Willis North America Inc. $600,000,000 6.200% Senior Notes due 2017 Underwriting Agreement

Exhibit 1.1

▇▇▇▇▇▇ North America Inc.

$600,000,000 6.200% Senior Notes due ▇▇▇▇

▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇

March 23, 2007

Citigroup Global Markets Inc.

▇.▇. ▇▇▇▇▇▇ Securities Inc.

▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co. Incorporated

As Representatives of the several Underwriters,

c/o Citigroup Global Markets Inc.

▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

c/o ▇.▇. ▇▇▇▇▇▇ Securities Inc.

▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

c/o Morgan ▇▇▇▇▇▇▇ & Co. Incorporated

▇▇▇▇ ▇▇▇▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

Ladies and Gentlemen:

▇▇▇▇▇▇ North America Inc., a Delaware corporation (the “Issuer”), proposes to sell to the several underwriters named in Schedule I hereto (the “Underwriters”), for whom you (the “Representatives”) are acting as representatives, $600,000,000 aggregate principal amount of its 6.200% Senior Notes due 2017 (the “Securities”) to be guaranteed (the “Guarantees”) on an unsecured unsubordinated basis by ▇▇▇▇▇▇ Group Holdings Limited, a Bermuda company and the parent company of the Issuer (the “Parent”), and TA I Limited, ▇▇ ▇▇ Limited, TA III Limited, Trinity Acquisition Limited, ▇▇ ▇▇ Limited and ▇▇▇▇▇▇ Group Limited (each a company organized under the laws of England and Wales, a “Holdco Guarantor” and, together with the Parent, the “Guarantors”). The Securities will be issued under an indenture dated as of July 1, 2005, to be supplemented by a supplemental indenture (such indenture, as supplemented by such supplemental indenture, the “Indenture”), among the Issuer, the Guarantors and The Bank of New York, Inc. (formerly JPMorgan Chase Bank, N.A.), as trustee (the “Trustee”). To the extent there are no additional Underwriters listed on Schedule I other than you, the term Representatives as used herein shall mean you, as Underwriters, and the terms Representatives and Underwriters shall mean either the

singular or plural as the context requires. The use of the neuter in this Agreement shall include the feminine and masculine wherever appropriate. Except as otherwise specified or as the context otherwise implies, any reference herein to the Registration Statement, the Basic Prospectus, any Preliminary Prospectus or the Final Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 which were filed under the Exchange Act on or before the Effective Date of the Registration Statement or the issue date of the Basic Prospectus, any Preliminary Prospectus or the Final Prospectus, as the case may be; and any reference herein to the terms “amend”, “amendment” or “supplement” with respect to the Registration Statement, the Basic Prospectus, any Preliminary Prospectus or the Final Prospectus shall be deemed to refer to and include the filing of any document under the Exchange Act after the Effective Date of the Registration Statement or the issue date of the Basic Prospectus, any Preliminary Prospectus or the Final Prospectus, as the case may be, deemed to be incorporated therein by reference. Certain terms used herein are defined in Section 19 hereof.

1. Representations and Warranties. Each of the Issuer, the Parent and the Holdco Guarantors jointly and severally represents and warrants to, and agrees with, each Underwriter that:

(i) Each of the Issuer, the Parent and the Holdco Guarantors meets the requirements for use of Form S-3 under the Act and together they have prepared and filed with the Commission an automatic shelf registration statement, as defined in Rule 405 (File Number 333-135176), on Form S-3, including a related Basic Prospectus, for registration under the Act of the offering and sale of the Securities. Such Registration Statement, including any amendments thereto filed prior to the Execution Time, became effective upon filing. The Parent may have filed with the Commission, as part of an amendment to the Registration Statement or pursuant to Rule 424(b), one or more preliminary prospectus supplements relating to the Securities, each of which has previously been furnished to you. The Parent will file with the Commission a final prospectus supplement relating to the Securities in accordance with Rule 424(b). As filed, such final prospectus supplement shall contain all information required by the Act and the rules thereunder, and, except to the extent the Representatives shall agree in writing to a modification, shall be in all substantive respects in the form furnished to you prior to the Execution Time or, to the extent not completed at the Execution Time, shall contain only such specific additional information and other changes (beyond that contained in the Basic Prospectus and any Preliminary Prospectus) as the Issuer has advised you, prior to the Execution Time, will be included or made therein. The Registration Statement, at the Execution Time, meets the requirements set forth in Rule 415(a)(1)(x).

(ii) On each Effective Date, the Registration Statement did or will, and when the Final Prospectus is first filed in accordance with Rule 424(b) and on the Closing Date (as defined herein), the Final

Prospectus (and any supplement thereto) will, comply in all material respects with the applicable requirements of the Act, the Exchange Act and the Trust Indenture Act and the respective rules thereunder; on each Effective Date and at the Execution Time, the Registration Statement did not and will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading; on the Effective Date and on the Closing Date the Indenture did or will comply in all material respects with the applicable requirements of the Trust Indenture Act and the rules thereunder; and, on the date of any filing pursuant to Rule 424(b) and on the Closing Date, the Final Prospectus (together with any supplement thereto) will not include any untrue statement of a material fact or omit to state a 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 the Issuer, the Parent and the Holdco Guarantors make no representations or warranties as to the information contained in or omitted from the Registration Statement, or the Final Prospectus (or any supplement thereto) in reliance upon and in conformity with information furnished in writing to the Parent by or on behalf of any Underwriter through the Representatives specifically for inclusion in the Registration Statement or the Final Prospectus (or any supplement thereto), it being understood and agreed that the only such information furnished by or on behalf of any Underwriters consists of the information described as such in Section 8(b) hereof.

(iii) (A) The Disclosure Package, when taken together as a whole, and (B) each electronic roadshow when taken together as a whole with the Disclosure Package, do 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. The preceding sentence does not apply to statements in or omissions from the Disclosure Package based upon and in conformity with written information furnished to the Parent by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8(b) hereof.

(iv) (A) At the time of filing the Registration Statement, (B) at the time of the most recent amendment thereto for the purposes of complying with Section 10(a)(3) of the Act (whether such amendment was by post-effective amendment, incorporated report filed pursuant to Sections 13 or 15(d) of the Exchange Act or form of prospectus), (C) at the time the Issuer, the Parent, any Holdco Guarantor or any person acting on their behalf (within the meaning, for this clause only, of Rule 163(c)) made any offer relating to the Securities in reliance on the exemption in

Rule 163, and (D) at the Execution Time (with such date being used as the determination date for purposes of this clause (D)), the Issuer, the Parent and each Holdco Guarantor was or is (as the case may be) a “well-known seasoned issuer” as defined in Rule 405. The Parent agrees to pay the fees required by the Commission relating to the Securities within the time required by Rule 456(b)(1) without regard to the proviso therein and otherwise in accordance with Rules 456(b) and 457(r).

(v) (A) At the earliest time after the filing of the Registration Statement that the Parent, the Issuer, any Holdco Guarantor or another offering participant made a bona fide offer (within the meaning of Rule 164(h)(2)) of the Securities and (B) as of the Execution Time (with such date being used as the determination date for purposes of this clause (B)), none of the Issuer, the Parent of any Holdco Guarantor was or is an Ineligible Issuer (as defined in Rule 405), without taking account of any determination by the Commission pursuant to Rule 405 that it is not necessary that the Issuer be considered an Ineligible Issuer.

(vi) Each Issuer Free Writing Prospectus and the final term sheet prepared and filed pursuant to Section 5(ii) hereof does not include any information that conflicts with the information contained in the Registration Statement, including any document incorporated therein and any prospectus supplement deemed to be a part thereof that has not been superseded or modified. The foregoing sentence does not apply to statements in or omissions from any Issuer Free Writing Prospectus based upon and in conformity with written information furnished to the Parent by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8(b) hereof.

(vii) Each of the Issuer, the Parent and the Holdco Guarantors, and each of their respective subsidiaries (other than Sovereign Marine & General Insurance Company Limited and its subsidiaries) has been duly organized and is validly existing and in good standing under the laws of the jurisdiction in which it is organized with requisite power and authority to own or lease, as the case may be, and to operate its properties and conduct its business as described in the Disclosure Package and the Final Prospectus, and is duly qualified to do business and is in good standing under the laws of each jurisdiction which requires such qualification, except where the failure to be so qualified would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on the condition (financial or otherwise), business prospects or results of operations of the Parent and its subsidiaries, taken as a whole (a “Material Adverse Effect”).

(viii) All the outstanding common equity interests in each of the Issuer, the Guarantors, each of their respective subsidiaries and each of the Parent’s other subsidiaries have been duly authorized and validly issued and are fully paid and nonassessable, and, except as otherwise set forth on Schedule II, all outstanding common equity interests in each such subsidiary are owned by the Issuer, the Guarantors or the Parent, as applicable, either directly or indirectly and, except as set forth in the Disclosure Package and the Final Prospectus, are owned free and clear of any perfected security interest or any other security interests, claims, liens or encumbrances.

(ix) The Indenture has been duly authorized, executed and delivered by each of the Issuer, the Parent and the Holdco Guarantors, has been duly qualified under the Trust Indenture Act, and constitutes a legal, valid and binding instrument enforceable against the Issuer, the Parent and the Holdco Guarantors in accordance with its terms (subject, as to the enforcement of remedies, to applicable bankruptcy, reorganization, insolvency, moratorium or other laws affecting creditors’ rights generally from time to time in effect and to general principles of equity, including, without limitation, concepts of materiality, reasonableness, good faith and fair dealing, regardless of whether considered in a proceeding in equity or at law); the Securities have been duly authorized and, when executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters pursuant to this Agreement, will constitute legal, valid and binding obligations of the Issuer, the Parent and the Holdco Guarantors entitled to the benefits of the Indenture (subject, as to the enforcement of remedies, to applicable bankruptcy, reorganization, insolvency, moratorium or other laws affecting creditors’ rights generally from time to time in effect and to general principles of equity, including, without limitation, concepts of materiality, reasonableness, good faith and fair dealing, regardless of whether considered in a proceeding in equity or at law); and the Guarantee of each Guarantor has been duly authorized and constitutes a legal, valid and binding obligation of such Guarantor enforceable against such Guarantor in accordance with its terms (subject, as to the enforcement of remedies, to applicable bankruptcy, reorganization, insolvency, moratorium or other laws affecting creditors’ rights generally from time to time in effect and to general principles of equity, including, without limitation, concepts of materiality, reasonableness, good faith and fair dealing, regardless of whether considered in a proceeding in equity or at law).

(x) The Securities conform in all material respects to the respective descriptions thereof contained in the Disclosure Package and the Final Prospectus.

(xi) The descriptions in the Disclosure Package and the Final Prospectus (exclusive of any supplement thereto) of statutes, and other

laws, rules and regulations, legal and governmental proceedings and contracts and other documents are accurate and fairly present in all material respects the information that is required to be described therein under the Act; and there is no franchise, contract or other document of a character required to be described in the Registration Statement or the Final Prospectus, or to be filed as an exhibit thereto, which is not described or filed as required.

(xii) This Agreement has been duly authorized, executed and delivered by the Issuer, the Parent and the Holdco Guarantors.

(xiii) Each of the Issuer, the Parent and the Holdco Guarantors is not and, after giving effect to the offering and sale of the Securities as described in the Disclosure Package and the Final Prospectus, will not be an “investment company” as defined in the Investment Company Act of 1940, as amended.

(xiv) No consent, approval, authorization, filing, order, registration or qualification of or with any court or governmental agency or body is required in connection with the transactions contemplated herein, except (1) such as have been obtained under the Act; and (2) such as may be required under the state securities laws (“Blue Sky laws”) of any jurisdiction in connection with the purchase and distribution of the Securities by the Underwriters in the manner contemplated herein and in the Disclosure Package and the Final Prospectus.

(xv) None of the execution and delivery of this Agreement, the sale of the Securities, the consummation of any other of the transactions herein contemplated or the fulfillment of the terms hereof will conflict with, result in a breach or violation of, or constitute a default under, or result in the imposition of any lien, charge or encumbrance upon any property or assets of the Parent or any of its subsidiaries pursuant to (i) the Memorandum of Association or Bye-laws of the Parent or the charter or by-laws (or similar organizational documents) of its subsidiaries, (ii) the terms of any indenture, contract, lease, mortgage, deed of trust, note agreement, loan agreement, partnership agreement, joint venture agreement or other agreement or instrument to which the Parent or any of its subsidiaries is a party or is bound or to which its or their properties or assets are subject (collectively, “Contracts”) or (iii) any statute, law, rule, regulation, judgment, order or decree applicable to the Parent or any of its subsidiaries of any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Parent or any of its subsidiaries or any of its or their properties or assets, except in the case of clauses (ii) and (iii) for such conflicts, breaches, violations or defaults that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xvi) The consolidated historical financial statements of the Parent and its consolidated subsidiaries, and the related notes thereto, included in the Disclosure Package, the Final Prospectus and the Registration Statement present fairly in all material respects the consolidated financial condition, results of operations and cash flows of the Parent and its consolidated subsidiaries as of the dates and for the periods indicated, comply as to form in all material respects with the applicable accounting requirements of the Act and have been prepared in conformity with United States generally accepted accounting principles applied on a consistent basis throughout the periods involved (except as otherwise noted therein). The selected financial data set forth under the captions “Prospectus Supplement Summary - Summary Consolidated Financial Data” in the Preliminary Prospectus, the Final Prospectus and the Registration Statement fairly present in all material respects, on the basis stated in the Preliminary Prospectus, the Final Prospectus and the Registration Statement, the information included therein. The selected financial data set forth under the caption “Selected Historical Consolidated Financial Data” in the Parent’s Annual Report on Form 10-K for the year ended December 31, 2006 (the “Annual Report”) fairly present in all material respects, on the basis stated in the Annual Report, the information included therein.

(xvii) Except as disclosed in the Disclosure Package and the Final Prospectus (exclusive of any supplement thereto), there is (i) no action, suit or proceeding before or by any court, arbitrator or governmental agency, body or official, domestic or foreign, now pending, or to the knowledge of the Parent or any of its subsidiaries threatened or contemplated, to which the Parent or any of its subsidiaries is or may be a party or to which the business, property or assets of the Parent or any of its subsidiaries is or may be subject, (ii) to the knowledge of the Parent or any of its subsidiaries, no statute, rule, regulation or order that has been enacted, adopted or issued by any governmental agency or that has been proposed by any governmental body, and (iii) no injunction, restraining order or order of any nature by a court of competent jurisdiction to which the Parent or any of its subsidiaries is or may be subject, that has been issued and is outstanding that, in the case of clauses (i), (ii) or (iii) above (x) would reasonably be expected to have a Material Adverse Effect or (y) seeks to restrain, enjoin, interfere with, or would reasonably be expected to adversely affect in any material respect, the performance of this Agreement or any of the transactions contemplated by this Agreement; and the Parent and its subsidiaries have complied with any and all requests by any securities authority in any jurisdiction for additional information to be included in the Disclosure Package and the Final Prospectus.

(xviii) None of the Issuer, the Parent and the Holdco Guarantors is (i) in violation of its charter or by-laws (or similar organizational documents), (ii) in breach or violation of any statute, judgment, decree, order, rule or regulation applicable to the Issuer, the Parent and the Holdco Guarantors or any of their properties or assets or (iii) in breach or default in the performance of any Contract, except, in the case of clauses (i), (ii) and (iii) for any such violation, breach or default that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xix) Deloitte & Touche LLP, who have certified certain financial statements of the Parent and its consolidated subsidiaries and delivered their report with respect to certain audited consolidated financial statements included in the Disclosure Package and the Final Prospectus, are independent public accountants with respect to the Parent within the meaning of the Act and the applicable rules and regulations thereunder.

(xx) No stamp duty, stock exchange tax, value-added tax, withholding or any other similar duty or tax is payable in the United States, the United Kingdom, Bermuda or any other jurisdiction in which the Parent or any of its subsidiaries is organized or engaged in business for tax purposes or, in each case, any political subdivision thereof or any authority having power to tax, in connection with the execution or delivery of this Agreement by the Issuer, the Parent and the Holdco Guarantors or the sale or delivery of the Securities to the Underwriters or the initial resales thereof by the Underwriters in the manner contemplated by this Agreement, the Disclosure Package and the Final Prospectus.

(xxi) Each of the Parent and its subsidiaries has filed all necessary federal, state and foreign (including, without limitation, United Kingdom and Bermuda) income and franchise tax returns required to be filed to the date hereof, except where the failure to so file such returns would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, and has paid all material taxes shown as due thereon; and other than tax deficiencies which the Parent or any such subsidiary is contesting in good faith and for which the Parent or any such subsidiary has provided adequate reserves, there is no tax deficiency that has been asserted against the Parent or any such subsidiary that would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect.

(xxii) Each of the Parent and its subsidiaries has good and marketable title, free and clear of all liens, claims, encumbrances and restrictions, to all property and assets described in the Disclosure Package and the Final Prospectus as being owned by it and good title to all leasehold estates in the real property described in the Disclosure Package and the Final Prospectus as being leased by it except for (i) liens for taxes not yet due and payable, (ii) liens, claims, encumbrances and restrictions that do not materially interfere with the use made and proposed to be made of such properties (including, without limitation, purchase money mortgages), and (iii) to the extent the failure to have such title or the existence of such liens, claims, encumbrances and restrictions would not reasonably be expected to have a Material Adverse Effect.

(xxiii) Neither the Parent nor any of its subsidiaries is involved in any labor dispute nor, to the best of the knowledge of the Parent and its subsidiaries, is any labor dispute threatened which, if such dispute were to occur, would reasonably be expected to have a Material Adverse Effect.

(xxiv) The Parent and each of its subsidiaries maintain insurance insuring against such losses and risks as the Parent reasonably believes is adequate to protect the Parent and each of its subsidiaries and their respective businesses, except where the failure to maintain such insurance would not reasonably be expected to have a Material Adverse Effect; the Parent and its subsidiaries are in compliance with the terms of such policies and instruments in all material respects; and there are no claims by the Parent or any of its subsidiaries under any such policy or instrument as to which any insurance company is denying liability or defending under a reservation of rights clause that would reasonably be expected to have a Material Adverse Effect; none of the Parent or any of its subsidiaries has been refused any insurance coverage sought or applied for; and none of the Parent or any of its subsidiaries has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not reasonably be expected to have a Material Adverse Effect whether or not arising from transactions in the ordinary course of business, except as set forth in the Disclosure Package and the Final Prospectus (exclusive of any supplement thereto).

(xxv) Under the current laws and regulations of Bermuda, all payments made on the Securities may be paid by the Parent to the holder thereof in United States dollars that may be freely transferred out of Bermuda and all such payments made to holders thereof who are non-residents of Bermuda will not be subject to income, withholding or other taxes under the laws or regulations of Bermuda and will otherwise be free of any other tax, duty, withholding or deduction in Bermuda and without the necessity of obtaining any governmental authorization in Bermuda.

(xxvi) Under the current laws and regulations of England and Wales, all payments made on the Securities may be paid by any Holdco Guarantor to the holder thereof in United States dollars that may be freely transferred out of England and Wales and all such payments made to holders thereof who are non-residents of England and Wales will not be subject to income, withholding or other taxes under the laws or regulations of England and Wales and will otherwise be free of any other tax, duty, withholding or deduction in England and Wales and without the necessity of obtaining any governmental authorization in England and Wales.

(xxvii) Each of the Parent and its subsidiaries possesses all licenses, permits, certificates, consents, orders, approvals and other authorizations from, and has made all declarations and filings with, all appropriate federal, state, local, foreign and other governmental authorities, all 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 their respective properties and to carry on the business of the Parent and its subsidiaries as now conducted as set forth in the Disclosure Package and the Final Prospectus, the lack of which would, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect (“Permits”); each of the Parent and its subsidiaries has fulfilled and performed all of its obligations with respect to such Permits and, to the best knowledge of the Parent, no event has occurred which allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other impairment of the rights of the holder of any such Permit, except where the failure to fulfill or perform such obligations or such impairment, would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and none of the Parent or its subsidiaries has not received any notice of any proceeding relating to revocation or modification of any such Permit except where such revocation or modification would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xxviii) The Parent and each of its subsidiaries maintain a system of internal control over financial reporting sufficient to provide reasonable assurance that (i) the Parent’s financial records, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Parent; (ii) transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Parent are being made only in accordance with authorizations of management and directors of the Parent; and (iii) unauthorized acquisition, use or disposition of the Parent’s assets that could have a material effect on the Parent’s financial statements are detected in a timely manner. The Parent maintains disclosure controls and procedures (as such term is defined in Rule 13a-15 under the Exchange Act) that are effective in ensuring that information required to be disclosed by the Parent in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the Commission, including, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Parent in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Parent’s management, including its principal executive officer or officers and its principal financial officer or officers, as appropriate to allow timely decisions regarding required disclosure.

(xxix) The Issuer, the Parent and the Holdco Guarantors have not taken, directly or indirectly, any action designed to or that would constitute or that might reasonably be expected to cause or result in, under the Exchange Act or otherwise, stabilization or manipulation of the price of any security issued by any of them to facilitate the sale or resale of the Securities.

(xxx) Except as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, to the knowledge of the Parent and its subsidiaries, the Parent and its subsidiaries are in compliance with all applicable existing federal, state, local and foreign laws and regulations relating to the protection of human health or the environment or imposing liability or requiring standards of conduct concerning any Hazardous Materials (“Environmental Laws”). The term “Hazardous Material” means (a) any “hazardous substance” as defined by the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended, (b) any “hazardous waste” as defined by the Resource Conservation and Recovery Act, as amended, (c) any petroleum or petroleum product, (d) any polychlorinated biphenyl and (e) any pollutant or contaminant or hazardous, dangerous or toxic chemical, material, waste or substance regulated under or within the meaning of any other Environmental Law. None of the Parent or its subsidiaries has received any written notice and there is no pending or, to the best knowledge of the Parent and its subsidiaries, threatened action, suit or proceeding before or by any court or governmental agency or body alleging liability (including, without limitation, alleged or potential liability for investigatory costs, cleanup costs, governmental response costs, natural resources damages, property damages, personal injuries, or penalties) of the Parent or any of its subsidiaries arising out of, based on or resulting from (i) the presence or release into the environment of any Hazardous Material at any location owned by the Parent or any subsidiary of the Parent, or (ii) any violation or alleged violation of any Environmental Law, in either case (x) which alleged or potential liability would be required to be described in the Preliminary Prospectus, the Final Prospectus or the Registration Statement under the Act, or (y) which alleged or potential liability would, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xxxi) None of the Parent or its 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 which is subject to the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), to which it makes or ever has made a contribution and in which any employee of it is or has ever been a participant. With respect to such plans, each of the Parent and its subsidiaries is in compliance in all material respects with all applicable provisions of ERISA. In addition, the Parent has caused (i) all pension schemes maintained by or for the benefit of any of its subsidiaries organized under the laws of England and Wales or any of its employees to be maintained and operated in all material respects in accordance with all applicable laws from time to time and (ii) all such pension schemes to be funded in accordance with the governing provisions of such schemes, except to the extent failure to do so would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xxxii) The subsidiaries listed on Schedule III attached hereto are the only significant subsidiaries of the Parent as defined by Rule 1-02 of Regulation S-X (the “Subsidiaries”).

(xxxiii) The Parent and each of its subsidiaries own or possess adequate licenses or other rights to use all patents, patent applications, trademarks, service marks, trade names, trademark registrations, service ▇▇▇▇ registrations, copyrights, licenses and know-how (including, without limitation, trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures) and copyrights necessary to conduct the business described in the Disclosure Package and the Final Prospectus, except where the failure to own or possess or have the ability to acquire any of the foregoing would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, and none of the Parent or its subsidiaries has received any notice of infringement of or conflict with asserted rights of others with respect to any patents, trademarks, service marks, trade names or copyrights which, if such assertion of infringement or conflict were sustained, would individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(xxxiv) None of the Issuer, the Parent or the Holdco Guarantors or their respective properties or assets has any immunity from the jurisdiction of any court or from any legal process (whether through service or notice, attachment prior to judgment, attachment in aid of execution or otherwise) under the laws of the United States, England and Wales or Bermuda.

(xxxv) To ensure the legality, validity, enforceability and admissibility into evidence of each of this Agreement, the Securities and any other document to be furnished hereunder in Bermuda, it is not necessary that this Agreement, the Securities or such other document be filed or recorded with any court or other authority in Bermuda or any stamp or similar tax be paid in Bermuda on or in respect of this Agreement, the Securities or any such other document except that the Final Prospectus is required to be and has been filed with the Registrar of Companies in Bermuda pursuant to Part III of the Companies ▇▇▇ ▇▇▇▇ of Bermuda.

(xxxvi) The Parent and the Holdco Guarantors have duly and irrevocably appointed ▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇ Group Holdings Limited, ▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇, as its agent to receive service of process with respect to actions arising out of or in connection with (i) this Agreement; and (ii) violations of United States federal securities laws relating to offers and sales of the Securities.

(xxxvii) Under Bermuda law and the law of England and Wales the Underwriters will not be deemed to be resident, domiciled, carrying on any commercial activity in Bermuda or England and Wales or subject to any taxation in Bermuda or England and Wales by reason only of the entry into, performance or enforcement of this Agreement to which they are a party or the transactions contemplated hereby. It is not necessary under Bermuda law or the law of England and Wales that the Underwriters be authorized, licensed, qualified or otherwise entitled to carry on business in Bermuda or England and Wales for their execution, delivery, performance or enforcement of this Agreement.

(xxxviii) A final and conclusive judgment of a court located outside Bermuda against the Parent based upon this Agreement, the Securities or the Indenture, including the Guarantee of the Parent (other than a court of jurisdiction to which The Judgments (Reciprocal Enforcement) Act, 1958 applies, and it does not apply to the federal and state courts of the Borough of Manhattan in New York City) under which a sum of money is payable (not being a sum payable in respect of taxes or other charges of a like nature, in respect of a fine or other penalty, or in respect of multiple damages as defined in The Protection of Trading Interests Act 1981), may be the subject of enforcement proceedings in the Supreme Court of Bermuda under the common law doctrine of obligation by action on the debt evidenced by the judgment of such court located outside Bermuda; provided that:

(1) the court which gave the judgment was competent to hear the action in accordance with private international law principles as applied in Bermuda; and

(2) the judgment is not contrary to public policy in Bermuda, has not been obtained by fraud or in proceedings contrary to natural justice and is not based on an error in Bermuda law.

(xxxix) A judgment rendered by a court of the State of New York or a Federal court of the United States in relation to the Underwriting Agreement, the Securities or the Indenture, including the Guarantee of any Holdco Guarantor, for a final and conclusive judgment for debt or a definite sum of money will be recognized and enforced in England provided that the party against whom the judgment was given properly submitted to the jurisdiction of the courts of the State of New York or a Federal court of the United States (which had jurisdiction under its own laws) and none of the following circumstances apply:

(1) the judgment was procured by fraud;

(2) the judgment was given contrary to the rules of natural or substantial justice, for example where a defendant is deprived of notice of, or an adequate opportunity to take part in, the proceedings;

(3) recognition of the judgment would be contrary to English public policy;

(4) the judgment conflicts with an English judgment or a foreign judgment given earlier in time;

(5) enforcement of the judgment would involve the enforcement of a foreign penal or revenue or other public law;

(6) enforcement of the judgment would contravene the Protection of Trading Interests Act of 1980, section 5 of which precludes, among other things, the enforcement in the United Kingdom of any judgment given by a court of an overseas country which is a judgment for multiple damages which exceed the compensatory element of the judgment award; or

(7) recognition or enforcement thereof would be contrary to the terms of the Administration of Justice ▇▇▇ ▇▇▇▇, the Foreign Judgments (Reciprocal Enforcement) ▇▇▇ ▇▇▇▇ or the Conventions.

Any certificate signed by any officer of the Issuer, of the Parent or of any Holdco Guarantor and delivered to the Representatives or counsel for the Underwriters in connection with the offering of the Securities shall be deemed a representation and warranty by the Issuer, the Parent or the Holdco Guarantor, as the case may be, as to matters covered thereby, to each Underwriter.

2. Purchase and Sale. Subject to the terms and conditions and in reliance upon the representations and warranties herein set forth, the Issuer agrees to, and the Guarantors agree to cause the Issuer to, sell to each Underwriter, and each Underwriter agrees, severally and not jointly, to purchase from the Issuer, at a purchase price of 99.151% of the principal amount of the Securities plus accrued interest from March 28, 2007 to the date of delivery, the amount of the Securities set forth opposite such Underwriter’s name in Schedule I hereto.

3. Delivery and Payment. Delivery of and payment for the Securities shall be made at 10:00 AM, New York City time, on March 28, 2007, or at such time on such later date not more than three Business Days after the foregoing date as the Representatives shall designate, which date and time may be postponed by agreement between the Representatives, the Issuer, the Parent and the Holdco Guarantors or as provided in Section 9 hereof (such date and time of delivery and payment for the Securities being herein called the “Closing Date”). Delivery of the Securities shall be made to the Representatives for the respective accounts of the several Underwriters against payment by the several Underwriters through the Representatives of the aggregate purchase price thereof to or upon the order of the Issuer by wire transfer payable in same-day funds to an account specified by the Issuer. Delivery of the Securities shall be made through the facilities of The Depository Trust Company unless the Representatives shall otherwise instruct.

4. Offering by Underwriters. It is understood that the several Underwriters propose to offer the Securities for sale to the public as set forth in the Final Prospectus.

5. Agreements. Each of the Issuer, the Parent and the Holdco Guarantors jointly and severally agree with the several Underwriters that:

(i) Prior to the termination of the offering of the Securities, the Issuer or the Parent will not file any amendment of the Registration Statement or supplement (including the Final Prospectus or any Preliminary Prospectus) to the Basic Prospectus unless the Parent has furnished you a copy for your review prior to filing and will not file any such proposed amendment or supplement to which you reasonably object. The Parent will cause the Final Prospectus, properly completed, and any supplement thereto to be filed with the Commission pursuant to the applicable paragraph of Rule 424(b) within the time period prescribed and will provide evidence satisfactory to the Representatives of such timely filing. The Parent will promptly advise the Representatives (1) when the Final Prospectus, and any supplement thereto, shall have been filed (if required) with the Commission pursuant to Rule 424(b), (2) when, prior to termination of the offering of the Securities, any amendment to the Registration Statement shall have been filed or become effective, (3) of any request by the Commission or its staff for any amendment of the Registration Statement, or for any supplement to the Final Prospectus or for any additional information, (4) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any notice objecting to its use or the institution or threatening of any proceeding for that purpose and (5) of the receipt by the Parent of any notification with respect to the suspension of the qualification of the Securities for sale in any jurisdiction or the institution or threatening of any proceeding for such purpose. The Parent will use its best efforts to prevent the issuance of any such stop order or the occurrence of any such suspension or objection to the use of the Registration Statement and, upon such issuance, occurrence or notice of objection, to obtain as soon as possible the withdrawal of such stop order or relief from such occurrence or objection, including, if necessary, by filing an amendment to the Registration Statement or a new registration statement and using its best efforts to have such amendment or new registration statement declared effective as soon as practicable.

(ii) To prepare a final term sheet, containing solely a description of final terms of the Securities and the offering thereof, in a form approved by you and to file such term sheet pursuant to Rule 433(d) within the time required by such Rule.

(iii) If, at any time prior to the filing of a final prospectus pursuant to Rule 424(b), any event occurs as a result of which the Disclosure Package would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein in the light of the circumstances under which they were made at such time not misleading, the Parent will (i) notify promptly the Representatives so that any use of the Disclosure Package may cease until it is amended or supplemented; (ii) amend or supplement the Disclosure Package to correct such statement or omission; and (iii) supply any amendment or supplement to you in such quantities as you may reasonably request.

(iv) If, at any time when the Final Prospectus relating to the Securities is required to be delivered under the Act (including in circumstances where such requirement may be satisfied pursuant to Rule 172), any event occurs as a result of which the Final Prospectus as then supplemented would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein in the light of the circumstances under which they were made at such time not misleading, or if it shall be necessary to amend the Registration Statement, file a new registration statement or supplement the Final Prospectus to comply with the Act or the Exchange Act or the respective rules thereunder, including in connection with use or delivery of the Final Prospectus, the Parent will (1) promptly notify the Representatives of any such event, (2) as soon as practicable, prepare and file with the Commission, subject to the second sentence of paragraph (i) of this Section 5, an amendment or supplement or new registration statement which will correct such statement or omission or effect such compliance; (3) use its best efforts to have any amendment to the Registration Statement or new registration statement declared effective as soon as practicable in order to avoid any disruption in use of the Final Prospectus; and (4) promptly supply any supplemented Final Prospectus to you in such quantities as you may reasonably request.

(v) As soon as practicable, the Parent will make generally available to its security holders and to the Representatives an earnings statement or statements of the Parent and its subsidiaries which will satisfy the provisions of Section 11(a) of the Act and Rule 158.

(vi) The Parent will furnish to the Representatives and counsel for the Underwriters, without charge, signed copies of the Registration Statement (including exhibits thereto) and to each other Underwriter a copy of the Registration Statement (without exhibits thereto) and, so long as delivery of a prospectus by an Underwriter or dealer may be required by the Act (including in circumstances where such requirement may be satisfied pursuant to Rule 172), as many copies of each Preliminary Prospectus, the Final Prospectus and each Issuer Free Writing Prospectus and any supplement thereto as the Representatives may reasonably request.

(vii) The Issuer, the Parent and each Holdco Guarantor will cooperate with you and counsel for the Underwriters in connection with the qualification of the Securities for sale under the laws of such jurisdictions as the Representatives may designate and will maintain such qualifications in effect so long as required for the distribution of the Securities; provided that in no event shall the Issuer, the Parent or any Holdco Guarantor be obligated to qualify to do business in any jurisdiction where it is not now so qualified or to take any action that would subject it to service of process in suits, other than those arising out of the offering or sale of the Securities, or taxation in any jurisdiction where it is not now so subject.

(viii) The Issuer, the Parent and the Holdco Guarantors will not take, directly or indirectly, any action designed to or that would constitute or that might reasonably be expected to cause or result in, under the Exchange Act or otherwise, stabilization or manipulation of the price of any security issued by any of them to facilitate the sale or resale of the Securities.

(ix) The Parent agrees to pay the costs and expenses relating to the following matters: (1) the preparation, printing or reproduction and filing with the Commission of the Registration Statement (including financial statements and exhibits thereto), each Free Writing Prospectus, each Preliminary Prospectus, the Final Prospectus, and each amendment or supplement to any of them; (2) the printing (or reproduction) and delivery (including postage, air freight charges and charges for counting and packaging) of such copies of the Registration Statement, each Free Writing Prospectus, each Preliminary Prospectus, the Final Prospectus,

and all amendments or supplements to any of them, as may, in each case, be reasonably requested for use in connection with the offering and sale of the Securities; (3) the preparation, printing, authentication, issuance and delivery of certificates for the Securities; (4) the printing (or reproduction) and delivery of this Agreement, any blue sky memorandum and all other agreements or documents printed (or reproduced) and delivered in connection with the offering of the Securities; (5) the registration of the Securities under the Exchange Act; (6) any registration or qualification of the Securities for offer and sale under the securities or blue sky laws of the several states (including filing fees and the reasonable fees and expenses of one counsel for the Underwriters relating to such registration and qualification); (7) any filings required to be made with the National Association of Securities Dealers, Inc. (including filing fees and the reasonable fees and expenses of one counsel for the Underwriters relating to such filings); (8) one-half of any aircraft costs; and all other transportation and other expenses incurred by or on behalf of Parent representatives in connection with presentations to prospective purchasers of the Securities; (9) the fees and expenses of the Parent’s accountants and the fees and expenses of counsel (including local and special counsel) for the Issuer, the Parent and the Holdco Guarantors; and (10) all other costs and expenses incurred by the Issuer, the Parent and the Holdco Guarantors that are incidental to the performance by the Issuer, the Parent and the Holdco Guarantors of their respective obligations hereunder.

(x) The Issuer, the Parent and each Holdco Guarantor agrees that, unless it has obtained or will obtain the prior written consent of the Representatives, and each Underwriter, severally and not jointly, agrees with the Parent that, unless it has obtained or will obtain, as the case may be, the prior written consent of the Parent, it has not made and will not make any offer relating to the Securities that would constitute an Issuer Free Writing Prospectus or that would otherwise constitute a “free writing prospectus” (as defined in Rule 405) required to be filed by the Issuer with the Commission or retained by the Issuer under Rule 433, other than the information contained in the final term sheet prepared and filed pursuant to Section 5(ii) hereof; provided that the prior written consent of the parties hereto shall be deemed to have been given in respect of the Free Writing Prospectuses included in Schedule IV hereto. Any such free writing prospectus consented to by the Representatives or the Parent is hereinafter referred to as a “Permitted Free Writing Prospectus.” The Issuer, the Parent and each Holdco Guarantor agrees that (x) it has treated and will treat, as the case may be, each Permitted Free Writing Prospectus as an Issuer Free Writing Prospectus and (y) it has complied and will comply, as the case may be, with the requirements of Rules 164 and 433 applicable to any Permitted Free Writing Prospectus, including in respect of timely filing with the Commission, legending and record keeping.

6. Conditions to the Obligations of the Underwriters. The obligations of the Underwriters to purchase the Securities shall be subject to the accuracy of the representations and warranties on the part of the Issuer, the Parent and the Holdco Guarantors contained herein as of the Execution Time and the Closing Date, to the accuracy of the statements of the Issuer, the Parent and the Holdco Guarantors made in any certificates pursuant to the provisions hereof, to the performance by the Issuer, the Parent and the Holdco Guarantors of their respective obligations hereunder and to the following additional conditions:

(a) The Final Prospectus, and any supplement thereto, shall have been filed in the manner and within the time period required by Rule 424(b); the final term sheet contemplated by Section 5(ii) hereof, and any other material required to be filed by the Issuer pursuant to Rule 433(d) under the Act, shall have been filed with the Commission within the applicable time periods prescribed for such filings by Rule 433; and no stop order suspending the effectiveness of the Registration Statement or any notice objecting to its use shall have been issued and no proceedings for that purpose shall have been instituted or threatened.

(b) The Issuer shall have requested and caused ▇▇▇▇▇▇▇▇ & ▇▇▇▇▇▇▇▇ LLP, U.S. counsel for the Parent, to have furnished to the Representatives their opinion and letter, dated the Closing Date and addressed to the Representatives, in the forms set forth on Annexes A-I and A-II hereto.

(c) The Parent shall have requested and caused ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Bailhache, Bermuda counsel for the Parent, to have furnished to the Representatives their opinion, dated the Closing Date and addressed to the Representatives, in the form set forth on Annex B hereto.

(d) ▇▇▇▇▇▇ Goodinge, Esq., the Parent’s Assistant General Counsel, shall have furnished to the Representatives his opinion, dated the Closing Date and addressed to the Representatives, in the form set forth on Annex C hereto.

(e) ▇▇▇▇ ▇. ▇▇▇▇▇▇▇, the Issuer’s General Counsel, shall have furnished to the Representatives her opinion, dated the Closing Date and addressed to the Representatives, in the form set forth on Annex D hereto.

(f) The Representatives shall have received from Cravath, Swaine & ▇▇▇▇▇ LLP, counsel for the Underwriters, such opinion or opinions, dated the Closing Date and addressed to the Representatives, with respect to the sale of the Securities, the Registration Statement, the Disclosure Package, the Final Prospectus (together with any supplement thereto) and other related matters as the Representatives may reasonably require, and the Issuer, the Parent and the Holdco Guarantors shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters.

(g) The Parent shall have furnished to the Representatives a certificate signed by ▇▇▇▇▇▇▇ ▇▇▇▇▇ and ▇▇▇▇ ▇. ▇▇▇▇▇▇▇, Esq., dated the Closing Date, to the effect that the signers of such certificate have carefully examined the Registration Statement, the Disclosure Package, the Final Prospectus, any supplements to the Final Prospectus and this Agreement and that:

(i) the representations and warranties of the Parent, the Issuer and the Holdco Guarantors in this Agreement are true and correct on and as of the Closing Date with the same effect as if made on the Closing Date and the Parent, the Issuer and the Holdco Guarantors have complied with all the agreements and satisfied all the conditions on its part to be performed or satisfied at or prior to the Closing Date;

(ii) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or, to the knowledge of the Parent or the Issuer, threatened; and

(iii) since the date of the most recent financial statements included in the Final Prospectus (exclusive of any supplement thereto), there has been no event or development that has had, or that would reasonably be expected to have, a Material Adverse Effect.

(h) The Parent shall have requested and caused Deloitte & Touche LLP to have furnished to the Representatives, at the Execution Time and at the Closing Date, letters, dated respectively as of the Execution Time and as of the Closing Date, in form and substance satisfactory to the Representatives, confirming that they are independent accountants within the meaning of the Act and the applicable rules and regulations adopted by the Commission thereunder, and stating in effect that:

(i) in their opinion the audited consolidated financial statements and financial statement schedule included or incorporated by reference in the Registration Statement, the Preliminary Prospectus and the Final Prospectus and reported on by them comply as to form in all material respects with the applicable accounting requirements of the Act and the Exchange Act and the related rules and regulations adopted by the Commission;

(ii) on the basis of a reading of the latest unaudited financial statements made available by the Parent and its subsidiaries; carrying out certain specified procedures (but not an examination in accordance with generally accepted auditing standards) which would not necessarily reveal matters of significance with respect to the comments set forth in such letter; a reading of the minutes of the meetings of the stockholders, directors and the audit committees of the Parent and the Subsidiaries; and inquiries of certain officials of the Parent who have responsibility for financial and accounting matters of the Parent and its subsidiaries as to transactions and events subsequent to December 31, 2006;

(1) nothing came to their attention which caused them to believe that any unaudited financial statements included or incorporated by reference in the Registration Statement, the Preliminary Prospectus and the Final Prospectus do not comply as to form in all material respects with applicable accounting requirements of the Act and with the related rules and regulations adopted by the Commission with respect to financial statements included or incorporated by reference in quarterly reports on Form 10-Q under the Exchange Act; and said unaudited financial statements are not in conformity with generally accepted accounting principles applied on a basis substantially consistent with that of the audited financial statements included or incorporated by reference in the Registration Statement, the Preliminary Prospectus and the Final Prospectus;

(2) with respect to the period from January 1, 2007 to March 23, 2007, nothing came to their attention which caused them to believe that there were any changes in the total long-term debt of the Parent and its subsidiaries or capital stock of the Parent or decreases in the consolidated net assets of the Parent or in the total stockholders’ equity of the Parent as compared with the amounts shown on the December 31, 2006 consolidated balance sheet included in the Registration Statement, the Preliminary Prospectus and the Final Prospectus, or for the period from January 1, 2007 to March 23, 2007 to such specified date, there were any decreases, as compared with the corresponding period in the preceding year, in total revenues, net income, operating income or basic and diluted net earnings per share, except in all instances for changes or decreases set forth in such letter, in which case the letter shall be accompanied by an explanation by the Parent as to the significance thereof unless said explanation is not deemed necessary by the Representatives;

(3) nothing came to their attention which caused them to believe that the information included or incorporated by reference in the Registration Statement, the Preliminary Prospectus and the Final Prospectus in response to Regulation S-K, Item 301 (Selected Financial Data), Item 302 (Supplementary Financial Information), Item 402 (Executive Compensation) and Item 503(d) (Ratio of Earnings to Fixed Charges) is not in conformity with the applicable disclosure requirements of Regulation S-K; and

(iii) they have performed certain other specified procedures with respect to certain information of an accounting, financial or statistical nature (which is limited to accounting, financial or statistical information derived from the general accounting records of the Parent and its subsidiaries) set forth in the Registration Statement, the Preliminary Prospectus and the Final Prospectus that has previously been identified to you.

References to the Final Prospectus in this paragraph (h) include any supplement thereto at the date of the letter.

(i) Subsequent to the Execution Time or, if earlier, the dates as of which information is given in the Registration Statement (exclusive of any amendment thereof) and the Final Prospectus (exclusive of any supplement thereto), there shall not have been (i) any change or decrease specified in the letter or letters referred to in paragraph (h) of this Section 6 or (ii) any change, or any development that can be expected to have a material adverse effect on the condition (financial or otherwise), business prospects or results of operations of the Parent and its subsidiaries taken as a whole, whether or not arising from transactions in the ordinary course of business, except as set forth in the Disclosure Package and the Final Prospectus (exclusive of any supplement thereto) the effect of which, in any case referred to in clause (i) or (ii) above, is, in the judgment of the Representatives, so material and adverse as to make it impractical or inadvisable to proceed with the offering or delivery of the Securities as contemplated by the Registration Statement (exclusive of any amendment thereof), the Disclosure Package and the Final Prospectus (exclusive of any supplement thereto).

(j) Prior to the Closing Date, the Issuer, the Parent and the Holdco Guarantors shall have furnished to the Representatives such further customary information, certificates and documents as the Representatives may reasonably request.

(k) Subsequent to the Execution Time, there shall not have been any decrease in the rating of debt securities of the Parent or any of its subsidiaries by any “nationally recognized statistical rating organization” (as defined for purposes of Rule 436(g) under the Act) or any notice given of any intended or potential decrease in any such rating or of a possible change in any such rating that does not indicate the direction of the possible change.

If any of the conditions specified in this Section 6 shall not have been fulfilled in all material respects when and as provided in this Agreement, or if any of the opinions and certificates mentioned above or elsewhere in this Agreement shall not be in all material respects reasonably satisfactory in form and substance to the Representatives and counsel for the Underwriters, this Agreement and all obligations of the Underwriters hereunder may be canceled at, or at any time prior to, the Closing Date by the Representatives. Notice of such cancelation shall be given to the Issuer in writing or by telephone or facsimile confirmed in writing.

The documents required to be delivered by this Section 6 shall be delivered at the office of Cravath, Swaine & ▇▇▇▇▇ LLP, counsel for the Underwriters, at Worldwide Plaza, ▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇-▇▇▇▇ on the Closing Date.

7. Reimbursement of Underwriters’ Expenses. If the sale of the Securities provided for herein is not consummated because any condition to the obligations of the Underwriters set forth in Section 6 hereof is not satisfied because of any refusal, inability or failure on the part of the Issuer, the Parent or of any of the Holdco Guarantors to perform any agreement herein or comply with any provision hereof other than by reason of a default by any of the Underwriters, the Issuer, the Parent and the Holdco Guarantors will reimburse the Underwriters severally through Citigroup Global Markets Inc. on demand accompanied by reasonable supporting documentation for all reasonable out-of-pocket expenses (including reasonable fees and disbursements of counsel) that shall have been incurred by them in connection with the proposed purchase and sale of the Securities.

8. Indemnification and Contribution. a)Each of the Issuer, the Parent and the Holdco Guarantors jointly and severally agrees to indemnify and hold harmless each Underwriter, the directors, officers, employees and agents of each Underwriter and each person who controls any Underwriter within the meaning of either the Act or the Exchange Act against any and all losses, claims, damages or liabilities, joint or several, to which they or any of them may become subject under the Act, the Exchange Act or other foreign, federal, state or statutory law or regulation, at common law or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in the registration statement for the registration of the Securities as originally filed or in any amendment thereof, or in the Basic Prospectus, any Preliminary Prospectus, the Final Prospectus, any Issuer Free Writing Prospectus or the information contained in the final term sheet required to be prepared and filed pursuant to Section 5(ii) hereof or in any amendment thereof or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and agrees to reimburse each such indemnified party, as incurred, for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that the Issuer, the Parent and the Holdco 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 such untrue statement or alleged untrue statement or omission or alleged omission made therein in reliance upon and in conformity with written information furnished to the Parent by or on behalf of any Underwriter through the Representatives specifically for inclusion therein, it being understood and agreed that the only such information is that described in Section 8(b) hereof. This indemnity agreement will be in addition to any liability which the Issuer, the Parent and the Holdco Guarantors may otherwise have.

(b) Each Underwriter severally and not jointly agrees to indemnify and hold harmless the Issuer, the Parent and the Holdco Guarantors, each of their respective directors, each of their respective officers who signs the Registration Statement, and each person who controls the Issuer, the Parent or the Holdco Guarantors within the meaning of either the Act or the Exchange Act, to the same extent as the foregoing indemnity from the Issuer, the Parent and the Holdco Guarantors to each Underwriter, but only with reference to written information relating to such Underwriter furnished to the Issuer by or on behalf of such Underwriter through the Representatives specifically for inclusion in the documents referred to in the foregoing indemnity. This indemnity agreement will be in addition to any liability which any Underwriter may otherwise have. The Issuer, the Parent and the Holdco Guarantors acknowledge that the statements set forth in the last paragraph of the cover page regarding delivery of the Securities and, under the heading “Underwriting”, (i) the list of Underwriters and their respective participation in the sale of the Securities, (ii) the third paragraph relating to concessions and reallowances, (iii) the fifth, sixth and seventh paragraphs related to stabilization, syndicate covering transactions and penalty bids in any Preliminary Prospectus and (iv) the eleventh paragraph relating to electronic prospectuses and the Final Prospectus, constitute the only information furnished in writing by or on behalf of the several Underwriters for inclusion in any Preliminary Prospectus or the Final Prospectus.

(c) Promptly after receipt by an indemnified party under this Section 8 of notice of the commencement of any action, such indemnified party will, if a claim in respect thereof is to be made against the indemnifying party under this Section 8, notify the indemnifying party in writing of the commencement thereof; but the failure so to notify the indemnifying party (i) will not relieve it from liability under paragraph (a) or (b) above unless and to the extent it did not otherwise learn of such action and 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 paragraph (a) or (b) above. The indemnifying party shall be entitled to appoint counsel of the indemnifying party’s choice at the indemnifying party’s expense to represent the indemnified party in any action for which indemnification is sought (in which case the indemnifying party shall not thereafter be responsible for the fees and expenses of any separate counsel retained by the indemnified party or parties except as set forth below); provided, however, that such counsel shall be reasonably satisfactory to the indemnified party. Notwithstanding the indemnifying party’s election to appoint counsel to represent the indemnified party in an action, the indemnified party shall have the right to employ separate counsel (including local counsel), and the indemnifying party shall bear the reasonable fees, costs and expenses of such separate counsel 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 actual or potential defendants in, or targets of, any such action include both the indemnified party and the indemnifying party and the indemnified party shall have reasonably concluded that there may be legal defenses available to it and/or other indemnified parties which are different from or additional to those available to the indemnifying party, (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 notice of the institution of such action or (iv) the indemnifying party shall authorize the indemnified party to employ separate counsel at the expense of the indemnifying party. An indemnifying party will not, without the prior written consent of the indemnified parties (which consent shall not be unreasonably withheld), settle or compromise or consent to the entry of any judgment with respect to any pending or threatened claim, action, suit or proceeding in respect of which indemnification or contribution may be sought hereunder (whether or not the indemnified parties are actual or potential parties to such claim or action) unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability arising out of such claim, action, suit or proceeding.

(d) In the event that the indemnity provided in paragraph (a) or (b) of this Section 8 is unavailable to or insufficient to hold harmless an indemnified party for any reason, the Issuer, the Parent and the Holdco Guarantors and the Underwriters agree to contribute to the aggregate losses, claims, damages and liabilities (including legal or other expenses reasonably incurred in connection with investigating or defending same) (collectively “Losses”) to which the Issuer, the Parent and the Holdco Guarantors and one or more of the Underwriters may be subject in such proportion as is appropriate to reflect the relative benefits received by the Issuer, the Parent and the Holdco Guarantors on the one hand and by the Underwriters on the other from the offering of the Securities; provided, however, that in no case shall (i) any Underwriter (except as may be provided in any agreement among underwriters relating to the offering of the Securities) be responsible for any amount in excess of the underwriting discount or commission applicable to the Securities purchased by such Underwriter hereunder. If the allocation provided by the immediately preceding sentence is unavailable for any reason, the Issuer, the Parent and the Holdco Guarantors and the Underwriters shall contribute in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of the Issuer, the Parent and the Holdco Guarantors on the one hand and of the Underwriters on the other in connection with the statements or omissions which resulted in such Losses as well as any other relevant equitable considerations. Benefits received by the Issuer, the Parent and the Holdco Guarantors shall be deemed to be equal to the total net proceeds from the offering (before deducting expenses) and benefits received by the Underwriters shall be deemed to be equal to the total underwriting discounts and commissions, in each case as set forth on the cover page of the Final Prospectus. Relative fault shall be determined by reference to, among other things, whether any untrue or any alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information provided by the Issuer, the Parent and the Holdco Guarantors or the Underwriters, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such untrue statement or omission. The Issuer, the Parent and the Holdco Guarantors on the one hand and the Underwriters on the other agree that it would not be just and equitable if contribution were determined by pro rata allocation or any other method of allocation which does not take account of the equitable considerations referred to above. Notwithstanding the provisions of this paragraph (d), 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 Section 8, each person who controls an Underwriter within the meaning of either the Act or the Exchange Act and each director, officer, employee and agent of an Underwriter shall have the same rights to contribution as such Underwriter, and each person who controls the Issuer, the Parent or any of the Holdco Guarantors within the meaning of either the Act or the Exchange Act, each officer of the Issuer, the Parent or any of the Holdco Guarantors who shall have signed the Registration Statement and each director of the Issuer, Parent or any Holdco Guarantor shall have the same rights to contribution as the Issuer, subject in each case to the applicable terms and conditions of this paragraph (d).

(e) The Issuer, the Parent and the Holdco Guarantors jointly and severally agree to indemnify and hold harmless each Underwriter, the directors, officers, employees and agents of each Underwriter and each person who controls any Underwriter within the meaning of either the Act or the Exchange Act against any and all losses, claims, damages or liabilities, joint or several, to which they or any of them may become subject insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any failure or alleged failure by the Parent to comply with the terms of the Consortium Registration Rights Agreement, the Profit Sharing Registration Rights Agreement or the Management Registration Rights Agreement in connection with the transactions contemplated by this Agreement.

9. Default by an Underwriter. If any one or more Underwriters shall fail to purchase and pay for any of the Securities agreed to be purchased by such Underwriter or Underwriters hereunder and such failure to purchase shall constitute a default in the performance of its or their obligations under this Agreement, the remaining Underwriters shall be obligated severally to take up and pay for (in the respective proportions which the principal amount of Securities set forth opposite their names in Schedule I hereto bears to the aggregate principal amount of Securities set forth opposite the names of all the remaining Underwriters) the Securities which the defaulting Underwriter or Underwriters agreed but failed to purchase; provided, however, that in the event that the aggregate principal amount of Securities which the defaulting Underwriter or Underwriters agreed but failed to purchase shall exceed 10% of the aggregate principal amount of Securities set forth in Schedule I hereto, the remaining Underwriters shall have the right to purchase all, but shall not be under any obligation to purchase any, of the Securities, and if such non-defaulting Underwriters do not purchase all the Securities, this Agreement will terminate without liability to any non-defaulting Underwriter, the Issuer, the Parent or the Holdco Guarantors. In the event of a default by any Underwriter as set forth in this Section 9, the Closing Date shall be postponed for such period, not exceeding five Business Days, as the Representatives shall determine in order that the required changes in the Registration Statement and the Final Prospectus or in any other documents or arrangements may be effected. Nothing contained in this Agreement shall relieve any defaulting Underwriter of its liability, if any, to the Issuer, the Parent and the Holdco Guarantors and any non-defaulting Underwriter for damages occasioned by its default hereunder.

10. Termination. This Agreement shall be subject to termination in the absolute discretion of the Representatives, by notice given to the Parent prior to delivery of and payment for the Securities, if (a) at any time subsequent to the execution and delivery of this Agreement and prior to such time (i) trading in the Parent’s Common Stock shall have been suspended by the Commission or the New York Stock Exchange or trading in securities generally on the New York Stock Exchange shall have been suspended or limited or minimum prices shall have been established on such Exchange, (ii) a banking moratorium shall have been declared either by Federal or New York State authorities or (iii) there shall have occurred any outbreak or escalation of hostilities, declaration by the United States or the United Kingdom of a national emergency or war, or other calamity or crisis that is material and adverse and (b) in the case of any of the events specified in clauses 10(a)(i) through 10(a)(iii), the effect of such event, singly or together with any other such event, makes it, in the judgment of the Representatives, impractical or inadvisable to proceed with the offering or delivery of the Securities as contemplated by any Preliminary Prospectus or the Final Prospectus (exclusive of any supplement thereto).

11. Representations and Indemnities to Survive. The respective agreements, representations, warranties, indemnities and other statements of the Issuer, the Parent and the Holdco Guarantors or their respective officers and of the Underwriters set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation made by or on behalf of any Underwriter or the Issuer, the Parent and the Holdco Guarantors or any of the officers, directors, employees, agents or controlling persons referred to in Section 8 hereof, and will survive delivery of and payment for the Securities. The provisions of Sections 7 and 8 hereof shall survive the termination or cancelation of this Agreement.

12. Notices. All communications hereunder will be in writing and effective only on receipt, and, if sent to the Representatives, will be mailed, delivered or telefaxed to the Citigroup Global Markets Inc. General Counsel (fax no.: (▇▇▇) ▇▇▇ ▇▇▇▇) and confirmed to the General Counsel, Citigroup Global Markets Inc., at ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, Attention: General Counsel, to ▇.▇. ▇▇▇▇▇▇ Securities Inc., at ▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, Attention: Investment Grade Syndicate Desk (fax no.: (▇▇▇) ▇▇▇ ▇▇▇▇) and to ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co. Incorporated, ▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇^▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇, Attention: Investment Banking Division (fax no.: (▇▇▇) ▇▇▇ ▇▇▇▇); if sent to the Issuer, will be mailed, delivered or telefaxed to (▇▇▇) ▇▇▇ ▇▇▇▇ and confirmed to it at ▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇▇▇, Attention: Corporate Secretary.

13. Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers, directors, employees, agents and controlling persons referred to in Section 8 hereof, and no other person will have any right or obligation hereunder.

14. No fiduciary duty. Each of the Issuer, the Parent and the Holdco Guarantors hereby acknowledges that (a) the purchase and sale of the Securities pursuant to this Agreement is an arm’s-length commercial transaction between the Issuer, the Parent and the Holdco Guarantors, on the one hand, and the Underwriters and any affiliate through which any of them may be acting, on the other, (b) the Underwriters are acting as principal and not as an agent or fiduciary of the Issuer, the Parent or the Holdco Guarantors and (c) the Parent’s and the Issuer’s engagement of the Underwriters in connection with the offering and the process leading up to the offering is as independent contractors and not in any other capacity. Furthermore, each of the Issuer, the Parent and the Holdco Guarantors agrees that it is solely responsible for making its own judgments in connection with the offering (irrespective of whether any of the Underwriters has advised or is currently advising the Issuer, the Parent or the Holdco Guarantors on related or other matters). Each of the Issuer, the Parent and the Holdco Guarantors agrees that it will not claim that the Underwriters have rendered advisory services of any nature or respect, or owe an agency, fiduciary or similar duty to the Issuer, the Parent or the Holdco Guarantors, in connection with such transaction or the process leading thereto.

15. Integration. This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Issuer, the Parent and the Holdco Guarantors and the Underwriters, or any of them, with respect to the subject matter hereof.

16. Applicable Law. This Agreement will be governed by and construed in accordance with the laws of the State of New York applicable to contracts made and to be performed within the State of New York. Each of the Issuer, the Parent and the Holdco Guarantors hereby submits to the non-exclusive jurisdiction of the Federal and state courts in the Borough of Manhattan in New York City in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.

17. Counterparts. This Agreement may be signed in one or more counterparts, each of which shall constitute an original and all of which together shall constitute one and the same agreement.

18. Headings. The section headings used herein are for convenience only and shall not affect the construction hereof.

19. Definitions. The terms which follow, when used in this Agreement, shall have the meanings indicated.

“Act” shall mean the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Basic Prospectus” shall mean the prospectus referred to in paragraph 1(i) above contained in the Registration Statement at the Execution Time.

“Business Day” shall mean any day other than a Saturday, a Sunday or a legal holiday or a day on which banking institutions or trust companies are authorized or obligated by law to close in New York City.

“Commission” shall mean the Securities and Exchange Commission.

“Disclosure Package” shall mean (i) the Basic Prospectus, (ii) the Preliminary Prospectus used most recently prior to the Execution Time, (iii) the Issuer Free Writing Prospectuses, if any, identified in Schedule IV hereto, (iv) the final term sheet prepared and filed pursuant to Section 5(ii) hereto, if any, and (v) any other Free Writing Prospectus that the parties hereto shall hereafter expressly agree in writing to treat as part of the Disclosure Package.

“Effective Date” shall mean each date and time that the Registration Statement and any post-effective amendment or amendments thereto became or become effective.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Execution Time” shall mean the date and time that this Agreement is executed and delivered by the parties hereto.

“Final Prospectus” shall mean the prospectus supplement relating to the Securities that was first filed pursuant to Rule 424(b) after the Execution Time, together with the Basic Prospectus.

“Free Writing Prospectus” shall mean a free writing prospectus, as defined in Rule 405.

“Issuer Free Writing Prospectus” shall mean an issuer free writing prospectus, as defined in Rule 433.

“Preliminary Prospectus” shall mean any preliminary prospectus supplement to the Basic Prospectus which is used prior to the filing of the Final Prospectus, together with the Basic Prospectus.

“Registration Statement” shall mean the registration statement referred to in paragraph 1(i) above, including exhibits and financial statements and any prospectus supplement relating to the Securities that is filed with the Commission pursuant to Rule 424(b) and deemed part of such registration statement pursuant to Rule 430B, as amended on each Effective Date and, in the event any post-effective amendment thereto becomes effective prior to the Closing Date, shall also mean such registration statement as so amended.

“Rule 158”, “Rule 163”, “Rule 164”, “Rule 172”, “Rule 405”, “Rule 415”, “Rule 424”, “Rule 430B” and “Rule 433” refer to such rules under the Act.

“Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended and the rules and regulations of the Commission promulgated thereunder.

“Well-Known Seasoned Issuer” shall mean a well-known seasoned issuer, as defined in Rule 405.

If the foregoing is in accordance with your understanding of our agreement, please sign and return to us the enclosed duplicate hereof, whereupon this letter and your acceptance shall represent a binding agreement among the Issuer, the Guarantors and the several Underwriters.

Very truly yours,

▇▇▇▇▇▇ NORTH AMERICA INC.
by

	Name: ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
	Title: General Counsel and Senior Vice President

▇▇▇▇▇▇ GROUP HOLDINGS LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Group Chief Financial Officer

▇▇▇▇▇▇ GROUP LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

TA I LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

▇▇ ▇▇ LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

TA III LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

TRINITY ACQUISITION LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

▇▇ ▇▇ LIMITED
by

	Name: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
	Title: Director

The foregoing Agreement is hereby

confirmed and accepted as of the

date first above written.

Citigroup Global Markets Inc. ▇.▇. ▇▇▇▇▇▇ Securities Inc. ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co. Incorporated
by		Citigroup Global Markets Inc.

By

	Name:
	Title:

by	▇.▇. ▇▇▇▇▇▇ Securities Inc.

By

	Name:
	Title:

by	▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co. Incorporated

By

	Name:
	Title:

For itself and the other several

Underwriters named in Schedule I

to the foregoing Agreement.

Willis North America Inc. $600,000,000 6.200% Senior Notes due 2017 Underwriting Agreement

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