Document:

Amended and Restated Note Purchase Agreement

 Exhibit 10.1 

AMENDED AND RESTATED 

NOTE PURCHASE AGREEMENT 

BY AND AMONG 
 EPSILON
ACQUISITIONS LLC, 
 ODYSSEY MARINE ENTERPRISES, LTD. 

AND 
 ODYSSEY MARINE
EXPLORATION, INC. 
 DATED AS OF MARCH 18, 2016 

AMENDED AND RESTATED AS OF OCTOBER 1, 2016 

 TABLE OF CONTENTS 

 

							
	ARTICLE I.	  
	ISSUANCE AND SALE OF NOTE; CLOSING	  
			
	Section 1.1.	 	 Loans
	  	 	1	  
	Section 1.2.	 	 Procedures for Borrowing
	  	 	1	  
	Section 1.3.	 	 Repayment of Loans
	  	 	1	  
	Section 1.4.	 	 Deliveries Upon Execution
	  	 	2	  
	Section 1.5.	 	 Loan Closings
	  	 	2	  
	Section 1.6.	 	 Deliveries at the Closings
	  	 	3	  
	
	ARTICLE II.	  
	REPRESENTATIONS AND WARRANTIES OF THE PARENT AND THE COMPANY	  
			
	Section 2.1.	 	 Organization, Existence and Good Standing
	  	 	4	  
	Section 2.2.	 	 Authorization
	  	 	4	  
	Section 2.3.	 	 No Conflict or Violation
	  	 	5	  
	Section 2.4.	 	 Governmental Consents and Approvals
	  	 	5	  
	Section 2.5.	 	 Capitalization and Voting Rights
	  	 	6	  
	Section 2.6.	 	 Subsidiaries
	  	 	7	  
	Section 2.7.	 	 Oceanica
	  	 	7	  
	Section 2.8.	 	 Parent Reports; Financial Statements; Undisclosed Liabilities
	  	 	9	  
	Section 2.9.	 	 Orders and Proceedings
	  	 	10	  
	Section 2.10.	 	 Compliance
	  	 	10	  
	Section 2.11.	 	 Receivables
	  	 	11	  
	Section 2.12.	 	 Anti-Corruption; Anti-Money Laundering
	  	 	11	  
	Section 2.13.	 	 Brokers
	  	 	11	  
	Section 2.14.	 	 Offering
	  	 	12	  
	Section 2.15.	 	 Anti-Takeover Provisions
	  	 	12	  
	
	ARTICLE III.	  
	REPRESENTATIONS AND WARRANTIES OF THE LENDER	  
			
	Section 3.1.	 	 Organization, Existence and Good Standing
	  	 	12	  
	Section 3.2.	 	 Authorization
	  	 	12	  
	Section 3.3.	 	 Receipt of Information
	  	 	13	  
	Section 3.4.	 	 Investment Experience
	  	 	13	  
	Section 3.5.	 	 Qualifications of Lender
	  	 	13	  
	Section 3.6.	 	 Restricted Securities
	  	 	13	  
	
	ARTICLE IV.	  
	MISCELLANEOUS	  
			
	Section 4.1.	 	 Rules of Construction
	  	 	14	  
	Section 4.2.	 	 Entire Agreement
	  	 	15	  
	Section 4.3.	 	 Notices
	  	 	15	  
	Section 4.4.	 	 Fees, Costs and Expenses
	  	 	16	  
	Section 4.5.	 	 Publicity and Reports
	  	 	16	  

  
 ( i ) 

							
	Section 4.6.	 	 Amendments; Waiver
	  	 	16	  
	Section 4.7.	 	 Binding Effect; Assignment
	  	 	17	  
	Section 4.8.	 	 No Third-Party Beneficiaries
	  	 	17	  
	Section 4.9.	 	 No Recourse Against Nonparty Affiliates
	  	 	17	  
	Section 4.10.	 	 Governing Law
	  	 	18	  
	Section 4.11.	 	 Exclusive Forum in Designated Courts
	  	 	18	  
	Section 4.12.	 	 Consent to Service of Process
	  	 	18	  
	Section 4.13.	 	 Waiver of Jury Trial
	  	 	19	  
	Section 4.14.	 	 Specific Performance
	  	 	19	  
	Section 4.15.	 	 Remedies Cumulative
	  	 	19	  
	Section 4.16.	 	 Counterparts
	  	 	19	  
	Section 4.17.	 	 Signatures/E-delivery; Reproduction of Documents
	  	 	19	  
	Section 4.18.	 	 Severability
	  	 	19	  
	Section 4.19.	 	 Adjustments for Share Splits, etc.
	  	 	20	  
	Section 4.20.	 	 Release
	  	 	20	  

  
 ( ii ) 

 ADDENDA 

ANNEXES 
  

			
	Annex A	  	Definitions
		
	Annex B	  	Cross Reference Sheet of Terms Defined Herein

 EXHIBITS – FORMS OF 
  

			
	Exhibit A	  	Note
		
	Exhibit B	  	A&R OME Pledge Agreement
		
	Exhibit C	  	A&R MEH-Parent Pledge Agreement
		
	Exhibit D	  	A&R Registration Rights Agreement

  
 ( iii ) 

 AMENDED AND RESTATED NOTE PURCHASE AGREEMENT 

THIS AMENDED AND RESTATED NOTE PURCHASE AGREEMENT (this “Agreement”) is made and entered into as of March 18, 2016,
amended and restated as of October 1, 2016, by and among Odyssey Marine Exploration Inc., a Nevada corporation (the “Parent”), Odyssey Marine Enterprises, Ltd., a Bahamas company and wholly owned subsidiary of the Parent (the
“Company”), and Epsilon Acquisitions LLC, a Delaware limited liability company (the “Lender”). Capitalized terms used but not defined herein shall have the meanings ascribed to them in Annex A hereto.

RECITALS: 

WHEREAS, pursuant to that certain Note Purchase Agreement, dated as of March 18, 2016 (the “Original Note Purchase
Agreement”), by and among the Parent, the Company and the Lender, the Company issued and sold their secured convertible promissory note due March 18, 2017, in the initial principal amount of $3,000,000 (the “Original
Note”). 
 WHEREAS, on the terms and subject to the conditions set forth herein, the Lender is willing to extend additional
loans in an amount up to $3,000,000 from time to time to the Company which will be evidenced by an amended and restated secured convertible promissory note in the aggregate principal amount of $6,000,000 (the “Note”). 

NOW, THEREFORE, in consideration of the premises and for other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows: 
 ARTICLE I. 

ISSUANCE AND SALE OF NOTE; CLOSING 

Section 1.1. Loans. On the terms and subject to the conditions set forth in this Agreement, Lender commits to loan
to the Parent and its Affiliates, in one or more transactions (each such transaction, a “Loan”), up to $6,000,000, of which $3,000,000 has been advanced. The Parent has irrevocably instructed Lender that any Loan shall be made
directly to the Company. The Company’s obligation to repay the Loan will be evidenced by the Note in the form attached hereto as Exhibit A. The Note will be guaranteed by the Parent pursuant to Section 8 of the Note. 

Section 1.2. Procedures for Borrowing. The Company may borrow under the Revolving Credit Commitment on any Business Day
during the Revolving Credit Commitment Period; provided that, the Company shall deliver to the Lender an irrevocable Borrowing Notice, which Borrowing Notice shall specify the applicable Borrowing Date Conversion Price as set forth in the Note
(which Borrowing Notice must be received by the Lender no later than 10:00 A.M. New York City time three Business Days prior to the requested Closing Date). Each Loan shall be in an amount equal to $1,000,000 or a whole multiple of $250,000 in
excess thereof. 
 Section 1.3. Repayment of Loans. The Company hereby unconditionally promises to pay to the Lender in
full in cash, to the extent not previously paid, the then-unpaid principal amount of all Loans on the Maturity Date. 

  
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 Section 1.4. Deliveries Upon Execution. 

(a) Simultaneously with the execution and delivery of this amended and restated Agreement by the parties hereto, deliver to
Lender: 
 (i) the Note; 

(ii) an amended and restated pledge agreement from the Company, pledging 54,000,000 shares of Oceanica stock (the
“Pledged Oceanica Shares”) and any receivables due from Oceanica and its Subsidiaries, to secure repayment of the Note, in the form of Exhibit B hereto (the “A&R OME Pledge Agreement”); 

(iii) an amended and restated pledge agreement from (A) Marine Exploration Holdings, LLC, a Nevada limited liability company
(“MEH”, and together with the Company, the “Intermediate Holdcos”), pledging all of the outstanding equity in the Company, and any receivables due from Oceanica and its Subsidiaries and (B) Parent, pledging all of
the outstanding equity in MEH and any receivables due from Oceanica and its Subsidiaries, to secure repayment of the Note, in the form of Exhibit C hereto (the “A&R MEH-Parent Pledge Agreement”, and together with the
A&R OME Pledge Agreement, the “Pledge Agreements”); 
 (iv) an Amended and Restated Registration Rights
Agreement in the form of Exhibit D hereto; 
 (v) a Warrant to Purchase Common Stock in the form of
Exhibit E hereto; 
 (vi) customary secretary’s certificates attaching authorizing resolutions, charter
documents and incumbency information relating to the Company, in form and substance reasonably satisfactory to the Lender; and 

(vii) all other instruments and certificates that the Parent or the Company is required to deliver pursuant to the terms of
this Agreement or the other Transaction Documents. 
 (b) Simultaneously with the execution and delivery of this Agreement by
the parties hereto, the Lender shall deliver all instruments and certificates that the Lender is required to deliver pursuant to the terms of this Agreement. 

Section 1.5. Loan Closings. 

(a) The Lender shall extend a Loan (each, a “Loan”) in the amount set forth in the Borrowing Notice with
respect to such Loan, and such Loan shall be delivered in the form of wire transfer of immediately available funds to an account designated in writing by the Company, subject to the satisfaction of the following conditions: 

(i) No “Event of Default” shall have occurred with respect to the Promissory Note, dated as of March 11, 2015
(as amended from time to time), by and among the Parent, the Company and Minera del Norte, S.A. de C.V. (the “Existing Loan”); 

  
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 (ii) the Pledged Oceanica Shares being owned by the Company free and clear of all
Liens other than a pledge securing the Existing Loan; 
 (iii) the representations and warranties set forth in
Article II shall be true and correct in all material respects at, and as of, the Closing, and there shall be no breach of, or default under, any Transaction Document by the Company or any of its Affiliates; 

(iv) trading in the Common Stock shall not have been suspended by NASDAQ; 

(v) the registration of the Existing Pledge in the Panamanian Public Registry shall be in effect and continuing and there shall
be no prior pledge registered; and 
 (vi) the Lender shall, in its sole discretion, be satisfied that the Company is
actively pursuing the Permits necessary to complete the Don Diego Project. 
 (b) The closing of any Loan (a
“Closing”) shall be held at the offices of Willkie Farr & Gallagher LLP, 787 Seventh Avenue, New York, New York at 10:00 a.m. Eastern Time on the date set forth in the Borrowing Notice with respect to such Loan;
provided, that each Closing may occur on such other date or at such other time and place as the Parent and the Lender may mutually agree in writing in their sole discretion. The date on which each Closing actually occurs is referred to as a
“Closing Date.” 
 Section 1.6. Deliveries at the Closings.

(a) At each Closing, the Parent shall, or shall cause the Company to, deliver to the Lender such documents as the Lender shall
reasonably request. 
 (b) At each Loan Closing, the Lender shall deliver: 

(i) the Loan, which shall be delivered in the form of wire transfer of immediately available funds to an account designated in
writing by the Company; and 
 (ii) all other instruments and certificates that the Lender is required to deliver pursuant to
the terms of this Agreement. 

  
 3 

 ARTICLE II. 

REPRESENTATIONS AND WARRANTIES OF THE PARENT AND THE COMPANY 

The Parent and the Company each hereby represent and warrant to the Lender the following: 

Section 2.1. Organization, Existence and Good Standing. 

(a) Each of the Parent and the Company is duly organized and is validly existing and in good standing under the Laws pursuant
to which it was formed, and has all requisite corporate or other entity power authority to carry on its businesses as now conducted and as presently proposed to be conducted. Each of the Parent and the Company is duly licensed or qualified to
transact business as a foreign corporation or other equivalent entity and is in good standing in each jurisdiction in which the nature of the business transacted by it or the character of the properties owned or leased by it requires such licensing
or qualification, except where the failure to be so licensed or qualified would not reasonably be expected to have a material adverse effect upon the Parent or the Company. 

(b) Neither the Parent nor the Company is, or has been within the past five (5) years, an “investment company” within
the meaning of the Investment Company Act of 1940. 
 Section 2.2. Authorization. 

(a) Each of the Parent, the Company and each of their respective Subsidiaries, as applicable, has all requisite power and
authority to execute and deliver this Agreement and the other Transaction Documents to which it is a party, and to carry out the provisions of this Agreement and the other Transaction Documents to which it is a party, including with respect to the
Parent, the power and authority to issue the Common Stock issuable upon conversion of the Note.
 (b) All action on the part
of the Parent, the Company and each of their Subsidiaries, as applicable, their respective officers, directors and stockholders necessary for the authorization, execution and delivery of this Agreement and the other Transaction Documents to which
the Parent, the Company and each of their Subsidiaries, as applicable, is a party, and the performance of all obligations of the Parent, the Company and their Subsidiaries hereunder and thereunder, and the authorization, issuance (or reservation for
issuance) and delivery of the Common Stock issuable upon conversion of the Note has been taken. This Agreement has been duly and validly executed and delivered by the Parent and the Company, and the other Transaction Documents to which the
Parent, the Company or any Subsidiary is a party, when executed and delivered, will constitute, assuming this Agreement and the other Transaction Documents have been duly authorized, executed and delivered by Lender, and are, valid and legally
binding obligations of the Parent and the Company, enforceable in accordance with their respective terms except: (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium and other Laws of general application affecting
enforcement 

  
 4 

 
of creditors’ rights generally; and (ii) as limited by Laws relating to the availability of specific performance, injunctive relief or other equitable remedies (the “Enforceability
Exceptions”). 
 (c) The Board of Directors of the Parent (the “Board of Directors”), by
resolutions unanimously adopted at a meeting duly called and held, has (i) determined and declared that this Agreement and the Contemplated Transactions are advisable and fair to, and in the best interests of, the Parent and its stockholders and
(ii) authorized and approved the execution, delivery and performance of this Agreement and the Transaction Documents. Such resolutions have not been rescinded, modified or withdrawn in any way as of the date of this Agreement. 

Section 2.3. No Conflict or Violation. The execution, delivery and performance by the Parent, the Company and their
Subsidiaries of this Agreement and the other Transaction Documents to which they are a party and the consummation by the Parent, the Company and their Subsidiaries of the Contemplated Transactions in accordance with the terms hereof or thereof will
not (with notice or lapse of time, or both) (a) conflict with or violate any provision of (i) the articles of incorporation or bylaws of the Parent, (ii) the articles of incorporation or bylaws of the Company or (iii) any equivalent
organizational or governing document of any Subsidiary of the Parent or the Company, (b) require any consent or approval under, violate, conflict with or result in any breach of or any loss of any benefit under, or constitute a default under,
or result in termination or give to others any right of termination, vesting, amendment, acceleration or cancellation of, or result in the creation of a Lien upon any of the respective properties, rights or assets of the Parent, the Company or any
of their Subsidiaries, (c) conflict with or violate any Order binding upon the Parent, the Company or any of their Subsidiaries, or (d) conflict with or violate any Law applicable to the Parent or any of its Subsidiaries, except in the case of
each of the foregoing clauses (a)(iii), (b), (c) and (d), for such violations, conflicts, breaches, defaults, impairments or revocations that would not reasonably be expected to be material. 

Section 2.4. Governmental Consents and Approvals. The execution, delivery and performance by the Parent, the Company
and their Subsidiaries of this Agreement and the other Transaction Documents to which they are a party and the consummation by the Parent, the Company and their Subsidiaries of the Contemplated Transactions in accordance with the terms hereof or
thereof will not (with notice or lapse of time, or both) require any Permit or filing or registration with or notification to any Governmental Agency with respect to the Parent, the Company and their Subsidiaries except for filings necessary or
appropriate to perfect Lender’s security interests in collateral securing the Loans and except where the failure to obtain such Permits, or to make such filings, registrations or notifications would not reasonably be expected to be material.

  
 5 

 Section 2.5. Capitalization and Voting Rights.

(a) As of the date hereof, the equity capitalization of the Parent consists of: 

(i) 75,000,000 authorized shares of Common Stock, of which 7,544,345 shares are issued and outstanding and 464,742 will be
issuable upon the exercise of outstanding options or settlement of restricted stock units; and 
 (ii) 25,000,000 shares of
Preferred Stock, 0 of which are designated, issued, or outstanding. 
 (b) The outstanding Common Stock has been duly
authorized and validly issued, is fully paid and non-assessable, and was issued in accordance with the registration or distribution provisions of the applicable securities Laws or pursuant to valid exemptions therefrom. 

(c) As of the date hereof, except as set forth on Schedule 2.5(c) and except pursuant to the Stock Purchase
Agreement, by and among the Parent, Penelope Mining LLC, and Minera Del Norte S.A. de C.V., dated as of March 11, 2015 (the “Stock Purchase Agreement”) there is no: 

(i) outstanding option, warrant, right (contingent or other, including conversion, exchange, participation, right of first
refusal, co-sale or pre-emptive rights or rights regarding phantom stock or stock appreciation rights) or agreement for the purchase or acquisition from the Parent or the Company of any Common Stock, Preferred Stock or any other shares or securities
of the Parent or the Company, or any options, warrants or rights convertible into or exchangeable for any thereof; 
 (ii)
commitment by the Parent or the Company to issue shares, subscriptions, warrants, options, convertible or exchangeable securities or other such rights or to distribute to holders of its equity securities any evidence of indebtedness or assets; 

(iii) bond, debenture, note or other indebtedness of the Parent or the Company that entitles the holder thereof to vote (or is
convertible into, or exchangeable or exercisable for, securities having the right to vote) with the Stockholders on any matter; 

(iv) outstanding contractual obligations, commitments or arrangements of any character (contingent or otherwise) that are
binding on the Parent or the Company or any of their Subsidiaries to repurchase, redeem or otherwise acquire any shares of capital stock of, or other equity or voting interests in, the Parent or the Company; or 

(v) obligation, contingent or otherwise, by reason of any agreement to register the offer and sale or resale of any of the
Parent’s or the Company’s capital stock or other equity or voting securities under the Securities Act. 
 (d)
Neither the Parent nor or the Company has or intends to accelerate any rights or waive any conditions existing under any outstanding option, warrant, right or agreement (contingent or otherwise, including exercise, vesting, payment, conversion,

  
 6 

 
exchange, participation, right of first refusal, co-sale or pre-emptive rights or rights regarding phantom stock or stock appreciation rights) for the purchase or acquisition from the Parent or
the Company of any Common Stock, Preferred Stock or any other shares or securities of the Parent or the Company, or any options, warrants or rights convertible into or exchangeable for any thereof. 

(e) Neither the Parent nor or the Company is an “Issuing Corporation” as such term is defined in Section 78.3788 of
the Nevada Revised Statutes by virtue of the fact that either it has less than 200 holders of record and/or it has less than 100 holders of record who have addresses in the State of Nevada, in either case, appearing on the stock ledger of the Parent
or the Company. 
 Section 2.6. Subsidiaries. The Parent owns all of the issued and outstanding membership
interests in MEH, free and clear of all Liens other than the Liens pursuant to the A&R MEH-Parent Pledge Agreement, and MEH owns 500,000,000 shares of the Company representing all of the issued and outstanding shares of Company free and clear of
all Liens other than the Liens pursuant to the A&R OME Pledge Agreement. Each of MEH, the Company and each Subsidiary of the Company: (a) is validly existing and in good standing under the laws of the jurisdiction of its incorporation
or formation, (b) has all requisite corporate power and authority and all authorizations, licenses and permits necessary to own, lease and operate its properties and assets and to carry on its businesses as now conducted and (c) is duly
qualified or licensed to do business in every jurisdiction in which its ownership, leasing or operation of property or assets or the conduct of businesses as now conducted requires it to be qualified or licensed, other than in the case of the
Intermediate Holdcos, except as would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on the business, prospects, condition (financial or otherwise), affairs, properties, assets or Liabilities of the
Parent and its Subsidiaries, taken as a whole (a “Material Adverse Effect”). 
 Section 2.7. Oceanica. As of the
date hereof and as of each Closing Date: 
 (a) The Company owns 54,000,000 shares of Oceanica, free and clear of all
Liens except as set forth on Schedule 2.7(a). 
 (b) The outstanding equity capitalization of Oceanica is as set
forth on Schedule 2.7(b). 
 (c) As of the date hereof, except as set forth on Schedule 2.7(c) and
except as contemplated pursuant to the Approved Monaco Transaction, there is no: 
 (i) outstanding option, warrant, right
(contingent or other, including conversion, exchange, participation, right of first refusal, co-sale or pre-emptive rights or rights regarding phantom stock or stock appreciation rights) or agreement for the purchase or acquisition from any of the
Intermediate Holdcos or Oceanica of any equity, or any options, warrants or rights convertible into or exchangeable for any such equity; 

(ii) commitment by the Intermediate Holdcos or Oceanica to issue shares, subscriptions, warrants, options, convertible or
exchangeable securities or other such rights or to distribute to holders of its equity securities any evidence of indebtedness or assets; 

  
 7 

 (iii) bond, debenture, note or other indebtedness of the Intermediate Holdcos or
Oceanica that entitles the holder thereof to vote (or is convertible into, or exchangeable or exercisable for, securities having the right to vote) with the holders of equity in the Intermediate Holdcos or Oceanica on any matter; 

(iv) outstanding contractual obligation, commitment or arrangement of any character (contingent or otherwise) that are binding
on the Intermediate Holdcos or Oceanica to repurchase, redeem or otherwise acquire any shares of capital stock of, or other equity or voting interests in the Intermediate Holdcos or Oceanica; and 

(v) obligation, contingent or otherwise, by reason of any agreement to register the offer and sale or resale of any of the
capital stock of the Intermediate Holdcos or Oceanica under the Securities Act. 
 (d) Set forth on Schedule 2.7(d) is
a true and complete list of each Permit Oceanica has obtained, or made filings to obtain, in connection with the construction, development and operation of the Don Diego Project (each, a “Project Permit”). True and complete
copies of all such Permits and filings and all material written correspondence with any Governmental Agency regarding any Project Permit has been furnished to Lender. Except as disclosed in the Parent Reports, no Governmental Agency has
provided the Parent, Oceanica or any of their Subsidiaries, or to the knowledge of the Parent any other Person, written notice that such Governmental Agency does not intend to issue any Project Permit or any other Permit that is reasonably necessary
for the construction, development and operation of the Don Diego Project. There is no Proceeding pending or threatened (in writing or otherwise) (i) with respect to any alleged error or omission contained in any filing related to any Project
Permit, or (ii) following the issuance of any Project Permit, with respect to any alleged failure to be in compliance with the terms thereof, or which is likely to result in the revocation or termination of such Project Permit. 

(e) Oceanica or a Subsidiary thereof has the exclusive ownership of the mineral rights related to the Don Diego Project
covering not less than 300,000 hectares, each of which are listed on Schedule 2.7(e) (the “Project Mineral Rights”), free and clear of any Liens other than Permitted Liens. The Project Mineral Rights are sufficient to
conduct the Don Diego Project in a manner consistent with the business plans of the Parent. 
 (f) The Parent is not aware of
any facts or circumstances that would cause the Technical Report: Revised Assessment of the Don Diego West Phosphorite Deposit, Mexican Exclusive Economic Zone (EEZ), dated June 30, 2014, to not be true and correct in all material respects. 

  
 8 

 Section 2.8. Parent Reports; Financial Statements; Undisclosed Liabilities.

(a) The filings, including all material forms, registration, proxy and information statements, prospectuses, reports,
agreements (oral or written) and all documents, exhibits, amendments and supplements appertaining thereto, filed or furnished by the Parent since January 1, 2015 under the Securities Act or the Exchange Act (the “Parent
Reports”), have been timely filed or furnished (as applicable) with the SEC and complied, as of their respective filing dates, in all material respects with all applicable requirements of the statutes and the rules and regulations
thereunder, in each case as in effect on the dates so filed, including any amendments of such Parent Reports filed with the SEC. None of the Parent Reports contained, at the time such Parent Report was filed, or if amended or restated, at such
time when finally amended, restated or subsequently mailed to securityholders, any untrue statement of any material fact or omitted to state any material fact required to be stated therein or necessary in order to make the statements made therein,
in the light of the circumstances under which they were made, not misleading. All such Parent Reports complied in all material respects with the applicable requirements of the Securities Act or the Exchange Act, as the case may be. 

(b) As of the date hereof, there are no outstanding or unresolved comments in comment letters from the SEC staff with respect
to the Parent Reports, and to the Knowledge of the Parent, neither the Parent nor any Parent Report is the subject of an ongoing SEC review or outstanding SEC investigation. 

(c) Each of the consolidated financial statements, consolidated balance sheets, consolidated statements of operations and
consolidated statements of cash flows (including, in each case, any related notes and schedules thereto) of the Parent included in or incorporated by reference into the Parent Reports: (i) complied, as of the respective filing dates thereof, in
all material respects with the applicable rules and regulations of the SEC with respect thereto as in effect on the respective filing dates thereof, (ii) were prepared in accordance with U.S. generally accepted accounting principles
consistently applied during the periods involved (“GAAP”), except as may be footnoted therein, (iii) fairly presented, in all material respects, the consolidated financial position of the Parent, as of the respective dates
thereof, and the consolidated results of operations, retained earnings (accumulated deficit) and cash flows, as the case may be, of the Parent for the respective periods then ended (subject, in the case of unaudited financial statements, to normal
year-end adjustments). Neither the Parent nor any of its Subsidiaries has received, in writing, any material complaint, allegation, assertion or claim regarding the accounting or auditing practices, procedures, methodologies or methods of the
Parent or any of its Subsidiaries or their respective internal accounting controls. To the Knowledge of the Parent, no attorney representing the Parent or its Subsidiaries has reported evidence of a material violation of securities laws, breach
of fiduciary duty or similar violation by the Parent or any of its Subsidiaries or any of their respective officers, directors, employees or agents to the Board of Directors or any committee thereof pursuant to the rules of the SEC adopted under
Section 307 of the Sarbanes-Oxley Act of 2002. 

  
 9 

 (d) The Parent has (A) implemented and maintains (x) disclosure
controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act) designed to ensure that material information relating to the Parent and its Subsidiaries is made known on a timely basis to the management of the Parent and (y) a system
of internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) designed to provide reasonable assurances regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with GAAP and (B) disclosed to the Parent’s outside auditors and the audit committee of the Board of Directors (x) all significant deficiencies and material
weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Parent’s and its Subsidiaries’ ability to record, process, summarize and report financial data and
(y) any fraud, whether or not material, that involves management or other employees who have a significant role in the Parent’s internal control over financial reporting. 

(e) There are no Liabilities of the Parent or its Subsidiaries of a nature (whether accrued, absolute, contingent or otherwise)
other than: (i) Liabilities set forth in the consolidated balance sheet, including the notes thereto, of the Parent included in the most recent Parent Reports; (ii) Liabilities or obligations incurred in the ordinary course of
business consistent with past practices since the date of such balance sheet; (iii) Liabilities under Contracts, none of which arise out of any breach, default or non-performance by the Parent or its Subsidiaries; and (iv) Liabilities disclosed
on the Disclosure Schedules to this Agreement. 
 Section 2.9. Orders and Proceedings. There are no outstanding
Orders to which the Parent or any of its Subsidiaries or any of their respective properties or assets is subject or bound that would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect and there are no
Proceedings pending or, to the Knowledge of the Parent, threatened against the Parent or any of its Subsidiaries or to which any of their respective properties or assets is subject or bound that, if adversely determined, would reasonably be expected
to have, individually or in the aggregate, a Material Adverse Effect. 
 Section 2.10. Compliance.

(a) The Parent and its Subsidiaries are, and for the past three years have been, in material compliance with all material Laws
applicable to them; and during the past three years, neither the Parent nor any of its Subsidiaries has received written notice from any Governmental Agency or any other Person regarding any actual, alleged, possible, or potential violation of, or
failure to materially comply with, any material Law, except for such non-compliance as would not reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect. 

(b) The Parent and its Subsidiaries are not in breach or default under any of their contracts with Monaco and its Affiliates.

  
 10 

 Section 2.11. Receivables. As of the date hereof, the amount due and owing
from Oceanica and its Subsidiaries to the Parent and its Subsidiaries is as set forth on Schedule 2.11, which schedule sets forth the debtor, the creditor and that amount due. 

Section 2.12. Anti-Corruption; Anti-Money Laundering.

(a) Neither the Parent nor the Company or any of their respective Subsidiaries, nor any director or officer of any of the
Parent, the Company or their respective Subsidiaries, nor, to the Knowledge of the Parent, the Company, any stockholder, employee, vendor, sub-contractor or representative acting on behalf of any of the Parent, the Company and their Subsidiaries,
has taken any action, directly or indirectly, that would result in a material violation of any Anti-Corruption Law, Anti-Money Laundering Law, or OFAC Law, whether within the United States of America or elsewhere. 

(b) The Parent and the Company have established and maintains procedures and controls that are reasonably designed to ensure
that the Parent, the Company and their respective Subsidiaries are in compliance in all material respects with any applicable Anti-Corruption Laws, Anti-Money Laundering Laws or OFAC Laws. 

(c) None of the Parent, the Company and their respective Subsidiaries has found material violations of any Anti-Corruption Law,
Anti-Money Laundering Law or OFAC Law in an internal investigation, made a voluntary or other disclosure to a Governmental Agency related to any Anti-Corruption Law, Anti-Money Laundering Law or OFAC Law or received any written official notice,
citation, complaint or report related to alleged violations of any Anti-Corruption Law, Anti-Money Laundering Law or OFAC Law and either filed with a court, tribunal, or other Governmental Agency or transmitted by a Governmental Agency. Neither
the Parent nor the Company has any Knowledge that it or any of its respective Subsidiaries is under investigation by any Governmental Agency for possible violations of any Anti-Corruption Law, Anti-Money Laundering Law or OFAC Law.

(d) None of the Parent, the Company and their respective Subsidiaries, nor any director or officer of the Parent, the Company
or any of their respective Subsidiaries and, to the Knowledge of the Parent, no employee or agent of any of the Parent or any of its Subsidiaries is (i) a blocked person or denied party under any Anti-Money Laundering Law or (ii) a Person with whom
dealing or engaging in transactions is prohibited or sanctioned under any Laws of the United States of America or any other applicable jurisdiction. Neither the Parent, the Company nor any of their respective Subsidiaries is a party to any
Contract or other agreement or has engaged in any transaction or other business dealing with any country that, at the time of the relevant transaction, was subject to comprehensive (as opposed to list-based) OFAC Laws. 

Section 2.13. Brokers. No person, firm or corporation has or, as a result of any action taken by the Parent, the
Company, their respective Subsidiaries or any of their authorized representatives, will have, in the context of the transactions contemplated by this Agreement, any right, interest or valid claim against or upon the Parent, the Company, their
respective Subsidiaries or the Lender for any commission, fee or other compensation as a finder or broker or in any similar capacity. 

  
 11 

 Section 2.14. Offering. Assuming the accuracy of the Lender’s
representations and warranties set forth in this Agreement, the issuance of Common Stock issuable upon conversion of the Note is exempt from the registration and prospectus requirements of the Securities Act, and any other applicable securities Law,
and will be issued in compliance with all applicable federal and state securities and blue sky Laws. Neither the Parent, the Company nor any Person acting on their behalf will take any action hereafter that would cause the loss of such
exemption. The issuance of the Common Stock issuable upon conversion of the Note to the Lender will not be integrated with any other issuance of the Parent’s securities (past, current or future) for purposes of any stockholder approval
provisions applicable to the Parent or its securities. 
 Section 2.15. Anti-Takeover Provisions. The
Parent has taken all actions necessary to render inapplicable to this Agreement and the Contemplated Transactions, and inapplicable to Lender and the Common Stock issuable upon conversion of the Note in connection with this Agreement and the
Contemplated Transactions, any and all “fair price,” “moratorium,” “control share acquisition,” “business combination” and other similar statutes or regulations of any state or jurisdiction (collectively,
“Takeover Laws”); and without limiting the foregoing, the Board of Directors has taken all actions necessary so that the restrictions on business combinations contained in Sections 78.378-78.3793 and 78.411-78.444 of the Nevada
Revised Statutes, and, accordingly, any other section or any other Nevada Takeover Law or similar statute or regulation will not apply with respect to, or as a result of, the execution of this Agreement, the other Transaction Documents or the
consummation of the Contemplated Transactions, without any further action on the part of the Stockholders or of the Board of Directors. 

ARTICLE III. 

REPRESENTATIONS AND WARRANTIES OF THE LENDER 

The Lender hereby represents and warrants to the Parent as of the date hereof that: 

Section 3.1. Organization, Existence and Good Standing. Lender is duly organized and is validly existing and in good
standing under the Laws pursuant to which it was formed, and has all requisite corporate power and corporate authority to carry on its businesses as now conducted and as presently proposed to be conducted. Lender is duly licensed or qualified
to transact business as a foreign corporation or other equivalent entity and is in good standing in each jurisdiction in which the nature of the business transacted by it or the character of the properties owned or leased by it requires such
licensing or qualification, except for those jurisdictions where the failure to be so licensed, qualified or in good standing would not reasonably be expected to have an Lender Material Adverse Effect. 

Section 3.2. Authorization. Lender has full power and authority to execute and deliver this Agreement and the other
Transaction Documents to which it is a party, and to carry out the provisions of this Agreement and the other Transaction Documents to which it is a party. Any and all corporate or partnership action on the part of Lender necessary for the
authorization, execution and delivery of this Agreement and the performance of all obligations of Lender hereunder at each Closing has been, or will by each Closing have been, taken. This Agreement

  
 12 

 
has been duly and validly executed and delivered and constitutes, and the Transaction Documents to which Lender is a party when executed and delivered will constitute, assuming due execution and
delivery by the other parties thereto of this Agreement and the Transaction Documents, valid and legally binding obligations of Lender, enforceable against Lender in accordance with their respective terms, subject to the Enforceability Exceptions.

 Section 3.3. Receipt of Information. Lender believes it has received all the information the Lender considers
necessary or appropriate for deciding whether to purchase the Note. Lender further represents that Lender has had an opportunity to ask questions and receive answers from the Parent regarding the terms and conditions of the offering of the Note
and the business, properties, prospects and financial condition of the Parent and to obtain additional information (to the extent the Parent possessed such information or could acquire it without unreasonable effort or expense) necessary to verify
the accuracy of any information furnished to Lender or to which Lender had access. The foregoing, however, does not limit or modify the representations and warranties of the Parent and the Company in ARTICLE II of this Agreement or the
right of Lender to rely thereon. 
 Section 3.4. Investment Experience. Lender confirms that it has such knowledge and
experience in financial and business matters that Lender is capable of evaluating the merits and risks of an investment in the Note and of making an informed investment decision and understands that: this investment is suitable only for an investor
which is able to bear the economic consequences of losing its entire investment; the purchase of the Note by the Lender hereunder is a speculative investment which involves a high degree of risk of loss of the entire investment; there are
substantial restrictions on the transferability of, and there will be no public market for, the Note, and accordingly, it may not be possible for the Lender to liquidate its investment in case of emergency; and this Agreement and the other
Transaction Documents create a complex set of rights and obligations of the Lender. 
 Section 3.5. Qualifications of
Lender. Lender is an “Accredited Lender” as such term is defined in Rule 501(a) under the Securities Act (without reliance on Rule 501(a)(4) thereof). The Lender will provide reasonable information requested by the Parent in
connection with any filing required to be made with applicable securities regulators in connection with any issuance of Common Stock issuable upon conversion of the Note. Lender is not a “Bad Actor” within the meaning of Rule 506 of
the Securities Act. 
 Section 3.6. Restricted Securities. Lender understands that no securities of the Parent may be sold,
transferred, or otherwise disposed of without registration under the Securities Act or an exemption therefrom, and that in the absence of either an effective registration statement covering the Note or the Common Stock into which it may have been
converted, as applicable, compliance with such distribution requirements or an available exemption from registration under the Securities Act, the Note or the Common Stock into which it may have been converted, as applicable, must be held
indefinitely. Lender understands that the Note and the Common Stock into which it may have been converted will carry legends required by Law. In particular, the Lender is aware that the Note may not be sold pursuant to Rule 144 promulgated
under the Securities Act unless all of the conditions of that rule are met.

  
 13 

 ARTICLE IV. 

MISCELLANEOUS 
 Section
4.1. Rules of Construction. 
 (a) When a reference is made in this Agreement to an Article, a Section, an Exhibit or a
Schedule, such reference shall be to an Article of, a Section of, or an Exhibit or a Disclosure Schedule to this Agreement unless otherwise indicated. 

(b) Whenever the words “include,” “includes” or “including” are used in this Agreement or any
other Transaction Document, they shall be deemed to be followed by the words “without limitation.” 
 (c) Whenever
the word “or” is used in this Agreement, it shall not be deemed exclusive.
 (d) All terms defined in this
Agreement shall have the defined meanings when used in any other Transaction Document or in any certificate or other document made or delivered pursuant hereto or thereto unless otherwise defined therein. The definitions contained in this
Agreement and any other Transaction Document are applicable to the singular as well as to the plural forms of such terms and to the masculine as well as to the feminine and neuter genders of such terms. Whenever the context requires, any
pronouns used herein shall include the corresponding masculine, feminine or neuter forms. 
 (e) Except as expressly stated
in this Agreement, all references to any Law are to such Law as amended, modified, supplemented or replaced from time to time, and all references to any section of any Law include any successor to such section. 

(f) Except as expressly stated in this Agreement, all references to any agreement are to such agreement and include any
exhibits, annexes and schedules attached to such agreement, in each case, as the same is in effect as of the date of this Agreement and in the case of any such agreement to which the parties are other than all of the parties to this Agreement,
without giving effect to any subsequent amendment or modification. 
 (g) All references to “$” or
“dollars” mean the lawful currency of the United States of America. 
 (h) Unless otherwise specified herein, all
accounting terms used herein shall be interpreted, all determinations with respect to accounting matters hereunder shall be made, and all financial statements and certificates and reports as to financial matters required to be furnished hereunder
shall be prepared in accordance with United States generally accepted accounting principles, as consistently applied by the Parent and the Company. 

(i) No specific provision, representation or warranty shall limit the applicability of a more general provision, representation
or warranty. It is the intent of the parties that each representation, warranty, covenant, condition and agreement contained in this Agreement shall be given full, separate, and independent effect and that such provisions are cumulative. 

  
 14 

 (j) The parties hereto have participated jointly in the negotiation and drafting
of this Agreement and the other Transaction Documents with the assistance of counsel and other advisors and, in the event an ambiguity or question of intent or interpretation arises, this Agreement and the other Transaction Documents shall be
construed as jointly drafted by the parties hereto and thereto, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of the authorship of any provision of this Agreement or any other Transaction Document.

 (k) The table of contents and the headings contained in this Agreement and the other Transaction Documents are for
reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement or the other Transaction Documents. 

Section 4.2. Entire Agreement. This Agreement, the other Transaction Documents, the Disclosure Schedules hereto and thereto, and
the other agreements included as exhibits hereto and thereto constitute the entire agreement among the parties with respect to the subject matter hereof and supersede all prior agreements and, understandings, among the parties with respect to the
subject matter hereof and thereof. In the event of a conflict between the terms of this Agreement and the other Transaction Documents, the terms of this Agreement shall govern. 

Section 4.3. Notices. All notices and other communications hereunder shall be in writing and shall be deemed duly
given (a) on the date of delivery if delivered personally, (b) on the date sent by facsimile (with confirmation of transmission) or electronic mail if sent during normal business hours of the recipient during a Business Day, and otherwise on
the next Business Day, if sent after normal business hours of the recipient, provided that in the case of electronic mail, each notice or other communication shall be confirmed within one Business Day by dispatch of a copy of such notice pursuant to
one of the other methods described herein, (c) if dispatched via a nationally recognized overnight courier service (delivery receipt requested) with charges paid by the dispatching party, on the later of (i) the first Business Day following the
date of dispatch, or (ii) the scheduled date of delivery by such service, or (d) on the fifth Business Day following the date of mailing, if mailed by registered or certified mail, return receipt requested, postage prepaid to the party to
receive such notice, at the following addresses, or such other address as a party may designate from time to time by notice in accordance with this Section. 

(a) If to the Parent or Company, to: 

Odyssey Marine Exploration, Inc. 

5215 W. Laurel Street 

Suite 210 

Tampa, Fl 33607 

Attention: Chief Executive Officer 

  
 15 

 with a copy to: 

Akerman LLP 

401 E. Jackson Street, Suite 1700 

Tampa, FL 33602 

Attention: David M. Doney 

Facsimile: (813) 218-5404 

(b) If to the Lender, to: 

Epsilon Acquisitions LLC 

c/o: Altos Hornos de Mexico S.A.B. de C.V. 

Campos Eliseos No. 29 

Col. Rincon del Bosque 

11580 Mexico D.F. 

Mexico 

Attention: General Counsel 

Facsimile: 52 866 633-8050 

with a copy to: 

Willkie Farr & Gallagher LLP 

787 Seventh Avenue 

New York, NY 10019 

Attention: Maurice M. Lefkort 

Facsimile: (212) 728-8111 

Section 4.4. Fees, Costs and Expenses. The Parent shall reimburse Lender for its and its Affiliates’
reasonable, out-of-pocket fees, costs and expenses in an amount not to exceed $50,000 incurred in connection with the Contemplated Transaction through the increase in the principal amount of the Note by the amount of such fees, costs and
expenses. All fees, costs and expenses incurred by the Parent in connection with this Agreement and the other Transaction Documents and the Contemplated Transactions shall be borne by Parent whether or not the Contemplated Transactions are
consummated. 
 Section 4.5. Publicity and Reports. Each party agrees that, except as otherwise required by Law, it will not
issue any reports, statements or releases, in each case relating to the Contemplated Transactions, without the prior written consent of the other parties hereto, which consent shall not unreasonably be withheld or delayed. To the extent
disclosure is required by Law, the non-disclosing party shall have the right to review any report, statement or release as promptly as possible prior to its publication and to reasonably consult with the disclosing party with respect to the content
thereof. 
 Section 4.6. Amendments; Waiver.

(a) This Agreement may be amended, superseded, canceled, renewed or extended only by a written instrument signed by each of the
parties hereto. 

  
 16 

 (b) A party may by written instrument signed on behalf of such party: (i)
extend the time for the performance of any of the obligations or other acts of another party due to it, (ii) waive any inaccuracies in the representations and warranties made to it contained in this Agreement or any Transaction Document, or (iii)
waive compliance with any covenants, obligations, or conditions in its favor contained in this Agreement or in any Transaction Document. No claim or right arising out of this Agreement or any Transaction Document can be waived by a party, in
whole or in part, unless made in a writing signed by such party. Neither any course of conduct or dealing nor failure or delay by any party in exercising any right, power, or privilege under this Agreement or any of the Transaction Documents
will operate as a waiver of such right, power, or privilege, and no single or partial exercise of any such right, power, or privilege will preclude any other or further exercise of such right, power, or privilege or the exercise of any other right,
power, or privilege. A waiver given by a party will be applicable only to the specific instance for which it is given. 
 Section
4.7. Binding Effect; Assignment. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and permitted assigns. Neither this Agreement, nor any right, duty or
obligation of any party hereunder, may be assigned or delegated by the Parent without the prior written consent of Lender. Lender may assign its rights and delegate its obligations hereunder; provided that no such assignment or delegation shall
relieve Lender of its obligations hereunder. Any purported assignment of rights or delegation of obligations in violation of this Section will be void. References to a party in this Agreement and in any Transaction Document also refer to
such party’s successors and permitted assigns. 
 Section 4.8. No Third-Party Beneficiaries. Except for the
Persons expressly referenced in Section 4.9, nothing in this Agreement is intended or shall be construed to give any person, other than the parties hereto, their successors and permitted assigns, any legal or equitable right, remedy or claim
under, or in respect of, this Agreement the Transaction Documents or any provision contained herein or therein. 
 Section 4.9. No
Recourse Against Nonparty Affiliates. All claims, obligations, liabilities, or causes of action (whether in contract, common or statutory law, equity or otherwise) that arise out of or relate to this Agreement or any other Transaction Document,
or the negotiation, execution, or performance of this Agreement or any other Transaction Document (including any representation or warranty made in, in connection with or as an inducement to this Agreement or any other Transaction Document), may be
made only against the parties that are signatories to this Agreement or such other Transaction Document, as the case may be (“Contracting Parties”). No Person who is not a Contracting Party, including any officer, employee,
member, partner or manager signing this Agreement, the Transaction Documents or any certificate delivered in connection herewith or therewith on behalf of any Contracting Party (“Nonparty Affiliates”) shall have any liability
(whether in contract, tort, common or statutory law, equity or otherwise) for any claims, obligations, liabilities or causes of action arising out of, or relating in any manner to, this Agreement or any other Transaction Document or based on, in
respect of, or by reason of this Agreement or any other Transaction Document or the negotiation, execution, performance, or breach of the Agreement or any other Transaction Document; and, to the maximum extent permitted by Law, each Contracting
Party hereby waives and releases all such liabilities, claims, causes of action, and obligations against any such Nonparty Affiliates. 

  
 17 

 Section 4.10. Governing Law. This Agreement, the other Transaction
Documents, and any dispute, controversy or proceeding arising out of or relating to this Agreement, the other Transaction Documents, or the Contemplated Transactions or the subject matter hereof or thereof or the relationship among the parties
hereto or thereto in connection herewith or therewith (in each case whether in contract, tort, common or statutory law, equity or otherwise) shall be governed by the substantive Laws of the State of Delaware without regard to conflict of law
principles thereof or of any other jurisdiction that would cause the application of laws of any jurisdiction other than those of the State of Delaware. 

Section 4.11. Exclusive Forum in Designated Courts. Any dispute, controversy, proceeding or claim arising out of or relating
to: (i) this Agreement or any other Transaction Document, or any of the Contemplated Transactions or the subject matter hereof or thereof, (ii) the breach, termination, enforcement, interpretation or validity of this Agreement, or any other
Transaction Document, including the determination of the scope or applicability of this agreement to arbitrate, or (iii) the relationship among the parties hereto or thereto, in each case, whether in contract, tort, common or statutory law, equity
or otherwise, shall be brought exclusively in either (x) the Delaware Court of Chancery and any state appellate court therefrom within the State of Delaware, (y) if such court lacks subject matter jurisdiction, the United States District Court for
the District of Delaware, to the extent that such court has subject matter jurisdiction or (z) if such court lacks subject matter jurisdiction, the courts of the State of Delaware (the “Designated Court”). Each of the parties
hereto hereby irrevocably submits with regard to any such action or proceeding for itself and in respect of its property, generally and unconditionally, to the personal jurisdiction of the Designated Court and agrees that it will not bring any
action whether in tort, contract, common or statutory law, equity or otherwise arising out of or relating to this Agreement or any other Transaction Document or any of the Contemplated Transactions or the subject matter hereof or thereof in any
court other than the Designated Court. Each of the parties hereto hereby irrevocably waives, and agrees not to assert as a defense, counterclaim or otherwise, in any action or proceeding with respect to this Agreement or any other Transaction
Document, (a) any claim that it is not personally subject to the jurisdiction of the Designated Court, (b) any claim that it or its property is exempt or immune from jurisdiction of the Designated Court or from any legal process commenced in such
Designated Court (whether through service of notice, attachment prior to judgment, attachment in aid of execution of judgment, execution of judgment or otherwise), and (c) to the fullest extent permitted by applicable Law, any claim that (i) the
suit, action or proceeding in such Designated Court is brought in an inconvenient forum, (ii) the venue of such suit, action or proceeding is improper, or (iii) this Agreement, any other Transaction Document, or the subject matter hereof or thereof,
may not be enforced in or by such Designated Court.
 Section 4.12. Consent to Service of Process. Each of the
parties hereto hereby irrevocably and unconditionally consents to service of process in the manner provided for notices in Section 4.3 and agrees that nothing in this Agreement or any other Transaction Document will affect the right of any
party hereto to serve process in any other manner permitted by applicable Law. 

  
 18 

 Section 4.13. Waiver of Jury Trial. EACH PARTY ACKNOWLEDGES AND AGREES
THAT ANY DISPUTE IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE IT KNOWINGLY, VOLUNTARILY, INTENTIONALLY, IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY DISPUTE. 

Section 4.14. Specific Performance. The parties agree that irreparable damage would occur in the event that any of
the provisions of this Agreement were not performed in accordance with their specific terms and that monetary damages, even if available, would not be an adequate remedy therefor. It is accordingly agreed that the parties shall be entitled to
specific performance of the terms hereof, this being in addition to any other remedy to which they are entitled at law or in equity. The parties acknowledge that the awarding of equitable remedies is within the discretion of the applicable court.

 Section 4.15. Remedies Cumulative. The rights and remedies of the parties are cumulative and not alternative.

Section 4.16. Counterparts. This Agreement may be executed in one or more counterparts, each of which will be deemed to be an
original copy of this Agreement and all of which, when taken together, will be deemed to constitute one and the same agreement.
 Section
4.17. Signatures/E-delivery; Reproduction of Documents. 
 (a) A manually signed copy of this Agreement or any other
Transaction Documents delivered by facsimile, email or other means of electronic transmission shall be deemed to have the same legal effect as delivery of an original signed copy of this Agreement. No legally binding obligation shall be created
with respect to a party until such party has delivered or caused to be delivered a manually signed copy of this Agreement. 

(b) This Agreement, the other Transaction Documents, and all certificates and documents relating hereto and thereto, including,
without limitation, (i) consents, waivers and modifications that may hereafter be executed, (ii) documents received by each party pursuant hereto, and (iii) financial statements and other information previously or hereafter furnished to each party,
may be reproduced by each party by electronic digital storage, computer tapes, photographic, photostatic, optical character recognition, microfilm, microcard, miniature photographic or other similar process, and each party may destroy any original
document so reproduced. All parties hereto agree and stipulate that any such reproduction shall be admissible in evidence as would the original itself in any judicial, arbitration or administrative proceeding (whether or not the original is in
existence and whether or not such reproduction was made by each party in the regular course of business) and that any enlargement, facsimile or further reproduction of such reproduction shall likewise be admissible in evidence. 

Section 4.18. Severability.

(a) If any provision of this Agreement or any other Transaction Document is determined to be invalid, illegal or unenforceable,
the remaining provisions of this 

  
 19 

 
Agreement and the other Transaction Documents shall remain in full force, if the essential terms and conditions of this Agreement and the other Transaction Documents for each party remain valid,
binding and enforceable. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or
unenforceable provision as may be possible and be valid and enforceable. 
 (b) Any provision of this Agreement or any other
Transaction Document held to be invalid, illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity, illegality or unenforceability without affecting the validity, legality and
enforceability of the remaining provisions hereof or thereof; and the invalidity of a particular provision in a particular jurisdiction shall not invalidate such provision in any other jurisdiction. 

Section 4.19. Adjustments for Share Splits, etc. Wherever in this Agreement there is a reference to a specific number of shares of
the Parent of any Class or series, or a price per share, or consideration received in respect of such shares, then, upon the occurrence of any subdivision or consolidation of the shares of such Class or series, the specific number of
shares or the price so referenced in this Agreement shall automatically be proportionally adjusted to reflect the effect on the outstanding shares of such Class or series of shares by such subdivision or consolidation.

Section 4.20. Release. In consideration of, among other things, Lender’s execution and delivery of this Agreement,
each of the Parent, the Company, any party claiming on behalf of the Parent or the Company, the Parent or the Company’s equityholders and residual claimants and the respective successors and assigns of each (collectively, the
“Releasors”), hereby forever agrees and covenants not to sue or prosecute against the Releasees (as defined in this Section 4.20) and hereby forever waives, releases and discharges each Releasee from, any and all claims
(including, without limitation, cross-claims, counterclaims, rights of set-off and recoupment), actions, causes of action, suits, debts, accounts, interests, Liens, promises, warranties, damages and consequential and punitive damages, demands,
agreements, bonds, bills, specialties, covenants, controversies, torts, variances, trespasses, judgments, executions, costs, expenses or claims whatsoever (collectively, the “Claims”), that such Releasor now has (as of the date of
this amendment and restatement) or hereafter may have, of whatsoever nature and kind, whether known or unknown, whether arising at law or in equity, against Lender in any capacity and its shareholders and “controlling persons” (within the
meaning of the federal securities laws), and their respective successors and assigns and each and all of the officers, directors, employees, agents, attorneys, advisors, auditors, consultants, Affiliates and other representatives of each of the
foregoing (collectively, the “Releasees”), based in whole or in part on facts whether or not now known, existing on or before the date hereof, that relate to, arise out of or otherwise are in connection with this Agreement or any of
the Transaction Documents or any transactions contemplated thereby or any acts or omissions in connection therewith or the negotiation thereof, provided, however, that the foregoing shall not release Lender from its express obligations under this
Agreement or any of the Transaction Documents. The provisions of this Section 4.20 shall survive the expiration and termination of this Agreement and any of the Transaction Documents. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.] 

  
 20 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first above
written. 
  

					
	
	PARENT:
	
	ODYSSEY MARINE EXPLORATION, INC.
		
	By:	 	 /s/ Mark D. Gordon

		 	Name:	 	Mark D. Gordon
		 	Title:	 	President and Chief Executive Officer
	
	COMPANY:
	
	ODYSSEY MARINE ENTERPRISES, LTD.
		
	By:	 	 /s/ Mark D. Gordon

		 	Name:	 	Mark D. Gordon
		 	Title:	 	Vice President and Director

 [Signature Page to A&R Note Purchase Agreement] 

 
					
	LENDER:
	
	EPSILON ACQUISITIONS LLC
		
	By:	 	 /s/ Alonso Ancira

		 	Name:	 	Alonso Ancira
		 	Title:	 	Managing Member

 [Signature Page to A&R Note Purchase Agreement] 

 ANNEX A 

DEFINITIONS 

“A&R Registration Rights Agreement” means that certain Amended and Restated Registration Rights Agreement, dated as of
March 18, 2016, amended and restated as of the date hereof, by and between the Parent and the Lender. 
 “Affiliate” has
the meaning set forth in Rule 12b-2 of the rules and regulations promulgated under the Exchange Act; provided, however, that for purposes of this Agreement, Lender and its Affiliates, on the one hand, and the Parent and its Affiliates, on the other,
shall not be deemed to be “Affiliates” of one another. 
 “Anti-Corruption Laws” means Laws or Orders relating to
anti-bribery and anti-corruption (governmental or commercial) that apply to the business and dealings of the Parent or any of its Subsidiaries, including, without limitation, Laws that prohibit the payment, offer, promise or authorization of the
payment or transfer of anything of value (including gifts or entertainment), directly or indirectly, to any foreign government official, foreign government employee or commercial entity to obtain a business advantage. 

“Anti-Money Laundering Laws” means any Laws or Orders relating to anti-money laundering or terrorism financing that apply to
the business and dealings of the Parent or any of its Subsidiaries. 
 “Approved Monaco Transaction” has the meaning
ascribed to such term in the Waiver and Consent, dated March 18, 2016, by and among the Parent, the Company, Penelope Mining LLC, and Minera del Norte S.A. de C.V. 

“Borrowing Notice” with respect to any request for a borrowing of a Loan hereunder, means a notice from the Borrower that
sets forth the amount of and Closing Date for such Loan. 
 “Business Day” means any day except (a) a Saturday or Sunday or
(b) a day on which the New York Stock Exchange or the NASDAQ Stock Market is closed for trading. 
 “Class” means any class
of capital stock of the Parent designated as such in any of the articles of incorporation of the Parent. 
 “Commitment
Amount” means (a) $6,000,000 minus (b) the amount of all Loans made by the Lender pursuant to this Agreement, it being understood that the Company shall not have the right to reborrow any amounts borrowed but repaid pursuant to this
Agreement. 
 “Common Stock” means the common stock par value $.0001 per share of Parent. 

“Contemplated Transactions” means the transactions contemplated by this Agreement and each of the Transaction Documents,
including the issuance of the Common Stock upon conversion of the Note. 

  
 A - 1 

 “Contract” means any contract, lease, deed, mortgage, license, instrument, note,
commitment, undertaking, indenture, joint venture or any other agreement, commitment or legally binding arrangement, whether written or oral. 

“Disclosure Schedule” means the disclosure schedule attached hereto. 

“Don Diego Project” means the Don Diego West offshore phosphate project, located in the Pacific Ocean approximately 50 km
southwest off the coast of Baja California Sur, Mexico. 
 “Exchange Act” means the Securities Exchange Act of 1934, as
amended. 
 “Existing Pledge” means that certain Pledge Agreement, dated as of March 11, 2015, by and among Minera del
Norte S.A. de C.V., the Company and Oceanica. 
 “Governmental Agency” means any: (x) multinational, federal, state,
regional, municipal, local or other government, governmental or public department, central bank, court, tribunal, arbitral body, commission, board, bureau or agency, domestic or foreign; (y) subdivision, agent, commission, board or authority of any
of the foregoing; or (z) quasi-governmental or private body exercising any regulatory, expropriation or taxing authority under or for the account of any of the foregoing. 

“Lender Material Adverse Effect” means a material adverse effect on the ability of Lender to perform its obligations under
the Transaction Documents. 
 “Knowledge” means that a matter is, as of the applicable date, actually known to, or based on
their position and responsibilities would reasonably be expected to be known by, an executive officer of the Parent. 

“Law” means: (1) laws (including common law), statutes, by-laws, rules, regulations, orders, ordinances, codes, treaties,
decrees, judgments, awards or requirements, in each case of any Governmental Agency, and terms and conditions of any grant of approval, permission, authority or license of any Governmental Agency; and (2) all policies, notices, guidelines, protocols
or directions of any Governmental Agency which are binding on the Person referred to in the context in which it is used. 

“Liabilities” means liabilities, obligations or commitments of any nature whatsoever, asserted or unasserted, known or
unknown, absolute or contingent, accrued or unaccrued, matured or unmatured or otherwise. 
 “Lien” means any charge,
claim, community property interest, condition, equitable interest, lien, option, pledge, security interest, right of first refusal, or restriction of any kind, including any restriction on use, voting, transfer, receipt of income, or exercise of any
other attribute of ownership. 
 “Maturity Date” means March 18, 2017. 

“Monaco” means Monaco Financial, LLC. 

  
 A - 2 

 “Oceanica” means Oceanica Resources S. de R.L., a Panamanian limitada. 

“OFAC Laws” means any statutory and regulatory requirements of the laws administered by the Office of Foreign Assets Control
of the U.S. Department of the Treasury. 
 “Order” means any judgment, writ, decree, injunction, order, compliance
agreement or settlement agreement of or with any Governmental Agency. 
 “Permit” means any permit, approval, consent,
authorization, license, variance, or permission required by a Governmental Agency under any Law. 
 “Permitted Liens”
means, with respect to any asset, (i) covenants, conditions, restrictions, encroachments, encumbrances, easements, rights of way, licenses, grants, building or use restrictions, exceptions, reservations, limitations or other imperfections of title
(other than a Lien securing any indebtedness) with respect to such asset which, individually or in the aggregate, does not materially detract from the value of, or materially interfere with the present occupancy or use of, such asset and the
continuation of the present occupancy or use of such asset; (ii) unfiled mechanic’s, materialmen’s and similar Liens with respect to amounts not yet due and payable or which are being contested in good faith through appropriate proceedings
and, for which adequate reserves in accordance with GAAP are reflected on the consolidated balance sheet of the Parent included in the Parent Reports; (iii) Liens for Taxes not yet delinquent or which are being contested in good faith through
appropriate proceedings and, for which adequate reserves in accordance with GAAP are reflected on the consolidated balance sheet of the Parent included in the Parent Reports; and (iv) Liens securing rental payments under capital lease arrangements,
which capital lease arrangements are reflected in accordance with GAAP on the consolidated balance sheet of the Parent included in the Parent Reports. 

“Person” means an individual, partnership, corporation, limited liability Parent, business trust, joint stock Parent, trust,
unincorporated association, joint venture or any other entity or organization. 
 “Preferred Stock” means the preferred
stock par value $.0001 per share of Parent. 
 “Proceedings” means any action, suit, litigation, arbitration, legal
administrative or other civil or criminal proceeding, at law or in equity, or, to the extent within the Knowledge of the Parent or the knowledge of the Lender, as applicable, any investigation by or before any Governmental Agency. 

“Revolving Credit Commitment” means the obligation of the Lender to make Loans in an aggregate principal amount not to exceed
$6,000,000. 
 “Revolving Credit Commitment Period” means the period from the date of this Agreement to the Maturity
Date. 
 “SEC” means the Securities and Exchange Commission or any other federal agency at the time administering the
Securities Act. 

  
 A - 3 

 “Securities Act” means the Securities Act of 1933, as amended, or any similar
successor federal statute and the rules and regulations thereunder, all as the same shall be in effect from time to time. 

“Stockholders” means the stockholders of the Parent. 

“Subsidiary” means, with respect to a Person other than a natural person: (a) any body corporate of which more than 50%
of the outstanding shares ordinarily entitled to elect a majority of the board of directors thereof (whether or not shares of any other class or classes shall or might be entitled to vote upon the happening of a certain event or contingency) are at
the time owned directly or indirectly by such specified body corporate, (b) any body corporate, partnership, joint venture or other entity over which the Person in question exercises direction or control or which is in a like relation to a
subsidiary described in clause (a); and (c) any “subsidiary” as defined in Rule 405 promulgated under the Securities Act. 

“Taxes” means all federal, state, local, foreign and other taxes, assessments and water and sewer charges and rents,
including without limitation, income, gross receipts, excise, employment, sales, use, transfer, license, payroll, franchise, severance, stamp, withholding, Social Security, unemployment, real property, personal property, property gains,
registration, capital stock, value added, single business, occupation, workers’ compensation, alternative or add-on minimum, estimated, or other tax, including without limitation, any interest, penalties or additions thereto. 

“Transaction Documents” means this Agreement, the Note, the Pledge Agreements, the A&R Registration Rights Agreement and
any and all certificates, agreements, documents or other instruments to be executed and delivered by any Person in connection with such documents, any exhibits, attachments or schedules to any of the foregoing and any other written agreement that is
expressly identified as a Transaction Document, as any of the foregoing may be amended, supplemented or otherwise modified from time to time. 

  
 A - 4 

 ANNEX B 

CROSS REFERENCE SHEET OF TERMS DEFINED HEREIN 
  

			
	 Terms
	  	 Section

		
	A&R MEH-Parent Pledge Agreement	  	Section 1.3(a)(iii)
	A&R OME Pledge Agreement	  	Section 1.3(a)(ii)
	Agreement	  	Preamble
	Board of Directors	  	Section 2.2(c)
	Claims	  	Section 4.20
	Company	  	Preamble
	Contracting Parties	  	Section 4.9
	Designated Court	  	Section 4.11
	Enforceability Exceptions	  	Section 2.2(b)
	Existing Loan	  	Section 1.4(a)(i)
	GAAP	  	Section 2.8(d)
	Intermediate Holdcos	  	Section 1.3(a)(iii)
	Lender	  	Preamble
	Loan	  	Section 1.1
	Material Adverse Effect	  	Section 2.6
	MEH	  	Section 1.3(a)(iii)
	Nonparty Affiliates	  	Section 4.9
	Note	  	Recitals
	Parent	  	Preamble
	Parent Reports	  	Section 2.8(a)
	Pledge Agreements	  	Section 1.3(a)(iii)
	Pledged Oceanica Shares	  	Section 1.3(a)(ii)
	Project Mineral Rights	  	Section 2.7(e)
	Project Permit	  	Section 2.7(d)
	Releasors	  	Section 4.20
	Releasees	  	Section 4.20
	Stock Purchase Agreement	  	Section 2.5(d)
	Takeover Laws	  	Section 2.15

  
 B - 1 

 EXHIBIT A 

NOTE 

  
 Ex. A - 1 

 EXHIBIT B 

A&R OME PLEDGE AGREEMENT 

  
 Ex. B - 1 

 EXHIBIT C 

A&R MEH-PARENT PLEDGE AGREEMENT 

  
 Ex. C - 1 

 EXHIBIT D 

A&R REGISTRATION RIGHTS AGREEMENT 

  
 Ex. D - 1Amended and Restated Convertible Promissory Note

 Exhibit 10.2 

ODYSSEY MARINE ENTERPRISES, LTD. 

AMENDED AND RESTATED CONVERTIBLE PROMISSORY NOTE 

October 1, 2016 

Subject to the terms and conditions of this Amended and Restated Convertible Promissory Note, dated as of March 18, 2016 and amended and
restated as of the date hereof (this “Note”), for good and valuable consideration received, Odyssey Marine Enterprises, Ltd., a Bahamas company (the “Company”), whose address is Lyford Financial Centre, Lyford Cay,
P.O. Box N-7776, Nassau, Bahamas, promises to pay to Epsilon Acquisitions LLC (the “Lender”), the principal amount of six million dollars ($6,000,000), or so much thereof as shall have been advanced to the Company by the Lender and
be outstanding hereunder, together with interest accrued on the unpaid principal amount outstanding under this Note from time to time from the date hereof until paid in full at the rate of ten percent (10%) per annum (the “Interest
Rate”), payable on the terms set forth in Section 2 herein. 
 The obligations of the Company under this Note are
secured by (a) that certain Amended and Restated Pledge Agreement, dated as of the date hereof, between the Company and Lender (as amended or restated from time to time, the “A&R OME Pledge Agreement”), and (b) that
certain Amended and Restated Pledge Agreement, dated as of the date hereof, between Marine Exploration Holdings, LLC, a Nevada limited liability company (“MEH”), Guarantor (as defined below) and Lender (as amended or restated from
time to time, the “A&R MEH-Parent Pledge Agreement”, and together with the OME Pledge Agreement, the “Pledge Agreements”). Odyssey Marine Exploration, Inc., a Nevada corporation (the
“Guarantor”) shall be a party to this Note for the purposes of Section 8 hereof. 
 The following is a
statement of the rights of the Holder and the terms and conditions to which this Note is subject, and to which the Holder, by the acceptance of this Note agrees: 

1. Certain Definitions. Unless the context otherwise requires, as used in this Note, the following terms will have the following
meanings: 
 (a) “Adjusted Principal Balance” means the entire outstanding principal balance under this Note at the time in
question plus accrued interest and fees. 
 (b) “Applicable Conversion Price” means, with respect to Tranche 1, the Tranche
1 Conversion Price, and with respect to any other Tranche, the Borrowing Date Conversion Price. 
 (c) “Bankruptcy Code”
means the United States Federal Bankruptcy Code of 1978, as amended or supplemented (as now or hereafter in effect). 
 (d)
“Borrowing Date Conversion Price” means, with respect to a particular Tranche of the Loan (other than Tranche 1), the VWAP of the Common Stock for each day in the five (5) consecutive Trading Day period ending and including the
Trading Day immediately preceding the date of the Borrowing Notice for such Tranche (as adjusted for stock splits, stock dividends, stock combinations, recapitalizations or other similar transactions). 

 (e) “Business Day” means any day except (a) a Saturday or Sunday or
(b) a day on which the New York Stock Exchange or the NASDAQ Stock Market is closed for trading. 
 (f) “Change in
Control” means the earlier of the entry into a definitive agreement providing for, or the effective date of: (i) a sale, lease, transfer or other disposition in one or a series of related transactions of any of the Company’s
equity interests in Oceanica, (ii) MEH ceasing to own beneficially and of record 100% of the equity interests in the Company, (iii) Guarantor ceasing to own beneficially and of record 100% of the equity interests in MEH, or (iv) any
Person or group (other than Lender, Minosa and their respective affiliates) becoming the holder of in excess of 20% of the voting stock or outstanding equity interests of Guarantor. 

(g) “Common Stock” means the Guarantor’s common stock, par value $0.0001 per share. 

(h) “Debt” means as to any person, without duplication (a) all indebtedness of such person for borrowed money or for the
deferred purchase price of property or services as of such date (other than operating leases, trade liabilities and other liabilities incurred in the ordinary course of business and payable in accordance with customary practices) or which is
evidenced by a note, bond, debenture or similar instrument, (b) the principal component of all obligations of such person under capitalized leases, (c) all obligations of such person in respect of letters of credit, acceptances or similar
obligations issued or created for the account of such person, (d) all liabilities secured by any lien on any property owned by such person even though such person has not assumed or otherwise become liable for the payment thereof, (e) all
guarantee obligations of such person, (f) all obligation of such person under conditional sale or other title retention agreements relating to property or assets purchased by such person and (g) interest rate swap transaction, basis swap
transaction, forward rate swap transaction, commodity swap transaction, equity transaction, equity index transaction, foreign exchange transaction, cap transaction, floor transaction (including any option with respect to any of these transactions
and any combination of any of the foregoing) entered into by such person. 
 (i) “Debtor Relief Laws” means the Bankruptcy
Code and all other applicable liquidation, conservatorship, bankruptcy, moratorium, rearrangement, receivership, insolvency, reorganization, fraudulent transfer or conveyance, suspension of payments, or similar laws from time to time in effect
affecting the rights of creditors generally. 
 (j) “Encumbrance” means any charge, claim, community property interest,
condition, equitable interest, lien, option, pledge, security interest, right of first refusal, or restriction of any kind, including any restriction on use, voting, transfer, receipt of income, or exercise of any other attribute of ownership. 

(k) “Event of Default” shall have the meaning set forth in Section 3 hereof. 

  
 2 

 (l) “Existing Loan” means that certain loan made to the Company by Minosa in
separate advances in the aggregate amount of $14,750,000, as evidenced by a Promissory Note dated as of March 11, 2015, by and among the Company, Minosa and the Guarantor. 

(m) “Financing” means a transaction or series of transactions pursuant to which the Company, Guarantor or any of the
Subsidiaries of either, as applicable, issues or sells any (i) debt securities or other debt instruments of the Company, Guarantor or any of the Subsidiaries of either; (ii) equity securities of the Company, Guarantor or any of the
Subsidiaries of either; (iii) debt instruments which have the right to convert into any class of capital stock of the Company, Guarantor or any of the Subsidiaries of either; or (iv) other convertible securities that have the right to
convert into any class of capital stock of the Company, Guarantor or any of the Subsidiaries of either. 
 (n) “GAAP” means,
collectively the (a) generally accepted accounting principles in the United States set forth in the opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board, that are applicable and (b) such other accounting methods consistently applied and maintained throughout the period indicated and consistent with the prior financial practices of the
Company. 
 (o) “Governmental Agency” means any: (x) multinational, United States, non-United States, federal, state,
regional, municipal, local or other government, governmental or public department, central bank, court, tribunal, arbitral body, commission, board, bureau or agency, domestic or foreign; (y) subdivision, agent, commission, board or authority of
any of the foregoing; or (z) quasi-governmental or private body exercising any regulatory, expropriation or taxing authority under or for the account of any of the foregoing. 

(p) “Holder” when the context refers to a holder of this Note, will mean any person who at the time in question is the
registered holder of this Note. 
 (q) “Law” means: (i) laws (including common law), statutes, by-laws, rules,
regulations, orders, ordinances, codes, treaties, decrees, judgments, awards or requirements, in each case of any Governmental Agency, and terms and conditions of any grant of approval, permission, authority or license of any Governmental Agency;
and (ii) all policies, notices, guidelines, protocols or directions of any Governmental Agency which are binding on the Person referred to in the context in which it is used. 

(r) “Loan Documents” means this Note, the Pledge Agreements, the Purchase Agreement, and all other documents, agreements and
instruments delivered in connection therewith. 
 (s) “Loans” means, collectively, the Tranche 1 loan and any other Tranche
of loan made pursuant to this Note. 
 (t) “Material Adverse Effect” means a material adverse effect on (a) the
business, prospects, condition (financial or otherwise), affairs, properties, assets or liabilities of (i) the Company alone or (ii) the Company and its Subsidiaries, taken as a whole, (b) the ability of the Company to perform its
obligations under this Note or any of the other Loan Documents. 

  
 3 

 (u) “Maturity Date” shall have the meaning set forth in
Section 2(a). 
 (v) “Minosa” means Minera del Norte S.A. de C.V. 

(w) “Obligations” means, collectively, (a) all present and future liabilities and other obligations of the Company to
Lender under the Loan Documents, whether those obligations are direct, indirect, fixed, contingent, liquidated, unliquidated, joint, several, or joint and several, due or to become due, created directly or acquired by assignment or otherwise, and
(b) all present and future costs, attorneys’ fees, and expenses reasonably incurred by Lender and relating to the Company’s payment of any of the Obligations, including, without limitation (to the extent lawful), all present and
future amounts that would become due but for the operation of §§502 or 506 or any other provision of Title 11 of the United States Code and all present and future accrued and unpaid interest, including, without limitation, all
post-maturity interest and any post-petition interest in any proceeding under Debtor Relief Laws to which the Company becomes subject. 
 (x)
“Oceanica” means Oceanica Resources S. de R.L., a Panamanian limitada. 
 (y) “Order” means any judgment,
writ, decree, injunction, order, compliance agreement or settlement agreement of or with any Governmental Agency. 
 (z) “Original
Note” means that certain Convertible Promissory Note dated as of March 18, 2016, by and among the Company, the Lender, and the Guarantor. 

(aa) “Permitted Encumbrance” means (a) any Encumbrance securing the Existing Loan, (b) any Encumbrance arising under
this Note or the other Loan Documents; and (iii) liens for Taxes not yet delinquent. 
 (bb) “Person” means any natural
person, corporation, limited liability company, partnership, joint venture, trust or other organization, whether or not a legal entity, and any Governmental Agency. 

(cc) “Principal Market” means the Nasdaq Capital Market. 

(dd) “Purchase Agreement” means the Amended and Restated Note Purchase Agreement, dated as of the date hereof, by and among
the Lender, the Company and the Guarantor. 
 (ee) “Securities Act” means the Securities Act of 1933, as amended. 

(ff) “Stock Purchase Agreement” means that certain Stock Purchase Agreement, dated as of March 11, 2015, by and among
Guarantor, Lender and Minosa, as amended from time to time. 
 (gg) “Subsidiaries” means, with respect to any Person (the
“parent”), at any date, any other Person the accounts of which would be consolidated with those of the parent in the parent’s consolidated financial statements if such statements were prepared in accordance with GAAP and
including, without limitation, each Person as to which the parent owns more than 50% of the equity interests or otherwise controls. 

  
 4 

 (hh) “Trading Day” means any day on which the Common Stock is traded on the
Principal Market, or, if the Principal Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded, provided that “Trading Day”
shall not include any day on which the Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or
if such exchange or market does not designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York time) unless such day is otherwise designated as a Trading Day in writing by the
Holder. 
 (ii) “Tranche 1” means the loan made to the Company by the Lender in separate advances in the aggregate amount of
$3,000,000, as evidenced by the Original Note. 
 (jj) “Tranche 1 Conversion Price” means a conversion price equal to $5.00
per share (as adjusted for stock splits, stock dividends, stock combinations, recapitalizations or other similar transactions). 
 (kk)
“Tranche” means a separate extension of the Loan under the Terms of the Purchase Agreement. 
 (ll) “VWAP”
means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market (or, if the Principal Market is not the principal trading market for such security, then on the principal securities exchange
or securities market on which such security is then traded) during the period beginning at 9:30:01 a.m., New York time, and ending at 4:00:00 p.m., New York time, as calculated from trading data reported by The NASDAQ Stock Market. If the VWAP
cannot be calculated for such security on such date on any of the foregoing basis, the VWAP of such security on such date shall be the fair market value as mutually determined by the Company and the Holder. All such determinations shall be
appropriately adjusted for any stock dividend, stock split, stock combination, recapitalization or other similar transaction during such period. 

2. Maturity, Payment of Interest and Prepayment. 

(a) Unless otherwise converted as provided herein, the Adjusted Principal Balance will be due and payable in full on March 18, 2017 (the
“Maturity Date”). 
 (b) If the Stock Purchase Agreement is terminated for any reason, then from and after the date of such
termination each of the Company and Guarantor, as applicable, shall, and shall cause their respective Subsidiaries to, use any and all proceeds from a Financing to repay the outstanding Adjusted Principal Balance of this Note. 

(c) The unpaid principal balance of this Note at any time shall be the aggregate amount of all Loans made by Lender to the Company from time to
time less the total amount of principal payments made hereon by the Company. The date and amount of each such Loan and each payment on account of principal thereof may be endorsed by Lender on the grid attached to and made a part of this Note, and
when so endorsed shall represent evidence thereof binding upon the Company in the absence of manifest error. Any failure by Lender to so endorse shall in no way mitigate or discharge the obligation of the Company to repay any Loans actually made.

  
 5 

 (d) The outstanding principal balance of this Note shall bear interest (computed on the basis of
a 365/366 day year) at the Interest Rate stated above from the date hereof until the payment in full of the Adjusted Principal Balance. From and after the earlier of the Maturity Date and the occurrence of an Event of Default, all obligations due
and payable hereunder (whether interest, principal or otherwise) shall bear interest at a rate per annum equal to the Interest Rate plus 2% per annum, payable on demand and compounding monthly. 

(e) Interest shall be payable in arrears to the Lender on the Maturity Date. 

(f) The Company may prepay this Note in whole or in part at any time so long as the Company provides written notice to the Lender of such
prepayment at least 10 days prior to the proposed prepayment date. Any such prepayment shall be applied first against the Tranche with the highest Applicable Conversion Price. For the avoidance of doubt, Holder may exercise its right to voluntarily
convert this Note pursuant to Section 3 subsequent to the receipt of the notice of prepayment. 
 3. Voluntary Conversion;
Limitations on Conversion. 
 (a) Each Tranche outstanding under this Note and any amounts due hereunder with respect to such Tranche
(and to the extent not directly related to a Tranche, allocated based on the outstanding principal amount of each Tranche) shall be convertible at the election of the Holder: (a) upon a merger consolidation, third party tender offer or similar
transaction relating to the Guarantor or (b) at any time or from time to time, upon seventy-five (75) days’ notice to the Company, in each case, into shares of Common Stock at a conversion price equal to the Applicable Conversion
Price. In addition to the foregoing, upon the occurrence and during the continuance of an Event of Default, this Note and any amounts due hereunder shall be convertible at the election of the Holder, into shares of Common Stock at a conversion price
equal to one-half of the Applicable Conversion Price. 
 (b) Notwithstanding anything herein to the contrary, the Company shall not issue any
shares of Common Stock upon conversion of any outstanding Tranche (other than Tranche 1) under this Note in excess of 1,388,769 shares of Common Stock. 

4. Mechanics and Effect of Conversion. No fractional shares of the Guarantor Common Stock will be issued upon conversion of this Note.
In lieu of any fractional share to which the Holder would otherwise be entitled, the Company will pay to the Holder in cash the amount of the unconverted principal and interest balance of this Note that would otherwise be converted into such
fractional share. Upon conversion of this Note pursuant to Section 3, the Holder shall surrender this Note, duly endorsed, at the principal offices of the Company or any transfer agent of the Company. At its expense, the Company will, as
soon as practicable thereafter, issue and deliver to such Holder, at such principal office, a notice of issuance for the number of shares to which such Holder is entitled upon such conversion, together with any other securities and property to which
the Holder is entitled upon such conversion under the terms of this Note, including a check payable to the Holder for any cash amounts payable as described herein. Upon conversion of this Note, the Company will be forever released from all of its
obligations and liabilities under this Note with regard to that portion of the principal amount and accrued interest being converted, including, without limitation, the obligation to pay such portion of the principal amount and accrued interest.

  
 6 

 5. Events of Default. If there shall be any Event of Default (as defined below), this Note
shall accelerate and the Adjusted Principal Balance, (x) in the case of clauses (d), (f), (g), (h), (k) and (m), shall become immediately due and payable, and (y) in all other cases, upon written notice from Holder shall become
immediately due and payable. It shall be an “Event of Default” under this Note if: 
 (a) the Company fails to pay any
amount payable hereunder on the date due and payable; 
 (b) the Company or Guarantor shall fail to perform or observe any term, covenant or
agreement herein contained, or shall fail to perform or observe any other covenant contained herein or in any other Loan Document and such failure shall not be remedied within five (5) Business Days after written notice is sent to the Company;

 (c) an event of default or material breach by the Company, Guarantor or any of their affiliates under any of the other Loan Documents
shall have occurred and all grace periods, if any, applicable thereto shall have expired; 
 (d) the Stock Purchase Agreement shall have been
terminated. 
 (e) any representation, warranty, statement, certificate, schedule or report made herein or in any other Loan Document by or
on behalf of the Company or any of its Subsidiaries or furnished by or on behalf of the Company or any of its Subsidiaries hereunder or thereunder shall prove to have been false or misleading in any material respect as of the time made or deemed to
have been made or furnished and if capable of being remedied, the same shall not be remedied within five (5) Business Days after written notice is sent to the Company, or, if earlier, the date an officer of the Company obtains actual knowledge
thereof; 
 (f) there shall have occurred the dissolution, termination of existence of, or the insolvency of, or the making of an assignment
or trust mortgage for the benefit of creditors by, the Company or any of its Subsidiaries; 
 (g) the Company or any of its Subsidiaries
shall (i) apply for or consent to the appointment of, or the taking of possession by, a receiver, custodian, trustee, liquidator or similar official of itself or of all or a substantial part of its property, (ii) make a general assignment
for the benefit of its creditors, (iii) commence a voluntary case under the Bankruptcy Code, (iv) take any action or commence any case or proceeding under any Debtor Relief Law, (v) fail to contest in a timely or appropriate manner,
or acquiesce in writing to, any petition filed against it in an involuntary case under the Bankruptcy Code or other Debtor Relief Law, (vi) take any action under the laws of its jurisdiction of incorporation or organization similar to any of
the foregoing, or (vii) take any corporate action for the purpose of effecting any of the foregoing; 

  
 7 

 (h) a proceeding or case shall be commenced, without the application or consent of the Company or
any of its Subsidiaries, in any court of competent jurisdiction, seeking (i) the liquidation, reorganization, dissolution, winding up, or composition or readjustment of its debts, (ii) the appointment of a trustee, receiver, custodian,
liquidator or the like of it or of all or any substantial part of its assets, or (iii) similar relief in respect of it, under any Debtor Relief Law, and such proceeding or case shall continue undismissed, or unstayed and in effect, for a period
of sixty (60) days; or an order for relief shall be entered in an involuntary case under such Debtor Relief Law, against the Company or any of its Subsidiaries or action under the laws of the jurisdiction of incorporation or organization of the
Company or any of its Subsidiaries, similar to any of the foregoing shall be taken with respect to the Company or any of its Subsidiaries; 

(i) an entry of judgment or award against the Company or any of its Subsidiaries shall be made (i) which exceeds $100,000 in the aggregate
outstanding at any time, (ii) which has been in force more than sixty (60) days (or, if the applicable appeal period is shorter, for such shorter period) or on which execution has been levied, (iii) in respect of which the Company or
such Subsidiary shall not at the time in good faith be prosecuting an appeal or proceedings for review and in respect of which no stay of execution shall have been obtained pending such appeal or review, and (iv) the judgment or award shall
have arisen out of liabilities not fully covered by insurance unless the insurer shall have acknowledged in writing that full coverage (subject to any deductibles applicable thereto) exists with respect to such judgment or award; 

(j) the Company or any of its Subsidiaries is enjoined, restrained, or in any way prevented from conducting all or any material part of its
business affairs; 
 (k) a Change in Control shall occur; 

(l) there shall be instituted in any court criminal proceedings against the Company, any of its Subsidiaries or any officer, director, manager
or principal thereof, or the Company, any of its Subsidiaries or any officer, director, manager or principal thereof shall be indicted for any crime, in either case for which a forfeiture of a material portion of the Company’s or any
Subsidiary’s property is a potential penalty or if adversely determined would reasonably be expected to have a Material Adverse Effect; or 

(m)(i) there shall exist an event of default under any other agreement relating to Debt of the Company or any of its Subsidiaries where the
outstanding principal amount of such Debt is greater than $100,000, and all grace periods, if any, applicable thereto shall have expired; (ii) the maturity of any such Debt shall have been accelerated; (iii) without the prior, written
approval of Holder, the Company shall have made any payment with respect to any such Debt (other than the Existing Loan) more than five (5) Business Days in advance of its scheduled payment date; or (iv) any “Event of Default”
shall have occurred and be continuing under the Existing Loan. 
 6. Representations and Warranties of the Company 

The Company hereby represents and warrants to the Lender as follows: 

(a) Organization and Standing. The Company is duly organized and existing under the laws of the Bahamas and is in good standing under
such laws. The Company has the requisite power and authority to own and operate its properties and assets, and to carry on its business as presently conducted and as proposed to be conducted. The Company is duly qualified to do business as a foreign
corporation in each jurisdiction in which the conduct of its business requires such qualification, except where the failure to so qualify would not have a Material Adverse Effect. 

  
 8 

 (b) Corporate Power. Each of the Company and the Guarantor have all requisite corporate
power to execute and deliver the Loan Documents and to carry out and perform their obligations under the terms of the Loan Documents. The Company has all requisite corporate power to sell and issue this Note. Each of the Loan Documents constitutes a
valid and legally binding obligation of the Company and the Guarantor, enforceable in accordance with its terms, subject, as to enforcement of remedies, to applicable bankruptcy, insolvency, moratorium, reorganization and similar laws affecting
creditors’ rights generally and to general equitable principles of law. 
 (c) No Conflicts. Neither the Company, the Guarantor
nor any of their Subsidiaries is in violation of or default on any term of its certificate of incorporation or bylaws, or other charter documents, as each is in effect as of the date hereof (collectively, the “Charter Documents”),
or any provision of any material mortgage, indenture, contract, agreement, instrument, judgment, decree, order, rule or regulation or other restriction to which the Company, the Guarantor or such Subsidiary is a party or by which it is bound or of
any material provision of any Law applicable to the Company, the Guarantor or any such Subsidiary. Each of (A) the execution, delivery and performance by the Company and the Guarantor of the Loan Documents, (B) the compliance herewith and
therewith, (C) the issuance by the Company of this Note, and (D) the consummation of the transactions contemplated hereby, in the case of each of the foregoing clauses (A) through (D), will not result in any violation of or result in
a breach of any of the terms of, or constitute a default under, (i) any provision of any material Law applicable to the Company, the Guarantor or any of its Subsidiaries, (ii) the Charter Documents, or (iii) any provision of any
material mortgage, indenture, contract, agreement, instrument, or other restriction to which the Company, the Guarantor or any of their Subsidiaries is a party or by which they are bound. 

(d) Litigation. There are no actions, suits, investigations or proceedings pending or actually known to be threatened in writing against
or to the knowledge of the Company affecting the Company or any of its Subsidiaries, or any properties or rights of the Company or any of its Subsidiaries, by or before any Governmental Agency which if adversely determined would reasonably be
expected to have a Material Adverse Effect. 
 (e) Compliance With Laws. The Company and each of its Subsidiaries has conducted and
continues to conduct its business in all material respects in accordance with all Laws and Orders applicable to the Company and each of its Subsidiaries or any of their respective properties or assets, and neither the Company nor any of its
Subsidiaries is in violation of any such Law or Order in any material respect. 
 (f) Conduct of Business; Absence of Undisclosed
Liabilities. The Company and its Subsidiaries (excluding Oceanica and its Subsidiaries): (x) conduct no business other than holding equity interests in Oceanica, and (y) have no liabilities or obligations, contingent or otherwise,
other than (i) liabilities set forth on Schedule 7(a), (ii) obligations under contracts and commitments incurred in the ordinary course of business, not required by GAAP to be set forth on a consolidated Balance Sheet,
(iii) immaterial fees, costs, and expenses associated with the maintenance of the existence of such Persons, and (iv) liabilities under the Loan Documents. 

  
 9 

 (g) No Encumbrances. The Company and each of its Subsidiaries (other than Oceanica and its
Subsidiaries) have good and valid title to its properties and assets, free and clear of any Encumbrance, except for Permitted Encumbrances. 

(h) Tax Returns and Taxes. All federal, state and other taxes, assessments and other governmental charges upon the Company, any of its
Subsidiaries or any of their respective properties which are due and payable or claimed to be due have been paid to federal, state or local taxing authorities (including, without limitation, taxes on properties, franchises, licenses, sales and
payrolls), other than any such tax, assessment or charge that is subject to an ongoing bona fide dispute. All charges, accruals and reserves for taxes reflected in the Balance Sheet are adequate to cover the tax liabilities of the Company and its
Subsidiaries as of the date(s) thereof. There are no tax liens upon any of the properties of the Company or any of its Subsidiaries. There are no pending tax examinations nor have any tax claims been asserted by any taxing authority against the
Company or any of its Subsidiaries, nor is there any basis for any such claim. 
 (i) Compliance with OFAC Rules and Regulations.
Neither the Company nor any of its Subsidiaries is (i) an “enemy” or an “ally of the enemy” within the meaning of Section 2 of the Trading with the Enemy Act, (ii) in violation of the U.S. Department of the
Treasury, Office of Foreign Assets Control (“OFAC”) regulations, or (iii) a “Sanctioned Person” or a “Sanctioned Entity” as defined in applicable OFAC regulations. 

(j) Use of Proceeds; Solvency. The Company hereby agrees that the money loaned to the Company hereunder shall be used in compliance with
applicable Law. After giving effect to the loan provided for in this Note and the intended use of proceeds, the Company will be “solvent” within the meaning of the Bankruptcy Code. 

7. Additional Covenants. 

(a) Debt. Neither the Company nor any of its Subsidiaries shall incur, assume or suffer to exist any Debt other than (i) Debt
existing on the date hereof and set forth on Schedule 7(a), (ii) Debt under this Note, and (iii) other debt owed to the Lender. 

(b) Transactions Outside of the Ordinary Course of Business. Neither the Company nor any of its Subsidiaries shall (i) permit or
suffer any merger, reorganization, change in senior management or other similar transaction, (ii) make or agree to make any asset sale or disposition, (iii) acquire all or any portion of the equity interests or Debt of any Person,
(iv) make any advance or loan to any Person (other than an advance to Guarantor), (v) acquire any portion of the assets of any Person, and (vi) in the case of the Company and its Subsidiaries (other than Oceanica and its Subsidiaries)
conduct any business other than holding equity interests in Oceanica and performing their obligations under the contracts listed on Schedule 7(a) and under the Loan Documents. 

(c) Encumbrances. Except for Encumbrances created in accordance with the Debt existing on the date hereof and set forth on Schedule
7(a), neither the Company nor any of its Subsidiaries shall permit or suffer to exist any Encumbrance on any of its properties other than Permitted Encumbrances. 

  
 10 

 (d) Restricted Payments. 

(i) The Company shall not declare or pay any distribution or make any other payment on account of its equity interests, purchase, redeem, or
otherwise acquire or retire for value any of its equity interests; and 
 (ii) neither the Company nor any of its Subsidiaries shall make any
payment on or with respect to, or purchase, redeem, defease or otherwise acquire or retire for value (including, without limitation, in connection with any merger or consolidation involving the Company or any of its Subsidiaries) any other Debt,
other than scheduled payments of principal and interest on the Debt listed on Schedule 7(a). 
 (e) Notice Requirements. The
Company shall notify the Lender in writing, promptly after any officer of the Company obtains actual knowledge thereof and with full details, of: 

(i) any contingent liability(ies) involving liability in excess of $100,000 with respect to the Company (a “Material Amount”),
which is not covered by insurance; 
 (ii) any litigation or arbitration or other proceeding pending or commenced before any Governmental
Agency relating to the Company, Oceanica or any of their respective Subsidiaries; 
 (iii) the acceleration of the maturity of any Debt of
the Company or any of its Subsidiaries (whether or not disputed); 
 (iv) the occurrence of a default under any agreement or instrument to
which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries; 
 (v) any Encumbrance asserted,
and any attachment, levy, execution or other legal process levied against the Collateral or any other material property of the Company or any of its Subsidiaries; and 

(vi) any change in (i) the legal name of the Company or any of its Subsidiaries, (ii) the address of the chief executive office of
the Company or any of its Subsidiaries, (iii) the jurisdiction of formation of the Company or any of its Subsidiaries, or (iv) the location of any Collateral or the records of the Company or any of its Subsidiaries with respect to
accounts. 
 (f) Payment of Taxes and Claims. The Company and each of its Subsidiaries shall pay each tax or other assessment or
governmental charge or levy imposed upon the Company or any of its Subsidiaries or their respective property prior to the time when any material penalties or interest (except interest during extensions of time for filing of tax returns) accrue with
respect thereto, as well as any lawful claim for labor, materials or supplies which if unpaid might become a lien or charge upon the properties of the Company or any of its Subsidiaries or any part thereof. 

(g) Compliance With Law. The Company and each of its Subsidiaries shall comply in all material respects with the requirements of all
present and future applicable Laws 

  
 11 

 (h) Access to Records. The Lender shall, upon reasonable notice to the Company and at
reasonable times, be provided with access to all tax, financial and other books and records of, and senior officers of, the Company and each of its Subsidiaries. 

8. Guaranty. 
 (a) For
value received, the Guarantor hereby unconditionally and irrevocably guarantees to the Lender all Obligations. The Lender may bring a separate action against the Guarantor for any accrued but unpaid Obligations without making any demand upon the
Company, and without separately proceeding against the Company, and without pursuing any other remedy. 
 (b) The Lender shall have the
right, without notice to the Guarantor, to: (i) renew, extend, accelerate, waive, compromise, release, restructure and otherwise modify, or refuse to modify, the Obligations, the liability of any Person therefor as principal, guarantor, surety
or otherwise, and/or any security therefor; and (ii) pursue or not pursue, or make elections among, the Lender’s remedies against any such Persons, even if any rights that the Guarantor may have, including subrogation, reimbursement,
indemnity, contribution and/or participation in security, are impaired or extinguished. The Guarantor waives any right or defense that might arise by reason of the Lender’s exercise of any such rights. 

(c) The Guarantor’s liability shall not be affected by any circumstance constituting legal or equitable discharge of a guarantor or surety
other than payment in full of the Obligations. The Guarantor hereby waives, and agrees not to exercise, any rights it may have arising from or based on: (i) any right to require the Lender to proceed against the Company or any other guarantor
or other person, or to pursue any other remedy whatsoever; (ii) any defense based upon any legal disability of, any discharge or limitation of the liability of, any restraint or stay applicable to actions against, or the lack of authority or
termination of existence of, the Company or any guarantor or other Person; (iii) any right of setoff, recoupment or counterclaim; (iv) presentment, protest, notice of acceptance, notice of protest, notice of dishonor and notice of any
action or inaction; (v) any defense based upon negligence of the Lender, including any failure to file a claim in any bankruptcy; (vi) all rights of subrogation, reimbursement, indemnity and/or contribution, and all rights to enforce any
remedy that the Lender may have against the Company or another Person; and (vii) any defense related to any change in the Person(s) primarily liable for the Obligations, whether by reason of a change in the structure of the Company, assumption
of the Obligations by another Person, or otherwise. The Guarantor will not institute, and will cause its affiliates not to institute, any Proceedings asserting that the guaranty contained in this Section 8 or any term or condition set
forth herein is illegal, invalid or unenforceable in accordance with its terms. 
 (d) The Guarantor’s liability shall continue in
effect notwithstanding payment or performance by the Company such that, if any such payment or performance is avoided or recovered from or returned by the Lender in connection with the bankruptcy, insolvency or reorganization of the Company or
otherwise, the Guarantor shall remain liable as though such payment or performance had not occurred. The Lender may elect in its sole discretion whether to contest a demand or claim that payment or performance should be avoided, recovered or
returned. 

  
 12 

 (e) The Guarantor’s obligations under this Section 8 shall not be altered,
limited, stayed or affected by any proceeding, voluntary or involuntary, involving the bankruptcy, insolvency, receivership, reorganization, liquidation, or arrangement of the Company, or by any defense the Company may have to the Obligations by
reason of any order, decree, or decision of any court or administrative body resulting from any such proceeding. Any stay of enforcement or stay of acceleration of the time for payment of any of the Obligations as against the Company or any other
Person, in bankruptcy or otherwise, shall not affect the Guarantor’s liability under this Note or the time for performance by the Guarantor hereunder. 

9. Assignment. The rights and obligations of the Company and the Holder of this Note will be binding upon and inure to the benefit of
the successors, assigns, heirs, administrators and transferees of the parties. Notwithstanding the foregoing, the Company may not assign, pledge or otherwise transfer this Note without the prior written consent of the Holder. 

10. Waivers. Other than as set forth herein, the Company hereby irrevocably waives notice of intent to demand, presentment for payment,
notice of nonpayment, protest, notice of set off, notice of protest, notice of dishonor, notice of intent to accelerate, notice of acceleration, and all other notices in connection with the delivery, acceptance, collection and/or enforcement of this
Note. 
 11. Waiver and Amendment. No provision of this outstanding Note shall be waived or modified without the written consent of
the Company and the Holder. 
 12. Exculpation. Notwithstanding anything to the contrary contained in this Note, neither Lender nor
any present or future shareholder, director, officer or partner of Lender or of any entity which is now or hereafter a shareholder, director, officer or partner of Lender, shall have any personal liability, directly or indirectly, under or in
connection with this Note or any agreement made or entered into under or in connection with the provisions of this Note, or any amendment or amendments to any of the foregoing made at any time or times, heretofore or hereafter, and the Company
hereby forever and irrevocably waives and releases any and all such personal liability. The limitation of liability provided in this paragraph is in addition to, and not in limitation of, any limitation on liability applicable to Lender provided by
law or by any other contract, agreement or instrument. 
 13. Lost Documents. Upon receipt by the Company of evidence and indemnity
satisfactory to it of the loss, theft, destruction or mutilation of, and upon surrender and cancellation of this Note, if mutilated, the Company will make and deliver in lieu of this Note a new note of the same series and of like tenor and unpaid
principal amount and dated as of the date to which interest, if any, has been paid on the unpaid principal amount of this Note. 
 14.
Severability. If any provision of this Note becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, portions of such provision, or such provision in its entirety, to the extent necessary, shall be
severed from this Note, and such court will replace such illegal, void or unenforceable provision of this Note with a valid and enforceable provision that will achieve, to the extent possible, the same economic, business and other purposes of the
illegal, void or unenforceable provision. The balance of this Note shall be enforceable in accordance with its terms. 

  
 13 

 15. Counterparts. This Note may be executed in any number of counterparts, each of which
shall be enforceable against the parties actually executing such counterparts, and all of which together shall constitute one instrument. 

16. Costs. If, and as often as, this Note is referred to an attorney for the collection of any sum payable hereunder, or to defend or
enforce any of Lender’s rights hereunder, or to commence an action, cross-claim, third-party claim or counterclaim by Lender against the Company relating to this Note, the Company agrees to pay to Lender all reasonable out-of-pocket third-party
costs incurred in connection therewith including reasonable and documented attorneys’ fees (including such fees incurred in appellate, bankruptcy or insolvency proceedings), with or without the institution of any action or proceeding, and in
addition all documented costs, disbursements and allowances provided by law. 
 17. Sole and Absolute Discretion. Any option,
consent, approval, discretion or similar right of Lender set forth in this Note may be exercised by Lender in its sole discretion, unless the provisions of this Note or the other Loan Documents specifically require such option, consent, approval,
discretion or similar right to be exercised in Lender’s reasonable discretion. 
 18. Loan Documents. The parties hereto are
entitled to all of the benefits, and subject to all of the limitations, provided in the Loan Documents, which are hereby incorporated herein by reference as though set forth herein in their entirety. 

19. Marshaling. Lender shall not be required to marshal any present or future security for the Obligations, or to resort to such
security or guarantees in any particular order. To the extent that it lawfully may, the Company hereby agrees that it will not invoke any law that might cause delay in or impede the enforcement of the rights of Lender under this Note or under any
other instrument evidencing any of the Obligations or pursuant to which any of the Obligations were issued or by which any of the Obligations are secured or guaranteed, and to the fullest extent it lawfully may, the Company irrevocably waives the
benefits of all such laws. 
 20. Governing Law; Submission to Jurisdiction; Waiver of Jury Trial, Etc. 

(a) Governing Law. This Note, and all claims arising out of or relating to it, shall be governed by and construed in accordance with the laws
of the State of New York, excluding that body of law relating to conflict of laws. 
 (b) SUBMISSION TO JURISDICTION/SERVICE OF
PROCESS. THE COMPANY HEREBY IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE STATE AND FEDERAL COURTS LOCATED IN NEW YORK, NEW YORK, FOR THE PURPOSES OF ANY SUIT, ACTION OR OTHER PROCEEDING ARISING OUT OF OR BASED UPON THIS NOTE, THE
SUBJECT MATTER HEREOF, ANY OTHER LOAN DOCUMENT AND THE SUBJECT MATTER THEREOF. THE COMPANY TO THE EXTENT PERMITTED BY APPLICABLE LAW (A) HEREBY WAIVES, AND AGREES NOT TO ASSERT, BY WAY OF MOTION, AS A DEFENSE, OR OTHERWISE, IN ANY SUCH SUIT,
ACTION OR OTHER PROCEEDING BROUGHT IN THE ABOVE-NAMED COURTS ANY CLAIM THAT IT IS NOT SUBJECT PERSONALLY TO THE JURISDICTION OF SUCH COURTS, THAT ITS PROPERTY IS EXEMPT OR IMMUNE FROM ATTACHMENT OR EXECUTION, THAT THE SUIT, ACTION OR PROCEEDING IS
BROUGHT IN AN INCONVENIENT FORUM, THAT THE VENUE OF THE SUIT, ACTION OR PROCEEDING IS IMPROPER OR THAT THIS NOTE, THE SUBJECT MATTER HEREOF, THE OTHER LOAN DOCUMENTS OR THE SUBJECT MATTER THEREOF (AS APPLICABLE) MAY NOT BE ENFORCED IN OR BY SUCH
COURT, (B) HEREBY WAIVES THE RIGHT TO REMOVE ANY SUCH ACTION, SUIT OR PROCEEDING INSTITUTED BY A LENDER IN STATE COURT TO FEDERAL COURT, OR TO REMAND AN ACTION INSTITUTED IN FEDERAL COURT TO STATE COURT AND (C) HEREBY WAIVES THE RIGHT TO
ASSERT IN ANY SUCH ACTION, SUIT OR PROCEEDING ANY OFFSETS OR COUNTERCLAIMS EXCEPT COUNTERCLAIMS THAT ARE COMPULSORY OR OTHERWISE ARISE FROM THE SAME SUBJECT MATTER. THE COMPANY AGREES THAT ITS SUBMISSION TO JURISDICTION IS MADE FOR THE EXPRESS
BENEFIT OF LENDER. FINAL JUDGMENT AGAINST THE COMPANY IN ANY SUCH ACTION, SUIT OR PROCEEDING SHALL BE CONCLUSIVE, AND MAY BE ENFORCED IN ANY OTHER JURISDICTION (X) BY SUIT, ACTION OR PROCEEDING ON THE JUDGMENT, A CERTIFIED OR TRUE COPY OF WHICH
SHALL BE CONCLUSIVE EVIDENCE OF THE FACT AND OF THE AMOUNT OF INDEBTEDNESS OR LIABILITY OF THE COMPANY THEREIN DESCRIBED, OR (Y) IN ANY OTHER MANNER PROVIDED BY OR PURSUANT TO THE LAWS OF SUCH OTHER JURISDICTION. 

  
 14 

 (c) WAIVER WITH RESPECT TO DAMAGES. THE COMPANY ACKNOWLEDGES THAT LENDER DOES NOT HAVE ANY
FIDUCIARY RELATIONSHIP WITH, OR FIDUCIARY DUTY TO, THE COMPANY ARISING OUT OF OR IN CONNECTION WITH THIS NOTE OR THE OTHER LOAN DOCUMENTS. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE COMPANY SHALL NOT ASSERT, AND THE COMPANY HEREBY WAIVES, ANY
CLAIMS AGAINST LENDER, ON ANY THEORY OF LIABILITY, FOR SPECIAL, INDIRECT, CONSEQUENTIAL OR PUNITIVE DAMAGES (AS OPPOSED TO DIRECT OR ACTUAL DAMAGES) ARISING OUT OF, IN CONNECTION WITH, OR AS A RESULT OF, THIS NOTE, ANY OTHER LOAN DOCUMENT, ANY
AGREEMENT OR INSTRUMENT CONTEMPLATED HEREBY OR THEREBY, OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY. 
 (d) WAIVER OF JURY
TRIAL. THE COMPANY HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVES ANY RIGHT THAT THE COMPANY MAY HAVE TO A TRIAL BY JURY IN ANY LITIGATION ARISING IN ANY WAY IN CONNECTION WITH THIS NOTE OR ANY OF THE OTHER LOAN DOCUMENTS, OR ANY OTHER
STATEMENTS OR ACTIONS OF THE LENDER. THE COMPANY ACKNOWLEDGES THAT THIS WAIVER IS A MATERIAL INDUCEMENT FOR THE LENDER TO DISBURSE THE MONEY EVIDENCED BY THIS NOTE AND TO ENTER INTO THE OTHER LOAN DOCUMENTS. 

21. Release. In consideration of, among other things, Lender’s execution and delivery of this Note, concurrently with the
advancement of any Loan by Lender, the Company, the Company’s equityholders and residual claimants and the Guarantor, on behalf of itself and the respective successors and assigns of each (collectively, the “Releasors”), hereby
forever agrees and covenants not to sue or prosecute against the Releasees (defined below) and hereby forever waives, releases and discharges each Releasee from, any and all claims (including, without limitation, cross-claims, counterclaims, rights
of set-off and recoupment), actions, causes of action, suits, debts, accounts, interests, liens, promises, warranties, damages and consequential and punitive damages, demands, agreements, bonds, bills, specialties, covenants, controversies, torts,
variances, trespasses, judgments, executions, costs, expenses or claims whatsoever (collectively, the “Claims”), that such Releasor now has or hereafter may have, of whatsoever nature and kind, whether known or unknown, whether
arising at law or in equity, against Lender in any capacity and its shareholders and “controlling persons” (within the meaning of the federal securities laws), and their respective successors and assigns and each and all of the officers,
directors, employees, agents, attorneys, advisors, auditors, affiliates, consultants and other representatives of each of the foregoing (collectively, the “Releasees”), based in whole or in part on facts whether or not now known,
existing on or before the date of the most recent advance of Loans hereunder, that relate to, arise out of or otherwise are in connection with this Note or any transactions contemplated hereby or any acts or omissions in connection therewith or the
negotiation thereof, provided, however, that the foregoing shall not release Lender from the express obligations under this Note. The provisions of this Section 21 shall survive the repayment of this Note. 

[Remainder of Page Intentionally Blank] 

  
 15 

 IN WITNESS WHEREOF, the Company has caused this Note to be issued as of the day and year
as first written above. 
  

			
	ODYSSEY MARINE ENTERPRISES, LTD.
		
	By:	 	/s/ Mark D. Gordon
	Name:	 	Mark D. Gordon
	Title:	 	Vice President and Director
		 	
	Address:	 	 c/o Odyssey Marine Exploration, Inc.
 5215 W.
Laurel St., Suite 210
 Tampa, FL 33607

	
	ODYSSEY MARINE EXPLORATION, INC.
		
	By:	 	/s/ Mark D. Gordon
	Name:	 	Mark D. Gordon
	Title:	 	Vice President and Chief Executive Officer
		 	
	Address:	 	 5215 W. Laurel St., Suite 210
 Tampa, FL
33607

 ACCEPTED AND AGREED TO: 

EPSILON ACQUISITIONS LLC 
  

			
	
		
	By:	 	/s/ Alonso Ancira
	Name:	 	Alonso Ancira
	Title:	 	Managing Member
		 	
	Address:	 	 c/o Altos Hornos de Mexico S.A.B. de C.V.

Campos Eliseos No. 29
 11580 Mexico D.F.

Mexico

 [Signature Page to A&R Convertible Promissory Note] 

 LOANS AND PAYMENTS OF PRINCIPAL 

 

											
	 Date
	  	 Loan No.
	  	 Amount

of Loan
	  	 Amount of

Principal
 Paid
	  	 Unpaid

Principal

Balance
	  	 Notation Made

By

	 March 31, 2016
	  	1	  	$1,500,000	  	$0	  	$1,500,000	  	
	 March 31, 2016
	  	2 (expenses)	  	$50,000	  	$0	  	$1,550,000	  	
	 April 29, 2016
	  	3	  	$1,500,000	  	$0	  	$3,050,000	  	
	 September     , 2016
	  	4	  		  	$0	  	$6,050,000	  	

 Schedule 7(a) 

Existing Debt 
  

	1.	Promissory Note, dated as of March 11, 2015, by and among Minera del Norte S.A de C.V., Odyssey Marine Enterprises, Ltd. and Odyssey Marine Exploration, Inc. 

 

	2.	Pledge Agreement, dated as of March 11, 2015, by and among Minera del Norte S.A de C.V., Odyssey Marine Enterprises, Ltd. and Oceanica Resources S. de R.L. 

 

	3.	Convertible Promissory Note, dated as of April 15, 2016, by and between Odyssey Marine Exploration, Inc. and Monaco Financial LLC. 

 

	4.	Loan and Security Agreement, dated as of April 15, 2016, by and between Odyssey Marine Exploration, Inc. and Monaco Financial LLC. 

[Signature Page to A&R Convertible Promissory Note]

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