Purchase Agreement



 Exhibit 10.1 
 Great Lakes Dredge & Dock Corporation 
 $250,000,000

 7.375% Senior Notes due 2019 
 PURCHASE AGREEMENT 
 January 25, 2011 

DEUTSCHE BANK SECURITIES INC. 
 MERRILL LYNCH,
PIERCE, FENNER & SMITH INCORPORATED 
 as Representatives of the several 
 Initial Purchasers named in Schedule 1 hereto. 
 c/o Deutsche Bank Securities Inc. 

60 Wall Street 
 New York, New York 10005

 Ladies and Gentlemen: 
 Great Lakes Dredge & Dock Corporation, a Delaware corporation (the “Company”) and the Company’s subsidiaries listed on Schedule 2 hereto (the
“Guarantors”) hereby confirm their agreement with the several initial purchasers named in Schedule 1 hereto (the “Initial Purchasers”) for whom you are acting as representatives (the
“Representatives”), as set forth below. 
 Section 1. The Securities. Subject to the terms and conditions
herein contained, the Company proposes to issue and sell to the Initial Purchasers $250,000,000 aggregate principal amount of its 7.375% Senior Notes due 2019 (the “Notes”). The Notes are to be issued under an indenture (the
“Indenture”) to be dated as of January 28, 2011 by and among the Company, the Guarantors and Wells Fargo Bank, National Association, as Trustee (the “Trustee”). 

The payment of principal, premium, if any, and interest on the Notes will be fully and unconditionally guaranteed (the
“Guarantees” and, together with the Notes, the “Securities”) on a senior unsecured basis, jointly and severally, by the Guarantors. 
 The Securities will be offered and sold to the Initial Purchasers without being registered under the Securities Act of 1933, as amended (the “Act”), in reliance on exemptions therefrom.

 In connection with the sale of the Securities, the Company and the Guarantors have prepared a preliminary offering memorandum
dated January 18, 2011 (the “Preliminary Memorandum”) setting forth or including a description of the terms of the Securities and the 







 
terms of the offering of the Securities, a description of the Company and any material developments relating to the Company occurring after the date of the most recent historical financial
statements included therein. As used herein, “Pricing Disclosure Package” shall mean the Preliminary Memorandum, as supplemented or amended by the written communications listed on Annex A hereto in the most recent form that
has been prepared and delivered by the Company and the Guarantors to the Initial Purchasers in connection with their solicitation of offers to purchase Securities at or prior to the time when sales of the Securities were first made (the
“Time of Execution”). Promptly after the Time of Execution and in any event no later than the second Business Day following the Time of Execution, the Company and the Guarantors will prepare and deliver to each Initial Purchaser a
final offering memorandum dated the date hereof (the “Final Memorandum”), which will consist of the Preliminary Memorandum with such changes therein as are required to reflect the information contained in the amendments or
supplements listed on Annex A hereto. The Company and the Guarantors hereby confirm that they have authorized the use of the Pricing Disclosure Package, the Final Memorandum and the Recorded Road Show (defined below) in connection with the
offer and sale of the Securities by the Initial Purchasers. 
 The Initial Purchasers and their direct and indirect transferees
of the Securities will be entitled to the benefits of the Registration Rights Agreement, to be dated as of January 28, 2011, pursuant to which the Company and the Guarantors have agreed, among other things, to file a registration statement (the
“Registration Statement”) with the Securities and Exchange Commission (the “Commission”) registering the Securities or the Exchange Securities (as defined in the Registration Rights Agreement) under the Act.

 Section 2. Representations and Warranties. As of the Time of Execution and at the Closing Date, the Company and the
Guarantors jointly and severally represent and warrant to and agree with each of the Initial Purchasers as follows (references in this Section 2 to the “Offering Memorandum” are to (i) the Pricing Disclosure Package in the
case of representations and warranties made as of the Time of Execution and (ii) both the Pricing Disclosure Package and the Final Memorandum in the case of representations and warranties made at the Closing Date): 

(a) The Preliminary Memorandum, on the date thereof, did not contain any untrue statement of a material fact or omit to state any
material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. At the Time of Execution, the Pricing Disclosure Package does not, and on the Closing Date (as defined in
Section 3 below), will not, and the Final Memorandum as of its date and on the Closing Date will not contain any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein, in the light of
the circumstances under which they were made, not misleading; provided, however, that none of the Company or Guarantors makes any representation or warranty as to the information contained in or omitted from the Pricing Disclosure
Package and Final Memorandum, in reliance upon and in conformity with information furnished in writing to the Company by or on behalf of 

  
 -2-









 
the Initial Purchasers through the Representatives specifically for inclusion therein. Neither the Company nor any of the Guarantors has distributed or referred to nor will the Company or the
Guarantors distribute or refer to any written communications (as defined in Rule 405 of the Act) that constitutes an offer to sell or solicitation of an offer to buy the Securities (each such communication by the Company, the Guarantors or their
agents and representatives (other than a communication referred to in clauses (i), (ii) and (iv) below) an “Issuer Written Communication”) other than (i) the Pricing Disclosure Package, (ii) the Final Memorandum,
(iii) the recorded electronic road show made available to investors (the “Recorded Road Show”), and (iv) any other written communication approved in writing in advance by the Representative. Any information in an Issuer
Written Communication that is not otherwise included in the Pricing Disclosure Package and the Final Memorandum does not conflict with the Pricing Disclosure Package or the Final Memorandum and, each Issuer Written Communication, when taken together
with the Pricing Disclosure Package does not at the Time of Execution and when taken together with the Final Memorandum at the Closing Date will not, contain any untrue statement of a material fact or omit to state any material fact necessary in
order to make the statements therein, in the light of the circumstances under which they were made, not misleading provided, however, that none of the Company of the Guarantors makes any representation of warranty as to the information
contained in or omitted from the Issuer Written Communication, in reliance upon and in conformity with information furnished in writing to the Company by or on behalf of the Initial Purchasers through Deutsche Bank Securities Inc. specifically for
inclusion therein. 
 (b) The Company had the authorized, issued and outstanding capitalization set forth in the Offering
Memorandum under the heading “Capitalization” in the “Historical” column; all of the subsidiaries of the Company are listed in Schedule 2 attached hereto (each, a “Subsidiary” and collectively, the
“Subsidiaries”); all of the outstanding shares of capital stock of the Company and the Subsidiaries have been, and as of the Closing Date will be, duly authorized and validly issued, are fully paid and nonassessable and were not
issued in violation of any preemptive or similar rights; all of the outstanding shares of capital stock of the Company and of each of the Subsidiaries will be free and clear of all liens, encumbrances, equities and claims (except for such liens,
encumbrances, equities and claims as set forth in the Offering Memorandum) or restrictions on transferability (other than those imposed by the Act and the securities or “Blue Sky” laws of certain jurisdictions) or voting. Except as set
forth in the Offering Memorandum, there are no (i) options, warrants or other rights to purchase, (ii) agreements or other obligations to issue or (iii) other rights to convert any obligation into, or exchange any securities for,
shares of capital stock of or ownership interests in the Company or any of the Subsidiaries outstanding. Except for the Subsidiaries, and except for the entities set forth on Schedule 2(b), or as disclosed in the Offering Memorandum, the Company
does not own, directly or indirectly, any shares of capital stock or any other equity or long-term debt securities or have any equity interest in any firm, partnership, joint venture or other entity. 

  
 -3-









 (c) Each of the Company and the Subsidiaries is duly incorporated, validly existing and in
good standing under the laws of its respective jurisdiction of incorporation and has all requisite corporate power and authority to own or lease its properties and conduct its business as now conducted and as described in the Offering Memorandum;
each of the Company and the Subsidiaries is duly qualified to do business as a foreign corporation in good standing in all other jurisdictions where the ownership or leasing of its properties or the conduct of its business requires such
qualification, except where the failure to be so qualified would not, individually or in the aggregate, be reasonably expected to have a material adverse effect on the management, business, condition (financial or otherwise), business prospects or
results of operations of the Company and the Subsidiaries, taken as a whole (any such event, a “Material Adverse Effect”). 
 (d) The Company has all requisite corporate power and authority to execute, deliver and perform each of its obligations under the Notes, the Exchange Notes (as defined in the Registration Rights
Agreement) and the Private Exchange Notes (as defined in the Registration Rights Agreement). The Notes, when issued, will be in the form contemplated by the Indenture. The Notes, the Exchange Notes and the Private Exchange Notes have each been duly
and validly authorized by the Company and, when executed by the Company and authenticated by the Trustee in accordance with the provisions of the Indenture and, in the case of the Notes, when delivered to and paid for by the Initial Purchasers in
accordance with the terms of this Agreement, will constitute valid and legally binding obligations of the Company, entitled to the benefits of the Indenture, and enforceable against the Company in accordance with their terms, except that the
enforcement thereof may be subject to (i) bankruptcy, insolvency, reorganization, fraudulent conveyance or transfer, moratorium or other similar laws now or hereafter in effect relating to creditors’ rights generally, and (ii) general
principles of equity and the discretion of the court before which any proceeding therefor may be brought (collectively, the “Enforceability Exceptions”). 
 (e) Each Guarantor has all requisite corporate, partnership, limited liability company or other organizational power and authority to execute, deliver and perform each of its obligations under the
Guarantees. The Guarantees will be in the form contemplated by the Indenture. The Guarantees have been duly and validly authorized by each Guarantor and, when the Guarantees are executed by each Guarantor and the Notes are duly executed and
authenticated by the Trustee, issued and delivered in accordance with the provisions of the Indenture and paid for as provided herein and when the Indenture has been duly executed and delivered will constitute valid and legally binding obligations
of each Guarantor, entitled to the benefits of the Indenture and enforceable against each Guarantor in accordance with their terms, except that the enforcement thereof may be subject to the Enforceability Exceptions. 

(f) The Company and each Guarantor has all requisite corporate power and authority to execute, deliver and perform its obligations under
the Indenture. As of the Closing Date, the Indenture meets the requirements for qualification under the Trust Indenture Act of 1939, as amended (the “TIA”). The Indenture has been duly and validly authorized by the


  
 -4-









 
Company and each Guarantor and, when executed and delivered by the Company and each Guarantor (assuming the due authorization, execution and delivery by the Trustee), will constitute a valid and
legally binding agreement of the Company and each Guarantor, enforceable against the Company and each Guarantor in accordance with its terms, except that the enforcement thereof may be subject to the Enforceability Exceptions. 

(g) The Company and each Guarantor has all requisite corporate power and authority to execute, deliver and perform its obligations under
the Registration Rights Agreement. The Registration Rights Agreement has been duly and validly authorized by the Company and each Guarantor and, when executed and delivered by the Company and each Guarantor (assuming the due authorization, execution
and delivery by the Initial Purchasers), will constitute a valid and legally binding agreement of the Company and each Guarantor enforceable against the Company and each Guarantor in accordance with its terms, except that (A) the enforcement
thereof may be subject to the Enforceability Exceptions and (B) any rights to indemnity or contribution thereunder may be limited by federal and state securities laws and public policy considerations. 

(h) The Company and each Guarantor has all requisite corporate power and authority to execute, deliver and perform its obligations under
this Agreement and to consummate the transactions contemplated hereby. This Agreement and the consummation by the Company and the Guarantors of the transactions contemplated hereby have been duly and validly authorized by the Company and each
Guarantor. This Agreement has been duly executed and delivered by the Company and each Guarantor. 
 (i) No consent, approval,
authorization or order of any court or governmental agency or body, or third party is required for the issuance and sale by the Company and the Guarantors of the Securities to the Initial Purchasers or the consummation by the Company and the
Guarantors of the other transactions contemplated hereby, except such as have been obtained and such as may be required under state securities or “Blue Sky” laws in connection with the purchase and resale of the Securities by the Initial
Purchasers. None of the Company or the Subsidiaries is (i) in violation of its certificate of incorporation or bylaws (or similar organizational document), (ii) in breach or violation of any statute, judgment, decree, order, rule or
regulation applicable to any of them or any of their respective properties or assets, except for any such breach or violation that would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect, or
(iii) in breach of or default under (nor has any event occurred that, with notice or passage of time or both, would constitute a default under) or in violation of any of the terms or provisions of any indenture, mortgage, deed of trust, loan
agreement, note, lease, license agreement, contract or other agreement or instrument to which any of them is a party or to which any of them or their respective properties or assets is subject (collectively, “Contracts”), except for
any such breach, default, violation or event that would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. 

  
 -5-









 (j) The execution, delivery and performance by the Company and each Guarantor of this
Agreement, the Indenture and the Registration Rights Agreement and the consummation by the Company and the Guarantors of the transactions contemplated hereby and thereby (including, without limitation, the issuance and sale of the Securities to the
Initial Purchasers) will not conflict with or constitute or result in a breach of or a default under (or an event that with notice or passage of time or both would constitute a default under) or violation of any of (i) the terms or provisions
of any Contract, except for any such conflict, breach, violation, default or event that would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect, (ii) the certificate of incorporation or bylaws (or
similar organizational document) of the Company or any of the Subsidiaries or (iii) (assuming compliance with all applicable state securities or “Blue Sky” laws and assuming the accuracy of the representations and warranties of the
Initial Purchasers in Section 8 hereof) any statute, judgment, decree, order, rule or regulation applicable to the Company or any of the Subsidiaries or any of their respective properties or assets, except for any such conflict, breach or
violation that would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. 
 (k) (i)
The audited consolidated financial statements (including the notes thereto) of the Company and the Subsidiaries included in the Offering Memorandum present fairly in all material respects the financial position, results of operations, cash flows and
changes in stockholders’ equity of the Company and the Subsidiaries at the dates and for the periods to which they relate and; since the date of the latest of such financial statements, there has been no change nor any development or event
which, individually or in the aggregate, has had or would be reasonably expected to have a Material Adverse Effect; such financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. applied on a
consistent basis, except as otherwise stated therein. The summary and selected financial and statistical data in the Offering Memorandum present fairly in all material respects the information shown therein and have been prepared and compiled on a
basis consistent with that of the audited consolidated financial statements included therein, except as otherwise stated therein. Deloitte & Touche, LLP (the “Independent Accountants”) is an independent registered public
accounting firm within the meaning of the Act and the rules and regulations promulgated thereunder. 
 (l) There is not pending
or, to the knowledge of the Company or any Guarantor, threatened any action, suit, proceeding, inquiry or investigation to which the Company or any of the Subsidiaries is a party, or to which the property or assets of the Company or any of the
Subsidiaries are subject, before or brought by any court, arbitrator or governmental agency or body that, if determined adversely to the Company or any of the Subsidiaries, would, individually or in the aggregate, be reasonably expected to have a
Material Adverse Effect or that seeks to restrain, enjoin, prevent the consummation of or otherwise challenge the issuance or sale of the Securities to be sold hereunder or the consummation of the other transactions described in the Offering
Memorandum. 

  
 -6-









 (m) Each of the Company and the Subsidiaries possesses all licenses, permits, certificates,
consents, orders, approvals and other authorizations from, and has made all declarations and filings with, all of the appropriate federal, state, local and other governmental authorities, all of the appropriate self-regulatory organizations and all
courts and other tribunals, presently required or necessary to own or lease, as the case may be, and to operate its respective properties and to carry on its respective businesses as currently conducted as set forth in the Offering Memorandum
(“Permits”), except where the failure to obtain such Permits would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect; each of the Company and the Subsidiaries has fulfilled and performed
all of its obligations with respect to such Permits and no event has occurred that allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other material impairment of the rights of the holder of any
such Permit; and none of the Company or the Subsidiaries has received any notice of any proceeding relating to the revocation or modification of any such Permit, except as described in the Offering Memorandum and except where such revocation or
modification would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. 
 (n) Since
the date of the most recent financial statements appearing in the Offering Memorandum, except as described therein, (i) none of the Company or the Subsidiaries has incurred any liabilities or obligations, direct or contingent, or entered into
or agreed to enter into any transactions or contracts (written or oral) not in the ordinary course of business, which liabilities, obligations, transactions or contracts would, individually or in the aggregate, be material to the management,
business, condition (financial or otherwise), business prospects or results of operations of the Company and its Subsidiaries, taken as a whole, (ii) none of the Company or the Subsidiaries has purchased any of its outstanding capital stock,
nor declared, paid or otherwise made any dividend or distribution of any kind on its capital stock (other than with respect to any of such Subsidiaries, the purchase of, or dividend or distribution on, capital stock owned by the Company) and
(iii) there shall not have been any material change in the capital stock or long-term indebtedness of the Company or the Subsidiaries. 
 (o) The Company and each of the Subsidiaries has timely filed all necessary federal, state, local and foreign tax returns (or has duly requested and received extensions thereof) and timely paid all of its
taxes (including in its capacity as a withholding agent), shown as due on such tax returns, except where the failure to so file such returns or pay such taxes would not, individually or in the aggregate, be reasonably expected to have a Material
Adverse Effect, and other than matters that the Company or any Subsidiary is contesting in good faith and for which the Company or such Subsidiary has provided adequate reserves, there is no tax audit, deficiency, assessment or other claim or
proceeding with respect to the Company or any of the Subsidiaries that would be reasonably expected to have, individually or in the aggregate, a Material Adverse Effect. 

  
 -7-









 (p) The statistical and market-related data included in the Offering Memorandum are based on
or derived from sources that the Company and the Subsidiaries believe to be reliable and accurate. 
 (q) None of the Company,
the Subsidiaries or any agent acting on their behalf has taken or will take any action that might cause this Agreement or the sale of the Securities to violate Regulation T, U or X of the Board of Governors of the Federal Reserve System, in
each case as in effect, or as the same may hereafter be in effect, on the Closing Date. 
 (r) Each of the Company and the
Subsidiaries has good and marketable title to all real property and good title to all personal property described in the Offering Memorandum as being owned by it and good and marketable title to a leasehold estate in the real and personal property
described in the Offering Memorandum as being leased by it free and clear of all liens, charges, encumbrances or restrictions, except as described in the Offering Memorandum or to the extent the failure to have such title or the existence of such
liens, charges, encumbrances or restrictions would not, individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. All leases, contracts and agreements to which the Company or any of the Subsidiaries is a party or by
which any of them is bound are valid and enforceable against the Company or such Subsidiary, and are valid and enforceable against the other party or parties thereto and are in full force and effect with only such exceptions as would not,
individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. 
 (s) The Company and the
Subsidiaries own or possess adequate licenses or other rights to use all patents, trademarks, service marks, trade names, copyrights and know-how necessary to conduct the businesses currently operated by them as described in the Offering Memorandum,
and none of the Company or the Subsidiaries has received any notice of infringement of or conflict with (or knows of any such infringement of or conflict with) asserted rights of others with respect to any patents, trademarks, service marks, trade
names, copyrights or know-how that, if such assertion of infringement or conflict were sustained, would be reasonably expected to have a Material Adverse Effect. 
 (t) There are no legal or governmental proceedings involving or affecting the Company or any Subsidiary or any of their respective properties or assets that would be required to be described in a
prospectus pursuant to the Act that are not described in the Offering Memorandum, nor are there any material contracts or other documents that would be required to be described in a prospectus pursuant to the Act that are not described in the
Offering Memorandum. 
 (u) Except as would not, individually or in the aggregate, be reasonably expected to have a Material
Adverse Effect (A) each of the Company and the Subsidiaries is in compliance with and has not received any notice of any liability under applicable Environmental Laws (as defined below), (B) each of the Company and the Subsidiaries has
made all 

  
 -8-









 
filings and provided all notices required under any applicable Environmental Law, and has and is in compliance with all Permits required under any applicable Environmental Laws and each of them
is in full force and effect, (C) there is no civil, criminal or administrative action, suit, demand, claim, hearing, notice of violation, investigation, proceeding, notice or demand letter or request for information pending or, to the knowledge
of the Company or any of the Subsidiaries, threatened against the Company or any of the Subsidiaries under any Environmental Law, (D) no lien, charge, encumbrance or restriction has been recorded under any Environmental Law with respect to any
assets, facility or property owned, operated, leased or controlled by the Company or any of the Subsidiaries, (E) none of the Company or the Subsidiaries has received notice that it has been identified as a potentially responsible party under
the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended (“CERCLA”), or any comparable state law and (F) no property or facility of the Company or any of the Subsidiaries is (i) listed
or, to the knowledge of the Company or any of its Subsidiaries, or proposed for listing on the National Priorities List under CERCLA or is (ii) listed in the Comprehensive Environmental Response, Compensation, Liability Information System List
promulgated pursuant to CERCLA, or on any comparable list maintained by any state or local governmental authority. 
 For purposes of this Agreement, “Environmental Laws” means the common law and all applicable federal, state and local laws or regulations, codes, orders, decrees, judgments or injunctions
issued, promulgated, approved or entered thereunder, in each case, relating to pollution or protection of public or employee health and safety or the environment, including, without limitation, laws relating to (i) emissions, discharges,
releases or threatened releases of hazardous materials into the environment (including, without limitation, ambient air, surface water, ground water, land surface or subsurface strata), (ii) the manufacture, processing, distribution, use,
generation, treatment, storage, disposal, transport or handling of hazardous materials, and (iii) underground and above ground storage tanks and related piping, and emissions, discharges, releases or threatened releases therefrom. 

(v) There is no strike, labor dispute, slowdown or work stoppage with the employees of the Company or any of the Subsidiaries that is
pending or, to the knowledge of the Company or any of the Subsidiaries, threatened. 
 (w) Each of the Company and the
Subsidiaries carries insurance in such amounts and covering such risks as is adequate for the conduct of its business and the value of its properties. 
 (x) None of the Company or the Subsidiaries has any material liability for any prohibited transaction or funding deficiency or any complete or partial withdrawal liability with respect to any pension,
profit sharing or other plan that is subject to the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), to which the Company or any of the Subsidiaries makes or ever has made a contribution and in which any
employee of 

  
 -9-









 
the Company or of any Subsidiary is or has ever been a participant. With respect to such plans, the Company and each Subsidiary is in compliance in all material respects with all applicable
provisions of ERISA. 
 (y) Each of the Company and the Subsidiaries (i) makes and keeps accurate books and records and
(ii) maintains internal accounting controls that provide reasonable assurance that (A) transactions are executed in accordance with management’s authorization, (B) transactions are recorded as necessary to permit preparation of
its financial statements and to maintain accountability for its assets, (C) access to its assets is permitted only in accordance with management’s authorization and (D) the reported accountability for its assets is compared with
existing assets at reasonable intervals. The Company and the Subsidiaries maintain systems of “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that comply with the requirements of the
Exchange Act and have been designed by, or under the supervision of, management to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles. 
 (z) The Company and the Subsidiaries maintain an effective system of
“disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that is designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is
accumulated and communicated to management of the Company and its Subsidiaries, including their respective principal executive officers and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. The
Company and the Subsidiaries have carried out evaluations, with the participation of management, of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act. 

(aa) None of the Company or the Subsidiaries will be, after giving effect to the offer and sale of the Securities and the application of
the proceeds thereof as described in the Offering Memorandum, an “investment company” or “promoter” or “principal underwriter” for an “investment company,” as such terms are defined in the Investment Company
Act of 1940, as amended, and the rules and regulations thereunder. 
 (bb) The Securities, the Indenture and the Registration
Rights Agreement will conform in all material respects to the descriptions thereof in the Offering Memorandum. 
 (cc) No holder
of securities of the Company or any Subsidiary will be entitled to have such securities registered under the registration statements required to be filed by the Company pursuant to the Registration Rights Agreement other than as expressly permitted
thereby. 
 (dd) Immediately after the consummation of the transactions contemplated by this Agreement, the fair value and
present fair saleable value of the assets of each of the 

  
 -10-









 
Company and the Subsidiaries (each on a consolidated basis) will exceed the sum of its stated liabilities and identified contingent liabilities; none of the Company or the Subsidiaries (each on a
consolidated basis) is, nor will any of the Company or the Subsidiaries (each on a consolidated basis) be, after giving effect to the execution, delivery and performance of this Agreement, and the consummation of the transactions contemplated
hereby, (a) left with unreasonably small capital with which to carry on its business as it is proposed to be conducted, (b) unable to pay its debts (contingent or otherwise) as they mature or (c) otherwise insolvent. 

(ee) None of the Company, the Subsidiaries or any of their respective Affiliates (as defined in Rule 501(b) of Regulation D under
the Act) has directly, or through any agent, (i) sold, offered for sale, solicited offers to buy or otherwise negotiated in respect of, any “security” (as defined in the Act) that is or could be integrated with the sale of the
Securities in a manner that would require the registration under the Act of the Securities or (ii) engaged in any form of general solicitation or general advertising (as those terms are used in Regulation D under the Act) in connection with the
offering of the Securities or in any manner involving a public offering within the meaning of Section 4(2) of the Act. Assuming the accuracy of the representations and warranties of the Initial Purchasers in Section 8 hereof, it is not
necessary in connection with the offer, sale and delivery of the Securities to the Initial Purchasers or in connection with the initial resale thereof, in each case, in the manner contemplated by this Agreement to register any of the Securities
under the Act or to qualify the Indenture under the TIA. 
 (ff) No securities of the Company or any Subsidiary are of the same
class (within the meaning of Rule 144A under the Act) as the Securities and listed on a national securities exchange registered under Section 6 of the Exchange Act, or quoted in a U.S. automated inter-dealer quotation system. 

(gg) None of the Company or the Subsidiaries has taken, nor will any of them take, directly or indirectly, any action designed to, or
that might be reasonably expected to, cause or result in stabilization or manipulation of the price of the Notes. 
 (hh) None
of the Company, the Subsidiaries, any of their respective Affiliates or any person acting on its or their behalf (other than the Initial Purchasers) has engaged in any directed selling efforts (as that term is defined in Regulation S under the
Act (“Regulation S”)) with respect to the Securities; the Company, the Subsidiaries and their respective Affiliates and any person acting on its or their behalf (other than the Initial Purchasers) have complied with the
offering restrictions requirement of Regulation S. 
 (ii) Neither the Company nor any of its Subsidiaries nor, to the
knowledge of the Company and each of the Guarantors, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any of its Subsidiaries has (i) used any corporate funds for any unlawful
contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any 

  
 -11-









 
foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977; or (iv) made
any bribe, rebate, payoff, influence payment, kickback or other unlawful payment. 
 (jj) The operations of the Company and its
Subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all
jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (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 knowledge of the Company,
threatened. 
 (kk) Neither the Company nor any of the Subsidiaries nor, to the knowledge of the Company, any director, officer,
agent, employee or controlled 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 contemplated hereby, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of
financing the activities of any person currently subject to any U.S. sanctions administered by OFAC. 
 Any certificate signed
by any officer of the Company or any Subsidiary and delivered to any Initial Purchaser or to counsel for the Initial Purchasers shall be deemed a joint and several representation and warranty by the Company and each of the Guarantors to each Initial
Purchaser as to the matters covered thereby. 
 Section 3. Purchase, Sale and Delivery of the Notes. On the basis of the
representations, warranties, agreements and covenants herein contained and subject to the terms and conditions herein set forth, the Company agrees to issue and sell to the Initial Purchasers, and the Initial Purchasers, acting severally and not
jointly, agree to purchase the Securities in the respective amounts set forth on Schedule 1 hereto from the Company at 98.000% of their principal amount. One or more certificates in definitive form for the Securities that the Initial
Purchasers have agreed to purchase hereunder, and in such denomination or denominations and registered in such name or names as the Representatives request upon notice to the Company at least 36 hours prior to the Closing Date, shall be delivered by
or on behalf of the Company and the Guarantors to the Representatives, against payment by or on behalf of the Initial Purchasers of the purchase price therefor by wire transfer (same day funds), to such account or accounts as the Company shall
specify prior to the Closing Date, or by such means as the parties hereto shall agree prior to the Closing Date. Such delivery of and payment for the Securities shall be made at the offices of Cahill Gordon & Reindel LLP, 80 Pine Street,
New York, New York at 10:00 A.M., New York time, on January 28, 2011, or 

  
 -12-









 
at such other place, time or date as the Representatives, on the one hand, and the Company, on the other hand, may agree upon, such time and date of delivery against payment being herein referred
to as the “Closing Date.” The Company and the Guarantors will make such certificate or certificates for the Securities available for checking and packaging by the Representatives at the offices of Deutsche Bank Securities Inc. in
New York, New York, or at such other place as Deutsche Bank Securities Inc. may designate, at least 24 hours prior to the Closing Date. 
 Section 4. Offering by the Initial Purchasers. 
 (a) The Initial Purchasers
propose to make an offering of the Securities at the price and upon the terms set forth in the Pricing Disclosure Package and the Final Memorandum as soon as practicable after this Agreement is entered into and as in the judgment of the Initial
Purchasers is advisable. 
 (b) Each Initial Purchaser hereby represents and agrees that it has not used and will not use,
authorize the use of, refer to, or participate in the planning of the use of, any written communication (as such term is defined Rule 405) that constitutes an offer to sell or the solicitation of an offer to buy the Securities other than
(i) the Pricing Disclosure Package and the Final Memorandum, (ii) any written communication listed on Annex A or prepared pursuant to Section 5(c) below (including any electronic road show), (iii) any written communication
prepared by such Initial Purchaser and approved in advance by the Company or (iv) any written communication that (A) contains only (x) information describing the preliminary terms of the Securities or their offering or
(y) information that describes the final terms of the Securities or their offering and that is included in or is subsequently included in the Final Memorandum, including by means of a pricing term sheet in the form of Annex A hereto, or
(B) does not contain any material information about the Company or any Guarantor or their securities that was provided by or on behalf of the Company or any Guarantor that was not included in the Pricing Disclosure Package or the Final
Memorandum. 
 Section 5. Covenants of the Company and the Guarantors. The Company and the Guarantors, jointly and
severally, covenant and agree with each of the Initial Purchasers as follows: 
 (a) Until the later of (i) the completion
of the distribution of the Securities by the Initial Purchasers and (ii) the Closing Date, the Company will not amend or supplement the Pricing Disclosure Package and the Final Memorandum or otherwise distribute or refer to any written
communication (as defined under Rule 405 of the Act) that constitutes an offer to sell or a solicitation of an offer to buy the Securities (other than the Pricing Disclosure Package, the Recorded Road Show and the Final Memorandum) or file any
report with the Commission under the Exchange Act unless the Initial Purchasers shall previously have been advised and furnished a copy for a reasonable period of time prior to the proposed amendment, supplement or report and as to which the Initial
Purchasers shall have given their consent 

  
 -13-









 
(such consent not to be unreasonably withheld, conditioned or delayed). The Company will promptly, upon the reasonable request of the Initial Purchasers or counsel for the Initial Purchasers,
make any amendments or supplements to the Pricing Disclosure Package and the Final Memorandum that may be necessary or advisable in connection with the resale of the Securities by the Initial Purchasers. 

(b) The Company and the Guarantors will cooperate with the Initial Purchasers in arranging for the qualification of the Securities for
offering and sale under the securities or “Blue Sky” laws of which jurisdictions as the Initial Purchasers may designate and will continue such qualifications in effect for as long as may be necessary to complete the resale of the
Securities and the Guarantees; provided, however, that in connection therewith, none of the Company and the Guarantors shall be required to qualify as a foreign corporation or to execute a general consent to service of process in any
jurisdiction or subject itself to taxation in excess of a nominal dollar amount in any such jurisdiction where it is not then so subject. 
 (c) (1) If, at any time prior to the completion of the sale by the Initial Purchasers of the Securities or the Private Exchange Notes, any event occurs or information becomes known as a result of which
the Pricing Disclosure Package and the Final Memorandum 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, in the light of the
circumstances under which they were made, not misleading, or if for any other reason it is necessary at any time to amend or supplement the Pricing Disclosure Package and the Final Memorandum to comply with applicable law, the Company will promptly
notify the Initial Purchasers thereof and will prepare, at the expense of the Company, an amendment or supplement to the Pricing Disclosure Package and the Final Memorandum that corrects such statement or omission or effects such compliance and
(2) if at any time prior to the Closing Date (i) any event shall occur or condition shall exist as a result of which any of the Pricing Disclosure Package as then amended or supplemented would include any untrue statement of a material
fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading or any Issuer Written Communication would conflict with the Pricing Disclosure
Package as then amended or supplemented, or (ii) it is necessary to amend or supplement any of the Pricing Disclosure Package so that any of the Pricing Disclosure Package or any Issuer Written Communication will comply with law, the Company
will immediately notify the Initial Purchasers thereof and forthwith prepare and, subject to paragraph (a) above, furnish to the Initial Purchasers such amendments or supplements to any of the Pricing Disclosure Package or any Issuer Written
Communication (it being understood that any such amendments or supplements may take the form of an amended or supplemented Final Memorandum) as may be necessary so that the statements in any of the Pricing Disclosure Package as so amended or
supplemented will not, in light of the circumstances under which they were made, be misleading or so that any Issuer Written Communication will not conflict with the Pricing Disclosure Package or so that the Pricing Disclosure Package or any Issuer
Written Communication as so amended or supplemented will comply with law. 

  
 -14-









 (d) The Company will, without charge, provide to the Initial Purchasers and to counsel for
the Initial Purchasers as many copies of the Pricing Disclosure Package, any Issuer Written Communication and the Final Memorandum or any amendment or supplement thereto as the Representative may reasonably request. 

(e) The Company will apply the net proceeds from the sale of the Notes as set forth under “Use of Proceeds” in the Pricing
Disclosure Package and the Final Memorandum. 
 (f) For so long as any of the Securities remain outstanding, the Company will
furnish to the Initial Purchasers copies of all reports and other communications (financial or otherwise) furnished by the Company to the Trustee or to the holders of the Securities and, upon request, copies of any reports or financial statements
furnished to or filed by the Company with the Commission or any national securities exchange on which any class of securities of the Company may be listed. 
 (g) Prior to the Closing Date, the Company will furnish to the Initial Purchasers, as soon as they have been prepared, a copy of any unaudited interim financial statements of the Company for any period
subsequent to the period covered by the most recent financial statements appearing in the Pricing Disclosure Package and the Final Memorandum. 
 (h) None of the Company or any of its Affiliates will sell, offer for sale or solicit offers to buy or otherwise negotiate in respect of any “security” (as defined in the Act) that could be
integrated with the sale of the Securities in a manner which would require the registration under the Act of the Securities. 

(i) The Company and the Guarantors will not, and will not permit any of the Subsidiaries or their respective Affiliates or persons acting
on their behalf to, engage in any form of general solicitation or general advertising (as those terms are used in Regulation D under the Act) in connection with the offering of the Securities or in any manner involving a public offering within the
meaning of Section 4(2) of the Act. 
 (j) For so long as any of the Securities remain outstanding, the Company will make
available at its expense, upon request, to any holder of such Securities and any prospective purchasers thereof the information specified in Rule 144A(d)(4) under the Act, unless the Company is then subject to Section 13 or 15(d) of the
Exchange Act. 
 (k) The Company will use its commercially reasonable efforts to permit the Securities to be eligible for
clearance and settlement through The Depository Trust Company. 

  
 -15-









 (l) During the period beginning on the date hereof and continuing to the date that is 180
days after the Closing Date, without the prior written consent of Deutsche Bank Securities Inc. the Company and the Guarantors will not offer, sell, contract to sell or otherwise dispose of, except as provided hereunder, any securities of any of the
Company and the Guarantors (or guaranteed by any of the Company and the Guarantors) that are substantially similar to the Securities. 
 (m) In connection with Securities offered and sold in an off shore transaction (as defined in Regulation S) the Company and the Guarantors will not register any transfer of such Securities not made in
accordance with the provisions of Regulation S and will not, except in accordance with the provisions of Regulation S, if applicable, issue any such Securities (including any related Guarantees) in the form of definitive securities. 

(n) None of the Company and the Guarantors or any of their Affiliates will engage in any directed selling efforts (as that term is
defined in Regulation S) with respect to the Securities. 
 (o) For a period of one year (calculated in accordance with
paragraph (d) of Rule 144 under the Act) following the date any Securities are acquired by the Company and the Guarantors or any of their Affiliates, none of the Company and the Guarantors or any of their Affiliates will sell any such
Securities. 
 (p) The Company shall apply the net proceeds from the sale of the Securities sold by it in the manner described
under the caption “Use of Proceeds” in the Pricing Disclosure Package. 
 Section 6. Expenses. The Company and
the Guarantors, jointly and severally, agree to pay all costs and expenses incident to the performance of its obligations under this Agreement, whether or not the transactions contemplated herein are consummated or this Agreement is terminated
pursuant to Section 11 hereof, including all costs and expenses incident to (i) the printing, word processing or other production of documents with respect to the transactions contemplated hereby, including any costs of printing the
Pricing Disclosure Package and the Final Memorandum and any amendment or supplement thereto, and any “Blue Sky” memoranda, (ii) all reasonable arrangements relating to the delivery to the Initial Purchasers of copies of the foregoing
documents, (iii) the fees and disbursements of the counsel, the accountants and any other experts or advisors retained by the Company and the Guarantors, (iv) preparation (including printing), issuance and delivery to the Initial
Purchasers of the Securities, (v) the qualification of the Securities under state securities and “Blue Sky” laws, including filing fees and reasonable fees and disbursements of counsel for the Initial Purchasers relating thereto,
(vi) expenses incurred by the Company and the Guarantors in connection with the “roadshow” and any other meetings with prospective investors in the Securities, (vii) fees and expenses of the Trustee including reasonable fees and
expenses of counsel, (viii) any fees charged by investment rating agencies for the rating of the Securities, 

  
 -16-









 
(ix) the cost of any advertising approved by the Initial Purchasers and the Company in connection with the Securities, and (x) the performance by the Company and the Guarantors of their
respective obligations hereunder. If the sale of the Securities provided for herein is not consummated because any condition to the obligations of the Initial Purchasers set forth in Section 7 hereof is not satisfied, because this Agreement is
terminated or because of any failure, refusal or inability on the part of the Company or the Guarantors to perform all obligations and satisfy all conditions on their part to be performed or satisfied hereunder (other than solely by reason of a
default by the Initial Purchasers of their obligations hereunder after all conditions hereunder have been satisfied in accordance herewith), the Company and the Guarantors jointly and severally agree to promptly reimburse the Initial Purchasers upon
demand for all out-of-pocket expenses (including reasonable fees, disbursements and charges of Cahill Gordon & Reindel LLP, counsel for the Initial Purchasers) that shall have been reasonably incurred by the Initial Purchasers in connection
with the proposed purchase and sale of the Securities. 
 Section 7. Conditions of the Initial Purchasers’
Obligations. The obligation of the Initial Purchasers to purchase and pay for the Securities shall, in their sole discretion, be subject to the satisfaction or waiver of the following conditions on or prior to the Closing Date: 

(a) On the Closing Date, the Initial Purchasers shall have received the opinion and negative assurance letter, dated as of the Closing
Date and addressed to the Initial Purchasers, of (i) Neal Gerber & Eisenberg LLP, counsel for the Company, in form and substance reasonably satisfactory to counsel for the Initial Purchasers, and substantially as set forth in Annex B
and (ii) Winston & Strawn LLP, counsel for the Company, in form and substance reasonably satisfactory to counsel for the Initial Purchasers, and substantially as set forth in Annex C. 

(b) On the Closing Date, the Initial Purchasers shall have received the opinion, in form and substance satisfactory to the Initial
Purchasers, dated as of the Closing Date and addressed to the Initial Purchasers, of Cahill Gordon & Reindel LLP, counsel for the Initial Purchasers, with respect to certain legal matters relating to this Agreement and such other related
matters as the Initial Purchasers may reasonably require. In rendering such opinion, Cahill Gordon & Reindel LLP shall have received and may rely upon such certificates and other documents and information as it may reasonably request to
pass upon such matters. 
 (c) On the date hereof, the Initial Purchasers shall have received from the Independent Accountants a
comfort letter dated the date hereof, in form and substance satisfactory to counsel for the Initial Purchasers with respect to the audited and any unaudited financial information in the Pricing Disclosure Package. On the Closing Date, the Initial
Purchasers shall have received from the Independent Accountants a comfort letter dated the Closing Date, in form and substance satisfactory to counsel for the Initial Purchasers, which shall refer to the comfort letter dated the date hereof and
reaffirm or update as of a more recent date, the information stated in the comfort letter dated the date hereof and similarly address the audited and any unaudited financial information in the Final Memorandum. 

  
 -17-









 (d) The representations and warranties of the Company and the Guarantors contained in this
Agreement shall be true and correct, in all material respects, on and as of the Time of Execution and on and as of the Closing Date as if made on and as of the Closing Date; provided, that each such representation or warranty that contains a
materiality qualification in the text of such representation or warranty shall be true and correct in all respects; the statements of the Company’s and the Guarantors’ officers made pursuant to any certificate delivered in accordance with
the provisions hereof shall be true and correct, in all material respects, on and as of the date made and on and as of the Closing Date; the Company and the Guarantors shall have performed all covenants and agreements and satisfied all conditions on
their part to be performed or satisfied hereunder at or prior to the Closing Date; and, except as described in the Pricing Disclosure Package and the Final Memorandum (exclusive of any amendment or supplement thereto after the date hereof),
subsequent to the date of the most recent financial statements in such Pricing Disclosure Package and the Final Memorandum, there shall have been no event or development, and no information shall have become known, that, individually or in the
aggregate, has or would be reasonably expected to have a Material Adverse Effect. 
 (e) The sale of the Securities hereunder
shall not be enjoined (temporarily or permanently) on the Closing Date. 
 (f) Subsequent to the date of the most recent
financial statements in the Pricing Disclosure Package and the Final Memorandum (exclusive of any amendment or supplement thereto after the date hereof), none of the Company or any of the Subsidiaries shall have sustained any loss or interference
with respect to its business or properties from fire, flood, hurricane, accident or other calamity, whether or not covered by insurance, or from any strike, labor dispute, slow down or work stoppage or from any legal or governmental proceeding,
order or decree, which loss or interference, individually or in the aggregate, has or would be reasonably expected to have a Material Adverse Effect. 
 (g) The Representative shall have received a certificate from the Company and each Guarantor, dated the Closing Date, signed on behalf of the Company or such Guarantor by its (i) Chief Executive
Officer, President or any Senior Vice President or executive officer performing similar functions with respect to such Guarantor and (ii) the Chief Financial Officer or executive officer performing similar functions with respect to such
Guarantor, to the effect that: 
 (i) the representations and warranties of the Company or such Guarantor
contained in this Agreement are true and correct, in all material respects, on and as of the Time of Execution and on and as of the Closing Date; provided, that each such representation or warranty that contains a materiality qualification


  
 -18-









 
in the text of such representation or warranty shall be true and correct in all respects, and the Company or such Guarantor have performed all covenants and agreements and satisfied all
conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date; 
 (ii) at the
Closing Date, since the date hereof or since the date of the most recent financial statements in the Pricing Disclosure Package and the Final Memorandum (exclusive of any amendment or supplement thereto after the date hereof), no event or
development has occurred, and no information has become known to the Company or such Guarantor, that, individually or in the aggregate, has or would be reasonably expected to have a Material Adverse Effect; and 

(iii) the sale of the Securities hereunder has not been enjoined (temporarily or permanently). 

(h) On the Closing Date, the Initial Purchasers shall have received the Registration Rights Agreement and the Indenture executed by the
Company, the Guarantors and the Trustee and such agreement shall be in full force and effect at all times from and after the Closing Date. 
 (i) The Notes shall be eligible for clearance and settlement through The Depository Trust Company. 
 On or before the Closing Date, the Initial Purchasers and counsel for the Initial Purchasers shall have received such further documents, opinions, certificates, letters and schedules or instruments
relating to the business, corporate, legal and financial affairs of the Company and the Subsidiaries as they shall have heretofore reasonably requested from the Company. 
 All such documents, opinions, certificates, letters, schedules or instruments delivered pursuant to this Agreement will comply with the provisions hereof only if they are reasonably satisfactory in all
material respects to the Representative and counsel for the Initial Purchasers. The Company and the Guarantors shall furnish to the Representative such conformed copies of such documents, opinions, certificates, letters, schedules and instruments in
such quantities as the Representative shall reasonably request. 
 Section 8. Offering of Notes; Restrictions on
Transfer. (a) Each of the Initial Purchasers agrees with the Company and the Guarantors (as to itself only) that (i) it has not and will not solicit offers for, or offer or sell, the Securities by any form of general solicitation or
general advertising (as those terms are used in Regulation D under the Act) or in any manner involving a public offering within the meaning of Section 4(2) of the Act; and (ii) it has and will solicit offers for the Securities only from,
and will offer the Securities only to (A) in the case of offers inside the United States, persons whom the Initial Purchasers reasonably 

  
 -19-









 
believe to be QIBs or, if any such person is buying for one or more institutional accounts for which such person is acting as fiduciary or agent, only when such person has represented to the
Initial Purchasers that each such account is a QIB, to whom notice has been given that such sale or delivery is being made in reliance on Rule 144A, and, in each case, in transactions under Rule 144A and (B) in the case of offers
outside the United States, to persons other than U.S. persons (“non-U.S. purchasers,” which term shall include dealers or other professional fiduciaries in the United States acting on a discretionary basis for non-U.S. beneficial owners
(other than an estate or trust)); provided, however, that, in the case of this clause (B), in purchasing such Securities such persons are deemed to have represented and agreed as provided under the caption “Transfer
Restrictions” contained in the Pricing Disclosure Package and the Final Memorandum. 
 (a) Each of the Initial Purchasers
represents and warrants (as to itself only) with respect to offers and sales outside the United States that (i) it has and will comply with all applicable laws and regulations in each jurisdiction in which it acquires, offers, sells or delivers
Securities or has in its possession or distributes any Pricing Disclosure Package or Final Memorandum or any such other material, in all cases at its own expense; (ii) the Securities have not been and will not be offered or sold within the
United States or to, or for the account or benefit of, U.S. persons except in accordance with Regulation S under the Act or pursuant to an exemption from the registration requirements of the Act; and (iii) it has offered the Securities and will
offer and sell the Securities (A) as part of its distribution at any time and (B) otherwise until 40 days after the later of the commencement of the offering and the Closing Date, only in accordance with Rule 903 of Regulation S and,
accordingly, neither it nor any persons acting on its behalf have engaged or will engage in any directed selling efforts (within the meaning of Regulation S) with respect to the Securities, and any such persons have complied and will comply with the
offering restrictions requirement of Regulation S. 
 (b) Each Initial Purchaser, severally and not jointly represents and
warrants and agrees with the Company and the Guarantors that: 
 (i) in relation to each Member State (each, a
“Relevant Member State”) of the European Economic Area which has implemented Directive 2003/71/EC (and amendments thereto, including the Directive 2010/73/EU, to the extent implemented in the Relevant Member State (the “2010
PD Amending Directive”)) including any relevant implementing measure in each Relevant Member State (the “Prospectus Directive”), with effect from and including the date on which the Prospectus Directive is implemented in
that Relevant Member State (the “Relevant Implementation Date”), it has not made and will not make an offer of Securities to the public which are the subject of the offering contemplated by the Pricing Disclosure Package and the
Final Memorandum to the public in that Relevant Member State other than: (a) to any legal entity which is a qualified investor as defined in the Prospectus Directive; (b) to fewer than 100 or, if the Relevant Member State has implemented
the relevant provision of the 2010 PD Amending Directive, 150, natural or legal persons (other than qualified 

  
 -20-









 
investors as defined in the Prospectus Directive), as permitted under the Prospectus Directive, subject to obtaining the prior consent of the relevant dealer or dealers nominated by the Company
for any such offer; or (c) in any other circumstances falling within Article 3(2) of the Prospectus Directive, provided that no such offer of Securities shall require the Company or any Initial Purchaser to publish a prospectus pursuant to
Article 3 of the Prospectus Directive. For the purposes of this provision, the expression an “offer of Securities to the public” in relation to any Securities in any Relevant Member State means the communication in any form and by
any means of sufficient information on the terms of the offer and the Securities to be offered so as to enable an investor to decide to purchase or subscribe the Securities, as the same may be varied in that Member State by any measure implementing
the Prospectus Directive in that Member State, 
 (ii) it is a person whose ordinary activities involve it in
acquiring, holding, managing or disposing of investments (as principal or agent) for the purposes of its business and (ii) it has not offered or sold and will not offer or sell the Securities other than to persons whose ordinary activities
involve them in acquiring, holding, managing or disposing of investments (as principal or as agent) for the purposes of their businesses or who it is reasonable to expect will acquire, hold, manage or dispose of investments (as principal or agent)
for the purposes of their businesses where the issue of the Securities would otherwise constitute a contravention of Section 19 of the FSMA (as defined below) by the Company; 

(iii) it has only communicated or caused to be communicated and will only communicate or cause to be communicated an
invitation or inducement to engage in investment activity (within the meaning of Section 21 of the Financial Services and Markets Act of 2000 (the “FSMA”) received by it in connection with the issue or sale of the Securities in
circumstances in which Section 21(1) of the FSMA does not apply to the Company or the Guarantors; 
 (iv) it
has complied and will comply with all applicable provisions of the FSMA with respect to anything done by it in relation to the Securities in, from or otherwise involving the United Kingdom; and 

(v) it has not, directly or indirectly, offered or sold and will not, directly or indirectly, offer or sell in the
Netherlands any Securities with a denomination of less than €50,000 (or its other currency equivalent) other than to persons who trade or invest in securities in the conduct of a profession or business (which includes banks, stockbrokers,
insurance companies, pension funds, other institutional investors and finance companies and treasury departments of large enterprises) unless one of the other exemptions from or exceptions to the prohibition contained in article 3 of the Dutch
Securities Transactions Supervision Act 1995 (Wet toezicht effectenverkeer 1995) is applicable and the conditions attached to such exemption or exception are complied with. 

  
 -21-









 Terms used in this Section 8 and not defined in this Agreement have the meanings given
to them in Regulation S. 
 Section 9. Indemnification and Contribution. (b) The Company and the Guarantors jointly
and severally agree to indemnify and hold harmless each Initial Purchaser, its affiliates, directors, officers and employees, and each person, if any, who controls any Initial Purchaser within the meaning of Section 15 of the Act or
Section 20 of the Exchange Act against any losses, claims, damages or liabilities to which any Initial Purchaser, affiliate, director, officer and employee, or such controlling person may become subject under the Act, the Exchange Act or
otherwise, insofar as any such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon the following: 
 (i) any untrue statement or alleged untrue statement made by the Company or any of its Subsidiaries in Section 2 hereof; 

(ii) any untrue statement or alleged untrue statement of any material fact contained in the Pricing Disclosure Package,
any Issuer Written Communication or Final Memorandum or any amendment or supplement thereto; or 
 (iii) the
omission or alleged omission to state, in the Pricing Disclosure Package, any Issuer Written Communication or the Final Memorandum or any amendment or supplement thereto, a material fact required to be stated therein or necessary to make the
statements therein not misleading; 
 and will reimburse, as incurred, the Initial Purchasers and each such affiliate, director, officer or
employee and each such controlling person for any legal or other expenses reasonably incurred by the Initial Purchasers and each such affiliate, director, officer or employee or such controlling person in connection with investigating, defending
against or appearing as a third-party witness in connection with any such loss, claim, damage, liability or action; provided, however, that the Company and the Guarantors will not be liable in any such case to the extent that any such
loss, claim, damage, or liability arises out of or is based upon any untrue statement or alleged untrue statement or omission or alleged omission made in the Pricing Disclosure Package, any Issuer Written Communication or Final Memorandum or any
amendment or supplement thereto in reliance upon and in conformity with written information concerning the Initial Purchasers furnished to the Company and the Guarantors by the Initial Purchasers through the Representative specifically for use
therein. The indemnity provided for in this Section 9 will be in addition to any liability that the Company and the Guarantors may otherwise have to the indemnified parties. The Company shall not be liable under this Section 9 for any
settlement of any claim or action effected without its prior written consent, which shall not be unreasonably withheld. 

  
 -22-









 (b) Each Initial Purchaser, severally and not jointly, agrees to indemnify and hold harmless
the Company and the Guarantors, their respective directors, officers and each person, if any, who controls the Company or any Guarantor within the meaning of Section 15 of the Act or Section 20 of the Exchange Act against any losses,
claims, damages or liabilities to which the Company or any Guarantor or any such director, officer or controlling person may become subject under the Act, the Exchange Act or otherwise, insofar as such losses, claims, damages or liabilities (or
actions in respect thereof) arise out of or are based upon (i) any untrue statement or alleged untrue statement of any material fact contained in the Pricing Disclosure Package, any Issuer Written Communication or Final Memorandum or any
amendment or supplement thereto, or (ii) the omission or the alleged omission to state therein a material fact required to be stated in the Pricing Disclosure Package, any Issuer Written Communication or Final Memorandum or any amendment or
supplement thereto, or necessary to make the statements therein not misleading, in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in reliance upon and
in conformity with written information concerning such Initial Purchaser, furnished to the Company by the Initial Purchasers through the Representative specifically for use therein; and subject to the limitation set forth immediately preceding this
clause, will reimburse, as incurred, any legal or other expenses reasonably incurred by the Company or any Guarantor or any such director, officer or controlling person in connection with investigating or defending against or appearing as a third
party witness in connection with any such loss, claim, damage, liability or action in respect thereof. The indemnity provided for in this Section 9 will be in addition to any liability that the Initial Purchasers may otherwise have to the
indemnified parties. The Initial Purchasers shall not be liable under this Section 9 for any settlement of any claim or action effected without their consent, which shall not be unreasonably withheld. 

(c) Promptly after receipt by an indemnified party under this Section 9 of notice of the commencement of any action for which such
indemnified party is entitled to indemnification under this Section 9, such indemnified party will, if a claim in respect thereof is to be made against the indemnifying party under this Section 9, notify the indemnifying party of the
commencement thereof in writing; but the omission to so notify the indemnifying party (i) will not relieve it from any liability under paragraph (a) or (b) above unless and to the extent such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses and (ii) will not, in any event, relieve the indemnifying party from any obligations to any indemnified party other than the indemnification obligation provided in paragraphs (a) and
(b) above. In case any such action is brought against any indemnified party, and it notifies the indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein and, to the extent that it may wish,
jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party; provided, however, that if (i) the use of counsel chosen by the
indemnifying party to represent the indemnified party would present such counsel with a conflict of interest, (ii) the defendants in any such action include both the indemnified party and the indemnifying party and the indemnified party shall
have been advised by counsel that 

  
 -23-









 
there may be one or more legal defenses available to it and/or other indemnified parties that are different from or additional to those available to the indemnifying party, or (iii) the
indemnifying party shall not have employed counsel reasonably satisfactory to the indemnified party to represent the indemnified party within a reasonable time after receipt by the indemnifying party of notice of the institution of such action,
then, in each such case, the indemnifying party shall not have the right to direct the defense of such action on behalf of such indemnified party or parties and such indemnified party or parties shall have the right to select separate counsel to
defend such action on behalf of such indemnified party or parties. After notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof and approval by such indemnified party of counsel appointed to
defend such action, the indemnifying party will not be liable to such indemnified party under this Section 9 for any legal or other expenses, other than reasonable costs of investigation, subsequently incurred by such indemnified party in
connection with the defense thereof, unless (i) the indemnified party shall have employed separate counsel in accordance with the proviso to the immediately preceding sentence (it being understood, however, that in connection with such action
the indemnifying party shall not be liable for the expenses of more than one separate counsel (in addition to local counsel) in any one action or separate but substantially similar actions in the same jurisdiction arising out of the same general
allegations or circumstances, designated by the Initial Purchasers in the case of paragraph (a) of this Section 9 or the Company and the Guarantors in the case of paragraph (b) of this Section 9, representing the indemnified
parties under such paragraph (a) or paragraph (b), as the case may be, who are parties to such action or actions) or (ii) the indemnifying party has authorized in writing the employment of counsel for the indemnified party at the
expense of the indemnifying party. All fees and expenses reimbursed pursuant to this paragraph (c) shall be reimbursed as they are incurred. After such notice from the indemnifying party to such indemnified party, the indemnifying party will
not be liable for the costs and expenses of any settlement of such action effected by such indemnified party without the prior written consent of the indemnifying party (which consent shall not be unreasonably withheld, conditioned or delayed),
unless such indemnified party waived in writing its rights under this Section 9, in which case the indemnified party may effect such a settlement without such consent. No indemnifying party shall, without the prior written consent of the
indemnified party, effect any settlement or compromise of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party, or indemnity could have been sought hereunder by any indemnified party, unless
such settlement (A) includes an unconditional written release of the indemnified party, in form and substance reasonably satisfactory to the indemnified party, from all liability on claims that are the subject matter of such proceeding and
(B) does not include any statement as to an admission of fault, culpability or failure to act by or on behalf of any indemnified party. 
 (d) In circumstances in which the indemnity agreement provided for in the preceding paragraphs of this Section 9 is unavailable to, or insufficient to hold harmless, an indemnified party in respect
of any losses, claims, damages or liabilities (or actions in respect thereof), each indemnifying party, in order to provide for just and equitable contribution, shall 

  
 -24-









 
contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (or actions in respect thereof) in such proportion as is appropriate
to reflect (i) the relative benefits received by the indemnifying party or parties on the one hand and the indemnified party on the other from the offering of the Securities or (ii) if the allocation provided by the foregoing
clause (i) is not permitted by applicable law, not only such relative benefits but also the relative fault of the indemnifying party or parties on the one hand and the indemnified party on the other in connection with the statements or
omissions or alleged statements or omissions that resulted in such losses, claims, damages or liabilities (or actions in respect thereof). The relative benefits received by the Company and the Guarantors on the one hand and any Initial Purchaser on
the other shall be deemed to be in the same proportion as the total proceeds from the offering (before deducting expenses) received by the Company and the Guarantors bear to the total discounts and commissions received by such Initial Purchaser. The
relative fault of the parties 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
any of the Company and the Guarantors on the one hand, or such Initial Purchaser on the other, the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission or alleged statement
or omission, and any other equitable considerations appropriate in the circumstances. The Company, the Guarantors and the Initial Purchasers agree that it would not be equitable if the amount of such contribution were determined by pro rata or per
capita allocation or by any other method of allocation that does not take into account the equitable considerations referred to in the first sentence of this paragraph (d). Notwithstanding any other provision of this paragraph (d), no
Initial Purchaser shall be obligated to make contributions hereunder that in the aggregate exceed the total discounts, commissions and other compensation received by such Initial Purchaser under this Agreement, less the aggregate amount of any
damages that such Initial Purchaser has otherwise been required to pay by reason of the untrue or alleged untrue statements or the omissions or alleged omissions to state a material fact, and no person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this paragraph (d), each person, if any, who controls an Initial Purchaser
within the meaning of Section 15 of the Act or Section 20 of the Exchange Act shall have the same rights to contribution as the Initial Purchasers, and each director of the Company or any Guarantor, each officer of the Company or any
Guarantor and each person, if any, who controls the Company within the meaning of Section 15 of the Act or Section 20 of the Exchange Act, shall have the same rights to contribution as the Company and the Guarantors. 

(e) The Initial Purchasers’ obligations pursuant to this Section 9 are several, and not joint, in proportion to their
respective commitments as set forth opposite their names in Schedule 1. 
 Section 10. Survival Clause. The respective
representations, warranties, agreements, covenants, indemnities and other statements of the Company and the Guarantors, 

  
 -25-









 
their officers and the Initial Purchasers set forth in this Agreement or made by or on behalf of them pursuant to this Agreement shall remain in full force and effect, regardless of (i) any
investigation made by or on behalf of the Company or any Guarantor, any of their respective officers or directors, the Initial Purchasers or any controlling person referred to in Section 9 hereof and (ii) delivery of and payment for the
Securities. The respective agreements, covenants, indemnities and other statements set forth in Sections 6, 9, 10 and 15 hereof shall remain in full force and effect, regardless of any termination or cancellation of this Agreement. 

Section 11. Termination. (c) This Agreement may be terminated in the sole discretion of the Initial Purchasers by notice to
the Company given prior to the Closing Date in the event that the Company and the Guarantors shall have failed, refused or been unable to perform all obligations and satisfy all conditions on its part to be performed or satisfied hereunder at or
prior thereto or, if at or prior to the Closing Date, 
 (i) any of the Company or the Subsidiaries shall have
sustained any loss or interference with respect to its businesses or properties from fire, flood, hurricane, accident or other calamity, whether or not covered by insurance, or from any strike, labor dispute, slow down or work stoppage or any legal
or governmental proceeding, which loss or interference, in the sole judgment of the Initial Purchasers, has had or has a Material Adverse Effect, or there shall have been, in the sole judgment of the Initial Purchasers, any event or development
that, individually or in the aggregate, has or could be reasonably likely to have a Material Adverse Effect (including without limitation a change in control of the Company or the Subsidiaries), except in each case as described in the Pricing
Disclosure Package and the Final Memorandum (exclusive of any amendment or supplement thereto); 
 (ii) trading
in securities of the Company or in securities generally on the New York Stock Exchange or the NASDAQ National Market shall have been suspended or materially limited or minimum or maximum prices shall have been established on any such exchange or
market; 
 (iii) a banking moratorium shall have been declared by New York or United States authorities or a
material disruption in commercial banking or securities settlement or clearance services in the United States; 

(iv) there shall have been (A) an outbreak or escalation of hostilities between the United States and any foreign
power, or (B) an outbreak or escalation of any other insurrection or armed conflict involving the United States or any other national or international calamity or emergency, or (C) any material change in the financial markets of the United
States which, in the case of (A), (B) or (C) above and in the sole judgment of the Representative, makes it impracticable or inadvisable to proceed with the offering or the delivery of the Securities as contemplated by the Pricing
Disclosure Package and the Final Memorandum; or 

  
 -26-









 (v) any securities of the Company shall have been downgraded by any
nationally recognized statistical rating organization or any such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its ratings of any securities of the Company (other
than an announcement with positive implications of a possible upgrading). 
 (b) Termination of this Agreement pursuant to this
Section 11 shall be without liability of any party to any other party except as provided in Section 10 hereof. 

Section 12. Information Supplied by the Initial Purchasers. The statements set forth in the third sentence of the seventh
paragraph and the eighth paragraph under the heading “Private Placement” in the Preliminary Memorandum and the Final Memorandum (to the extent such statements relate to the Initial Purchasers) constitute the only information furnished by
the Initial Purchasers to the Company and the Guarantors for the purposes of Sections 2(a) and 9 hereof. 
 Section 13.
Default by One or More of the Initial Purchasers. If one or more of the Initial Purchasers shall fail on the Closing Date to purchase the Notes which it or they are obligated to purchase under this Agreement (the “Defaulted
Securities”), the Representative shall have the right, within 24 hours thereafter, to make arrangements for one or more of the non-defaulting Initial Purchasers, or any other Initial Purchasers, to purchase all, but not less than all,
of the Defaulted Securities in such amounts as may be agreed upon and upon the terms herein set forth; if, however, the Representative shall not have completed such arrangements within such 24-hour period, then: 

(a) if the number of Defaulted Securities does not exceed 10% of the aggregate principal amount of the Notes to be
purchased hereunder, each of the non-defaulting Initial Purchasers shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations hereunder bear to the
underwriting obligations of all non-defaulting Initial Purchasers, or 
 (b) if the number of Defaulted
Securities exceeds 10% of the aggregate principal amount of the Notes to be purchased hereunder, this Agreement shall terminate without liability on the part of any non-defaulting Initial Purchaser or the Company, except as provided in
Section 10 hereof. 
 No action taken pursuant to this Section shall relieve any defaulting Initial Purchaser from
liability in respect of its default. 
 In the event of any such default which does not result in a termination of this Agreement, either the
Representative or the Company shall have the right to postpone the Closing Date for a period not exceeding seven days in order to effect any required changes in the Pricing Disclosure Package and the Final Memorandum or in any other documents or
arrangements. As used herein, the term “Initial Purchaser” includes any person substituted for an Initial Purchaser under this Section. 

  
 -27-









 Section 14. Notices. All communications hereunder shall be in writing and, if sent to
the Initial Purchasers, shall be mailed or delivered to (i) Deutsche Bank Securities Inc., 60 Wall Street, New York, New York 10005, Attention: Corporate Finance Department; if sent to the Company, shall be mailed or delivered to the Company at
Great Lakes Dredge & Dock Company, 2122 York Road, Oak Brook, IL 60523, Attention: Jonathan W. Berger; with a copy to Neal, Gerber & Eisenberg LLP, 2 North LaSalle Street, Chicago, Illinois 60602, Attention: Ross Emmerman.

 All such notices and communications shall be deemed to have been duly given: when delivered by hand, if personally delivered;
five business days after being deposited in the mail, postage prepaid, if mailed; and one business day after being timely delivered to a next-day air courier. 
 Section 15. Successors. This Agreement shall inure to the benefit of and be binding upon the Initial Purchasers, the Company, the Guarantors and their respective successors and legal
representatives, and nothing expressed or mentioned in this Agreement is intended or shall be construed to give any other person 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 (i) the indemnities of the Company and the Guarantors
contained in Section 9 of this Agreement shall also be for the benefit of any person or persons who control the Initial Purchasers within the meaning of Section 15 of the Act or Section 20 of the Exchange Act and (ii) the
indemnities of the Initial Purchasers contained in Section 9 of this Agreement shall also be for the benefit of the directors of the Company and the Guarantors, their respective officers and any person or persons who control the Company or any
Guarantor within the meaning of Section 15 of the Act or Section 20 of the Exchange Act. No purchaser of Securities from the Initial Purchasers will be deemed a successor because of such purchase. 

Section 16. APPLICABLE LAW. THE VALIDITY AND INTERPRETATION OF THIS AGREEMENT, AND THE TERMS AND CONDITIONS SET FORTH HEREIN SHALL
BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS MADE AND TO BE PERFORMED WHOLLY THEREIN, WITHOUT GIVING EFFECT TO ANY PROVISIONS THEREOF RELATING TO CONFLICTS OF LAW. 

  
 -28-









 Section 17. No Advisory or Fiduciary Responsibility. The Company and the Guarantors
acknowledge and agree that (i) the purchase and sale of the Securities pursuant to this Agreement is an arm’s-length commercial transaction between the Company and the Guarantors, on the one hand, and the Initial Purchasers, on the other,
(ii) in connection therewith and with the process leading to such transaction each Initial Purchaser is acting solely as a principal and not the agent or fiduciary of the Company or any Guarantor, (iii) no Initial Purchaser has assumed an
advisory or fiduciary responsibility in favor of the Company or any Guarantor with respect to the offering contemplated hereby or the process leading thereto (irrespective of whether such Initial Purchaser has advised or is currently advising the
Company or any Guarantor on other matters) or any other obligation to the Company except the obligations expressly set forth in this Agreement and (iv) the Company has consulted its own legal and financial advisors to the extent it deemed
appropriate. The Company and each Guarantor agrees that it will not claim that any Initial Purchaser has rendered advisory services of any nature or respect, or owes a fiduciary or similar duty to the Company or any Guarantor, in connection with
such transaction or the process leading thereto. 
 Section 18. Counterparts. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. 
 Section 19. Integration. This Agreement constitutes the entire agreement of the parties to this Agreement and supersedes all prior written or oral contemporaneous oral agreements, understandings
and negotiations with respect to the subject matter hereof. 

  
 -29-









 If the foregoing correctly sets forth our understanding, please indicate your acceptance
thereof in the space provided below for that purpose, whereupon this letter shall constitute a binding agreement between the Company and the Initial Purchasers. 

 

							
	Very truly yours,
		
		 	GREAT LAKES DREDGE & DOCK CORPORATION
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	Name:	 	Bruce J. Biemeck
		 		 	Title:	 	President and Chief Financial Officer
		
		 	GREAT LAKES DREDGE & DOCK COMPANY, LLC, a Delaware limited liability company
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	Bruce J. Biemeck, President, Chief Financial Officer and Treasurer
		
		 	DAWSON MARINE SERVICES COMPANY, a Delaware corporation
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	Bruce J. Biemeck, Senior Vice President, Chief Financial Officer and Treasurer
		
		 	GREAT LAKES CARIBBEAN DREDGING, INC., a Delaware corporation
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	Bruce J. Biemeck, Senior Vice President, Chief Financial Officer and Treasurer



  
 -30-










							
		 	NASDI HOLDINGS CORPORATION, a Delaware Corporation
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	 Bruce J. Biemeck, Vice President,
 Chief Financial Officer and Treasurer

		
		 	FIFTY-THREE DREDGING CORPORATION, a New Jersey corporation
			
		 	By:	 	 /s/ Bruce J. Biemeck

		 		 	Bruce J. Biemeck, Treasurer


  

					
	 The foregoing Agreement is hereby confirmed and accepted as of the date first above written.

	
	DEUTSCHE BANK SECURITIES INC.
		
	By:	 	 /s/ Nicholas Hayes

		 	Name:	 	Nicholas Hayes
		 	Title:	 	Managing Director
		
	By:	 	 /s/ Chris Blum

		 	Name:	 	Chris Blum
		 	Title:	 	Director
	
	MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
		
	By:	 	 /s/ Michael Grimes

		 	Name:	 	Michael Grimes
		 	Title:	 	Director


  
 -31-









 SCHEDULE 1 

 

					
	 Initial Purchaser
	  	Principal Amount of Notes	 
	 Deutsche Bank Securities Inc.
	  	$	150,000,000	  
	 Merrill Lynch, Pierce, Fenner & Smith Incorporated
	  	 	87,500,000	  
	 Lazard Capital Markets LLC
	  	 	12,500,000	 
		  	 	 	 
	 Total
	  	$	250,000,000	 
		  	 	 	 








 SCHEDULE 2 
 Subsidiaries of the Company 
  

			
	 Name
	  	 Jurisdiction of Incorporation or
Formation

		
	Great Lakes Dredge & Dock Company, LLC*	  	Delaware
		
	Dawson Marine Services Company*	  	Delaware
		
	Great Lakes Caribbean Dredging, Inc.*	  	Delaware
		
	NASDI Holdings Corporation*	  	Delaware
		
	Fifty-Three Dredging Corporation*	  	New Jersey
		
	Great Lakes Dredge & Dock Co. Brasil Ltda.	  	Brazil
		
	Lydon Dredging & Construction Co. Ltd.	  	Canada
		
	Great Lakes Dredge & Dock (Bahamas) Ltd.	  	Bahamas
		
	GLDD Mexicana, S. de R.L. de C.V.	  	Mexico
		
	NASDI, LLC	  	Delaware
		
	Yankee Environmental Services, LLC	  	Delaware

  

	*	Indicates that the Subsidiary is a Guarantor under the Agreement. 








 SCHEDULE 2(b) 
 Equity Interests and Joint Ventures 
  

	(1)	The Company has an equity interest in the following joint ventures: 

 A. Amboy Aggregates Joint Venture 
  

	(2)	Fifty-Three Dredging Corporation owns 50% of the membership interests of Lower Main Street Development, LLC, a New Jersey limited liability company.


  

	(3)	Amboy Aggregates Joint Venture owns 50% of the membership interests of New York Sand and Stone, LLC, a New York limited liability company. 


  
 -2-









 ANNEX A 
 Supplement Dated January 25, 2011 to 
 Preliminary Offering Memorandum Dated
January 18, 2011 of 
 $250,000,000 

 

 

 Great Lakes Dredge & Dock Corporation 

7.375% Senior Notes due 2019 
 This Supplement is qualified in its entirety by reference to the Preliminary Offering Memorandum. The information in this Supplement supplements the Preliminary Offering Memorandum and supersedes the
information in the Preliminary Offering Memorandum to the extent inconsistent with the information in the Preliminary Offering Memorandum. 

The notes have not been registered under the Securities Act of 1933 and are being offered only to (1) “qualified institutional buyers” as
defined in Rule 144A under the Securities Act and (2) outside the United States to non-U.S. persons in compliance with Regulation S under the Securities Act. 
 Unless otherwise indicated, terms used but not defined herein have the meaning assigned to such terms in the Preliminary Offering Memorandum. 

 

			
	Aggregate Principal Amount:	  	$250,000,000
		
	Gross Cash Proceeds to the Issuer:	  	$250,000,000
		
	Title of Securities:	  	7.375% Senior Notes due 2019
		
	Final Maturity Date:	  	February 1, 2019
		
	Issue Price:	  	100.000% plus accrued interest, if any, from January 28, 2011
		
	Coupon:	  	7.375%
		
	Yield to Maturity:	  	7.375%
		
	Spread to Treasury Security:	  	440 bps
		
	Benchmark:	  	2.75% UST due February 15, 2019









			
		
	Interest Payment Dates:	  	February 1 and August 1
		
	First Interest Payment Date:	  	August 1, 2011
		
	Optional Redemption:	  	The notes will be redeemable at the option of the Issuer, in whole or in part, at any time on and after February 1, 2015 at the redemption prices (expressed as a percentage of
principal amount) set forth below, plus accrued and unpaid interest thereon, if any, to the redemption date, if redeemed during the twelve-month period beginning on February 1 of the years indicated below:


 

					
	 Date
	  	Price	 	 
	2015	  	103.688%	 
	2016	  	101.844%	 
	2017 and thereafter	  	100.000%	 

  

					
		
		  	At any time prior to February 1, 2015, the Issuer may redeem the notes, in whole or in part upon not less than 30 nor more than 60 days’ prior notice mailed by
first-class mail to the registered address of each holder of notes or otherwise delivered in accordance with the procedures of DTC, in cash, at a redemption price equal to 100% of the principal amount of the notes redeemed plus the Applicable
Premium as of, and accrued and unpaid interest, if any, to the date of redemption (the “Redemption Date”), subject to the rights of the holders of record on the relevant record date to receive interest due on the relevant interest payment
date.
		
		  	“Applicable Premium” means, with respect to any note on any Redemption Date, the greater of:
		
		  	(1) 1.0% of the principal amount of such note; and
		
		  	(2) the excess, if any, of (a) the present value at such Redemption Date of (i) the redemption price of such note at February 1, 2015 (such redemption
price being set forth in the table appearing above under the caption “Optional Redemption”), plus (ii) all required interest payments due on such note through February 1, 2015 (excluding accrued but unpaid interest to the
Redemption Date), computed using a discount rate equal to the Treasury Rate as of such Redemption Date plus 50 basis points; over (b) then outstanding principal amount of such
note.


  
 -2-










					
		
		  	“Treasury Rate” means, as of any Redemption Date, the yield to maturity as of such Redemption Date of United States Treasury securities with a
constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two business days prior to the Redemption Date (or, if such Statistical Release is no longer
published, any publicly available source of similar market data)) most nearly equal to the period from the Redemption Date to February 1, 2015; provided, however, that if the period from the Redemption Date to February 1, 2015 is
less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.
		
	Optional Redemption with Equity Proceeds:	  	In addition, up to 35% of the notes will be redeemable by the Issuer before February 1, 2014 at a price equal to 107.375% of their principal
amount.
		
	Change of Control:	  	101%
		
	Initial Purchasers:	  	 Deutsche Bank Securities Inc.
 Merrill Lynch, Pierce, Fenner & Smith Incorporated
 Lazard Capital Markets
LLC

		
	Trade Date:	  	January 25, 2011
		
	Settlement Date:	  	January 28, 2011 (T+3)
		
	Distribution:	  	144A with registration rights as set forth in the Preliminary Offering Memorandum


  
 -3-










					
	CUSIP/ISIN Numbers:	  	144A CUSIP: 390607 AA7
		
		  	144A ISIN: US390607AA75
		
		  	Regulation S CUSIP: U39023 AD5
		
		  	Regulation S ISIN: USU39023AD58
		
	Trustee:	  	Wells Fargo Bank, National Association
		
	Other Information:	  	On January 24, 2011, the Issuer and certain of its subsidiaries entered into an amendment to its bonding agreement with Travelers Casualty and Surety Company of
America. The amendment was entered into to, among other things, permit the Issuer to incur up to $250 million of debt as part of a refinancing of the Issuer’s $175 million principal amount senior subordinated notes due December 2013. The
amendment also provides that if the Issuer’s outstanding credit exposure under its senior credit facility exceeds $25 million, then at Travelers’ request the Issuer is required to provide Travelers with $20 million of additional collateral
(in cash or an irrevocable letter of credit, at the Issuer’s discretion). In addition, the Issuer is required to grant Travelers a first priority security interest in such additional collateral in accordance with the terms and conditions of the
Issuer’s intercreditor agreement.

 The information presented in the Preliminary Offering Memorandum is deemed to have
changed to the extent affected by the changes described herein. 
 This material is confidential and is for your information only and is
not intended to be used by anyone other than you. This information does not purport to be a complete description of these securities or the offering. Please refer to the offering memorandum for a complete description. 

This communication is being distributed in the United States solely to qualified institutional buyers, as defined in Rule 144A under the Securities
Act of 1933, and outside the United States solely to non-U.S. persons as defined under Regulation S. 
 This communication is not an
offer to sell the securities and it is not a solicitation of an offer to buy the securities in any jurisdiction where the offering is prohibited, where the person making the offer is not qualified to do so, or to any person who cannot legally be
offered the securities. 

  
 -4-









 ANNEX B 
 Form of Neal, Gerber & Eisenberg LLP Opinion 
 We are of the
opinion that: 
  

	1.	The Company is a corporation existing and in good standing under the General Corporation Law of the State of Delaware. 


 

	2.	The Company has the corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Pricing Disclosure Package
and the Final Memorandum. 

  

	3.	The Company is qualified as a foreign corporation to transact business and is in good standing in those states set forth on Exhibit A hereto.


  

	4.	Each domestic Subsidiary that is a corporation is existing and in good standing under the laws of the jurisdiction of its incorporation, has the corporate power and
authority to own, lease and operate its properties and to conduct its business as described in the Pricing Disclosure Package and the Final Memorandum and is duly qualified as a foreign corporation to transact business and is in good standing in
each jurisdiction listed opposite its name on Exhibit B hereto; all of the issued and outstanding capital stock of each Subsidiary has been duly authorized and validly issued, is fully paid and non-assessable and, to our knowledge, is owned
by the Company, directly or through Subsidiaries. 

  

	5.	Each domestic Subsidiary that is a limited liability company is existing and in good standing under the laws of the jurisdiction of its formation, has the limited
liability company power and authority to own, lease and operate its properties and to conduct its business as described in the Pricing Disclosure Package and the Final Memorandum and is duly qualified as a foreign limited liability company to
transact business and is in good standing in each jurisdiction listed on Schedule B hereto; all of the issued and outstanding limited liability company interests of each Subsidiary that is a limited liability company have been duly authorized
and validly issued and, to our knowledge, other than NASDI, LLC and Yankee Environmental Services LLC, are owned by the Company, directly or through Subsidiaries. 


 

	6.	The Company and each Guarantor has the corporate or limited liability company power to execute, deliver and perform its obligations under the Purchase Agreement and to
consummate the transactions contemplated hereby. The Purchase Agreement has been duly authorized, executed and delivered by the Company and each Guarantor. 









	7.	The Company and each Guarantor has the corporate or limited liability company power to execute, deliver and perform its obligations under the Indenture. The Indenture
has been duly authorized by the Company and each Guarantor, and constitutes the valid and legally binding agreement of the Company and each Guarantor, enforceable against the Company and each Guarantor in accordance with its terms, except that the
enforcement thereof may be subject to the Enforceability Exceptions. 

  

	8.	The Company has all corporate power and authority to execute, deliver and perform its obligations under the Notes. The Indenture is in form sufficient for qualification
under the TIA. The Notes are in the form contemplated by the Indenture, have been duly authorized, executed and delivered by the Company and constitute the valid and binding obligations of the Company, enforceable against the Company in accordance
with their terms and will be entitled to the benefits of the Indenture, except that the enforcement thereof may be subject to the Enforceability Exceptions. 


 

	9.	The Company has all requisite corporate power to authorize and issue the Exchange Notes and the Private Exchange Notes and the issuance of the Exchange Notes and the
Private Exchange Notes has been duly authorized by the Company. Each of the Exchange Notes and the Private Exchange Notes, when and if executed, issued and delivered in accordance with the terms of the Registration Rights Agreement and the Indenture
(assuming the due authorization, execution and delivery of the Indenture by the Trustee and due authentication and delivery of the Exchange Notes and the Private Exchange Notes by the Trustee in accordance with the Indenture), and authenticated by
the Trustee in the manner provided in the Indenture, will be a valid and binding obligation of the Company entitled to the benefits of the Indenture, enforceable against the Company in accordance with its terms, except that the enforcement thereof
may be subject to the Enforceability Exceptions. 

  

	10.	The Guarantees have been duly and validly authorized, executed and delivered by each Guarantor and constitute valid and binding obligations of each Guarantor entitled
to the benefits of the Indenture, enforceable against the Guarantors in accordance with their terms, except that the enforcement thereof may be subject to the Enforceability Exceptions. 


 

	11.	The guarantees of the Exchange Notes and the Private Exchange Notes have been duly and validly authorized by each Guarantor and, when executed by each of the Guarantors
and when the Exchange Notes and Private Exchange Notes are duly executed and delivered against payment therefor and are authenticated by the Trustee in accordance with the provisions of the Indenture, such guarantees of the Exchange Notes and
Private Exchange Notes will have been duly executed, issued and delivered and will constitute valid and binding obligations of each Guarantor entitled to the benefits of the Indenture, enforceable against the Guarantors in accordance with their
terms, except that the enforcement thereof may be subject to the Enforceability Exceptions. 


  
 -2-










	12.	The Company and each Guarantor has the corporate or limited liability company power to execute, deliver and perform its obligations under the Registration Rights
Agreement. The Registration Rights Agreement has been duly authorized by the Company and each Guarantor and, when duly executed and delivered by the Company and each Guarantor (assuming the due authorization, execution and delivery thereof by the
Initial Purchasers), will constitute the valid and legally binding agreement of the Company and each Guarantor, enforceable against the Company and each Guarantor in accordance with its terms, except that the enforcement thereof may be subject to
the Enforceability Exceptions. 

  

	13.	The Notes, the Guarantees and the Exchange Notes and the guarantees thereof and the Registration Rights Agreement conform in all material respects to the descriptions
thereof contained in the Pricing Disclosure Package and the Final Memorandum. 

  

	14.	The statements in the Pricing Disclosure Package and the Final Memorandum under the captions “Certain United States Federal Income Tax Considerations” fairly
present and summarize, in all material respects, the matters referred to therein. 

  

	15.	To our knowledge, there are no legal or governmental proceedings pending or threatened against the Company or any of the Guarantors that are required to be disclosed in
the Pricing Disclosure Package and the Final Memorandum, other than those disclosed therein, or that seek to restrain, enjoin or prevent the consummation of or otherwise challenge the issuance or sale of the Notes or the consummation of the other
transactions described in the Pricing Disclosure Package and the Final Memorandum under the caption “Use of Proceeds.” 

  

	16.	The execution and delivery of the Purchase Agreement, the Indenture, the Registration Rights Agreement and the consummation of the transactions contemplated hereby and
thereby (including, without limitation, the issuance and sale of the Notes to the Initial Purchasers) will not (i) violate the Certificate of Incorporation or Bylaws of the Company or the certificate of incorporation or bylaws (or similar
organizational document) of any of the Guarantors, (ii) assuming compliance with all applicable state securities or “blue sky” laws and assuming the accuracy of the representations and warranties of the Initial Purchasers in
Section 8 of the Purchase Agreement, contravene any statute or governmental rule or regulation which, in our experience, is normally applicable both to general business corporations that are not engaged in regulated business activities and to
transactions of the type contemplated by the Purchase Agreement (except that we express no opinion in this clause (ii) as to compliance with any disclosure requirement or any prohibition against fraud or misrepresentation), or
(iii) breach, or result in a default under, any existing obligation of the Company or any subsidiary under any indenture, mortgage, deed of trust, loan agreement, credit agreement or other material agreement or instrument filed or included as
an exhibit to the Company’s annual report on Form 10-K for the year ended December 31, 2009. Notwithstanding the foregoing, certain of these agreements contain financial covenants and tests and we have not undertaken or attempted to
independently apply any of those covenants or tests and express no opinion with respect to such covenants and tests. 


  
 -3-










	17.	To our knowledge, no consent, approval, authorization or order of any governmental authority is required for the issuance of the Notes to the Initial Purchasers or the
consummation by the Company of the other transactions contemplated by the Purchase Agreement, except for such consents, approvals, authorizations or orders (i) as have been obtained or made and are in full force and effect, or (ii) the
failure of which to obtain would not, individually or in the aggregate, have a Material Adverse Effect or materially impede the ability of the Company to consummate the transactions contemplated by the Purchase Agreement or perform its obligations
thereunder. 

  

	18.	None of the Company or its Guarantors is, or immediately after the sale of the Notes and the application of the proceeds from such sale (as described in the Pricing
Disclosure Package and the Final Memorandum under the caption “Use of Proceeds”) will be, an “investment company” as such term is defined in the Investment Company Act of 1940, as amended. 


 

	19.	No registration under the Act of the Notes is required for the sale of the Notes to the Initial Purchasers as contemplated by the Purchase Agreement or in connection
with the initial resale of the Notes by the Initial Purchasers in accordance with Section 8 of the Purchase Agreement, and prior to the commencement of the Exchange Offer (as defined in the Registration Rights Agreement) or the effectiveness of
the Shelf Registration Statement (as defined in the Registration Rights Agreement), the Indenture is not required to be qualified under the TIA. We express no opinion, however, as to when or under what circumstances any Notes initially sold by the
Initial Purchasers may be reoffered or resold. 

  

	20.	Assuming the Company uses the proceeds of the Notes solely for the purposes identified in the Pricing Disclosure Package and the Final Memorandum under the caption
“Use of Proceeds,” neither the consummation of the transactions contemplated by the Purchase Agreement nor the sale, issuance, execution or delivery of the Notes will violate Regulation T, U or X of the Board of Governors of the Federal
Reserve System. 


  
 -4-









 We have participated in the preparation of the Pricing Disclosure Package and the Final
Memorandum and have participated in conferences with representatives of the Company, representatives of the independent accountants of the Company, you and your representatives and counsel during which disclosures in the Pricing Disclosure Package
and the Final Memorandum and related matters were discussed, and have reviewed such other documents as we deemed appropriate. 

Based upon our procedures identified above (relying as to factual matters upon the certificates and statements of officers of the
Company), our understanding of applicable law and the experience we have gained in our practice thereunder, we can advise you that nothing has come to our attention that has caused us to conclude that (a) the Pricing Disclosure Package, at the
Time of Execution, contained any untrue statement of a material fact or omitted to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, or
(b) the Final Memorandum, as of its date and as of the date hereof, contained any untrue statement of a material fact or omitted to state any material fact necessary in order to make the statements therein, in the light of the circumstances
under which they were made, not misleading. 
 This letter does not consider or cover, and we do not express any view or belief
with respect to, any financial statements or supporting schedules (or any notes to any such statements) or other financial or statistical information or data included or incorporated by reference in (or omitted from) the Pricing Disclosure Package
or the Final Memorandum. 

  
 -5-









 ANNEX C 
 Form of Winston & Strawn, LLP Opinion 
 We have acted as special
counsel to Great Lakes Dredge & Dock Corporation, a Delaware corporation (the “Company”), in connection with that certain Purchase Agreement dated January 25, 2011 (the “Purchase Agreement”) by and
among the Company, the Company’s subsidiaries listed on Schedule 2 thereto (the “Guarantors”) and the several initial purchasers named in Schedule 1 thereto (the “Initial Purchasers”) for whom you
are acting as representatives (the “Representatives”), relating to the offer and sale of up to $250,000,000 aggregate principal amount of its 7.375% Senior Notes due 2019 (the “Notes”), which are to be issued under
an indenture (the “Indenture”) to be dated as of January 28, 2011 by and among the Company, the Guarantors and Wells Fargo Bank National Association, as Trustee (the “Trustee”). This opinion letter is delivered
to you at the request of the Company pursuant to Section 7(a)(ii) of the Purchase Agreement. Capitalized terms used herein, but not otherwise defined herein, shall have the meanings ascribed to such terms in the Purchase Agreement.

 In rendering the opinions set forth herein, we have examined: (i) the Final Purchase Agreement; (ii) the
Company’s preliminary offering memorandum dated January 18, 2011 (the “Preliminary Offering Memorandum”); (iii) the Pricing Supplement dated January 25, 2011 (the “Pricing Supplement,” together
with the Preliminary Offering Memorandum, the “Pricing Disclosure Package”); and (iv) the indenture under which the Notes are to be issued (the “Indenture”). 

We have also examined originals or copies, certified or otherwise identified to our satisfaction, of such records of the Company and such
agreements, certificates of public officials, certificates of officers or representatives of the Company and others, and such other agreements, documents, instruments, certificates and records, and such matters of law, as we have deemed necessary or
appropriate as a basis for the opinions set forth below. 
 In rendering the opinions expressed below, we have, with your
consent, assumed the legal capacity of all natural persons signing documents and that the signatures of persons signing all documents in connection with which this opinion letter is rendered are genuine, all documents submitted to us as originals or
duplicate originals are authentic and all documents submitted to us as copies, whether certified or not, conform to authentic original documents. We have, with your consent, also assumed and relied upon the accuracy and completeness of all
certificates and other statements, documents, records, financial statements and papers reviewed by us, and the accuracy and completeness of all representations, warranties, confirmations, schedules and exhibits contained in the Purchase Agreement,
the Pricing Disclosure Package, and the Indenture, with respect to the factual matters set forth therein. 







 In making our examination of documents executed by parties, we have assumed that:
(1) such parties are duly organized, validly existing and in good standing under the laws of all jurisdictions where they were organized and where they are conducting their businesses or otherwise required to be so qualified; (2) such
parties have full power and authority to execute, deliver and perform their respective obligations under such documents; (3) all such documents have been duly authorized by such parties; (4) all such documents have been duly executed and
delivered by such parties; and (5) such documents constitute the valid and binding obligations of each such party thereto; enforceable against each such party in accordance with their respective terms. 

As to any facts material to the opinions and beliefs expressed herein that we did not independently establish or verify, we have relied
upon oral or written statements and representations of officers and other representatives of the Company and others. 
 Except
as expressly set forth herein, we have not undertaken any independent investigation, examination or inquiry to determine the existence or absence of any facts (and have not caused the review of any court file or indices), and no inference as to our
knowledge concerning any facts should be drawn as a result of the limited representation undertaken by us. 
 Based upon the
foregoing and subject to the qualifications, limitations and comments stated herein, we are of the opinion that: 
  

	1.	The execution and delivery of the Purchase Agreement by the Company and the consummation of the transactions contemplated thereby by the Company do not violate the
Dredging Act, the Jones Act, the Shipping Act of 1916, the vessel documentation laws set forth in Chapter 121 of Title 46 of the United States Code, or government regulations issued pursuant to such Acts and laws (collectively, the “Maritime
Laws”) applicable to the Company. 

  

	2.	The statements in the Pricing Disclosure Package under the captions “Risk Factors,” “Competitive Strengths,” “Competition,” and
“Government Regulations,” regarding the Jones Act and the Maritime Laws, insofar as such statements constitute summaries of the Maritime Laws, constitute an accurate summary of such matters described therein in all material respects.


 The opinions expressed herein are based upon and are limited to the Maritime Laws, and we express no opinion
with respect to the laws of any state or any other jurisdiction or political subdivision. 
 Our opinions set forth in this
letter are based upon the facts in existence and laws in effect on the date hereof, and we expressly disclaim any obligation to update our opinions herein, regardless of whether changes in such facts or laws come to our attention after the delivery
hereof. 

  
 -2-









 This opinion letter is solely for the benefit of the addressees hereof in connection with
the execution and delivery of the Purchase Agreement. No attorney-client relationship exists or has existed by reason of our preparation, execution and delivery of this opinion letter to any addressee hereof or other person or entity except for the
Company. In permitting reliance hereon by any person or entity other than the Company, we are not acting as counsel for such other person or entity and have not assumed and are not assuming any responsibility to advise such other person or entity
with respect to the adequacy of this opinion letter for its purposes. This opinion letter may not be relied upon in any manner by any other person and may not be disclosed, quoted, filed with a governmental agency or otherwise referred to without
our prior written consent. 

  
 -3-