“DTC” shall mean The Depository Trust Company, or any successor performing substantially the same function for the Company.

“DTC/FAST Program” shall mean the DTC’s Fast Automated Securities Transfer Program.

“DWAC” shall mean Deposit Withdrawal at Custodian as defined by the DTC.

“DWAC Eligible” shall mean that (a) the Common Stock is eligible at DTC for full services pursuant to DTC’s Operational Arrangements, including, without limitation, transfer through DTC’s DWAC system, (b) the Company has been approved (without revocation) by the DTC’s underwriting department, (c) the Transfer Agent is approved as an agent in the DTC/FAST Program, (d) the Put Shares are otherwise eligible for delivery via DWAC, and (e) the Transfer Agent does not have a policy prohibiting or limiting delivery of the Put Shares, as applicable, via DWAC.

“DWAC Shares” means shares of Common Stock that are (i) issued in electronic form, (ii) freely tradable and transferable and without restriction on resale and (iii) timely credited by the Company to the Investor’s or its designee’s specified DWAC account with DTC under the DTC/FAST Program, or any similar program hereafter adopted by DTC performing substantially the same function.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

“Execution Date” shall mean the date of this Agreement.

“FINRA” shall mean the Financial Industry Regulatory Authority, Inc.

“Investment Amount” shall mean the Put Shares referenced in the Put Notice multiplied by the Purchase Price, minus the Clearing Costs.

“Indemnified Party” shall have the meaning specified in Section 9.2.

“Indemnifying Party” shall have the meaning specified in Section 9.2.

“Indemnity Notice” shall have the meaning specified in Section 9.3(e).

“Initial Purchase Price” shall mean 84% of the closing price of the Company’s Common Stock on the Principal Market on the Trading Day immediately preceding the respective Put Date.

“Investor” shall have the meaning specified in the preamble to this Agreement.

“Lien” means a lien, charge, pledge, security interest, encumbrance, right of first refusal, preemptive right or other restriction.

“Market Price” shall mean 84% of the lowest closing price of the Company’s Common Stock on the Principal Market on any Trading Day during the Valuation Period, as reported by Quotestream or other reputable source designated by the Investor, subject to adjustment as provided in this Agreement.

“Material Adverse Effect” shall mean any effect on the business, operations, properties, or financial condition of the Company and the Subsidiaries that is material and adverse to the Company and the Subsidiaries and/or any condition, circumstance, or situation that would prohibit or otherwise materially interfere with the ability of the Company to enter into and perform its obligations under any Transaction Document.

“Maximum Commitment Amount” shall mean Fifty-Two Million Dollars ($52,000,000.00).

“Person” shall mean an individual, a corporation, a partnership, an association, a trust or other entity or organization, including a government or political subdivision or an agency or instrumentality thereof.

“Principal Market” shall mean any of the national exchanges (i.e. NYSE, NYSE American, and Nasdaq) which is at the time the principal trading platform for the Common Stock (excluding all OTC marketplaces).

“Purchase Price” shall mean the lesser of the (i) Initial Purchase Price or (ii) Market Price on such date on which the Purchase Price is calculated in accordance with the terms and conditions of this Agreement.

“Put” shall mean the right of the Company to require the Investor to purchase shares of Common Stock, subject to the terms and conditions of this Agreement.

“Put Date” shall mean any Trading Day during the Commitment Period that a Put Notice is deemed delivered pursuant to Section 2.2(b).

“Put Notice” shall mean a written notice, substantially in the form of Exhibit A hereto, to Investor setting forth the Put Shares which the Company intends to require Investor to purchase pursuant to the terms of this Agreement.

“Put Shares” shall mean all shares of Common Stock issued, or that the Company shall be entitled to issue, per any applicable Put Notice in accordance with the terms and conditions of this Agreement.

“Registration Rights Agreement” shall mean that certain registration rights agreement entered into by the Company with the Investor on the date hereof in connection with this Agreement.

“Registration Statement” shall have the meaning specified in Section 6.4.

“Regulation D” shall mean Regulation D promulgated under the Securities Act.

“Required Minimum” shall mean, as of any date, the maximum aggregate number of shares of Common Stock potentially issuable at such time pursuant to the Transaction Documents, which shall be calculated on each such date as follows: the then remaining Maximum Commitment Amount divided by the Initial Purchase Price on each such date, ignoring any beneficial ownership limitations set forth herein.

“Rule 144” shall mean Rule 144 under the Securities Act or any similar provision then in force under the Securities Act.

“SEC” shall mean the United States Securities and Exchange Commission.

“SEC Documents” shall have the meaning specified in Section 4.5.

“Securities” means, collectively, the Put Shares.

“Securities Act” shall mean the Securities Act of 1933, as amended.

“Shareholder Approval” shall mean the approval of a sufficient amount of holders of the Company’s Common Stock to satisfy the shareholder approval requirements for such action as provided in Nasdaq Rule 5635(d), to effectuate the transactions contemplated by this Agreement, including but not limited to the issuance of Common Stock under this Agreement, including but not limited to the Put Shares, in excess of 534,031 shares of Common Stock (the “Exchange Cap”), subject to appropriate adjustment for any stock dividend, stock split, stock combination, rights offerings, reclassification or similar transaction that proportionately decreases or increases the Common Stock.

“Subsidiary” means any Person the Company wholly-owns or controls, or in which the Company, directly or indirectly, owns a majority of the voting stock or similar voting interest, in each case that would be disclosable pursuant to Item 601(b)(21) of Regulation S-K promulgated under the Securities Act.

“Third Party Claim” shall have the meaning specified in Section 9.3(a).

“Trading Day” shall mean a day on which the Principal Market shall be open for business.

“Transaction Documents” shall mean this Agreement, the Registration Rights Agreement, and all exhibits hereto and thereto.

“Transfer Agent” shall mean Continental Stock Transfer & Trust Company, the current transfer agent of the Company, with a mailing address of 1 State Street, Floor 30, New York. NY 10004, and any successor transfer agent of the Company.

“Valuation Period” shall mean the period beginning on the Put Date and continuing through the date that is three (3) Trading Days immediately following the Clearing Date associated with the applicable Put Notice.

ARTICLE II

PURCHASE AND SALE OF COMMON STOCK

Section 2.1 PUTS. Subject to the terms and conditions set forth herein (including, without limitation, the provisions of Article VII), the Company shall have the right, but not the obligation, to direct the Investor, by its delivery to the Investor of a Put Notice from time to time, to purchase Put Shares (i) in a minimum amount not less than $25,000.00 (calculated using the Initial Purchase Price) and (ii) in a maximum amount up to the lesser of (a) $3,000,000.00 (calculated using the Initial Purchase Price) or (b) 200% of the Average Daily Trading Value.

Section 2.2 MECHANICS.

(a) PUT NOTICE. At any time and from time to time during the Commitment Period, except as provided in this Agreement, the Company may deliver a Put Notice to Investor, subject to satisfaction of the conditions set forth in Section 7.2 and otherwise provided herein. The initial price per share identified in the respective Put Notice shall be equal to the Initial Purchase Price and shall be used for purposes of determining the number of shares of Common Stock that the Company can issue pursuant to a respective Put Notice in accordance with Section 2.1 of this Agreement. At the end of the Valuation Period, the Purchase Price for the respective Put Shares and Investment Amount shall be established as further provided in this Agreement. The Company shall deliver, or cause to be delivered, the Put Shares as DWAC Shares to the Investor on or before 4:30 p.m. Eastern time, on the Put Date.

(b) DATE OF DELIVERY OF PUT NOTICE. A Put Notice shall be deemed delivered on (i) the Trading Day it is received by email by the Investor if such notice is received on or prior to 2:30 p.m. Eastern time, or (ii) the immediately succeeding Trading Day if it is received by email after 2:30 p.m. Eastern time on a Trading Day or at any time on a day which is not a Trading Day. The Company shall not deliver a Put Notice to the Investor during the period beginning on the Put Date of the immediately prior Put Notice and continuing through the date that is three (3) Trading Days following the Clearing Date associated with the immediately prior Put Notice (the “Cooldown Period”), provided, however, that the respective Cooldown Period shall not apply to the immediately prior Put Notice if (i) the Put Shares for the immediately prior Put Notice have been delivered to the Investor pursuant to the terms of this Agreement and (ii) the trading volume of the Common Stock on any Trading Day during the respective Cooldown Period exceeds 400% of the total Put Shares of the immediately prior Put Notice (the “Cooldown Waiver Trigger”). Notwithstanding anything herein to the contrary, all trading volume of the Common Stock on the respective Put Date that occurs prior to the specific time that the Put Notice is delivered to Investor shall not count towards the Cooldown Waiver Trigger.

Section 2.3 CLOSINGS. At the end of the Valuation Period, the Purchase Price and Investment Amount for the respective Put Shares shall be established as provided in this Agreement. If the value of the Put Shares delivered to the Investor causes the Company to exceed the Maximum Commitment Amount, then immediately after the Valuation Period the Investor shall return to the Company the surplus amount of Put Shares associated with such Put and the Purchase Price with respect to such Put shall be reduced by any Clearing Costs related to the return of such Put Shares. The Closing of a Put shall occur within two (2) Trading Days following the end of the respective Valuation Period, whereby the Investor shall deliver the Investment Amount by wire transfer of immediately available funds to an account designated by the Company.

Section 2.4 PRINCIPAL MARKET REGULATION. The Company shall not effect any issuances or sales of the Put Shares under this Agreement above the Exchange Cap and the Investor shall not have the obligation to purchase Put Shares under this Agreement above the Exchange Cap until the Shareholder Approval has been obtained by the Company and is in effect.

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF INVESTOR

The Investor represents and warrants to the Company that:

Section 3.1 INTENT. The Investor is entering into this Agreement for its own account and the Investor has no present arrangement (whether or not legally binding) at any time to sell the Securities to or through any Person in violation of the Securities Act or any applicable state securities laws; provided, however, that the Investor reserves the right to dispose of the Securities at any time in accordance with federal and state securities laws applicable to such disposition.

Section 3.2 NO LEGAL ADVICE FROM THE COMPANY. The Investor acknowledges that it has had the opportunity to review this Agreement and the transactions contemplated by this Agreement with its own legal counsel and investment and tax advisors. The Investor is relying solely on such counsel and advisors and not on any statements or representations of the Company or any of its representatives or agents for legal, tax or investment advice with respect to this investment, the transactions contemplated by this Agreement or the securities laws of any jurisdiction.

Section 3.3 ACCREDITED INVESTOR. The Investor is an accredited investor as defined in Rule 501(a)(3) of Regulation D, and the Investor has such experience in business and financial matters that it is capable of evaluating the merits and risks of an investment in the Securities. The Investor acknowledges that an investment in the Securities is speculative and involves a high degree of risk.

Section 3.4 AUTHORITY. The Investor has the requisite power and authority to enter into and perform its obligations under this Agreement and the other Transaction Documents and to consummate the transactions contemplated hereby and thereby. The execution and delivery of this Agreement and the other Transaction Documents and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all necessary action and no further consent or authorization of the Investor is required. Each Transaction Document to which it is a party has been duly executed by the Investor, and when delivered by the Investor in accordance with the terms hereof, will constitute the valid and binding obligation of the Investor enforceable against it in accordance with its terms, subject to applicable bankruptcy, insolvency, or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or by other equitable principles of general application.

Section 3.5 NOT AN AFFILIATE. The Investor is not an officer, director or “affiliate” (as that term is defined in Rule 405 of the Securities Act) of the Company.

Section 3.6 ORGANIZATION AND STANDING. The Investor is an entity duly incorporated or formed, validly existing and in good standing under the laws of the jurisdiction of its incorporation or formation with full right, corporate, partnership, limited liability company or similar power and authority to enter into and to consummate the transactions contemplated by this Agreement and the other Transaction Documents.

Section 3.7 ABSENCE OF CONFLICTS. The execution and delivery of this Agreement and the other Transaction Documents, and the consummation of the transactions contemplated hereby and thereby and compliance with the requirements hereof and thereof, will not (a) violate any law, rule, regulation, order, writ, judgment, injunction, decree or award binding on the Investor, (b) violate any provision of any indenture, instrument or agreement to which the Investor is a party or is subject, or by which the Investor or any of its assets is bound, or conflict with or constitute a material default thereunder, (c) result in the creation or imposition of any lien pursuant to the terms of any such indenture, instrument or agreement, or constitute a breach of any fiduciary duty owed by the Investor to any third party, or (d) require the approval of any third-party (that has not been obtained) pursuant to any material contract, instrument, agreement, relationship or legal obligation to which the Investor is subject or to which any of its assets, operations or management may be subject.

Section 3.8 DISCLOSURE; ACCESS TO INFORMATION. The Investor had an opportunity to review copies of the SEC Documents filed on behalf of the Company and has had access to all publicly available information with respect to the Company.

Section 3.9 MANNER OF SALE. At no time was the Investor presented with or solicited by or through any leaflet, public promotional meeting, television advertisement or any other form of general solicitation or advertising.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF THE COMPANY

The Company represents and warrants to the Investor that:

Section 4.1 ORGANIZATION OF THE COMPANY. The Company and each of the Subsidiaries is an entity duly incorporated or otherwise organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation or organization, with the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted. Neither the Company nor any Subsidiary is in violation nor default of any of the provisions of its respective certificate or articles of incorporation, bylaws or other organizational or charter documents. Each of the Company and the Subsidiaries is duly qualified to conduct business and is in good standing as a foreign corporation or other entity in each jurisdiction in which the nature of the business conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, could not have or reasonably be expected to result in a Material Adverse Effect and no proceeding has been instituted in any such jurisdiction revoking, limiting or curtailing or seeking to revoke, limit or curtail such power and authority or qualification.

Section 4.2 AUTHORITY. The Company has the requisite corporate power and authority to enter into and perform its obligations under this Agreement and the other Transaction Documents. The execution and delivery of this Agreement and the other Transaction Documents by the Company and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all necessary corporate action and no further consent or authorization of the Company or its Board of Directors or stockholders is required. Each of this Agreement and the other Transaction Documents has been duly executed and delivered by the Company and constitutes a valid and binding obligation of the Company enforceable against the Company in accordance with its terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or by other equitable principles of general application.

Section 4.3 CAPITALIZATION. Except as set forth in the SEC Documents, the Company has not issued any capital stock since its most recently filed periodic report under the Exchange Act, other than pursuant to the exercise of employee stock options under the Company’s stock option plans, the issuance of shares of Common Stock to employees pursuant to the Company’s employee stock purchase plans and pursuant to the conversion and/or exercise of Common Stock Equivalents outstanding as of the date of the most recently filed periodic report under the Exchange Act. No Person has any right of first refusal, preemptive right, right of participation, or any similar right to participate in the transactions contemplated by the Transaction Documents. Except as set forth in the SEC Documents and except as a result of the purchase and sale of the Securities, there are no outstanding options, warrants, scrip rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities, rights or obligations convertible into or exercisable or exchangeable for, or giving any Person any right to subscribe for or acquire any shares of Common Stock, or contracts, commitments, understandings or arrangements by which the Company or any Subsidiary is or may become bound to issue additional shares of Common Stock or Common Stock Equivalents. The issuance and sale of the Securities will not obligate the Company to issue shares of Common Stock or other securities to any Person (other than the Investor) and will not result in a right of any holder of Company securities to adjust the exercise, conversion, exchange or reset price under any of such securities. There are no stockholders agreements, voting agreements or other similar agreements with respect to the Company’s capital stock to which the Company is a party or, to the knowledge of the Company, between or among any of the Company’s stockholders.

Section 4.4 LISTING AND MAINTENANCE REQUIREMENTS. The Common Stock is registered pursuant to Section 12(b) or 12(g) of the Exchange Act, and the Company has taken no action designed to, or which to its knowledge is likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act nor has the Company received any notification that the SEC is contemplating terminating such registration. Except as set forth in the SEC Documents, the Company has not, in the twelve (12) months preceding the date hereof, received notice from the Principal Market on which the Common Stock is or has been listed or quoted to the effect that the Company is not in compliance with the listing or maintenance requirements of such Principal Market. The Company is, and has no reason to believe that it will not in the foreseeable future continue to be, in compliance with all such listing and maintenance requirements.

Section 4.5 SEC DOCUMENTS; DISCLOSURE. The Company has filed all reports, schedules, forms, statements and other documents required to be filed by the Company under the Securities Act and the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, for the one (1) year preceding the date hereof (or such shorter period as the Company was required by law or regulation to file such material) (the foregoing materials, including the exhibits thereto and documents incorporated by reference therein, being collectively referred to herein as the “SEC Documents”) on a timely basis or has received a valid extension of such time of filing and has filed any such SEC Documents prior to the expiration of any such extension. As of their respective dates, the SEC Documents complied in all material respects with the requirements of the Securities Act and the Exchange Act, as applicable, and other federal laws, rules and regulations applicable to such SEC Documents, and none of the SEC Documents when filed contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. The financial statements of the Company included in the SEC Documents comply as to form and substance in all material respects with applicable accounting requirements and the published rules and regulations of the SEC or other applicable rules and regulations with respect thereto. Such financial statements have been prepared in accordance with generally accepted accounting principles applied on a consistent basis during the periods involved (except (a) as may be otherwise indicated in such financial statements or the notes thereto or (b) in the case of unaudited interim statements, to the extent they may not include footnotes or may be condensed or summary statements) and fairly present in all material respects the financial position of the Company as of the dates thereof and the results of operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal, immaterial, year-end audit adjustments). Except with respect to the material terms and conditions of the transactions contemplated by the Transaction Documents, the Company confirms that neither it nor any other Person acting on its behalf has provided the Investor or its agents or counsel with any information that it believes constitutes or might constitute material, non-public information. The Company understands and confirms that the Investor will rely on the foregoing representation in effecting transactions in securities of the Company.

Section 4.6 VALID ISSUANCES. The Securities are duly authorized and, when issued and paid for in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid, and non-assessable, free and clear of all Liens imposed by the Company other than restrictions on transfer provided for in the Transaction Documents.

Section 4.7 NO CONFLICTS. The execution, delivery and performance of this Agreement and the other Transaction Documents by the Company and the consummation by the Company of the transactions contemplated hereby and thereby, including, without limitation, the issuance of the Securities, do not and will not: (a) result in a violation of the Company’s or any Subsidiary’s certificate or articles of incorporation, by-laws or other organizational or charter documents, (b) conflict with, or constitute a material default (or an event that with notice or lapse of time or both would become a material default) under, result in the creation of any Lien upon any of the properties or assets of the Company or any Subsidiary, or give to others any rights of termination, amendment, acceleration or cancellation of, any agreement, indenture, instrument or any “lock-up” or similar provision of any underwriting or similar agreement to which the Company or any Subsidiary is a party, or (c) result in a violation of any federal, state or local law, rule, regulation, order, judgment or decree (including federal and state securities laws and regulations) applicable to the Company or any Subsidiary or by which any property or asset of the Company or any Subsidiary is bound or affected (except for such conflicts, defaults, terminations, amendments, accelerations, cancellations and violations as would not, individually or in the aggregate, have a Material Adverse Effect) nor is the Company otherwise in violation of, conflict with or in default under any of the foregoing. The business of the Company is not being conducted in violation of any law, ordinance or regulation of any governmental entity, except for possible violations that either singly or in the aggregate do not and will not have a Material Adverse Effect. The Company is not required under federal, state or local law, rule or regulation to obtain any consent, authorization or order of, or make any filing or registration with, any court or governmental agency in order for it to execute, deliver or perform any of its obligations under this Agreement or the other Transaction Documents (other than any SEC, FINRA or state securities filings that may be required to be made by the Company subsequent to any Closing or any registration statement that may be filed pursuant hereto); provided that, for purposes of the representation made in this sentence, the Company is assuming and relying upon the accuracy of the relevant representations and agreements of Investor herein.

Section 4.8 NO MATERIAL ADVERSE CHANGE. No event has occurred that would have a Material Adverse Effect on the Company that has not been disclosed in subsequent SEC Documents.

Section 4.9 LITIGATION AND OTHER PROCEEDINGS. Except as disclosed in the SEC Documents, there are no actions, suits, investigations, inquiries or proceedings pending or, to the knowledge of the Company, threatened against or affecting the Company, any Subsidiary or any of their respective properties, nor has the Company received any written or oral notice of any such action, suit, proceeding, inquiry or investigation, which would have a Material Adverse Effect. No judgment, order, writ, injunction or decree or award has been issued by or, to the knowledge of the Company, requested of any court, arbitrator or governmental agency which would have a Material Adverse Effect. There has not been, and to the knowledge of the Company, there is not pending or contemplated, any investigation by the SEC involving the Company, any Subsidiary or any current or former director or officer of the Company or any Subsidiary.

Section 4.10 REGISTRATION RIGHTS. Except as set forth in the SEC Documents and as granted to Investor, no Person (other than the Investor) has any right to cause the Company to effect the registration under the Securities Act of any securities of the Company or any Subsidiary.

Section 4.11 No Solicitation; NO BROKERS. The Company has taken no action which would give rise to any claim by any person for brokerage commissions, transaction fees or similar payments relating to this Agreement or the transactions contemplated hereby. The Company represents and warrants that neither the Investor nor its employee(s), member(s), beneficial owner(s), or partner(s) solicited the Company to enter into this Agreement and consummate the transactions described in this Agreement. The Company represents and warrants that the Investor is not required to be registered as a broker-dealer under the Securities Exchange Act of 1934 in order to (i) enter into or consummate the transactions encompassed by the Transaction Documents, (ii) fulfill the Investor’s obligations under the Transaction Documents, or (iii) exercise any of the Investor’s rights under the Transaction Documents (including but not limited to the sale of the Securities).

ARTICLE V

COVENANTS OF INVESTOR

Section 5.1 COMPLIANCE WITH LAW; TRADING IN SECURITIES. The Investor’s trading activities with respect to shares of Common Stock will be in compliance with all applicable state and federal securities laws and regulations and the rules and regulations of FINRA and the Principal Market.

ARTICLE VI

COVENANTS OF THE COMPANY

Section 6.1 RESERVATION OF COMMON STOCK. The Company shall maintain a reserve from its duly authorized shares of Common Stock equal to the Required Minimum in accordance with the terms of this Agreement.

Section 6.2 LISTING OF COMMON STOCK. The Company shall promptly secure the listing of all of the Securities to be issued to the Investor hereunder on the Principal Market (subject to official notice of issuance) and shall maintain the listing of all such Securities from time to time issuable hereunder. The Company shall maintain the listing and trading of the Common Stock on the Principal Market (including, without limitation, maintaining sufficient net tangible assets) and will comply in all respects with the Company’s reporting, filing and other obligations under the bylaws or rules of FINRA and the Principal Market.

Section 6.3 OTHER EQUITY LINES AND TRANSACTIONS. During the period beginning on the date of this Agreement and continuing until the later of (i) 12 months from the date of this Agreement or (ii) the date that this Agreement is no longer in effect, the Company covenants and agrees that it will not, without the prior written consent of the Investor, enter into any other Equity Line of Credit (as defined below). So long as this Agreement remains in effect, covenants and agrees that it will not, without the prior written consent of the Investor, enter into any Variable Rate Transaction (as defined below) with any other party, with such consent not to be unreasonably withheld or delayed. “Equity Line of Credit” shall mean any transaction involving a written agreement between the Company and an investor or underwriter whereby the Company has the right to “put” its securities to the investor or underwriter over an agreed period of time and at an agreed price or price formula. “Variable Rate Transaction” means a transaction in which the Company (i) issues or sells any debt or equity securities that are convertible into,

exchangeable or exercisable for, or include the right to receive, additional shares of Common Stock either (A) at a conversion price, exercise price or exchange rate or other price that is based upon, and/or varies with, the trading prices of or quotations for the shares of Common Stock at any time after the initial issuance of such debt or equity securities or (B) with a conversion, exercise or exchange price that is subject to being reset at some future date after the initial issuance of such debt or equity security or upon the occurrence of specified or contingent events directly or indirectly related to the business of the Company or the market for the Common Stock or (ii) issues securities at a future determined price, provided, however, that an Equity Line of Credit shall not be deemed to be a Variable Rate Transaction.

Section 6.4 FILING OF CURRENT REPORT AND REGISTRATION STATEMENT. The Company agrees that it shall file a Current Report on Form 8-K, including the Transaction Documents as exhibits thereto, with the SEC within the time required by the Exchange Act, relating to the transactions contemplated by, and describing the material terms and conditions of, the Transaction Documents (the “Current Report”). The Company shall permit the Investor to review and comment upon the final pre-filing draft version of the Current Report at least one (1) Trading Day prior to its filing with the SEC, and the Company shall give reasonable consideration to all such comments. The Investor shall use its reasonable best efforts to comment upon the final pre-filing draft version of the Current Report within one (1) Trading Day from the date the Investor receives it from the Company. The Company shall also comply with the Registration Rights Agreement with respect to the filing and effectiveness deadlines of a new registration statement (the “Registration Statement”) in accordance with the terms of such Registration Rights Agreement.

Section 6.5 NO BROKER-DEALER ACKNOWLEDGEMENT. Absent a final adjudication from a court of competent jurisdiction stating otherwise, the Company shall not to any person, institution, governmental or other entity, state, claim, allege, or in any way assert, that Investor is currently, or ever has been, a broker-dealer under the Securities Exchange Act of 1934.

ARTICLE VII

CONDITIONS TO DELIVERY OF

PUT NOTICES AND CONDITIONS TO CLOSING

Section 7.1 CONDITIONS PRECEDENT TO THE RIGHT OF THE COMPANY TO ISSUE AND SELL PUT SHARES. In addition to the other provisions of this Agreement, the right of the Company to issue and sell the Put Shares to the Investor is subject to the satisfaction of each of the conditions set forth below:

(a) ACCURACY OF INVESTOR’S REPRESENTATIONS AND WARRANTIES. The representations and warranties of the Investor shall be true and correct in all material respects as of the date of this Agreement and as of the date of each Closing as though made at each such time.

(b) PERFORMANCE BY INVESTOR. Investor shall have performed, satisfied and complied in all respects with all covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by the Investor at or prior to such Closing.

Section 7.2 CONDITIONS PRECEDENT TO THE OBLIGATION OF INVESTOR TO PURCHASE PUT SHARES. The obligation of the Investor hereunder to purchase Put Shares is subject to the satisfaction of each of the following conditions:

(a) EFFECTIVE REGISTRATION STATEMENT. The Registration Statement, and any amendment or supplement thereto, shall remain effective for the resale by the Investor of the Put Shares at prevailing market prices (and not fixed prices) and (i) neither the Company nor the Investor shall have received notice that the SEC has issued or intends to issue a stop order with respect to such Registration Statement or that the SEC otherwise has suspended or withdrawn the effectiveness of such Registration Statement, either temporarily or permanently, or intends or has threatened to do so and (ii) no other suspension of the use of, or withdrawal of the effectiveness of, such Registration Statement or related prospectus shall exist.

(b) ACCURACY OF THE COMPANY’S REPRESENTATIONS AND WARRANTIES. The representations and warranties of the Company shall be true and correct in all material respects as of the date of this Agreement and as of the date of each Closing (except for representations and warranties specifically made as of a particular date).

(c) PERFORMANCE BY THE COMPANY. The Company shall have performed, satisfied and complied in all material respects with all covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by the Company, including but not limited to the delivery of the Put Shares as provided in Section 2.2(a) of this Agreement.

(d) NO INJUNCTION. No statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered, promulgated or adopted by any court or governmental authority of competent jurisdiction that prohibits or directly and materially adversely affects any of the transactions contemplated by the Transaction Documents, and no proceeding shall have been commenced that may have the effect of prohibiting or materially adversely affecting any of the transactions contemplated by the Transaction Documents.

(e) ADVERSE CHANGES. Since the date of filing of the Company’s most recent SEC Document, no event that had or is reasonably likely to have a Material Adverse Effect has occurred.

(f) NO SUSPENSION OF TRADING IN OR DELISTING OF COMMON STOCK. The trading of the Common Stock shall not have been suspended by the SEC, the Principal Market or FINRA, or otherwise halted for any reason, and the Common Stock shall have been approved for listing on and shall not have been delisted from the Principal Market. In the event of a suspension, delisting, or halting for any reason, of the trading of the Common Stock, as contemplated by this Section 7.2(f), the Investor shall have the right to return to the Company any remaining amount of Put Shares associated with such Put, and the Purchase Price with respect to such Put shall be reduced accordingly.

(g) BENEFICIAL OWNERSHIP LIMITATION. The number of Put Shares then to be purchased by the Investor shall not exceed the number of such shares that, when aggregated with all other shares of Common Stock then owned by the Investor beneficially or deemed beneficially owned by the Investor, would result in the Investor owning more than the Beneficial Ownership Limitation (as defined below), as determined in accordance with Section 16 of the Exchange Act and the regulations promulgated thereunder. For purposes of this Section 7.2(g), in the event that the amount of Common Stock outstanding, as determined in accordance with Section 16 of the Exchange Act and the regulations promulgated thereunder, is greater on a Closing Date than on the date upon which the Put Notice associated with such Closing Date is given, the amount of Common Stock outstanding on such Closing Date shall govern for purposes of determining whether the Investor, when aggregating all purchases of Common Stock made pursuant to this Agreement, would own more than the Beneficial Ownership Limitation following such Closing Date. The “Beneficial Ownership Limitation” shall be 4.99% of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock issuable pursuant to a Put Notice.

(h) PENNY STOCK. The Common Stock shall not be deemed to be a “penny stock” as defined in SEC Rule 240.3a51-1 (17 CFR § 240.3a51-1). In the event that the Common Stock becomes a “penny stock” prior to the closing of a respective Put, the Investor shall have the right to return to the Company up to all of the Put Shares associated with such Put, and the Purchase Price with respect to such Put shall be reduced accordingly.

(i) NO KNOWLEDGE. The Company shall have no knowledge of any event more likely than not to have the effect of causing the Registration Statement to be suspended or otherwise ineffective (which event is more likely than not to occur within the fifteen (15) Trading Days following the Trading Day on which such Put Notice is deemed delivered).

(j) NO VIOLATION OF SHAREHOLDER APPROVAL REQUIREMENT. The issuance of the Put Shares shall not violate the shareholder approval requirements of the Principal Market, including but not limited to as contemplated by Section 2.4 of this Agreement.

(k) OFFICER’S CERTIFICATE. On the date of delivery of each Put Notice, the Investor shall have received the Closing Certificate executed by an executive officer of the Company and to the effect that all the conditions to such Closing shall have been satisfied as of the date of each such certificate.

(l) DWAC ELIGIBLE. The Common Stock must be DWAC Eligible and not subject to a “DTC chill.”

(m) SEC DOCUMENTS. All reports, schedules, registrations, forms, statements, information and other documents required to have been filed by the Company with the SEC pursuant to the reporting requirements of the Exchange Act shall have been filed with the SEC within the applicable time periods prescribed for such filings under the Exchange Act.

(n) RESERVE. The Company shall have reserved the Required Minimum for the Investor’s benefit under this Agreement, the Company shall have satisfied the reserve requirements with respect to all other contracts between the Company and Investor.

(o) MINIMUM PRICING. The lowest traded price of the Common Stock in the ten (10) Trading Days immediately preceding the respective Put Date must exceed $0.15 per share.

(p) BANKRUPTCY. Bankruptcy, insolvency, reorganization or liquidation proceedings or other proceedings, voluntary or involuntary, for relief under any bankruptcy law or any law for the relief of debtors shall not be instituted by or against the Company or any subsidiary of the Company (the “Bankruptcy Proceedings”), and the Company shall have no knowledge of any event more likely than not to have the effect of causing Bankruptcy Proceedings to arise. In the event of Bankruptcy Proceedings as contemplated by this Section 7.2(p), the Investor shall have the right to return to the Company any remaining amount of Put Shares associated with such Put, and the Purchase Price with respect to such Put shall be reduced accordingly.

ARTICLE VIII

LEGENDS

Section 8.1 NO RESTRICTIVE STOCK LEGEND. No restrictive stock legend shall be placed on the share certificates representing the Put Shares.

Section 8.2 INVESTOR’S COMPLIANCE. Nothing in this Article VIII shall affect in any way the Investor’s obligations hereunder to comply with all applicable securities laws upon the sale of the Common Stock.

ARTICLE IX

NOTICES; INDEMNIFICATION

Section 9.1 NOTICES. All notices, demands, requests, consents, approvals, and other communications required or permitted hereunder shall be in writing and, unless otherwise specified herein, shall be (a) personally served, (b) deposited in the mail, registered or certified, return receipt requested, postage prepaid, (c) delivered by reputable air courier service with charges prepaid, or (d) transmitted by hand delivery, telegram, or email as a PDF, addressed as set forth below or to such other address as such party shall have specified most recently by written notice given in accordance herewith. Any notice or other communication required or permitted to be given hereunder shall be deemed effective (i) upon hand delivery or delivery by email at the address designated below (if delivered on a business day during normal business hours where such notice is to be received), or the first business day following such delivery (if delivered other than on a business day during normal business hours where such notice is to be received) or (ii) on the second business day following the date of mailing by express courier service or on the fifth business day after deposited in the mail, in each case, fully prepaid, addressed to such address, or upon actual receipt of such mailing, whichever shall first occur.

The addresses for such communications shall be:

If to the Company:

Advent Technologies Holdings, Inc.

5637 La Ribera St., Suite A

Livermore, CA 94550

Email: gary.herman@advent.energy

Attention: Gary Herman

If to the Investor:

Hudson Global Ventures, LLC

Email: info@hudsonventuresllc.com

Either party hereto may from time to time change its address or email for notices under this Section 9.1 by giving at least ten (10) days’ prior written notice of such changed address to the other party hereto.

Section 9.2 INDEMNIFICATION. Each party (an “Indemnifying Party”) agrees to indemnify and hold harmless the other party along with its officers, directors, employees, and authorized agents, and each Person or entity, if any, who controls such party within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (an “Indemnified Party”) from and against any Damages, joint or several, and any action in respect thereof to which the Indemnified Party becomes subject to, resulting from, arising out of or relating to (i) any misrepresentation, breach of warranty or nonfulfillment of or failure to perform any covenant or agreement on the part of the Indemnifying Party contained in this Agreement, (ii) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or any post-effective amendment thereof or supplement thereto, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading, (iii) any untrue statement or alleged untrue statement of a material fact contained in any preliminary prospectus or contained in the final prospectus (as amended or supplemented, if the Company files any amendment thereof or supplement thereto with the SEC) or the omission or alleged omission to state therein any material fact necessary to make the statements made therein, in the light of the circumstances under which the statements therein were made, not misleading, or (iv) any violation or alleged violation by the Company of the Securities Act, the Exchange Act, any state securities law or any rule or regulation under the Securities Act, the Exchange Act or any state securities law, as such Damages are incurred, except to the extent such Damages result primarily from the Indemnified Party’s failure to perform any covenant or agreement contained in this Agreement or the Indemnified Party’s negligence, recklessness or bad faith in performing its obligations under this Agreement; provided, however, that the foregoing indemnity agreement shall not apply to any Damages of an Indemnified Party to the extent, but only to the extent, arising out of or based upon any untrue statement or alleged untrue statement or omission or alleged omission made by an Indemnifying Party in reliance upon and in conformity with written information furnished to the Indemnifying Party by the Indemnified Party expressly for use in the Registration Statement, any post-effective amendment thereof or supplement thereto, or any preliminary prospectus or final prospectus (as amended or supplemented).

Section 9.3 METHOD OF ASSERTING INDEMNIFICATION CLAIMS. All claims for indemnification by any Indemnified Party under Section 9.2 shall be asserted and resolved as follows:

(a) In the event any claim or demand in respect of which an Indemnified Party might seek indemnity under Section 9.2 is asserted against or sought to be collected from such Indemnified Party by a Person other than a party hereto or an affiliate thereof (a “Third Party Claim”), the Indemnified Party shall deliver a written notification, enclosing a copy of all papers served, if any, and specifying the nature of and basis for such Third Party Claim and for the Indemnified Party’s claim for indemnification that is being asserted under any provision of Section 9.2 against an Indemnifying Party, together with the amount or, if not then reasonably ascertainable, the estimated amount, determined in good faith, of such Third Party Claim (a “Claim Notice”) with reasonable promptness to the Indemnifying Party. If the Indemnified Party fails to provide the Claim Notice with reasonable promptness after the Indemnified Party receives notice of such Third Party Claim, the Indemnifying Party shall not be obligated to indemnify the Indemnified Party with respect to such Third Party Claim to the extent that the Indemnifying Party’s ability to defend has been prejudiced by such failure of the Indemnified Party. The Indemnifying Party shall notify the Indemnified Party as soon as practicable within the period ending thirty (30) calendar days following receipt by the Indemnifying Party of either a Claim Notice or an Indemnity Notice (as defined below) (the “Dispute Period”) whether the Indemnifying Party disputes its liability or the amount of its liability to the Indemnified Party under Section 9.2 and whether the Indemnifying Party desires, at its sole cost and expense, to defend the Indemnified Party against such Third Party Claim.

(i) If the Indemnifying Party notifies the Indemnified Party within the Dispute Period that the Indemnifying Party desires to defend the Indemnified Party with respect to the Third Party Claim pursuant to this Section 9.3(a), then the Indemnifying Party shall have the right to defend, with counsel reasonably satisfactory to the Indemnified Party, at the sole cost and expense of the Indemnifying Party, such Third Party Claim by all appropriate proceedings, which proceedings shall be vigorously and diligently prosecuted by the Indemnifying Party to a final conclusion or will be settled at the discretion of the Indemnifying Party (but only with the consent of the Indemnified Party in the case of any settlement that provides for any relief other than the payment of monetary damages or that provides for the payment of monetary damages as to which the Indemnified Party shall not be indemnified in full pursuant to Section 9.2, with such consent not to be unreasonably withheld or delayed). The Indemnifying Party shall have full control of such defense and proceedings, including any compromise or settlement thereof; provided, however, that the Indemnified Party may, at the sole cost and expense of the Indemnified Party, at any time prior to the Indemnifying Party’s delivery of the notice referred to in the first sentence of this clause (i), file any motion, answer or other pleadings or take any other action that the Indemnified Party reasonably believes to be necessary or appropriate to protect its interests; and provided, further, that if requested by the Indemnifying Party, the Indemnified Party will, at the sole cost and expense of the Indemnifying Party, provide reasonable cooperation to the Indemnifying Party in contesting any Third Party Claim that the Indemnifying Party elects to contest. The Indemnified Party may participate in, but not control, any defense or settlement of any Third Party Claim controlled by the Indemnifying Party pursuant to this clause (i), and except as provided in the preceding sentence, the Indemnified Party shall bear its own costs and expenses with respect to such participation. Notwithstanding the foregoing, the Indemnified Party may takeover the control of the defense or settlement of a Third Party Claim at any time if it irrevocably waives its right to indemnity under Section 9.2 with respect to such Third Party Claim.

(ii) If the Indemnifying Party fails to notify the Indemnified Party within the Dispute Period that the Indemnifying Party desires to defend the Third Party Claim pursuant to Section 9.3(a), or if the Indemnifying Party gives such notice but fails to prosecute vigorously and diligently or settle the Third Party Claim, or if the Indemnifying Party fails to give any notice whatsoever within the Dispute Period, then the Indemnified Party shall have the right to defend, at the sole cost and expense of the Indemnifying Party, the Third Party Claim by all appropriate proceedings, which proceedings shall be prosecuted by the Indemnified Party in a reasonable manner and in good faith or will be settled at the discretion of the Indemnified Party (with the consent of the Indemnifying Party, which consent will not be unreasonably withheld or delayed). The Indemnified Party will have full control of such defense and proceedings, including any compromise or settlement thereof; provided, however, that if requested by the Indemnified Party, the Indemnifying Party will, at the sole cost and expense of the Indemnifying Party, provide reasonable cooperation to the Indemnified Party and its counsel in contesting any Third Party Claim which the Indemnified Party is contesting. Notwithstanding the foregoing provisions of this clause (ii), if the Indemnifying Party has notified the Indemnified Party within the Dispute Period that the Indemnifying Party disputes its liability or the amount of its liability hereunder to the Indemnified Party with respect to such Third Party Claim and if such dispute is resolved in favor of the Indemnifying Party in the manner provided in clause (iii) below, the Indemnifying Party will not be required to bear the costs and expenses of the Indemnified Party’s defense pursuant to this clause (ii) or of the Indemnifying Party’s participation therein at the Indemnified Party’s request, and the Indemnified Party shall reimburse the Indemnifying Party in full for all reasonable costs and expenses incurred by the Indemnifying Party in connection with such litigation. The Indemnifying Party may participate in, but not control, any defense or settlement controlled by the Indemnified Party pursuant to this clause (ii), and the Indemnifying Party shall bear its own costs and expenses with respect to such participation.

(iii) If the Indemnifying Party notifies the Indemnified Party that it does not dispute its liability or the amount of its liability to the Indemnified Party with respect to the Third Party Claim under Section 9.2 or fails to notify the Indemnified Party within the Dispute Period whether the Indemnifying Party disputes its liability or the amount of its liability to the Indemnified Party with respect to such Third Party Claim, the amount of Damages specified in the Claim Notice shall be conclusively deemed a liability of the Indemnifying Party under Section 9.2 and the Indemnifying Party shall pay the amount of such Damages to the Indemnified Party on demand. If the Indemnifying Party has timely disputed its liability or the amount of its liability with respect to such claim, the Indemnifying Party and the Indemnified Party shall proceed in good faith to negotiate a resolution of such dispute; provided, however, that if the dispute is not resolved within thirty (30) days after the Claim Notice, the Indemnifying Party shall be entitled to institute such legal action as it deems appropriate.

(b) In the event any Indemnified Party should have a claim under Section 9.2 against the Indemnifying Party that does not involve a Third Party Claim, the Indemnified Party shall deliver a written notification of a claim for indemnity under Section 9.2 specifying the nature of and basis for such claim, together with the amount or, if not then reasonably ascertainable, the estimated amount, determined in good faith, of such claim (an “Indemnity Notice”) with reasonable promptness to the Indemnifying Party. The failure by any Indemnified Party to give the Indemnity Notice shall not impair such party’s rights hereunder except to the extent that the Indemnifying Party demonstrates that it has been irreparably prejudiced thereby. If the Indemnifying Party notifies the Indemnified Party that it does not dispute the claim or the amount of the claim described in such Indemnity Notice or fails to notify the Indemnified Party within the Dispute Period whether the Indemnifying Party disputes the claim or the amount of the claim described in such Indemnity Notice, the amount of Damages specified in the Indemnity Notice will be conclusively deemed a liability of the Indemnifying Party under Section 9.2 and the Indemnifying Party shall pay the amount of such Damages to the Indemnified Party on demand. If the Indemnifying Party has timely disputed its liability or the amount of its liability with respect to such claim, the Indemnifying Party and the Indemnified Party shall proceed in good faith to negotiate a resolution of such dispute; provided, however, that if the dispute is not resolved within thirty (30) days after the Claim Notice, the Indemnifying Party shall be entitled to institute such legal action as it deems appropriate.

(c) The Indemnifying Party agrees to pay the Indemnified Party, promptly upon the receipt of a final non-appealable order of any court of competent jurisdiction which may be issued, together with a certificate of the Indemnified Party to the effect that such order is final and non-appealable and from a court of jurisdiction having proper authority and the written payment instructions of the Indemnified Party to effectuate such order.

(d) The indemnity provisions contained herein shall be in addition to (i) any cause of action or similar rights of the Indemnified Party against the Indemnifying Party or others, and (ii) any liabilities the Indemnifying Party may be subject to.

ARTICLE X

MISCELLANEOUS

Section 10.1 GOVERNING LAW; JURISDICTION; JURY TRIAL. All questions concerning the construction, validity, enforcement and interpretation of this Agreement and the other Transaction Documents shall be governed by the internal laws of the State of Delaware, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of Delaware or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Delaware. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the State of Delaware, County of New Castle, for the adjudication of any dispute hereunder or under the other Transaction Documents or in connection herewith or therewith,

or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof to such party at the address for such notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

Section 10.2 PAYMENT SET ASIDE. Further, to the extent that the (i) Company makes a payment or payments to the Investor pursuant to this Agreement or any other agreement, certificate, instrument or document contemplated hereby or thereby, or (ii) the Investor enforces or exercises its rights pursuant to this Agreement or any other agreement, certificate, instrument or document contemplated hereby or thereby (including but not limited to the sale of the Securities), and such payment or payments or the proceeds of such enforcement or exercise or any part thereof (including but not limited to the sale of the Securities) are for any reason (i) subsequently invalidated, declared to be fraudulent or preferential, set aside, recovered from, or disgorged by the Investor, or (ii) are required to be refunded, repaid or otherwise restored to the Company, a trustee, receiver, government entity, or any other person or entity under any law (including, without limitation, any bankruptcy law, foreign, state or federal law, common law or equitable cause of action), then (i) to the extent of any such restoration the obligation or part thereof originally intended to be satisfied shall be revived and continued in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred and (ii) the Company shall immediately pay to the Investor a dollar amount equal to the amount that was for any reason (i) subsequently invalidated, declared to be fraudulent or preferential, set aside, recovered from, or disgorged by the Investor, or (ii) required to be refunded, repaid or otherwise restored to the Company, a trustee, receiver, government entity, or any other person or entity under any law (including, without limitation, any bankruptcy law, foreign, state or federal law, common law or equitable cause of action).

Section 10.3 ASSIGNMENT. This Agreement shall be binding upon and inure to the benefit of the Company and the Investor and their respective successors. Neither this Agreement nor any rights of the Investor or the Company hereunder may be assigned by either party to any other Person.

Section 10.4 NO THIRD PARTY BENEFICIARIES. This Agreement is intended for the benefit of the Company and the Investor and their respective successors, and is not for the benefit of, nor may any provision hereof be enforced by, any other Person, except as set forth in Section 9.3.

Section 10.5 TERMINATION. The Company may terminate this Agreement at any time by written notice to the Investor, except during any Valuation Period or at any time that the Investor holds any of the Put Shares. In addition, this Agreement shall automatically terminate at the end of the Commitment Period. Notwithstanding anything in this Agreement to the contrary, the provisions of Articles III, IV, VI, and IX of this Agreement, and the agreements and covenants of the Company and the Investor set forth in Article X and Section 6.3 of this Agreement, shall survive the termination of this Agreement.

Section 10.6 ENTIRE AGREEMENT. The Transaction Documents, together with the exhibits and schedules thereto, contain the entire understanding of the Company and the Investor with respect to the matters covered herein and therein and supersede all prior agreements and understandings, oral or written, with respect to such matters, which the Parties acknowledge have been merged into such documents, exhibits and schedules.

Section 10.7 FEES AND EXPENSES. Except as expressly set forth in the Transaction Documents or any other writing to the contrary, each party shall pay the fees and expenses of its advisers, counsel, accountants and other experts, if any, and all other expenses incurred by such party incident to the negotiation, preparation, execution, delivery and performance of this Agreement. The Company shall pay all Transfer Agent fees (including, without limitation, any fees required for same-day processing of any instruction letter delivered by the Company), stamp taxes and other taxes and duties levied in connection with the delivery of any Securities to the Investor. In addition, the Company shall pay $15,000.00 to legal counsel of the Investor on the date of this Agreement for Investor’s expenses relating to the preparation of this Agreement.

Section 10.8 COUNTERPARTS. This Agreement may be executed in multiple counterparts, each of which may be executed by less than all of the Parties and shall be deemed to be an original instrument which shall be enforceable against the Parties actually executing such counterparts and all of which together shall constitute one and the same instrument. This Agreement may be delivered to the other Parties hereto by email of a copy of this Agreement bearing the signature of the Parties so delivering this Agreement.

Section 10.9 SEVERABILITY. In the event that any provision of this Agreement becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Agreement shall continue in full force and effect without said provision; provided that such severability shall be ineffective if it materially changes the economic benefit of this Agreement to any party.

Section 10.10 FURTHER ASSURANCES. Each party shall do and perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

Section 10.11 NO STRICT CONSTRUCTION. The language used in this Agreement will be deemed to be the language chosen by the Parties to express their mutual intent, and no rules of strict construction will be applied against any party.

Section 10.12 EQUITABLE RELIEF. The Company recognizes that in the event that it fails to perform, observe, or discharge any or all of its obligations under this Agreement, any remedy at law may prove to be inadequate relief to the Investor. The Company therefore agrees that the Investor shall be entitled to temporary and permanent injunctive relief in any such case without the necessity of proving actual damages.

Section 10.13 TITLE AND SUBTITLES. The titles and subtitles used in this Agreement are used for the convenience of reference and are not to be considered in construing or interpreting this Agreement.

Section 10.14 AMENDMENTS; WAIVERS. No provision of this Agreement may be amended or waived by the Parties from and after the date that is one (1) Trading Day immediately preceding the initial filing of the Registration Statement with the SEC. Subject to the immediately preceding sentence, (i) no provision of this Agreement may be amended other than by a written instrument signed by both Parties hereto and (ii) no provision of this Agreement may be waived other than in a written instrument signed by the party against whom enforcement of such waiver is sought. No failure or delay in the exercise of any power, right or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such power, right or privilege preclude other or further exercise thereof or of any other right, power or privilege.

Section 10.15 PUBLICITY. The Company and the Investor shall consult with each other in issuing any press releases or otherwise making public statements with respect to the transactions contemplated hereby and no party shall issue any such press release or otherwise make any such public statement, other than as required by law, without the prior written consent of the other Parties, which consent shall not be unreasonably withheld or delayed, except that no prior consent shall be required if such disclosure is required by law, in which such case the disclosing party shall provide the other party with prior notice of such public statement. Notwithstanding the foregoing, the Company shall not publicly disclose the name of the Investor without the prior written consent of the Investor, except to the extent required by law. The Investor acknowledges that this Agreement and all or part of the Transaction Documents may be deemed to be “material contracts,” as that term is defined by Item 601(b)(10) of Regulation S-K, and that the Company may therefore be required to file such documents as exhibits to reports or registration statements filed under the Securities Act or the Exchange Act. The Investor further agrees that the status of such documents and materials as material contracts shall be determined solely by the Company, in consultation with its counsel.

[Signature Page Follows]

IN WITNESS WHEREOF, the Parties have caused this Agreement to be duly executed by their respective officers thereunto duly authorized as of the day and year first above written.

	THE COMPANY:

	ADVENT TECHNOLOGIES HOLDINGS, INC.

	By:
	Name:	Gary Herman
	Title:	Chief Executive Officer

	INVESTOR:

	HUDSON GLOBAL VENTURES, LLC

	By:
	Name:	Seth Ahdoot
	Title:	Member

[Signature Page to equity purchase agreement]

EXHIBIT A

FORM OF PUT NOTICE

TO: HUDSON GLOBAL VENTURES, LLC

DATE: ____________________

We refer to the equity purchase agreement, dated August 14, 2025 (the “Agreement”), entered into by and between Advent Technologies Holdings, Inc. and you. Capitalized terms defined in the Agreement shall, unless otherwise defined herein, have the same meaning when used herein.

We hereby:

1) Give you notice that we require you to purchase ____________ Put Shares pursuant to the Agreement; and

2) The Initial Purchase Price pursuant to the Agreement is ____________; and

2) Certify that, as of the date hereof, the conditions set forth in Section 7.2 of the Agreement are satisfied.

	ADVENT TECHNOLOGIES HOLDINGS, INC.

	By:
	Name:	Gary Herman
	Title:	Chief Executive Officer

A-1

EXHIBIT B

FORM OF OFFICER’S CERTIFICATE

OF ADVENT TECHNOLOGIES HOLDINGS, INC.

Pursuant to Section 7.2(k) of that certain equity purchase agreement, dated August 14, 2025 (the “Agreement”), by and between Advent Technologies Holdings, Inc. (the “Company”) and Hudson Global Ventures, LLC (the “Investor”), the undersigned, in his capacity as Chief Executive Officer of the Company, and not in his individual capacity, hereby certifies, as of the date hereof (such date, the “Condition Satisfaction Date”), the following:

1. The representations and warranties of the Company are true and correct in all material respects as of the Condition Satisfaction Date as though made on the Condition Satisfaction Date (except for representations and warranties specifically made as of a particular date) with respect to all periods, and as to all events and circumstances occurring or existing to and including the Condition Satisfaction Date, except for any conditions which have temporarily caused any representations or warranties of the Company set forth in the Agreement to be incorrect and which have been corrected with no continuing impairment to the Company or the Investor; and

2. All of the conditions precedent to the obligation of the Investor to purchase Put Shares set forth in the Agreement, including but not limited to Section 7.2 of the Agreement, have been satisfied as of the Condition Satisfaction Date.

Capitalized terms used herein shall have the meanings set forth in the Agreement unless otherwise defined herein.

IN WITNESS WHEREOF, the undersigned has hereunto affixed his hand as of the ________, 20__.

	By:
	Name:	Gary Herman
	Title:	Chief Executive Officer

B-1

ADVENT TECHNOLOGIES HOLDINGS, INC. 8-K