Document:

Supplemental Indenture

 Exhibit 4.1 
 AMBAC FINANCIAL GROUP, INC. 
 and 
 THE BANK OF NEW YORK, 
 as Trustee 
  
  
 SUPPLEMENTAL INDENTURE NO. 1 
 Dated as of March 12, 2008 
  
  

 THIS SUPPLEMENTAL INDENTURE No. 1 (this “Supplemental Indenture”), dated as of
March 12, 2008, is between AMBAC FINANCIAL GROUP, INC., a Delaware corporation (the “Company”), and THE BANK OF NEW YORK, a New York banking corporation, as Trustee (the “Trustee”). 
 R E C I T A L S 
 WHEREAS, the Company has
heretofore executed and delivered to the Trustee an Indenture, dated as of February 15, 2006 (the “Base Indenture” and together with this Supplemental Indenture, the “Indenture”), providing for the issuance
from time to time of series of the Company’s Securities (as defined in the Base Indenture); 
 WHEREAS, Section 901(7) of the Base
Indenture provides for the Company and the Trustee to enter into an indenture supplemental to the Base Indenture to establish the form or terms of Securities of any series as permitted by Sections 201 or 301 of the Base Indenture; 
 WHEREAS, Section 901(5) of the Base Indenture provides for the Company and the Trustee to, among other things, enter into an indenture supplemental
to the Base Indenture to add to, change or eliminate any of the provisions of the Base Indenture in respect of one or more series of Securities; provided, that any such addition, change or elimination shall become effective only when there is no
such Security Outstanding; 
 WHEREAS, pursuant to Section 301 of the Base Indenture, the Company wishes to provide for the issuance of
a new series of Securities to be known as its 9.50% Senior Notes due 2021 (the “Senior Notes”), the form and terms of such Senior Notes and the terms, provisions and conditions thereof to be set forth as provided in the Base
Indenture and in this Supplemental Indenture; 
 WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental
Indenture, and all requirements necessary to make this Supplemental Indenture a valid, binding and enforceable instrument in accordance with its terms, and to make the Senior Notes, when executed by the Company and authenticated and delivered by the
Trustee, the valid, binding and enforceable obligations of the Company, have been done and performed, and the execution and delivery of this Supplemental Indenture has been duly authorized in all respects. 
 NOW, THEREFORE, in consideration of the covenants and agreements set forth herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows: 
 ARTICLE 1 
 DEFINITIONS 
 Section 1.01 Relation to Base
Indenture. Except as otherwise set forth in this Supplemental Indenture, the provisions of the Base Indenture shall apply to the Senior Notes. 
 Section 1.02 Definition of Terms. For all purposes of this Supplemental Indenture: 

 (a) Capitalized terms used herein without definition shall have the meanings specified in
the Base Indenture, or, if not defined in the Base Indenture, in the Purchase Contract Agreement, the Pledge Agreement or the Remarketing Agreement; 
 (b) a term defined anywhere in this Supplemental Indenture has the same meaning throughout; 
 (c) the singular includes the plural and vice versa; 
 (d) headings are for convenience of reference only and do not
affect interpretation; 
 (e) the following terms have the meanings given to them in this Article 1: 
 “Applicable Ownership Interest in Senior Notes” shall have the meaning specified in the Purchase Contract Agreement. 
 “Business Day” shall have the meaning specified in the Purchase Contract Agreement. 
 “Collateral Account” shall have the meaning specified in the Pledge Agreement. 
 “Corporate Units” shall have the meaning specified in the Purchase Contract Agreement. 
 “Coupon Rate” shall have the meaning set forth in Section 2.05(a). 
 “Depositary” means a clearing agency registered under Section 17A of the Securities Exchange Act of 1934, as amended, that is
designated to act as depositary for the Senior Notes. 
 “Depositary Participant” means a broker, dealer, bank, other
financial institution or other Person for whom from time to time the Depositary effects book entry transfers and pledges of securities deposited with the Depositary. 
 “Global Senior Note” shall have the meaning set forth in Section 2.04. 
 “Maturity Date” shall have the meaning specified in Section 2.02. 
 “Optional Redemption”
means the redemption of the Senior Notes pursuant to the terms hereof. 
 “Optional Redemption Right” shall have the meaning
set forth in Section 3.01. 
 “Payment Date” shall have the meaning set forth in Section 2.05(b). 
 “Pledge Agreement” means the Pledge Agreement, dated as of March 12, 2008, among the Company, The Bank of New York, as Collateral
Agent, Custodial Agent and Securities 

 
Intermediary, and The Bank of New York, as Purchase Contract Agent and attorney-in-fact for the Holders of the Units, as amended from time to time.

 “Purchase Contract” shall have their respective meanings specified in the Purchase Contract Agreement. 
 “Purchase Contract Agreement” means the Purchase Contract Agreement, dated as of March 12, 2008, between the Company and The Bank
of New York, as Purchase Contract Agent and attorney-in-fact for the Holders of the Units, as amended from time to time. 
 “Purchase
Contract Settlement Date” means May 17, 2011. 
 “Put Price” shall have the meaning set forth in
Section 8.05(a). 
 “Put Right” shall have the meaning set forth in Section 8.05(a). 
 “Quotation Agent” means any primary U.S. government securities dealer selected by the Company. 
 “Record Date” means, with respect to any Payment Date for the Senior Notes, the first Business Day of the calendar month in which such
Payment Date falls; provided that the Company may, at its option, select any other day as the Record Date for any Payment Date so long as such Record Date selected is more than one Business Day but less than sixty Business Days prior to such
Payment Date. 
 “Redemption Date” shall have the meaning set forth in Section 3.01. 
 “Redemption Price” shall mean, for each Senior Note, an amount equal to $1.000 per Senior Note plus any accrued and unpaid interest on
such Senior Note to but excluding the Redemption Date. 
 “Redemption Provisions” shall mean the redemption provisions of
Article 11 of the Base Indenture and Article 3 herein applicable to the Senior Notes. 
 “Remarketed Senior Notes”
shall have the meaning set forth in Section 8.01(c). 
 “Remarketing Agent” shall have the meaning set forth in the
Remarketing Agreement. 
 “Remarketing Agreement” means the Remarketing Agreement, dated as of March 12, 2008, among
the Company, Credit Suisse Securities (USA) LLC, Citigroup Global Markets Inc., UBS Securities LLC, Banc of America Securities LLC, each as a potential Remarketing Agent, and The Bank of New York, as Purchase Contract Agent, as amended from time to
time. 
 “Remarketing Price” shall have the meaning set forth in Section 8.02. 
 “Remarketing Settlement Date” shall have the meaning specified in the Purchase Contract Agreement. 

 “Reset Rate” means the interest rate per annum on the Senior Notes (i) in the case
of a Successful Remarketing, as determined by the Remarketing Agent, in consultation with the Company and in accordance with the terms of the Remarketing Agreement; provided that if there are no Corporate Units outstanding and none of the
Holders elect to have Separate Senior Notes held by them remarketed, or in the case of a Failed Remarketing, the interest rate payable on the Senior Notes will not be reset and the interest rate payable on the Senior Notes shall continue to be the
Coupon Rate; provided further that in no event shall the Reset Rate exceed the maximum rate, if any, permitted by applicable law. 
 “Separate Senior Notes” means Senior Notes that are no longer a component of Corporate Units. 
 “Treasury
Portfolio” shall have the meaning specified in the Purchase Contract Agreement. 
 “Treasury Portfolio Purchase
Price” means the lowest aggregate ask-side price quoted by a Primary Treasury Dealer to the Quotation Agent between 9:00 a.m. and 11:00 a.m. (New York City time), in the case of a Successful Remarketing, on the date of such Successful
Remarketing for the purchase of the applicable Treasury Portfolio for settlement on the Remarketing Settlement Date. 
 The terms
“Company,” “Trustee,” “Indenture,” “Base Indenture,” “Supplemental Indenture,” and “Senior Notes” shall have the respective meanings set forth in
the recitals to this Supplemental Indenture and the paragraph preceding such recitals. 
 ARTICLE 2 
 GENERAL TERMS AND CONDITIONS OF THE SENIOR NOTES 
 Section 2.01 Designation and Principal Amount. There is hereby authorized a series of Securities designated as 9.50% Senior Notes due 2021 limited in aggregate principal amount to $250,000,000 (or up to $287,500,000 to the extent
that the underwriters’ over-allotment option is exercised). The Senior Notes may be issued from time to time upon written order of the Company for the authentication and delivery of Senior Notes pursuant to Section 303 of the Base
Indenture. 
 Section 2.02 Maturity. Unless an Optional Redemption occurs prior to the Maturity Date, the date upon which the Senior
Notes shall become due and payable at final maturity, together with any accrued and unpaid interest, is February 15, 2021, or such earlier date as may be determined by the Company, in consultation with the Remarketing Agent, in connection with
a Successful Remarketing, provided that the Senior Notes may not mature earlier than two years following the Purchase Contract Settlement Date (the “Maturity Date”). 

 Section 2.03 Form, Payment and Appointment. (a) Except as provided in Section 2.04, the
Senior Notes shall be issued in fully registered, certificated form, bearing identical terms. Senior Notes corresponding to Applicable Ownership Interests in Senior Notes that are components of Corporate Units shall be registered in the name of The
Bank of New York, as Purchase Contract Agent. Principal of and interest on the Senior Notes will be payable, the transfer of such Senior Notes will be registrable, and such Senior Notes will be exchangeable for Senior Notes of a like aggregate
principal amount bearing identical terms and provisions, at the office or agency of the Company maintained for such purpose in the Borough of Manhattan, New York City, which shall initially be the Corporate Trust Office of the Trustee; provided,
however, that payment of interest may be made at the option of the Company by check mailed to the Holder at such address as shall appear in the Security Register or by wire transfer to an account appropriately designated by the Holder entitled
to payment. 
 (b) No service charge shall be made for any registration of transfer or exchange of the Senior Notes, but the Company may
require payment from the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection therewith. 
 (c) The Security Registrar and Paying Agent for the Senior Notes shall initially be the Trustee. 
 (d) The Senior Notes shall be
issuable in denominations of $1,000 and integral multiples of $1,000 in excess thereof. 
 Section 2.04 Global Senior Notes. Senior
Notes corresponding to Applicable Ownership Interests in Senior Notes that are no longer a component of the Corporate Units and released from the Collateral Account will be issued in permanent global form (a “Global Senior Note”),
and if issued as one or more Global Senior Notes, the Depositary shall be The Depository Trust Company or such other depositary as any officer of the Company may from time to time designate. Upon the creation of Treasury Units or the recreation of
Corporate Units, an appropriate annotation shall be made on the Schedule of Increases and Decreases on the Global Senior Notes held by the Depositary. Except as otherwise provided in the Indenture, or except upon recreation of Corporate Units,
Senior Notes represented by the Global Senior Notes will not be exchangeable for, and will not otherwise be issuable as, Senior Notes in certificated form. Unless and until a Global Senior Note is exchanged for Senior Notes in certificated form,
such Global Senior Note may be transferred, in whole but not in part, and any payments on the Senior Notes shall be made only to the Depositary or a nominee of the Depositary, or to a successor Depositary selected or approved by the Company or to a
nominee of such successor Depositary. Payments with respect to any Global Senior Note will be made by wire transfer to the Depositary. 
 Section 2.05 Interest. (a) The Senior Notes will bear interest initially at the rate of 9.50% per year (the “Coupon Rate”) from the original date of issuance through and including the earlier of
(i) the Maturity Date and (ii) the day immediately preceding any Remarketing Settlement Date. In the event of a Successful Remarketing of the Senior Notes, the Coupon Rate will be reset by the Remarketing Agent, in consultation with the
Company, at the appropriate Reset Rate with effect from the related Remarketing Settlement Date, as set forth under Section 8.03. If the Coupon Rate is so reset, the Senior Notes will bear interest at the Reset Rate from 

 
the related Remarketing Settlement Date until the principal thereof and interest thereon is paid or duly made available for payment. The Senior Notes shall
bear interest, to the extent permitted by law, compounded on each Payment Date, on any overdue principal and payment of interest at the Coupon Rate through and including the day immediately preceding the Remarketing Settlement Date and at the Reset
Rate thereafter. 
 (b) Interest on the Senior Notes shall be payable quarterly in arrears on February 15, May 15,
August 15 and November 15 of each year (each, a “Payment Date”) (except as provided in clause (c) below), commencing May 15, 2008, to the Person in whose name such Senior Note, or any predecessor Senior Note, is
registered at the close of business on the Record Date for such Payment Date. Interest on the Senior Notes shall accrue from March 12, 2008. 
 (c) Following a Successful Remarketing, interest on the Senior Notes shall accrue at the Reset Rate and shall be payable semi-annually in arrears such that the Payment Dates shall be February 15 and
August 15 of each year commencing August 15, 2011. 
 (d) The amount of interest payable for any full quarterly or
semi-annual period will be computed on the basis of a 360-day year consisting of twelve 30-day months. The amount of interest payable for any period shorter than a full quarterly or semi-annual period for which interest is computed will be computed
on the basis of a 30-day month and, for any period less than a month, on the basis of the actual number of days elapsed per 30-day month. In the event that any scheduled Payment Date falls on a day that is not a Business Day, then payment of
interest payable on such Payment Date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). 
 Section 2.06 No Defeasance. The provisions of Article 14 of the Base Indenture shall not apply to the Senior Notes. 
 Section 2.07 No Sinking Fund. The Senior Notes are not entitled to the benefit of any sinking fund. 
 Section 2.08 No Subordination. The Senior Notes shall rank equally in right of payment to any unsecured and unsubordinated existing or future
indebtedness of the Company and senior in right of payment to any subordinated indebtedness of the Company. 
 Section 2.09 No Issuance of
Additional Senior Notes. The Company shall not be entitled to issue any Senior Notes in addition to the Senior Notes issued as of the date of this Supplemental Indenture. 
 ARTICLE 3 
 REDEMPTION OF THE SENIOR NOTES 
 Section 3.01 Optional Redemption. On or after May 17, 2013, the Company may, at its option, redeem the Senior Notes in whole, but not in part
(the “Optional Redemption Right”), on any Payment Date at a price per Senior Note equal to the Redemption Price, payable on the date 

 
of redemption (the “Redemption Date”) to the Holders of the Senior Notes registered at the close of business on the Record Date for such
Interest Payment Date. Notice of any Optional Redemption will be mailed by the Company or, at the Company’s request, the Trustee at least 30 days but not more than 60 days before the Redemption Date to each registered Holder of the Senior Notes
at its registered address. Unless the Company defaults in the payment of the Redemption Price, on and after the Redemption Date, (a) interest shall cease to accrue on the Senior Notes, (b) the Senior Notes shall become due and payable at
the Redemption Price, and (c) the Senior Notes shall be void and all rights of the Holders in respect of the Senior Notes shall terminate and lapse (other than the right to receive the Redemption Price upon surrender of such Senior Notes but
without interest on such Redemption Price). Following the notice of an Optional Redemption, neither the Company nor the Trustee shall be required to register the transfer of or exchange the Senior Notes to be redeemed. Sections 1105 and 1106 of the
Base Indenture shall not apply to the Senior Notes. 
 The Company may at any time irrevocably waive its right to redeem the Senior Notes for
any specified period (including the remaining term of the Senior Notes). The Company may not redeem the Senior Notes under this Section 3.01 if the Senior Notes have been accelerated and such acceleration has not been rescinded or unless all
accrued and unpaid interest has been paid in full on all outstanding Senior Notes for all Payment Dates on or prior to the Redemption Date. 
 Section 3.02 Redemption Procedures. On or prior to the Redemption Date, the Company shall deposit with the Trustee immediately available funds in an amount sufficient to pay, on the Redemption Date, the aggregate Redemption Price for
Senior Notes being redeemed, and the Trustee will irrevocably deposit such funds with the Depositary. The Company will also give the Depositary irrevocable instructions and authority to pay the Redemption Price in immediately available funds to the
holders of beneficial interests in the Global Senior Notes. If any Redemption Date is not a Business Day, then the Redemption Price will be payable on the next Business Day (and without any interest or other payment in respect of any such delay).
Interest to be paid on or before the Redemption Date for any Senior Notes called for redemption shall be payable to the holders on the regular Record Dates for the related Payment Dates. If any Senior Notes called for redemption are not so paid upon
surrender thereof for redemption, the Redemption Price will, until paid, bear interest from the Redemption Date at the Coupon Rate or Reset Rate, as applicable. 
 Section 3.03 No Other Redemption. Except as set forth in this Article 3, the Senior Notes shall not be redeemable by the Company prior to the Maturity Date. 
 ARTICLE 4 
 FORM OF SENIOR NOTE 
 Section 4.01 Form of Senior Note. The Senior Notes and the Trustee’s Certificate of Authentication to be endorsed thereon are to be
substantially in the forms attached as Exhibit A hereto, with such changes therein as the officers of the Company executing the Senior Notes (by manual or facsimile signature) may approve, such approval to be conclusively evidenced by their
execution thereof. 

 ARTICLE 5 
 ORIGINAL ISSUE OF SENIOR NOTES 
 Section 5.01 Original Issue of Senior Notes. Senior Notes in the
aggregate principal amount of $250,000,000 (or up to $287,500,000 to the extent that the underwriters’ over-allotment option is exercised) may from time to time, upon execution of this Supplemental Indenture, be executed by the Company and
delivered to the Trustee for authentication, and the Trustee shall thereupon authenticate and deliver said Senior Notes to or upon the written order of the Company pursuant to Section 303 of the Base Indenture without any further action by the
Company (other than as required by the Base Indenture). 
 ARTICLE 6 
 ORIGINAL ISSUE DISCOUNT 
 Section 6.01 Original Issue Discount. The Company
shall file with the Trustee promptly at the end of each calendar year (i) a written notice specifying the amount of original issue discount (including daily rates and accrual periods) accrued on Senior Notes that are Outstanding as of the end
of the year and (ii) such other specific information relating to such original issue discount as may then be relevant under the Internal Revenue Code of 1986, as amended from time to time. 
 ARTICLE 7 
 MISCELLANEOUS 
 Section 7.01 Ratification of Indenture. The Indenture, as supplemented by this Supplemental Indenture, is in all respects ratified and confirmed,
and this Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided. 
 Section
7.02 Trustee Not Responsible For Recitals. The recitals herein contained are made by the Company and not by the Trustee, and the Trustee assumes no responsibility for the correctness thereof. The Trustee makes no representation as to the
validity or sufficiency of this Supplemental Indenture. 
 Section 7.03 New York Law to Govern. THE BASE INDENTURE, THIS SUPPLEMENTAL
INDENTURE AND EACH SENIOR NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO THE CONFLICTS OF LAW PROVISIONS THEREOF. 
 Section 7.04 Separability. In case any provision in this Supplemental Indenture or in the Senior Notes shall be invalid, illegal or unenforceable,
the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 Section 7.05
Counterparts. This Supplemental Indenture may be executed in any number of counterparts each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. 

 Section 7.06 Conflict with Trust Indenture Act. If any provision hereof limits, qualifies or
conflicts with any provision deemed to be included in the Indenture by any of the provisions of the Trust Indenture Act, which deemed-included provision shall control. 
 Section 7.07 Certain Duties and Responsibilities. 
 (a) The Trustee shall have and be
subject to all the duties and responsibilities specified with respect to an indenture trustee in the Trust Indenture Act and no implied covenants or obligations shall be read into the Indenture against the Trustee. For purposes of
Section 315(a) and 315(c) of the Trust Indenture Act, the term “default” is hereby defined as an Event of Default which has occurred and is continuing. 
 (b) Whether or not therein expressly so provided, every provision of the Indenture relating to the conduct or affecting the liability of
or affording protection to the Trustee shall be subject to the provisions of this Section. 
 ARTICLE 8 
 REMARKETING 
 Section 8.01 Remarketing
Procedures. (a) The Company shall engage the Remarketing Agent pursuant to the Remarketing Agreement for the Remarketing of the Senior Notes. The Company will request, not later than seven nor more than 15 calendar days prior to the Initial
Remarketing Date, that the Depositary or its nominee notify the Beneficial Owners or Depositary Participants holding Separate Senior Notes, Corporate Units and Treasury Units of the procedures to be followed in such Remarketing. 
 (b) Each Holder of Separate Senior Notes may elect to have Separate Senior Notes held by such Holder remarketed in any Remarketing. A
Holder making such an election must, pursuant to the Pledge Agreement, notify the Custodial Agent and deliver such Separate Senior Notes to the Custodial Agent on or prior to the close of business on the second Business Day immediately preceding the
Initial Remarketing Date (but no earlier than the Payment Date immediately preceding the Initial Remarketing Date). Any such notice and delivery may be withdrawn on or prior to the close of business on the second Business Day immediately preceding
the Initial Remarketing Date in accordance with the provisions set forth in the Pledge Agreement. Any such notice and delivery not withdrawn by such time will be irrevocable with respect to such Remarketing. Pursuant to Section 5.09(a) of the
Pledge Agreement, by the close of business on the Business Day immediately preceding the Initial Remarketing Date, the Custodial Agent, based on the notices and deliveries received by it prior to such time, shall notify the Remarketing Agent of the
principal amount of Separate Senior Notes to be tendered for remarketing and shall cause such Separate Senior Notes to be presented to the Remarketing Agent. Under Section 5.02 of the Purchase Contract Agreement, Senior Notes that underlie the
Applicable Ownership Interests in Senior Notes that are components of Corporate Units will be deemed tendered for Remarketing and will be remarketed in accordance with the terms of the Remarketing Agreement. 

 (c) The right of each Holder of Senior Notes that are included in Corporate Units to have
such Senior Notes, and each Holder of Separate Senior Notes to have any Separate Senior Notes (together, the “Remarketed Senior Notes”), remarketed and sold on any Remarketing Date shall be limited to the extent that (i) the
Remarketing Agent conducts a Remarketing pursuant to the terms of the Remarketing Agreement, (ii) the Remarketing Agent is able to find a purchaser or purchasers for Remarketed Senior Notes at the Remarketing Price, and (iii) the purchaser
or purchasers deliver the purchase price therefor to the Remarketing Agent as and when required. 
 (d) Neither the Trustee,
the Company nor the Remarketing Agent shall be obligated in any case to provide funds to make payment upon tender of Senior Notes for remarketing. 
 (e) In connection with a Remarketing, the Company, in consultation with the Remarketing Agent, may elect to modify (a) the Maturity Date of the Senior Notes, effective on and after the Remarketing Settlement Date
to make the Senior Notes mature at any earlier time; provided that such modification shall not result in the Senior Notes maturing at any time earlier than the Maturity Date unless notice thereof is given to Holders prior to such modification (which
notice, if applicable, may be in the form of the prospectus used for the remarketing of the Senior Notes delivered to the Holders of the Senior Notes); provided further, that the Senior Notes may not mature earlier than two years following the
Purchase Contract Settlement Date; and (b) the Redemption Provisions relating to the Senior Notes, effective on and after the Remarketing Settlement Date, to eliminate the Optional Redemption Right in its entirety or to provide that the
Optional Redemption Right will arise at a later date. 
 Section 8.02 Remarketing. It is understood and agreed that Remarketing on any
Remarketing Date will be considered successful and no further attempts will be made if the resulting proceeds are at least 100% of the sum of the Treasury Portfolio Purchase Price and the Separate Senior Note Purchase Price (such amount, the
“Remarketing Price”). 
 Section 8.03 Modification of Terms. (a) In connection with each Remarketing, the
Company shall determine, in consultation with the Remarketing Agent, the Maturity Date and Redemption Provisions the Remarketed Senior Notes should contain, and the Remarketing Agent shall determine, in consultation with the Company, the Reset Rate
(rounded to the nearest one-thousandth (0.001) of one percent per annum) that the Remarketed Senior Notes should bear in order to have an approximate aggregate market value equal to the Remarketing Price and that the Remarketing Agent reasonably
believes will enable it to remarket all of the Remarketed Senior Notes at the Remarketing Price in such Remarketing. 
 (b)
Anything herein to the contrary notwithstanding, the Reset Rate shall in no event exceed the maximum rate permitted by applicable law and the Remarketing Agent shall have no obligation to determine whether there is any limitation under applicable
law on the Reset Rate or, if there is any such limitation, the maximum permissible Reset Rate on the Senior Notes and it shall rely solely upon written notice from the Company (which the Company agrees to provide prior to the eighth Business Day
before the Initial 

 
Remarketing Date) as to whether or not there is any such limitation and, if so, the maximum permissible Reset Rate. 
 (c) In the event of a Failed Remarketing or if no Applicable Ownership Interests in Senior Notes are included in Corporate Units and none
of the holders of the Separate Senior Notes elect to have their Senior Notes remarketed in any Remarketing (i) the Maturity Date of the Senior Notes will not be changed and will continue to be the Maturity Date set forth in Section 2.02,
(ii) the applicable interest rate on the Senior Notes will not be reset and will continue to be the Coupon Rate and (iii) the Redemption Provisions will not be changed and will continue to be the Redemption Provisions as of the date
hereof. 
 (d) In the event of a Successful Remarketing, (i) the Coupon Rate shall be reset at the Reset Rate as
determined by the Remarketing Agent, in consultation with the Company, under the Remarketing Agreement, (ii) the Maturity Date shall be modified as determined by the Company, in consultation with the Remarketing Agent, and in accordance with
Section 2.02(c) and (iii) the Redemption Provisions shall be modified as determined by the Company, in consultation with the Remarketing Agent, and in accordance with Article 11 of the Base Indenture and Article 3 herein. The
modified Maturity Date shall be effective on and after the Remarketing Settlement Date. 
 Section 8.04 Failed Remarketing.
(a) If the Initial Remarketing is not a Successful Remarketing, and so long as no Successful Remarketing has occurred, the Remarketing Agent shall, on each of the four succeeding Business Days until a Successful Remarketing occurs, in each
case, for settlement on the Remarketing Settlement Date, attempt to remarket the Remarketed Senior Notes. If a Successful Remarketing has not occurred by the Final Remarketing Date, the Remarketing Agent will promptly return Separate Senior Notes to
the Custodial Agent, in accordance with the Pledge Agreement, for delivery to the appropriate Holders. The Remarketing Agent shall promptly advise by telephone the Depositary, the Purchase Contract Agent and the Company of each Failed Remarketing.

 (b) The Company shall cause a notice of such Failed Remarketing to be published (with a copy of such notice to be provided
to the Purchase Contract Agent) on the Business Day immediately following the Remarketing Settlement Date in a daily newspaper in the English language of general circulation in New York City, which is expected to be The Wall Street Journal.

 Section 8.05 Put Right. (a) If there has not been a Successful Remarketing prior to the Purchase Contract Settlement Date,
Holders of Separate Senior Notes and Holders of Corporate Units will, subject to this Section 8.05, have the right (the “Put Right”) to require the Company to purchase their Senior Notes, on the Purchase Contract Settlement
Date, at a price equal to $1,000 per Senior Note or $50 per Corporate Unit plus accrued and unpaid interest on the Senior Notes from, and including, May 15, 2011 to, but excluding, May 17, 2011 (the “Put Price”).

 (b) The Put Right with respect to a Holder’s Applicable Ownership Interest of Senior Notes that is part of a Corporate
Unit will be automatically exercised unless such Holder (1) on or prior to 11:00 a.m., New York City time, on the second Business Day immediately 

 
preceding the Purchase Contract Settlement Date, provides written notice to the Purchase Contract Agent of its intention to settle the related Purchase
Contract with separate cash, and (2) on or prior to the Business Day immediately preceding the Purchase Contract Settlement Date, delivers to the Collateral Agent $50 in cash per Corporate Unit, in each case pursuant to the Purchase Contract
Agreement. Unless a Corporate Unit holder has settled the related Purchase Contract with separate cash on or prior to the Purchase Contract Settlement Date, the Company, on the Purchase Contract Settlement Date, shall cause the Put Price to be
deposited in the Collateral Account and the Collateral Agent shall cause the Securities Intermediary to remit the Purchase Price for the shares of Common Stock (or, in the circumstances described in Section 5.08 of the Purchase Contract
Agreement, shares of Series A Preferred Stock) to be issued under the related Purchase Contract from a portion of the Proceeds of the Put Right to the Company in full satisfaction of such Holder’s obligations under the related Purchase
Contract. Any remaining amount of the Put Price following satisfaction of the related Purchase Contract will be paid to such Corporate Unit Holder on the Purchase Contract Settlement Date together with the interest payment on the Senior Notes in
respect of the Payment Date falling on May 15, 2011. If the Company shall fail to pay the Put Price on the Purchase Contract Settlement Date in accordance with the foregoing, the Company shall be deemed to have netted its obligation to pay the
Put Price against the obligation of a Holder of a Senior Note that is a component of a Corporate Unit to pay the Purchase Price under the related Purchase Contract on the Purchase Contract Settlement Date in full satisfaction of such Holder’s
obligations under the Purchase Contract. 
 (c) The Put Right of a Holder of a Separate Senior Note shall only be exercisable
upon delivery of a notice to the Trustee by such Holder on or prior to the second Business Day prior to the Purchase Contract Settlement Date. On or prior to the Purchase Contract Settlement Date, the Company shall deposit with the Trustee
immediately available funds in an amount sufficient to pay, on the Purchase Contract Settlement Date, the aggregate Put Price of all Separate Senior Notes with respect to which a Holder has exercised a Put Right. In exchange for any Separate Senior
Notes surrendered pursuant to the Put Right, the Trustee shall then distribute such amount to the Holders of such Separate Senior Notes. 
 Section 8.06 Additional Events of Default. In addition to the events listed as Events of Default in Section 501 of the Base Indenture, it shall be an additional Event of Default with respect to the Senior Notes, if: 

(a) the Company shall not have satisfied its obligation to pay the Put Price when due in accordance with Section 8.05 (either by
payment of the Put Price to the Trustee when due, by deposit of the Put Price in the Collateral Account when due or by netting the Put Price against a Holder’s obligation under the related Purchase Contract if a Senior Note is a component of a
Corporate Unit); or 
 (b) any event of default shall have occurred in respect of our indebtedness (including guaranteed
indebtedness but excluding any subordinated indebtedness), and, as a result, an aggregate principal amount exceeding $100 million of such indebtedness is accelerated prior to its scheduled maturity and such acceleration is not rescinded or annulled
within 30 days after we receive written notice. 

 ARTICLE 9 
 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE 
 Section 9.01 (a) With respect to the Senior Notes
only, Article Eight of the Base Indenture is hereby replaced in its entirety by this Section. 
 (b) The Company shall not
consolidate with or merge into any other Person or convey, transfer or lease its properties and assets as an entirety or substantially as an entirety to any Person unless: 
 (1) in case the Company shall consolidate with or merge into another Person or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to any Person, the Person formed by such consolidation or into which the Company is merged or the Person which acquires by conveyance or transfer, or which leases, the properties and assets of the Company as
an entirety or substantially as an entirety shall be a Person organized under the laws of the United States of America, any state thereof or the District of Columbia and shall expressly assume, by an indenture supplemental hereto, executed and
delivered to the Trustee, in form reasonably satisfactory to the Trustee, the due and punctual payment of the principal of (and premium, if any) and interest on all the Senior Notes and the performance of every covenant of the Indenture on the part
of the Company to be performed or observed; 
 (2) immediately after giving effect to such transaction and treating any
indebtedness which becomes an obligation of the Company as a result of such transaction as having been incurred by the Company at the time of such transaction, no Event of Default, and no event which, after notice or lapse of time or both, would
become an Event of Default, shall have happened and be continuing; and 
 (3) the Company has delivered to the Trustee an
Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, merger, conveyance, transfer or lease and, if a supplemental indenture is required with such transaction, such supplemental indenture comply with this
Article and that all conditions precedent herein provided for relating to such transaction have been complied with. 
 (c) Upon any
consolidation by the Company with or merger by the Company into any other Person or any conveyance, transfer or lease of the properties and assets of the Company as an entirety or substantially as an entirety in accordance with Section 9.01(b),
the successor Person formed by such consolidation or into which the Company is merged or to which such conveyance, transfer or lease is made shall succeed to, and be substituted for, and may exercise every right and power of, the Company under the
Indenture with the same effect as if such successor Person had been named as the Company herein, and thereafter, except in the case of a lease, the predecessor Person 

 
shall be relieved of all obligations and covenants under the Indenture and the Senior Notes. 
 ARTICLE 10 
 TAX TREATMENT 
 Section 10.01 Tax Treatment. The Company agrees, and by acceptance of a Corporate Unit, each holder of a Corporate Unit will be deemed to have
agreed (1) for United States federal, state and local income and franchise tax purposes to treat the acquisition of a Corporate Unit as the acquisition of the Applicable Ownership Interest in the Senior Notes and the Purchase Contract
constituting the Corporate Unit and (2) to treat the Senior Notes underlying the Applicable Ownership Interest in the Senior Notes as indebtedness for United States federal, state and local income and franchise tax purposes. A Holder of Senior
Notes may obtain the comparable yield and projected payment schedule for the Senior Notes, determined by the Company pursuant to Treas. Reg. Sec. 1.1275-4, by submitting a written request for such information to the Company at the following address:
Ambac Financial Group, Inc., One State Street Plaza, New York, New York 10004, Attention: Anne Gill-Kelly. 
 ARTICLE 11 
 SUPPLEMENTAL INDENTURES 
 Section 11.01
Supplemental Indentures without Consent of holders of Senior Notes. With respect to Section 901 of the Base Indenture: 
 (a) the “or” shall be deleted at the end of clause (10) thereof; 
 (b) the “.” shall be
deleted at the end of clause (11) thereof and replaced with “;”; 
 (c) the following shall be added at the end
of such Section: 
 “(12) modify the terms of the Put Right upon a failed final remarketing; or 
 (13) modify the interest rate reset or remarketing provisions of the Senior Notes, it being understood that any reset of the interest rate or
modification of the Maturity Date or Redemption Provisions of the Senior Notes in connection with a Successful Remarketing is permitted under the Indenture and does not require any modification to the provisions of the Indenture”; and

 (d) clause (8) thereof shall not apply to the Senior Notes. 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, as of
the day and year first written above. 
  

			
	AMBAC FINANCIAL GROUP, INC.
		
	By:	 	 /s/ David Trick

	Name:	 	David Trick
	Title:	 	Managing Director and Treasurer

  

			
	THE BANK OF NEW YORK, as Trustee
		
	By:	 	 /s/ Franca M. Ferrera

	Name:	 	Franca M. Ferrera
	Title:	 	Assistant Vice President

 EXHIBIT A 
 [IF THIS SENIOR NOTE IS TO BE A GLOBAL SECURITY, INSERT:] THIS SENIOR NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY TRUST COMPANY OR A NOMINEE OF THE
DEPOSITORY TRUST COMPANY. THIS SENIOR NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITORY TRUST COMPANY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND MAY NOT BE
TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TRUST COMPANY TO A NOMINEE OF THE DEPOSITORY TRUST COMPANY OR BY A NOMINEE OF THE DEPOSITORY TRUST COMPANY TO THE DEPOSITORY TRUST COMPANY OR ANOTHER NOMINEE OF THE DEPOSITORY TRUST COMPANY.

 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE
ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 AMBAC FINANCIAL GROUP, INC. 
  

			
	 ̈.	  	9
	.50% Senior Notes due 2021	  	No. $                    
	CUSIP No. 023139 AG3	  	

 AMBAC FINANCIAL GROUP, INC., a corporation organized and existing under the laws of Delaware
(hereinafter called the “Company”, which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to
                    , or registered assigns, the principal sum of up to
                    
($                    ), as set forth in the Schedule of Increases or Decreases In Senior Note attached hereto, on February 15, 2021, or
such earlier maturity date as may be determined by the Company, in consultation with the Remarketing Agent, in connection with a Successful Remarketing (such date is hereinafter referred to as the “Maturity Date”), and to pay
interest thereon from March 12, 2008 or from the most recent Payment Date to which interest has been paid or duly provided for, quarterly in arrears on February 15, May 15, August 15 and November 15, commencing May 15,
2008, or following a Successful Remarketing, on February 15 and August 15, of each year, commencing August 15, 2011 (provided, that the final Payment Date in respect of the Units shall be made on the Purchase Contract Settlement Date
in lieu of May 15, 2011 and such final payment shall include accrued and unpaid interest on the Senior Notes from, and including, May 15, 2011 to, but excluding May 17, 2011), at the rate of 9.50% per annum through and including

 
the day immediately preceding the Remarketing Settlement Date, if any, and thereafter at the Reset Rate, if any, on the basis of a 360-day year consisting of
twelve 30-day months, until the principal hereof is paid or duly provided for or made available for payment, and (to the extent that the payment of such interest shall be legally enforceable) to pay interest, compounded on each Payment Date, at the
rate of 9.50% per annum on any overdue principal and payment of interest through and including the day immediately preceding the Remarketing Settlement Date, if any, and thereafter at the Reset Rate, if any. The amount of interest payable for
any period shorter than a full quarterly period for which interest is computed will be computed on the basis of a 30-day month and, for any period less than a month, on the basis of the actual number of days elapsed per 30-day month. The interest so
payable, and punctually paid or duly provided for, on any Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Senior Note (or one or more Predecessor Senior Notes) is registered at the close of business on the
Record Date for such Payment Date. 
 Payment of the principal of and interest on this Senior Note will be made at the office or agency of
the Company maintained for that purpose in the Borough of Manhattan, New York City, which shall initially be the Corporate Trust Office of the Trustee, in such coin or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; provided, however, that payment of interest may be made at the option of the Company by check mailed to the Holder at such address as shall appear in the Security Register or by wire transfer to
an account appropriately designated by the Holder entitled to payment. Payments with respect to any Global Senior Note will be made by wire transfer to the Depositary. 
 Reference is hereby made to the further provisions of this Senior Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 

Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature, this Senior
Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 

 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal.

 Dated: 
  

			
	AMBAC FINANCIAL GROUP, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	Attest:
		
	By:	 	  

	Name:	 	
	Title:	 	

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 
 This is one of the Senior Notes referred to in the within mentioned Indenture. 
 Dated:                          
  

			
	THE BANK OF NEW YORK,
	as Trustee
		
	By:	 	  

		 	Authorized Officer

 FORM OF REVERSE OF SENIOR NOTE 
 This Senior Note is one of a duly authorized issue of securities of the Company (herein called the “Senior Notes”), issued and to be
issued in one or more series under an Indenture, dated as of February 15, 2006, between the Company and The Bank of New York, as Trustee, (herein called the “Trustee”, which term includes any successor trustee) (the
“Base Indenture”), as supplemented by the Supplemental Indenture No. 1 between the Company and the Trustee (the “Supplemental Indenture” and together with the Base Indenture, the “Indenture”),
to which Indenture reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Senior Notes and of the terms upon which the Senior
Notes are, and are to be, authenticated and delivered. This Senior Note is one of the series designated on the face hereof, limited in aggregate principal amount to $250,000,000 (or up to $287,500,000 to the extent the underwriters’
over-allotment option is exercised). 
 All capitalized terms in this Senior Note and not otherwise defined herein shall have the meaning set
forth in the Indenture. 
 If there has not been a Successful Remarketing prior to the Purchase Contract Settlement Date, the holders of
Senior Notes will have the right to require the Company to purchase their Senior Notes on the Purchase Contract Settlement Date, in the case of Separate Senior Notes upon a notice to the Trustee on or prior to the second Business Day prior to the
Purchase Contract Settlement Date, at a price per Senior Note equal to the principal amount of the applicable Senior Note plus accrued and unpaid interest, all as more fully described in the Supplemental Indenture. 
 The Senior Notes are not entitled to the benefit of any sinking fund and will not be subject to defeasance. 
 If an Event of Default with respect to Senior Notes of this series shall occur and be continuing, the principal of the Senior Notes of this series may be
declared due and payable in the manner and with the effect provided in the Indenture. 
 The Indenture permits, with certain exceptions as
therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Senior Notes at any time by the Company and the Trustee with the consent of the Holders of a majority in
principal amount of the Senior Notes at the time Outstanding. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Senior Notes at the time Outstanding, on behalf of the Holders of all
Senior Notes, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Senior Note shall be conclusive and
binding upon such Holder and upon all future Holders of this Senior Note and of any Senior Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon
this Senior Note. 

 No reference herein to the Indenture and no provision of this Senior Note or of the Indenture shall alter
or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Senior Note at the times, place and rate, and in the coin or currency, herein prescribed. 
 As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Senior Note is registrable in the Securities
Register, upon surrender of this Senior Note for registration of transfer at the office or agency of the Company in any place where the principal of and interest on this Senior Note are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Securities Registrar duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Senior Notes of this series, of authorized
denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 
 The Senior Notes of
this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof. As provided in the Indenture and subject to certain limitations therein set forth, Senior Notes of this series are
exchangeable for a like aggregate principal amount of Senior Notes of this series of a different authorized denomination, as requested by the Holder surrendering the same. 
 No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith. 
 Pursuant to Section 2.04 of the Supplemental Indenture, Senior
Notes corresponding to Applicable Ownership Interests in Senior Notes that are no longer a component of the Corporate Units and are released from the Collateral Account will be issued as Global Senior Notes. Except as otherwise provided in the
Indenture, or except upon recreation of Corporate Units, Senior Notes represented by Global Senior Notes will not be exchangeable for, and will not otherwise be issuable as, Senior Notes in certificated form. Unless and until such Global Senior
Notes are exchanged for Senior Notes in certificated form, Global Senior Notes may be transferred, in whole but not in part, and any payments on the Senior Notes shall be made, only to the Depositary or a nominee of the Depositary, or to a successor
Depositary selected or approved by the Company or to a nominee of such successor Depositary. 
 Prior to due presentment of this Senior Note
for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Senior Note is registered as the owner hereof for all purposes, whether or not this Senior Note be overdue,
and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 
 The Company agrees, and by acceptance
of a Corporate Unit, each holder of a Corporate Unit will be deemed to have agreed (1) for United States federal, state and local income and franchise tax purposes to treat the acquisition of a Corporate Unit as the acquisition of the 

 
Applicable Ownership Interest in a Senior Note and the Purchase Contract constituting the Corporate Unit and (2) to treat the Senior Note underlying the
Applicable Ownership Interest in the Senior Note as indebtedness for United States federal, state and local income and franchise tax purposes. A Holder of Senior Notes may obtain the comparable yield and projected payment schedule for the Senior
Notes, determined by the Company pursuant to Treas. Reg. Sec. 1.1275-4, by submitting a written request for it to the Company at the following address: Ambac Financial Group, Inc., One State Street Plaza, New York, New York 10004, Attention: Anne
Gill-Kelly. 
 THIS SENIOR NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO
THE CONFLICTS OF LAW PROVISIONS THEREOF. 

 ASSIGNMENT 
 FOR VALUE RECEIVED, the undersigned assigns and transfers this Senior Note to: 

	
	  

	  

 (Insert assignee’s social security or tax identification number) 

	
	  

	  

	  

	(Insert address and zip code of assignee)

			
	and irrevocably appoints	 	  

	  

	  

 agent to transfer this Senior Note on the books of the Company. The agent may substitute another to act for him or
her. 
 Date:
                         
  

	
	Signature:
	
	  

	
	Signature Guarantee:
	
	  

	(Sign exactly as your name appears on the other side of this Senior Note)

 SIGNATURE GUARANTEE 
 Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion
Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

  

			
	By:	 	  

	Name	 	
	Title:	 	

  

	
	  

	as Trustee

  

			
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	Attest:	 	
		
	By:	 	  

	Name	 	
	Title:	 	

 SCHEDULE OF INCREASES OR DECREASES IN SENIOR NOTE 
 The following increases or decreases in a part of this Senior Note have been made: 
  

									
	 Date
	  	Amount of decrease
in principal amount
of this Senior Note	  	Amount of increase
in principal amount
of this Senior Note	  	Principal amount of
this Senior Note
following such
decrease (or increase)	  	Signature of
authorized officer
of Trustee
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	

  

 A-9Remarketing Agreement

 Exhibit 4.2 
 REMARKETING AGREEMENT 
 March 12, 2008 
 Credit Suisse Securities (USA) LLC 
 Eleven Madison Avenue 
 New York, NY 10010 
 Citigroup Global Markets Inc. 
 388 Greenwich Street 
 New York, NY 10013 
 Banc of America Securities LLC 
 9 West 57th Street 
 New York, NY 10019 
 UBS Securities LLC 
 299 Park Avenue 
 New York, NY 10171 
 The Bank of New York, as Purchase Contract Agent 
 101 Barclay Street, Floor
8W 
 New York, NY 10286 
 Attention: Corporate Trust Division
– Corporate Finance Unit 
 Ladies and Gentlemen: 
 This Agreement is dated as of March 12, 2008 (the “Agreement”) among Ambac Financial Group, Inc., a Delaware corporation (the “Company”), Credit Suisse Securities (USA) LLC (“Credit
Suisse”), Citigroup Global Markets Inc. (“Citigroup”), Banc of America Securities LLC (“Banc of America”), UBS Securities LLC (“UBS”) and The Bank of New York, a New York banking
corporation, not individually but solely as Purchase Contract Agent (the “Purchase Contract Agent”) and as attorney-in-fact of the holders of Purchase Contracts (as defined in the Purchase Contract Agreement referred to below).

 SECTION 1. Definitions. 
 (a) Capitalized terms used and not defined in this Agreement shall have the meanings set forth in the Purchase Contract Agreement, dated as of March 12, 2008, between the Company and The Bank of New York, as Purchase Contract Agent, as
amended from time to time (the “Purchase Contract Agreement”). 
 (b) As used in this Agreement, the following terms have
the following meanings: 
 “430B Information” means information included in a prospectus then deemed to be a part of the
Registration Statement pursuant to Rule 430B(e) or retroactively deemed to be a part of the Registration Statement pursuant to Rule 430B(f). 

 “Agreement” has the meaning set forth in the first paragraph hereof. 
 “Ambac Assurance” has the meaning set forth in Section 3(g). 
 “Applicable Time” has the meaning set forth in Section 3(a). 
 “Citigroup” has the meaning set forth in the first paragraph hereof. 
 “Commencement Date” has the meaning set forth in Section 3. 
 “Commission” means the Securities and Exchange Commission. 
 “Company” has the meaning set forth in the first paragraph hereof. 
 “Coupon Rate” means the percentage rate per annum at which each Senior Note will bear interest initially. 
 “Credit Suisse” has the meaning set forth in the first paragraph hereof. 
 “Final Prospectus” means the Statutory Prospectus that discloses the Reset Rate, other 430B Information and other final terms of the
Remarketed Senior Notes and otherwise satisfies Section 10(a) of the Securities Act. 
 “First Closing Date” has the
meaning set forth in Section 3(a). 
 “General Disclosure Package” has the meaning set forth in Section 3(c).

 “Indemnified Party” has the meaning set forth in Section 8(a). 
 “Indenture” means the senior indenture, dated as of February 15, 2006 (“Base Indenture”), between the Company and
The Bank of New York, as trustee (“Trustee”), as amended and supplemented from time to time, including without limitation, by the Supplemental Indenture, and by the supplemental indenture, if any, to be dated the Remarketing
Settlement Date with respect to the Remarketed Senior Notes (collectively, “Indenture”). 
 “Initial
Remarketing” has the meaning set forth in Section 2(b). 
 “Issuer Free Writing Prospectus” means an issuer
free writing prospectus, as defined in Rule 433 under the Securities Act. 
 “Material Adverse Effect” means a material
adverse effect on the condition (financial or otherwise), results of operations, business, properties or prospects of the Company and its subsidiaries, taken as a whole. 
 “Maturity Date” means February 15, 2021. 
 “Permitted Free Writing
Prospectus” has the meaning set forth in Section 5(m). 
 “Purchase Contract Agent” has the meaning set forth
in the first paragraph hereof. 
  

 2 

 “Purchase Contract Agreement” has the meaning set forth in the first paragraph hereof.

 “Redemption Provisions” has the meaning set forth in the Supplemental Indenture. 
 “Registration Statement” at any particular time means such registration statement in the form then filed with the Commission, including
any amendment thereto, any document incorporated by reference therein and all 430B Information with respect thereto, that in any case has not been superseded or modified, covering, inter alia, registering the offer and sale of the Remarketed
Senior Notes. For purposes of this definition, 430B Information shall be considered to be included in the Registration Statement as of the time specified in Rule 430B. 
 “Remarketed Senior Notes” means (a) the Senior Notes underlying the Pledged Applicable Ownership Interests in Senior Notes and
(b) the Separate Senior Notes of the Holders of Separate Senior Notes, if any, who have elected to have their Separate Senior Notes be remarketed in such Remarketing pursuant to the terms of the Purchase Contract Agreement, each as identified
to the Remarketing Agent by the Purchase Contract Agent and the Custodial Agent, respectively, by the close of business on the second Business Day immediately preceding the Initial Remarketing Date. 
 “Remarketing” means the remarketing of the Remarketed Senior Notes pursuant to this Agreement. 
 “Remarketing Agent” means any of Credit Suisse, Citigroup, Banc of America or UBS, as appointed as the Remarketing Agent by the Company
pursuant to Section 2(a). 
 “Remarketing Agent Candidates” has the meaning set forth in Section 10. 

“Remarketing Agent Indemnified Party” has the meaning set forth in Section 8(b). 
 “Remarketing Date” means the Initial Remarketing Date, any Subsequent Remarketing Date or the Final Remarketing Date, as the context
requires. 
 “Remarketing Fee” has the meaning set forth in Section 4(a). 
 “Remarketing Materials” means the Statutory Prospectus, the Final Prospectus, any Issuer Free Writing Prospectus, any “road
show” (as defined in Rule 433 of the Securities Act) not constituting an Issuer Free Writing Prospectus, and any other information (including any amendments or supplements thereto) furnished by the Company to the Remarketing Agent for
distribution to investors in connection with the Remarketing. 
 “Remarketing Price” has the meaning set forth in
Section 2(b). 
 “Reset Rate” has the meaning set forth in Section 2(e). 
 “Sarbanes-Oxley Act” means the Sarbanes-Oxley Act of 2002. 
 “Securities” has the meaning set forth in Section 11. 
  

 3 

 “Securities Act” means the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder. 
 “Senior Notes” means the series of notes designated as the 9.50% Senior Notes due
2021, as issued by the Company on the date hereof. 
 “Statutory Prospectus” with reference to any particular time means the
prospectus relating to the Remarketed Senior Notes that is included in the Registration Statement immediately prior to that time, including all 430B Information with respect to the Registration Statement. For purposes of the foregoing
definition, 430B Information shall be considered to be included in the Statutory Prospectus only as of the actual time that form of prospectus (including a prospectus supplement) is filed with the Commission pursuant to Rule 424(b) and not
retroactively. 
 “Subsequent Remarketing” has the meaning set forth in Section 2(c). 
 “Subsequent Remarketing Date” has the meaning set forth in Section 2(c). 
 “Transaction Documents” means this Agreement, the Purchase Contract Agreement, the Pledge Agreement and the Indenture, in each case as
amended or supplemented from time to time. 
 “Wisconsin COI” has the meaning set forth in Section 3(g). 
 SECTION 2. Appointment and Obligations of the Remarketing Agent. 
 (a) On or before the 20th Business Day prior to the Initial Remarketing Date, the Company shall send written notice appointing any of Credit Suisse, Citigroup, Banc of America or UBS as the exclusive Remarketing Agent
for the purpose of (i) Remarketing the Remarketed Senior Notes, (ii) determining, in consultation with the Company, in the manner provided for herein and in the Purchase Contract Agreement and the Indenture, the Reset Rate for the Senior
Notes, (iii) consulting with the Company regarding the Company’s election whether to modify the Maturity Date or Redemption Provisions of the Senior Notes, and (iv) performing such other duties as are assigned to the Remarketing Agent
in the Transaction Documents. Each of Credit Suisse, Citigroup, Banc of America and UBS hereby agrees that if the Company chooses to appoint it as the Remarketing Agent, it shall, subject to the terms and conditions set forth herein, accept such
appointment by the Company as the exclusive Remarketing Agent. 
 (b) The Remarketing Agent shall use its reasonable efforts to remarket (the
“Initial Remarketing”) on the Initial Remarketing Date the Remarketed Senior Notes, at a price that results in proceeds at least equal to 100% of the sum of the Treasury Portfolio Purchase Price and the Separate Senior Notes
Purchase Price (the “Remarketing Price”). 
 (c) In the case of a Failed Remarketing on the Initial Remarketing Date, and so
long as no Successful Remarketing has occurred, the Remarketing Agent shall, on each of the four succeeding Business Days until a Successful Remarketing occurs (each such date, a “Subsequent Remarketing Date” and a Remarketing on a
Subsequent Remarketing Date, a “Subsequent Remarketing”), the Remarketing Agent shall use its reasonable efforts to effect such Subsequent Remarketing in order that such Subsequent Remarketing shall be a Successful Remarketing in
each case for settlement on the Remarketing Settlement Date. 
  

 4 

 (d) If a Successful Remarketing occurs on any Remarketing Date, no further attempts will be made to
remarket. 
 (e) In connection with each Remarketing, the Remarketing Agent shall determine, in consultation with the Company, the rate per
annum, rounded to the nearest one-thousandth (0.001) of one percent per annum, that the Senior Notes should bear (the “Reset Rate”) in order for the Remarketed Senior Notes to have an approximate aggregate market value equal to the
Remarketing Price and that the Remarketing Agent reasonably believes will enable it to remarket all of the Remarketed Senior Notes at the Remarketing Price in such Remarketing, provided that such rate shall not exceed the maximum interest rate
permitted by applicable law. 
 (f) In connection with each Remarketing, the Company shall consult with the Remarketing Agent regarding the
Company’s election whether to modify the Maturity Date and Redemption Provisions of the Senior Notes. 
 (g) [Intentionally Omitted.]

 (h) If a Failed Remarketing shall have occurred, the Remarketing Agent shall advise by telephone (promptly confirmed in writing) the
Depositary, the Purchase Contract Agent and the Company of any such Failed Remarketing. Whether or not there has been a Failed Remarketing will be determined in the sole reasonable discretion of the Remarketing Agent. In the event that a Successful
Remarketing has not occurred by the Final Remarketing Date, the Remarketing Agent shall return Separate Senior Notes submitted for Remarketing, if any, to the Custodial Agent for distribution to the appropriate Holders. 
 (i) In the event of a Successful Remarketing, by approximately 4:30 p.m. (New York City time) on the applicable Remarketing Date, the Remarketing Agent
shall advise, by telephone (confirmed promptly in writing): 
 (i) the Depositary, the Purchase Contract Agent and the Company
of the Reset Rate determined by the Remarketing Agent in such Remarketing; 
 (ii) each purchaser (or the Depositary
Participant thereof) of Remarketed Senior Notes of the Reset Rate and the number of Remarketed Senior Notes such purchaser is to purchase; and 
 (iii) each such purchaser (if other than a Depositary Participant) to give instructions to its Depositary Participant to pay the purchase price no later than the Remarketing Settlement Date in same day funds against
delivery on the Remarketing Settlement Date of the Remarketed Senior Notes purchased through the facilities of the Depositary. 
 The Remarketing Agent shall
also, if required by the Securities Act or the rules and regulations promulgated thereunder, deliver to each purchaser a Statutory Prospectus in connection with the Remarketing. 
  

 5 

 (j) The proceeds from a Successful Remarketing (i) with respect to the Senior Notes underlying the
Applicable Ownership Interests in Senior Notes that are components of the Corporate Units, shall be paid to the Collateral Agent in accordance with Section 5.08 of the Pledge Agreement, as the case may be, and Section 5.02 of the Purchase
Contract Agreement and (ii) with respect to the Separate Senior Notes, shall be paid to the Custodial Agent for payment to the holders of such Separate Senior Notes in accordance with Section 5.02 of the Purchase Contract Agreement and
Section 5.08 of the Pledge Agreement. 
 (k) It is understood and agreed that the Remarketing Agent shall not have any obligation
whatsoever to purchase any Remarketed Senior Notes, whether in the Remarketing or otherwise, and shall in no way be obligated to provide funds to make payment upon tender of Senior Notes for Remarketing or to otherwise expend or risk its own funds
or incur or to be exposed to financial liability in the performance of its duties under this Agreement, and without limitation of the foregoing, the Remarketing Agent shall not be deemed an underwriter of the Remarketed Senior Notes. The Company
shall similarly not be obligated in any case to provide funds to make payment upon tender of the Senior Notes for Remarketing. 
 SECTION 3.
Representations and Warranties of the Company. The Company represents and warrants (i) on and as of the date any Remarketing Materials are first distributed in connection with the Remarketing (to the extent such representations and
warranties are applicable as of such date) (the “Commencement Date”), (ii) on and as of the applicable Remarketing Date and (iii) on and as of the Remarketing Settlement Date, that: 
 (a) Each of the representations and warranties of the Company as set forth in Section 2 (except for clauses (e), (k), (l), (n), (o), (p), (q), (r),
(s), (y), (bb), (jj), (ll), (nn) and (oo) of such section and the first paragraph of clause (a)) of the Underwriting Agreement dated as of March 6, 2008 relating to the issuance of Equity Units by the Company among the Company and the
representatives of the underwriters identified in Schedule A thereto (the “Underwriting Agreement”), is true and correct as if made on each of the dates specified above; provided that for purposes of this Section 3(a), any
reference in such section of the Underwriting Agreement to (i) the “Underwriter” or “Underwriters” or the “Representative” or “Representatives” shall be deemed to refer to the
Remarketing Agent, (ii) the “Offered Securities”, “Component Securities” and “Senior Notes” shall be deemed to refer to the Remarketed Senior Notes, (iii) the “Registration
Statement”, the “Final Prospectus”, the “Statutory Prospectus” and the “Issuer Free Writing Prospectus” shall be deemed to refer to such terms as defined herein, (iv) the
“First Closing Date”, the “Optional Closing Date” and the “Closing Date” shall be each deemed to refer to the Remarketing Settlement Date, (v) “Applicable Time” shall be deemed
to refer to the time immediately prior to the time at which sales of the Remarketed Senior Notes are confirmed with investors therein on the Remarketing Date, (vi) the “Indenture” shall be deemed to refer to such term as
defined herein; (vii) the “Securities Agreements” shall be deemed to refer to the “Transaction Documents”; (viii) the “Common Stock Underwriting Agreement” and “Private Placement
Agreement” shall be removed; (ix) “this Agreement”, the “Remarketing Agreement”, “hereof”, “herein” and all references of similar import, shall be deemed to mean and
refer to this Remarketing Agreement and (x) “the date hereof”, “the date of this Agreement” and all similar references shall be deemed to refer to the applicable Remarketing Date; provided further that if the
Company is not a “well known seasoned issuer” at such time, the representations in Sections 2(c) and (d) of the Underwriting Agreement shall be 

  

 6 

 
replaced with representations applicable to and customary for Commission filers that are not “well known seasoned issuers”. 
 (b) Registration Statement. The Company has filed with the Commission a registration statement on Form S-3, including a related Statutory
Prospectus or Statutory Prospectuses, covering the registration of the Remarketed Senior Notes under the Securities Act, and will use its commercially reasonable efforts to ensure that such registration statement will become and remain effective
through the Remarketing Settlement Date. 
 (c) General Disclosure Package. As of the Applicable Time, neither (i) the General
Use Issuer Free Writing Prospectus(es) issued at or prior to the Applicable Time, the most recent Statutory Prospectus distributed to investors generally, and the other information, if any, that will be included in any term sheet prepared pursuant
to Section 5(n) to be included in the General Disclosure Package, all considered together (collectively, the “General Disclosure Package”), nor (ii) any individual Limited Use Issuer Free Writing Prospectus or any
“road show” (as defined in Rule 433 of the Securities Act) not constituting an Issuer Free Writing Prospectus, in each case when considered together with the General Disclosure Package, included 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. The preceding sentence does not apply to statements in or omissions from any
Statutory Prospectus or any Issuer Free Writing Prospectus in reliance upon and in conformity with written information furnished to the Company by the Remarketing Agent specifically for use therein, it being understood and agreed that the only such
information furnished to the Company by the Remarketing Agent consists of the information described as such in Section 8(a) herein. 
 (d) Accurate Disclosure. The statements in or incorporated by reference into the Registration Statement, General Disclosure Package and the Final Prospectus under headings substantially similar to “Description of the Remarketed
Senior Notes”, “Description of Debt Securities”, “Business—Insurance Regulatory Matters”, “Business—Business Segments—Reinsurance” and “Certain United States Federal Income Tax
Consequences”, insofar as such statements summarize legal matters, agreements, documents or proceedings discussed therein, are accurate and fair summaries of such legal matters, agreements, documents or proceedings in all material respects and
present the information required to be shown therein. 
 (e) Defaults. No default or event of default, and no event that with the
passage of time or the giving of notice or both would become an event of default, has occurred and is continuing, under any of the Securities Agreements (as defined in the Underwriting Agreement). 
 (f) The Remarketing Agreement. This Agreement has been duly authorized, executed and delivered by the Company and constitutes a valid and binding
obligation of the Company, enforceable in accordance with its terms, except as may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to or affecting creditors’ rights generally and subject to
general principles of equity (regardless of whether considered in a proceeding in equity or at law). This Agreement conforms in all material respects to the respective statements relating thereto contained in the General Disclosure Package and in
the Final Prospectus. 
  

 7 

 (g) Statutory Financial Statements. The (i) audited statutory financial statements of Ambac
Assurance Corporation (“Ambac Assurance”) for the most recent fiscal year ended that have been filed with Office of the Commissioner of Insurance for the State of Wisconsin (“Wisconsin COI”) have been prepared and
fairly present in all material respects the admitted assets, liabilities, surplus, results of operations and cash flows of Ambac Assurance at the dates and for the periods (as the case may be) indicated, in accordance with statutory accounting
practices prescribed or permitted by the Wisconsin COI consistently applied throughout such period (excepted as specified therein); and (ii) unaudited quarterly statutory financial statements of Ambac Assurance for the interim quarter-ends
since such fiscal year end-date that have been required to be filed with the Wisconsin COI have been prepared using the same statutory accounting principles applied on a basis consistent with Ambac Assurance’s audited statutory financial
statements referenced in clause (i) above. 
 SECTION 4. Fees. 
 (a) In the event of a Successful Remarketing of the Remarketed Senior Notes, the Company shall pay the Remarketing Agent a remarketing fee typical for a
transaction of this type, to be reasonably agreed upon in writing by the Company and the Remarketing Agent prior to any such Remarketing (the “Remarketing Fee”). Such Remarketing Fee shall be paid by the Company on the Remarketing
Settlement Date in cash by wire transfer of immediately available funds to accounts designated by the Remarketing Agent. 
 SECTION 5.
Covenants of the Company. The Company covenants and agrees as follows: 
 (a) The Company shall prepare the Registration Statement and
the Statutory Prospectus (including the Final Prospectus), in a form reasonably approved by the Remarketing Agent, shall file any such Statutory Prospectus (including the Final Prospectus) pursuant to the Securities Act within the period required by
the Securities Act and the rules and regulations thereunder and shall use its commercially reasonable best efforts to cause the Registration Statement to be declared effective by the Commission prior to the second Business Day immediately preceding
the Initial Remarketing Date. 
 (b) From the Commencement Date through the Remarketing Settlement Date, the Company shall promptly notify
the Remarketing Agent in writing of any proposal to amend or supplement the Registration Statement or any Statutory Prospectus, including the Final Prospectus, at any time and will offer the Remarketing Agent a reasonable opportunity to comment on
any such amendment or supplement, and shall also promptly file with the Commission any amendment to the Registration Statement or any Statutory Prospectus or any supplement to any Statutory Prospectus that may, in the reasonable judgment of the
Company or the Remarketing Agent, be required by the Securities Act or requested by the Commission; provided, that the Company shall not file any such amendment or supplement that shall be reasonably disapproved by the Remarketing Agent (except for
any filing or report required, in the reasonable judgment of the Company, by the Exchange Act) promptly after reasonably notice of such disapproval. 
  

 8 

 (c) The Company shall advise the Remarketing Agent, promptly after it receives notice thereof, of the
time when any amendment to the Registration Statement has been filed or becomes effective or any supplement to the Final Prospectus or any amended Final Prospectus has been filed and to furnish the Remarketing Agent with copies thereof. 

(d) The Company shall file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the
Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date of the Final Prospectus and for so long as the delivery of a Final Prospectus is required in connection with the offering or sale of the
Remarketed Senior Notes. 
 (e) The Company shall file all Issuer Free Writing Prospectuses required to be filed by the Company with the
Commission pursuant to Rule 433(d) under the Securities Act. 
 (f) The Company shall advise in writing the Remarketing Agent, promptly after
it receives notice thereof, of (i) the issuance by the Commission of any stop order or of any order preventing or suspending the use of any Statutory Prospectus, including the Final Prospectus, of the suspension of the qualification of any of
the Remarketed Senior Notes for offering or sale in any jurisdiction, of the initiation or threatening of any proceeding for any such purpose, or of any request by the Commission for the amending or supplementing of the Registration Statement or any
Statutory Prospectus (including the Final Prospectus) or for additional information, and (ii) the receipt by the Company of any notification with respect to the suspension of the qualification of the Remarketed Senior Notes in any jurisdiction
or the institution or threatening of any proceedings for such purpose; and, in the event of the issuance of any stop order or of any order preventing or suspending the use of any Statutory Prospectus, including the Final Prospectus, or suspending
any such qualification as described in (i) and (ii), to use promptly its commercially reasonable best efforts to obtain its withdrawal. 
 (g) The Company shall furnish promptly to the Remarketing Agent such copies of the following documents as the Remarketing Agent shall reasonably request: (A) conformed copies of the Registration Statement as originally filed with the
Commission and each amendment thereto (in each case excluding exhibits); (B) the Statutory Prospectus, including the Final Prospectus, and any amendments or supplements thereto; and (C) any document, consent or certificate incorporated by
reference in the Statutory Prospectus (excluding exhibits thereto); and, if at any time when delivery of a prospectus (or in lieu thereof, the notice referred to in Rule 173(a) under the Securities Act) is required (or but for the exemption in Rule
172 of the Securities Act would be required) in connection with the Remarketing, any event shall have occurred as a result of which the Statutory Prospectus, including the Final Prospectus, 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 when such Statutory Prospectus, including the Final Prospectus (or in
lieu thereof, the notice referred to in Rule 173(a) under the Securities Act) is delivered, not misleading, or if for any other reason it shall be necessary during such same period to amend or supplement the Statutory Prospectus, including the Final
Prospectus, or to file under the Exchange Act any document incorporated by reference in the Statutory Prospectus, including the Final Prospectus, in order to comply with the Securities Act or the Exchange Act, to notify the Remarketing Agent and,
upon its request, to file such document and to prepare and furnish 

  

 9 

 
without charge to the Remarketing Agent and to any dealer in securities as many copies as the Remarketing Agent may from time to time reasonably request of
an amended or supplemented Statutory Prospectus that will correct such statement or omission or effect such compliance. 
 (h) The Company
will timely file all reports required to be filed under the Exchange Act as necessary in order to make generally available to its securityholders an earning statement satisfying the provisions of Section 11(a) of the Act and Rule 158
promulgated thereunder. 
 (i) The Company shall take such action as the Remarketing Agent may reasonably request in order to qualify the
Remarketed Senior Notes for offer and sale under the securities or “blue sky” laws of such jurisdictions as the Remarketing Agent may reasonably request; provided that in no event shall the Company be required to qualify as a foreign
corporation or to file a general consent to service of process in any jurisdiction. 
 (j) The Company shall furnish the Remarketing Agent
with such information and documents as the Remarketing Agent may reasonably request in connection with the transactions contemplated hereby, and make reasonably available to the Remarketing Agent and any accountant, attorney or other advisor
retained by the Remarketing Agent such information that parties would customarily require in connection with a due diligence investigation conducted in accordance with applicable securities laws and use reasonable best efforts to cause the
Company’s officers, directors, employees and accountants to participate, upon reasonable notice and for a reasonable period of time, in such discussions at times reasonably agreed upon and to supply all such information reasonably requested by
any such Person in connection with such investigation. 
 (k) The Company will comply with all applicable securities and other laws, rules
and regulations, including, without limitation, the Sarbanes-Oxley Act, and use its reasonable best efforts to cause the Company’s directors and officers, in their capacities as such, to comply with such laws, rules and regulations, including,
without limitation, the provisions of the Sarbanes-Oxley Act, unless any failure to comply would not, individually or in the aggregate, be reasonably likely to have a Material Adverse Effect and provided that any non-compliance would not be
reasonably likely to adversely affect the performance by the Company of its obligations under this Agreement, the other Transaction Documents or the Remarketed Senior Notes (including the issuance and sale of the Remarketed Senior Notes).

 (l) Between the Commencement Date and the Remarketing Settlement Date, the Company will not, without the prior written consent of the
Remarketing Agent, directly or indirectly, issue, sell, offer or contract to sell, grant any option for the sale of, or otherwise dispose of, securities substantially similar to the Remarketed Senior Notes. 
 (m) The Company represents and agrees that, unless it obtains the prior consent of the Remarketing Agent, and the Remarketing Agent represents and agrees
that, unless it obtains the prior consent of the Company, it has not made and will not make any offer relating to the Remarketed Senior Notes that would constitute an Issuer Free Writing Prospectus, or that would otherwise constitute a “free
writing prospectus,” as defined in Rule 405 of the Securities Act, required to be filed with the Commission. Any such free writing prospectus consented to in writing by the Company and the Remarketing Agent is hereinafter referred to as a
“Permitted 

  

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Free Writing Prospectus.” The Company represents that it has treated and agrees that it will treat each Permitted Free Writing Prospectus as an
“issuer free writing prospectus,” as defined in Rule 433 of the Securities Act, and has complied and will comply with the requirements of Rules 164 and 433 of the Securities Act applicable to any Permitted Free Writing
Prospectus, including timely Commission filing where required, legending and record keeping. 
  

	
	 (n) The Company will prepare a final term sheet relating to the Remarketed Senior Notes, containing only
information that
describes the final terms of the Remarketed Senior Notes after providing the Remarketing Agent and its legal counsel with a
reasonable opportunity to review and comment on such final term sheet (such final term sheet
to be in form and substance as last
reviewed by the Remarketing Agent and the Company), and will file such final term sheet within the period required by Rule
 433(d)(5)(ii) of the Securities Act following the date such final terms have been established for the Remarketed Senior Notes. Any
such final term sheet is an Issuer Free Writing Prospectus and a Permitted Free
Writing Prospectus for purposes of this Agreement.
The Company also consents to the use by the Remarketing Agent of a free writing prospectus that contains only (i)(x) information
describing the preliminary terms of the Remarketed Senior Notes
or the Remarketing or (y) information that describes the final terms
of the Remarketed Senior Notes or the Remarketing and that is included in the final term sheet of the Company contemplated in the
first sentence of this
subsection or (ii) other information that is not “issuer information,” as defined in Rule 433 of the Securities Act,
it being understood that any such free writing prospectus referred to in clause (i) or
(ii) above shall not be an Issuer Free Writing
Prospectus for purposes of this Agreement.

 SECTION 6. Payment of Expenses. The Company will pay all expenses incident to the
performance of its obligations under this Agreement, including but not limited to any filing fees and other expenses (including fees, expenses and disbursements of the Company’s and Remarketing Agent’s respective counsel and the
Company’s accountants and other advisors and agents) incurred in connection with (i) the preparation, printing, filing and distribution of the Registration Statement (including financial statements and exhibits) as originally filed and of
each amendment thereto; (ii) expenses incurred in preparing, printing and distributing any Statutory Prospectuses, Issuer Free Writing Prospectuses, the Final Prospectus and any other Remarketing Materials (including any amendments and
supplements thereto) to the Remarketing Agent; (iii) qualification of the Remarketed Senior Notes for sale and determination of their eligibility for investment under the laws of such jurisdictions as the Remarketing Agent designates and the
preparation and printing of memoranda relating thereto (including filing fees and the reasonable fees and disbursements of counsel for the Remarketing Agent in connection therewith and in connection with the preparation of any survey of the blue sky
laws and any legal investment survey, or any supplements thereto, together with the costs of the preparation, printing and delivery of any such surveys to the Remarketing Agent); (iv) the preparation, issuance and delivery of the Remarketed
Senior Notes to the Remarketing Agent, including any taxes or other duties payable upon the sale, issuance or delivery of the Remarketed Senior Notes to the Remarketing Agent; (v) costs and expenses related to the review by the Financial
Industry Regulatory Authority, Inc. of the Remarketed Senior Notes (including filing fees and the fees and expenses of counsel for the Remarketing Agent relating to such review); (vi) costs and expenses relating to investor presentations or any
“road show” in connection with the offering and sale of the Remarketed Senior Notes including, without limitation, any travel expenses of the Company’s officers and employees and any other expenses of the Company including 

  

 11 

 
transportation expenses; (vii) fees and expenses in connection with the registration of the Remarketed Senior Notes under the Exchange Act, if any;
(viii) the fees and expenses of the Trustee, Purchase Contract Agent and Collateral Agent, including the fees and disbursements of counsel for each such party in connection with the Indenture and the Remarketed Senior Notes; and (ix) the
fees charged by nationally recognized statistical rating organizations for the rating of the Remarketed Senior Notes, if applicable. 
 SECTION 7. Conditions to the Remarketing Agent’s Obligation. The obligations of the Remarketing Agent hereunder shall be subject to the accuracy, in all material respects (except to the extent that materiality is already
addressed therein), of the representations and warranties of the Company herein (as though made on the applicable Remarketing Date and the Remarketing Settlement Date), to the accuracy of the statements of Company officers contained in
officer’s certificates delivered pursuant to the provisions hereof, to the performance, in all material respects, by the Company of its obligations and to the following additional conditions: 
 (a) Subsequent to the Commencement Date, there shall not have occurred (i) any change or development in the condition (financial or otherwise),
results of operations, business prospects or properties or of the Company and its subsidiaries taken as a whole which, in the judgment of the Remarketing Agent, is material and adverse and makes it impractical or inadvisable to proceed with the
Remarketing or the delivery of the Remarketed Senior Notes on the terms and in the manner contemplated in the Transaction Documents; (ii) any change in U.S. or international financial, political or economic conditions or currency exchange rates
or exchange controls the effect of which is to make it, in the judgment of the Remarketing Agent, impractical to proceed with the Remarketing or the delivery of the Remarketed Senior Notes on the terms and in the manner contemplated in the
Transaction Documents, whether in the primary market or in respect of dealings in the secondary market; (iii) any suspension or material limitation of trading in securities generally on the New York Stock Exchange, or any setting of minimum or
maximum prices for trading on such exchange; (iv) any suspension of trading of any securities of the Company on any exchange or in the over-the-counter market; (v) any banking moratorium declared by any U.S. federal or New York
authorities; (vi) any major disruption of settlements of securities, payment, or clearance services in the United States or any other country where such Company securities are listed or (vii) any attack on, outbreak or escalation of
hostilities or act of terrorism involving the United States, any declaration of war by Congress or any other national or international calamity or emergency if, in the judgment of the Remarketing Agent, the effect of any such attack, outbreak,
escalation, act, declaration, calamity or emergency is such as to make it impractical or inadvisable to proceed with the Remarketing or the delivery of the Remarketed Senior Notes on the terms and in the manner contemplated in the Transaction
Documents. 
 (b) The Statutory Prospectus, including the Final Prospectus, shall have been timely filed with the Commission; the final term
sheet contemplated by Section 5(n) of this Agreement and any other material required to be filed by the Company pursuant to Rule 433(b) of the Securities Act shall have been filed with the Commission within the applicable time periods
prescribed for such filings by Rule 433 of the Securities Act; no stop order suspending the effectiveness of the Registration Statement, if any, or any part thereof shall have been issued and no proceeding for that purpose shall have been initiated
or threatened by the Commission; and 

  

 12 

 
any request of the Commission for inclusion of additional information in the Registration Statement or the Final Prospectus or otherwise shall have been
complied with. 
 (c) The Remarketing Agent shall have received certificates, dated each of the applicable Remarketing Date and the
Remarketing Settlement Date, of the President or Chief Executive Officer, a Vice Chairman or an Executive Vice President of the Company and a principal financial or accounting officer of the Company in which such officers shall state that: the
representations and warranties of the Company in this Agreement are true and correct in all material respects (except to the extent that materiality is already addressed therein) with the same force and effect as though expressly made at and as of
such date; the Company has complied with all agreements in all material respects and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to such date; 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 best of their knowledge and after reasonable investigation, are contemplated by the Commission; and, subsequent to the respective dates of the most recent
audited financial statements in the General Disclosure Package, there has been no Material Adverse Effect. 
 (d) On each of the applicable
Remarketing Date and the Remarketing Settlement Date, the Remarketing Agent shall have received letters addressed to the Remarketing Agent and dated such date, in form and substance satisfactory to the Remarketing Agent, of KPMG LLP (or other
nationally recognized independent public accountants of the Company), the independent accountants of the Company, containing statements and information of the type ordinarily included in accountants’ “comfort letters” with respect to
certain financial information contained in the Remarketing Materials. 
 (e) The General Counsel or Assistant General Counsel for each of the
Company and Ambac Assurance shall have furnished to the Remarketing Agent his or her respective opinion, addressed to the Remarketing Agent and dated the Remarketing Settlement Date, in form and substance reasonably satisfactory to the Remarketing
Agent addressing such matters as are set forth in such counsel’s opinion furnished pursuant to Sections 7(d)(ii) and 7(d)(iii), as applicable, of the Underwriting Agreement, adapted as necessary to relate to the securities being remarketed
hereunder and to the Remarketing Materials, if any, or to any changed circumstances or events occurring subsequent to the date of this Agreement, such adaptations being reasonably acceptable to counsel to the Remarketing Agent. 
  

	
	 (f) A nationally recognized legal counsel acting as outside counsel for the Company, shall have furnished to the
Remarketing
Agent its opinion, addressed to the Remarketing Agent and dated the Remarketing Settlement Date, in form and substance reasonably
satisfactory to the Remarketing Agent and addressing such matters as are set forth in the opinions
furnished pursuant to Section
 7(d)(i) of the Underwriting Agreement, adapted as necessary to relate to the Remarketed Senior Notes and to the
Remarketing
Materials, if any, or to any changed circumstances or events occurring subsequent to the date of this Agreement, such adaptations
being reasonably acceptable to counsel to the Remarketing Agent.

 (g) Outside counsel for the Remarketing Agent shall have furnished to the Remarketing Agent its
opinion, addressed to the Remarketing Agent and dated the applicable Remarketing Date, in form and substance reasonably satisfactory to the Remarketing Agent. 
  

 13 

 (h) Outside counsel for the Trustee shall have furnished to the Remarketing Agent its opinion, addressed
to the Remarketing Agent and dated the Remarketing Settlement Date, in form and substance reasonably satisfactory to the Remarketing Agent, with respect to the due authorization, execution and delivery of the Indenture by the Trustee and the due
authentication by the Trustee of the Remarketed Senior Notes. 
 (i) At the applicable Remarketing Date and the Remarketing Settlement Date,
counsel for the Remarketing Agent shall have been furnished with such documents and opinions as they may reasonably require for the purpose of enabling them to pass upon the issuance and sale of the Remarketed Senior Notes as contemplated herein, or
in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, contained herein; and all proceedings taken by the Company in connection with the issuance and sale of the Remarketed Senior
Notes as contemplated herein shall be reasonably satisfactory in form and substance to the Remarketing Agent and counsel for the Remarketing Agent. 
 If any condition specified in this Section 7 is not satisfied when and as required to be satisfied, this Agreement may be terminated by the Remarketing Agent by notice to the Company at any time on or prior to the Remarketing
Settlement Date, which termination shall be without liability on the part of any party to any other party, except that Section 6, Section 8 and Section 9 shall at all times be effective and shall survive such termination. 

SECTION 8. Indemnification. 
 (a)
Indemnification of Remarketing Agent. The Company will indemnify and hold harmless the Remarketing Agent, its partners, members, directors, officers, employees, agents, affiliates and each person, if any, who controls the Remarketing Agent
within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (each, an “Indemnified Party”), against any and all losses, claims, damages or liabilities, joint or several, to which such
Indemnified Party may become subject, under the Securities Act, the Exchange Act, other Federal or state statutory law or regulation 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 any material fact contained in any part of the Registration Statement at any time, any Statutory Prospectus as of any time, the Final Prospectus, any Issuer Free Writing Prospectus,
any “road show” (as defined in Rule 433 of the Securities Act) not constituting an Issuer Free Writing Prospectus or any other Remarketing Materials, or arise out of or are based upon the omission or alleged omission of a material fact
required to be stated therein or necessary to make the statements therein not misleading, and will reimburse each Indemnified Party for any legal or other expenses reasonably incurred by such Indemnified Party in connection with investigating or
defending against any loss, claim, damage, liability, action, litigation, investigation or proceeding whatsoever (whether or not such Indemnified Party is a party thereto), whether threatened or commenced, and in connection with the enforcement of
this provision with respect to any of the above as such expenses are incurred; provided, however, that the Company 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 an
untrue statement or alleged untrue statement in or omission or alleged omission from any of such documents in reliance upon and in conformity with written information furnished to the Company by the Remarketing Agent specifically for use therein; it
being understood and agreed that the only such information furnished by the 

  

 14 

 
Remarketing Agent to the Company expressly for use in the Registration Statement, any Statutory Prospectus, the Final Prospectus or any other Remarketing
Materials is the information set forth in good faith in a certificate to be provided by the Remarketing Agent on or prior to the Remarketing Date. 
 (b) Indemnification of Company. The Remarketing Agent will indemnify and hold harmless the Company, each of its directors and each of its officers who signs a Registration Statement and each person, if any, who controls the Company
within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (each, a “Remarketing Agent Indemnified Party”), against any losses, claims, damages or liabilities to which such Remarketing Agent
Indemnified Party may become subject, under the Securities Act, the Exchange Act, other Federal or state statutory law or regulation 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 any material fact contained in any part of the Registration Statement at any time, any Statutory Prospectus as of any time, the Final Prospectus, any Issuer Free Writing Prospectus
or any other Remarketing Materials, or arise out of or are based upon the omission or the alleged omission of a material fact required to be stated therein 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 furnished to the Company by the Remarketing Agent specifically for use
therein as specified in the last sentence of clause (a) above, and will reimburse any legal or other expenses reasonably incurred by such Remarketing Agent Indemnified Party in connection with investigating or defending against any such loss,
claim, damage, liability, action, litigation, investigation or proceeding whatsoever (whether or not such Remarketing Agent Indemnified Party is a party thereto), whether threatened or commenced, based upon any such untrue statement or omission, or
any such alleged untrue statement or omission as such expenses are incurred. 
 (c) Actions against Parties; Notification. Promptly
after receipt by an indemnified party under this Section 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 subsection (a) or
(b) above, notify the indemnifying party of the commencement thereof; but the failure to notify the indemnifying party shall not relieve it from any liability that it may have under subsection (a) or (b) above except to the
extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided further that the failure to notify the indemnifying party shall not relieve it from any liability that it may have
to an indemnified party otherwise than under subsection (a) or (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 satisfactory to such indemnified party (who shall not, except with the
consent of the indemnified party, be counsel to the indemnifying party), and after notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof, the indemnifying party will not be liable to such
indemnified party under this Section for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof other than reasonable costs of investigation. No indemnifying party shall, without the
prior written consent of the indemnified party, effect any settlement of any pending 

  

 15 

 
or threatened action in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such
indemnified party unless such settlement (i) includes an unconditional release of such indemnified party from all liability on any claims that are the subject matter of such action and (ii) does not include a statement as to, or an
admission of, fault, culpability or a failure to act by or on behalf of an indemnified party. 
 SECTION 9. Contribution. If the
indemnification provided for in this Agreement is unavailable or insufficient to hold harmless an indemnified party under Section 8(a) or (b) above, then each indemnifying party shall contribute to the amount paid or payable by
such indemnified party as a result of the losses, claims, damages or liabilities referred to in Section 8(a) or (b) above (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the
one hand and the Remarketing Agent on the other from the Remarketing or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits
referred to in clause (i) above but also the relative fault of the Company on the one hand and the Remarketing Agent on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities as
well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Remarketing Agent on the other shall be deemed to be in the same proportion as the total net proceeds from the Remarketing
(before deducting expenses) received by the Company bear to the total Remarketing Fee received by the Remarketing Agent. The relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or the Remarketing Agent and the parties’ relative intent, knowledge, access to information and opportunity to correct or
prevent such untrue statement or omission. The amount paid by an indemnified party as a result of the losses, claims, damages or liabilities referred to in the first sentence of this Section 9 shall be deemed to include any legal or other
expenses reasonably incurred by such indemnified party in connection with investigating or defending any action or claim which is the subject of this Section 9. The Company and the Remarketing Agent agree that it would not be just and equitable
if contribution pursuant to this Section 9 were determined by pro rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to in this Section 9. 
 Notwithstanding the provisions of this Section 9, the Remarketing Agent shall not be required to contribute any amount in excess of the amount by which the
Remarketing Fee exceeds the amount of any damages which the Remarketing Agent has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The remedies provided for in Sections 8 and 9 are not exclusive and shall not
limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity. 
 SECTION 10. Resignation and
Removal of the Remarketing Agent. 
 Either Credit Suisse, Citigroup, Banc of America or UBS (the “Remarketing Agent
Candidates”) may resign and be discharged from their duties and obligations hereunder, and the 

  

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Company may remove either of the Remarketing Agent Candidates, by giving 30 days’ prior written notice to the Company, the Purchase Contract Agent and
the Depositary; provided, however, that if only one Remarketing Agent Candidate remains, no such resignation nor any such removal of such Remarketing Agent Candidate shall become effective until the Company shall have appointed at least one
nationally recognized broker-dealer as successor Remarketing Agent and such successor Remarketing Agent shall have entered into a remarketing agreement with the Company, in which it shall have agreed to conduct the Remarketing in accordance with the
Transaction Documents in all material respects. In any such case, the Company will use commercially reasonable efforts to appoint a successor Remarketing Agent and enter into such a remarketing agreement with such person as soon as reasonably
practicable. The provisions of Section 8 and Section 9 shall survive the resignation or removal of any Remarketing Agent Candidate pursuant to this Agreement. 
 SECTION 11. Dealing in Securities. The Remarketing Agent, when acting as a Remarketing Agent or in its individual or any other capacity, may, to the extent permitted by law, buy, sell, hold and deal in any of
the Remarketed Senior Notes, Corporate Units, Treasury Units or any of the securities of the Company (collectively, the “Securities”). The Remarketing Agent may exercise any vote or join in any action which any beneficial owner of
such Securities may be entitled to exercise or take pursuant to the Indenture with like effect as if it did not act in any capacity hereunder. 
 SECTION 12. Remarketing Agent’s Performance; Duty of Care. The duties and obligations of the Remarketing Agent shall be determined solely by the express provisions of this Agreement and the Transaction Documents. No implied
covenants or obligations of or against the Remarketing Agent shall be read into this Agreement or any of the Transaction Documents. In the absence of bad faith or gross negligence on the part of the Remarketing Agent, the Remarketing Agent may
conclusively rely upon any document furnished to it, as to the truth of the statements expressed in any of such documents. The Remarketing Agent shall be protected in acting upon any document or communication reasonably believed by it to have been
signed, presented or made by the proper party or parties except as otherwise set forth herein. The Remarketing Agent shall have no obligation to determine whether there is any limitation under applicable law on the Reset Rate on the Senior Notes or,
if there is any such limitation, the maximum permissible Reset Rate on the Senior Notes. The Remarketing Agent shall rely solely upon written notice from the Company (which the Company agrees to provide prior to the Initial Remarketing Date or the
Final Remarketing Date, as applicable) as to whether or not there is any such limitation and, if so, the maximum permissible Reset Rate. The Remarketing Agent, acting under this Agreement, shall incur no liability to the Company or to any holder of
Remarketed Senior Notes in its individual capacity or as Remarketing Agent for any action or failure to act, on its part in connection with a Remarketing or otherwise, except if such liability resulted from its failure to comply with the material
terms of this Agreement or the bad faith, gross negligence or willful misconduct on its part. The provisions of this Section 12 shall survive the termination of this Agreement and shall survive the resignation or removal of any Remarketing
Agent pursuant to this Agreement. 
 SECTION 13. Termination. This Agreement shall automatically terminate (i) as to the
Remarketing Agent on the effective date of the resignation or removal of the Remarketing Agent pursuant to Section 10 and (ii) on the earlier of (x) a Termination Event and (y) the Purchase 

  

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Contract Settlement Date. If this Agreement is terminated pursuant to any of the other provisions hereof, except as otherwise provided herein, the Company
shall not be under any liability to the Remarketing Agent and the Remarketing Agent shall not be under any liability to the Company, except that if this Agreement is terminated by the Remarketing Agent because of any failure or refusal on the part
of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, the Company will reimburse the Remarketing Agent for all of its out-of-pocket expenses (including the fees and disbursements of its counsel) reasonably
incurred by it. Notwithstanding any termination of this Agreement, in the event that there has been a Successful Remarketing, the obligations set forth in Section 4 hereof shall survive and remain in full force and effect until all amounts
payable under said Section 4 shall have been paid in full. In addition, Section 8, Section 9, Section 12 and Section 13 hereof shall survive the termination of this Agreement or the resignation or removal of the Remarketing
Agent. 
 SECTION 14. Notices. All communications hereunder will be in writing and, if sent to the Remarketing Agent Candidates (or,
once a Remarketing Agent has been chosen, to the Remarketing Agent only), will be mailed, delivered or telegraphed and confirmed to the Credit Suisse Securities (USA) LLC, Eleven Madison Avenue, New York, NY 10010-3629, Attention: LCD-IBD, and to
the General Counsel, Citigroup Global Markets Inc., 388 Greenwich Street, New York, NY, 10013, Attention: General Counsel, facsimile no. (212) 816-7912, and to Banc of America Securities LLC, 9 West 57th Street, New York, NY 10019; and to UBS
Securities LLC, 299 Park Avenue, New York, NY, 10171 Attn: Syndicate Department, or, if sent to the Company, will be mailed, delivered or telegraphed and confirmed to it at One State Street Plaza, New York, NY 10004, Attention: General Counsel; or
if sent to the Purchase Contract Agent, will be mailed or delivered and confirmed to it as The Bank of New York, 101 Barclay Street-8W, New York, NY 10286, Attention Corporate Trust Division – Corporate Finance Unit. 
 SECTION 15. Persons Entitled to Benefit of Agreement. This Agreement will inure to the benefit of and be binding upon the parties hereto and their
respective successors and the officers and directors and controlling and other persons referred to in Sections 8 and 9, and no other person will have any right or obligation hereunder. 
 SECTION 16. Survival. The respective indemnities, representations, warranties and agreements of the Company and the Remarketing Agent contained in
this Agreement or made by or on behalf of them, respectively, pursuant to this Agreement, shall survive any Remarketing and shall remain in full force and effect, regardless of any investigation made by or on behalf of any of them or any person
controlling any of them. 
 SECTION 17. Governing Law. This Agreement shall be governed by, and construed in accordance with, the
laws of the State of New York, without regard to the conflicts of laws principles thereof. 
 SECTION 18. Judicial Proceedings.

 (a) Each party 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. Each party hereby irrevocably and unconditionally waives any objection to the laying of venue of any suit or 

  

 18 

 
proceeding arising out of or relating to this Agreement or the transactions contemplated hereby in Federal and state courts in the Borough of Manhattan in
New York City and irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such suit or proceeding in any such court has been brought in an inconvenient forum. 
 (b) Each party hereto agrees, to the fullest extent that it may effectively do so under applicable law, that a judgment in any suit, action or proceeding
of the nature referred to in Section 18(a) brought in any court shall be conclusive and binding upon such party, subject to rights of appeal and may be enforced in the courts of the United States of America or the State of New York (or any
other court the jurisdiction to which the Company is or may be subject). 
 SECTION 19. Counterparts. This Agreement may be executed
in one or more counterparts and, if executed in more than one counterpart, the executed counterparts shall each be deemed to be an original but all such counterparts shall together constitute one and the same instrument. 
 SECTION 20. Headings. The headings herein are inserted for convenience of reference only and are not intended to be part of, or to affect the
meaning or interpretation of, this Agreement. 
 SECTION 21. Absence of Fiduciary Relationship. The Company hereby acknowledges
that (a) the Remarketing pursuant to this Agreement will be an arm’s-length commercial transaction between the Company, on the one hand, and the Remarketing Agent and any affiliate through which it may be acting, on the other, (b) the
Remarketing Agent is not acting as a fiduciary or agent (except pursuant to the express terms hereof) of the Company and (c) the Company’s engagement of the Remarketing Agent in connection with the Remarketing is as independent contractor
and not in any other capacity. Furthermore, the Company agrees that it is solely responsible for making its own judgments in connection with the Remarketing (irrespective of whether the Remarketing Agent has advised or is currently advising the
Company on related or other matters). The Company agrees that it will not claim that the Remarketing Agent has rendered advisory services of any nature or respect in its role as Remarketing Agent in the Remarketing, or owe a fiduciary or agency
(except pursuant to the express terms hereof) or similar duty to the Company, in connection with the Remarketing or the process leading thereto.  
 SECTION 22. Severability. If any provision of this Agreement shall be held or deemed to be or shall, in fact, be invalid, inoperative or unenforceable as applied in any particular case in any or all
jurisdictions because it conflicts with any provisions of any constitution, statute, rule or public policy or for any other reason, then, to the extent permitted by law, such circumstances shall not have the effect of rendering the provision in
question invalid, inoperative or unenforceable in any other case, circumstance or jurisdiction, or of rendering any other provision or provisions of this Agreement invalid, inoperative or unenforceable to any extent whatsoever. 
 SECTION 23. Amendments. This Agreement may be amended by an instrument in writing signed by the parties hereto. The Company agrees that it will
not enter into, cause or permit any amendment or modification of the Transaction Documents or any other instruments or agreements relating to the Senior Notes or the Corporate Units that would adversely affect the rights, duties or obligations of
the Remarketing Agent Candidates, without their prior written consent. 
  

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 SECTION 24. Successors and Assigns. The rights and obligations of the Company hereunder may not be
assigned or delegated to any other Person without the prior written consent of Credit Suisse and Citigroup. The rights and obligations of the Remarketing Agent hereunder may not be assigned or delegated to any other Person (other than an affiliate
of the Remarketing Agent) without the prior written consent of the Company. 
 If the foregoing correctly sets forth the agreement by and
between the Company, the Remarketing Agent Candidates and the Purchase Contract Agent, please indicate your acceptance in the space provided for that purpose below. 
 SIGNATURES ON THE FOLLOWING PAGE 
  

 20 

									
		 		 	Very truly yours,
			
		 		 	AMBAC FINANCIAL GROUP, INC.
				
		 		 	By:	 	 /s/ David Trick

		 		 	Name:	 	David Trick
		 		 	Title:	 	Managing Director and Treasurer
			
	 CONFIRMED AND ACCEPTED:
 CREDIT SUISSE
SECURITIES (USA) LLC
	 		 	CITIGROUP GLOBAL MARKETS INC.
					
	By:	 	/s/ Stephan A. Kiratsous	 		 	By:	 	/s/ Gautam Chowla
	Name:	 	Stephan A. Kiratsous	 		 	Name:	 	Gautam Chowla
	Title:	 	Managing Director	 		 	Title:	 	Managing Director
			
	BANC OF AMERICA SECURITIES LLC	 		 	UBS SECURITIES LLC
					
	By:	 	/s/ Thomas M. Morrison	 		 	By:	 	/s/ Alejandro Przygoda
	Name:	 	Thomas M. Morrison	 		 	Name:	 	Alejandro Przygoda
	Title:	 	Managing Director	 		 	Title:	 	Managing Director
				
	THE BANK OF NEW YORK	 		 		 	
			
	 not individually but solely as Purchase Contract Agent
 and as attorney-in-fact for the Holders of the Purchase Contracts
	 		 	 UBS SECURITIES LLC

					
	By:	 	/s/ Franca M. Ferrera	 		 	By:	 	/s/ Jonathan Bayer
	Name:	 	Franca M. Ferrera	 		 	Name:	 	Jonathan Bayer
	Title:	 	Assistant Vice President	 		 	Title:	 	Executive Director

 Remarketing Agreement 
  

 21

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