This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into this ___ day of _______, 2021, by and between CleanTech Acquisition Corp, a Delaware corporation (the “Company”), and the undersigned (“Subscriber” or “you”). Defined terms used but not otherwise defined herein shall have the respective meanings ascribed thereto in the Transaction Agreement (as defined below).

WHEREAS, the Company and the other parties named therein propose to enter into an agreement and plan of merger (as it may be amended, the “Transaction Agreement”), pursuant to which, among other things, a wholly-owned subsidiary of the Company will merge with and into Nauticus Robotics, Inc., a Texas corporation (“Nauticus”), and Nauticus will continue as the surviving corporation and as a wholly-owned subsidiary of the Company (the “Transaction”);

WHEREAS, in connection with and contingent on the closing of the Transaction (the “Transaction Closing”), as contemplated by the Transaction Agreement, and pursuant to the terms and conditions hereof, Subscriber desires to subscribe for and purchase from the Company that number of the Company’s common stock, par value $0.0001 per share (the “Common Stock”), set forth on the signature page hereto for a purchase price of $10.00 per share (the “Per Share Price”), or the aggregate purchase price set forth on the signature page hereto (the “Purchase Price”), and the Company desires to issue and sell to Subscriber at the Closing the Securities (as defined below) in consideration of the payment of the Purchase Price by or on behalf of Subscriber to the Company on or prior to the Closing (as defined below); and

WHEREAS, in connection with the Transaction, certain other institutional “accredited investors” (within the meaning of Rule 501(a) under the Securities Act of 1933, as amended (the “Securities Act”)) or “qualified institutional buyers” (within the meaning of Rule 144A under the Securities Act) (the “Other Subscribers”) are entering into separate subscription agreements with the Company (“Other Subscription Agreements”) substantially similar to this Subscription Agreement, pursuant to which such Other Subscribers, and Subscriber pursuant to this Subscription Agreement, have agreed, severally and not jointly, to purchase on the closing date of the Transaction (the “Closing Date”) an aggregate of up to 10,000,000 shares of Common Stock at the Per Share Price (the “Offering”).

NOW, THEREFORE, in consideration of the foregoing and the mutual representations, warranties and covenants, and pursuant to the terms and subject to the conditions, herein contained, and intending to be legally bound hereby, the parties hereto hereby agree as follows:

1. Subscription. Subject to the terms and conditions hereof, Subscriber hereby subscribes for and agrees to purchase from the Company at the Closing, and the Company hereby agrees to issue and sell to Subscriber, at the Closing, upon the payment of the Purchase Price, that number of shares of Common Stock set forth on the signature page hereto (the “Securities”) on the terms and conditions set forth herein (such subscription and issuance, the “Subscription”).

2.1 Subscriber’s Representations, Warranties and Agreements. To induce the Company to issue the Securities to Subscriber, Subscriber hereby represents and warrants to the Company and agrees with the Company as follows:

2.1.1 Subscriber has been duly formed or incorporated and is validly existing and in good standing under the laws of its jurisdiction of incorporation or formation, with power and authority to enter into, deliver and perform its obligations under this Subscription Agreement. If Subscriber is an individual, Subscriber has the authority to enter into, deliver and perform Subscriber’s obligations under this Subscription Agreement.

2.1.2 This Subscription Agreement has been duly authorized, executed and delivered by Subscriber. If Subscriber is an individual, the signature on this Subscription Agreement is genuine, and Subscriber has legal competence and capacity to execute the same. This Subscription Agreement constitutes a valid and binding obligation of Subscriber, enforceable against Subscriber in accordance with its terms, except as may be limited or otherwise affected by (i) bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium or other laws relating to or affecting the rights of creditors generally, and (ii) principles of equity, whether considered at law or equity.

2.1.3 Assuming the accuracy of the Company’s representations andwarranties as set forth in Section 2.2 hereof, the execution, delivery and performance by Subscriber of this Subscription Agreement and the consummation of the transactions contemplated herein do not and will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any of the property or assets of Subscriber or any of its subsidiaries pursuant to the terms of any indenture, mortgage, deed of trust, loan agreement, lease, license or other agreement or instrument to which Subscriber is a party or by which Subscriber is bound or to which any of the property or assets of Subscriber is subject, which would reasonably be expected to have a material adverse effect on the business, properties, financial condition, stockholders’ equity or results of operations of Subscriber and its subsidiaries, taken as a whole, or materially and adversely affect the legal authority or ability of Subscriber to comply in all material respects with the terms of this Subscription Agreement (a “Subscriber Material Adverse Effect”); (ii) if Subscriber is not an individual, result in any violation of the provisions of the organizational documents of Subscriber or any of its subsidiaries in any material respect; or (iii) result in any violation of any statute or any judgment, order, rule or regulation of any court or government or governmental, tribunal, judicial, administrative federal, state, local, or foreign or any agency, bureau, board, commission instrumentality or authority thereof, including any state’s attorney general or any court or arbitrator (public or private) (“Authority”), having jurisdiction over Subscriber or any of its subsidiaries or any of their respective properties that would reasonably be expected to have a Subscriber Material Adverse Effect.

2.1.6 Subscriber understands and agrees that Subscriber is purchasing the Securities directly from the Company. Subscriber further acknowledges that there have been no representations, warranties, covenants and agreements made to Subscriber by the Company or any of its officers or directors, expressly or by implication, other than those representations, warranties, covenants and agreements included in this Subscription Agreement, and Subscriber is not relying on any representations, warranties or covenants other than those expressly set forth in this Subscription Agreement.

2.1.7 Subscriber represents and warrants that (i) it is not a Benefit Plan Subscriber as contemplated by the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), or (ii) its acquisition and holding of the Securities will not constitute or result in a non-exempt prohibited transaction under Section 406 of ERISA, Section 4975 of the Internal Revenue Code of 1986, as amended, or any applicable similar law.

2.1.8 In making its decision to purchase the Securities, Subscriber represents that it has relied solely upon independent investigation made by Subscriber and the representations, warranties, and covenants of the Company contained in this Subscription Agreement. Subscriber acknowledges and agrees that Subscriber has received and has had an adequate opportunity to review, such financial and other information as Subscriber deems necessary in order to make an investment decision with respect to the Securities and made its own assessment and is satisfied concerning the relevant tax and other economic considerations relevant to Subscriber’s investment in the Securities. Without limiting the generality of the foregoing, Subscriber acknowledges that it has had the opportunity to review the documents provided to Subscriber by the Company, including (collectively, the “Disclosure Documents”): (i) the final prospectus of the Company, dated as of July 16, 2021 and filed with the Securities and Exchange Commission (the “Commission”) (File Nos. 333-256578) (the “Prospectus”), (ii) each SEC Document (as defined below) through the date of this Subscription Agreement, (iii) the Transaction Agreement, a copy of which will be filed by the Company with the Commission and (iv) the investor presentation by the Company and Nauticus (the “Investor Presentation”), a copy of which will be furnished by the Company to the Commission. Subscriber represents and agrees that Subscriber and its professional advisor(s), if any, have had the full opportunity to ask the Company’s management questions, receive such answers and obtain such information as Subscriber and its professional advisor(s), if any, have deemed necessary to make an investment decision with respect to the Securities. The Subscriber further acknowledges that the information contained in the Disclosure Documents is subject to change, and that any changes to the information contained in the Disclosure Documents, including any changes based on updated information or changes in terms of the Transaction, shall in no way affect Subscriber’s obligation to purchase the Securities hereunder, except as otherwise provided herein, and that, in purchasing the Securities, Subscriber is not relying upon any projections contained in the Investor Presentation. Subscriber acknowledges and agrees that (i) it has not relied on any statements or other information provided by Coastal Equities, Inc. (the “Placement Agent”) or any of the Placement Agent’s affiliates with respect to its decision to invest in the Securities, including information related to the Company, Nauticus, the Securities and the offer and sale of the Securities, (ii) neither the Placement Agent, nor any of the Placement Agent’s affiliates has provided Subscriber with any information or advice with respect to the Securities, nor is such information or advice necessary or desired, and (iii) neither the Placement Agent nor any of the Placement Agent’s affiliates has prepared any disclosure or offering document in connection with the offer and sale of the Securities. Neither the Placement Agent nor any of the Placement Agent’s affiliates has made or makes any representation as to the Company, Nauticus or the quality or value of the Securities and the Placement Agent and its affiliates may have acquired non-public information with respect to the Company which Subscriber agrees need not be provided to it. Subscriber agrees the Placement Agent shall not be liable to Subscriber for any action heretofore or hereafter taken or omitted to be taken by it in connection with Subscriber’s purchase of the Securities.

2.1.9 Subscriber became aware of this offering of the Securities solely (a) by means of direct contact from the Placement Agent, the Company, Nauticus or a representative of the Placement Agent, the Company or Nauticus, or (b) directly from the Company as a result of a pre-existing, substantial relationship with the Company, and the Securities were offered to Subscriber solely by direct contact between Subscriber and either the Placement Agent or the Company. Subscriber did not become aware of this offering of the Securities, nor were the Securities offered to Subscriber, by any other means. Subscriber acknowledges that the Placement Agent has not acted as its financial advisor or fiduciary. Subscriber acknowledges that the Company represents and warrants that the Securities (i) were not offered by any form of general solicitation or general advertising and (ii) are not being offered in a manner involving a public offering under, or in a distribution in violation of, the Securities Act, or any state securities laws.

2.1.10 Subscriber acknowledges that it is aware that there are substantial risks incident to the purchase and ownership of the Securities. Subscriber has such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of an investment in the Securities, and Subscriber has sought such accounting, legal and tax advice as Subscriber has considered necessary to make an informed investment decision. Subscriber understands and acknowledges that it (i) is a sophisticated investor, experienced in investing in private equity transactions and capable of evaluating investment risks independently, both in general and with regard to all transactions and investment strategies involving a security or securities and (ii) has exercised independent judgment in evaluating its participation in the purchase of the Securities.

2.1.11 Subscriber represents and acknowledges that Subscriber has such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of the investment in the Securities, has analyzed and fully considered the risks of an investment in the Securities and determined that the Securities are a suitable investment for Subscriber and that Subscriber is able at this time and in the foreseeable future to bear the economic risk of a total loss of Subscriber’s investment in the Company. Subscriber further acknowledges specifically that a possibility of total loss of investment exists.

2.1.12 Subscriber understands and agrees that no federal or state agency has passed upon or endorsed the merits of the offering of the Securities or made any findings or determination as to the fairness of this investment.

2.1.13 Subscriber represents and warrants that Subscriber is not (i) a person or entity named on the List of Specially Designated Nationals and Blocked Persons, the Executive Order 13599 List, the Foreign Sanctions Evaders List, or the Sectoral Sanctions Identification List, each of which is administered by the U.S. Treasury Department’s Office of Foreign Assets Control (“OFAC”) or in any Executive Order issued by the President of the United States and administered by OFAC (“OFAC List”), or a person or entity prohibited by any OFAC sanctions program, (ii) owned or controlled by, or acting on behalf of, a person, that is named on an OFAC List; (iii) organized, incorporated, established, located, resident or born in, or a citizen, national, or the government, including any political subdivision, agency, or instrumentality thereof, of any country or territory embargoed or subject to substantial trade restrictions by the United States; (iv) a Designated National as defined in the Cuban Assets Control Regulations, 31 C.F.R. Part 515, or (v) a non-U.S. shell bank or providing banking services indirectly to a non-U.S. shell bank (collectively, a “Prohibited Investor”). Subscriber agrees to provide law enforcement agencies, if requested thereby, such records as required by applicable law, provided that Subscriber is permitted to do so under applicable law. Subscriber represents that if it is a financial institution subject to the Bank Secrecy Act (31 U.S.C. Section 5311 et seq.) (the “BSA”), as amended by the USA PATRIOT Act of 2001 (the “PATRIOT Act”), and its implementing regulations (collectively, the “BSA/PATRIOT Act”), that Subscriber, directly or indirectly through a third party administrator, maintains policies and procedures reasonably designed to comply with applicable obligations under the BSA/PATRIOT Act. Subscriber also represents that, to the extent required, it, directly or indirectly through a third party administrator, maintains policies and procedures reasonably designed for the screening of its investors against the OFAC sanctions programs, including the OFAC List, and to otherwise ensure compliance with OFAC-administered sanctions programs. Subscriber further represents and warrants that, to the extent required, it, directly or indirectly through a third-party administrator, maintains policies and procedures reasonably designed to ensure that the funds held by Subscriber and used to purchase the Securities were legally derived.

2.1.14 On the date the Purchase Price will be required to be funded pursuant to Section 3.1, Subscriber will have sufficient immediately available funds to pay the Purchase Price pursuant to Section 3.1.

2.1.15 Subscriber represents that no disqualifying event described in Rule 506(d)(1)(i)-(viii) under the Securities Act (a “Disqualification Event”) is applicable to Subscriber or any of its Rule 506(d) Related Parties (as defined below), except, if applicable, for a Disqualification Event as to which Rule 506(d)(2)(ii) or (iii) or (d)(3) is applicable. Subscriber hereby agrees that it shall notify the Company promptly in writing in the event a Disqualification Event becomes applicable to Subscriber or any of its Rule 506(d) Related Parties, except, if applicable, for a Disqualification Event as to which Rule 506(d)(2)(ii) or (iii) or (d)(3) is applicable. For purposes of this Section 2.1.15, “Rule 506(d) Related Party” shall mean a person or entity that is a direct beneficial owner of Subscriber’s securities for purposes of Rule 506(d) under the Securities Act.

2.1.16 No broker, finder or other financial consultant has acted on behalf of Subscriber in connection with this Subscription Agreement or the transactions contemplated hereby in such a way as to create any liability on the Company.

2.1.17 Except as expressly disclosed in a Schedule 13D or Schedule 13G (or amendments thereto) filed by such Subscriber with the Commission with respect to the beneficial ownership of the Company’s Common Stock prior to the date hereof, Subscriber is not currently (and at all times through Closing will refrain from being or becoming) a member of a “group” (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or any successor provision) acting for the purpose of acquiring, holding or disposing of equity securities of the Company (within the meaning of Rule 13d-5(b)(1) under the Exchange Act).

2.1.18 No foreign person (as defined in 31 C.F.R. Part 800.224) in which the national or subnational governments of a single foreign state have a substantial interest (as defined in 31 C.F.R. Part 800.244) will acquire a substantial interest in the Company as a result of the purchase by such Subscriber and sale of the Securities hereunder such that a declaration to the Committee on Foreign Investment in the United States would be mandatory under 31 C.F.R. Part 800.401, and no foreign person will have control (as defined in 31 C.F.R. Part 800.208) over the Company from and after the Closing as a result of the purchase by such Subscriber and sale of the Securities hereunder.

2.2 Company’s Representations, Warranties and Agreements. To induce Subscriber to purchase the Securities, the Company hereby represents and warrants to Subscriber and agrees with Subscriber as follows:

2.2.1 The Company has been duly incorporated and is validly existing as a corporation in good standing under the Delaware General Corporation Law (the “DGCL”), with the requisite corporate power and authority to own, lease and operate its properties and conduct its business as presently conducted and to enter into, deliver and perform its obligations under this Subscription Agreement.

2.2.2 The Securities have been duly authorized and, when issued and delivered to Subscriber against full payment for the Securities in accordance with the terms of this Subscription Agreement, and registered with the Company’s transfer agent, the Securities will be validly issued, fully paid, non-assessable and free and clear of any liens or other restrictions whatsoever (other than those arising under state or federal securities laws or as set forth herein), and will not be issued in violation of or subject to any preemptive or similar rights created under the Company’s amended and restated certificate of incorporation or bylaws or under the DGCL or any agreement or other instrument to which the Company is a party or by which it is otherwise bound.

2.2.3 This Subscription Agreement has been duly authorized, executed and delivered by the Company and is a valid and binding obligation of the Company, enforceable against it in accordance with its terms, except as may be limited or otherwise affected by (i) bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium or other laws relating to or affecting the rights of creditors generally, and (ii) principles of equity, whether considered at law or equity.

2.2.4 The execution, delivery and performance of this Subscription Agreement (including compliance by the Company with all of the provisions hereof), the issuance and sale of the Securities and the consummation of the certain other transactions contemplated herein will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any of the property or assets of the Company pursuant to the terms of any indenture, mortgage, deed of trust, loan agreement, lease, license or other agreement or instrument to which the Company is a party or by which the Company is bound or to which any of the property or assets of the Company is subject, which would, individually or in the aggregate, reasonably be expected to have a material adverse effect on the business, properties, assets, liabilities, operations, financial condition, stockholders’ equity or results of operations of the Company or materially and adversely affect the validity of the Securities or the legal authority or ability of the Company to comply in all material respects with the terms of this Subscription Agreement (a “Material Adverse Effect”); (ii) result in any violation of the provisions of the organizational documents of the Company in any material respect; or (iii) result in any violation of any statute or any judgment, order, rule or regulation of any Authority having jurisdiction over the Company or any of its properties that would reasonably be expected to have a Material Adverse Effect.

2.2.5 Neither the Company, nor any person acting on its behalf has, directly or indirectly, made any offers or sales of any Company security or solicited any offers to buy any security, under circumstances that would adversely affect reliance by the Company on Section 4(a)(2) of the Securities Act for the exemption from registration for the transactions contemplated hereby or would require registration of the issuance or sale of the Securities under the Securities Act.

2.2.6 Neither the Company nor any person acting on its behalf has conducted any general solicitation or general advertising (as those terms are used in Regulation D under the Securities Act) in connection with the offer or sale of any of the Securities and neither the Company, nor any person acting on its behalf has offered any of the Securities in a manner involving any public offering under, or in a distribution in violation of, the Securities Act or any state securities laws.

2.2.7 The Company has not taken any steps to seek protection pursuant to any law or statute relating to bankruptcy, insolvency, reorganization, receivership, liquidation, administration or winding up or failed to pay its debts when due, nor does the Company have any knowledge or reason to believe that any of their respective creditors intend to initiate involuntary bankruptcy proceedings or seek to commence an administration.

2.2.8 As of the date of this Subscription Agreement, the authorized capital stock of the Company consists of 200,000,000 shares of Common Stock and 1,000,000 shares of preferred stock, par value $0.0001 per share, of which 21,562,500 shares of Common Stock are issued and outstanding as of the date hereof and no preferred shares are issued and outstanding. 15,800,000 shares of Common Stock are reserved for issuance upon the exercise of the Company’s warrants (“Warrants”). All (i) issued and outstanding shares of Common Stock have been duly authorized and validly issued, are fully paid and are non-assessable and are not subject to preemptive rights and (ii) outstanding Warrants have been duly authorized and validly issued, are fully paid and are not subject to preemptive rights. As of the date hereof, except as set forth above pursuant to the organizational documents of the Company, the Other Subscription Agreements, the Transaction Agreement and any promissory notes issued by the Company’s sponsor or its affiliate to the Company for working capital purposes as described in the SEC Documents (“Sponsor Loans”), there are no outstanding options, warrants or other rights to subscribe for, purchase or acquire from the Company any shares of Common Stock or other equity interests in the Company, or securities convertible into or exchangeable or exercisable for such equity interests. As of the date hereof, other than any subsidiary created for purposes of the Transaction, the Company has no subsidiaries and does not own, directly or indirectly, interests or investments (whether equity or debt) in any person, whether incorporated or unincorporated. There are no stockholder agreements, voting trusts or other agreements or understandings to which the Company is a party or by which it is bound relating to the voting of any securities of the Company, other than (A) as set forth in the Company’s filings with the Commission, together with any amendments, restatements or supplements thereto (the “SEC Documents”) and (B) as contemplated by the Transaction Agreement. Except as disclosed in the SEC Documents, the Company has no outstanding indebtedness and will not have any outstanding long-term indebtedness as of immediately prior to the Closing (excluding any Sponsor Loans).

2.2.9 Assuming the accuracy of Subscriber’s representations and warranties set forth in this Subscription Agreement, no registration under the Securities Act is required for the offer and sale of the Common Stock by the Company to Subscriber and the Common Stock is not being offered in a manner involving a public offering under, or in a distribution in violation of, the Securities Act or any state securities laws.

2.2.10 Except as to the accounting relating to the Warrants, the Company has made all filings required to be filed by it with the Commission and, as of their respective dates, each of the SEC Documents complied in all material respects with the requirements of the Securities Act and the Exchange Act, and the rules and regulations of the Commission promulgated thereunder, 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 the light of the circumstances under which they were made, not misleading; provided, that the Company makes no such representation or warranty with respect to any information relating to Nauticus or any of its affiliates included in any SEC Document or filed as an exhibit thereto. Except as to the accounting relating to the Warrants, each of the financial statements of the Company included in the SEC Documents comply in all material respects with applicable accounting requirements and the rules and regulations of the Commission with respect thereto as in effect at the time of filing and fairly present in all material respects the financial position of the Company as of and for 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, year-end audit adjustments. As of the date hereof, there are no outstanding or unresolved comments in comment letters from the Staff of the Commission with respect to any of the SEC Documents.

2.2.11 Other than the Other Subscription Agreements, the Transaction Agreement and any other agreement expressly contemplated by the Transaction Agreement, the Company has not entered into any side letter or similar agreement with any Other Subscriber or any other investor in connection with such Other Subscriber’s or investor’s investment in the Company. No Other Subscription Agreement includes a price per Security different from this Subscription Agreement or other terms, rights or conditions that are more advantageous (economically or otherwise) in any material respect to any such Other Subscriber than Subscriber hereunder, and such Other Subscription Agreements have not been amended or modified in any material respect following the date of this Subscription Agreement in any manner that materially benefits the Other Subscriber thereunder unless Subscriber has been granted the same benefits.

2.2.12 The Company is not, and immediately after receipt of payment for the Securities will not be, an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

2.2.13 As of the date of this Agreement the Company has not received any written communication from a governmental entity that alleges that the Company is not in compliance with or is in default or violation of any applicable law, except where such non-compliance, default or violation would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect.

2.2.14 Except for such matters as have not had and would not be reasonably expected to have, individually or in the aggregate, a Material Adverse Effect, as of the date of this Subscription Agreement, there is no (i) action, claim, inquiry, arbitration, investigation, litigation or other proceeding pending, or, to the knowledge of the Company, threatened against the Company or (ii) judgment, decree, injunction, ruling or order of any governmental entity or arbitrator outstanding against the Company.

2.2.15 Except for discussions specifically regarding the offer and sale of the Securities, the Company confirms that neither it nor any other person acting on its behalf has provided Subscriber or its agents or counsel with any information that constitutes or could reasonably be expected to constitute material, nonpublic information concerning the Company or any of its subsidiaries, other than with respect to the Transaction and the transactions contemplated by this Subscription Agreement or the Other Subscription Agreements. Except with respect to the Transaction and the transactions contemplated by this Subscription Agreement and the Other Subscription Agreements, no event or circumstance has occurred which, under applicable law, rule or regulation, requires public disclosure at or before the date hereof or announcement by the Company but which has not been so publicly disclosed.

3.1 Closing. The closing of the Subscription contemplated hereby (the “Closing”) is contingent upon the substantially concurrent consummation of the Transaction, as provided for by the Transaction Agreement. The Closing shall occur on the closing date of, and immediately prior to, or simultaneously with, the consummation of the Transaction. Upon written notice from (or on behalf of) the Company to Subscriber (the “Closing Notice”) that the Company reasonably expects all conditions to the Transaction Closing to be satisfied on a date that is not less than five (5) business days from the date of the Closing Notice, Subscriber shall deliver to the Company, at least two (2) business day prior to the scheduled closing date specified in the Closing Notice (the “Scheduled Closing Date”), to be held in escrow until the Closing, the Purchase Price for the Securities by wire transfer of United States dollars in immediately available funds to the account specified by the Company in the Closing Notice, which at the Closing will be released to the Company against delivery by the Company promptly after the Closing to Subscriber of the Securities in book-entry form (or in certificated form if indicated by Subscriber on Subscriber’s signature page hereto), free and clear of any liens or other restrictions (other than those arising under this Subscription Agreement or applicable securities laws). Not later than one (1) business day after the Closing, the Company shall deliver to Subscriber the Securities in book entry form, in the name of Subscriber (or its nominee in accordance with its delivery instructions) or to a custodian designated by Subscriber, as applicable. In the event the Closing does not occur within three (3) business days of the Scheduled Closing Date, the Company shall promptly (but not later than two (2) business days thereafter) return the Purchase Price to Subscriber by wire transfer of U.S. dollars in immediately available funds to the account specified by the Subscriber, and any book-entries for the Securities shall be deemed repurchased and cancelled. Unless this Subscription Agreement is terminated pursuant to Section 5 below, the failure of the Closing to occur on the Scheduled Closing Date shall not terminate this Subscription Agreement or otherwise relieve any party of any of its obligations hereunder. For purposes of this Subscription Agreement, “business day” means any day that, in New York, New York, is neither a legal holiday nor a day on which commercial banking institutions are generally authorized or required by law or regulation to close (excluding as a result of “stay at home”, “shelter-in-place”, “non-essential employee” or any other similar orders or restrictions or the closure of any physical branch locations at the direction of any governmental authority so long as the electronic funds transfer systems, including for wire transfers, of commercial banking institutions in New York, New York are generally open for use by customers on such day).

3.2.1 The Closing shall be subject to the satisfaction or valid waiver by the Company, on the one hand, or Subscriber, on the other, of the conditions that, on the Closing Date:

(i) No suspension of the qualification of the Securities for offering or sale or trading of the Common Stock on the Nasdaq Capital Market (“Nasdaq”) shall have occurred and be continuing.

(ii) No Authority shall have enacted, issued, promulgated, enforced or entered any law, rule, regulation, judgment, decree, executive order or award (whether temporary preliminary or permanent) which is then in effect and has the effect of making the transactions contemplated hereby illegal or otherwise prohibiting or enjoining the consummation of the transactions contemplated hereby.

(iii) All conditions precedent to the consummation of the Transaction set forth in the Transaction Agreement, as determined by the parties to the Transaction Agreement, shall have been satisfied or waived by the party entitled to the benefit thereof (other than those conditions that, by their nature, may only be satisfied at the consummation of the Transaction, but subject to satisfaction of such conditions as of the consummation of the Transaction), and the Transaction Closing shall be substantially concurrent with the Closing.

3.2.2 The Closing shall also be subject to the satisfaction or valid waiver by the Subscriber of the conditions that, on the Closing Date:

(i) The Company shall have performed, satisfied and complied in all material respects with all agreements, conditions and covenants required by this Subscription Agreement to be performed by the Company at or prior to the Closing.

(ii) The representations and warranties of the Company contained in this Subscription Agreement shall be true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Material Adverse Effect (as defined herein), which representations and warranties shall be true in all respects) at and as of the Closing Date (except for representations and warranties made as of a specific date, which shall be true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Material Adverse Effect, which representations and warranties shall be true in all respects) as of such date), and consummation of the Closing, shall constitute a reaffirmation by the Company of each of the representations, warranties and agreements of the Company contained in this Subscription Agreement as of the Closing Date.

(iii) No amendment, waiver or modification of the Transaction Agreement shall have occurred that would reasonably be expected to materially and adversely affect the economic benefits that Subscriber would reasonably expect to receive under this Subscription Agreement, unless Subscriber has previously consented in writing to such amendment, waiver or modification.

(iv) Company shall have filed with Nasdaq an application or supplemental listing application for the listing of the Securities and Nasdaq shall have raised no objection with respect thereto, subject to official notice of issuance.

(v) There shall have been no amendment, waiver or modification to the Other Subscription Agreements that materially benefits (economically or otherwise) the Other Subscribers thereunder unless this Subscription Agreement shall have been amended to reflect the same terms.

(vi) From and after the date hereof, there shall have not occurred a Material Adverse Effect which is continuing and uncured.

3.2.3 The Closing shall also be subject to the satisfaction or valid waiver by the Company of the conditions that, on the Closing Date:

(i) Subscriber shall have performed, satisfied and complied in all material respects with all agreements, conditions and covenants required by this Subscription Agreement to be performed by Subscriber at or prior to the Closing.

(ii) All representations and warranties of Subscriber contained in this Subscription Agreement shall be true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Subscriber Material Adverse Effect, which representations and warranties shall be true in all respects) at and as of the Closing Date (except for representations and warranties made as of a specific date, which shall be true and correct in all material respects (other than representations and warranties that are qualified as to materiality or Subscriber Material Adverse Effect, which representations and warranties shall be true in all respects) as of such date), and consummation of the Closing, shall constitute a reaffirmation by the Subscriber of each of the representations, warranties and agreements of the Subscriber contained in this Subscription Agreement as of the Closing Date.

4.1 After the Closing, the Securities may only be resold, transferred, pledged or otherwise disposed of in compliance with state and federal securities laws and pursuant to an effective registration statement, Rule 144 under the Securities Act (“Rule 144”) or pursuant to another applicable exemption from the registration requirements of the Securities Act, to the Company or to an affiliate of Subscriber. As a condition of transfer (other than pursuant to an effective registration statement pursuant to Rule 144 or pursuant to another applicable exemption from the registration requirements of the Securities Act), any such transferee shall agree in writing to be bound by the terms of this Subscription Agreement and shall have the rights and obligations of Subscriber under this Agreement.

4.2 The Company acknowledges that the Securities may be pledged by Subscriber in connection with a bona fide margin agreement, provided that such pledge shall be pursuant to an available exemption from the registration requirements of the Securities Act or pursuant to, and in accordance with, a registration statement that is effective under the Securities Act at the time of such pledge, and Subscriber effecting a pledge of the Securities shall not be required to provide the Company with any notice thereof; provided, however, that neither the Company nor its counsel shall be required to take any action (or refrain from taking any action) in connection with any such pledge, other than providing any such lender of such margin agreement with an acknowledgment that the Securities are not subject to any contractual lock up or prohibition on pledging, the form of such acknowledgment to be subject to review and comment by the Company in all respects.

4.3 Subject to applicable requirements of the Securities Act and the interpretations of the Commission thereunder and any requirements of the Company’s transfer agent, the Company shall use commercially reasonable efforts to ensure that instruments, whether certificated or uncertificated, evidencing the Securities shall not contain any legend (including the legend set forth in Section 4.4 below) (i) following any sale of such Securities pursuant to Rule 144, (ii) if such Securities are eligible for sale under Rule 144 without the requirement for the Company to be in compliance with the current public information required under Rule 144 and without volume or manner-of-sale restrictions, and in each case, Subscriber provides the Company with an undertaking to effect any sales or other transfers in accordance with the Securities Act, or (iii) if such legend is not required under applicable requirements of the Securities Act (including judicial interpretations and pronouncements issued by the staff of the Commission).

4.4 Subscriber agrees to the imprinting, so long as is required by this Section 4, of a legend on any of the Securities in the following form:

THIS SECURITY HAS NOT BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS.

4.5 Subscriber hereby acknowledges and agrees that it will not, and will cause each person acting at Subscriber’s direction or pursuant to any understanding with Subscriber to not, directly or indirectly offer, sell, pledge, contract to sell or sell any option to purchase, or engage in hedging activities or execute any “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act, in each case that result in Subscriber having a net short cash position in respect of the Securities until the Closing (or such earlier termination of this Subscription Agreement in accordance with its terms). For the avoidance of doubt, nothing contained herein shall prohibit Subscriber from (i) any purchase of securities by Subscriber, its controlled affiliates or any person or entity acting on behalf of Subscriber or any of its controlled affiliates in an open market transaction after the execution of this Subscription Agreement, or (ii) any sale (including the exercise of any redemption right) of securities of the Company (A) held by Subscriber, its controlled affiliates or any person or entity acting on behalf of Subscriber or any of its controlled affiliates prior to the execution of this Subscription Agreement or (B) purchased by Subscriber, its controlled affiliates or any person or entity acting on behalf of Subscriber or any of its controlled affiliates in an open market transaction after the execution of this Subscription Agreement. Notwithstanding the foregoing, (i) nothing herein shall prohibit other entities under common management with Subscriber that have no knowledge of this Subscription Agreement or of Subscriber’s participation in the Transaction (including Subscriber’s controlled affiliates and/or affiliates) from entering into any “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act and (ii) in the case of a Subscriber that is a multi-managed investment vehicle whereby separate portfolio managers manage separate portions of such Subscriber’s assets and the portfolio managers have no knowledge of the investment decisions made by the portfolio managers managing other portions of such Subscriber’s assets, the representation set forth above shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase the Securities covered by this Subscription Agreement.

4.6 The Company will use its commercially reasonable efforts to make all Securities eligible on the Direct Registration System of the Depository Trust Company so that Subscriber can move shares to respective prime broker accounts and sell without restriction.

5. Termination. Except for the provisions of Sections 5, 7, 8 and 9 and the provisions of this Agreement providing for the return of funds previously delivered in the event the Closing does not occur, all of which shall survive any termination hereunder, this Subscription Agreement shall terminate and be void and of no further force and effect, and all rights and obligations of the parties hereunder shall terminate without any further liability on the part of any party in respect thereof, upon the earliest to occur of (i) such date and time as the Transaction Agreement is terminated in accordance with its terms, (ii) upon the mutual written agreement of each of the parties hereto and Nauticus to terminate this Subscription Agreement, (iii) at the election of the Subscriber, if the Closing shall not have occurred on or before the Outside Date (as defined in the Transaction Agreement), or (iv) if any of the conditions to Closing set forth in Section 3.2 are not satisfied on or prior to the Closing Date and, as a result thereof, the transactions contemplated by this Subscription Agreement are not consummated at the Closing; provided, that, subject to the limitations set forth in Section 8, nothing herein will relieve any party from liability for any willful breach hereof prior to the time of termination, and each party will be entitled to any remedies at law or in equity to recover losses, liabilities or damages arising from such breach. The Company shall notify Subscriber of the termination of the Transaction Agreement promptly after the termination of such agreement. Upon the termination hereof in accordance with this Section 5, any monies paid by Subscriber to the Company in connection herewith shall promptly (and in any event within two (2) Business Days) be returned in full to Subscriber by wire transfer of U.S. dollars in immediately available funds to the account specified by Subscriber.

6.1 The Company agrees that prior to the Closing Date , the Company will file with the Commission (at the Company’s sole cost and expense) a registration statement to register under and in accordance with the provisions of the Securities Act, the resale of all of the Registrable Securities (as defined below) on Form S-3 or Form S-1 (which in either case shall be filed pursuant to Rule 415 under the Securities Act as a secondary-only registration statement), which shall be on Form S-3 if the Company is then eligible for such short form, or any similar or successor short form registration or, if the Company is not then eligible for such short form registration or would not be able to register for resale all of the Registrable Securities on Form S-3, on Form S-1 or any similar or successor long form registration (the “Registration Statement”). The Company will provide a draft of the Registration Statement to Subscriber for review at least two (2) business days in advance of the filing the Registration Statement, and shall advise Subscriber promptly upon the Registration Statement being declared effective by the Commission. The Company shall use its commercially reasonable efforts to have the Registration Statement declared effective by the Commission as soon as practicable after the filing thereof, but no later than the earlier of (i) sixty (60) calendar days (or ninety (90) calendar days if the Commission notifies the Company that it will “review” the Registration Statement) following the Closing Date and (ii) the fifth (5^th) business day after the date the Company is notified in writing by the Commission that the Registration Statement will not be “reviewed” or will not be subject to further review (such earlier date, the “Effectiveness Deadline”); provided, however, that the Company’s obligations to include the Registrable Securities of Subscriber in the Registration Statement are contingent upon Subscriber furnishing in writing to the Company such information regarding Subscriber, the securities of the Company held by Subscriber and the intended method of disposition of the Registrable Securities as shall be reasonably requested by the Company to effect the registration of the Registrable Securities, and Subscriber shall execute such documents in connection with such registration as the Company may reasonably request that are customary of a selling shareholder in similar situations. Notwithstanding the foregoing, if the Commission prevents the Company from including any or all of the Common Stock proposed to be registered under the Registration Statement due to limitations on the use of Rule 415 under the Securities Act for the resale of the Registrable Securities by the Subscribers or otherwise, the Company shall use its best efforts to ensure that the Commission determines that (1) the offering contemplated by the Registration Statement is a bona fide secondary offering and not an offering “by or on behalf of the issuer” as defined in Rule 415 of the Securities Act and (2) Subscriber is not a statutory underwriter. If the Company is unsuccessful in the efforts described in the preceding sentence then (i) the Company shall cause such Registration Statement to register for resale such number of Common Stock which is equal to the maximum number of Common Stock as is permitted by the Commission and (ii) Subscriber shall have an opportunity to withdraw its Registrable Securities. In such event, the number of Common Stock to be registered for each selling shareholder named in the Registration Statement shall be reduced pro rata among all such selling shareholders. The Company will use its commercially reasonable efforts to maintain the continuous effectiveness of the Registration Statement until the earliest of (x) such time as when all of Subscriber’s securities included therein cease to be Registrable Securities, (y) such time as when all of Subscriber’s Registrable Securities included in such Registration Statement have actually been sold and (z) three years from the Closing Date. The Company will use its commercially reasonable efforts to cause the removal of all restrictive legends from any Registrable Securities being sold under the Registration Statement at the time of sale of such Registrable Securities upon the receipt from the Subscriber of such supporting documentation, if any, as requested by the Company. The Company will use commercially reasonable efforts to file all reports, and provide all customary and reasonable cooperation, reasonably necessary to enable Subscriber to resell Registrable Securities pursuant to the Registration Statement and Rule 144, qualify the Registrable Securities for listing on the applicable stock exchange and update or amend the Registration Statement as necessary to include Registrable Securities. “Registrable Securities” shall mean, as of any date of determination, the Securities and any other equity security issued or issuable with respect to the Securities by way of share split, dividend, distribution, recapitalization, merger, exchange, replacement or similar event, provided, however, that such securities shall cease to be Registrable Securities at the earliest of (A) three (3) years after the Closing Date, (B) the date all Securities held by Subscriber may be sold by Subscriber without volume or manner of sale limitations pursuant to Rule 144 and without the requirement for the Company to be in compliance with the current public information required under Rule 144(c)(1) (or Rule 144(i)(2), if applicable), (C) the date on which such securities have actually been sold by Subscriber, or (D) when such securities shall have ceased to be outstanding. Notwithstanding the foregoing, Subscriber shall not be required to sign any form of lock-up agreement in connection with the Registration Statement. Subscriber may deliver written notice (an “Opt-Out Notice”) to the Company requesting that Subscriber not receive notices from the Company otherwise required by this Section 6.1; provided, however, that Subscriber may later revoke any such Opt-Out Notice in writing. Following receipt of an Opt-Out Notice from Subscriber (unless subsequently revoked), (i) the Company shall not deliver any such notices to Subscriber and Subscriber shall no longer be entitled to the rights associated with any such notice and (ii) Subscriber will notify the Company in writing at least three (3) business days in advance of each intended use of an effective Registration Statement, and if a notice of a Suspension Event (as defined below) was previously delivered (or would have been delivered but for the provisions of this Section 6.1) and the related suspension period remains in effect, the Company will so notify Subscriber, within two (2) business days after Subscriber’s notification to the Company, by delivering to Subscriber a copy of such previous notice of Suspension Event, and thereafter will provide Subscriber with the related notice of the conclusion of such Suspension Event promptly following its availability.

6.2.1 except for such times as the Company is permitted hereunder to suspend the use of the prospectus forming part of a Registration Statement, use its commercially reasonable efforts to keep such registration, and any qualification, exemption or compliance under state securities laws that the Company determines to obtain in connection with such registration, continuously effective with respect to Subscriber, and to keep the applicable Registration Statement or any subsequent shelf registration statement free of any material misstatements or omissions, until all Securities acquired by Subscriber hereunder cease to be Registrable Securities or such shorter period upon which Subscriber has notified the Company that such Registrable Securities have actually been sold, or otherwise when such Registration Statement is no longer required to be effective under this Section 6;

6.2.2 subject to an Opt-Out Notice, advise Subscriber within three (3) business days: (A) of the issuance by the Commission of any stop order suspending the effectiveness of any Registration Statement or the initiation of any proceedings for such purpose; (B) of the receipt by the Company of any notification with respect to the suspension of the qualification of the Registrable Securities included therein for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and (C) subject to the provisions in this Subscription Agreement, of the occurrence of any event that requires the making of any changes in any Registration Statement or prospectus included therein so that, as of such date, the statements therein are not misleading and do not omit to state a material fact required to be stated therein or necessary to make the statements therein (in the case of a prospectus, in the light of the circumstances under which they were made) not misleading. Notwithstanding anything to the contrary set forth herein, the Company shall not, when so advising Subscriber of such events, provide Subscriber with any material, nonpublic information regarding the Company other than to the extent that providing notice to Subscriber of the occurrence of the events listed in (A) through (C) above constitutes material, nonpublic information regarding the Company;

6.2.3 use its commercially reasonable efforts to obtain the withdrawal of any order suspending the effectiveness of any Registration Statement as promptly as reasonably practicable;

6.2.4 upon the occurrence of any event contemplated in Section 6.2.2, except for such times as the Company is permitted hereunder to suspend, and has suspended, the use of a prospectus forming part of a Registration Statement, the Company shall use its commercially reasonable efforts to as promptly as reasonably practicable prepare a post-effective amendment to such Registration Statement or a supplement to the related prospectus, or file any other required document so that, as thereafter delivered to purchasers of the Registrable Securities included therein, such prospectus will not include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading;

6.2.5 use its commercially reasonable efforts to cause all Securities to be listed on each securities exchange or market, if any, on which the Common Stock issued by the Company have been listed; and

6.2.6 use its commercially reasonable efforts to take all other steps necessary to effect the registration of the Registrable Securities contemplated hereby.

6.3 Notwithstanding anything to the contrary in this Subscription Agreement, the Company shall be entitled to delay or postpone the effectiveness of the Registration Statement, and from time to time to require Subscriber not to sell under the Registration Statement or to suspend the effectiveness thereof, (i) if any information (e.g., compensation data) is not readily available and the non-disclosure of which in the Registration Statement would be expected, in the reasonable determination of the Company’s board of directors, upon the advice of external legal counsel, to cause the Registration Statement to fail to comply with applicable disclosure requirements, (ii) at any time the Company is required to file a post-effective amendment to the Registration Statement and the Commission has not declared such amendment effective or (iii) if the negotiation or consummation of a transaction by the Company or its subsidiaries is pending or an event has occurred, which negotiation, consummation or event, the Company’s board of directors reasonably believes, upon the advice of external legal counsel, would require additional disclosure by the Company in the Registration Statement of material non-public information that the Company has a bona fide business purpose for keeping confidential and the non-disclosure of which in the Registration Statement would be expected, in the reasonable determination of the Company’s board of directors, upon the advice of external legal counsel, to cause the Registration Statement to fail to comply with applicable disclosure requirements (each such circumstance, a “Suspension Event”); provided, however, the Company shall not so delay filing or so suspend the use of the Registration Statement on more than two (2) occasions or for a period of more than sixty (60) consecutive days or more than a total of ninety (90) calendar days, in each case in any three hundred sixty (360) day period. Upon receipt of any written notice from the Company of the happening of any Suspension Event during the period that the Registration Statement is effective or if as a result of a Suspension Event the Registration Statement or related prospectus contains any untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made (in the case of the prospectus) not misleading, Subscriber agrees that (i) it will immediately discontinue offers and sales of the Registrable Securities under the Registration Statement (excluding, for the avoidance of doubt, sales conducted pursuant to Rule 144) until such Subscriber receives copies of a supplemental or amended prospectus (which the Company agrees to promptly prepare after the completion of the Suspension Event) that corrects the misstatement(s) or omission(s) referred to above and receives notice that any post-effective amendment has become effective or unless otherwise notified by the Company that it may resume such offers and sales, and (ii) it will maintain the confidentiality of any information included in such written notice delivered by the Company unless otherwise required by law or subpoena. If so directed by the Company, Subscriber will deliver to the Company or, in such Subscriber’s sole discretion destroy, all copies of the prospectus covering the Registrable Securities in such Subscriber’s possession; provided, however, that this obligation to deliver or destroy all copies of the prospectus covering the Registrable Securities shall not apply (i) to the extent such Subscriber is required to retain a copy of such prospectus (a) in order to comply with applicable legal, regulatory, self-regulatory or professional requirements or (b) in accordance with a bona fide pre-existing document retention policy or (ii) to copies stored electronically on archival servers as a result of automatic data back-up.

6.4 The Company shall indemnify, defend and hold harmless Subscriber (to the extent a seller under the Registration Statement), and any of its officers, directors, agents, partners, members, stockholders, affiliates, managers, investment advisers and employees, and each person who controls Subscriber (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act), to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including reasonable out-of-pocket external attorneys’ fees and expenses incurred in connection with defending or investigating any such action or claim) and expenses (collectively, “Losses”), as incurred, that arise out of or are based upon (i) any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any prospectus included in the Registration Statement or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission to state a material fact required to be stated therein or necessary to make the statements therein (in the case of any prospectus or form of prospectus or supplement thereto, in the light of the circumstances under which they were made) not misleading or (ii) any violation or alleged violation by the Company of the Securities Act, Exchange Act or any state securities law or any rule or regulation thereunder, in connection with the performance of its obligations under this Section 6, except insofar as and to the extent, but only to the extent, that such untrue statements, alleged untrue statements, omissions or alleged omissions are based upon information regarding Subscriber furnished in writing to the Company by such Subscriber expressly for use therein or such Subscriber has omitted a material fact from such information or otherwise violated the Securities Act, the Exchange Act or any state securities law or any rule or regulation thereunder, in each case, in connection with the registration of the Common Stock; provided, however, that the indemnification contained in this Section 6 shall not apply to amounts paid in settlement of any Losses if such settlement is effected without the consent of the Company (which consent shall not be unreasonably withheld, conditioned or delayed), nor shall the Company be liable for any Losses to the extent they arise out of or are based upon a violation which occurs (A) in reliance upon and in conformity with written information furnished by such Subscriber, (B) in connection with any failure of such person to deliver or cause to be delivered a prospectus made available by the Company in a timely manner, (C) as a result of offers or sales effected by or on behalf of any person by means of a “free writing prospectus” (as defined in Rule 405 under the Securities Act) that was not authorized in writing by the Company, or (D) in connection with any offers or sales effected by or on behalf of such Subscriber in violation of Section 6.3 hereof. Subscriber shall notify the Company promptly of the institution of any proceeding arising from or in connection with the transactions contemplated by this Section 6 of which Subscriber becomes aware, provided that a failure by Subscriber to provide such notice shall not impact Subscriber’s right to be indemnified hereunder unless the Company is actually prejudiced thereby. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of an indemnified party and shall survive the transfer of the Securities by Subscriber.

6.5 Subscriber shall (severally and not jointly with any Other Subscriber) indemnify and hold harmless the Company, its directors, officers, agents and employees, and each person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), to the fullest extent permitted by applicable law, from and against all Losses, as incurred, arising out of or are based upon any untrue or alleged untrue statement of a material fact contained in any Registration Statement, any prospectus included in the Registration Statement, or any form of prospectus, or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any prospectus, or any form of prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading to the extent, but only to the extent, that such untrue statements or omissions are based solely upon information regarding Subscriber furnished in writing to the Company by Subscriber expressly for use therein; provided, however, that the indemnification contained in this Section 6 shall not apply to amounts paid in settlement of any Losses if such settlement is effected without the consent of Subscriber (which consent shall not be unreasonably withheld, conditioned or delayed). In no event shall the liability of Subscriber be greater in amount than the dollar amount of the net proceeds received by Subscriber upon the sale of the Registrable Securities giving rise to such indemnification obligation. The Company shall notify Subscriber promptly of the institution of any proceeding arising from or in connection with the transactions contemplated by this Section 6 of which the Company becomes aware, provided that a failure by the Company to provide such notice shall not impact the Company’s right to be indemnified hereunder unless Subscriber is actually prejudiced thereby. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of an indemnified party and shall survive the transfer of the Securities by Subscriber.

6.6 If the indemnification provided under this Section 6 from the indemnifying party is unavailable or insufficient to hold harmless an indemnified party in respect of any losses, claims, damages, liabilities and expenses referred to herein, then the indemnifying party, in lieu of indemnifying the indemnified party, shall contribute to the amount paid or payable by the indemnified party as a result of such losses, claims, damages, liabilities and expenses in such proportion as is appropriate to reflect the relative fault of the indemnifying party and the indemnified party, as well as any other relevant equitable considerations. The relative fault of the indemnifying party and indemnified party shall be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, was made by, or relates to information supplied by, such indemnifying party or indemnified party, and the indemnifying party’s and indemnified party’s relative intent, knowledge, access to information and opportunity to correct or prevent such action. The amount paid or payable by a party as a result of the losses or other liabilities referred to above shall be deemed to include, subject to the limitations set forth in this Section 6, any legal or other fees, charges or expenses reasonably incurred by such party in connection with any investigation or proceeding. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution pursuant to this Section 6 from any person who was not guilty of such fraudulent misrepresentation. Each indemnifying party’s obligation to make a contribution pursuant to this Section 6.6 shall be individual, not joint and several, and in no event shall the liability of Subscriber hereunder be greater in amount than the dollar amount of the net proceeds received by Subscriber upon the sale of the Registrable Securities giving rise to such indemnification obligation.

7.1 Further Assurances. At the Closing, the parties hereto shall execute and deliver such additional documents and take such additional actions as the parties reasonably may deem to be practical and necessary in order to consummate the Subscription as contemplated by this Subscription Agreement.

7.1.1 Subscriber acknowledges that the Company, the Placement Agent and others will rely on the acknowledgments, understandings, agreements, representations and warranties contained in this Subscription Agreement. Subscriber agrees to promptly notify the Company if any of the acknowledgments, understandings, agreements, representations and warranties made by Subscriber set forth herein are no longer accurate in all material respects. Subscriber further acknowledges and agrees that the Placement Agent is a third-party beneficiary of the representations and warranties of Subscriber contained in Section 2.1 of this Subscription Agreement.

7.1.2 Each of the Company and Subscriber is entitled to rely upon this Subscription Agreement and is irrevocably authorized to produce this Subscription Agreement or a copy hereof to any interested party in any administrative or legal proceeding or official inquiry with respect to the matters covered hereby, in each case, to the extent required by applicable law.

7.1.3 The Company may request from Subscriber such additional information as the Company may deem reasonably necessary to evaluate the eligibility of Subscriber to acquire the Securities, and Subscriber shall use reasonable best efforts to promptly provide such information as may be reasonably requested, to the extent readily available and to the extent consistent with its internal policies and procedures, provided that the Company agrees to keep confidential any such information provided by Subscriber.

7.2 Notices. Any notice or communication required or permitted hereunder shall be in writing and either delivered personally, emailed or sent by overnight mail via a reputable overnight carrier, or sent by certified or registered mail, postage prepaid, and shall be deemed to be given and received (a) when so delivered personally, (b) when sent, with affirmative confirmation of receipt, if sent by email, (c) one (1) business day after being sent, if sent by reputable, internationally recognized overnight courier service or (d) three (3) business days after the date of mailing by registered or certified mail (prepaid and return receipt requested), in any case, to the address below or to such other address or addresses as such person may hereafter designate by notice given hereunder:

(i) if to Subscriber, to such address or addresses set forth on the signature page hereto;

Loeb & Loeb LLP
345 Park Avenue, 19th Floor
New York, NY 10154
Attention: Giovanni Caruso
E-mail: gcaruso@loeb.com

7.3 Entire Agreement. This Subscription Agreement constitutes the entire agreement, and supersedes all other prior agreements, understandings, representations and warranties, both written and oral, among the parties, with respect to the subject matter hereof (other than any confidentiality agreement entered into by the Company and Subscriber in connection with the Offering).

7.4 Modifications and Amendments. This Subscription Agreement may not be modified, waived or terminated except by an instrument in writing, signed by the Company, Subscriber and, if prior to the Transaction Closing, Nauticus.

7.5 Waivers and Consents. The terms and provisions of this Subscription Agreement may be waived, or consent for the departure therefrom granted, only by a written document executed by the party against whom enforcement of such waiver or consent is sought (and with respect to any waiver or consent by the Company prior to the Transaction Closing, Nauticus). No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with respect to any other terms or provisions of this Subscription Agreement, whether or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was given, and shall not constitute a continuing waiver or consent. No failure or delay by a party hereto in exercising any right, power or remedy under this Subscription Agreement, and no course of dealing between the parties hereto, shall operate as a waiver of any such right, power or remedy of such party. No single or partial exercise of any right, power or remedy under this Subscription Agreement by a party hereto, nor any abandonment or discontinuance of steps to enforce any such right, power or remedy, shall preclude such party from any other or further exercise thereof or the exercise of any other right, power or remedy hereunder. The election of any remedy by a party hereto shall not constitute a waiver of the right of such party to pursue other available remedies. No notice to or demand on a party not expressly required under this Subscription Agreement shall entitle the party receiving such notice or demand to any other or further notice or demand in similar or other circumstances or constitute a waiver of the rights of the party giving such notice or demand to any other or further action in any circumstances without such notice or demand.

7.6 Assignment. Neither this Subscription Agreement nor any rights, interests or obligations that may accrue to the Subscriber hereunder (other than the Securities acquired hereunder by Subscriber, if any, after the Closing and Subscriber’s rights under Section 6 above) may be transferred or assigned without the prior written consent of the Company, and any purported transfer or assignment without such consent shall be null and void ab initio; provided, however, Subscriber may transfer or assign its rights, interests and obligations hereunder to a controlled affiliate of Subscriber or another investment fund or account managed or advised by the same manager as Subscriber (or a related party or affiliate) that can satisfy the requirements of Section 2.1.4 and the other representations and warranties in Section 2.1, provided, further, that no such transfer or assignment without the prior express written consent of the Company shall release Subscriber of its obligations hereunder and such transferee(s) or assignee(s), as applicable, agrees in writing to be bound by the terms hereof as if it were the original Subscriber party hereto.

7.7.1 Except as otherwise provided herein, this Subscription Agreement shall be binding upon, and inure to the benefit of the parties hereto and their heirs, executors, administrators, successors, legal representatives, and permitted assigns, and the agreements, representations, warranties, covenants and acknowledgments contained herein shall be deemed to be made by, and be binding upon, such heirs, executors, administrators, successors, legal representatives and permitted assigns. Except as expressly provided for herein, this Subscription Agreement shall not confer rights or remedies upon any person other than the parties hereto and their respective successors and permitted assigns.

7.7.2 Subscriber acknowledges and agrees that (a) this Subscription Agreement is being entered into in order to induce Nauticus to execute and deliver the Transaction Agreement and without the representations, warranties, covenants and agreements of Subscriber hereunder, the Nauticus would not enter into the Transaction Agreement, (b) each representation, warranty, covenant and agreement of Subscriber hereunder is being made also for the benefit of the Nauticus and the Placement Agent, and (c) Nauticus may directly enforce (including by an action for specific performance, injunctive relief or other equitable relief) each of the covenants and agreements of Subscriber under this Subscription Agreement.

7.7.3 Each of the parties agrees that Nauticus is an express third party beneficiary of this Agreement and Nauticus may directly enforce (including by an action for specific performance, injunctive relief or other equitable relief) each of the provisions of this Agreement, as amended, modified, supplemented or waived in accordance with Sections 7.4 and 7.5, as if it were a direct party hereto. Each of the parties further agrees that the Placement Agent is a third-party beneficiary of the representations and warranties of Subscriber and the Company under this Subscription Agreement.

7.8 Governing Law. This Subscription Agreement, and any claim or cause of action hereunder based upon, arising out of or related to this Subscription Agreement (whether based on law, in equity, in contract, in tort or any other theory) or the negotiation, execution, performance or enforcement of this Subscription Agreement, shall be governed by and construed in accordance with the laws of the State of New York, without giving effect to the principles of conflicts of law thereof.

7.9 Consent to Jurisdiction; Waiver of Jury Trial. The parties hereto agree to submit any matter or dispute resulting from or arising out of the execution, performance, interpretation, breach or termination of this Agreement to the exclusive jurisdiction of federal or state courts within the County of New York, State of New York (and any appellate courts thereof) (the “Specified Courts”). Each of the parties agrees that service of any process, summons, notice or document in the manner set forth in Section 7.2 hereof or in such other manner as may be permitted by applicable law, shall be effective service of process for any proceeding with respect to any matters to which it has submitted to jurisdiction in this Section 7.9. Each of the parties hereto irrevocably and unconditionally agrees that it is subject to, and hereby submits to, the personal jurisdiction of the Specified Courts for any action, suit or proceeding arising out of this Subscription Agreement or the transactions contemplated hereunder and waives any objection to the laying of venue in the Specified Courts (the United States District Court for the Southern District of New York, or the applicable New York state courts if the federal jurisdictional standards are not satisfied), and hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action, suit or proceeding brought in any such court has been brought in an inconvenient forum. TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, EACH OF THE PARTIES HEREBY IRREVOCABLY WAIVES ITS RIGHTS TO A TRIAL BY JURY.

7.10 Non-Reliance and Exculpation. Subscriber acknowledges that it is not relying upon, and has not relied upon, any statement, representation or warranty made by any person (including the Placement Agent, any of its respective affiliates or any of its or their control persons, officers, directors, employees, partners, agents, and any representatives of any of the foregoing), other than the statements, representations and warranties of the Company expressly contained in Section 2.2 of this Subscription Agreement, in making its investment or decision to invest in the Company. Subscriber acknowledges and agrees that neither of the Placement Agent, nor its affiliates or any of its or their respective control persons, officers, directors, employees or representatives shall have any liability to Subscriber pursuant to, arising out of or relating to this Subscription Agreement, the negotiation hereof or its subject matter, or the transactions contemplated hereby, including, without limitation, with respect to any action heretofore or hereafter taken or omitted to be taken by any of them in connection with the purchase of the Securities or with respect to any claim (whether in tort, contract or otherwise) for breach of this Subscription Agreement or in respect of any written or oral representations made or alleged to be made in connection herewith, as expressly provided herein, or for any actual or alleged inaccuracies, misstatements or omissions with respect to any information or materials of any kind furnished by the Company, the Placement Agent, Nauticus or any other person or entity concerning the Company or Nauticus. Subscriber further acknowledges and agrees that no Other Subscriber pursuant to Other Subscription Agreements (including the controlling persons, members, officers, directors, partners, agents, employees or other representatives of any such Other Subscriber) shall be liable to Subscriber pursuant to this Subscription Agreement for any action heretofore or hereafter taken or omitted to be taken by any of them in connection with the purchase of the Securities.

7.11 Severability. If any provision of this Subscription Agreement shall be invalid, illegal or unenforceable, the validity, legality or enforceability of the remaining provisions of this Subscription Agreement shall not in any way be affected or impaired thereby and shall continue in full force and effect. Upon such determination that any provision is invalid, illegal or unenforceable, the parties will substitute for any invalid, illegal or unenforceable provision a suitable and equitable provision that carries out so far as may be valid, legal and enforceable, the intent and purpose of such invalid, illegal or unenforceable provision.

7.12 Survival of Representations and Warranties. All representations and warranties made by the parties hereto in this Subscription Agreement or in any other agreement, certificate or instrument provided for or contemplated hereby, shall survive the Closing until the expiration of any statute of limitations under applicable law.

7.13 Expenses. The Subscriber shall pay all of its own expenses in connection with this Subscription Agreement and the transactions contemplated herein.

7.14 Headings and Captions. The headings and captions of the various subdivisions of this Subscription Agreement are for convenience of reference only and shall in no way modify or affect the meaning or construction of any of the terms or provisions hereof.

7.15 Counterparts. This Subscription Agreement may be executed in one or more counterparts (including by facsimile or electronic mail or in .pdf), all of which when taken together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both parties need not sign the same counterpart. In the event that any signature is delivered by facsimile transmission or any other form of electronic delivery, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such signature page were an original thereof.

7.16 Construction. The words “include,” “includes,” and “including” will be deemed to be followed by “without limitation.” Pronouns in masculine, feminine, and neuter genders will be construed to include any other gender, and words in the singular form will be construed to include the plural and vice versa, unless the context otherwise requires. The words “this Subscription Agreement,” “herein,” “hereof,” “hereby,” “hereunder,” and words of similar import refer to this Subscription Agreement as a whole and not to any particular subdivision unless expressly so limited. The parties hereto intend that each representation, warranty, and covenant contained herein will have independent significance. If any party hereto has breached any representation, warranty, or covenant contained herein in any respect, the fact that there exists another representation, warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity) which such party hereto has not breached will not detract from or mitigate the fact that such party hereto is in breach of the first representation, warranty, or covenant. All references in this Subscription Agreement to numbers of shares, per share amounts and purchase prices shall be appropriately adjusted to reflect any stock split, stock dividend, stock combination, recapitalization or the like occurring after the date hereof. As used in this Subscription Agreement, the term: (x) “person” shall refer to any individual, corporation, partnership, trust, limited liability company or other entity or association, including any governmental or regulatory body, whether acting in an individual, fiduciary or any other capacity; and (y) “affiliate” shall mean, with respect to any specified person, any other person or group of persons acting together that, directly or indirectly, through one or more intermediaries controls, is controlled by or is under common control with such specified person (where the term “control” (and any correlative terms) means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of such person, whether through the ownership of voting securities, by contract or otherwise). For the avoidance of doubt, any reference in this Subscription Agreement to an affiliate of the Company will include the Company’s two co-sponsors, CleanTech Sponsor I LLC and CleanTech Investments, LLC.

7.17 Mutual Drafting. This Subscription Agreement is the joint product of Subscriber and the Company and each provision hereof has been subject to the mutual consultation, negotiation and agreement of such parties and shall not be construed for or against any party hereto.

7.18.1 The parties agree that the irreparable damage would occur if this Subscription Agreement was not performed in accordance with its specific terms or was otherwise breached and that money damages or other legal remedies would not be an adequate remedy for any such damage. It is accordingly agreed that the parties hereto shall be entitled to equitable relief, including in the form of an injunction or injunctions, to prevent breaches or threatened breaches of this Subscription Agreement and to enforce specifically the terms and provisions of this Subscription Agreement in an appropriate court of competent jurisdiction as set forth in Section 7.9, this being in addition to any other remedy to which any party is entitled at law or in equity, including money damages. The right to specific enforcement shall include the right of the parties hereto to cause to cause the other parties hereto to cause the transactions contemplated hereby to be consummated on the terms and subject to the conditions and limitations set forth in this Subscription Agreement. The parties hereto further agree (i) to waive any requirement for the security or posting of any bond in connection with any such equitable remedy, (ii) not to assert that a remedy of specific enforcement pursuant to this Section 7.18 is unenforceable, invalid, contrary to applicable law or inequitable for any reason and (iii) to waive any defenses in any action for specific performance, including the defense that a remedy at law would be adequate.

7.18.2 The parties acknowledge and agree that this Section 7.18 is an integral part of the transactions contemplated hereby and without that right, the parties hereto would not have entered into this Subscription Agreement.

7.18.3 In any dispute arising out of or related to this Subscription Agreement, or any other agreement, document, instrument or certificate contemplated hereby, or any transactions contemplated hereby or thereby, the applicable adjudicating body shall award to the prevailing party, if any, the documented and out-of-pocket costs and external attorneys’ fees reasonably incurred by the prevailing party in connection with the dispute and the enforcement of its rights under this Subscription Agreement or any other agreement, document, instrument or certificate contemplated hereby and, if the adjudicating body determines a party to be the prevailing party under circumstances where the prevailing party won on some but not all of the claims and counterclaims, the adjudicating body may award the prevailing party an appropriate percentage of the documented out-of-pocket costs and external attorneys’ fees reasonably incurred by the prevailing party in connection with the adjudication and the enforcement of its rights under this Subscription Agreement or any other agreement, document, instrument or certificate contemplated hereby or thereby.

8.1 The Company shall, by 5:30 p.m., New York City time, on the first (1^st) business day immediately following the date of this Subscription Agreement file a Current Report on Form 8-K with the Commission (the time of such filing, “Disclosure Time”) disclosing and describing all material terms of the transactions contemplated hereby and the Merger, and a form of this Subscription Agreement will be filed with the Commission as an exhibit thereto. From and after the Disclosure Time, the Company represents to Subscriber that it shall have publicly disclosed all material, non-public information delivered to Subscriber by the Company, Nauticus or any of their officers, directors, employees or agents in connection with the transactions contemplated by the Subscription Agreement and the Transaction Agreement, and Subscriber shall no longer be subject to any confidentiality or similar obligations under any current agreement, whether written or oral with Company, Placement Agents or any of their affiliates, relating to the transactions contemplated by this Subscription Agreement.

8.2 Notwithstanding anything in this Subscription Agreement to the contrary, the Company shall not publicly disclose the name of Subscriber or any of its affiliates, or include the name of Subscriber or any of its affiliates in any press release or in any filing with the Commission or any regulatory agency or trading market, without the prior written consent of Subscriber, except (i) as required by the federal securities law in connection with the Registration Statement, (ii) in a press release or marketing materials of the Company in connection with the Merger to the extent any such disclosure is substantially equivalent to the information that has previously been made public without breach of the obligation under this Section 8.2 and (iii) to the extent such disclosure is required by law, at the request of the Staff of the Commission or regulatory agency or under the regulations of Nasdaq, in which case the Company shall provide Subscriber with prior written notice of such disclosure, and shall reasonably consult with the Subscriber regarding such disclosure.

9. Trust Account Waiver. Subscriber acknowledges that the Company is a blank check company with the powers and privileges to effect a merger, asset acquisition, reorganization or similar business combination involving the Company and one or more businesses or assets. Subscriber further acknowledges that, as described in the Prospectus available at www.sec.gov, substantially all of the Company’s assets consist of the cash proceeds of Company’s initial public offering (including overallotment securities sold by the Company’s underwriter thereafter) and private placements of its securities, and substantially all of those proceeds have been deposited in a trust account (the “Trust Account”) for the benefit of Company, its public shareholders and the underwriters of Company’s initial public offering. Except with respect to interest earned on the funds held in the Trust Account that may be released to Company to pay its tax obligations, if any, the cash in the Trust Account may be disbursed only for the purposes set forth in the Prospectus. For and in consideration of the Company entering into this Subscription Agreement, the receipt and sufficiency of which are hereby acknowledged, Subscriber, on behalf of itself and its representatives, hereby irrevocably waives any and all right, title and interest, or any claim of any kind they now have or may have in the future, in or to any monies held in the Trust Account or distributions therefrom to the Company’s public stockholders, and agrees not to seek recourse against the Trust Account for any claims in connection with, as a result of, or arising out of, this Subscription Agreement or the transactions contemplated hereby; provided, however, that nothing in this Section 9 (x) shall serve to limit or prohibit Subscriber’s right to pursue a claim against Company for legal relief against assets held outside the Trust Account (other than distributions to the Company’s public stockholders), for specific performance or other equitable relief, (y) shall serve to limit or prohibit any claims that Subscriber may have in the future against Company’s assets or funds that are not held in the Trust Account (including any funds that have been released from the Trust Account (other than distributions to the Company’s public stockholders) and any assets that have been purchased or acquired with any such funds) or (z) shall be deemed to limit any Subscriber’s right, title, interest or claim to the Trust Account by virtue of such Subscriber’s record or beneficial ownership of securities of the Company acquired by any means other than pursuant to this Subscription Agreement, including but not limited to any redemption right with respect to any such securities of the Company.

IN WITNESS WHEREOF, each of the Company and Subscriber has executed or caused this Subscription Agreement to be executed by its duly authorized representative as of the date first set forth above.

Subscriber must pay the Purchase Price by wire transfer of U.S. dollars in immediately available funds to the account specified by the Company in the Closing Notice.

If Subscriber wants certificated Securities rather than book-entry form, indicate here: ________

an “affiliate” (as defined in Rule 144 under the Securities Act) of the Company or acting on behalf of an affiliate of the Company.

Rule 501(a), in relevant part, states that an “accredited investor” shall mean any person who comes within any of the below listed categories, or who the issuer reasonably believes comes within any of the below listed categories, at the time of the sale of the securities to that person. Subscriber has indicated, by marking and initialing the appropriate box below, the provision(s) below which apply to Subscriber and under which Subscriber accordingly qualifies as an “accredited investor.”

(For purposes of determining net worth, exclude the value of your primary residence as well as the amount of indebtedness secured by your primary residence, up to the fair market value. Any amount in excess of the fair market value of your primary residence must be included as a liability. In the event the indebtedness on your primary residence was increased in the 60 days preceding the completion of this Agreement, the amount of the increase must be included as a liability in the net worth calculation. For this purpose, “joint net worth” can be the aggregate net worth of the investor and spouse or spousal equivalent; assets need not be held jointly to be included in the calculation. Reliance on the joint net worth standard described herein does not require that the securities be purchased jointly. For this purpose, “spousal equivalent” means a cohabitant occupying a relationship generally equivalent to that of a spouse.)

WHEREAS, in connection with the Transaction, certain other institutional “accredited investors” (within the meaning of Rule 501(a) under the Securities Act of 1933, as amended (the “Securities Act”)) or “qualified institutional buyers” (within the meaning of Rule 144A under the Securities Act) (the “Other Subscribers”) or “accredited investors” (within the meaning of National Instrument 45-106 Prospectus Exemptions of the Canadian Securities Administrators (“NI 45-106”)) are entering into separate subscription agreements with the Company (“Other Subscription Agreements”) substantially similar to this Subscription Agreement, pursuant to which such Other Subscribers, and Subscriber pursuant to this Subscription Agreement, have agreed, severally and not jointly, to purchase on the closing date of the Transaction (the “Closing Date”) an aggregate of up to 10,000,000 shares of Common Stock at the Per Share Price (the “Offering”).

2.1.4 The Subscriber (i) is a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act) or an “accredited investor” (within the meaning of Rule 501(a) under the Securities Act), in each case, satisfying the applicable requirements set forth on Schedule A, and is an “accredited investor” pursuant to Section 2.3 of NI 45-106 or, if a resident in Ontario, Section 73.3(2) of the Securities Act (Ontario), as set out in Schedule B attached hereto and is a “permitted client” (as defined in National Instrument 31-103 – Registration Requirements, Exemptions and Ongoing Registrant Obligations) as set out in Schedule C attached hereto; (ii) is acquiring all of the Securities only for his, her or its own account and not for the account of others, or if the Subscriber, or the investment advisor to which Subscriber has delegated decision making authority over its investments, is subscribing for the Securities as a fiduciary or agent for one or more investment accounts, the Subscriber has full investment discretion with respect to each such account, and the full power and authority to make the acknowledgements, representations and agreements herein on behalf of each owner of each such account, and (iii) is acquiring the Securities for investment purposes only and not with a view to, or for offer or sale in connection with, any distribution thereof in violation of the Securities Act or the laws of any jurisdiction, including, for greater certainty, as applicable, the securities laws, regulations and rules, and the blanket rulings and policies and written interpretations of, and multilateral or national instruments adopted by, the securities regulatory authorities of the Canadian jurisdiction in which a Subscriber is resident or is subject to, as the context may require, (“Canadian Securities Laws”) (and shall provide the requested information set forth on Schedule A). If the Subscriber is an entity, the Subscriber is not an entity formed for the specific purpose of acquiring the Securities. If a Subscriber is subscribing as agent or trustee for a principal (beneficial Subscriber) (a “Disclosed Principal”) and not purchasing as trustee or agent for accounts fully managed by it), it has disclosed the name of the Disclosed Principal to the Company and acknowledges that the Company may be required by law to disclose to certain regulatory authorities the identity of each Disclosed Principal for whom the Subscriber is acting. In the case of a subscription for the Securities by a Subscriber acting as trustee or agent for a fully managed account or as agent for a Disclosed Principal, the Subscriber is duly authorized to execute and deliver this Subscription Agreement and all other necessary documentation in connection with such subscription on behalf of the fully managed account or Disclosed Principal, as applicable, and this Subscription Agreement has been duly authorized, executed and delivered by or on behalf of and constitutes a legal, valid and binding agreement of, the fully managed account or Disclosed Principal, as applicable.

2.1.5 Subscriber understands and agrees that the Securities are being offered in a transaction not involving any public offering within the meaning of the Securities Act and that the Securities have not been registered under the Securities Act. Subscriber understands and agrees that the Securities may not be resold, transferred, pledged or otherwise disposed of by Subscriber absent an effective registration statement under the Securities Act with respect to the Securities except (i) to the Company or a subsidiary thereof, or (ii) pursuant to another applicable exemption from the registration requirements of the Securities Act that is available and that any book entries representing the Securities shall contain a restrictive legend to such effect. Subscriber understands and agrees that the Securities will not be eligible for resale pursuant to Rule 144A promulgated under the Securities Act. Subscriber understands and agrees that the Securities will be subject to the foregoing transfer restrictions and, as a result of these transfer restrictions, Subscriber may not be able to readily resell the Securities and may be required to bear the financial risk of an investment in the Securities for an indefinite period of time. Subscriber understands that it has been advised to consult legal, tax and accounting counsel prior to making any offer, resale, transfer, pledge or other disposition of any of the Securities. Notwithstanding the foregoing, the Subscriber will consult its own legal advisors with respect to trading in the Securities when issued and with respect to the resale restrictions imposed by the Canadian Securities Laws of the jurisdiction in which the Subscriber resides and other applicable securities laws, and acknowledges and agrees that no representation has been made respecting the applicable hold periods imposed by the Canadian Securities Laws or other resale restrictions applicable to such securities which restrict the ability of the Subscriber (or others for whom it is contracting hereunder) to resell such securities, that the Subscriber (or others for whom it is contracting hereunder) is solely responsible to find out what these restrictions are and the Subscriber is solely responsible (and the Company is not in any way responsible) for compliance with applicable resale restrictions and the Subscriber is aware that it (or disclosed principals for whom it is contracting hereunder) may not be able to resell such securities except in accordance with limited exemptions under the Canadian Securities Laws and other applicable securities laws. The Subscriber further understands and acknowledges that (i) the Company is not a reporting issuer in any province or territory in Canada and its securities are not listed on any stock exchange in Canada and there is currently no public market for the Securities in Canada; and (ii) the Company currently has no intention of becoming a reporting issuer in Canada and the Company is not obligated to file and has no present intention of filing a prospectus with any securities regulatory authority in Canada to qualify the resale of the Securities to the public, or listing the Company’s securities on any stock exchange in Canada and thus the applicable restricted period or hold period may not commence and the Securities may be subject to an unlimited hold period or restricted period in Canada and in that case may only be sold pursuant to limited exemptions under applicable securities legislation.

2.1.8 In making its decision to purchase the Securities, Subscriber represents that it has relied solely upon independent investigation made by Subscriber and the representations, warranties, and covenants of the Company contained in this Subscription Agreement. Subscriber acknowledges and agrees that Subscriber has received and has had an adequate opportunity to review, such financial and other information as Subscriber deems necessary in order to make an investment decision with respect to the Securities and made its own assessment and is satisfied concerning the relevant tax and other economic considerations relevant to Subscriber’s investment in the Securities. Without limiting the generality of the foregoing, Subscriber acknowledges that it has had the opportunity to review the documents provided to Subscriber by the Company, including (collectively, the “Disclosure Documents”): (i) the final prospectus of the Company, dated as of July 16, 2021 and filed with the Securities and Exchange Commission (the “Commission”) (File Nos. 333-256578) (the “Prospectus”), (ii) each SEC Document (as defined below) through the date of this Subscription Agreement, (iii) the Transaction Agreement, a copy of which will be filed by the Company with the Commission and (iv) the investor presentation by the Company and Nauticus (the “Investor Presentation”), a copy of which will be furnished by the Company to the Commission and to any Canadian securities regulatory authority as may be required under Canadian Securities Laws. Subscriber represents and agrees that Subscriber and its professional advisor(s), if any, have had the full opportunity to ask the Company’s management questions, receive such answers and obtain such information as Subscriber and its professional advisor(s), if any, have deemed necessary to make an investment decision with respect to the Securities. The Subscriber further acknowledges that the information contained in the Disclosure Documents is subject to change, and that any changes to the information contained in the Disclosure Documents, including any changes based on updated information or changes in terms of the Transaction, shall in no way affect Subscriber’s obligation to purchase the Securities hereunder, except as otherwise provided herein, and that, in purchasing the Securities, Subscriber is not relying upon any projections contained in the Investor Presentation. Subscriber acknowledges and agrees that (i) it has not relied on any statements or other information provided by Coastal Equities, Inc. (the “Placement Agent”) or any of the Placement Agent’s affiliates with respect to its decision to invest in the Securities, including information related to the Company, Nauticus, the Securities and the offer and sale of the Securities, (ii) neither the Placement Agent, nor any of the Placement Agent’s affiliates has provided Subscriber with any information or advice with respect to the Securities, nor is such information or advice necessary or desired, and (iii) neither the Placement Agent nor any of the Placement Agent’s affiliates has prepared any disclosure or offering document in connection with the offer and sale of the Securities. Neither the Placement Agent nor any of the Placement Agent’s affiliates has made or makes any representation as to the Company, Nauticus or the quality or value of the Securities and the Placement Agent and its affiliates may have acquired non-public information with respect to the Company which Subscriber agrees need not be provided to it. Subscriber agrees the Placement Agent shall not be liable to Subscriber for any action heretofore or hereafter taken or omitted to be taken by it in connection with Subscriber’s purchase of the Securities. The Subscriber acknowledges that, except for the Investor Presentation, it has not received or been provided with, nor has it requested, nor does it have any need to receive, any offering memorandum (within the meaning of Canadian Securities Laws), any prospectus, sales or advertising literature, or any other document describing or purporting to describe the Company, Nauticus, their business and affairs or the transactions contemplated herein (including the Transaction) which has been prepared for delivery to, and review by , prospective investors in order to assist them in making an investment decision in respect of the Securities.

2.1.19 The funds representing the Subscriber’s Purchase Price which will be advanced by the Subscriber to the Company hereunder, as applicable, will not represent proceeds of crime for the purposes of the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (Canada) (the “PCMLTFA”) and the Subscriber acknowledges that the Company may in the future be required by law to disclose the Subscriber’s name and other information relating to this Subscription Agreement and the Subscriber’s subscription hereunder, on a confidential basis, pursuant to the PCMLTFA. To the best of its knowledge (i) none of the Subscriber’s Purchase Price to be provided by the Subscriber (A) have been or will be derived from or related to any activity that is deemed criminal under the laws of Canada, the United States of America or any other jurisdiction, or (B) are being tendered on behalf of a person or entity who has not been identified to the Subscriber, and (ii) it shall promptly notify the Company if the Subscriber discovers that any of such representations ceases to be true, and to provide the Company with appropriate information in connection therewith.

2.1.20 The Subscriber acknowledges that the Company has advised the Subscriber that the Subscriber is relying on an exemption from the requirements to provide the Subscriber with a prospectus under Canadian Securities Laws and, as a consequence of acquiring the Securities pursuant to these exemptions, certain protections, rights and remedies provided by Canadian Securities Laws, including applicable statutory rights of rescission or damages, will not be available to the Subscriber.

2.2.4 The execution, delivery and performance of this Subscription Agreement (including compliance by the Company with all of the provisions hereof), the issuance and sale of the Securities and the consummation of the certain other transactions contemplated herein will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any of the property or assets of the Company pursuant to the terms of any indenture, mortgage, deed of trust, loan agreement, lease, license or other agreement or instrument to which the Company is a party or by which the Company is bound or to which any of the property or assets of the Company is subject, which would, individually or in the aggregate, reasonably be expected to have a material adverse effect on the business, properties, assets, liabilities, operations, financial condition, stockholders’ equity or results of operations of the Company or materially and adversely affect the validity of the Securities or the legal authority or ability of the Company to comply in all material respects with the terms of this Subscription Agreement (a “Material Adverse Effect”); (ii) result in any violation of the provisions of the organizational documents of the Company in any material respect; or (iii) result in any violation of any statute or any judgment, order, rule or regulation of any Authority, having jurisdiction over the Company or any of its properties that would reasonably be expected to have a Material Adverse Effect.

2.2.9 Assuming the accuracy of Subscriber’s representations and warranties set forth in this Subscription Agreement, no registration under the Securities Act or Canadian Securities Laws is required for the offer and sale of the Common Stock by the Company to Subscriber and the Common Stock is not being offered in a manner involving a public offering under, or in a distribution in violation of, the Securities Act or any state securities laws or Canadian Securities Laws.

2.2.12 The Company is not, and immediately after receipt of payment for the Securities will not be, an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

3.2.1 The Closing shall be subject to the satisfaction or valid waiver by the Company, on the one hand, or Subscriber, on the other, of the conditions that, on the Closing Date:

(i) No suspension of the qualification of the Securities for offering or sale or trading of the Common Stock on the Nasdaq Capital Market (“Nasdaq”) shall have occurred and be continuing.

3.2.2 The Closing shall also be subject to the satisfaction or valid waiver by the Subscriber of the conditions that, on the Closing Date:

(i) The Company shall have performed, satisfied and complied in all material respects with all agreements, cnditions and covenants required by this Subscription Agreement to be performed by the Company at or prior to the Closing.

(vi) From and after the date hereof, there shall have not occurred a Material Adverse Effect. which is continuing and uncured.

3.2.3 The Closing shall also be subject to the satisfaction or valid waiver by the Company of the conditions that, on the Closing Date:

4.1 After the Closing, the Securities may only be resold, transferred, pledged or otherwise disposed of in compliance with Canadian Securities Laws and state and federal securities laws and pursuant to an effective registration statement, Rule 144 under the Securities Act (“Rule 144”) or pursuant to another applicable exemption from the registration requirements of the Securities Act, to the Company or to an affiliate of Subscriber. As a condition of transfer (other than pursuant to an effective registration statement pursuant to Rule 144 or pursuant to another applicable exemption from the registration requirements of the Securities Act), any such transferee shall agree in writing to be bound by the terms of this Subscription Agreement and shall have the rights and obligations of Subscriber under this Agreement.

4.3 Subject to applicable requirements of Canadian Securities Laws, the Securities Act and the interpretations of the Commission thereunder and any requirements of the Company’s transfer agent, the Company shall use commercially reasonable efforts to ensure that instruments, whether certificated or uncertificated, evidencing the Securities shall not contain any legend (including the legend set forth in Section 4.4 below) (i) following any sale of such Securities pursuant to Rule 144, (ii) if such Securities are eligible for sale under Rule 144 without the requirement for the Company to be in compliance with the current public information required under Rule 144 and without volume or manner-of-sale restrictions, and in each case, Subscriber provides the Company with an undertaking to effect any sales or other transfers in accordance with the Securities Act, or (iii) if such legend is not required under applicable requirements of the Securities Act (including judicial interpretations and pronouncements issued by the staff of the Commission).

4.4 Subscriber agrees to the imprinting, so long as is required by this Section 4, of a legend on any of the Securities in the following form:

In addition, the Subscriber agrees to imprinting the following legend on the Securities and in the event that no physical certificates are issued, the below constitutes written notice of the legend restriction under applicable Canadian Securities Laws:

UNLESS PERMITTED UNDER SECURITIES LEGISLATION, THE HOLDER OF THIS SECURITY MUST NOT TRADE THE SECURITY BEFORE THE DATE THAT IS 4 MONTHS AND A DAY AFTER THE LATER OF (I) [INSERT THE DISTRIBUTION DATE], AND (II) THE DATE THE ISSUER BECAME A REPORTING ISSUER IN ANY PROVINCE OR TERRITORY.

6.2.3 use its commercially reasonable efforts to obtain the withdrawal of any order suspending the effectiveness of any Registration Statement as promptly as reasonably practicable;

6.2.5 use its commercially reasonable efforts to cause all Securities to be listed on each securities exchange or market, if any, on which the Common Stock issued by the Company have been listed; and

6.2.6 use its commercially reasonable efforts to take all other steps necessary to effect the registration of the Registrable Securities contemplated hereby.

6.4 The Company shall indemnify, defend and hold harmless Subscriber (to the extent a seller under the Registration Statement), and any of its officers, directors, agents, partners, members, stockholders, affiliates, managers, investment advisers and employees, and each person who controls Subscriber (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act and within the meaning of Canadian Securities Laws), to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including reasonable out-of-pocket external attorneys’ fees and expenses incurred in connection with defending or investigating any such action or claim) and expenses (collectively, “Losses”), as incurred, that arise out of or are based upon (i) any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any prospectus included in the Registration Statement or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission to state a material fact required to be stated therein or necessary to make the statements therein (in the case of any prospectus or form of prospectus or supplement thereto, in the light of the circumstances under which they were made) not misleading or (ii) any violation or alleged violation by the Company of the Securities Act, Exchange Act or any state securities law or any rule or regulation thereunder or Canadian Securities Laws, in connection with the performance of its obligations under this Section 6, except insofar as and to the extent, but only to the extent, that such untrue statements, alleged untrue statements, omissions or alleged omissions are based upon information regarding Subscriber furnished in writing to the Company by such Subscriber expressly for use therein or such Subscriber has omitted a material fact from such information or otherwise violated the Securities Act, the Exchange Act or any state securities law or any rule or regulation thereunder, in each case, in connection with the registration of the Common Stock; provided, however, that the indemnification contained in this Section 6 shall not apply to amounts paid in settlement of any Losses if such settlement is effected without the consent of the Company (which consent shall not be unreasonably withheld, conditioned or delayed), nor shall the Company be liable for any Losses to the extent they arise out of or are based upon a violation which occurs (A) in reliance upon and in conformity with written information furnished by such Subscriber, (B) in connection with any failure of such person to deliver or cause to be delivered a prospectus made available by the Company in a timely manner, (C) as a result of offers or sales effected by or on behalf of any person by means of a “free writing prospectus” (as defined in Rule 405 under the Securities Act) that was not authorized in writing by the Company, or (D) in connection with any offers or sales effected by or on behalf of such Subscriber in violation of Section 6.3 hereof. Subscriber shall notify the Company promptly of the institution of any proceeding arising from or in connection with the transactions contemplated by this Section 6 of which Subscriber becomes aware, provided that a failure by Subscriber to provide such notice shall not impact Subscriber’s right to be indemnified hereunder unless the Company is actually prejudiced thereby. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of an indemnified party and shall survive the transfer of the Securities by Subscriber.

(i) if to Subscriber, to such address or addresses set forth on the signature page hereto;

Loeb & Loeb LLP
345 Park Avenue, 19th Floor
New York, NY 10154
Attention: Giovanni Caruso
E-mail: gcaruso@loeb.com

7.13 Expenses. The Subscriber shall pay all of its own expenses in connection with this Subscription Agreement and the transactions contemplated herein.

8.3 The Subscriber acknowledges that this Subscription Agreement requires the Subscriber to provide certain personal information to the Company and its agents and advisers as reasonably necessary in connection with the transactions contemplated hereby. Such information is being collected and will be used by the Company for the purposes of completing the Offering, which includes, without limitation, determining the Subscriber’s eligibility to purchase the Securities under applicable Canadian and U.S. securities laws and completing filings required by the applicable securities commission or other securities regulatory authority. The Subscriber agrees that the Subscriber’s personal information may be disclosed by the Company to: (i) stock exchanges and applicable securities regulatory authorities, including the applicable securities commissions and Canadian securities regulatory authorities; (ii) the Company’s transfer agent; (iii) the applicable taxing authorities; and (iv) any of the other parties involved in the proposed Offering, including legal counsel, and may be included in record books in connection with the Offering. By executing and delivering this Subscription Agreement, the Subscriber consents to the foregoing collection, use, and disclosure of the Subscriber’s personal information. The Subscriber also consents to the filing of copies or originals of any of the Subscriber documents described herein as may be required to be filed with any stock exchange or securities commission or Canadian regulatory authorities in connection with the transactions contemplated hereby. In the event the Subscriber has any questions with respect to the indirect collection of such information by Canadian securities regulatory authorities and regulators, the Subscriber should contact the applicable securities regulatory authority or regulator using the contact information set forth in Schedule D attached hereto. If required by applicable Canadian Securities Laws or the Company, the Subscriber will execute, deliver and file or assist the Company in filing such reports, undertakings and other documents with respect to the issue and/or sale of the Securities as may be required by any securities commission, stock exchange or other regulatory authority.

Subscriber must pay the Purchase Price by wire transfer of U.S. dollars in immediately available funds to the account specified by the Company in the Closing Notice.

If Subscriber wants certificated Securities rather than book-entry form, indicate here: ________

This Schedule A should be completed by Subscriber
and constitutes a part of the Subscription Agreement.

an “affiliate” (as defined in Rule 144 under the Securities Act) of the Company or acting on behalf of an affiliate of the Company.

This Schedule B should be completed by Subscriber
and constitutes a part of the Subscription Agreement.

TO BE COMPLETED BY SUBSCRIBERS RESIDENT IN OR SUBJECT TO THE LAWS OF A JURISDICTION OF CANADA

The categories listed herein contain certain specifically defined terms. If you are unsure as to the meanings of those terms, or are unsure as to the applicability of any category below, please contact your broker and/or legal advisor before completing this certificate.

In connection with the purchase by the undersigned Subscriber, on its own behalf and on behalf of each Disclosed Principal for whom the Subscriber is acting, hereby represents, warrants, covenants and certifies to the Company (and acknowledges that the Company and its counsel are relying thereon) that:

☐	(a)	a Canadian financial institution, or a Schedule III bank;

☐	(b)	the Business Development Bank of Canada incorporated under the Business Development Bank of Canada Act (Canada);

☐	(c)	a subsidiary of any person referred to in paragraphs (a) or (b), if the person owns all of the voting securities of the subsidiary, except the voting securities required by law to be owned by directors of that subsidiary;

☐	(d)	a person registered under the securities legislation of a jurisdiction of Canada as an adviser or dealer;

☐	(e)	an individual registered under the securities legislation of a jurisdiction of Canada as a representative of a person referred to in paragraph (d);

☐	(e.1)	an individual formerly registered under the securities legislation of a jurisdiction of Canada, other than an individual formerly registered solely as a representative of a limited market dealer under one or both of the Securities Act (Ontario) or the Securities Act (Newfoundland and Labrador);

☐	(f)	the Government of Canada or a jurisdiction of Canada, or any crown corporation, agency or wholly owned entity of the Government of Canada or a jurisdiction of Canada;

☐	(g)	a municipality, public board or commission in Canada and a metropolitan community, school board, the Comité de gestion de la taxe scolaire de l’île de Montréal or an intermunicipal management board in Québec;

☐	(h)	any national, federal, state, provincial, territorial or municipal government of or in any foreign jurisdiction, or any agency of that government;

☐	(i)	a pension fund that is regulated by either the Office of the Superintendent of Financial Institutions (Canada) or a pension commission or similar regulatory authority of a jurisdiction of Canada;

☐	(j)	an individual who, either alone or with a spouse, beneficially owns, directly or indirectly, financial assets having an aggregate realizable value that before taxes, but net of any related liabilities, exceeds C$1,000,000;

		[Subscriber must complete Appendix 1 to Schedule B – Form 45-106F9 Risk Acknowledgement Form for Certain Accredited Investors]

☐	(j.1)	an individual who beneficially owns financial assets having an aggregate realizable value that, before taxes but net of any related liabilities, exceeds C$5,000,000;

		[Subscriber must complete Appendix 1 to Schedule B – Form 45-106F9 Risk Acknowledgement Form for Certain Accredited Investors]

For the purposes hereof, the following definitions are included for convenience:

In NI 45-106 a person or company is considered to be an affiliated entity of another person or company if one is a subsidiary entity of the other, or if both are subsidiary entities of the same person or company, or if each of them is controlled by the same person or company.

In NI 45-106 a person (first person) is considered to control another person (second person) if (a) the first person, directly or indirectly, beneficially owns or exercises control or direction over securities of the second person carrying votes which, if exercised, would entitle the first person to elect a majority of the directors of the second person, unless that first person holds the voting securities only to secure an obligation, (b) the second person is a partnership, other than a limited partnership, and the first person holds more than 50% of the interests of the partnership, or (c) the second person is a limited partnership and the general partner of the limited partnership is the first person.

The foregoing representations contained in this certificate are true and accurate as of the date of this certificate and will be true and accurate as of the Closing Date. If any such representations shall not be true and accurate prior to the Closing Date, the undersigned shall give immediate written notice of such fact to the Company prior to the Closing Date.

APPENDIX 1 TO SCHEDULE B

RISK ACKNOWLEDGEMENT FORM (FORM 45-106F9) FOR CERTAIN ACCREDITED INVESTORS

This form must be completed by “accredited investors” who have checked boxes (j), (j.1), (k), (l) or (t) of Schedule B, and by any other accredited investors that the Company directs to complete this form.

WARNING!

This investment is risky. Do not invest unless you can afford to lose all the money you pay for this investment

This Schedule C should be completed by Subscriber
and constitutes a part of the Subscription Agreement.

TO BE COMPLETED BY SUBSCRIBERS RESIDENT IN OR SUBJECT TO THE LAWS OF A JURISDICTION OF CANADA

Alberta Securities Commission, Suite 600, 250 – 5th Street SW, Calgary, Alberta T2P 0R4, Telephone: (403) 297-6454, Toll free in Canada: 1-877-355-0585, Facsimile: (403) 297-2082, Public official contact: FOIP Coordinator

British Columbia Securities Commission, P.O. Box 10142, Pacific Centre, 701 West Georgia Street, Vancouver, British Columbia V7Y 1L2, Inquiries: (604) 899-6854, Toll free in Canada: 1-800-373-6393, Facsimile: (604) 899-6581, Email: FOI-privacy@bcsc.bc.ca, Public official contact: FOI Inquiries

The Manitoba Securities Commission, 500 – 400 St. Mary Avenue, Winnipeg, Manitoba R3C 4K5, Telephone: (204) 945-2561, Toll free in Manitoba 1-800-655-5244, Facsimile: (204) 945-0330, Public official contact: Director,

Financial and Consumer Services Commission (New Brunswick), 85 Charlotte Street, Suite 300, Saint John, New Brunswick E2L 2J2, Telephone: (506) 658-3060, Toll free in Canada: 1-866-933-2222, Facsimile: (506) 658-3059, Email: info@fcnb.ca, Public official contact: Chief Executive Officer and Privacy Officer

Government of Newfoundland and Labrador, Financial Services Regulation Division, P.O. Box 8700, Confederation Building, 2nd Floor, West Block, Prince Philip Drive, St. John’s, Newfoundland and Labrador A1B 4J6, Attention: Director of Securities, Telephone: (709) 729-4189, Facsimile: (709) 729-6187, Public official contact: Superintendent of Securities

Government of the Northwest Territories, Office of the Superintendent of Securities, P.O. Box 1320, Yellowknife, Northwest Territories X1A 2L9, Telephone: (867) 767-9305, Facsimile: (867) 873-0243, Public official contact: Superintendent of Securities

Nova Scotia Securities Commission, Suite 400, 5251 Duke Street, Duke Tower, P.O. Box 458, Halifax, Nova Scotia B3J 2P8, Telephone: (902) 424-7768, Facsimile: (902) 424-4625, Public official contact: Executive Director

Ontario Securities Commission, 20 Queen Street West, 22nd Floor, Toronto, Ontario M5H 3S8, Telephone: (416) 593- 8314, Toll free in Canada: 1-877-785-1555, Facsimile: (416) 593-8122, Email: exemptmarketfilings@osc.gov.on.ca, Public official contact: Inquiries Officer

Prince Edward Island Securities Office, 95 Rochford Street, 4th Floor Shaw Building, P.O. Box 2000, Charlottetown, Prince Edward Island C1A 7N8, Telephone: (902) 368-4569, Facsimile: (902) 368-5283, Public official contact: Superintendent of Securities

Autorité des marchés financiers, 800, Square Victoria, 22e étage, C.P. 246, Tour de la Bourse, Montréal, Québec H4Z 1G3, Telephone: (514) 395-0337 or 1-877-525-0337, Facsimile: (514) 873-6155 (For filing purposes only), Facsimile: (514) 864-6381 (For privacy requests only), Email: financementdessocietes@lautorite.qc.ca (For corporate finance issuers), Email: fonds_dinvestissement@lautorite.qc.ca (For investment fund issuers), Public official contact: Secrétaire générale

Financial and Consumer Affairs Authority of Saskatchewan, Suite 601 - 1919 Saskatchewan Drive, Regina, Saskatchewan S4P 4H2, Telephone: (306) 787-5879, Facsimile: (306) 787-5899, Public official contact: Director

Government of Yukon, Department of Community Services, Office of the Superintendent of Securities, 307 Black Street, Whitehorse, Yukon Y1A 2N1, Telephone: 867-667-5466; Facsimile: (867) 393-6251, Email: securities@gov.yk.ca, Public official contact: Superintendent of Securities

Government of Nunavut, Department of Justice, Legal Registries Division, P.O. Box 1000, Station 570, 1st Floor, Brown Building, Iqaluit, Nunavut X0A 0H0, Telephone: (867) 975-6590; Facsimile: (867) 975-6594, Public official contact: Superintendent of Securities

	CLEANTECH ACQUISITION CORP.

	By:
		Name:
		Title:

Acknowledged:

NAUTICUS ROBOTICS, INC.

By:
	Name:
	Title:

SUBSCRIBER:

Name of Subscriber:		Name of Joint Subscriber, if applicable


{Please print}		{Please print}

Signature of Subscriber:		Signature of Joint Subscriber, if applicable:

By:		By:
	Name:		Name:
	Title:		Title:

If there are joint investors, please check one:

☐ Joint Tenants with Rights of Survivorship
☐ Community Property
☐ Tenants-in-Common

Subscriber’s EIN:________________________		Joint Subscriber’s EIN: ___________________

Business Address-Street:		Mailing Address-Street (if different):

_____________________________________		_____________________________________
_____________________________________		_____________________________________

City, State, Zip:_________________________		City, State, Zip: ________________________
Attn: ________________________________		Attn: ____________ ____________________
Telephone No.: _________________________		Telephone No.: _________________________
Facsimile No: __________________________		Facsimile No: __________________________
Email Address: _________________________		Email Address: _________________________

Name of Subscriber:		Name of Joint Subscriber, if applicable
_______________________________________		_______________________________________
{Please print}		{Please print}

Signature of Subscriber:		Signature of Joint Subscriber, if applicable:

By:		By:
	Name:		Name:
	Title:		Title:

Aggregate Number of shares of Common Stock subscribed for:

☐	(k)	an individual whose net income before taxes exceeded C$200,000 in each of the two most recent calendar years or whose net income before taxes combined with that of a spouse exceeded C$300,000 in each of the two most recent calendar years and who, in either case, reasonably expects to exceed that net income level in the current calendar year;

		[Subscriber must complete Appendix 1 to Schedule B – Form 45-106F9 Risk Acknowledgement Form for Certain Accredited Investors]

☐	(l)	an individual who, either alone or with a spouse, has net assets of at least C$5,000,000;

		[Subscriber must complete Appendix 1 to Schedule B – Form 45-106F9 Risk Acknowledgement Form for Certain Accredited Investors]

☐	(m)	a person, other than an individual or investment fund, that has net assets of at least C$5,000,000 as shown on its most recently prepared financial statements;

☐	(n)	an investment fund that distributes or has distributed its securities only to (i) a person that is or was an accredited investor at the time of the distribution, (ii) a person that acquires or acquired securities in the circumstances referred to in sections 2.10 [Minimum amount investment] and 2.19 [Additional investment in investment funds] of NI 45-106, or (iii) a person described in paragraph (i) or (ii) that acquires or acquired securities under section 2.18 [Investment fund reinvestment] of NI 45-106;

☐	(o)	an investment fund that distributes or has distributed securities under a prospectus in a jurisdiction of Canada for which the regulator or, in Québec, the securities regulatory authority, has issued a receipt;

☐	(p)	a trust company or trust corporation registered or authorized to carry on business under the Trust and Loan Companies Act (Canada) or under comparable legislation in a jurisdiction of Canada or a foreign jurisdiction, acting on behalf of a fully managed account managed by the trust company or trust corporation, as the case may be;

☐	(q)	a person acting on behalf of a fully managed account managed by that person, if that person is registered or authorized to carry on business as an adviser or the equivalent under the securities legislation of a jurisdiction of Canada or a foreign jurisdiction;

☐	(r)	a registered charity under the Income Tax Act (Canada) that, in regard to the trade, has obtained advice from an eligibility adviser or an adviser registered under the securities legislation of the jurisdiction of the registered charity to give advice on the securities being traded;

☐	(s)	an entity organized in a foreign jurisdiction that is analogous to any of the entities referred to in paragraphs (a) to (d) or paragraph (i) in form and function;

☐	(t)	a person in respect of which all of the owners of interests, direct, indirect or beneficial, except the voting securities required by law to be owned by directors, are persons that are accredited investors;

		[Each owner of interest must complete Appendix 1 to Schedule B – Form 45-106F9 Risk Acknowledgement Form for Certain Accredited Investors]

☐	(u)	an investment fund that is advised by a person registered as an adviser or a person that is exempt from registration as an adviser;

☐	(v)	a person that is recognized or designated by the securities regulatory authority or, except in Ontario and Québec, the regulator as an accredited investor; or

☐	(w)	a trust established by an accredited investor for the benefit of the accredited investor’s family members of which a majority of the trustees are accredited investors and all of the beneficiaries are the accredited investor’s spouse, a former spouse of the accredited investor or a parent, grandparent, brother, sister, child or grandchild of that accredited investor, of that accredited investor’s spouse or of that accredited investor’s former spouse.

Dated:			Signed:


Witness (If Subscriber is an Individual)			Print the name of Subscriber

Print Name of Witness			If Subscriber is a corporation, print name and title of Authorized Signing Officer

Section 1 – TO BE COMPLETED BY THE ISSUER OR SELLING SECURITY HOLDER
1. About your investment
Type of Securities: Common shares	Issuer: CleanTech Acquisition Corp. (the “Issuer”)
Purchased from: The Issuer
Sections 2 to 4 – TO BE COMPLETED BY THE SUBSCRIBER
2. Risk acknowledgement
This investment is risky. Initial that you understand that:		Your Initials
Risk of loss – You could lose your entire investment of $ ___________ [Insert total dollar amount of the Investment]
Liquidity risk – You may not be able to sell your investments quickly – or at all.
Lack of information – You may receive little or no information about your investment.
Lack of advice – You will not receive advice from the salesperson about whether this investment is suitable for you unless the salesperson is registered. The salesperson is the person who meets with, or provides information to, you about making this investment. To check whether the salesperson is registered, go to www.aretheyregistered.ca.

3. Accredited investor status
You must meet at least one of the following criteria to be able to make this investment. Initial the statement that applies to you. (You may initial more than one statement.) The person identified in section 6 is responsible for ensuring that you meet the definition of accredited investor. That person, or the salesperson identified in section 5, can help you if you have questions about whether you meet these criteria.		Your Initials
· Your net income before taxes was more than $200,000 in each of the 2 most recent calendar years, and you expect it to be more than $200,000 in the current calendar year. (You can find your net income before taxes on your personal income tax return.)
· Your net income before taxes combined with your spouse’s was more than $300,000 in each of the 2 most recent calendar years, and you expect your combined net income before taxes to be more than $300,000 in the current calendar year.
· Either alone or with your spouse, you own more than $1 million in cash and securities, after subtracting any debt related to the cash and securities.
· Either alone or with your spouse, you have net assets worth more than $5 million. (Your net assets are your total assets (including real estate) minus your total debt.)
4. Your name and signature
By signing this form, you confirm that you have read this form and you understand the risks of making this investment as identified in this form.
First and Last Name (please print):
Signature:
Date:
Section 5 – TO BE COMPLETED BY THE SALESPERSON
5. Salesperson information
[Instruction: The salesperson is the person who meets with, or provides information to, the Subscriber with respect to making this investment. That could include a representative of the issuer or selling security holder, a registrant or a person who is exempt from the registration requirement.]
First and Last Name of Salesperson (please print):
Telephone:	Email:
Name of Firm (if registered):

☐	(a)	a Canadian financial institution or a Schedule III bank;

☐	(b)	the Business Development Bank of Canada incorporated under the Business Development Bank of Canada Act (Canada);

☐	(c)	a subsidiary of any person or company referred to in paragraph (a) or (b), if the person or company owns all of the voting securities of the subsidiary, except the voting securities required by law to be owned by directors of the subsidiary;
☐	(d)	a person or company registered under the securities legislation of a jurisdiction of Canada as an adviser, investment dealer, mutual fund dealer or exempt market dealer;

☐	(e)	a pension fund that is regulated by either the Office of the Superintendent of Financial Institutions or a pension commission or similar regulatory authority of a jurisdiction of Canada or a wholly-owned subsidiary of such a pension fund;

☐	(f)	an entity organized in a foreign jurisdiction that is analogous to any of the entities referred to in paragraphs (a) through (e);