Document:

Amendment and Termination of Rights Agreement

 Exhibit 4.1 
 AMENDMENT AND TERMINATION OF 
 RIGHTS AGREEMENT 

THIS AMENDMENT AND TERMINATION OF RIGHTS AGREEMENT (this “Amendment and Termination”) is dated as of November 30, 2011,
between IRIS International, Inc., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company (the “Rights Agent”). 
 WHEREAS, the Company and the Rights Agent are parties to that certain Rights Agreement, dated as of September 24, 2010 (the “Rights Agreement”); 

WHEREAS, the Board of Directors has determined to terminate the Rights Agreement and, in furtherance thereof, the Company desires to
enter into this Amendment and Termination pursuant to which the Rights Agreement will be amended to provide that (i) the Rights will expire at the Close of Business (as defined in the Rights Agreement) on November 30, 2011, and
(ii) the Rights Agreement will be terminated upon the expiration of the Rights; and 
 WHEREAS, Section 28 of the
Rights Agreement provides, among other things, that the Company may supplement or amend the Rights Agreement without the approval of any holders of certificates of shares of Common Stock, any such supplement or amendment to be evidenced by a writing
signed by the Company and the Rights Agent, and that, upon the delivery of a certificate from an appropriate officer of the Company which states that the proposed supplement or amendment is in compliance with the terms of Section 28 of the
Rights Agreement, the Rights Agent shall execute such supplement or amendment; 
 NOW, THEREFORE, on the basis of the foregoing
premises, pursuant to Section 28 of the Rights Agreement, the Company and the Rights Agent hereby agree as follows: 
 1. Section 7(a)
of the Rights Agreement is hereby amended and restated in its entirety to read as follows: 
 “(a) Subject to
Section 7(f), each Right shall entitle the registered holder thereof, upon exercise thereof as provided herein, to purchase for the Purchase Price at any time after the Distribution Date and prior to the earlier of (i) the Close of
Business on November 30, 2011 (the “Final Expiration Date”), (ii) the Redemption Date and (iii) the time at which all exercisable Rights are exchanged pursuant to Section 16 hereof (the earliest of
(i), (ii) and (iii) being herein referred to as the “Expiration Date”), one one-thousandth (1/1000th) of a share of Preferred Stock, subject to adjustment from time to time as provided in Section 11,
12 and 14 hereof.” 
 2. Upon the expiration of the Rights in accordance with the terms of the Rights Agreement, as amended
hereby, the Rights Agreement shall be terminated and of no further force or effect whatsoever without any further action on the part of the Company or the Rights Agent. 

 3. Capitalized terms used but not otherwise defined herein shall have the meaning ascribed to them in the
Rights Agreement. 
 4. This Amendment and Termination shall be governed by Sections 27-35 of the Rights Agreement as though such sections were
set forth herein. 
 [Remainder of Page Intentionally Left Blank] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Amendment and Termination to be duly
executed as of the day and year first above written. 
 “COMPANY” 
 IRIS INTERNATIONAL, INC. 

			
		
	By:	 	 /s/ César García

	Name:	 	César García
	Title:	 	Chief Executive Officer

 “RIGHTS AGENT” 
 CONTINENTAL STOCK TRANSFER & TRUST COMPANY 

			
		
	By:	 	 /s/ Leslie A. Deluca

	Name:	 	Leslie A. Deluca
	Title:	 	Vice President

  
 3Certificate of Elimination of Series A Preferred Stock

 Exhibit 4.2 
 CERTIFICATE OF ELIMINATION OF THE 
 SERIES A PREFERRED STOCK OF

 IRIS INTERNATIONAL, INC. 
 Pursuant to Section 151(g) 
 of the General Corporation Law 

of the State of Delaware 
 IRIS International, Inc., a corporation organized and existing under the laws of the State of Delaware (the “Company”), in accordance with the provisions of Section 151(g) of the General
Corporation Law of the State of Delaware, hereby certifies as follows: 
 1. That, pursuant to Section 151 of the General
Corporation Law of the State of Delaware and authority granted in the Certificate of Incorporation of the Company, as theretofore amended, the Board of Directors of the Company, by resolution duly adopted, authorized the issuance of a series of
250,000 shares of Series A Preferred Stock, par value $0.01 per share, of the Company (the “Preferred Stock”), and established the voting powers, designations, preferences and relative, participating, optional or other rights, if any, or
the qualifications, limitations or restrictions thereof, and, on September 24, 2010, filed a Certificate of Designation with respect to such Preferred Stock in the office of the Secretary of State of the State of Delaware (the “Secretary
of State”). 
 2. That no shares of said Preferred Stock are outstanding and no shares thereof will be issued subject to
said Certificate of Designation. 
 3. That the Board of Directors of the Company has adopted the following resolutions:

 WHEREAS, by resolution of the Board and by a Certificate of Designation filed in the office of the Secretary
of State of the State of Delaware (the “Secretary of State”) on September 24, 2010 (the “Certificate of Designation”), the Company authorized the issuance of a series of 250,000 shares of the Series A Preferred Stock and
established the voting powers, designations, preferences and relative, participating, optional or other rights, if any, or the qualifications, limitations or restrictions thereof; and 

WHEREAS, it is desirable that all matters set forth in the Certificate of Designation with respect to such Series A
Preferred Stock be eliminated from the Certificate of Incorporation, as heretofore amended, of the Company; 

RESOLVED, that no shares of such Series A Preferred Stock are outstanding and no shares of such Series A Preferred Stock
will be issued subject to said Certificate of Designation; 

 RESOLVED, that all matters set forth in the Certificate of Designation with
respect to the Series A Preferred Stock be eliminated from the Certificate of Incorporation, as heretofore amended, of the Company; and 
 RESOLVED, that the officers of the Company be, and hereby are, authorized and directed to file a Certificate of Elimination with the office of the Secretary of State of the State of Delaware setting forth
a copy of these resolutions whereupon all matters set forth in the Certificate of Designation with respect to the Series A Preferred Stock shall be eliminated from the Certificate of Incorporation, as heretofore amended, of the Company; 

4. That, accordingly, all matters set forth in the Certificate of Designation with respect to the Preferred Stock be, and hereby are,
eliminated from the Certificate of Incorporation, as heretofore amended, of the Company. 

  
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 IN WITNESS WHEREOF, IRIS International, Inc. has caused this Certificate of Elimination to
be executed by its duly authorized officer this 1st day of December, 2011. 
  

			
	IRIS International, Inc.
		
	By:	 	           /s/ César
García

		 	César García
		 	Chief Executive Officer and President
		 	IRIS International, Inc.

  
 3Employment Ageement

 Exhibit 10.1 
 EMPLOYMENT AGREEMENT 
 This Employment Agreement (this
“Agreement”) is made and entered into by and between ION Geophysical Corporation, a Delaware corporation (hereinafter referred to as “Employer”), and Gregory J. Heinlein (hereinafter referred to as “Employee”),
effective as of November 28th, 2011 (the “Effective Date”). 
 WHEREAS, Employer has offered Employee employment
with Employer as its Senior Vice President and Chief Financial Officer in an “offer letter” dated October 20, 2011 and executed by Employee November 3, 2011 (the “Offer Letter”), the entirety of which is incorporated
herein by reference; 
 WHEREAS, Employee desires to enter into the employment of Employer as its Senior Vice President and
Chief Financial Officer, pursuant to the terms set out in the Offer Letter and this Agreement; and Employer desires to employ Employee in such position, pursuant to the terms set out in the Offer Letter and this Agreement; 

NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, Employer and Employee agree as follows: 
 Section 1. Severance. 

(a) If (i) Employee’s employment with Employer is terminated during the term of this Agreement by Employer for no reason or for
any reason other than Cause or the death or Disability of Employee or (ii) Employee terminates his employment with Employer for Good Reason; then Employer will pay or provide to Employee the following: 

(1) Employee’s base salary earned and payable through the Date of Termination; 

(2) Any unpaid incentive compensation earned by Employee pursuant to the terms of the relevant incentive compensation
arrangement with respect to the year of the Date of Termination. Any such amount payable to Employee pursuant to the foregoing shall be payable to Employee at such time that incentive compensation for such year is paid to other recipients under the
plan and shall be subject to the terms or requirements of such incentive compensation as may be set forth in the plan or established by the Board of Directors of Employer or Compensation Committee; 

(3) an aggregate amount (the “Severance Payment”) equal to two-times Employee’s highest annual base salary
earned during the term of his employment with Employer, which Severance Payment will be paid to Employee over a two-year period in accordance with Employer’s normal payroll practices; and 

(4) Employee’s vesting and exercise rights with regard to outstanding stock options, restricted stock, performance
shares and other equity grants shall be in accordance with the applicable plan and award agreements. 

  
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 Except as otherwise provided above, all other compensation and benefits will cease upon the Date of
Termination other than the following: (i) those benefits that are provided by retirement and benefit plans and programs specifically adopted and approved by Employer for Employee that are earned and vested by the Date of Termination; and
(ii) medical and similar benefits the continuation of which is required by applicable law or as provided by the applicable benefit plan. As a condition to making the payments and providing the benefits specified in this Section 1, Employer
will require that Employee execute a release in form and substance reasonably satisfactory to Employer of all claims Employee may have against Employer at the time of Employee’s termination. 

(b) As used in this Agreement, “Disability” means permanent and total disability (within the meaning of Section 22(e)(3)
of the Internal Revenue Code of 1986, as amended (the “Code”), or any successor provision) which has existed for at least 180 consecutive days. 
 (c) As used in this Agreement, “Cause” means: 
 (1) the
willful and continued failure by Employee to substantially perform his employment obligations to Employer (other than any such failure resulting from his Disability) after a demand for substantial performance has been delivered to him by the Board
which specifically identifies the manner in which the Board believes Employee has not substantially performed such provisions and Employee has failed to remedy the situation within ten (10) days after such demand, or a willful and material
violation of the Employer’s Code of Ethics; 
 (2) Employee’s willfully engaging in conduct materially
and demonstrably injurious to the property or business of Employer, including without limitation, fraud, misappropriation of funds or other property of Employer, other willful misconduct, gross negligence or conviction of a felony or any crime of
moral turpitude; or 
 (3) Employee’s material breach of this Agreement, which breach has not been remedied
by Employee within ten (10) days after receipt by Employee of written notice from Employer that he is in material breach of this Agreement, specifying the particulars of such breach. 
 For purposes of this Agreement, no act, or failure to act, on the part of Employee shall be deemed “willful” or engaged in “willfully” if it was due primarily to an error in judgment
or negligence, but shall be deemed “willful” or engaged in “willfully” only if done, or omitted to be done, by Employee not in good faith and without reasonable belief that his action or omission was in the best interest of
Employer. Notwithstanding the foregoing, Employee shall not be deemed to have been terminated as a result of “Cause” hereunder unless and until there shall have been delivered to Employee a copy of a resolution duly adopted by the
affirmative vote of not less than three-quarters of the Board then in office at a meeting of the Board called and held 

  
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for such purpose (after reasonable notice to Employee and an opportunity for Employee, together with his counsel, to be heard before the Board), finding that, in the good faith opinion of the
Board of Directors, Employee has committed an act set forth above in this Section 1(c) and specifying the particulars thereof in detail. Nothing herein shall limit the right of Employee or his or her legal representatives to contest the
validity or propriety of any such determination. 
 (d) As used in this Agreement, “Good Reason” means any of the
following: 
 (1) a reduction in any material respect in Employee’s position, duties or responsibilities
with Company, or 
 (2) a reduction of Employee’s annual base salary, unless agreed to by Employee.

 (e) Any termination by Employer of Employee’s employment with Employer shall be communicated by written notice (a
“Notice of Termination”) from Employer to Employee that shall: 
 (1) indicate the specific provision
of this Agreement relied upon for such termination; 
 (2) indicate the specific provision of this Agreement
pursuant to which Employee is to receive compensation and other benefits as a result of such termination; and 

(3) otherwise comply with the provisions of this Section 1(e). 

If a Notice of Termination states that Employee’s employment with Employer has been terminated as a result of Employee’s Disability, the notice
shall (i) specifically describe the basis for the determination of Employee’s Disability, and (ii) state the date of the determination of Employee’s Disability, which date shall be not more than ten (10) days before the date
such notice is given. If the notice states that Employee’s employment with Employer is terminated by Employer as a result of the occurrence of Cause, the Notice of Termination shall specifically describe the action or inaction of Employee that
Employer believes constitutes Cause and shall be accompanied by a copy of the resolution satisfying Section 1(c). 
 (f) As
used in this Agreement, “Date of Termination” means: 
 (1) if Employee’s employment with Employer
is terminated for Disability, sixty (60) days after Notice of Termination is received by Employee or any later date specified therein, provided that within such sixty (60) day period Employee shall not have returned to full-time
performance of Employee’s duties; 
 (2) if Employee’s employment with Employer is terminated as a
result of Employee’s death, the date of death of Employee; 

  
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 (3) if Employee’s employment with Employer is terminated for Cause, the
date Notice of Termination, accompanied by a copy of the resolution satisfying Section 1(c), is received by Employee or any later date specified therein, provided that Employer may, in its discretion, condition Employee’s continued
employment upon such considerations or requirements as may be reasonable under the circumstances and place a reasonable limitation upon the time within which Employee will comply with such considerations or requirements; 

(4) if Employee’s employment with Employer is terminated for any reason other than Employee’s Disability,
Employee’s death or Cause, or for no reason, the date that is fourteen (14) days after the date of receipt of the Notice of Termination; or 
 (5) if Employee terminates his employment for Good Reason, the date that is fourteen (14) days after the date of Employer’s receipt of Employee’s written resignation. 

(g) Nothing in this Section 1 shall prevent or limit Employee’s continuing or future participation in any plan, program, policy
or practice of or provided by Employer or any of its affiliates and for which Employee may qualify, nor shall anything herein limit or otherwise affect such rights as Employee may have under any stock option or other agreements with Employer or any
of its affiliates. Amounts which are vested benefits or which Employee is otherwise entitled to receive under any plan, program, policy or practice of or provided by, or any other contract or agreement with, Employer or any of its affiliates at or
subsequent to the Date of Termination shall be payable or otherwise provided in accordance with such plan, program, policy or practice or contract or agreement except as explicitly modified by this Agreement. 

Section 2. Fiduciary Duty; Confidentiality. 
 (a) In keeping with Employee’s fiduciary duties to Employer, Employee agrees that he will not knowingly take any action that would create a conflict of interest with Employer, or upon discovery
thereof, allow such a conflict to continue. In the event that Employee discovers that such a conflict exists, Employee agrees that he will disclose to the Board any facts which might involve a conflict of interest that has not been approved by the
Board. 
 (b) As part of Employee’s fiduciary duties to Employer, Employee agrees to protect and safeguard Employer’s
information, ideas, concepts, improvements, discoveries, and inventions and any proprietary, confidential and other information relating to Employer or its business (collectively, “Confidential Information”) and, except as may be required
by Employer, Employee will not knowingly, either during his employment by Employer or thereafter, directly or indirectly, use for his own benefit or for the benefit of another, or disclose to another, any Confidential Information, except
(i) with the prior written consent of Employer; (ii) in the course of the proper performance of Employee’s duties under this Agreement; (iii) for information that becomes generally available to the public other than as a result
of the unauthorized disclosure by Employee; (iv) for information that becomes available to Employee on a non-confidential basis from a source other than Employer or its affiliated companies who is not bound by a duty of confidentiality to
Employer; or (v) as may be required by any applicable law, rule, regulation or order. 

  
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 (c) Upon termination of his employment with Employer, Employee will immediately deliver to
Employer all documents in Employee’s possession or under his control which embody any of Employer’s Confidential Information. 
 (d) In addition to the foregoing provisions of this Section 2, and effective as of the Effective Date, Employee reaffirms the duties imposed upon Employee by that certain Employee Proprietary
Information Agreement (or similar agreement) by and between Employer and Employee signed in conjunction with Employee’s commencement of employment. 
 (e) Employee will comply with Employer’s Code of Ethics, and any amendments or replacement policies adopted by the Board (the “Code of Ethics”). 

Section 3. Term of Agreement. The term of this Agreement will commence effective as of the Effective Date, and, subject to the terms and
conditions hereof, will continue for as long as Employee is employed by Employer as its Senior Vice President and Chief Financial Officer (or similar title). Notwithstanding any provision contained herein to the contrary, Employee acknowledges that
his employment with Employer is at will and that Employer may terminate his employment at any time and for any reason or for no reason at the discretion of Employer, but subject to any rights Employee has under Section 1 of this Agreement.

 Section 4. Non-Competition; Non-Solicitation; No Hire. 
 (a) Employee agrees that, effective as of the Effective Date and for a period of twelve (12) months after the Date of Termination (such applicable period being referred to herein as the
“Non-Compete Period”), Employee shall not, without the prior written consent of Employer, directly or indirectly, anywhere in the world, engage, invest, own any interest, or participate in, consult with, render services to, or be employed
by any business, person, firm or entity that is in competition with the “Business” (as defined in Section 4(d)) of Employer or any of its subsidiaries or affiliates, except for the account of Employer and its subsidiaries and
affiliates; provided, however, that during the Non-Compete Period Employee may acquire, solely as a passive investment, not more than two percent (2%) of the outstanding shares or other units of any security of any entity subject to the
requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended. Employee acknowledges that a remedy at law for any breach or attempted breach of this covenant not to compete will be inadequate and further agrees that any
breach of this covenant not to compete will result in irreparable harm to Employer, and, accordingly, Employer shall, in addition to any other remedy that may be available to it, be entitled to specific performance and temporary and permanent
injunctive and other equitable relief (without proof of actual damage or inadequacy of legal remedy) in case of any such breach or attempted breach. Employee acknowledges that this covenant not to compete is being provided as an inducement to
Employer to enter into this Agreement and that this covenant not to compete contains reasonable limitations as to time, geographical area and scope of activity to be restrained that do not impose a greater restraint than is necessary to protect the
goodwill or other business interest of Employer. Whenever possible, each provision of this covenant not to compete shall be interpreted in such a manner as to be effective and valid under applicable law

  
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but if any provision of this covenant not to compete shall be prohibited by or invalid under applicable law, such provision of this covenant not to compete shall be prohibited by or invalid under
applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remaining provisions of this covenant not to compete. If any provision of this covenant not to compete shall, for any
reason, be judged by any court of competent jurisdiction to be invalid or unenforceable, such judgment shall not affect, impair or invalidate the remainder of this covenant not to compete but shall be confined in its operation to the provision of
this covenant not to compete directly involved in the controversy in which such judgment shall have been rendered. In the event that the provisions of this covenant not to compete should ever be deemed to exceed the time or geographic limitations
permitted by applicable laws, then such provision shall be reformed to the maximum time or geographic limitations permitted by applicable law. 
 (b) In addition to the restrictions set forth in Section 4(a), Employee agrees that, during the Non-Compete Period, Employee will not, either directly or indirectly, (i) make known to any
person, firm or entity that is in competition with the Business of Employer or any of its subsidiaries or affiliates the names and addresses of any of the suppliers or customers of Employer or any of its subsidiaries or affiliates, potential
customers of Employer or any of its subsidiaries or affiliates upon whom Employer or any of its subsidiaries or affiliates has called upon in the twelve (12) months preceding the Date of Termination, or (ii) call on, solicit, or take away,
or attempt to call on, solicit or take away any of the suppliers or customers of Employer or any of its subsidiaries or affiliates, whether for Employee or for any other person, firm or entity. 

(c) Regardless of the reason for any termination of Employee’s employment, effective as of the Effective Date and for twelve
(12) months following the Date of Termination, Employee will not, either on his or her own account or for any other person, firm, partnership, corporation, or other entity (i) solicit any employee of Employer or any of its subsidiaries or
affiliates to leave such employment; or (ii) induce or attempt to induce any such employee to breach her or his employment agreement with Employer or any of its subsidiaries or affiliates. This restriction shall not apply in the case of any
employee or former employee of Employer who at his or her own initiative seeks, without solicitation or encouragement by Employee, a change of employment or responds to solicitations made by means of general advertisement. 

(d) As used in this Agreement, “Business” means the business of (i) design, manufacture, marketing and sale of equipment
for seismic acquisition, (ii) seismic processing (iii) seismic navigation and data management software or (iv) planning, performing or licensing multi-client seismic surveys. 

(e) In the event that Employee breaches or violates any of the terms and conditions of this Section 4 during the Non-Compete Period,
then in addition to the other rights and remedies available to Employer hereunder, Employer’s obligations to pay to Employee any remaining installments of the Severance Payment otherwise due and owing pursuant to Section 1 hereof, shall
cease and terminate. 

  
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 Section 5. Successors; Binding Agreement. 

(a) This Agreement is personal to Employee and without the prior written consent of Employer shall not be assignable by Employee otherwise
than by will or the laws of descent and distribution. This Agreement shall inure to the benefit of and be enforceable by Employee’s personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and
legatees. 
 (b) This Agreement shall inure to the benefit of and be binding upon Employer and its successors and assigns.

 (c) Employer will require any successor (whether direct or indirect, by purchase, merger, amalgamation, consolidation or
otherwise) to all or substantially all of the business and/or assets of Employer, by agreement in form and substance reasonably satisfactory to Employee, to expressly assume and agree to perform this Agreement in the same manner and to the same
extent that Employer would be required to perform it if no such succession had taken place. As used in this Agreement, “Employer” shall mean Employer as hereinbefore defined and any successor to its business and/or assets as aforesaid
which assumes and agrees to perform this Agreement by execution and delivery of the agreement provided for in this Section 5(c) or which otherwise becomes bound by the terms and provisions of this Agreement by operation of law or otherwise.

 Section 6. Miscellaneous. 
 (a) All notices and other communications required or permitted hereunder or necessary or convenient in connection herewith will be in writing and will be delivered by hand or by registered or certified
mail, return receipt requested to the addresses set forth below in this Section 6(a): 
 If to Employer, to: 

ION Geophysical Corporation 
 2105 CityWest Blvd., Suite 400 
 Houston, TX 77042-2839 

Attention: Chief Executive Officer 
 with a copy to: 
 ION Geophysical Corporation 

2105 CityWest Blvd., Suite 400 
 Houston, TX 77042-2839 
 Attention: General Counsel 

If to Employee, to: 
 Gregory J. Heinlein 
 1924 Wimberly Lane 

Austin, TX 78735 

  
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 or to such other names or addresses as Employer or Employee, as the case may be, designate by notice to the
other party hereto in the manner specified in this Section. 
 (b) This Agreement supersedes, replaces and merges all previous
agreements and discussions relating to the same or similar subject matters between Employee and Employer and constitutes the entire agreement between Employee and Employer with respect to the subject matter of this Agreement, except for any other
agreements expressly referred to in this Agreement, each of which shall remain in full force and effect. This Agreement may not be modified in any respect by any verbal statement, representation or agreement made by any employee, officer, or
representative of Employer or by any written agreement unless signed by an officer of Employer who is expressly authorized by the Board to execute such document. 
 (c) If any provision of this Agreement or application thereof to any one or under any circumstances should be determined to be invalid or unenforceable, such invalidity or unenforceability will not affect
any other provisions or applications of this Agreement which can be given effect without the invalid or unenforceable provision or application. In addition, if any provision of this Agreement is held by an arbitration panel or a court of competent
jurisdiction to be invalid, unenforceable, unreasonable, unduly restrictive or overly broad, the parties intend that such arbitration panel or court modify said provision so as to render it valid, enforceable, reasonable and not unduly restrictive
or overly broad. 
 (d) The internal laws of the State of Texas will govern the interpretation, validity, enforcement and effect
of this Agreement without regard to the place of execution or the place for performance thereof. 
 (e) The covenants,
agreements, rights and obligations of Employer under this Agreement, and the covenants, agreements, rights and obligations of Employee under this Agreement, shall survive the termination of this Agreement for any reason including, but not limited
to, the termination of Employee’s employment with Employer. All covenants, agreements, indemnities, warranties, rights and obligations contained herein shall continue for so long as necessary in order for Employer and Employee to enforce their
rights hereunder. 
 Section 7. Arbitration. 
 (a) Employer and Employee agree to submit to final and binding arbitration any and all disputes or disagreements concerning the interpretation or application of this Agreement. Any such dispute or
disagreement will be resolved by arbitration in accordance with the National Rules for the Resolution of Employment Disputes of the American Arbitration Association (the “AAA Rules”). Arbitration will take place in Houston, Texas, unless
the parties mutually agree to a different location. Within thirty (30) calendar days of the initiation of arbitration hereunder, each party will designate an arbitrator. The appointed arbitrators will then appoint a third arbitrator. Employee
and Employer agree that the decision of the arbitrators will be final and binding on both parties. Any court having jurisdiction may enter a judgment upon the award rendered by the arbitrators. 

(b) Notwithstanding the provisions of Section 6(a), Employer may, if it so chooses, bring an action in any court of competent
jurisdiction for injunctive relief to enforce Employee’s obligations under Section 4. 

  
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 IN WITNESS WHEREOF, the undersigned, intending to be legally bound, have executed this
Agreement as to be effective as of the Effective Date. 
  

			
	EMPLOYER:
	
	ION GEOPHYSICAL CORPORATION
		
	By:	 	 /s/ R. Brian Hanson

		 	R. Brian Hanson
		 	President and Chief Operating Officer
	
	EMPLOYEE:
	
	 /s/ Gregory J. Heinlein

	Gregory J. Heinlein

  
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