Document:

EX-10.1

 Exhibit 10.1 
 Execution Copy 
 8.0% Convertible Senior Unsecured Notes

 FUELCELL ENERGY, INC. 
 UNDERWRITING AGREEMENT 
 June 19, 2013 

Lazard Capital Markets LLC 
 As Representative
of the several Underwriters set forth in Schedule C 
 c/o Lazard Capital Markets LLC 
 30 Rockefeller Plaza 
 New York, New York 10020 

Dear Sirs: 
 1.
INTRODUCTION. FuelCell Energy, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters set forth in Schedule C hereto), pursuant to the terms and
conditions of this Underwriting Agreement (this “Agreement”), an aggregate of $38,000,000 principal amount of the Company’s 8.0% Convertible Senior Unsecured Notes (the “Notes”). The Notes will be issued
pursuant to an Indenture dated as of the Closing Date (the “Indenture”) between the Company and U.S. Bank National Association, as trustee (the “Trustee”), as supplemented by the supplemental indenture to be dated
the Closing Date, in the form of Exhibit A attached hereto. Securities issued via Deposit/Withdrawal At Custodian will be issued to Cede & Co., as nominee of The Depository Trust Company (“DTC”) pursuant to a letter
of representations (the “DTC Agreement”), between the Company and DTC. The Notes (as hereinafter defined) are convertible into shares (the “Underlying Common Stock”) of the common stock, $0.0001 par value per share
(the “Common Stock”), of the Company, in accordance with the terms of the Notes and the Indenture, at the initial conversion rate specified in the final term sheet, under the circumstances and subject to adjustment as set forth in
the Indenture. The Notes and the Underlying Common Stock are collectively referred to herein as the “Securities.” 
 The Company hereby confirms that Lazard Capital Markets LLC (“LCM”) and Stifel, Nicolaus & Company, Incorporated (“SNC”, and together with LCM, the
“Underwriters”) acted as the Underwriters in accordance with the terms and conditions hereof. LCM is acting as the representative of the Underwriters and in such capacity is hereinafter referred to as the
“Representative.” The offering and sale of the Notes is hereinafter referred to as the “Offering.” 
  

 2. DELIVERY AND PAYMENT. On the basis of
the representations, warranties and agreements of the Company herein contained, and subject to the terms and conditions set forth in this Agreement: 
 2.1 The Company agrees to issue and sell and the Underwriters, severally and not jointly, agree to purchase from the Company Notes at a purchase price of 94.5% of the Public Offering Price as set forth in
Schedule C hereto (the “Purchase Price”) on the Closing Date (as defined below). The Company has been advised by you that you propose to make a public offering of the Notes as soon after this Agreement has become effective as
in your judgment is advisable. The Company is further advised by you that the Notes are to be offered to the public initially at 100% of the aggregate principal amount of the Notes (“Public Offering Price”). 

2.2 Payment for the Notes shall be made at the time and date of closing and delivery of the documents required to be
delivered to the Underwriters pursuant to Sections 4 and 6 hereof shall be made to the Company in Federal or other funds immediately available in New York City against delivery of such Notes at 10:00 A.M., New York time, on
June 25, 2013 (the “Closing Date”) at the office of Patterson Belknap Webb & Tyler LLP, 1133 Avenue of the Americas, New York, NY 10036 or at such other time and date as the Representative and the Company determine
pursuant to Rule 15c6-1(a) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). 

2.3 Delivery of the Notes shall be made through the facilities of The Depository Trust Company and shall be in global form
unless the Representative shall otherwise instruct. 
 3. REPRESENTATIONS AND
WARRANTIES OF THE COMPANY. The Company represents and warrants to the Underwriters, as of the date hereof and as of the closing date, and agrees with the Underwriters that: 

(a) The Company has prepared and filed in conformity with the requirements of the Securities Act of 1933, as amended (the
“Securities Act”), and published rules and regulations thereunder (the “Rules and Regulations”) adopted by the Securities and Exchange Commission (the “Commission”) a “shelf” Registration
Statement (as hereinafter defined) on Form S-3 (File No. 333-164412), which became effective as of September 21, 2010 (the “Effective Date”), including a base prospectus relating to the Notes (the “Base
Prospectus”), and such amendments and supplements thereto as may have been required up to the date of this Agreement. The term “Registration Statement” as used in this Agreement means the registration statement (including
all exhibits, financial schedules and all documents and information deemed to be a part of the Registration Statement pursuant to Rule 430B of the Rules and Regulations), as amended and/or supplemented to the date of this Agreement, including the
Base Prospectus. The Registration Statement is effective under the Securities Act and no stop order preventing or suspending the effectiveness of the Registration Statement or suspending or preventing the use of the Prospectus has been issued by the
Commission and no proceedings for that purpose have been instituted or, to the Company’s knowledge, are threatened by the Commission. The Company, if required by the Rules and Regulations of the Commission, will file the Prospectus (as defined
below), with the Commission pursuant to Rule 424(b) of the Rules and Regulations. The term “Prospectus” as used in this Agreement means the Prospectus, in the form in which it is

  
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to be filed with the Commission pursuant to Rule 424(b) of the Rules and Regulations, or, if the Prospectus is not to be filed with the Commission pursuant to Rule 424(b), the Prospectus in the
form included as part of the Registration Statement as of the Effective Date, except that if any revised prospectus or prospectus supplement shall be provided to the Underwriters by the Company for use in connection with the Offering which differs
from the Prospectus (whether or not such revised prospectus or prospectus supplement is required to be filed by the Company pursuant to Rule 424(b) of the Rules and Regulations), the term “Prospectus” shall refer to such revised
prospectus or prospectus supplement, as the case may be, from and after the time it is first provided to the Underwriters for such use (or in the form first made available to the Underwriters by the Company to meet requests of prospective purchasers
pursuant to Rule 173 under the Securities Act) . Any preliminary prospectus or prospectus subject to completion included in the Registration Statement or filed with the Commission pursuant to Rule 424 of the Rules and Regulations is hereafter called
a “Preliminary Prospectus.” Any reference herein to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to
Item 12 of Form S-3 which were filed under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), on or before the last to occur of the Effective Date, the date of the Preliminary Prospectus, or the date of the
Prospectus, and any reference herein to the terms “amend,” “amendment,” or “supplement” with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include
(i) the filing of any document under the Exchange Act after the Effective Date, the date of such Preliminary Prospectus or the date of the Prospectus, as the case may be, which is incorporated by reference and (ii) any such document so
filed. If the Company has filed an abbreviated registration statement to register additional securities pursuant to Rule 462(b) under the Rules and Regulations (the “462(b) Registration Statement”), then any reference herein to the
Registration Statement shall also be deemed to include such 462(b) Registration Statement. 
 (b) The conditions
to the use of Form S-3 in connection with the offering and sale of the Notes as contemplated hereby have been satisfied. The Registration Statement meets, and the offering and sale of the Notes as contemplated hereby complies with, the requirements
of Rule 415 under the Securities Act (including, without limitation, Rule 415(a)(4) and (a)(5) of the Rules and Regulations). 
 (c) As of the Applicable Time (as defined below) and as of the Closing Date, neither (i) any General Use Free Writing Prospectus (as defined below) issued at or prior to the Applicable Time, and the
Pricing Prospectus (as defined below) and the information included on Schedule A hereto, all considered together (collectively, the “General Disclosure Package”), (ii) any individual Limited Use Free Writing Prospectus
(as defined below), nor (iii) the bona fide electronic road show (as defined in Rule 433(h)(5) of the Rules and Regulations), if any, that has been made available without restriction to any person, when considered together with the General
Disclosure Package, included or will include, any untrue statement of a material fact or omitted or as of the Closing Date will omit, to state a material fact necessary in order to make the statements

  
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therein, in the light of the circumstances under which they were made, not misleading; provided, however, that the Company makes no representations or warranties as to information
contained in or omitted from any Issuer Free Writing Prospectus, in reliance upon, and in conformity with, written information furnished to the Company by the Representative by or on behalf of the Underwriters specifically for inclusion therein,
which information the parties hereto agree is limited to the Underwriters’ Information (as defined in Section 16). As used in this paragraph (b) and elsewhere in this Agreement: 

“Applicable Time” means 8:00 A.M., New York time, on the date of this Agreement. 

“General Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is identified on Schedule
A to this Agreement. 
 “Issuer Free Writing Prospectus” means any “issuer free writing
prospectus,” as defined in Rule 433 of the Rules and Regulations relating to the Securities in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records
pursuant to Rule 433(g) of the Rules and Regulations. 
 “Limited Use Free Writing Prospectuses” means
any Issuer Free Writing Prospectus that is not a General Use Free Writing Prospectus. 
 “Pricing
Prospectus” means the Preliminary Prospectus, if any, and the Base Prospectus, each as amended and supplemented immediately prior to the Applicable Time, including any document incorporated by reference therein and any prospectus
supplement deemed to be a part thereof. 
 (d) No order preventing or suspending the use of any Preliminary
Prospectus, any Issuer Free Writing Prospectus or the Prospectus relating to the Offering has been issued by the Commission, and no proceeding for that purpose or pursuant to Section 8A of the Securities Act has been instituted or threatened by
the Commission, and each Preliminary Prospectus (if any), at the time of filing thereof, conformed in all material respects to the requirements of the Securities Act and the Rules and Regulations, and did not contain an untrue statement of a
material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that the Company makes
no representations or warranties as to information contained in or omitted from any Preliminary Prospectus, in reliance upon, and in conformity with, written information furnished to the Company by the Representative by or on behalf of the
Underwriters specifically for inclusion therein, which information the parties hereto agree is limited to the Underwriters’ Information (as defined in Section 16). 

 

  
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 (e) At the time the Registration Statement became effective, as of the date
of this Agreement and on the Closing Date, the Registration Statement conformed and will conform in all material respects to the requirements of the Securities Act and the Rules and Regulations and did not and will not contain any untrue statement
of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading; the Prospectus, at the time the Prospectus was issued and on the Closing Date, conformed and will conform
in all material respects to the requirements of the Securities Act and the Rules and Regulations and did not and will not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements
therein, in light of the circumstances under which they were made, not misleading; provided, however, that the foregoing representations and warranties in this paragraph (d) shall not apply to information contained in or omitted
from the Registration Statement or the Prospectus in reliance upon, and in conformity with, written information furnished to the Company by the Representative by or on behalf of the Underwriters specifically for inclusion therein, which information
the parties hereto agree is limited to the Underwriters’ Information (as defined in Section 16). 
 (f) Each Issuer Free Writing Prospectus, if any, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Notes or until any earlier date that the
Company notified or notifies the Representative as described in Section 4(e), did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration
Statement, Pricing Prospectus or the Prospectus, including any document incorporated by reference therein and any prospectus supplement deemed to be a part thereof that has not been superseded or modified, or includes an untrue statement of a
material fact or omitted or would omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. The foregoing sentence
does not apply to statements in or omissions from any Issuer Free Writing Prospectus in reliance upon, and in conformity with, written information furnished to the Company by the Representative by or on behalf of the Underwriters specifically for
inclusion therein, which information the parties hereto agree is limited to the Underwriters’ Information (as defined in Section 16). 
 (g) The documents incorporated by reference in the Prospectus, when they became effective or were filed with the Commission, as the case may be, conformed in all material respects to the requirements of
the Securities Act or the Exchange Act, as applicable, and the rules and regulations of the Commission thereunder and none of such documents contained any untrue statement of a material fact or omitted to state any material fact required to be
stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading; and any further documents so filed and incorporated by reference in the Prospectus, when such documents become
effective or are filed with the Commission, as the case may be, will conform in all material respects to the requirements of the Securities Act or the Exchange Act, as applicable, and the rules and regulations of the Commission thereunder and will
not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. 

 

  
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 (h) (i) At the earliest time after the filing of the Registration Statement
that the Company or another offering participant made a bona fide offer (within the meaning of Rule 164(h)(2) under the Securities Act) of the Notes and (ii) at the date hereof, the Company was not and is not an “ineligible issuer,”
as defined in Rule 405 under the Securities Act. The Company has not, directly or indirectly, distributed and will not distribute any offering material in connection with the Offering other than any Preliminary Prospectus, the Prospectus and other
materials, if any, permitted under the Securities Act and consistent with Section 4(b) below. The Company will file with the Commission all Issuer Free Writing Prospectuses (other than (i) a term sheet pursuant to Rule 433(d)(5) of
the Rules and Regulations and (ii) a “road show,” as defined in Rule 433(d)(8) of the Rules and Regulations), if any, in the time and manner required under Rules 163(b)(2) and 433(d) of the Rules and Regulations. 

(i) The Company and each of its subsidiaries (as defined in Section 15) have been duly organized and are
validly existing as corporations or other legal entities in good standing (or the foreign equivalent thereof) under the laws of their respective jurisdictions of organization. The Company and each of its subsidiaries are duly qualified to do
business and are in good standing as foreign corporations or other legal entities in each jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification and have all
power and authority (corporate or other) necessary to own or hold their respective properties and to conduct the businesses in which they are engaged, except where the failure to so qualify or have such power or authority would not (i) have,
singly or in the aggregate, a material adverse effect on the condition (financial or otherwise), results of operations, assets, properties, business or prospects of the Company and its subsidiaries taken as a whole, or (ii) impair in any
material respect the ability of the Company to perform its obligations under this Agreement or to consummate any transactions contemplated by this Agreement, the General Disclosure Package or the Prospectus (any such effect as described in clauses
(i) or (ii), a “Material Adverse Effect”). The Company owns or controls, directly or indirectly, only the following corporations, partnerships, limited liability partnerships, limited liability companies, associations or other
entities: (i) FCE FuelCell Energy, Ltd., a Canadian company, (ii) Alliance Star Energy, LLC, a California limited liability company, (iii) Bridgeport Fuel Cell Park, LLC, a Connecticut limited liability company, (iv) ERG Milford,
LLC, a Connecticut limited liability company, (v) ERG Connecticut, LLC, a Connecticut limited liability company, (vi) Star Energy East, LLC, a Connecticut limited liability company, (vii) Long Beach Clean Energy, LLC, a New York
limited liability company, (viii) FuelCell Energy Solutions GmbH, a German company, (ix) FCE Korea, Ltd., a South Korean company (x) Versa Power Systems, Inc., a Delaware corporation, (xi) Versa Power Systems, Ltd., a Canadian
Company and (xii) Waterbury Renewable Energy, LLC, a Delaware limited liability company. 
 (j) The Company
has the full right, power and authority to enter into this Agreement, the Indenture and the Notes and to perform and to discharge its obligations hereunder and thereunder; including, without limitation, the full right, power and authority to issue,
sell and deliver the Notes and the Underlying Common Stock; and each of this Agreement, the Indenture and the Notes has been duly authorized, and when executed and delivered by the Company, and constitutes a valid and binding obligation of the
Company enforceable against the Company in accordance with its terms, except as rights to indemnify hereunder may be limited by federal or state securities laws and except as such enforceability may be limited by applicable bankruptcy, insolvency,
reorganization or similar laws affecting the rights of creditors generally and subject to general principles of equity. 

  
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 (k) The Notes to be issued and sold by the Company to the Underwriters
hereunder have been duly and validly authorized and, when authenticated, issued and delivered by the Company in the manner provided for in the Indenture and delivered against payment of the purchase price therefor as provided herein will conform to
the description thereof contained in the General Disclosure Package and the Prospectus. There are no preemptive rights or other rights to subscribe for or to purchase any notes, shares of Common Stock or shares of any other capital stock or other
equity interests of the Company or any of its subsidiaries, or any agreement or arrangement between the Company and any of the Company’s stockholders or between any of the Company’s subsidiaries and any of such subsidiary’s
stockholders, or to the Company’s knowledge, between or among any of the Company’s stockholders or any of its subsidiaries’ stockholders, which grant special rights with respect to any notes, shares of the Company’s or any of its
subsidiaries’ capital stock or which in any way affect any stockholder’s ability or right to alienate freely or vote such shares (other than rights which have been waived in writing in connection with the issuance and sale of the Notes and
the other transactions contemplated by this Agreement or otherwise satisfied). In connection with this Offering, the Company has received a written waiver from POSCO Power (“POSCO”) of its investor rights under that certain
Securities Purchase Agreement between POSCO and the Company, dated April 30, 2012 (“Posco Securities Purchase Agreement”) and any other agreement that may be in effect with POSCO. 

(l) The Underlying Common Stock conforms to all statements relating thereto contained or incorporated by reference in the
Registration Statement, the General Disclosure Package and the Prospectus. Upon issuance and delivery of the Notes in accordance with this Agreement and the Indenture, the Notes will be convertible at the option of the holder thereof for shares of
the Underlying Common Stock in accordance with the terms of the Notes and the Indenture; the shares of the Underlying Common Stock issuable upon conversion of the Notes have been duly authorized and reserved for issuance upon such conversion by all
necessary corporate action and such shares, when issued upon such conversion, will be validly issued and will be fully paid and non-assessable; no holder of such shares will be subject to personal liability by reason of being such a holder; and the
issuance of such shares upon such conversion will not be subject to the pre-emptive or other similar rights of any security-holder of the Company. 
  

  
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 (m) The Company has an authorized capitalization as set forth in the Pricing
Prospectus, and all of the issued shares of the Company have been duly and validly authorized and issued, are fully paid and nonassessable, have been issued in compliance with federal and state securities laws, and conform to the description thereof
contained in the General Disclosure Package and the Prospectus. As of May 31, 2013, there were 192,062,499 shares of Common Stock, par value $0.0001, issued and outstanding, 64,020 Series B preferred shares issued and outstanding, convertible
into 5,448,512 shares of common stock and the Company’s Series 1 preferred shares, issued and outstanding, which is currently convertible into 11,997,669 share of common stock and 3,231,539 shares of Common Stock were issuable upon the exercise
of all options, warrants and convertible securities outstanding as of such date. Since such date, the Company has not issued any securities, other than Common Stock of the Company issued pursuant to the exercise of stock options previously
outstanding under the Company’s stock plans or the issuance of options or restricted Common Stock under the Company’s stock plans. All of the stock options, warrants and other rights to purchase or exchange any securities for shares of the
Company’s capital stock have been duly authorized and validly issued, and were issued in compliance with US federal and state securities laws. None of the outstanding shares of Common Stock was issued in violation of any preemptive rights,
rights of first refusal or other similar rights to subscribe for or purchase securities of the Company. There are no authorized or outstanding shares of capital stock, options, warrants, preemptive rights, rights of first refusal or other rights to
purchase, or equity or debt securities convertible into or exchangeable or exercisable for, any capital stock of the Company or any of its subsidiaries other than those described above or accurately described in the General Disclosure Package. The
description of the Company’s stock option, stock bonus and other stock plans or arrangements, and the stock options or other rights granted thereunder, as described in the General Disclosure Package and the Prospectus, accurately and fairly
present the information required to be shown with respect to such plans, arrangements, stock options and rights. 

(n) All the outstanding shares of capital stock or other equity interests of each subsidiary of the Company have been duly
authorized and validly issued, are fully paid and nonassessable and, except to the extent set forth in the General Disclosure Package or the Prospectus, are owned by the Company directly or indirectly through one or more wholly-owned subsidiaries,
free and clear of any claim, lien, encumbrance, security interest, restriction upon voting or transfer or any other claim of any third party. 
 (o) The Indenture has been duly authorized by the Company and duly qualified under the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and, when duly executed and
delivered by the Company and the Trustee, will constitute a valid and binding agreement of the Company, enforceable against the Company in accordance with its terms, except as the enforcement thereof may be limited by bankruptcy, insolvency
(including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors’ rights generally and except as enforcement thereof is subject to general principles of
equity (regardless of whether enforcement is considered in a proceeding in equity or at law). 
 (p) The Notes
and the Indenture will conform in all material respects to the respective statements relating thereto contained in the Registration Statement, the General Disclosure Package and the Prospectus and will be in substantially the respective forms filed
or incorporated by reference, as the case may be, as exhibits to the Registration Statement. 

  
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 (q) The execution, delivery and performance of this Agreement, the Indenture
and the Notes by the Company, the issuance and sale of the Notes and the Underlying Common Stock by the Company and the consummation of the transactions contemplated hereby and thereby will not (with or without notice or lapse of time or both)
(i) conflict with or result in a breach or violation of any of the terms or provisions of, constitute a default or Debt Repayment Triggering Event (as defined below) under, give rise to any right of termination or other right or the
cancellation or acceleration of any right or obligation or loss of a benefit under, or give rise to the creation or imposition of any lien, encumbrance, security interest, claim or charge upon any property or assets of the Company or any subsidiary
pursuant to, any indenture, mortgage, deed of trust, loan agreement or other 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 is bound or to which any of the
property or assets of the Company or any of its subsidiaries is subject, (ii) result in any violation of the provisions of the charter or by-laws (or analogous governing instruments, as applicable) of the Company or any of its subsidiaries or
(iii) result in any violation of any law, statute, rule, regulation, judgment, order or decree of any court or governmental agency or body, domestic or foreign, having jurisdiction over the Company or any of its subsidiaries or any of their
properties or assets, except with respect to clauses (i) and (iii) above, to the extent any such conflict, breach or violation has been waived or would not result in a Material Adverse Effect. A “Debt Repayment Triggering
Event” means any event or condition that gives, or with the giving of notice or lapse of time would give the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to
require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any of its subsidiaries. 
 (r) No consent, approval, authorization or order of, or filing, qualification or registration with, any court or governmental agency or body, foreign or domestic, which has not been made, obtained or
taken and is not in full force and effect, is required for the execution, delivery and performance of this Agreement, the Notes, the Indenture and the DTC Agreement by the Company, the offer or sale of the Notes and Underlying Common Stock or the
consummation of the transactions contemplated hereby or thereby, except for the registration of the Notes and the Underlying Common Stock under the Securities Act and such consents, approvals, authorizations, registrations or qualifications as may
be required under the Exchange Act, the Trust Indenture Act and applicable state securities laws, the Financial Industry Regulatory Authority (“FINRA”) and the NASDAQ Global Market (the “NASDAQ GM”) in connection
with the Offering by the Company, and the listing of the Underlying Common Stock on the NASDAQ GM. 
 (s) KPMG,
LLP, who have certified certain financial statements and related schedules included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus, and have audited the Company’s internal control
over financial reporting and management’s assessment thereof, is an independent registered public accounting firm as required by the Securities Act and the Rules and Regulations and the Public Company Accounting Oversight Board (United States)
(the “PCAOB”). Except as pre-approved in accordance with the requirements set forth in Section 10A of the Exchange Act, KPMG, LLP has not been engaged by the Company to perform any “prohibited activities” (as defined
in Section 10A of the Exchange Act). 

  
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 (t) The financial statements, together with the related notes and schedules,
included or incorporated by reference in the General Disclosure Package, the Prospectus and in the Registration Statement fairly present the financial position and the results of operations and changes in stockholders’ equity and cash flows of
the Company and its consolidated subsidiaries and other consolidated entities at the respective dates or for the respective periods therein specified. Such statements and related notes and schedules have been prepared in accordance with generally
accepted accounting principles in the United States (“GAAP”) applied on a consistent basis throughout the periods involved except as may be set forth in the related notes included or incorporated by reference in the General
Disclosure Package. The financial statements, together with the related notes and schedules, included or incorporated by reference in the General Disclosure Package and the Prospectus comply in all material respects with the Securities Act, the
Exchange Act, and the Rules and Regulations and the rules and regulations under the Exchange Act. No other financial statements or supporting schedules or exhibits are required by the Securities Act or the Rules and Regulations to be described, or
included or incorporated by reference in the Registration Statement, the General Disclosure Package or the Prospectus. There is no pro forma or as adjusted financial information which is required to be included in the Registration Statement, the
General Disclosure Package, or and the Prospectus or a document incorporated by reference therein in accordance with the Securities Act and the Rules and Regulations which has not been included or incorporated as so required. 

(u) Neither the Company nor any of its subsidiaries has sustained, since the date of the latest audited financial
statements included or incorporated by reference in the General Disclosure Package, any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or
court or governmental action, order or decree, otherwise than as set forth or contemplated in the General Disclosure Package; and, since such date, there has not been any change in the capital stock or long-term debt of the Company or any of its
subsidiaries or any material adverse changes, or any development involving a prospective material adverse change, in or affecting the business, assets, general affairs, management, financial position, prospects, stockholders’ equity or results
of operations of the Company and its subsidiaries taken as a whole, otherwise than as set forth or contemplated in the General Disclosure Package. 
 (v) There are no legal or governmental actions, suits, claims or proceedings pending or, to the Company’s knowledge, threatened or contemplated to which the Company or any of its subsidiaries is or
would be a party or of which any of their respective properties is or would be subject at law or in equity, before or by any federal, state, local or foreign governmental or regulatory commission, board, body, authority or agency, or before or by
any self-regulatory organization or other non-governmental regulatory authority which are required to be described in the Registration Statement, the General Disclosure Package or the Prospectus or a document incorporated by reference therein and
are not so described therein, or which, singly or in the aggregate, if resolved adversely to the Company or such subsidiary, would reasonably be likely to result in a Material Adverse Effect or prevent or materially and adversely affect the ability
of the Company to consummate the transactions contemplated hereby. To the Company’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by other third parties. 

  
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 (w) Neither the Company nor any of its subsidiaries is in (i) violation
of its charter or by-laws (or analogous governing instrument, as applicable), (ii) default in any respect, and no event has occurred which, with notice or lapse of time or both, would constitute such a default, in the due performance or
observance of any term, covenant, obligation, agreement or condition contained in any indenture, mortgage, deed of trust, bank loan or credit agreement, other evidence of indebtedness, or any license, lease, contract or other agreement or instrument
to which it is a party or by which the Company or its subsidiaries are is bound or to which any of its property or assets is subject or (iii) violation in any respect of any statute, law, ordinance, governmental rule, regulation, ordinance, or
court order, decree or judgment to which it or its property or assets may be subject except, in the case of clauses (ii) and (iii) of this paragraph (s), for any violations or defaults which would not, singly or in the aggregate, have a
Material Adverse Effect. 
 (x) The Company and each of its subsidiaries have made all material filings,
applications and submissions required by, and owns or possess all material approvals, licenses, certificates, certifications, clearances, consents, exemptions, marks, notifications, orders, authorizations and permits issued by, and have made all
material declarations and filings with, the appropriate local, state, federal or foreign regulatory agencies or bodies that are necessary or desirable for the ownership of their respective properties or the conduct of their respective businesses as
described in the General Disclosure Package and the Prospectus (collectively, the “Governmental Permits”) and is in compliance in all material respects with the terms and conditions of all such Governmental Permits, except where any
failures to possess or make the same would not, singly or in the aggregate, have a Material Adverse Effect. All such Governmental Permits are valid and in full force and effect. All such Governmental Permits are free and clear of any restriction or
condition that are in addition to, or materially different from those normally applicable to similar licenses, certificates, authorizations and permits. Neither the Company nor any of its subsidiaries has received any notice of any proceedings
relating to revocation or modification of, any such Permit, which, individually or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would have a Material Adverse Effect. Except as may be required under the Securities
Act and state and foreign Blue Sky laws and the rules and regulations of FINRA, no other Governmental Permits are required for the Company or any of its subsidiaries to enter into, deliver and perform this Agreement and to issue and sell the Notes
to be issued and sold by the Company hereunder and to issue the Underlying Common Stock upon conversion of the Notes in accordance with the terms thereof. 

  
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 (y) Neither the Company nor any of its subsidiaries is or, after giving
effect to the offering of the Securities and the application of the proceeds thereof as described in the General Disclosure Package and the Prospectus, will be (i) required to register as an “investment company” as defined in the
Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules and regulations of the Commission thereunder or (ii) a “business development company” (as defined in
Section 2(a)(48) of the Investment Company Act). 
 (z) Neither the Company, its subsidiaries nor, to the
Company’s knowledge, any of the Company’s or its subsidiaries’ officers, directors or affiliates has taken or will take, directly or indirectly, any action designed or intended to stabilize or manipulate the price of any security of
the Company, or which caused or resulted in, or which could in the future reasonably be expected to cause or result in, stabilization or manipulation of the price of any security of the Company. 

(aa) The Company and each of its subsidiaries owns or possesses the right to use all patents, trademarks, trademark
registrations, service marks, service mark registrations, trade names, copyrights, licenses, inventions, software, databases, know-how, Internet domain names, trade secrets and other unpatented and/or unpatentable proprietary or confidential
information, systems or procedures, and other intellectual property (collectively, “Intellectual Property”) necessary to carry on their respective businesses as currently conducted, and as proposed to be conducted and described in
the General Disclosure Package and the Prospectus, and the Company is not aware of any claim to the contrary or any challenge by any other person to the rights of the Company and its subsidiaries with respect to the foregoing except for those that
would not reasonably be expected to have a Material Adverse Effect. The Intellectual Property licenses described in the General Disclosure Package and the Prospectus are valid, binding upon, and enforceable by or against the parties thereto in
accordance with their terms. The Company and each of its subsidiaries has complied in all material respects with, and is not in breach nor has received any asserted or threatened claim of breach of, any Intellectual Property license, and the Company
has no knowledge of any breach or anticipated breach by any other person to any Intellectual Property license. The Company’s and each of its subsidiaries’ businesses as now conducted and as proposed to be conducted do not and will not
infringe or conflict with any valid and enforceable patents, trademarks, service marks, trade names, copyrights, trade secrets, licenses or other Intellectual Property or franchise right of any person. Neither the Company nor any of its subsidiaries
has received notice of any claim against the Company or any of its subsidiaries alleging the infringement by the Company or any of its subsidiaries of any patent, trademark, service mark, trade name, copyright, trade secret, license in or other
intellectual property right or franchise right of any person. The Company and each of its subsidiaries has taken all reasonable steps to protect, maintain and safeguard its rights in all Intellectual Property, including the execution of appropriate
nondisclosure and confidentiality agreements. The consummation of the transactions contemplated by this Agreement will not result in the loss or impairment of or payment of any additional amounts with respect to, nor require the consent of any other
person in respect of, the Company’s or any of its subsidiaries’ right to own, use, or hold for use any of the Intellectual Property as owned, used or held for use in the conduct of the businesses as currently conducted. The Company and
each of its subsidiaries has at all times complied in all material respects with all applicable laws relating to privacy, data protection, and the collection and use of personal information collected, used, or held for use by the Company and any of
its subsidiaries in the conduct of the Company’s and its subsidiaries businesses. No claims have been asserted or threatened against the Company or any of its subsidiaries alleging a violation of any person’s privacy or personal
information or data rights and, to the knowledge of the Company, the consummation of the transactions contemplated hereby will not breach or otherwise cause any violation of any law related to privacy, data protection, or the collection and use of
personal information collected, used, or held for use by the Company or any of its subsidiaries in the conduct of the Company’s or any of its subsidiaries’ businesses. The Company and each of its subsidiaries takes reasonable measures to
ensure that such information is protected against unauthorized access, use, modification, or other misuse. 

  
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 (bb) The Company and each of its subsidiaries have good, valid and
marketable title in fee simple to, or have valid rights to lease or otherwise use, all items of real or personal property which are material to the business of the Company and its subsidiaries taken as a whole, in each case free and clear of all
liens, encumbrances, security interests, claims and defects that do not, singly or in the aggregate, materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company or any
of its subsidiaries; and all of the leases and subleases material to the business of the Company and its subsidiaries, considered as one enterprise, and under which the Company or any of its subsidiaries holds properties described in the General
Disclosure Package and the Prospectus, are in full force and effect, and neither the Company nor any subsidiary has received any notice of any material claim of any sort that has been asserted by anyone adverse to the rights of the Company or any
subsidiary under any of the leases or subleases mentioned above, or affecting or questioning the rights of the Company or such subsidiary to the continued possession of the leased or subleased premises under any such lease or sublease. 

(cc) No labor disturbance or dispute with the employees of the Company or any of the Company’s subsidiaries exists,
or, to the best of the Company’s knowledge, is threatened or imminent, which would reasonably be expected to result in a Material Adverse Effect. The Company is not aware of any existing or imminent labor disturbance by the employees of any of
its or its subsidiaries’ principal suppliers, manufacturers, customers or contractors, that singly or in the aggregate, might be expected to have a Material Adverse Effect. The Company is not aware that any key employee or significant group of
employees of the Company or any of the Company’s subsidiaries plans to terminate employment with the Company or any of the Company’s subsidiaries. Neither the Company nor any of its subsidiaries has engaged in any unfair labor practice;
except for matters which would not, singly or in the aggregate, result in a Material Adverse Effect, (i) there is (A) no unfair labor practice complaint pending or, to the Company’s knowledge, threatened against the Company or any of
its subsidiaries before the National Labor Relations Board, and no grievance or arbitration proceeding arising out of or under collective bargaining agreements is pending or to the Company’s knowledge, threatened, (B) no strike, labor
dispute, slowdown or stoppage pending or, to the Company’s knowledge, threatened against the Company or any of its subsidiaries and (C) no union representation dispute currently existing concerning the employees of the Company or any of
its subsidiaries and (ii) to the Company’s knowledge, no union organizing activities are currently taking place concerning the employees of the Company or any of its subsidiaries. 

  
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 (dd) No “prohibited transaction” (as defined in Section 406
of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”), or Section 4975 of the Internal Revenue Code of 1986, as amended from time to
time (the “Code”)) has occurred or could reasonably be expected to occur with respect to any employee benefit plan of the Company or any of its subsidiaries which could, singly or in the aggregate, have a Material Adverse Effect.
Each employee benefit plan of the Company or any of its subsidiaries is in compliance in all material respects with applicable law, including ERISA and the Code. For purposes of this section, an “employee benefit plan” and an
“employee pension benefit plan” are as defined in ERISA section 3(2), and an employee welfare benefit plan as defined in ERISA section 3(1). The Company and its subsidiaries have not incurred and could not reasonably be expected to incur
liability under Title IV of ERISA with respect to the termination of, or withdrawal from, any pension plan (as defined in ERISA). Each pension plan for which the Company or any of its subsidiaries would have any liability that is intended to be
qualified under Section 401(a) of the Code is so qualified, and, to the knowledge of the Company, nothing has occurred, whether by action or by failure to act, which could, singly or in the aggregate, cause the loss of such qualification.

 (ee) The Company and its subsidiaries are and have been in compliance with all foreign, federal, state and
local statute, law (including the common law), ordinance, rule, regulation, order, judgment, decree or Governmental Permit, relating to the use, treatment, storage and disposal of hazardous or toxic substances, materials or wastes or the protection
of health and safety or the environment which are applicable to their businesses (“Environmental Laws”), except where the failure to comply would not, singly or in the aggregate, have a Material Adverse Effect. There has been no
storage, generation, transportation, handling, treatment, disposal, discharge, emission, or other release of any kind of hazardous or toxic substances, materials or wastes by, due to, or caused by the Company or any of its subsidiaries (or, to the
Company’s knowledge, any other entity for whose acts or omissions the Company or any of its subsidiaries is or may otherwise be liable) upon any of the property now or previously owned, leased or operated by the Company or any of its
subsidiaries, or upon any other property, in violation of, or which would give rise to any liability under, any Environmental Law, except for any violation or liability which would not have, singly or in the aggregate with all such violations and
liabilities, a Material Adverse Effect; and there has been no disposal, discharge, emission or other release of any kind onto such property or into the environment surrounding such property of any hazardous or toxic substances, materials or wastes
with respect to which the Company has knowledge, except for any such disposal, discharge, emission, or other release of any kind which would not have, singly or in the aggregate with all such discharges and other releases, a Material Adverse Effect.
In the ordinary course of business, the Company and its subsidiaries conduct reviews of the effect of Environmental Laws on their businesses and assets, as part of which they identify and evaluate associated costs and liabilities (including, without
limitation, any capital or operating expenditures required for clean-up, closure of properties or compliance with Environmental Laws and Governmental Permits issued thereunder, any related constraints on operating activities and any potential
liabilities to third parties). On the basis of such reviews, the Company and its subsidiaries have reasonably concluded that such associated costs and liabilities would not have, singly or in the aggregate, a Material Adverse Effect. 

  
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 (ff) The Company and its subsidiaries are in compliance in all respects with
all applicable provisions of the Occupational Safety and Health Act of 1970, as amended, including all applicable regulations thereunder, except for such noncompliance as would not, singly or in the aggregate, have a Material Adverse Effect.

 (gg) The Company and its subsidiaries, each (i) has timely filed all necessary federal, state, local and
foreign tax returns (or timely filed applicable extensions therefor) that have been required to be filed, and all such returns were true, complete and correct, (ii) has paid all federal, state, local and foreign taxes, assessments, governmental
or other charges that are due and payable for which it is liable, including, without limitation, all sales and use taxes and all taxes which the Company or any of its subsidiaries is obligated to withhold from amounts owing to employees, creditors
and third parties, and (iii) does not have any tax deficiency or claims outstanding or assessed or, to the best of its knowledge, proposed against any of them, except those, in each of the cases described in clauses (i), (ii) and
(iii) of this paragraph (cc), that would not, singly or in the aggregate, have a Material Adverse Effect. The Company and its subsidiaries, each has not engaged in any transaction which is a corporate tax shelter or which could be
characterized as such by the Internal Revenue Service or any other taxing authority. The accruals and reserves on the books and records of the Company and its subsidiaries in respect of tax liabilities for any taxable period not yet finally
determined are adequate to meet any assessments and related liabilities for any such period, and since October 31, 2012 the Company and its subsidiaries each has not incurred any liability for taxes other than in the ordinary course.

 (hh) The Company and each of its subsidiaries maintain or is covered by insurance provided by recognized,
financially sound and reputable institutions with insurance policies in such amounts and covering such risks as is adequate for the conduct of its business and the value of its properties and as is customary for companies engaged in similar
businesses in similar industries. All such insurance is fully in force on the date hereof and will be fully in force as of the Closing Date. The Company has no reason to believe that it and its subsidiaries will not be able to renew their existing
insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect. Neither the Company nor any of its
subsidiaries has been denied any material insurance policy or coverage for which it has applied. Neither the Company nor any of its subsidiaries insures risk of loss through any captive insurance, risk retention group, reciprocal group or by means
of any fund or pool of assets specifically set aside for contingent liabilities other than as described in the General Disclosure Package. 

  
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 (ii) The Company and its subsidiaries each maintains a system of internal
accounting and other controls sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit
preparation of financial statements in conformity with GAAP and to maintain accountability for assets; 
 (iii)
access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken
with respect to any differences. Except as described in the General Disclosure Package, since the end of the Company’s most recent audited fiscal year, there has been (A) no material weakness in the Company’s internal control over
financial reporting (whether or not remediated) and (B) no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control
over financial reporting. 
 (jj) The Company has established, maintains and evaluates “disclosure controls
and procedures” (as such term is defined in Rule 13a-15(e) and 15d-15(e) under the Exchange Act), which (i) are designed to ensure that material information relating to the Company and its subsidiaries is made known to the
Company’s principal executive officer and its principal financial officer by others within those entities, particularly during the periods in which the periodic reports required under the Exchange Act are being prepared, (ii) have been
evaluated for effectiveness as of the end of the last fiscal period covered by the Registration Statement; and (iii) such disclosure controls and procedures are effective to perform the functions for which they were established. There are no
significant deficiencies or material weaknesses in the design or operation of internal controls which could adversely affect the Company’s ability to record, process, summarize, or report financial data to management and the Board of Directors
of the Company. The Company is not aware of any fraud, whether or not material, that involves management or other employees who have a role in the Company’s internal controls; and since the date of the most recent evaluation of such disclosure
controls and procedures, there have been no significant changes in internal controls or in other factors that could significantly affect internal controls, including any corrective actions with regard to significant deficiencies and material
weaknesses. Except as set forth in the General Disclosure Package, the Audit Committee of the Board of Directors of the Company (the “Audit Committee”) is not reviewing or investigating, and neither the Company’s independent
auditors nor its internal auditors have recommended that the Audit Committee review or investigate, (iv) adding to, deleting, changing the application of or changing the Company’s disclosure with respect to, any of the Company’s
material accounting policies, (v) any manner which could result in a restatement of the Company’s financial statements for any annual or interim period during the current or prior three fiscal years, or (iii) a significant deficiency,
material weakness, change in internal control over financial reporting or fraud involving management or other employees who have a significant role in the internal control over financial reporting. 

  
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 (kk) Except as described in the General Disclosure Package and the
Prospectus, there are no material off-balance sheet transactions (including, without limitation, transactions related to, and the existence of, “variable interest entities” within the meaning of Financial Accounting Standards Board
Interpretation No. 46), arrangements, obligations (including contingent obligations), or any other relationships with unconsolidated entities or other persons, that may have a material current or future effect on the Company’s financial
condition, changes in financial condition, results of operations, liquidity, capital expenditures, capital resources, or significant components of revenues or expenses. 

(ll) The Company’s Board of Directors has validly appointed an audit committee whose composition satisfies the
requirements of Rule 4350(d)(2) of the Rules of NASDAQ and Section 10A-3 of the Exchange Act and the Board of Directors and/or the audit committee has adopted a charter that satisfies the requirements of Rule 4350(d)(1) of the Rules of NASDAQ
and Section 10A-3 of the Exchange Act. The audit committee has reviewed the adequacy of its charter within the past twelve months. Neither the Board of Directors nor the audit committee has been informed, nor is any director of the Company
aware, of (i) any significant deficiencies in the design or operation of the Company’s internal controls that could adversely affect the Company’s ability to record, process, summarize and report financial data or any material
weakness in the Company’s internal controls; or (ii) any fraud, whether or not material, that involves management or other employees of the Company who have a significant role in the Company’s internal controls. 

(mm) The minute books of the Company and each of its subsidiaries that would be a “significant subsidiary”
within the meaning of Rule 1-02(w) of Regulation S-X under the Exchange Act (such a significant subsidiary of the Company, a “Significant Subsidiary”) have been made available to the Underwriters and counsel for the Underwriters,
and such books (i) contain a complete summary of all meetings and actions of the board of directors (including each board committee) and stockholders of the Company (or analogous governing bodies and interest holders, as applicable), and each
of its Significant Subsidiaries since the time of its respective incorporation or organization through the date of the latest meeting and action, and (ii) accurately in all material respects reflect all transactions referred to in such minutes.

 (nn) There is no franchise, lease, contract, agreement or document required by the Securities Act or by the
Rules and Regulations to be described in the General Disclosure Package and in the Prospectus or a document incorporated by reference therein or to be filed as an exhibit to the Registration Statement or a document incorporated by reference therein
which is not described or filed therein as required; and all descriptions of any such franchises, leases, contracts, agreements or documents contained in the Registration Statement or in a document incorporated by reference therein are accurate and
complete descriptions of such documents in all material respects. Other than as described in the General Disclosure Package, no such franchise, lease, contract or agreement has been suspended or terminated for convenience or default by the Company
or any of its subsidiaries or any of the other parties thereto, and neither the Company nor any of its subsidiaries has received notice nor does the Company have any other knowledge of any such pending or threatened suspension or termination, except
for such pending or threatened suspensions or terminations that would not, singly or in the aggregate, reasonably be expected to have a Material Adverse Effect. 

  
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 (oo) No relationship, direct or indirect, exists between or among the
Company and any of its subsidiaries on the one hand, and the directors, officers, stockholders (or analogous interest holders), customers or suppliers of the Company or any of its subsidiaries or any of their affiliates on the other hand, which is
required to be described in the General Disclosure Package and the Prospectus or a document incorporated by reference therein and which is not so described. 
 (pp) No person or entity has the right to require registration of shares of Common Stock or other securities of the Company or any of its subsidiaries because of the filing or effectiveness of the
Registration Statement or otherwise, except for persons and entities who have expressly waived such right in writing or who have been given timely and proper written notice and have failed to exercise such right within the time or times required
under the terms and conditions of such right. There are no contracts, agreements or understandings between the Company or any of its subsidiaries and any person granting such person the right (other than (i) registration rights granted to POSCO
under the Posco Securities Purchase Agreement, which have been satisfied to date, and (ii) rights which have been waived in writing in connection with the transactions contemplated by this Agreement or otherwise satisfied) to require the
Company or any of its subsidiaries to register any securities with the Commission. 
 (qq) Neither the Company
nor any of its subsidiaries owns any “margin securities” as that term is defined in Regulation U of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”), and none of the proceeds of the sale
of any of the Securities will be used, directly or indirectly, for the purpose of purchasing or carrying any margin security, for the purpose of reducing or retiring any indebtedness which was originally incurred to purchase or carry any margin
security or for any other purpose which might cause any of the Securities to be considered a “purpose credit” within the meanings of Regulation T, U or X of the Federal Reserve Board. 

(rr) At the Applicable Time there were, and as of the Closing Date there will be, no securities of or guaranteed by the
Company that are rated by a “nationally recognized statistical rating organization,” as that term is defined in Rule 436(g)(2) promulgated under the Act. 

(ss) Neither the Company nor any of its subsidiaries is a party to any contract, agreement or understanding with any
person (other than this Agreement) that would give rise to a valid claim against the Company or the Underwriters for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of any of the Notes or any
transaction contemplated by this Agreement, the Registration Statement, the General Disclosure Package or the Prospectus. 

  
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 (tt) No forward-looking statement (within the meaning of Section 27A of
the Securities Act and Section 21E of the Exchange Act) contained in either the General Disclosure Package or the Prospectus has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith. 

(uu) The Company is subject to and in compliance in all material respects with the reporting requirements of
Section 13 or Section 15(d) of the Exchange Act. The Common Stock is registered pursuant to Section 12(b) or 12(g) of the Exchange Act and is listed on the NASDAQ GM, and the Company has taken no action designed to, or reasonably
likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act or delisting the Common Stock from the NASDAQ GM, nor has the Company received any notification that the Commission, FINRA or the NASDAQ Stock
Market LLC is currently contemplating terminating such registration or listing. The Company has complied in all material respects with the applicable requirements of the NASDAQ GM for maintenance of inclusion of the Common Stock thereon. No consent,
approval, authorization or order of, or filing, notification or registration with, the NASDAQ GM is required for the listing and trading of the Underlying Common Stock on the NASDAQ GM, except for (i) a Notification Form: Listing of Additional
Shares; and (ii) a Notification Form: Change in the Number of Shares Outstanding. 
 (vv) The Company has
filed in a timely manner all reports required to be filed pursuant to Sections 13(a), 13(e), 14 and 15(d) of the Exchange Act during the preceding 12 months (except to the extent that Section 15(d) requires reports to be filed pursuant to
Sections 13(d) and 13(g) of the Exchange Act, which shall be governed by the next clause of this sentence); and the Company has filed in a timely manner all reports required to be filed pursuant to Sections 13(d) and 13(g) of the Exchange Act since
January 1, 2004, except where the failure to timely file would not reasonably be expected singly or in the aggregate to have a Material Adverse Effect. 
 (ww) The Company, and to its knowledge, each of the Company’s directors or officers, in their capacities as such, is, and after giving effect to the Offering will be, in compliance in all material
respects with all applicable effective provisions of the Sarbanes-Oxley Act of 2002 and any related rules and regulations promulgated by the Commission thereunder (the “Sarbanes-Oxley Act”). Each of the principal executive officer
and the principal financial officer of the Company (and each former principal executive officer of the Company and each former principal financial officer of the Company as applicable) has made all certifications required by Sections 302 and 906 of
the Sarbanes-Oxley Act with respect to all reports, schedules, forms, statements and other documents required to be filed by him or her with the Commission. For purposes of the preceding sentence, “principal executive officer” and
“principal financial officer” shall have the meanings given to such terms in the Sarbanes-Oxley Act. 

  
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 (xx) The Company is, and after giving effect to the Offering will be, in
compliance with all applicable corporate governance requirements set forth in the NASDAQ Marketplace Rules. 

(yy) Neither the Company nor any of its subsidiaries nor, to the Company’s knowledge, any other person associated
with or acting on behalf of the Company, including without limitation any director, officer, agent or employee of the Company or any of its subsidiaries has, directly or indirectly, while acting on behalf of the Company or any of its subsidiaries
(i) used any corporate funds for unlawful contributions, gifts, entertainment or other unlawful expenses relating to political activity or failed to disclose fully any contribution in violation of law, (ii) made any payment to any federal
or state governmental officer or official, or other person charged with similar public or quasi-public duties, other than payments required or permitted by the laws of the United States or any jurisdiction thereof, (iii) violated or is in
violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as amended or (iv) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment. 

(zz) Any statistical, industry-related or market-related data included or incorporated by reference in the Registration
Statement, the Prospectus or the General Disclosure Package, are based on or derived from sources that the Company reasonably and in good faith believes to be reliable and accurate, and such data agree with the sources from which they are derived.

 (aaa) Neither the Company nor any subsidiary nor any of their affiliates (within the meaning of FINRA’s
Conduct Rule 5121(f)(1)) directly or indirectly controls, is controlled by, or is under common control with, or is an associated person (within the meaning of Article I, Section 1(ee) of the By-laws of FINRA) of, any member firm of FINRA.

 (bbb) The operations of the Company and its subsidiaries are and have been conducted at all times in
compliance in all material respects with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the USA PATRIOT Act, applicable money laundering statutes of all
jurisdictions and the applicable rules, related rules and regulations thereunder (collectively, the “Money Laundering Laws”), and no action, suit or proceeding by or before any court or governmental agency, authority or body or any
arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending, or to the best knowledge of the Company, threatened against the Company or any of its subsidiaries. 

(ccc) Neither the Company nor any of its subsidiaries nor, to the Company’s knowledge, any director, officer, agent,
employee or affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Treasury Department (“OFAC”); and the Company will not
directly or indirectly use the proceeds of the offering, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, which, to the Company’s knowledge, will use such proceeds
for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC. 

  
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 (ddd) No approval of the shareholders of the Company under the rules and
regulations of Nasdaq (including Rule 5635 of the Nasdaq Global Marketplace Rules) is required for the Company to issue and deliver to the Underwriters the Notes. Any certificate signed by or on behalf of the Company and delivered to the
Underwriters or to counsel for the Underwriters shall be deemed to be a representation and warranty by the Company to the Underwriters as to the matters covered thereby. 

(eee) Neither the Company nor its subsidiaries are subject to regulation as a “public utility”, “public
service company”, “holding company” or similar designation by any governmental or regulatory authority, including under the Federal Power Act, as amended or any applicable state utility laws; and the Company and its subsidiaries are
not required to file with any applicable state or local commissions, governmental authorities or regulatory bodies that regulate utilities any forms, statements, reports, registrations or documents required to be filed by the Company or its
subsidiaries under such applicable state or local laws to which the Company or its subsidiaries are subject. 

Any certificate signed by or on behalf of the Company and delivered to the Representative or to counsel for the
Underwriters shall be deemed to be a representation and warranty by the Company to the Underwriters as to the matters covered thereby. 
 4. FURTHER AGREEMENTS OF THE COMPANY. The Company agrees with the Underwriters: 

(a) Subject to the Rules and Regulations, to prepare the Rule 462(b) Registration Statement, if
necessary, in a form approved by the Representative and file such Rule 462(b) Registration Statement with the Commission on the date hereof; to prepare the Prospectus in a form approved by the Representative containing information previously omitted
at the time of effectiveness of the Registration Statement in reliance on Rules 430A, 430B and 430C of the Rules and Regulations and to file such Prospectus pursuant to Rule 424(b) of the Rules and Regulations not later than the second (2nd) business day following the execution and delivery of this
Agreement or, if applicable, such earlier time as may be required by Rule 430A of the Rules and Regulations; to notify the Representative immediately of the Company’s intention to file or prepare any supplement or amendment to the Registration
Statement or to the Prospectus in connection with this Offering and to make no amendment or supplement to the Registration Statement, the General Disclosure Package or to the Prospectus to which the Representative shall reasonably object by notice
to the Company after a reasonable period to review; to advise the Representative, promptly after it receives notice thereof, of the time when any amendment to the Registration Statement has been filed or becomes effective or any supplement to the
General Disclosure Package or the Prospectus or any amended Prospectus has been filed and to furnish the Representative copies thereof; to file promptly all material required to be filed by the Company with the Commission pursuant to Rule 433(d) or
163(b)(2), as the case may be, of the Rules and Regulations; to file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14 or 15(d) of
the Exchange Act subsequent to the date of the Prospectus and for so long as the delivery of a prospectus (or in lieu thereof, the notice referred to in Rule 173(a) of the Rules and Regulations) is required or sale of the Notes; to advise the
Representative, promptly after it receives notice thereof, of the issuance by the Commission of any stop order or of any order preventing or suspending the use of any Preliminary Prospectus, any Issuer Free Writing Prospectus or the Prospectus, of
the suspension of the qualification of the Securities for offering or sale in any jurisdiction, of the initiation or threatening of any proceeding for any such purpose, or of any request by the Commission for the amending or supplementing of the
Registration Statement, the General Disclosure Package or the Prospectus or for additional information; and, in the event of the issuance of any stop order or of any order preventing or suspending the use of any Preliminary Prospectus, any Issuer
Free Writing Prospectus or the Prospectus or suspending any such qualification, and promptly to use its best efforts to obtain the withdrawal of such order. 

  
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 (b) The Company represents and agrees that, it has not made, and unless it
obtains the prior consent of the Representative, it will not, make any offer relating to the Securities that would constitute a “free writing prospectus” as defined in Rule 405 of the Rules and Regulations (each, a “Permitted Free
Writing Prospectus”); provided that the prior written consent of the Representative hereto shall be deemed to have been given in respect of the Issuer Free Writing Prospectus(es) included in Schedule A hereto. The Company
represents that it has treated and agrees that it will treat each Permitted Free Writing Prospectus as an Issuer Free Writing Prospectus, comply with the requirements of Rules 164 and 433 of the Rules and Regulations applicable to any Issuer Free
Writing Prospectus, including the requirements relating to timely filing with the Commission, legending and record keeping and will not take any action that would result in the Underwriters or the Company being required to file with the Commission
pursuant to Rule 433(d) of the Rules and Regulations a free writing prospectus prepared by or on behalf of such Underwriter that such Underwriter otherwise would not have been required to file thereunder. 

(c) If at any time when a Prospectus relating to the Notes or the Underlying Common Stock is required to be delivered
under the Securities Act, any event occurs or condition exists as a result of which the Prospectus, as then amended or supplemented, would include any untrue statement of a material fact or omit to state a material fact necessary in order to make
the statements therein, in light of the circumstances under which they were made, not misleading, or the Registration Statement, as then amended or supplemented, would include any untrue statement of a material fact or omit to state a material fact
necessary to make the statements therein not misleading, or if for any other reason it is necessary at any time to amend or supplement any Registration Statement or the Prospectus to comply with the Securities Act or the Exchange Act, the Company
will promptly notify the Representative, and upon the Representative’s request, the Company will promptly prepare and file with the Commission, at the Company’s expense, an amendment to the Registration Statement or an amendment or
supplement to the Prospectus that corrects such statement or omission or effects such compliance and will deliver to the Underwriters, without charge, such number of copies thereof as the Underwriters may reasonably request. The Company consents to
the use of the Prospectus or any amendment or supplement thereto by the Underwriters. 

  
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 (d) If the General Disclosure Package is being used to solicit offers to buy
the Notes or the Underlying Common Stock at a time when the Prospectus is not yet available to prospective purchasers and any event shall occur as a result of which, in the judgment of the Company or in the reasonable opinion of the Representative,
it becomes necessary to amend or supplement the General Disclosure Package in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, or to make the statements therein not conflict with the
information contained or incorporated by reference in the Registration Statement then on file and not superseded or modified, or if it is necessary at any time to amend or supplement the General Disclosure Package to comply with any law, the Company
promptly will either (i) prepare, file with the Commission (if required) and furnish to the Underwriters and any dealers an appropriate amendment or supplement to the General Disclosure Package or (ii) prepare and file with the Commission
an appropriate filing under the Exchange Act which shall be incorporated by reference in the General Disclosure Package so that the General Disclosure Package as so amended or supplemented will not, in the light of the circumstances under which they
were made, be misleading or conflict with the Registration Statement then on file, or so that the General Disclosure Package will comply with law. 
 (e) If at any time following issuance of an Issuer Free Writing Prospectus there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or will
conflict with the information contained in the Registration Statement, Pricing Prospectus or Prospectus, including any document incorporated by reference therein and any prospectus supplement deemed to be a part thereof and not superseded or
modified or included or would include an untrue statement of a material fact or omitted or would omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances
under which they were made, not misleading, the Company has promptly notified or will promptly notify the Representative so that any use of the Issuer Free Writing Prospectus may cease until it is amended or supplemented and has promptly amended or
will promptly amend or supplement, at its own expense, such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission. The foregoing sentence does not apply to statements in or omissions from any Issuer Free
Writing Prospectus in reliance upon, and in conformity with, written information furnished to the Company by the Representative by or on behalf of the Underwriters specifically for inclusion therein, which information the parties hereto agree is
limited to the Underwriters’ Information (as defined in Section 16). 
 (f) To the extent not
available on the Commission’s EDGAR system or any successor system, to furnish promptly to the Underwriters and to counsel for the Underwriters a signed copy of the Registration Statement as originally filed with the Commission, and of each
amendment thereto filed with the Commission, including all consents and exhibits filed therewith. 

  
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 (g) To the extent not available on the Commission’s EDGAR system or any
successor system, to deliver promptly to the Representative in New York City such number of the following documents as the Representative shall reasonably request: (i) conformed copies of the Registration Statement as originally filed with the
Commission (in each case excluding exhibits), (ii) each Preliminary Prospectus (if any), (iii) any Issuer Free Writing Prospectus, (iv) the Prospectus (the delivery of the documents referred to in clauses (i), (ii), (iii) and
(iv) of this paragraph (g) to be made not later than 10:00 A.M., New York time, on the business day following the execution and delivery of this Agreement), (v) conformed copies of any amendment to the Registration Statement
(excluding exhibits), (vi) any amendment or supplement to the General Disclosure Package or the Prospectus (the delivery of the documents referred to in clauses (v) and (vi) of this paragraph (g) to be made not later than
10:00 A.M., New York City time, on the business day following the date of such amendment or supplement) and (vii) any document incorporated by reference in the General Disclosure Package or the Prospectus (excluding exhibits thereto) (the
delivery of the documents referred to in clause (vi) of this paragraph (g) to be made not later than 10:00 A.M., New York City time, on the business day following the date of such document). 

(h) To make generally available to its stockholders as soon as practicable, but in any event not later than eighteen
(18) months after the effective date of each Registration Statement (as defined in Rule 158(c) of the Rules and Regulations), an earnings statement of the Company and its subsidiaries (which need not be audited) complying with
Section 11(a) of the Securities Act and the Rules and Regulations (including, at the option of the Company, Rule 158); and, if not available on the Commission’s EDGAR System or any successor system, to furnish to its stockholders after the
end of each fiscal year an annual report (including a balance sheet and statements of income, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries certified by independent public accountants) and after each of
the first three fiscal quarters of each fiscal year (beginning with the first fiscal quarter after the effective date of such Registration Statement), consolidated summary financial information of the Company and its subsidiaries for such quarter in
reasonable detail. 
 (i) To take promptly from time to time such actions as the Representative may reasonably
request to qualify the Notes or Underlying Common Stock for offering and sale under the securities or blue sky laws of such jurisdictions (domestic or foreign) as the Representative may designate and to continue such qualifications in effect, and to
comply with such laws, for so long as required to permit the offer and sale of the Notes and the Underlying Common Stock in such jurisdictions; provided that the Company and its subsidiaries shall not be obligated to qualify as foreign
corporations in any jurisdiction in which they are not so qualified or to file a general consent to service of process in any jurisdiction. 

  
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 (j) During the period of five (5) years from the date hereof, to the
extent not available on the Commission’s EDGAR system or any successor system, to deliver to the Underwriters, (i) upon request, copies of all reports or other communications furnished generally to stockholders, and (ii) upon request,
copies of any reports and financial statements furnished or filed with the Commission or any national securities exchange or automatic quotation system on which the Common Stock is listed or quoted. 

(k) That the Company will not, for a period of ninety (90) days from the date of the Prospectus, (the
“Lock-Up Period”) without the prior written consent of LCM, directly or indirectly offer, sell, assign, transfer, pledge, contract to sell, or otherwise dispose of, any shares of Common Stock or any securities convertible into or
exercisable or exchangeable for Common Stock, other than (i) the Company’s sale of the Notes hereunder (ii) the issuance of restricted Common Stock or options to acquire Common Stock pursuant to the Company’s employee benefit
plans, qualified stock option plans or other employee compensation plans as such plans are in existence on the date hereof and described in the Prospectus and the issuance of Common Stock pursuant to the valid exercises of options, warrants or
rights outstanding on the date hereof, (iii) shares issued for the sole purpose of funding any cash dividends payable in respect of the Series B Preferred Shares and the Series 1 Preferred Shares during the Lock-Up Period, (iv) shares
issued to Enbridge, Inc. (or its affiliates) or shares issued to fund any cash payments to Enbridge, Inc. (or its affiliates), in each case for the sole purpose of paying or settling any obligation in respect of the Series 1 Preferred Shares that is
payable during the Lock-Up Period, (v) pursuant to warrants to purchase common stock that are outstanding on the date hereof and which have been publicly disclosed and (vi) the issuance of warrants to purchase Common Stock issued to
unaffiliated strategic partners on an arm’s length basis in connection with a transaction approved by the board of directors of the Company; provided, however, that such issuance of warrants pursuant to this Section 4(k)(vi)
shall not exceed 5% (on an as exercised basis) of the outstanding shares of Common Stock of the Company as of the date of this Agreement. The Company will cause each executive officer and director listed in Schedule B to furnish to the
Underwriters, prior to the Closing Date, a letter, substantially in the form of Exhibit B hereto. The Company also agrees that during such period (other than for the sale of the Notes hereunder), the Company will not file any registration
statement, preliminary prospectus or prospectus, or any amendment or supplement thereto, under the Securities Act for any such transaction or which registers, or offers for sale, Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock, except for a registration statement on Form S-8 relating to employee benefit plans. The Company hereby agrees that (i) if it issues an earnings release or material news, or if a material event relating to the
Company occurs, during the last seventeen (17) days of the Lock-Up Period, (ii) if prior to the expiration of the Lock-Up Period, the Company announces that it will release earnings results during the sixteen (16)-day period beginning on
the last day of the Lock-Up Period, the restrictions imposed by this paragraph (k) or the letter shall continue to apply until the expiration of the eighteen (18)-day period beginning on the issuance of the earnings release or the
occurrence of the material news or material event; provided, however that such extension will not apply if, (i) within three business days prior to the 15th calendar day before the last day of the Lock-Up Period, the Company delivers a
certificate, signed by the Chief Financial Officer or Chief Executive Officer of the Company, certifying on behalf of the Company that (A) the Notes are “actively traded securities” (as defined in Regulation M), (B) the Company
meets the applicable requirements of paragraph (a)(1) of Rule 139 under the Securities Act in the manner contemplated by FINRA’s NASD Conduct Rule 2711(f)(4), and (C) the provisions of FINRA Conduct Rule 2711(f)(4) are not applicable to
any research reports relating to the Company published or distributed by any of the Underwriters during the 15 days before or after the last day of the Lock-Up Period (before giving effect to such extension); or (D) FINRA Rule 2711 is amended
to permit any of the Underwriters to publish or otherwise distribute research reports during the 15 days before or after the last day of the Lock-Up Period (before giving effect to such extension). The Company will provide the Underwriters with
prior notice of any such announcement that gives rise to an extension of the Lock-Up Period. 

  
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 (l) To supply the Representative with copies of all correspondence to and
from, and all documents issued to and by, the Commission in connection with the registration of the Securities under the Securities Act or the Registration Statement, any Preliminary Prospectus or the Prospectus, or any amendment or supplement
thereto or document incorporated by reference therein. 
 (m) The Company will reserve and keep available at all
times, free of pre-emptive or other similar rights, a sufficient number of shares of Common Stock, for the purposes of enabling the Company to satisfy any obligations to issue Underlying Common Stock upon conversion of the Notes. 

(n) Prior to the Closing Date to furnish to the Representative, as soon as they have been prepared, copies of any
unaudited interim consolidated financial statements of the Company for any periods subsequent to the periods covered by the financial statements appearing in the Registration Statement and the Prospectus. 

(o) Prior to the Closing Date not to issue any press release or other communication directly or indirectly or hold any
press conference with respect to the Company, its condition, financial or otherwise, or earnings, business affairs or business prospects (except for routine oral marketing communications in the ordinary course of business and consistent with the
past practices of the Company and of which the Representative is notified), without the prior written consent of the Representative, unless in the judgment of the Company and its counsel, and after notification to the Representative, such press
release or communication is required by law or applicable stock exchange rules. 
 (p) Until the Representative
shall have notified the Company of the completion of the offering of the Notes, that the Company will not, and will cause its affiliated purchasers (as defined in Regulation M under the Exchange Act) not to, either alone or with one or more other
persons, bid for or purchase, for any account in which it or any of its affiliated purchasers has a beneficial interest, any shares of Common Stock or Notes, or attempt to induce any person to purchase any shares of Common Stock or Notes; and not
to, and to cause its affiliated purchasers not to, make bids or purchases for the purpose of creating actual, or apparent, active trading in or of raising the price of the Common Stock or Notes. 

  
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 (q) Not to take any action prior to the Closing Date, which would require
the Prospectus to be amended or supplemented pursuant to Section 4. 
 (r) To at all times comply
with all applicable provisions of the Sarbanes-Oxley Act in effect from time to time. 
 (s) To apply the net
proceeds from the sale of the Notes as set forth in the Registration Statement, the General Disclosure Package and the Prospectus under the heading “Use of Proceeds.” 

(t) To use its commercially reasonable best efforts to list, subject to notice of issuance, effect and maintain the
quotation and listing of the Common Stock on the NASDAQ GM. 
 (u) To use its commercially reasonable best
efforts to assist the Representative with any filings with FINRA and obtaining clearance from FINRA as to the amount of compensation allowable or payable to the Underwriters. 

(v) To use its commercially reasonable best efforts to do and perform all things required to be done or performed under
this Agreement by the Company prior to the Closing Date, and to satisfy all conditions precedent to the delivery of the Notes. 

5. PAYMENT OF EXPENSES. The Company agrees to pay, or reimburse if paid by the Underwriters,
upon consummation of the transactions contemplated hereby: (a) the costs incident to the authorization, issuance, sale, preparation and delivery of the Notes to the Underwriters and any taxes payable in that connection; (b) the costs
incident to the registration of the Notes under the Securities Act; (c) the costs incident to the preparation, printing and distribution of the Registration Statement, the Base Prospectus, any Preliminary Prospectus, any Issuer Free Writing
Prospectus, the General Disclosure Package, the Prospectus, any amendments, supplements and exhibits thereto or any document incorporated by reference therein and the costs of printing, reproducing and distributing any transaction document by mail
or other means of communications; (d) the reasonable fees and expenses (including related fees and expenses of counsel for the Underwriters) incurred in connection with securing any required review by FINRA of the terms of the sale of the Notes
and any filings made with FINRA; (e) any applicable listing, quotation or other fees; (f) the reasonable fees and expenses (including related fees and expenses of counsel to the Underwriters) of qualifying the Notes and Underlying Common
Stock under the securities laws of the several jurisdictions as provided in Section 4(i) and of preparing, printing and distributing wrappers, “Blue Sky Memoranda” and “Legal Investment Surveys”; (g) the cost of
preparing and printing stock certificates; (h) all fees and expenses of the Trustee for the Notes and the registrar and transfer agent of the Underlying Common Stock; (i) the reasonable fees, disbursements and expenses of counsel to the
Underwriters; and (j) all other reasonable costs and expenses incident to the offering of the Securities or the performance of the obligations of the Company under this Agreement (including, without limitation, the fees and expenses of the
Company’s counsel and the Company’s independent accountants and the travel and other expenses incurred by Company’s and Underwriters’ personnel in connection with any “road show” including, without limitation, any
expenses advanced by the Underwriters on the Company’s behalf (which will be promptly reimbursed)). 

  
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 6. CONDITIONS TO THE
OBLIGATIONS OF THE UNDERWRITERS, AND THE SALE OF THE NOTES . The respective
obligations of the Underwriters hereunder, and the closing of the sale of the Notes, are subject to the accuracy, when made and as of the Applicable Time and on the Closing Date, of the representations and warranties of the Company contained herein,
to the accuracy of the statements of the Company made in any certificates pursuant to the provisions hereof, to the performance by the Company of its obligations hereunder, and to each of the following additional terms and conditions: 

(a) No stop order suspending the effectiveness of the Registration Statement or any part thereof, preventing or suspending
the use of any Base Prospectus, any Preliminary Prospectus, the Prospectus or any Permitted Free Writing Prospectus or any part thereof shall have been issued and no proceedings for that purpose or pursuant to Section 8A under the Securities
Act shall have been initiated or threatened by the Commission, and all requests for additional information on the part of the Commission (to be included or incorporated by reference in the Registration Statement or the Prospectus or otherwise) shall
have been complied with to the reasonable satisfaction of the Representative; the Rule 462(b) Registration Statement, if any, each Issuer Free Writing Prospectus, if any, and the Prospectus shall have been filed with the Commission within the
applicable time period prescribed for such filing by, and in compliance with, the Rules and Regulations and in accordance with Section 4(a), and the Rule 462(b) Registration Statement, if any, shall have become effective immediately upon
its filing with the Commission; and FINRA shall have raised no objection to the fairness and reasonableness of the terms of this Agreement or the transactions contemplated hereby. 

(b) The Representative shall not have discovered and disclosed to the Company on or prior to the Closing Date that the
Registration Statement or any amendment or supplement thereto contains an untrue statement of a fact which, in the opinion of counsel for the Underwriters, is material or omits to state any fact which, in the opinion of such counsel, is material and
is required to be stated therein or is necessary to make the statements therein not misleading, or that the General Disclosure Package, any Issuer Free Writing Prospectus or the Prospectus or any amendment or supplement thereto contains an untrue
statement of fact which, in the opinion of such counsel, is material or omits to state any fact which, in the opinion of such counsel, is material and is necessary in order to make the statements, in the light of the circumstances in which they were
made, not misleading. 
 (c) All corporate proceedings and other legal matters incident to the authorization,
form and validity of each of this Agreement, the Indenture, the DTC Agreement, the Notes, the Underlying Common Stock, the Registration Statement, the General Disclosure Package, each Issuer Free Writing Prospectus, if any, and the Prospectus and
all other legal matters relating to this Agreement and the transactions contemplated hereby shall be reasonably satisfactory in all material respects to counsel for the Underwriters, and the Company shall have furnished to such counsel all documents
and information that they may reasonably request to enable them to pass upon such matters. 

  
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 (d) Robinson & Cole LLP shall have furnished to the Representative
such counsel’s written opinion and negative assurances statement, as counsel to the Company, addressed to the Underwriters and dated the Closing Date, in form and substance reasonably satisfactory to the Representative. 

(e) The Underwriters shall have received from Proskauer Rose LLP, counsel for the Underwriters, such opinion or opinions
and negative assurances statement, dated the Closing Date, with respect to such matters as the Representative may reasonably require, and the Company shall have furnished to such counsel such documents as they request for enabling them to pass upon
such matters. 
 (f) At the time of the execution of this Agreement, the Representative shall have received from
KPMG LLP a letter, addressed to the Underwriters, executed and dated such date, in form and substance satisfactory to the Representative (A) confirming that they are an independent registered accounting firm with respect to the Company and its
subsidiaries within the meaning of the Securities Act and the Rules and Regulations and PCAOB and (B) stating the conclusions and findings of such firm, of the type ordinarily included in accountants’ “comfort letters” to
underwriters, with respect to the financial statements and certain financial information contained or incorporated by reference in the Registration Statement, the General Disclosure Package and the Prospectus. 

(g) On the effective date of any post-effective amendment to any Registration Statement and on the Closing Date, the
Representative shall have received a letter (the “Bring-Down Letter”) from KPMG LLP addressed to the Underwriters and dated the Closing Date confirming, as of the date of the Bring-Down Letter (or, with respect to matters involving
changes or developments since the respective dates as of which specified financial information is given in the General Disclosure Package and the Prospectus, as the case may be, as of a date not more than three (3) business days prior to the
date of the Bring-Down Letter), the conclusions and findings of such firm, of the type ordinarily included in accountants’ “comfort letters” to underwriters, with respect to the financial information and other matters covered by its
letter delivered to the Representative concurrently with the execution of this Agreement pursuant to paragraph (g) of this Section 6. 

  
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 (h) The Company shall have furnished to the Representative a certificate,
dated the Closing Date, of its Chairman of the Board, Chief Executive Officer or its President and its Chief Financial Officer or a Vice President of Finance, each in his capacity as an officer of the Company, stating that (i) such officers
have carefully examined the Registration Statement, the General Disclosure Package, any Permitted Free Writing Prospectus and the Prospectus and, in their opinion, the Registration Statement and each amendment thereto, at the Applicable Time and as
of the date of this Agreement and as of the Closing Date did not include any untrue statement of a material fact and did not omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, and
the General Disclosure Package, as of the Applicable Time and as of the Closing Date, any Permitted Free Writing Prospectus as of its date and as of the Closing Date, the Prospectus and each amendment or supplement thereto, as of the respective date
thereof and as of the Closing Date, did not include any untrue statement of a material fact and did not omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances in which they were made, not
misleading, (ii) since the effective date of the Registration Statement, no event has occurred which should have been set forth in a supplement or amendment to the Registration Statement, the General Disclosure Package or the Prospectus that
has not been so set forth therein, (iii) to the best of their knowledge after reasonable investigation, as of the Closing Date, the representations and warranties of the Company in this Agreement are true and correct, and the Company has
complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date, and (iv) there has not been, subsequent to the date of the most recent audited financial statements
included or incorporated by reference in the General Disclosure Package, any material adverse change in the financial position or results of operations of the Company and its subsidiaries or any change or development that, singly or in the
aggregate, would involve a material adverse change or a prospective material adverse change, in or affecting the condition (financial or otherwise), results of operations, business, assets or prospects of the Company and its subsidiaries taken as a
whole, except as set forth in the Prospectus. 
 (i) Since the date of the latest audited financial statements
included in the General Disclosure Package or incorporated by reference in the General Disclosure Package as of the date hereof, (i) neither the Company nor any of its subsidiaries shall have sustained any loss or interference with its business
from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than as set forth in the General Disclosure Package, and (ii) there shall
not have been any change in the capital stock (other than a change in the number of outstanding shares of Common Stock due to the issuance of shares upon the exercise of outstanding options or warrants or the conversion of convertible indebtedness)
or short-term or long-term debt of the Company or any of its subsidiaries, or any change, or any development involving a prospective change, in or affecting the business, general affairs, management, financial position, stockholders’ equity or
results of operations of the Company and its subsidiaries otherwise than as set forth in the General Disclosure Package, the effect of which, in any such case described in clause (i) or (ii) of this paragraph (i), is, in the
judgment of the Representative, so material and adverse as to make it impracticable or inadvisable to proceed with the sale or delivery of the Notes on the terms and in the manner contemplated in the General Disclosure Package. 

  
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 (j) No action shall have been taken and no law, statute, rule, regulation or
order shall have been enacted, adopted or issued by any governmental agency or body which would prevent the issuance or sale of the Notes or materially and adversely affect or potentially materially and adversely affect the business or operations of
the Company or its subsidiaries and no injunction, restraining order or order of any other nature by any federal or state court of competent jurisdiction shall have been issued which would prevent the issuance or sale of the Notes or materially and
adversely affect or potentially materially and adversely affect the business or operations of the Company or its subsidiaries. 
 (k) Subsequent to the execution and delivery of this Agreement there shall not have occurred any of the following: (i) trading in securities generally on the New York Stock Exchange or the NASDAQ GM
or in the over-the-counter market, or trading in any securities of the Company on any exchange or in the over-the-counter market, shall have been suspended or materially limited, or minimum or maximum prices or maximum range for prices shall have
been established on any such exchange or such market by the Commission, by such exchange or market or by any other regulatory body or governmental authority having jurisdiction, (ii) a banking moratorium shall have been declared by Federal or
state authorities or a material disruption has occurred in commercial banking or securities settlement or clearance services in the United States, (iii) the United States shall have become engaged in hostilities, or the subject of an act of
terrorism, or there shall have been an outbreak of or escalation in hostilities involving the United States, or there shall have been a declaration of a national emergency or war by the United States or (iv) there shall have occurred such a
material adverse change in general economic, political or financial conditions (or the effect of international conditions on the financial markets in the United States shall be such) as to make it, in the judgment of the Representative,
impracticable or inadvisable to proceed with the sale or delivery of the Notes on the terms and in the manner contemplated in the General Disclosure Package and the Prospectus. 

(l) The Company shall have filed a Notification: Listing of Additional Shares with the NASDAQ GM and shall have received
no objection thereto from the NASDAQ GM. 
 (m) The Underwriters shall have not have received any unresolved
objection from the FINRA as to the fairness and reasonableness of the amount of compensation allowable or payable to the Underwriters in connection with the issuance and sale of the Notes. 

(n) The Representative shall have received the written agreements, substantially in the form of Exhibit B hereto,
of the executive officers and directors of the Company listed in Schedule B to this Agreement. 
 (o) The
Representative shall have received the written waiver from POSCO Power (“POSCO”) relating to its notice and participation rights arising under and pursuant to the terms of that certain Securities Purchase Agreement, dated
April 30, 2012 between POSCO and the Company. 

  
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 (p) Each of the Company and the Trustee shall have executed and delivered
the Indenture and the Indenture shall be in full force and effect. 
 (q) The Company shall have executed and
delivered the Notes, which shall be in full force and effect. 
 (r) The Company shall have entered into the DTC
Agreement and shall have obtained a cusip number for the Notes; and the Company shall have arranged for the Notes to be issued at closing via the Depository Trust Company’s Deposit/Withdrawal At Custodian system. 

(s) Prior to the Closing Date, the Company shall have furnished to the Representative such further information, opinions,
certificates (including a Secretary’s Certificate), letters or such other documents as the Representative shall have reasonably requested. 
 All opinions, letters, evidence and certificates mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in form and substance
reasonably satisfactory to counsel for the Underwriters. 
 7. INDEMNIFICATION AND
CONTRIBUTION. 
 (a) The Company shall indemnify and hold harmless each Underwriter, each of
its affiliates and each of its and their respective directors, officers, members, employees, representatives and agents (including, without limitation Lazard Frères & Co. LLC (which will provide services to LCM) and its affiliates,
and each of its and their respective directors, officers, members, employees, representatives and agents and each person, if any, who controls Lazard Frères & Co. LLC within the meaning of Section 15 of the Securities Act or
Section 20 of the Exchange Act) and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act of or Section 20 of the Exchange Act (collectively, the “Underwriter Indemnified
Parties,” and each a “Underwriter Indemnified Party”) against any loss, claim, damage, expense or liability whatsoever (or any action, investigation or proceeding in respect thereof), joint or several, to which such
Underwriter Indemnified Party may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, expense, liability, action, investigation or proceeding arises out of or is based upon (A) any untrue statement or
alleged untrue statement of a material fact contained in any Preliminary Prospectus, any Issuer Free Writing Prospectus, any “issuer information” filed or required to be filed pursuant to Rule 433(d) of the Rules and Regulations, any
Registration Statement or the Prospectus, or in any amendment or supplement thereto or document incorporated by reference therein, (B) the omission or alleged omission to state in any Preliminary Prospectus, any Issuer Free Writing Prospectus,
any “issuer information” filed or required to be filed pursuant to Rule 433(d) of the Rules and Regulations, any Registration Statement or the Prospectus, or in any amendment or supplement thereto or document incorporated by reference
therein, a material fact required to be stated therein or necessary to make the statements therein not misleading or (C) any breach of the representations and warranties of the Company contained herein, or the failure of the Company to perform
its obligations hereunder, under the Indenture or the Notes or pursuant to any law, and which is included as part of or referred to in any loss, claim, damage, expense, liability, action, investigation or proceeding arising out of or based upon
matters covered by subclause (A), (B) or (C) above of this Section 7(a), and shall reimburse the Underwriter Indemnified Party for any legal fees or other expenses reasonably incurred by that Underwriter Indemnified Party in
connection with investigating, or preparing to defend, or defending against, settling, compromising, or appearing as a third party witness in respect of, or otherwise incurred in connection with, any such loss, claim, damage, expense, liability,
action, investigation or proceeding, as such fees and expenses are incurred; provided, however, that the Company shall not be liable in any such case to the extent that any such loss, claim, damage, expense or liability arises out of or is
based upon an untrue statement or alleged untrue statement in, or omission or alleged omission from any Preliminary Prospectus, any Registration Statement or the Prospectus, or any such amendment or supplement thereto, or any Issuer Free Writing
Prospectus made in reliance upon and in conformity with written information furnished to the Company by the Representative by or on behalf of the Underwriters specifically for use therein, which information the parties hereto agree is limited to the
Underwriters’ Information (as defined in Section 16). This indemnity agreement is not exclusive and will be in addition to any liability which the Company might otherwise have and shall not limit any rights or remedies which may
otherwise be available at law or in equity to each Underwriter Indemnified Party. 

  
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 (b) Each Underwriter, severally and not jointly, shall indemnify and hold
harmless the Company and its directors, its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act
(collectively, the “Company Indemnified Parties,” and each a “Company Indemnified Party”) against any loss, claim, damage, expense or liability whatsoever (or any action, investigation or proceeding in respect
thereof), joint or several, to which such Company Indemnified Party may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, expense, liability, action, investigation or proceeding arises out of or is based
upon (i) any untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, any Issuer Free Writing Prospectus, any “issuer information” filed or required to be filed pursuant to Rule 433(d)
of the Rules and Regulations, any Registration Statement or the Prospectus, or in any amendment or supplement thereto, or (ii) the omission or alleged omission to state in any Preliminary Prospectus, any Issuer Free Writing Prospectus, any
“issuer information” filed or required to be filed pursuant to Rule 433(d) of the Rules and Regulations, any Registration Statement or the Prospectus, or in any amendment or supplement thereto, a material fact required to be stated therein
or necessary to make the statements therein not misleading, but in each case only to the extent that the untrue statement or alleged untrue statement or omission or alleged omission was made in reliance upon and in conformity with written
information furnished to the Company by the Representative by or on behalf of any Underwriter specifically for use therein, which information the parties hereto agree is limited to the Underwriters’ Information as defined in
Section 16, and shall reimburse the Company Indemnified Party for any legal or other expenses reasonably incurred by such party in connection with investigating or preparing to defend or defending against or appearing as third party
witness in connection with any such loss, claim, damage, liability, action, investigation or proceeding, as such fees and expenses are incurred. Notwithstanding the provisions of this Section 7(b), in no event shall any indemnity by any
Underwriter under this Section 7(b) exceed the total discount and commission received by such Underwriter in connection with the Offering. 

  
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 (c) Promptly after receipt by an indemnified party under this
Section 7 of notice of the commencement of any action, the indemnified party shall, if a claim in respect thereof is to be made against an indemnifying party under this Section 7, notify such indemnifying party in writing of
the commencement of that action; provided, however, that the failure to notify the indemnifying party shall not relieve it from any liability which it may have under this Section 7 except to the extent it has been materially
prejudiced by such failure; and, provided, further, that the failure to notify an indemnifying party shall not relieve it from any liability which it may have to an indemnified party otherwise than under this Section 7. If any
such action shall be brought against an indemnified party, and it shall notify the indemnifying party thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it wishes, jointly with any other similarly
notified indemnifying party, to assume the defense of such action with counsel reasonably satisfactory to the indemnified party (which counsel shall not, except with the written consent of the indemnified party, be counsel to the indemnifying
party). After notice from the indemnifying party to the indemnified party of its election to assume the defense of such action, except as provided herein, the indemnifying party shall not be liable to the indemnified party under
Section 7 for any legal or other expenses subsequently incurred by the indemnified party in connection with the defense of such action other than reasonable costs of investigation; provided, however, that any indemnified party
shall have the right to employ separate counsel in any such action and to participate in the defense of such action but the fees and expenses of such counsel (other than reasonable costs of investigation) shall be at the expense of such indemnified
party unless (i) the employment thereof has been specifically authorized in writing by the Company in the case of a claim for indemnification under Section 7(a) or LCM in the case of a claim for indemnification under
Section 7(b), (ii) such indemnified party shall have been advised by its counsel that there may be one or more legal defenses available to it which are different from or additional to those available to the indemnifying party, or
(iii) the indemnifying party has failed to assume the defense of such action and employ counsel reasonably satisfactory to the indemnified party within a reasonable period of time after notice of the commencement of the action or the
indemnifying party does not diligently defend the action after assumption of the defense, in which case, if such indemnified party notifies the indemnifying party in writing that it elects to employ separate counsel at the expense of the
indemnifying party, the 

  
 34 

 
indemnifying party shall not have the right to assume the defense of (or, in the case of a failure to diligently defend the action after assumption of the defense, to continue to defend) such
action on behalf of such indemnified party and the indemnifying party shall be responsible for legal or other expenses subsequently incurred by such indemnified party in connection with the defense of such action; provided, however, that the
indemnifying party shall not, in connection with any one such action or separate but substantially similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, be liable for the reasonable fees
and expenses of more than one separate firm of attorneys at any time for all such indemnified parties (in addition to any local counsel), which firm shall be designated in writing by the Representative if the indemnified parties under this
Section 7 consist of any Underwriter Indemnified Party or by the Company if the indemnified parties under this Section 7 consist of any Company Indemnified Parties. Subject to this Section 7(c), the amount payable
by an indemnifying party under Section 7 shall include, but not be limited to, (x) reasonable legal fees and expenses of counsel to the indemnified party and any other expenses in investigating, or preparing to defend or defending
against, or appearing as a third party witness in respect of, or otherwise incurred in connection with, any action, investigation, proceeding or claim, and (y) all amounts paid in settlement of any of the foregoing. No indemnifying party shall,
without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of judgment with respect to any pending or threatened action or any claim whatsoever, in respect of which indemnification or contribution
could be sought under this Section 7 (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party in
form and substance reasonably satisfactory to such indemnified party from all liability arising out of such action or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of
any indemnified party. Subject to the provisions of the following sentence, no indemnifying party shall be liable for settlement of any pending or threatened action or any claim whatsoever that is effected without its written consent (which consent
shall not be unreasonably withheld or delayed), but if settled with its written consent, if its consent has been unreasonably withheld or delayed or if there be a judgment for the plaintiff in any such matter, the indemnifying party agrees to
indemnify and hold harmless any indemnified party from and against any loss or liability by reason of such settlement or judgment. In addition, if at any time an indemnified party shall have requested that an indemnifying party reimburse the
indemnified party for fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated herein effected without its written consent if (i) such settlement is entered into more
than forty-five (45) days after receipt by such indemnifying party of the request for reimbursement, (ii) such indemnifying party shall have received notice of the terms of such settlement at least thirty (30) days prior to such
settlement being entered into and (iii) such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement. 

  
 35 

 (d) If the indemnification provided for in this Section 7 is
unavailable or insufficient to hold harmless an indemnified party under Section 7(a) or Section 7(b), then each indemnifying party shall, in lieu of indemnifying such indemnified party, contribute to the amount paid, payable
or otherwise incurred by such indemnified party as a result of such loss, claim, damage, expense or liability (or any action, investigation or proceeding in respect thereof), as incurred, (i) in such proportion as shall be appropriate to
reflect the relative benefits received by the Company on the one hand and each of the Underwriters on the other hand from the offering of the Securities, or (ii) if the allocation provided by clause (i) of this Section 7(d) is
not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) of this Section 7(d) but also the relative fault of the Company on the one hand and the
Underwriters on the other with respect to the statements, omissions, acts or failures to act which resulted in such loss, claim, damage, expense or liability (or any action, investigation or proceeding in respect thereof) as well as any other
relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other with respect to such offering shall be deemed to be in the same proportion as the total net proceeds from the offering
of the Securities purchased under this Agreement (before deducting expenses) received by the Company bear to the total underwriting discount and commission received by the Underwriters in connection with the Offering, in each case as set forth in
the table on the cover page of the Prospectus. The relative fault of the Company on the one hand and the Underwriters on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material
fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or the Underwriters on the other, the intent of the parties and their relative knowledge, access to information and
opportunity to correct or prevent such untrue statement, omission, act or failure to act; provided that the parties hereto agree that the written information furnished to the Company by the Representative by or on behalf of any Underwriter
for use in any Preliminary Prospectus, any Registration Statement or the Prospectus, or in any amendment or supplement thereto, consists solely of the Underwriters’ Information as defined in Section 16. The Company and the
Underwriters agree that it would not be just and equitable if contributions pursuant to this Section 7(d) were to be determined by pro rata allocation or by any other method of allocation that does not take into account the equitable
considerations referred to herein. The amount paid or payable by an indemnified party as a result of the loss, claim, damage, expense, liability, action, investigation or proceeding referred to above in this Section 7(d) shall be deemed
to include, for purposes of this Section 7(d), any legal or other expenses reasonably incurred by such indemnified party in connection with investigating, preparing to defend or defending against or appearing as a third party witness in
respect of, or otherwise incurred in connection with, any such loss, claim, damage, expense, liability, action, investigation or proceeding. Notwithstanding the provisions of this Section 7(d), no Underwriter shall be required to
contribute any amount in excess of the total discount and commission received by such Underwriter in connection with the Offering, less the amount of any damages which such Underwriter has otherwise paid or become liable to pay by reason of any
untrue or alleged untrue statement, omission or alleged omission, act or alleged act or failure to act or alleged failure to act. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall
be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. 

  
 36 

 8. TERMINATION. The obligations of the Underwriters
hereunder may be terminated by the Representative, in its absolute discretion by notice given to the Company prior to delivery of and payment for the Notes if, prior to that time, any of the events described in Sections 6(j), 6(k), or
6(l) have occurred or if the Underwriters shall decline to purchase the Notes for any reason permitted under this Agreement. 
 9. REIMBURSEMENT OF UNDERWRITERS’ EXPENSES. Notwithstanding anything to the contrary in this Agreement, if
(a) this Agreement shall have been terminated pursuant to Section 8, (b) the Company shall fail to tender the Notes for delivery to the Underwriters for any reason not permitted under this Agreement, (c) the Underwriters
shall decline to purchase the Notes for any reason permitted under this Agreement or (d) the sale of the Notes is not consummated because any condition to the obligations of the Underwriters set forth herein is not satisfied or because of the
refusal, inability or failure on the part of the Company to perform any agreement herein or to satisfy any condition or to comply with the provisions hereof, then, in addition to the payment of out-of-pocket expenses in accordance with
Section 5, the Company shall reimburse the Underwriters for the fees and expenses of the Underwriters’ counsel and for such other accountable out-of-pocket expenses as shall have been reasonably incurred by them in connection with
this Agreement and the proposed purchase of the Notes, and upon demand the Company shall pay the full amount thereof to the Representative on behalf of the Underwriters. 
 10. ABSENCE OF FIDUCIARY RELATIONSHIP. The Company acknowledges and agrees that: 

(a) Each Underwriter’s responsibility to the Company is solely contractual in nature, each Underwriter has been
retained solely to act as an underwriter in connection with the Offering and no fiduciary, advisory or agency relationship between the Company and such Underwriter has been created in respect of any of the transactions contemplated by this
Agreement, irrespective of whether LCM, SNC or Lazard Frères & Co. LLC has advised or is advising the Company on other matters; 
 (b) the price of the Notes set forth in this Agreement was established by the Company following discussions and arms-length negotiations with the Representative, and the Company is capable of evaluating
and understanding, and understands and accepts, the terms, risks and conditions of the transactions contemplated by this Agreement; 
 (c) it has been advised that LCM, SNC and Lazard Frères & Co. LLC and each of their affiliates are engaged in a broad range of transactions which may involve interests that differ from
those of the Company and that the Underwriters have no obligation to disclose such interests and transactions to the Company by virtue of any fiduciary, advisory or agency relationship; and 

  
 37 

 (d) it waives, to the fullest extent permitted by law, any claims it may
have against the Underwriters for breach of fiduciary duty or alleged breach of fiduciary duty and agrees that the Underwriters shall have no liability (whether direct or indirect) to the Company in respect of such a fiduciary duty claim or to any
person asserting a fiduciary duty claim on behalf of or in right of the Company, including stockholders, employees or creditors of the Company. 
 11. SUCCESSORS; PERSONS ENTITLED TO BENEFIT OF AGREEMENT. This Agreement
shall inure to the benefit of and be binding upon the several Underwriters, the Company, and their respective successors and assigns. This Agreement shall also inure to the benefit of Lazard Frères & Co. LLC, and each of its
successors and assigns, which shall be third party beneficiaries hereof. Notwithstanding the foregoing, the determination as to whether any condition in Section 6 hereof shall have been satisfied, and the waiver of any condition in
Section 6 hereof, may be made by the Representative in its sole discretion, and any such determination or waiver shall be binding on each of the Underwriters and shall not require the consent of any Underwriter. Nothing expressed or
mentioned in this Agreement is intended or shall be construed to give any person, other than the persons mentioned in the preceding sentences, any legal or equitable right, remedy or claim under or in respect of this Agreement, or any provisions
herein contained, this Agreement and all conditions and provisions hereof being intended to be and being for the sole and exclusive benefit of such persons and for the benefit of no other person; except that the representations, warranties,
covenants, agreements and indemnities of the Company contained in this Agreement shall also be for the benefit of the Underwriter Indemnified Parties and the several indemnities of the Underwriters shall be for the benefit of the Company Indemnified
Parties. It is understood that each Underwriter’s responsibility to the Company is solely contractual in nature and the Underwriters do not owe the Company, or any other party, any fiduciary duty as a result of this Agreement. 

12. SURVIVAL OF INDEMNITIES, REPRESENTATIONS, WARRANTIES,
ETC. The respective indemnities, covenants, agreements, representations, warranties and other statements of the Company and the several Underwriters, as set forth in this Agreement or made by them respectively,
pursuant to this Agreement, shall remain in full force and effect, regardless of any investigation made by or on behalf of any Underwriter, the Company or any person controlling any of them and shall survive delivery of and payment for the Notes.
Notwithstanding any termination of this Agreement, including without limitation any termination pursuant to Section 8, the indemnity and contribution and reimbursement agreements contained in Sections 7 and 9 and the
representations and warranties set forth in this Agreement shall not terminate and shall remain in full force and effect at all times. 
 13. NOTICES. All statements, requests, notices and agreements hereunder shall be in writing, and: 

(a) if to the Representative, shall be delivered or sent by mail, facsimile transmission or email to Lazard Capital
Markets LLC, 30 Rockefeller Plaza, New York, New York 10020, Attention: General Counsel, Fax: 212-830-3615; and 

  
 38 

 (b) if to the Company, shall be delivered or sent by mail, facsimile
transmission or email to: FuelCell Energy, Inc., 3 Great Pastures Road, Danbury, CT 06813, Attention: Ross Levine, Esq., Corporate Legal, Fax: (203) 825-6069; with copies to (i) Patterson Belknap Webb & Tyler LLP, 1133
Avenue of the Americas, New York, NY 10036, Attention: Peter Schaeffer, Esq., Fax: 212-336-1244, and (ii) Robinson & Cole LLP, 1055 Washington Boulevard, Stamford, CT 06901, Attention: Richard A. Krantz, Facsimile No.:
(203) 462-7599; 
 provided, however, that any notice to the Underwriters pursuant to Section 7 shall be delivered or
sent by mail or facsimile transmission to the Representative at its address set forth in its acceptance communication to the Representative, which address will be supplied to any other party hereto by the Representative upon request. Any such
statements, requests, notices or agreements shall take effect at the time of receipt thereof, except that any such statement, request, notice or agreement delivered or sent by email shall take effect at the time of confirmation of receipt thereof by
the recipient thereof. 
 14. DEFINITION OF CERTAIN
TERMS. For purposes of this Agreement, (a) “business day” means any day on which the New York Stock Exchange, Inc. is open for trading, (b) “knowledge” means the knowledge
of the directors and officers of the Company after reasonable inquiry and (c) “subsidiary” has the meaning set forth in Rule 405 of the Rules and Regulations. 

15. GOVERNING LAW, AGENT FOR SERVICE AND
JURISDICTION. This Agreement shall be governed by and construed in accordance with the laws of the State of New York, including without limitation Section 5-1401 of the New York General Obligations Law.
No legal proceeding may be commenced, prosecuted or continued in any court other than the courts of the State of New York located in the City and County of New York or in the United States District Court for the Southern District of New York,
which courts shall have jurisdiction over the adjudication of such matters, and the Company and the Underwriters each hereby consent to the jurisdiction of such courts and personal service with respect thereto. The Company and the Underwriters each
hereby waive all right to trial by jury in any legal proceeding (whether based upon contract, tort or otherwise) in any way arising out of or relating to this Agreement. The Company agrees that a final judgment in any such legal proceeding brought
in any such court shall be conclusive and binding upon the Company and the Underwriters and may be enforced in any other courts in the jurisdiction of which the Company is or may be subject, by suit upon such judgment. 

16. UNDERWRITERS’ INFORMATION. The parties hereto acknowledge and agree that,
for all purposes of this Agreement, the “Underwriters’ Information” consists solely of the following information in the Prospectus: (i) the last paragraph on the front cover page concerning the terms of the offering; and
(ii) the statements concerning the Underwriters contained in the first paragraph, concerning the Underwriters and Lazard Frères & Co. LLC in the seventh paragraph and concerning stabilization by the Underwriters in the tenth
paragraph, in each case under the heading “Underwriting.” 

  
 39 

 17. PARTIAL UNENFORCEABILITY. The
invalidity or unenforceability of any section, paragraph, clause or provision of this Agreement shall not affect the validity or enforceability of any other section, paragraph, clause or provision hereof. If any section, paragraph, clause or
provision of this Agreement is for any reason determined to be invalid or unenforceable, there shall be deemed to be made such minor changes (and only such minor changes) as are necessary to make it valid and enforceable. 

18. GENERAL. This Agreement constitutes the entire agreement of the parties to this Agreement and
supersedes all prior written or oral and all contemporaneous oral agreements, understandings and negotiations with respect to the subject matter hereof. In this Agreement, the masculine, feminine and neuter genders and the singular and the plural
include one another. The section headings in this Agreement are for the convenience of the parties only and will not affect the construction or interpretation of this Agreement. This Agreement may be amended or modified, and the observance of any
term of this Agreement may be waived, only by a writing signed by the Company and the Representative. 
 19.
RESEARCH ANALYST INDEPENDENCE. The Company acknowledges that each Underwriter’s research analysts and research departments are required to be independent from its investment
banking division and are subject to certain regulations and internal policies, and that such Underwriter’s research analysts may hold views and make statements or investment recommendations and/or publish research reports with respect to the
Company and/or the offering that differ from the views of their investment banking division. The Company hereby waives and releases, to the fullest extent permitted by law, any claims that the Company may have against either Underwriter with respect
to any conflict of interest that may arise from the fact that the views expressed by its independent research analysts and research departments may be different from or inconsistent with the views or advice communicated to the Company by such
Underwriter’s investment banking division. The Company acknowledges that each Underwriter is a full service securities firm and as such from time to time, subject to applicable securities laws, rules and regulations, may effect transactions for
its own account or the account of its customers and hold long or short positions in debt or equity securities of the Company; provided, however, that nothing in this Section 20 shall relieve either Underwriter of any responsibility or
liability it may otherwise bear in connection with activities in violation of applicable securities laws, rules or regulations. 

  
 40 

 20. DEFAULTING UNDERWRITERS. 

If, on the Closing Date, any one or more of the Underwriters shall fail or refuse to purchase the Notes that it has or they have agreed to
purchase hereunder on such date, and the aggregate principal amount of such Notes which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase is not more than one-tenth of the aggregate principal amount of such Notes
to be purchased on such date, the other Underwriters shall be obligated severally in the proportions that the principal amount of Notes set forth opposite their respective names in Schedule C bears to the aggregate principal amount of Notes
set forth opposite the names of all such non-defaulting Underwriters, or in such other proportions as you may specify, to purchase the Notes which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase on such date;
provided that in no event shall the aggregate principal amount of such Notes that any Underwriter has agreed to purchase pursuant to this Agreement be increased pursuant to this Section 20 by an amount in excess of one-ninth of such
principal amount of Notes without the written consent of such Underwriter. If, on the Closing Date, any Underwriter or Underwriters shall fail or refuse to purchase Notes and the aggregate principal amount of Notes with respect to which such default
occurs is more than one-tenth of the aggregate principal amount of Notes to be purchased on such date, and arrangements satisfactory to you and the Company for the purchase of such Notes are not made within thirty-six (36) hours after such
default, this Agreement shall terminate without liability on the part of any non-defaulting Underwriter or the Company. In any such case either you or the Company shall have the right to postpone the Closing Date, but in no event for longer than
seven (7) days, in order that the required changes, if any, in the Registration Statement, in the Pricing Prospectus, in the Prospectus or in any other documents or arrangements may be effected. Any action taken under this paragraph shall not
relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement. 
 21.
COUNTERPARTS. This Agreement may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument and such
signatures may be delivered by facsimile. 

  
 41 

 If the foregoing is in accordance with your understanding of the agreement between the
Company and the Underwriters, kindly indicate your acceptance in the space provided for that purpose below. 
  

			
	Very truly yours,
	
	FUELCELL ENERGY, INC.
		
	By:	 	/s/ Michael S. Bishop
		 	Name: Michael S. Bishop
		 	Title: Senior Vice President, Chief Financial Officer

 Confirmed as of the date 
 first above written, on 
 behalf of itself and the 

Underwriters set forth in 
 Schedule C
hereto: 
  

			
	LAZARD CAPITAL MARKETS LLC
		
	By:	 	/s/ William B. Buchanan, Jr.
		 	Name: William B. Buchanan, Jr.
		 	Title: Managing Director

 [Signature Page to FuelCell Energy Underwriting Agreement – June 19, 2013] 

  
 42EX-10.1

 Exhibit 10.1 
 [Execution Version] 
  

 
  

SIXTH AMENDMENT TO 
 CREDIT AGREEMENT 
 dated as of 

June 19, 2013 
 among 
 PETROQUEST ENERGY, INC., 

as Parent, 

PETROQUEST ENERGY, L.L.C., 
 as Borrower, 
 JPMORGAN CHASE BANK, N.A., 

as Administrative Agent, 
 and 
 The Lenders Party Hereto 

 
  

WELLS FARGO BANK, N.A., 
 as Syndication Agent, 
 and 

CAPITAL ONE, N.A., 
 as Documentation Agent 
  

 
 J.P. MORGAN
SECURITIES LLC, 
 as Lead Arranger 
  

 
  

 SIXTH AMENDMENT TO CREDIT AGREEMENT 

THIS SIXTH AMENDMENT TO CREDIT AGREEMENT (this “Sixth Amendment”) dated as of June 19, 2013, is among
PETROQUEST ENERGY, INC., a Delaware corporation, as the Parent, PETROQUEST ENERGY, L.L.C., a Louisiana limited liability company, as the Borrower, JPMORGAN CHASE BANK, N.A., as Administrative Agent, and the Lenders party hereto.

 R E C I T A L S 
 WHEREAS, the Parent, the Borrower, the Administrative Agent and the Lenders are parties to that certain Credit Agreement dated as of October 2, 2008, as amended by that certain First Amendment to
Credit Agreement dated as of March 24, 2009, that certain Second Amendment to Credit Agreement dated as of September 30, 2009, that certain Third Amendment to Credit Agreement dated as of August 5, 2010, that certain Fourth Amendment
to Credit Agreement dated as of October 3, 2011 and that certain Fifth Amendment to Credit Agreement dated as of March 29, 2013 (as otherwise amended, restated, supplemented or modified from time to time, the “Credit
Agreement”), pursuant to which the Lenders have made certain loans to and extensions of credit for the account of the Borrower; and 
 WHEREAS, the Borrower has advised Administrative Agent and the Lenders that the Borrower intends to purchase certain Oil and Gas Properties pursuant to the Gulf of Mexico Purchase Agreement (as defined in
the Credit Agreement as amended pursuant hereto); and 
 WHEREAS, in connection with the entry into the Gulf of Mexico Purchase
Agreement, the Parent desires to enter into, or to cause the Borrower to enter into, a commitment letter, together with any term sheets attached thereto, with a group of banks led by JPMorgan Chase Bank, N.A. to arrange certain senior unsecured
bridge loans in an aggregate amount up to $185,000,000 to be available to fund the Gulf of Mexico Acquisition (as defined in the Credit Agreement as amended pursuant hereto); and 

WHEREAS, the Parent desires to issue and sell in an offering (the “Debt Offering”) led by J.P. Morgan Securities Inc. up
to $200,000,000 in aggregate principal amount of new senior unsecured notes; and 
 WHEREAS, the Borrower intends to
finance the Gulf of Mexico Acquisition with the proceeds of the issuance of new senior notes pursuant to the Debt Offering, proceeds from the senior unsecured bridge loans described above and/or Borrowings under the Credit Agreement in an aggregate
amount up to $200,000,000 (the “Acquisition Financing”); and 
 WHEREAS, the Borrower has requested that the
Maximum Credit Amounts of certain Lenders be increased concurrent with the consummation of the Gulf of Mexico Acquisition; and 

WHEREAS, the Borrower has requested that the Borrowing Base be increased to $200,000,000 concurrent with the consummation of the Gulf of
Mexico Acquisition; and 
 WHEREAS the parties desire to amend the Credit Agreement to permit the Acquisition Financing and to
increase the Maximum Credit Amounts of certain Lenders and in certain other respects, and the parties desire to provide for the increase in the Borrowing Base in each case as more particularly set forth herein. 

 NOW, THEREFORE, in consideration of the premises and the mutual covenants herein contained,
for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

Section 1. Defined Terms. Each capitalized term used herein (including, without limitation, in the preamble and recitals) but not otherwise
defined herein has the meaning given such term in the Credit Agreement, including, to the extent the context so requires, after giving effect to the amendments to the Credit Agreement contained in this Sixth Amendment. Unless otherwise indicated,
all article and section references in this Sixth Amendment refer to articles and sections of the Credit Agreement. 
 Section 2.
Amendments to Credit Agreement. 
 2.1 Amendments to Section 1.02. 

(a) The definition of “Agreement” is hereby amended and restated as follows: 

“Agreement” means this Credit Agreement, as amended by the First Amendment, the Second Amendment, the
Third Amendment, the Fourth Amendment, the Fifth Amendment and the Sixth Amendment as the same may from time to time be further amended, modified, supplemented or restated. 
 (b) The definition of “Permitted Refinancing Debt” is hereby amended and restated as follows: 
 “Permitted Refinancing Debt” means Debt (for purposes of this definition, “new Debt”) incurred in exchange for, or proceeds of which are used to refinance, all of any
other Debt (the “Refinanced Debt”); provided that (a) such new Debt is in an aggregate principal amount not in excess of the sum of (i) the aggregate principal amount then outstanding of the Refinanced Debt (or, if
the Refinanced Debt is exchanged or acquired for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration thereof, such lesser amount) and (ii) an amount necessary to pay any fees and expenses
including premiums, related to such exchange or refinancing; (b) such new Debt has a stated maturity no earlier than stated maturity of the Refinanced Debt and an average life no shorter than the average life of the Refinanced Debt (provided,
that if the Refinanced Debt is the Bridge Loan Facility, such new Debt shall have a stated maturity that is not earlier than six (6) months after the Maturity Date and shall not provide for scheduled amortization prior to the stated maturity);
(c) such new Debt has a stated interest rate that is a market-based rate; (d) such new Debt does not contain any covenants which are materially more onerous to the Parent and its Subsidiaries than those imposed by the Refinanced Debt and
(e) such new Debt (and any guarantees thereof) is otherwise on terms and documentation satisfactory to the Administrative Agent. 

  
 2 

 (c) The definition of “Senior Indenture” is hereby amended and restated as
follows: 
 “Senior Indenture” means, individually and collectively, (a) that certain
Indenture dated as of August 19, 2010 between Parent and The Bank of New York Mellon Trust Company, N.A., as Trustee, as supplemented by that certain First Supplemental Indenture dated as of August 19, 2010 between Parent, Borrower, the
Subsidiary Guarantors identified therein and The Bank of New York Trust Company, N.A., as Trustee, pursuant to which the Senior Notes due 2017 were issued, (b) any indenture (including any supplemental indenture with respect to the indenture
described in the preceding clause (a)), note purchase agreement or other agreement pursuant to which any senior notes described in Section 9.02(k)(i)(B) and (C) are issued, and (c) any indenture, note purchase agreement or
other agreement pursuant to which any Permitted Refinancing Debt is issued, in each case, as hereafter amended or supplemented pursuant to Section 9.04(b). 
 (d) The definition of “Senior Notes” is hereby amended and restated as follows: 
 “Senior Notes” means (a) the Borrower’s Senior Notes due 2017, and (b) any senior notes issued by the Borrower pursuant to Section 9.02(k)(i)(B) and (C). 

 (e) The following definitions are added where alphabetically appropriate 

“ASC” means the Financial Accounting Standards Board Accounting Standards Codification, as in effect from
time to time. 
 “Bridge Loan Facility” means a bridge loan facility in an amount up to
$185,000,000 which may be provided to the Parent on terms set forth in the term sheet for the bridge loan facility as provided by the Borrower to the Administrative Agent on or prior to the Sixth Amendment Effective Date or on such other terms
reasonably acceptable to the Administrative Agent. 
 “Bridge Loans” means loans made to the
Parent pursuant to the Bridge Loan Facility. 
 “Converted Term Loan” has the meaning set forth
in Section 9.02(k)(i)(A). 
 “Flood Insurance Laws” means, collectively, (i) the
National Flood Insurance Act of 1968 as now or hereafter in effect or any successor statute thereto, (ii) the Flood Disaster Protection Act of 1973 as now or hereafter in effect or any successor statue thereto, (iii) the National Flood
Insurance Reform Act of 1994 as now or hereafter in effect or any successor statute thereto and (iv) the Flood Insurance Reform Act of 2004 as now or hereafter in effect or any successor statute thereto. 

“GOM-H” means GOM-H Exploration, LLC, a Delaware limited liability company. 

  
 3 

 “GOM-H Acquisition” means the acquisition of the GOM-H
Properties pursuant to the GOM- H Purchase Agreement. 
 “GOM-H Properties” means the Oil and
Gas Properties to be acquired by the Borrower pursuant to the GOM-H Purchase Agreement as described on Exhibits A, B and D to the GOM-H Purchase Agreement. 
 “GOM-H Purchase Agreement” means that certain Purchase and Sale Agreement dated as of June 19, 2013 by and among the Borrower, as Buyer, and GOM-H, as Seller, a true, complete and
correct copy (including, without limitation, all schedules, exhibits, attachments and amendments thereto) of which has been provided by the Borrower to the Administrative Agent on or prior to the Sixth Amendment Effective Date. 

“Gulf of Mexico Acquisition” means, collectively, the HH Acquisition and the GOM-H Acquisition.

 “Gulf of Mexico Properties” means, collectively, HH Properties and the GOM-H Properties.

 “Gulf of Mexico Purchase Agreement” means collectively the HH Purchase Agreement and the
GOM-H Purchase Agreement. 
 “HH Acquisition” means the acquisition of the HH Properties
pursuant to the HH Purchase Agreement. 
 “HH Properties” means the Oil and Gas Properties to be
acquired by the Borrower pursuant to the HH Purchase Agreement as described on Exhibits A, B and D to the HH Purchase Agreement. 
 “HH Purchase Agreement” means: (i) that certain Purchase and Sale Agreement dated as of June 19, 2013 by and among the Borrower, as Buyer, and Hall-Houston Exploration II, L.P.,
as Seller, a true, complete and correct copy (including, without limitation, all schedules, exhibits, attachments and amendments thereto) of which has been provided by the Borrower to the Administrative Agent on or prior to the Sixth Amendment
Effective Date, (ii) that certain Purchase and Sale Agreement dated as of June 19, 2013 by and among the Borrower, as Buyer, and Hall-Houston Exploration III, L.P., as Seller, a true, complete and correct copy (including, without
limitation, all schedules, exhibits, attachments and amendments thereto) of which has been provided by the Borrower to the Administrative Agent on or prior to the Sixth Amendment Effective Date and (iii) that certain Purchase and Sale Agreement
dated as of June 19, 2013 by and among the Borrower, as Buyer, and Hall-Houston Exploration IV, L.P., as Seller, a true, complete and correct copy (including, without limitation, all schedules, exhibits, attachments and amendments thereto) of
which has been provided by the Borrower to the Administrative Agent on or prior to the Sixth Amendment Effective Date. 

  
 4 

 “Senior Exchange Notes” has the meaning set forth in
Section 9.02(k)(i)(A). 
 “Senior Notes due 2017” means the Borrower’s $150,000,000
10% Senior Notes issued under the indenture and supplemental indenture described in clause (a) of the definition of “Senior Indenture”. 
 “Sixth Amendment” means the Sixth Amendment to Credit Agreement dated as of June 19, 2013 among the Parent, the Borrower, the Administrative Agent, and the Lenders party thereto.

 “Sixth Amendment Effective Date” has the meaning set forth in the Sixth Amendment.

 2.2 Amendment to Section 8.01. Section 8.01 of the Credit Agreement is hereby amended to add
a new clause (s) which shall read in full as follows: 
 (s) Certificate of Responsible Officer – Qualified ECP
Guarantor Status. Concurrently with any delivery of financial statements under Section 8.01(a) or Section 8.01(b), a certificate of a Responsible Officer, which certificate shall identify which of the Parent, the Borrower, any
Subsidiaries thereof and any Guarantors are or are not Qualified ECP Guarantors as of the date of delivery of such certificate. 
 2.3 Amendment to 8.14. Section 8.14 of the Credit Agreement is hereby amended to add new clause (c) which shall read in full as follows: 

(c) The Parent and the Borrower shall not, and shall not permit any of their Subsidiaries to, permit to exist any Lien on any
“building” or “manufactured (mobile) home” (each as defined in Regulation H promulgated under the Flood Insurance Laws) except Excepted Liens. 

2.4 Amendment to Section 9.01(a). Section 9.01(a) of the Credit Agreement is hereby amended to read in
full as follows: 
 (a) Ratio of Total Debt to EBITDAX. The Parent will not, at any time, permit its ratio
of Total Debt as of such time to EBITDAX for any period of four consecutive fiscal quarters ending (i) on or prior to June 30, 2013 to be greater than 3.0 to 1.0 and (ii) on or after September 30, 2013, to be greater than 3.5 to
1.0; provided, that for purposes of calculating such ratio with respect to the four-fiscal quarter periods ending September 30, 2013, December 31, 2013 and March 31, 2014, respectively, (i) EBITDAX for the
four-fiscal quarter period ending September 30, 2013, shall be deemed to equal EBITDAX for the fiscal quarter ending September 30, 2013, multiplied by four (4), (ii) EBITDAX for the four-fiscal quarter period ending
December 31, 2013, shall be deemed to equal EBITDAX for the two-fiscal quarter period ending December 31, 2013, multiplied by two (2), and (iii) EBITDAX for the four-fiscal quarter period ending March 31, 2014, shall be
deemed to equal EBITDAX for the three-fiscal quarter period ending 

  
 5 

 
March 31, 2014, multiplied by four-thirds (4/3); and provided further that if any Debt described in Section 9.02(k) is incurred on or prior to June 30, 2013, such Debt shall be
excluded from Total Debt for purposes of testing compliance with this covenant on June 30, 2013. 
 2.5
Amendment to Section 9.02. Section 9.02 of the Credit Agreement is hereby amended by amending and restating clause (h) and inserting a new clause (k) which clauses shall read in full as follows: 

(h) Debt (i) under the Senior Notes due 2017 and any guarantees thereof, the principal amount of which does not
exceed $150,000,000 in the aggregate, and (ii) Debt which constitutes Permitted Refinancing Debt of such Senior Notes due 2017 and any guarantees thereof; 
 (k) Debt (i) incurred to finance the Gulf of Mexico Acquisition in a stated principal amount of up to $200,000,000 consisting of one or more of: 

(A) Bridge Loans; provided, that the Bridge Loans shall be on the terms and conditions set forth in the Bridge Commitment
and otherwise on terms and conditions approved by the Administrative Agent, such approval not to be unreasonably conditioned, delayed or withheld; and further provided, that in the event such Bridge Loans are not refinanced with proceeds of
Permitted Refinancing Debt on or before the maturity date of such Bridge Loans, the Bridge Loans will be converted to senior unsecured term loans as provided in the paragraph labeled “Maturity” of Exhibit B incorporated into the Bridge
Commitment and the Borrower shall pay the “Rollover Fee” as set forth in such paragraph (such loans, the “Converted Term Loan”); and further provided, that in the event the Converted Term Loan is not refinanced with
proceeds of Permitted Refinancing Debt on or before the maturity date of such Converted Term Loan, at the option of each lender under the Bridge Loan Facility, in accordance with the terms of the Bridge Commitment, the Converted Term Loan of such
Lender may be exchanged in whole or in part for senior exchange notes having the terms set forth in the Bridge Commitment (the “Senior Exchange Notes”). 

(B) additional senior unsecured notes issued pursuant to a supplemental indenture to and under the indenture and
supplemental indenture described in clause (a) of the definition of “Senior Indenture” and any guarantees thereof; and 
 (C) one or more additional classes of senior, unsecured notes and any guarantees thereof; provided, that any senior, unsecured notes issued pursuant to this clause (C) shall (1) have a stated
maturity not earlier than seven years following the date of issuance, (2) not require scheduled amortization, redemption a sinking fund or similar requirement prior to the stated maturity, (3) not have terms which are more onerous to the
Borrower than the terms of the Senior Notes due 2017, and (4) otherwise contain terms and conditions approved by the Administrative Agent, such approval to not be unreasonably conditioned, delayed or withheld; 

  
 6 

 The Borrower shall be permitted to incur the Debt contemplated by clauses (B) and
(C) above prior to the consummation of the Gulf of Mexico Acquisition; provided, that (i) the Borrower has the right to Redeem such Debt without material premium or penalty in the event the Gulf of Mexico Purchase Agreement is terminated
without closing of the Gulf of Mexico Acquisition and (ii) the proceeds of such Debt are placed in escrow pending the consummation of the Gulf of Mexico Acquisition, and thereafter used solely to fund the purchase price of the Gulf of Mexico
Acquisition or Redeem such debt in the event that the Gulf of Mexico Purchase Agreement is terminated without closing of the Gulf of Mexico Acquisition, which escrow arrangements and Redemption rights shall be on terms and conditions approved by the
Administrative Agent, such approval not to be unreasonably conditioned, delayed or withheld. 
 (ii) Debt which
constitutes Permitted Refinancing Debt with respect to any Debt described in preceding clause (k)(i) and any guarantees thereof. 
 2.6 Amendment to Section 9.04(a)(iv). Section 9.04(a)(iv) of the Credit Agreement is hereby amended to read in full as follows: 

(iv) so long as no Default, Event of Default or Borrowing Base Deficiency exists or would result therefrom, the Borrower
may declare and pay dividends to Parent, 
 2.7 Amendment to Section 9.04(b). Section 9.04(b) of
the Credit Agreement is hereby amended to read in full as follows: 
 (b) Redemption of Senior Notes and
Bridge Loans; Amendment of Senior Indenture and Bridge Loan Facility. It will not, and will not permit any of its Subsidiaries to, prior to the date that is ninety-one (91) days after the Maturity Date: (i) call, make or offer to make
any optional or voluntary Redemption of or otherwise optionally or voluntarily Redeem (whether in whole or in part) the Senior Notes, the Bridge Loans, the Converted Term Loan, Senior Exchange Notes or any Permitted Refinancing Debt in respect
thereof; provided that the Borrower and/or the Parent may prepay the Senior Notes and/or the Bridge Loans, the Converted Term Loan and the Senior Exchange Notes with the proceeds of any Permitted Refinancing Debt or with the net cash proceeds
of any sale of Equity Interests (other than Disqualified Capital Stock) of the Parent and, in the case of Senior Notes, following the completion of a tender offer which is substantially concurrent with the incurrence of such Permitted Refinancing
Debt; or (ii) amend, modify, waive or otherwise change, consent or agree to any amendment, modification, waiver or other change to, any of the terms of the Senior Notes, the Bridge Loan Facility, the Converted Term Loan, the Senior Exchange
Notes or any Permitted Refinancing Debt or the Senior Indenture if the effect thereof would be to shorten its maturity or average life or increase the amount of any payment of principal thereof or increase the rate or shorten any period for payment
of interest thereon. 

  
 7 

 2.8 Amendment to Section 9.05. The first sentence of
Section 9.05 of the Credit Agreement is hereby amended to read in full as follows: 
 The Parent and the
Borrower will not, and will not permit any of their Subsidiaries to, make or permit to remain outstanding any Investments in or to any Person, except that the foregoing restriction shall not apply to: 

2.9 Amendment to Section 9.05(i). Section 9.05(i) of the Credit Agreement is hereby amended to add a
proviso at the end of the first sentence therein which proviso shall read in full as follows: 
 ; provided, that, the
Borrower shall not complete the Gulf of Mexico Acquisition if Liquidity, calculated on a pro forma basis after giving effect to such acquisition, including any Borrowings made to finance such acquisition, is less than $40,000,000. 

2.10 Amendment to Section 9.12(d)(ii). Section 9.12(d)(ii) of the Credit Agreement is hereby amended to
read in full as follows: 
 (ii) if such sale or other disposition of Oil and Gas Property or Subsidiary owning Oil and Gas
Properties under this clause (d) included in the most recently delivered Reserve Report during any period between two successive Scheduled Redetermination Dates has a fair market value in excess of five percent (5%) of the Borrowing Base
as then in effect (as determined by the Administrative Agent), individually or in the aggregate, the Borrowing Base shall be reduced, effective immediately upon such sale or disposition, by an amount equal to the value (as determined by the
Administrative Agent and approved by the Required Lenders), if any, attributed to such Property in the Borrowing Base based on the most recently delivered Reserve Report and 

2.11 Replacement of References to FAS. The Credit Agreement is hereby amended to (i) delete the reference
therein to “FAS 123R” and replace such reference with a reference to “ASC 718 and/or ASC 505-50, as applicable”, (ii) delete each reference therein to “FAS 133” and replace each such reference with a reference to
“ASC 815” and (iii) delete each reference therein to “FAS 143” and replace each such reference with a reference to “ASC 410”. 
 Section 3. Borrowing Base and Maximum Credit Amount Increase. In reliance on the representations, warranties, covenants and agreements contained in this Sixth Amendment and the satisfaction of
each condition precedent set forth in Section 5 hereof: 
 (a) the Borrowing Base shall be increased to $200,000,000
effective upon the completion of the Gulf of Mexico Acquisition; provided, that, if any amendment, modification or waiver of the Gulf of Mexico Purchase Agreement results in a decrease in the purchase price set forth in the Gulf of Mexico
Purchase Agreement of more than 10% in the aggregate as a result of 

  
 8 

 
any of the following (either individually or collectively and without duplication): (i) Oil and Gas Properties being removed from the Gulf of Mexico Properties being acquired pursuant to the
Gulf of Mexico Purchase Agreement, (ii) Title Defects and/or Environmental Defects (as such terms are defined in the Gulf of Mexico Purchase Agreement) and/or casualty losses and preferential rights or consents, (iii) the termination of
the GOM-H Purchase Agreement, or (iii) any combination of the preceding clauses (i), (ii) and (iii), the Borrowing Base increase set forth in this Section 3 shall be reduced, effective immediately upon the completion of the Gulf of
Mexico Acquisition, to an amount determined by the Administrative Agent and approved by each Lender in its sole discretion; provided, further that, if a Scheduled Redetermination or Interim Redetermination occurs from and after the
date hereof but prior to the date of completion of the Gulf of Mexico Acquisition, for any such Scheduled Redetermination or Interim Redetermination, any adjustment to the Borrowing Base resulting from the Gulf of Mexico Acquisition will be
determined at the time of, and in connection with, such Scheduled Redetermination or Interim Redetermination. Upon the increase to the Borrowing Base pursuant to this Section 3, the Borrowing Base shall remain at the newly increased amount
until the next Scheduled Redetermination, Interim Redetermination or other adjustment of the Borrowing Base pursuant to the terms of the Credit Agreement (including, without limitation, adjustments pursuant to Section 8.13(c), Section 8.16
and Section 9.12(d) of the Credit Agreement). The Lenders and the Borrower agree that the redetermination provided for in this Section 3 shall constitute an Interim Redetermination of the Borrowing Base requested by the Borrower for
purposes of Section 2.07(b) of the Credit Agreement; and 
 (b) Annex I to the Credit Agreement shall be replaced in its
entirety with the Annex I attached hereto and Annex I attached hereto shall be deemed to be attached as Annex I to the Credit Agreement effective contemporaneously with the completion of the HH Acquisition, including any funding of a Borrowing to
provide a portion of the Gulf of Mexico Acquisition Financing; provided, that, after giving effect to this Sixth Amendment and any Borrowings made on or prior to satisfaction of each condition precedent set forth in Section 5 hereof:
(i) each Lender who holds Loans in an aggregate amount less than its Applicable Percentage (after giving effect to this Sixth Amendment and the completion of the HH Acquisition) of all Loans shall advance new Loans which shall be disbursed to
the Administrative Agent and used to repay Loans outstanding to each Lender who holds Loans in an aggregate amount greater than its Applicable Percentage of all Loans, (ii) each Lender’s participation in each Letter of Credit, if any,
shall be automatically adjusted to equal its Applicable Percentage (after giving effect to this Sixth Amendment and the completion of the HH Acquisition), and (iii) such other adjustments shall be made as the Administrative Agent shall specify
so that the Revolving Credit Exposure applicable to each Lender equals its Applicable Percentage (after giving effect to this Sixth Amendment and the completion of the HH Acquisition) of the aggregate Revolving Credit Exposure of all Lenders.

 Section 4. Conditions Precedent. The amendments to the Credit Agreement contained in Section 2 hereof shall be effective on
the date (the “Sixth Amendment Effective Date”) that each of the following conditions precedent is satisfied or waived in accordance with Section 12.02 of the Credit Agreement (provided, that, for the avoidance of doubt, the
increase of the Borrowing Base and the Maximum Credit Amount pursuant to Section 3 hereof shall be effective upon the satisfaction of each of the conditions precedent contained in this Section 4 and of each of the conditions precedent
contained in Section 5 below): 

  
 9 

 4.1 Counterparts. The Administrative Agent shall have received from
each of the Lenders, the Borrower and each Guarantor, counterparts (in such number as may be requested by the Administrative Agent) of this Sixth Amendment signed on behalf of such Persons. 

4.2 Fees and Expenses. The Borrower shall have paid to Administrative Agent any and all fees and expenses payable
to Administrative Agent or the Lenders pursuant to or in connection with this Sixth Amendment. 
 4.3 Purchase
Agreements. The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower certifying true, accurate and complete copies of the final execution versions of the Gulf of Mexico Purchase Agreement including,
without limitation, any and all material side letters, agreements, documents and certificates and all schedules, exhibits, attachments and amendments thereto. 
 4.4 Organization/Existence/Authority Documents. The Administrative Agent shall have received such documents and certificates as the Administrative Agent or its counsel may reasonably request
relating to the organization, existence and good standing of the Borrower and each Guarantor, the authorization of this Sixth Amendment and the transactions contemplated hereby, and any other legal matters relating to the Borrower, the Guarantors
and this Sixth Amendment. 
 4.5 Opinions. The Administrative Agent shall have received opinions of
counsel to the Borrower and each Guarantor, favorably opining as to such matters as the Administrative Agent may reasonably request. 
 4.6 Other Documents. The Administrative Agent shall have received such other documents as the Administrative Agent or counsel to the Administrative Agent may reasonably request. 

4.7 No Default/No Event of Default/No Borrowing Base Deficiency. No Default, Event of Default or Borrowing Base
Deficiency shall have occurred and be continuing. 
 The Administrative Agent is hereby authorized and directed to declare this Sixth Amendment
to be effective when it has received documents confirming or certifying, to the satisfaction of the Administrative Agent, compliance with the conditions set forth in this Section 4. Such declaration shall be final, conclusive and binding upon
all parties to the Credit Agreement for all purposes. 
 Section 5. Conditions Precedent to Borrowing Base and Maximum Credit Amount
Increase. The increase of the Borrowing Base and the Maximum Credit Amount provided for in Section 3 hereof shall be subject to the satisfaction of each of the following conditions precedent in addition to the satisfaction of each condition
precedent contained in Section 4 hereof: 
 5.1 Gulf Of Mexico Acquisition. The Borrower shall have
completed the Gulf of Mexico Acquisition: (i) pursuant to the Gulf of Mexico Purchase Agreement substantially in the form provided to Administrative Agent pursuant to Section 4.3 hereof and without amendment modification or waiver, except
as expressly permitted pursuant to Section 5.8 hereof, and pursuant thereto shall have acquired good and defensible title to all of the Gulf of 

  
 10 

 
Mexico Properties free and clear of all Liens, except Liens permitted by Section 9.03 of the Credit Agreement (excluding only those Gulf of Mexico Properties which are permitted to be
excluded pursuant to Section 5.8 hereof), (ii) on or prior to September 30, 2013 and (iii) in accordance with the terms of the Credit Agreement, including, without limitation, the minimum Liquidity requirement under
Section 9.05(i) of the Credit Agreement. 
 5.2 Mortgages/Mortgage Amendments and Title. 

(a) The Administrative Agent shall have received from the Borrower such duly executed counterparts (in such number as may be requested by
the Administrative Agent) of Mortgages (and such other assignments, conveyances, amendments, agreements, and other writings including, without limitation, UCC-1 financing statements, and tax affidavits, if any, required) granting the Administrative
Agent a Lien on the Gulf of Mexico Properties being acquired by the Borrower and/or each Guarantor such that after giving effect to the execution and delivery thereof, the Administrative Agent shall be reasonably satisfied that the Security
Instruments will, when properly executed and recorded, create first priority, perfected Liens (except for Excepted Liens, but subject to the provisos at the end of such definition) on Oil and Gas Properties comprising at least 80% of the total value
of the Borrower’s and its Subsidiaries’ Oil and Gas Properties (which shall include the Gulf of Mexico Properties) for the purposes of establishing the Borrowing Base. 

(b) The Administrative Agent shall have received title information in form and substance reasonably satisfactory to the Administrative
Agent setting forth the status of title on at least 80% of the total value of all of the Borrower’s and its Subsidiaries’ Oil and Gas Properties (which shall include the Gulf of Mexico Properties) evaluated by the Administrative Agent in
its determination of the Borrowing Base established pursuant to Section 3 hereof. 
 5.3 Lien
Releases. The Administrative Agent shall have received evidence satisfactory to it that (a) all Liens on the Gulf of Mexico Properties being acquired by the Borrower and/or each Guarantor (other than Liens permitted by Section 9.03 of
the Credit Agreement) (if any) have been released and/or terminated, subject only to the filing of applicable terminations and releases. 
 5.4 Borrowing Base Increase Fee. Administrative Agent shall have received, for the benefit of the Lenders, a Borrowing Base increase fee in an amount equal to thirty seven and a half
(37.5) basis points (0.375%) of the amount that the Borrowing Base established pursuant to Section 3 hereof exceeds the Borrowing Base in effect immediately prior to giving effect to such increase in the Borrowing Base. 

5.5 Organization/Existence/Authority Documents. The Administrative Agent shall have received such documents and
certificates as the Administrative Agent or its counsel may reasonably request relating to the organization, existence and good standing of the Borrower and each Guarantor, the authorization of the Gulf of Mexico Acquisition and each of the Security
Instruments contemplated by Section 5.2 of this Sixth Amendment and any other legal matters relating thereto as the Administrative Agent shall reasonably request. 

  
 11 

 5.6 Environmental Assessment. The Administrative Agent shall be
reasonably satisfied with the environmental condition of the Gulf of Mexico Properties being acquired by the Borrower and/or each Guarantor and shall have received a copy of any environmental site assessments in the possession or control of the
Borrower or any Subsidiary that was performed within the past three (3) years on any Oil and Gas Property comprising the Gulf of Mexico Properties being acquired by the Borrower and/or each Guarantor. 

5.7 Opinions. The Administrative Agent shall have received opinions of counsel to the Borrower and each Guarantor,
favorably opining as to such matters as the Administrative Agent may reasonably request. 
 5.8 Acquisition
Documents. The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower certifying: (a) a true, accurate and complete copy of the Gulf of Mexico Purchase Agreement which shall be in the form provided
to the Administrative Agent prior to the date hereof pursuant to Section 4.3 hereof, and including any and all side letters, material agreements, documents, certificates, amendments, modifications or waivers thereto since the delivery of such
documents pursuant to Section 4.3 hereof, which documents shall contain terms and conditions reasonably acceptable to the Administrative Agent, (b) that the Borrower is acquiring the Gulf of Mexico Properties in accordance with the terms
of the Gulf of Mexico Purchase Agreement in the form provided to Administrative Agent prior to the date hereof (without waiver or amendment of any term or condition thereof, or any exercise by the Borrower of any right thereunder which would be
materially adverse to the interests of the Lenders; provided, that, for the avoidance of doubt, any amendment, modification or waiver that results in a decrease in the purchase price set forth in the Gulf of Mexico Purchase Agreement of more than
10% in the aggregate as a result of any of the following (either individually or collectively and without duplication): (i) Oil and Gas Properties being removed from the Gulf of Mexico Properties being acquired pursuant to the Gulf of Mexico
Purchase Agreement, (ii) Title Defects and/or Environmental Defects (as such terms are defined in the Gulf of Mexico Purchase Agreement) and/or casualty losses and preferential rights or consents, (iii) the termination of the GOM-H
Purchase Agreement, or (iii) any combination of the preceding clauses (i), (ii) and (iii), shall, in each case, not be deemed to be materially adverse to the interest of the Lenders but shall result in an automatic decrease to the amount
of the increase to the Borrowing Base set forth in Section 3 hereto as provided therein); (c) as to the final purchase price for the Gulf of Mexico Properties after giving effect to all adjustments as of the closing date contemplated by
the Gulf of Mexico Purchase Agreement, (d) that all governmental and third party consents and authorizations of the Gulf of Mexico Acquisition required to be obtained by the Parent, the Borrower or any Subsidiary have been obtained and are in
full force and effect, (e) that no Material Adverse Effect (as defined in the Gulf of Mexico Purchase Agreement) shall have occurred, and (f) true, accurate and complete copies of other related documents and the accuracy of other
information as the Administrative Agent shall have reasonably requested. 
 5.9 Notes. The Administrative
Agent shall have received duly executed Notes payable to the order of each Lender whose Maximum Credit Amount will change as a result of the amendment to Annex I to the Credit Agreement set forth herein, with such Note being in a principal amount
equal to its Maximum Credit Amount as indicated on Annex I to the Credit Agreement (as amended hereby). 

  
 12 

 5.10 Other Documents. The Administrative Agent shall have received
such other documents as the Administrative Agent or special counsel to the Administrative Agent may reasonably request. 
 5.11 No Default/No Event of Default/No Borrowing Base Deficiency. No Default, Event of Default or Borrowing Base Deficiency shall have occurred and be continuing after giving effect to the increase
in the Borrowing Base and the completion of the Gulf of Mexico Acquisition. 
 For avoidance of doubt, by agreement of the parties hereto,
notwithstanding the above-referenced consummation of the Gulf of Mexico Acquisition, and references to the Gulf of Mexico Properties and the Gulf of Mexico Purchase Agreement, which are components of the Gulf of Mexico Acquisition, the conditions
set forth in this Section 5 shall be satisfied by Borrower upon the consummation of only the HH Acquisition regarding the HH Properties pursuant to the HH Purchase Agreement, and all foregoing requirements set forth in this Section 5 shall
be adjusted accordingly and shall refer not to the Gulf of Mexico Acquisition, the Gulf of Mexico Properties or the Gulf of Mexico Purchase Agreement, but to refer instead to the consummation of the HH Acquisition regarding the HH Properties
pursuant to the HH Purchase Agreement, as the context may require; provided, that, for purposes of any calculation of the Borrowing Base in accordance with Section 3(a) hereof due to a decrease of more than 10% in the aggregate of the
purchase price set forth in the Gulf of Mexico Purchase Agreement, such initial purchase price for purposes of such calculation shall nonetheless be deemed to include both the HH Properties and the GOM-H Properties. 

Section 6. Miscellaneous. 
 6.1 Confirmation. The provisions of the Credit Agreement, as amended by this Sixth Amendment, shall remain in full force and effect following the effectiveness of this Sixth Amendment. 

6.2 Ratification and Affirmation; Representations and Warranties. Each of the Borrower and each Guarantor hereby
(a) ratifies and affirms its respective obligations under, and acknowledges, renews and extends its respective continued liability under, each Loan Document to which it is a party and agrees that each Loan Document to which it is a party
remains in full force and effect, except as expressly amended hereby, notwithstanding the amendments contained herein and (b) represents and warrants to the Lenders that, as of the date hereof, after giving effect to the terms of this Sixth
Amendment: (i) all of the representations and warranties contained in each Loan Document to which it is a party are true and correct, except to the extent any such representations and warranties are expressly limited to an earlier date, in
which case, such representations and warranties shall continue to be true and correct as of such specified earlier date, (ii) no Default has occurred and is continuing and (iii) no Material Adverse Effect shall have occurred. 

6.3 Loan Document. This Sixth Amendment is a “Loan Document” as defined and described in the Credit
Agreement and all of the terms and provisions of the Credit Agreement relating to Loan Documents shall apply hereto. 

  
 13 

 6.4 Counterparts. This Sixth Amendment may be executed by one or more
of the parties hereto in any number of separate counterparts, and all of such counterparts taken together shall be deemed to constitute one and the same instrument. Delivery of this Sixth Amendment by facsimile transmission shall be effective as
delivery of a manually executed counterpart hereof. 
 6.5 NO ORAL AGREEMENT. THIS SIXTH AMENDMENT, THE
CREDIT AGREEMENT AND THE OTHER LOAN DOCUMENTS AND ANY SEPARATE LETTER AGREEMENTS WITH RESPECT TO FEES PAYABLE TO THE ADMINISTRATIVE AGENT CONSTITUTE THE ENTIRE CONTRACT AMONG THE PARTIES RELATING TO THE SUBJECT MATTER HEREOF AND THEREOF AND
SUPERSEDE ANY AND ALL PREVIOUS AGREEMENTS AND UNDERSTANDINGS, ORAL OR WRITTEN, RELATING TO THE SUBJECT MATTER HEREOF AND THEREOF. THIS SIXTH AMENDMENT, THE CREDIT AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT AMONG THE PARTIES
HERETO AND THERETO AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. 

6.6 GOVERNING LAW. THIS SIXTH AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF TEXAS. 
 6.7 Payment of Expenses. The Borrower agrees to pay or reimburse the Administrative
Agent for all of its out-of-pocket costs and expenses incurred in connection with this Sixth Amendment, any other documents prepared in connection herewith and the transactions contemplated hereby, including, without limitation, the reasonable fees
and disbursements of counsel to the Administrative Agent. 
 6.8 Severability. Any provision of this Sixth
Amendment which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. 
 6.9 Successors and Assigns. This Sixth Amendment shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns. 

[SIGNATURES BEGIN NEXT PAGE] 

  
 14 

 IN WITNESS WHEREOF, the parties hereto have caused this Sixth Amendment to be duly executed
as of the date first written above. 
  

							
	BORROWER:	 		 		 	PETROQUEST ENERGY, L.L.C.
				
		 		 		 	 /s/ J. Bond Clement

		 		 		 	 J. Bond Clement

		 		 		 	 Executive Vice President, Chief Financial Officer

		 		 		 	 and Treasurer

				
	PARENT:	 		 		 	PETROQUEST ENERGY, INC.
				
		 		 		 	 /s/ J. Bond Clement

		 		 		 	 J. Bond Clement

		 		 		 	 Executive Vice President, Chief Financial Officer

		 		 		 	 and Treasurer

				
	GUARANTOR:	 		 		 	TDC ENERGY, LLC
				
		 		 		 	 /s/ J. Bond Clement

		 		 		 	 J. Bond Clement

		 		 		 	 Executive Vice President, Chief Financial Officer

		 		 		 	 and Treasurer

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

							
	 ADMINISTRATIVE AGENT:
 AND
LENDER
	 		 	 JPMORGAN CHASE BANK, N.A.
 individually, as a Lender, as Administrative Agent and as Issuing Bank

				
		 		 	By:	 	 /s/ Ryan J. Aman

		 		 		 	Ryan J. Aman
		 		 		 	Authorized Officer

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

							
	LENDER:	 		 	WELLS FARGO BANK, N.A.
				
		 		 	By:	 	 /s/ Brett Steele

		 		 	Name:	 	Brett Steele
		 		 	Title:	 	Vice President

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

							
	LENDER:	 		 	CAPITAL ONE, N.A.
				
		 		 	By:	 	 /s/ Matthew Molero

		 		 	Name:	 	Matthew Molero
		 		 	Title:	 	Vice President

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

							
	LENDER:	 		 	IBERIABANK
				
		 		 	By:	 	 /s/ W. Bryan Chapman

		 		 	Name:	 	W. Bryan Chapman
		 		 	Title:	 	Executive Vice President

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

							
	LENDER:	 		 	WHITNEY BANK
				
		 		 	By:	 	 /s/ William Jochetz

		 		 	Name:	 	William Jochetz
		 		 	Title:	 	Vice President

  
 Signature Page
to Sixth Amendment to Credit Agreement - PetroQuest Energy, Inc. 

 ANNEX I 
 LIST OF MAXIMUM CREDIT AMOUNTS 
  

									
	 Name of Lender
	  	Applicable Percentage	 	 	Maximum Credit Amount	 
	 JPMorgan Chase Bank, N.A.
	  	 	23.00	% 	 	$	34,500,000	  
	 Wells Fargo Bank, N.A.
	  	 	20.00	% 	 	$	30,000,000	  
	 Capital One, N.A.
	  	 	20.00	% 	 	$	30,000,000	  
	 Iberiabank
	  	 	20.00	% 	 	$	30,000,000	  
	 Whitney Bank
	  	 	17.00	% 	 	$	25,500,000	  
	 TOTAL
	  	 	100.00	% 	 	$	150,000,000	  

  
 Annex I

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