Document:

Form of 7.125% Senior Note due 2016

 Exhibit 4.1 
 THIS NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY
OR A NOMINEE OF THE DEPOSITORY, WHICH MAY BE TREATED BY THE COMPANY, THE TRUSTEE AND ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS NOTE FOR ALL PURPOSES, INCLUDING THE PAYMENT OF PRINCIPAL AND INTEREST. 
 UNLESS AND UNTIL THIS GLOBAL SECURITY IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE REGISTERED FORM IN THE LIMITED CIRCUMSTANCES
REFERRED TO IN THE INDENTURE, THIS GLOBAL SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY OR BY THE
DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITORY. 
 UNLESS THIS CERTIFICATE
IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS
WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
  

			
	No. R-1	  	
		
	CUSIP No. 91529YAG1	  	$350,000,000

 UNUM GROUP 
 7.125% SENIOR NOTE DUE 2016 
 UNUM GROUP, a corporation duly
organized and existing under the laws of the State of Delaware (the “Company”, which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & CO., as
nominee of The Depository Trust Company, or registered assigns, the principal sum of THREE HUNDRED FIFTY MILLION DOLLARS (U.S.$350,000,000) on September 30, 2016 (such date is hereinafter referred to as the “Stated Maturity”), and to
pay interest thereon, from September 30, 2009, or from the most recent Interest Payment Date (as defined below) for which interest has been paid or duly provided for, at the rate of 7.125% per annum (the “Interest Rate”).
Interest on this Note shall be payable semi-annually in arrears on March 30 and September 30 of each year (each, an “Interest Payment Date”), commencing March 30, 2010, until the principal hereof is paid or made available
for payment. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture, be paid to the Person in whose name this Note (or one or more Predecessor Securities) is registered at
the close of business on the Regular Record Date for such interest, which shall be the March 15 or September 15, as the case may be (whether or not a Business Day) immediately preceding such

 
Interest Payment Date; provided, that interest payable at the Stated Maturity or on a Redemption Date will be paid to the Person to whom principal is payable on such date. Any such interest not
so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Note (or one or more Predecessor Securities) is registered at the close of
business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice of which shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date and shall
otherwise be payable, all as more fully provided in the Indenture. 
 Payments of principal and premium, if any, shall be made
upon the surrender of this Note at the Corporate Trust Office of the Trustee, or at such other office or agency of the Company as may be designated by the Company for such purpose in the Borough of Manhattan, The City of New York or in the City of
Chattanooga, Tennessee, in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts, by Dollar check drawn on, or transfer to, a Dollar account. Payments of
interest on this Note may be made by Dollar check, drawn on a Dollar account, mailed to the address of the Person entitled thereto as such address shall appear in the Security Register, or, upon written application by the Holder to the Security
Registrar setting forth wire instructions not later than the relevant Regular Record Date, by wire transfer to a Dollar account. The amount of interest payable for any period on any Interest Payment Date shall be computed on the basis of a 360-day
year consisting of twelve 30-day months. In the event that any date on which interest is payable on the Notes is not a Business Day, then payment of interest payable on such 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). 
 Reference is hereby made to the further provisions of
this Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth at this place. 
 Unless the certificate of authorization hereon has been executed by the Trustee referred to on the reverse hereof or an Authentication Agent by the manual signature of one of their respective authorized
signatories, this 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 Note to be executed and delivered.

 Dated: September 30, 2009 
  

							
		 		 	UNUM GROUP
				
		 		 	By:	 	 
		 		 		 	Name:
		 		 		 	Title:

 CERTIFICATE OF AUTHENTICATION 
 This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. 
  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
	as Trustee
		
	By:	 	 
		 	Authorized Signatory

 This Note is one of a duly authorized issue of securities of the Company designated as its
“7.125% Senior Notes due 2016” (herein sometimes referred to as the “Notes”), initially limited in aggregate principal amount to $350,000,000, issued and to be issued under and pursuant to an Indenture, dated as of
September 30, 2009 (the “Indenture”), duly executed and delivered between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), to which Indenture and all indentures supplemental
thereto 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 Notes and of the terms upon which the Notes are, and are to be,
authenticated and delivered. 
 The Notes are issuable only in registered form without coupons, in denominations of $2,000 and
integral multiples of $1,000 in excess thereof. As provided in the Indenture and subject to certain limitations therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized
denomination, as requested by the Holder surrendering the same. 
 No sinking fund is provided for the Notes. 
 The Notes will be redeemable in whole at any time or in part from time to time, at the Company’s option, at a Redemption Price equal to
the greater of: 
  

	 	•	 	 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest on the principal amount to be redeemed to the Redemption
Date; or 

  

	 	•	 	 the sum, as calculated by the Independent Investment Banker, of the present values of the remaining scheduled payments of principal and interest on the
Notes to be redeemed (exclusive of interest accrued to the Redemption Date) discounted to the Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury Rate plus 50 basis
points, plus accrued and unpaid interest on the principal amount to be redeemed to the Redemption Date, which is hereinafter referred to as the “Make-Whole Redemption Amount.” 

 For the purposes of the foregoing, the following definitions shall apply: 
 “Comparable Treasury Issue” means the United States Treasury security selected by the Independent Investment Banker as having a
maturity comparable to the remaining term (“Remaining Life”) of the Notes to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt
securities of comparable maturity to the remaining term of such Notes. 
 “Comparable Treasury Price” means, with
respect to any Redemption Date, the average of the Reference Treasury Dealer Quotations for such Redemption Date. 
 “Independent Investment Banker” means each of (1) Morgan Stanley & Co. Incorporated, (2) Goldman, Sachs & Co., (3) J.P. Morgan Securities Inc. and (4) Wells Fargo Securities, LLC, and their
respective successors, as selected by the Company, or, if any such firm or the successors, if any, to such firm, as the case may be, are unwilling or unable to serve as

 
such, an independent investment banking institution of national standing appointed by the Company. 
 “Reference Treasury Dealer” means each of (1) Morgan Stanley & Co. Incorporated, (2) Goldman, Sachs & Co., (3) J.P. Morgan Securities Inc. and (4) Wells
Fargo Securities, LLC, and their respective successors; provided, however, that if any of them ceases to be a primary U.S. Government securities dealer (each a “Primary Treasury Dealer”), the Company will substitute another Primary
Treasury Dealer. 
 “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and
any Redemption Date, the average, as determined by the Independent Investment Banker, of the bid and ask prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent
Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date. 
 “Treasury Rate” means, with respect to any Redemption Date, the rate per year equal to: 
 (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15(519)” or any
successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity under the caption “Treasury
Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue; provided that, if no maturity is within three months before or after the Remaining Life of the Notes to be redeemed, yields for the two published maturities
most closely corresponding to the Comparable Treasury Issue shall be determined and the Treasury Rate shall be interpolated or extrapolated from those yields on a straight line basis, rounding to the nearest month; or 
 (2) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such
yields, the rate per year equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable
Treasury Price for such Redemption Date. 
 The Treasury Rate will be calculated on the third Business Day preceding the
Redemption Date. As used in the immediately preceding sentence and in the definition of “Reference Treasury Dealer Quotations” above, the term “Business Day” means any day that is not a Saturday, Sunday or other day on which
commercial banks in New York City are authorized or required by law to remain closed. 
 Notice of any redemption will be mailed
at least 30 but not more than 60 days before the Redemption Date to each Holder of the Notes to be redeemed at its registered address. The notice of redemption for the Notes will state, among other things, the amount of Notes to be redeemed, the
Redemption Date, the manner of calculation of the Redemption Price and the place or places that payment will be made upon presentation and surrender of Notes to be redeemed. If less than all of the Notes are to be redeemed at the Company’s
option, the Trustee will select, in a manner it deems fair and appropriate, the Notes, or portions of the Notes, to be redeemed. Unless the

 
Company defaults in the payment of the Redemption Price, interest will cease to accrue on any Notes that have been called for redemption at the Redemption Date. 
 The Company will not be required (i) to issue, register the transfer of or exchange any Notes during a period beginning at the opening
of business 15 days before the day of the mailing of a notice of redemption of Notes selected for redemption and ending at the close of business on the day of such mailing, or (ii) to register the transfer of or exchange any Notes so selected
for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. 
 In case an Event
of Default shall occur and be continuing, the principal of all of the Notes, together with accrued interest to the date of declaration, 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 Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the written consent of the Holders of not less than a majority in principal amount of
the Securities at the time Outstanding and affected thereby. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Notes at the time Outstanding, on behalf of the Holders of all the 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 Note shall be conclusive and binding upon such Holder
and upon all future Holders of this Note and of any Note issued in exchange herefor or in lieu hereof whether or not notation of such consent or waiver is made upon this Note or such other Note. 
 As provided in and subject to the provisions of the Indenture, the Holder of this Note shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless (i) such Holder shall have previously given the Trustee written notice of a continuing Event of Default, (ii) the
Holders of not less than 25% in principal amount of the Notes that are Outstanding shall have made a written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee indemnity
satisfactory to it, (iii) the Trustee shall not have received from the Holders of a majority in principal amount of the Notes that are Outstanding a direction inconsistent with such request, and (iv) the Trustee shall have failed to
institute any such proceeding for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by any Holder of this Note for the enforcement of any payment of principal hereof, or any
premium of interest hereon on or after the respective due dates expressed herein. 
 No reference herein to the Indenture and no
provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, premium, if any, and interest on this Note at the times, places 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 Note is registrable on the Security Register upon surrender of this Note for registration of transfer at the Corporate Trust Office of the Trustee or at such other office or

 
agency of the Company as may be designated by it for such purpose in the Borough of Manhattan, The City of New York or the City of Chattanooga, Tennessee (which shall initially be an office or
agency of the Trustee), or at such other offices or agencies as the Company may designate, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Security Registrar duly executed by, the Holder thereof or
his attorney duly authorized in writing, and thereupon one or more new Notes, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees by the Security Registrar. 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 recover any tax or other governmental charge payable in connection therewith. 
 Prior to due presentation of this 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 Note is registered, as the owner thereof for all purposes, whether or not such Note be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 

No recourse for the payment of the principal (and premium, if any) or interest on this Note and no recourse under or upon any obligation,
covenant or agreement of the Company in the Indenture or any indenture supplemental thereto or in any Note, or because of the creation of any indebtedness represented thereby, shall be had against any incorporator, stockholder, employee, agent,
officer or director or subsidiary, as such, past, present or future, of the Company or of any successor corporation, either directly or through the Company or any successor corporation, whether by virtue of any constitution, statute or rule of law
or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of consideration for the issue hereof, expressly waived and released. 
 THE INDENTURE AND THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 
 All capitalized terms used in this Note which are defined in the Indenture and are not otherwise defined herein shall have the meanings
assigned to them in the Indenture. 

 ABBREVIATIONS 
 The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full according to applicable laws or regulations: 
  

					
	TEN COM	  	-	  	as tenants in common
	TEN ENT	  	-	  	as tenants by the entireties (Cust)
	JT TEN	  	-	  	as joint tenants with right of survivorship and not as tenants in common
	UNIF GIFT MIN ACT	  	-	  	                     Custodian
                    
		  		  	                                        
(Minor)
		  		  	under Uniform Gifts to Minors Act
                                    
		  		  	                                        
                                (State)

 Additional abbreviations may also be used though not in the above list. 

 ASSIGNMENT 
 FOR VALUE RECEIVED, the undersigned assigns and transfers this Note to: 
  
  
  
  
  
  
 (Insert assignee’s social
security or tax identification number) 
  
  
  
  
  
  
 (Insert address and zip code of
assignee) 
 agent to transfer this Note on the Security Register. The agent may substitute another to act for him or her. 
 Dated: 
  

			
	Signed:	 	 
	
	Signature Guarantee:

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

 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.Indenture for Senior Debt Securities, dated as of September 30, 2009

 Exhibit 4.2 
 EXECUTION VERSION 
 UNUM GROUP 
 TO 
 THE
BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 
 AS TRUSTEE 
 INDENTURE 
 DATED AS OF SEPTEMBER 30, 2009 

 SENIOR DEBT SECURITIES 

 TABLE OF CONTENTS 
  

			
	 	  	Page
	 ARTICLE ONE DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
	  	1
		
	 SECTION 101 Definitions
	  	1
	 SECTION 102 Compliance Certificates And Opinions
	  	9
	 SECTION 103 Form Of Documents Delivered To Trustee
	  	10
	 SECTION 104 Acts Of Holders
	  	10
	 SECTION 105 Notices, Etc., To The Trustee And Company
	  	12
	 SECTION 106 Notice To Holders; Waiver
	  	13
	 SECTION 107 Effect Of Headings And Table Of Contents
	  	14
	 SECTION 108 Successors And Assigns
	  	14
	 SECTION 109 Separability Clause
	  	14
	 SECTION 110 Benefits Of Indenture
	  	14
	 SECTION 111 No Personal Liability
	  	14
	 SECTION 112 Governing Law; Waiver of Trial by Jury
	  	14
	 SECTION 113 Legal Holidays
	  	15
		
	 ARTICLE TWO SECURITIES FORMS
	  	15
		
	 SECTION 201 Forms Of Securities
	  	15
	 SECTION 202 Form Of Trustee’s Certificate Of Authentication
	  	16
	 SECTION 203 Securities Issuable In Global Form
	  	16
		
	 ARTICLE THREE THE SECURITIES
	  	17
		
	 SECTION 301 Amount Unlimited; Issuable In Series
	  	17
	 SECTION 302 Denominations
	  	20
	 SECTION 303 Execution, Authentication, Delivery And Dating
	  	20
	 SECTION 304 Temporary Securities
	  	22
	 SECTION 305 Registration, Registration Of Transfer And Exchange
	  	24
	 SECTION 306 Mutilated, Destroyed, Lost And Stolen Securities
	  	27
	 SECTION 307 Payment Of Interest; Interest Rights Preserved
	  	28
	 SECTION 308 Persons Deemed Owners
	  	29
	 SECTION 309 Cancellation
	  	30
	 SECTION 310 Computation Of Interest
	  	30
	 SECTION 311 Cusip Numbers
	  	30
		
	 ARTICLE FOUR SATISFACTION AND DISCHARGE
	  	31
		
	 SECTION 401 Satisfaction And Discharge Of Indenture
	  	31
	 SECTION 402 Application Of Trust Funds
	  	32
		
	 ARTICLE FIVE REMEDIES
	  	32
		
	 SECTION 501 Events Of Default
	  	32
	 SECTION 502 Acceleration Of Maturity; Rescission And Annulment
	  	34
	 SECTION 503 Collection Of Indebtedness And Suits For Enforcement By Trustee
	  	35
	 SECTION 504 Trustee May File Proofs Of Claim
	  	35

					
	SECTION 505	 	Trustee May Enforce Claims Without Possession Of Securities Or Coupons	  	36
	 SECTION 506
	 	Application Of Money Collected	  	36
	 SECTION 507
	 	Limitation On Suits	  	37
	 SECTION 508
	 	Unconditional Right Of Holders To Receive Principal, Premium Or Make-Whole Amount, If Any, Interest And Additional Amounts	  	37
	 SECTION 509
	 	Restoration Of Rights And Remedies	  	38
	 SECTION 510
	 	Rights And Remedies Cumulative	  	38
	 SECTION 511
	 	Delay Or Omission Not Waiver	  	38
	 SECTION 512
	 	Control By Holders Of Securities	  	38
	 SECTION 513
	 	Waiver Of Past Defaults	  	38
	 SECTION 514
	 	Waiver Of Stay, Usury Or Extension Laws	  	39
	 SECTION 515
	 	Undertaking For Costs	  	39
		
	ARTICLE SIX THE TRUSTEE	  	39
			
	 SECTION 601
	 	Notice Of Defaults	  	39
	 SECTION 602
	 	Certain Duties, Responsibilities And Rights Of Trustee	  	40
	 SECTION 603
	 	Not Responsible For Recitals Or Issuance Of Securities	  	41
	 SECTION 604
	 	May Hold Securities	  	41
	 SECTION 605
	 	Money Held In Trust	  	42
	 SECTION 606
	 	Compensation And Reimbursement	  	42
	 SECTION 607
	 	Corporate Trustee Required; Eligibility	  	42
	 SECTION 608
	 	Resignation And Removal; Appointment Of Successor	  	43
	 SECTION 609
	 	Acceptance Of Appointment By Successor	  	44
	 SECTION 610
	 	Merger, Conversion, Consolidation Or Succession To Business	  	45
	 SECTION 611
	 	Appointment Of Authenticating Agent	  	45
	 SECTION 612
	 	Certain Duties And Responsibilities	  	46
	SECTION 613 Conflicting Interests	  	46
	 SECTION 614
	 	Preferential Collection Of Claims Against Company	  	47
		
	ARTICLE SEVEN HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY	  	47
			
	 SECTION 701
	 	Disclosure Of Names And Addresses Of Holders	  	47
	 SECTION 702
	 	Reports By Trustee	  	47
	 SECTION 703
	 	Reports By Company	  	47
	 SECTION 704
	 	Company To Furnish Trustee Names And Addresses Of Holders	  	48
		
	ARTICLE EIGHT CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE	  	48
			
	 SECTION 801
	 	Consolidations And Mergers Of Company And Sales, Leases And Conveyances Permitted Subject To Certain Conditions	  	48
	 SECTION 802
	 	Rights And Duties Of Successor Corporation	  	49
	 SECTION 803
	 	Officers’ Certificate And Opinion Of Counsel	  	49
		
	ARTICLE NINE SUPPLEMENTAL INDENTURES	  	49
			
	 SECTION 901
	 	Supplemental Indentures Without Consent Of Holders	  	49
	 SECTION 902
	 	Supplemental Indentures With Consent Of Holders	  	51
	 SECTION 903
	 	Execution Of Supplemental Indentures	  	52
	 SECTION 904
	 	Effect Of Supplemental Indentures	  	52
	 SECTION 905
	 	Conformity With Trust Indenture Act	  	52

			
	 SECTION 906 Reference In Securities To Supplement Indentures
	  	52
	 SECTION 907 Notice Of Supplemental Indentures
	  	52
		
	 ARTICLE TEN COVENANTS
	  	52
		
	 SECTION 1001 Payment Of Principal, Premium Or Make-Whole Amount, If Any, Interest And Additional Amounts
	  	52
	 SECTION 1002 Maintenance Of Office Or Agency
	  	53
	 SECTION 1003 Money For Securities Payments To Be Held In Trust
	  	54
	 SECTION 1004 [Reserved]
	  	55
	 SECTION 1005 Existence
	  	55
	 SECTION 1006 [Reserved]
	  	56
	 SECTION 1007 [Reserved]
	  	56
	 SECTION 1008 [Reserved]
	  	56
	 SECTION 1009 [Reserved]
	  	56
	 SECTION 1010 Statement As To Compliance
	  	56
	 SECTION 1011 Additional Amounts
	  	56
	 SECTION 1012 Waiver Of Certain Covenants
	  	57
		
	 ARTICLE ELEVEN REDEMPTION OF SECURITIES
	  	57
		
	 SECTION 1101 Applicability Of Article
	  	57
	 SECTION 1102 Election To Redeem; Notice To Trustee
	  	57
	 SECTION 1103 Selection By Trustee Of Securities To Be Redeemed
	  	57
	 SECTION 1104 Notice Of Redemption
	  	58
	 SECTION 1105 Deposit Of Redemption Price
	  	59
	 SECTION 1106 Securities Payable On Redemption Date
	  	59
	 SECTION 1107 Securities Redeemed In Part
	  	60
		
	 ARTICLE TWELVE SINKING FUNDS
	  	61
		
	 SECTION 1201 Applicability Of Article
	  	61
	 SECTION 1202 Satisfaction Of Sinking Fund Payments With Securities
	  	61
	 SECTION 1203 Redemption Of Securities For Sinking Fund
	  	61
		
	 ARTICLE THIRTEEN REPAYMENT AT THE OPTION OF HOLDERS
	  	62
		
	 SECTION 1301 Applicability Of Article
	  	62
	 SECTION 1302 Repayment Of Securities
	  	62
	 SECTION 1303 Exercise Of Option
	  	62
	 SECTION 1304 When Securities Presented For Repayment Become Due And Payable
	  	63
	 SECTION 1305 Securities Repaid In Part
	  	63
		
	 ARTICLE FOURTEEN DEFEASANCE AND COVENANT DEFEASANCE
	  	64
		
	 SECTION 1401 Applicability Of Article; Company’s Option To Effect Defeasance Or Covenant Defeasance
	  	64
	 SECTION 1402 Defeasance And Discharge
	  	64
	 SECTION 1403 Covenant Defeasance
	  	64
	 SECTION 1404 Conditions To Defeasance Or Covenant Defeasance
	  	65

			
	 SECTION 1405 Deposited Money And Government Obligations To Be Held In Trust; Other Miscellaneous
Provisions
	  	66
	 SECTION 1406 Reinstatement
	  	67
	 SECTION 1407 Qualifying Trustee
	  	67
		
	 ARTICLE FIFTEEN MEETINGS OF HOLDERS OF SECURITIES
	  	68
		
	 SECTION 1501 Purposes For Which Meetings May Be Called
	  	68
	 SECTION 1502 Call, Notice And Place Of Meetings
	  	68
	 SECTION 1503 Persons Entitled To Vote At Meetings
	  	68
	 SECTION 1504 Quorum; Action
	  	68
	 SECTION 1505 Determination Of Voting Rights; Conduct And Adjournment Of Meetings
	  	69
	 SECTION 1506 Counting Votes And Recording Action Of Meetings
	  	70
	 SECTION 1507 Evidence Of Action Taken By Holders
	  	70
	 SECTION 1508 Proof Of Execution Of Instruments
	  	71
		
	 ARTICLE SIXTEEN CONVERSION OR EXCHANGE OF SECURITIES
	  	71
		
	 SECTION 1601 Applicability Of Article
	  	71
	 SECTION 1602 Election To Exchange; Notice To Trustee And Holders
	  	71
	 SECTION 1603 No Fractional Shares
	  	71
	 SECTION 1604 Adjustment Of Exchange Rate
	  	72
	 SECTION 1605 Payment Of Certain Taxes Upon Exchange
	  	72
	 SECTION 1606 Shares Free And Clear
	  	72
	 SECTION 1607 Cancellation Of Security
	  	72
	 SECTION 1608 Duties Of Trustee Regarding Exchange
	  	72
	 SECTION 1609 Repayment Of Certain Funds Upon Exchange
	  	73
	 SECTION 1610 Exercise Of Conversion Privilege
	  	73
	 SECTION 1611 Effect Of Consolidation Or Merger On Conversion Privilege
	  	74

 UNUM GROUP 
 Reconciliation and tie between Trust Indenture Act of 1939, as amended (the “TIA”), and Indenture, dated as of September 30,
2009. 
  

			
	 Trust Indenture Act Section
	  	Indenture Section
	 Section 310(a)(1)
	  	607
	 Section 310(a)(2)
	  	607
	 Section 310(b)
	  	607
	 Section 312(c)
	  	701
	 Section 314(a)
	  	703
	 Section 314(a)(4)
	  	1010
	 Section 314(c)(1)
	  	102
	 Section 314(c)(2)
	  	102
	 Section 314(e)
	  	102
	 Section 315(b)
	  	601
	 Section 316(a)(last sentence)
	  	101 (“Outstanding”)
	 Section 316(a)(1)(A)
	  	502, 512
	 Section 316(a)(1)(B)
	  	513
	 Section 316(b)
	  	508
	 Section 317(a)(1)
	  	503
	 Section 317(a)(2)
	  	504
	 Section 318(a)
	  	112
	 Section 318(c)
	  	112

 Note: This reconciliation and tie shall not, for any purpose, be deemed to be a part of the
Indenture. 
 Attention should also be directed to Section 318(c) of the TIA, which provides that the provisions of Sections 310 to and
including 317 of the TIA are a part of and govern every qualified indenture, whether or not physically contained therein. 

 INDENTURE 
 INDENTURE, dated as of September 30, 2009, between UNUM GROUP, a Delaware corporation (hereinafter called the “Company”),
having its principal office at 1 Fountain Square, Chattanooga, Tennessee 37402 and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., a national banking association, as Trustee hereunder (hereinafter called the “Trustee”), having its
Corporate Trust Office at 900 Ashwood Parkway, Suite 425, Atlanta, Georgia 30338. 
 RECITALS OF THE COMPANY 

The Company deems it necessary to issue from time to time for its lawful purposes senior debt securities (hereinafter called the
“Securities”) evidencing its unsecured and unsubordinated indebtedness, and has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of the Securities, unlimited as to aggregate
principal amount, to bear interest at the rates or formulas, to mature at such times and to have such other provisions as shall be fixed therefor as hereinafter provided. 
 All things necessary to make this Indenture a valid agreement of the Company, in accordance with its terms, have been done. 
 NOW, THEREFORE, THIS INDENTURE WITNESSETH: 
 For and in consideration of
the premises and the purchase of the Securities by the Holders thereof, it is mutually covenanted and agreed, for the equal and proportionate benefit of all Holders of the Securities, as follows: 
 ARTICLE ONE 
 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 
 SECTION 101 Definitions. 
 For all purposes of this Indenture, except as otherwise expressly provided or the context otherwise requires: 
 (1) the terms defined in this Article have the meanings assigned to them in this Article, and include the plural as well as
the singular; 
 (2) all other terms used herein which are defined in the Trust Indenture Act, either directly or
by reference therein, have the meanings assigned to them therein, and the terms “cash transaction” and “self- liquidating paper,” as used in Trust Indenture Act Section 311, shall have the meanings assigned to them in the
rules of the Commission adopted under the Trust Indenture Act; 
 (3) all accounting terms not otherwise defined
herein have the meanings assigned to them in accordance with generally accepted accounting principles; and 
 (4)
the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision. 
 Certain terms, used principally in Article Three, Article Five, Article Six and Article Ten, are defined in those Articles. In addition, the
following terms shall have the indicated respective meanings: 
 “Act” has the meaning specified in
Section 104. 
  

 1 

 “Additional Amounts” means any additional amounts which are
required by a Security, under circumstances specified therein, to be paid by the Company in respect of certain taxes imposed on certain Holders and which are owing to such Holders in order that they receive the amount they would have received as if
such taxes had not been imposed. 
 “Affiliate” of any specified Person means any other Person directly
or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” when used with respect to any specified Person means the power to direct the
management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the
foregoing. 
 “Authenticating Agent” means any authenticating agent appointed by the Trustee pursuant
to Section 611. 
 “Authorized Newspaper” means a newspaper, printed in the English language or in
an official language of the country of publication, customarily published on each Business Day, whether or not published on Saturdays, Sundays or holidays, and of general circulation in each place in connection with which the term is used or in the
financial community of each such place. Whenever successive publications are required to be made in Authorized Newspapers, the successive publications may be made in the same or in different Authorized Newspapers in the same city meeting the
foregoing requirements and in each case on any Business Day. 
 “Bankruptcy Law” has the meaning
specified in Section 501. 
 “Bearer Security” means a Security issued hereunder which is payable
to bearer. 
 “Board of Directors” means the Board of Directors of the Company, the executive committee
or any other committee or director of that board duly authorized to act for it in respect hereof. 
 “Board
Resolution” means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company to have been duly adopted by the Board of Directors or a committee thereof, and to be in full force and effect on the date of such
certification, and delivered to the Trustee. 
 “Business Day,” when used with respect to any Place of
Payment or any other particular location referred to in this Indenture or in the Securities, means, unless otherwise specified with respect to any Securities pursuant to Section 301, any day, other than a Saturday or Sunday, that is neither a
legal holiday nor a day on which banking institutions in that Place of Payment or particular location are authorized or required by law, regulation or executive order to close. 
 “Clearstream” means Clearstream Banking, S.A., or its successor. 
 “Commission” means the Securities and Exchange Commission, as from time to time constituted, created under the
Exchange Act, or, if at any time after execution of this instrument such Commission is not existing and performing the duties now assigned to it under the Trust Indenture Act, then the body performing such duties on such date. 
 “Common Depository” has the meaning specified in Section 304(b). 
  

 2 

 “Company” means the Person named as the “Company” in the
first paragraph of this Indenture until a successor corporation shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Company” shall mean such successor corporation. 
 “Company Request” and “Company Order” mean, respectively, a written request or order signed in the name
of the Company by the President or a Vice President of the Company, and by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and delivered to the Trustee. 
 “Conversion Event” means the cessation of use of (i) a Foreign Currency (other than as otherwise provided with
respect to a Security pursuant to Section 301) as provided by the government of the country which issued such currency and for the settlement of transactions by a central bank or other public institutions of or within the international banking
community or (ii) any currency unit (or composite currency) for the purposes for which it was established. 
 “Corporate Trust Office” means the designated office of the Trustee at which, at any particular time, its corporate trust business shall be administered, which office at the date hereof is located at 900 Ashwood Parkway, Suite
425, Atlanta, Georgia 30338, or at any other time at such other address as the Trustee may designate from time to time by notice to the Holders. 
 “Corporation” includes corporations, associations, companies and business trusts. 
 “Coupon” means any interest coupon appertaining to a Bearer Security. 
 “Custodian” has the meaning set forth in Section 501. 
 “Debt” means the principal, premium, if any, unpaid interest (including interest accruing on or after the filing of any petition in bankruptcy or for reorganization relating to the Company whether or not a claim for post-filing
interest is allowed in such proceeding), fees, charges, expenses, reimbursement and indemnification obligations, and all other amounts payable under or in respect of the following indebtedness of the Company, whether any such indebtedness exists as
of the date of the Indenture or is created, incurred, assumed or guaranteed after such date: 
 (i) any debt
(a) for money borrowed, or (b) evidenced by a bond, note, debenture, or similar instrument (including purchase money obligations) whether or not given in connection with the acquisition of any business, property or assets, whether by
purchase, merger, consolidation or otherwise, but shall not include any account payable or other obligation created or assumed in the ordinary course of business in connection with the obtaining of materials or services, or (c) which is a
direct or indirect obligation which arises as a result of banker’s acceptances or bank letters of credit issued to secure obligations of the Company, or to secure the payment of revenue bonds issued for the benefit of the Company, whether
contingent or otherwise; 
 (ii) any debt of others described in the preceding clause (i) which the Company
has guaranteed or for which it is otherwise liable; 
 (iii) indebtedness secured by any mortgage, pledge, lien,
charge, encumbrance or any security interest existing on property owned by the Company; 
  

 3 

 (iv) the obligation of the Company, as lessee under any lease of property
that is or is required to be reflected on the Company’s balance sheet as a capitalized lease in accordance with GAAP; and 
 (v) any deferral, amendment, renewal, extension, supplement, modification or refunding of any liability of the kind described in any of the preceding clauses (i), (ii), (iii) and (iv); 
 provided, however, that, in computing indebtedness of the Company, there shall be excluded any particular indebtedness if, (i) upon or prior to the
maturity thereof, there shall have been deposited with an unaffiliated depository in trust money (or evidence of indebtedness if permitted by the instrument creating such indebtedness) in the necessary amount to pay, redeem or satisfy such
indebtedness as it becomes due (or, if applicable, as it may be redeemed prior to its stated maturity in accordance with the terms, if any, regarding early redemption set forth in the instrument governing such indebtedness), and the amount so
deposited shall not be included in any computation of the assets of the Company and (ii) prior to such deposit the Company shall deliver an Officers’ Certificate to the Trustee which shall certify that such amount has been so deposited
with such depository. 
 “Defaulted Interest” has the meaning specified in Section 307.

 “Depository” when used with respect to the Securities of or within any series issuable or issued in
whole or in part in global form, means the Person designated as Depository by the Company pursuant to Section 301 until a successor Depository shall have become such pursuant to the applicable provisions of this Indenture, and thereafter shall
mean or include each Person which is then a Depository hereunder, and if at any time there is more than one such Person, shall be a collective reference to such Persons. 
 “Dollar” or “$” means a dollar or other equivalent unit in such coin or currency of the United States of
America as at the time shall be legal tender for payment of public and private debts. 
 “DTC” means
The Depository Trust Company. 
 “Euroclear” means Euroclear Bank, S.A./N.V., as operator of the
Euroclear system. 
 “Event of Default” has the meaning specified in Section 501. 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder by the Commission. 
 “Exchange Rate Agent” unless otherwise specified with respect to
Securities of or within any series pursuant to Section 301, means a bank designated as such in accordance with Section 301 (which may include any such bank acting as Trustee). 
 “Exchange Rate Officer’s Certificate” means a certificate in the form attached as Exhibit B setting forth
(i) the applicable market exchange rate or the applicable bid quotation and (ii) the Dollar or Foreign Currency amounts of principal (and premium, if any) and interest, if any (on an aggregate basis and on the basis of a Security having
the lowest denomination principal amount in the relevant currency or currency unit), payable with respect to a Security of any series on the basis of such market exchange rate or the applicable bid quotation, signed by the Chief Financial Officer,
Treasurer, or any Vice President of the Company. 
  

 4 

 “Expiration Date” means any date designated as such pursuant to
Section 104(h) hereof. 
 “Foreign Currency” means any currency, currency unit or composite
currency issued by the government of one or more countries other than the United States of America or by any recognized confederation or association of such governments. 
 “GAAP” means generally accepted accounting principles as used in the United States applied on a consistent basis as
in effect from time to time; provided that solely for purposes of any calculation required by the financial covenants contained herein, “GAAP” shall mean generally accepted accounting principles as used in the United States on the date
hereof, applied on a consistent basis. 
 “Government Obligations” means securities which are
(i) direct obligations of the United States of America or, if specified as contemplated by Section 301, the government which issued the Foreign Currency in which the Securities of a particular series are payable, for the payment of which
its full faith and credit is pledged or (ii) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America or, if specified as contemplated by Section 301, such government
which issued the Foreign Currency in which the Securities of such series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America or such other government, which, in either
case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any such Government Obligation or a specific payment of interest on
or principal of any such Government Obligation held by such custodian for the account of the holder of a depository receipt, provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to
the holder of such depository receipt from any amount received by the custodian in respect of the Government Obligation or the specific payment of interest on or principal of the Government Obligation evidenced by such depository receipt.

 “Holder” means, in the case of a Registered Security, the Person in whose name a Security is
registered in the Security Register and, in the case of a Bearer Security, the bearer thereof and, when used with respect to any coupon, shall mean the bearer thereof. 
 “Indenture” means this instrument as originally executed or as it may from time to time be supplemented or amended
by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof, and shall include the terms of particular series of Securities established as contemplated by Section 301; provided, however, that, if at
any time more than one Person is acting as Trustee under this instrument, “Indenture” shall mean, with respect to any one or more series of Securities for which such Person is Trustee, this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof and shall include the terms of the or those particular series of Securities for which such Person is
Trustee established as contemplated by Section 301, exclusive, however, of any provisions or terms which relate solely to other series of Securities for which such Person is not Trustee, regardless of when such terms or provisions were adopted,
and exclusive of any provisions or terms adopted by means of one or more indentures supplemental hereto executed and delivered after such Person had become such Trustee but to which such Person, as such Trustee, was not a party. 
 “Indexed Security” means a Security the terms of which provide that the principal amount thereof payable at Stated
Maturity may be more or less than the principal face amount thereof at original issuance. 
 “Interest”
when used with respect to an Original Issue Discount Security which by its terms bears interest only after Maturity, shall mean interest payable after Maturity, and, when used with

  

 5 

 
respect to a Security which provides for the payment of Additional Amounts pursuant to Section 1011, includes such Additional Amounts. 
 “Interest Payment Date” means, when used with respect to any Security, the Stated Maturity of an installment of
interest on such Security. 
 “Make-Whole Amount” means the amount, if any, in addition to principal
which is required by a Security, under the terms and conditions specified therein or as otherwise specified as contemplated by Section 301, to be paid by the Company to the Holder thereof in connection with any optional redemption or
accelerated payment of such Security. 
 “Maturity” means, when used with respect to any Security, the
date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, notice of redemption, notice of option to elect
repayment, repurchase or otherwise. 
 “Officers’ Certificate” means a certificate signed by the
President or a Vice President and by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company, and delivered to the Trustee. 
 “Opinion of Counsel” means a written opinion of counsel, who may be an employee of or counsel for the Company or
other counsel satisfactory to the Trustee. 
 “Original Issue Discount Security” means any Security
which provides for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 502. 
 “Outstanding,” when used with respect to Securities, means, as of the date of determination, all Securities
theretofore authenticated and delivered under this Indenture, except: 
 (i) Securities theretofore canceled by
the Trustee or delivered to the Trustee for cancellation; 
 (ii) Securities, or portions thereof, for whose
payment or redemption or repayment at the option of the Holder money in the necessary amount and the required currency has been theretofore deposited with the Trustee or any Paying Agent (other than the Company) in trust or set aside and segregated
in trust by the Company (if the Company shall act as its own Paying Agent) for the Holders of such Securities and any coupons appertaining thereto; provided that, if such Securities are to be redeemed, notice of such redemption has been duly given
pursuant to this Indenture or other provision therefor satisfactory to the Trustee has been made; 
 (iii)
Securities, except solely to the extent provided in Sections 1402 or 1403, as applicable, with respect to which the Company has effected defeasance and/or covenant defeasance as provided in Article Fourteen; 
 (iv) Securities which have been paid pursuant to Section 306 or in exchange for or in lieu of which other Securities
have been authenticated and delivered pursuant to this Indenture, other than any such Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Securities are held by a bona fide purchaser in
whose hands such Securities are valid obligations of the Company; and 
  

 6 

 (v) Securities converted or exchanged into other securities or property of
the Company pursuant to or in accordance with this Indenture if the terms of such Securities provide for convertibility or exchange pursuant to Section 301; provided, however, that in determining whether the Holders of the requisite principal
amount of the Outstanding Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder or are present at a meeting of Holders for quorum purposes, and for the purpose of making the calculations required by
Trust Indenture Act Section 313, (i) the principal amount of an Original Issue Discount Security that may be counted in making such determination or calculation and that shall be deemed to be Outstanding for such purpose shall be equal to
the amount of principal thereof that would be (or shall have been declared to be) due and payable, at the time of such determination, upon a declaration of acceleration of the maturity thereof pursuant to Section 502, (ii) the principal
amount of any Security denominated in a Foreign Currency that may be counted in making such determination or calculation and that shall be deemed Outstanding for such purpose shall be equal to the Dollar equivalent, determined pursuant to
Section 301 as of the date such Security is originally issued by the Company as set forth in an Exchange Rate Officer’s Certificate delivered to the Trustee, of the principal amount (or, in the case of an Original Issue Discount Security,
the Dollar equivalent as of such date of original issuance of the amount determined as provided in clause (i) above) of such Security, (iii) the principal amount of any Indexed Security that may be counted in making such determination or
calculation and that shall be deemed outstanding for such purpose shall be equal to the principal face amount of such Indexed Security at original issuance, unless otherwise provided with respect to such Indexed Security pursuant to
Section 301, and (iv) Securities owned by the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in making such calculation or in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Securities which a Responsible Officer of the Trustee actually knows to be so
owned shall be so disregarded. Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities
and that the pledgee is not the Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor. 
 “Paying Agent” means any Person authorized by the Company to pay the principal of (and premium or Make-Whole Amount, if any), interest or any other payments on any Securities, or coupons on
behalf of the Company, or if no such Person is authorized, the Company. 
 “Person” means any
individual, corporation, partnership, limited liability company, joint venture, association, joint stock company, trust, unincorporated organization or government or any agency or political subdivision thereof. 
 “Place of Payment” means, when used with respect to the Securities of or within any series, the place or places
where the principal of (and premium or Make-Whole Amount, if any), interest and any other payment on such Securities are payable as specified as contemplated by Sections 301 and 1002. 
 “Predecessor Security” of any particular Security means every previous Security evidencing all or a portion of the
same debt as that evidenced by such particular Security; and, for the purposes of this definition, any Security authenticated and delivered under Section 306 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Security or a
Security to which a mutilated, destroyed, lost or stolen coupon appertains shall be deemed to evidence the same debt as the mutilated, destroyed, lost or stolen Security or the Security to which the mutilated, destroyed, lost or stolen coupon
appertains. 
  

 7 

 “Redemption Date” means, when used with respect to any security to
be redeemed in whole or in part, the date fixed for such redemption by or pursuant to this Indenture. 
 “Redemption Price” means, when used with respect to any Security to be redeemed in whole or in part, the price at which it is to be redeemed pursuant to this Indenture. 
 “Registered Security” means any Security which is registered in the Security Register. 
 “Regular Record Date” for the installment of interest payable on any Interest Payment Date on the Registered
Securities of or within any series means the date specified for that purpose as contemplated by Section 301, whether or not a Business Day. 
 “Repayment Date” means, when used with respect to any Security to be repaid or repurchased at the option of the Holder, the date fixed for such repayment or repurchase by or pursuant to this
Indenture. 
 “Repayment Price” means, when used with respect to any Security to be repaid or purchased
at the option of the Holder, the price at which it is to be repaid or repurchased pursuant to this Indenture. 
 “Responsible Officer” means, with respect to the Trustee, any officer within the Corporate Trust Office including any vice president, assistant vice president, managing director, assistant treasurer, secretary, assistant secretary
or any other officer of the Trustee customarily performing functions similar to those performed by any of the above designated officers and having direct responsibility for the administration of this Indenture, and also, with respect to a particular
matter, any other officer to whom such matter is referred because of such officer’s knowledge of and familiarity with the particular subject. 
 “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder by the Commission. 
 “Security” has the meaning stated in the first recital of this Indenture and, more particularly, means any Security
or Securities authenticated and delivered under this Indenture; provided, however, that if at any time there is more than one Person acting as Trustee under this Indenture, “Securities” with respect to the Indenture as to which such Person
is Trustee shall have the meaning stated in the first recital of this Indenture and shall more particularly mean Securities authenticated and delivered under this Indenture, exclusive, however, of Securities of or within any series as to which such
Person is not Trustee. 
 “Security Register” and “Security Registrar” have the respective
meanings specified in Section 305. 
 “Significant Subsidiary” means any Subsidiary which is a
“significant subsidiary” (within the meaning of Regulation S-X, promulgated under the Securities Act) of the Company. The term Significant Subsidiary shall not include any Unum Group Trust. 
 “Special Record Date” for the payment of any Defaulted Interest on the Registered Securities of or within any
series means a date fixed by the Trustee pursuant to Section 307. 
 “Stated Maturity” means, when
used with respect to any Security or any installment of principal thereof or interest thereon, the date specified in such Security or a coupon representing such

  

 8 

 
installment of interest as the fixed date on which the principal of such Security or such installment of principal or interest is due and payable. 
 “Subsidiary” means, with respect to any Person, (a) any corporation or other entity of which a majority of
(i) the voting power of the voting equity securities or (ii) the outstanding equity interests of which are owned, directly or indirectly, by such Person or (b) any other Person which is otherwise controlled by such Person or by one or
more other Subsidiaries of such Person or by such Person and one or more other Subsidiaries of such Person. For the purposes of this definition, “voting equity securities” means equity securities having voting power for the election of
directors or other similar entity, whether at all times or only so long as no senior class of security has such voting power by reason of any contingency. 
 “Trust Indenture Act” or “TIA” means the Trust Indenture Act of 1939, as amended and as in force at the date as of which this Indenture was executed, except as provided in
Section 905. 
 “Trustee” means the Person named as the “Trustee” in the first paragraph
of this Indenture until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee hereunder; provided, however, that
if at any time there is more than one such Person, “Trustee” as used with respect to the Securities of or within any series shall mean only the Trustee with respect to the Securities of that series. 
 “United States” means, unless otherwise specified with respect to any Securities pursuant to Section 301, the
United States of America (including the states and the District of Columbia), its territories, its possessions and other areas subject to its jurisdiction. 
 “United States person” means, unless otherwise specified with respect to any Securities pursuant to Section 301, an individual who is a citizen or resident of the United States, a
corporation, partnership or other entity created or organized in or under the laws of the United States or any state or the District of Columbia or an estate or trust the income of which is subject to United States federal income taxation regardless
of its source. 
 “Unum Group Trust” means one or more statutory trusts, partnerships or limited
liability companies created by the Company (including Unum Group Financing Trust I and Unum Group Financing Trust II, each a Delaware statutory trust) for the purpose of issuing undivided beneficial interests therein in connection with the purchase
of Securities under any indenture. 
 “Yield to Maturity” means the yield to maturity, computed at the
time of issuance of a Security (or, if applicable, at the most recent predetermination of interest on such Security) and as set forth in such Security in accordance with generally accepted United States bond yield computation principles. 

SECTION 102 Compliance Certificates And Opinions. 
 Upon any application or request by the Company to the Trustee to take any action under any provision of this Indenture, the Company shall furnish to the Trustee an Officers’ Certificate stating that
all conditions precedent, if any, provided for in this Indenture (including covenants, compliance with which constitute conditions precedent) relating to the proposed action have been complied with and an Opinion of Counsel stating that in the
opinion of such counsel all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing

  

 9 

 
of such documents is specifically required by any provision of this Indenture relating to such particular application or request, no additional certificate or opinion need be furnished.

 Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture
(excluding certificates delivered pursuant to Section 1010) shall include: 
 (1) a statement that each
individual signing such certificate or opinion has read such condition or covenant and the definitions herein relating thereto; 
 (2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based; 
 (3) a statement that, in the opinion of each such individual, he has made such examination or investigation as is necessary
to enable him to express an informed opinion as to whether or not such condition or covenant has been complied with; and 
 (4) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with. 
 SECTION 103 Form Of Documents Delivered To Trustee. 
 In any case where
several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or
covered by only one document, but one such Person may certify or give an opinion as to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several
documents. 
 Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal matters, upon
an Opinion of Counsel, or a certificate or representations by counsel, unless such officer knows, or in the exercise of reasonable care should know, that the opinion, certificate or representations with respect to the matters upon which his
certificate or opinion is based are erroneous. Any such Opinion of Counsel or certificate or representations may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of
the Company stating that the information as to such factual matters is in the possession of the Company, unless such counsel knows that the certificate or opinion or representations as to such matters are erroneous. 
 Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or
other instruments under this Indenture, they may, but need not, be consolidated and form one instrument. 
 SECTION 104 Acts Of Holders.

 (a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be
given or taken by Holders of the Outstanding Securities of all series or one or more series, as the case may be, may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by agents
duly appointed in writing. If Securities of a series are issuable as Bearer Securities, any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders of Securities
of such series may, alternatively, be embodied in and evidenced by the record of Holders of Securities of such series voting in favor thereof, whether in person or by proxies duly appointed in writing, at any meeting of Holders of Securities of such
series duly called and held in

  

 10 

 
accordance with the provisions of Article Fifteen, or a combination of such instruments and any such record. Except as herein otherwise expressly provided, such action shall become effective when
such instrument or instruments or record or both are delivered to the Trustee and, where it is hereby expressly required, to the Company. Such instrument or instruments and any such record (and the action embodied therein and evidenced thereby) are
herein sometimes referred to as the “Act” of the Holders signing such instrument or instruments or so voting at any such meeting. Proof of execution of any such instrument or of a writing appointing any such agent, or of the holding by any
Person of a Security, shall be sufficient for any purpose of this Indenture and (subject to Section 612) conclusive in favor of the Trustee and the Company and any agent of the Trustee or the Company, if made in the manner provided in this
Section. The record of any meeting of Holders of Securities shall be proved in the manner provided in Section 1506. 
 (b)
The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by a certificate of a notary public or other officer authorized by law to take acknowledgments of
deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by a signer acting in a capacity other than his individual capacity, such certificate or affidavit shall also
constitute sufficient proof of his authority. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other reasonable manner which the Trustee deems
sufficient. 
 (c) The ownership of Registered Securities shall be proved by the Security Register or by a certificate of the
Security Registrar. 
 (d) The ownership of Bearer Securities may be proved by the production of such Bearer Securities or by a
certificate executed, as depository, by any trust company, bank, banker or other depository, wherever situated, if such certificate shall be deemed by the Trustee to be satisfactory, showing that at the date therein mentioned such person had on
deposit with such depository, or exhibited to it, the Bearer Securities therein described; or such facts may be proved by the certificate or affidavit of the Person holding such Bearer Securities, if such certificate or affidavit is deemed by the
Trustee to be satisfactory. The Trustee and the Company may assume that such ownership of any Bearer Security continues until (1) another certificate or affidavit bearing a later date issued in respect of the same Bearer Security is produced,
or (2) such Bearer Security is produced to the Trustee by some other Person, or (3) such Bearer Security is surrendered in exchange for a Registered Security, or (4) such Bearer Security is no longer Outstanding. The ownership of
Bearer Securities may also be proved in any other manner which the Trustee deems sufficient. 
 (e) If the Company shall solicit
from the Holders of Registered Securities any request, demand, authorization, direction, notice, consent, waiver or other Act, the Company may, at its option, in or pursuant to a Board Resolution, fix in advance a record date for the determination
of Holders entitled to give such request, demand, authorization, direction, notice, consent, waiver or other Act, but the Company shall have no obligation to do so. Notwithstanding TIA Section 316(c), such record date shall be the record date
specified in or pursuant to such Board Resolution, which shall be a date not earlier than the date 30 days prior to the first solicitation of Holders generally in connection therewith and not later than the date such solicitation is completed. If
such a record date is fixed, such request, demand, authorization, direction, notice, consent, waiver or other Act may be given before or after such record date, but only the Holders of record at the close of business on such record date shall be
deemed to be Holders for the purposes of determining whether Holders of the requisite proportion of Outstanding Securities have authorized or agreed or consented to such request, demand, authorization, direction, notice, consent, waiver or other
Act, and for that purpose the Outstanding Securities shall be computed as of such record date; provided that no such authorization, agreement or consent by the Holders on such

  

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record date shall be deemed effective unless it shall become effective pursuant to the provisions of this Indenture not later than eleven months after the record date. 
 (f) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Security shall bind every
future Holder of the same Security and the Holder of every Security issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Trustee, any Security
Registrar, any Paying Agent, any Authenticating Agent or the Company in reliance thereon, whether or not notation of such action is made upon such Security. 
 (g) The Trustee, in its sole discretion, may set any day as a record date for the purpose of determining the Holders of Outstanding Securities of any series entitled to join in the giving or making of
(i) any Notice of Default, (ii) any declaration of acceleration referred to in Section 502, (iii) any request to institute proceedings referred to in Section 507(2) or (iv) any direction referred to in Section 512,
in each case with respect to Securities of such series. If any record date is set pursuant to this paragraph, the Holders of Outstanding Securities of such series on such record date, and no other Holders, shall be entitled to join in such notice,
declaration, request or direction, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite
principal amount of Outstanding Securities of such series on such record date. Nothing in this paragraph shall be construed to prevent the Trustee from setting a new record date for any action for which a record date has previously been set pursuant
to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of
the requisite principal amount of Outstanding Securities of the relevant series on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Trustee, at the Company’s expense, shall cause notice of
such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Company in writing and to each Holder of Securities of the relevant series in the manner set forth in Section 106. 
 (h) With respect to any record date set pursuant to this Section, the party hereto which sets such record dates may designate any day as the
“Expiration Date” and from time to time may change the Expiration Date to any earlier or later day; provided that no such change shall be effective unless notice of the proposed new Expiration Date is given to the other party hereto in
writing, and to each Holder of Securities of the relevant series in the manner set forth in Section 106, on or prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any record date set pursuant to this
Section, the party hereto which set such record date shall be deemed to have initially designated the 180th day after such record date as the Expiration Date with respect thereto, subject to its right to change the Expiration Date as provided in
this paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day after the applicable record date. Without limiting the foregoing, a Holder entitled hereunder to take any action hereunder with regard to any
particular Security may do so with regard to all or any part of the principal amount of such Security or by one or more duly appointed agents each of which may do so pursuant to such appointment with regard to all or any part of such principal
amount. 
 SECTION 105 Notices, Etc., To The Trustee And Company. 
 Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other document provided or permitted by this
Indenture to be made upon, given or furnished to or filed with, 
  

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 (1) the Trustee by any Holder or by the Company shall be sufficient for
every purpose hereunder if made, given, furnished or filed in writing to or with the Trustee at its Corporate Trust Office, Attention: Corporate Trustee Administration, or 
 (2) the Company by the Trustee or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein
expressly provided) if in writing and mailed, first class postage prepaid, to the Company addressed to it at the address of its principal office specified in the first paragraph of this Indenture or at any other address previously furnished in
writing to the Trustee by the Company. 
 SECTION 106 Notice To Holders; Waiver. 
 Where this Indenture provides for notice of any event to Holders of Registered Securities by the Company or the Trustee, such notice shall be
sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each such Holder affected by such event, at his address as it appears in the Security Register, not later than the latest date,
and not earlier than the earliest date, prescribed for the giving of such notice. In any case where notice to Holders of Registered Securities is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to any
particular Holder shall affect the sufficiency of such notice with respect to other Holders of Registered Securities or the sufficiency of any notice to Holders of Bearer Securities given as provided herein. Any notice mailed to a Holder in the
manner herein prescribed shall be conclusively deemed to have been received by such Holder, whether or not such Holder actually receives such notice. 
 If by reason of the suspension of or irregularities in regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification to Holders of
Registered Securities as shall be made with the approval of the Trustee shall constitute a sufficient notification to such Holders for every purpose hereunder. 
 Except as otherwise expressly provided herein or otherwise specified with respect to any Securities pursuant to Section 301, where this Indenture provides for notice to Holders of Bearer Securities
of any event, such notice shall be sufficiently given if published in an Authorized Newspaper in The City of New York and in such other city or cities as may be specified in such Securities, and if the Securities of such series are listed on any
stock exchange outside the United States, in any place at which such Securities are listed on a securities exchange to the extent that such securities exchange so requires, on a Business Day, such publication to be not later than the latest date,
and not earlier than the earliest date, prescribed for the giving of such notice. Any such notice shall be deemed to have been given on the date of such publication or, if published more than once, on the date of the first such publication.

 If by reason of the suspension of publication of any Authorized Newspaper or Authorized Newspapers or by reason of any other
cause it shall be impracticable to publish any notice to Holders of Bearer Securities as provided above, then such notification to Holders of Bearer Securities as shall be given with the approval of the Trustee shall constitute sufficient notice to
such Holders for every purpose hereunder. Neither the failure to give notice by publication to any particular Holder of Bearer Securities as provided above, nor any defect in any notice so published, shall affect the sufficiency of such notice with
respect to other Holders of Bearer Securities or the sufficiency of any notice to Holders of Registered Securities given as provided herein. 
 Any request, demand, authorization, direction, notice, consent or waiver required or permitted under this Indenture shall be in the English language, except that any published notice may be in an official
language of the country of publication. 
  

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 Where this Indenture provides for notice in any manner, such notice may be waived in writing
by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent
to the validity of any action taken in reliance upon such waiver. 
 SECTION 107 Effect Of Headings And Table Of Contents. 
 The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

 SECTION 108 Successors And Assigns. 
 All covenants and agreements in this Indenture by the Company shall bind its successors and assigns, whether so expressed or not. 
 SECTION 109 Separability Clause. 
 In case any provision in this Indenture
or in any Security or coupon 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 110 Benefits Of Indenture. 
 Nothing in this Indenture or in the Securities or coupons appertaining thereto, express or implied, shall give to any Person, other than the parties hereto, any Security Registrar, any Paying Agent, any Authenticating Agent and their
successors hereunder and the Holders any benefit or any legal or equitable right, remedy or claim under this Indenture. 
 SECTION 111 No
Personal Liability. 
 No recourse under or upon any obligation, covenant or agreement contained in this Indenture, in any
Security or coupon appertaining thereto, or because of any indebtedness evidenced thereby, shall be had against any promoter, as such, or against any past, present or future shareholder, officer or director, as such, of the Company or of any
successor, either directly or through the Company or any successor, under any rule of law, statute or constitutional provision or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise, all such liability being
expressly waived and released by the acceptance of the Securities by the Holders thereof and as part of the consideration for the issue of the Securities. 
 SECTION 112 Governing Law; Waiver of Trial by Jury. 
 This Indenture and the
Securities and coupons shall be governed by and construed in accordance with the laws of the State of New York. This Indenture is subject to the provisions of the TIA that are required to be part of this Indenture and shall, to the extent
applicable, be governed by such provisions and any provisions of this Indenture that are not permitted by the provisions of the TIA shall be deemed to be deleted or modified to the extent such provisions are required to be deleted or modified for
the Indenture to be qualified under the TIA. Each of the Company and the Trustee irrevocably waives, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to this
Indenture or the transactions contemplated hereby. 
  

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 SECTION 113 Legal Holidays. 
 In any case where any Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity of any
Security or the last date on which a Holder has the right to convert or exchange a Security at a particular conversion or exchange price shall not be a Business Day at any Place of Payment, then (notwithstanding any other provision of this Indenture
or any Security or coupon other than a provision in the Securities of any series which specifically states that such provision shall apply in lieu hereof), payment of interest or any Additional Amounts or principal (and premium or Make-Whole Amount,
if any) need not be made at such Place of Payment on such date, conversion or exchange need not be made at such Place of Payment on such date, but may be made on the next succeeding Business Day at such Place of Payment with the same force and
effect as if made on the Interest Payment Date, Redemption Date, Repayment Date or sinking fund payment date, or at the Stated Maturity or Maturity or on such last day for conversion or exchange, provided that so long as such payment is made on the
next succeeding Business Day, no interest shall accrue on the amount so payable for the period from and after such Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity or on such last day for
conversion or exchange, as the case may be, to such Business Day. 
 ARTICLE TWO 
 SECURITIES FORMS 
 SECTION
201 Forms Of Securities. 
 The Registered Securities, if any, of each series and the Bearer Securities, if any, and
related coupons of each series, shall be in substantially the forms as shall be established in or pursuant to one or more indentures supplemental hereto or by or pursuant to authority granted by one or more Board Resolutions, shall have such
appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture or any indenture supplemental hereto, and may have such letters, numbers or other marks of identification or designation and such
legends or endorsements placed thereon as the Company may deem appropriate and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with any law or with any rule or regulation made pursuant thereto or with
any rule or regulation of any stock exchange on which the Securities may be listed or any Depository therefor, or to conform to usage. If temporary Securities of any series are issued as permitted by Section 304, the form thereof also shall be
established as provided in the preceding sentence. If the forms of Securities and coupons, if any, of any series are established by, or by action taken pursuant to, a Board Resolution, a copy of the Board Resolution together with an appropriate
record of any such action taken pursuant thereto, including a copy of the approved form of Securities or coupons, if any, shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Company Order contemplated by Section 303 for the authentication and delivery of such Securities. 
 Unless
otherwise specified as contemplated by Section 301, Bearer Securities shall have interest coupons attached. 
 The
definitive Securities and coupons shall be printed, lithographed or engraved or produced by any combination of these methods on a steel engraved border or steel engraved borders or may be produced in any other manner, all as determined by the
officers of the Company executing such Securities or coupons, as evidenced by their execution of such Securities or coupons. 
  

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 SECTION 202 Form Of Trustee’s Certificate Of Authentication. 
 Subject to Section 611, the Trustee’s certificate of authentication shall be in substantially the following form: 
 This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. 
  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE
		
	By:	 	/s/ AUTHORIZED SIGNATORY

 SECTION 203 Securities Issuable In Global Form. 
 If Securities of or within a series are issuable in global form, as specified as contemplated by Section 301, then, notwithstanding
clause (8) of Section 301 and the provisions of Section 302, any such Security shall represent such of the Outstanding Securities of such series as shall be specified therein and may provide that it shall represent the aggregate
amount of Outstanding Securities of such series from time to time endorsed thereon and that the aggregate amount of Outstanding Securities of such series represented thereby may from time to time be increased or decreased to reflect exchanges. Any
endorsement of a Security in global form to reflect the amount, or any increase or decrease in the amount, of Outstanding Securities represented thereby shall be made by the Trustee in such manner and upon written instruction given by such Person or
Persons as shall be specified therein or in the Company Order to be delivered to the Trustee pursuant to Section 303 or 304. Subject to the provisions of Section 303 and, if applicable, Section 304, the Trustee shall deliver and
redeliver any Security in permanent global form in the manner and upon written instructions given by the Person or Persons specified therein or in the applicable Company Order. If a Company Order pursuant to Section 303 or 304 has been, or
simultaneously is, delivered, any instructions by the Company with respect to endorsement or delivery or redelivery of a Security in global form shall be in writing but need not comply with Section 102 and need not be accompanied by an Opinion
of Counsel. 
 The provisions of the last sentence of Section 303 shall apply to any Security represented by a Security in
global form if such Security was never issued and sold by the Company and the Company delivers to the Trustee the Security in global form together with written instructions (which need not comply with Section 102 and need not be accompanied by
an Opinion of Counsel) with regard to the reduction in the principal amount of Securities represented thereby, together with the written statement contemplated by the last sentence of Section 303. 
 Notwithstanding the provisions of Section 307, unless otherwise specified as contemplated by Section 301, payment of principal of
and any premium or Make-Whole Amount and interest on any Security in permanent global form shall be made to the Person or Persons specified therein. 
 Notwithstanding the provisions of Section 308 and except as provided in the preceding paragraph, the Company, the Trustee and any agent of the Company and the Trustee shall treat as the Holder of
such principal amount of Outstanding Securities represented by a permanent global Security (i) in the case of a permanent global Security in registered form, the Holder of such permanent global Security in registered form, or (ii) in the
case of a permanent global Security in bearer form, Euroclear or Clearstream. 
  

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 ARTICLE THREE 
 THE SECURITIES 
 SECTION 301 Amount Unlimited; Issuable In
Series. 
 The aggregate principal amount of Securities which may be authenticated and delivered under this Indenture is
unlimited. 
 The Securities may be issued in one or more series. There shall be established in or pursuant to one or more Board
Resolutions or pursuant to authority granted by one or more Board Resolutions, or in an Officers’ Certificate, or indentures supplemental hereto, prior to the issuance of Securities of any series, any or all of the following, as applicable
(each of which (except for the matters set forth in clauses (1), (2) and (15) below), if so provided, may be determined from time to time by the Company with respect to unissued Securities of or within the series when issued from time to
time): 
 (1) the title of the Securities of or within the series (which shall distinguish the Securities of such
series from all other series of Securities); 
 (2) any limit upon the aggregate principal amount of the
Securities of or within the series that may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of or within the
series pursuant to Section 304, 305, 306, 906, 1107, or 1305); 
 (3) the date or dates, or the method by
which such date or dates will be determined, on which the principal of the Securities of or within the series shall be payable and the amount of principal payable thereon; 
 (4) the rate or rates (which may be fixed or variable) at which the Securities of or within the series shall bear interest,
if any, or the method by which such rate or rates shall be determined, the date or dates from which such interest shall accrue or the method by which such date or dates shall be determined, the Interest Payment Dates on which such interest will be
payable and the Regular Record Date, if any, for the interest payable on any Registered Security on any Interest Payment Date, or the method by which such date shall be determined, and the basis upon which interest shall be calculated if other than
that of a 360-day year consisting of twelve 30-day months; 
 (5) the place or places, if any, other than or in
addition to the City of Chattanooga, Tennessee or the Borough of Manhattan, The City of New York, where the principal of (and premium or Make-Whole Amount, if any), interest, if any, on, and Additional Amounts, if any, payable in respect of,
Securities of or within the series shall be payable, any Registered Securities of or within the series may be surrendered for registration of transfer, exchange or conversion and notices or demands to or upon the Company in respect of the Securities
of or within the series and this Indenture may be served; 
 (6) the period or periods within which, the price or
prices (including the premium or Make-Whole Amount, if any) at which, the currency or currencies, currency unit or units or composite currency or currencies in which and other terms and conditions upon which Securities of or within the series may be
redeemed in whole or in part, at the option of the Company, if the Company is to have the option; 
 (7) the
obligation, if any, of the Company to redeem, repay or purchase Securities of or within the series pursuant to any sinking fund or analogous provision or at the option of a Holder thereof, and the period or periods within which or the date or dates
on which, the price or prices at which,

  

 17 

 
the currency or currencies, currency unit or units or composite currency or currencies in which, and other terms and conditions upon which Securities of or within the series shall be redeemed,
repaid or purchased, in whole or in part, pursuant to such obligation; 
 (8) if other than denominations of
$1,000 and any integral multiple thereof, the denominations in which any Registered Securities of or within the series shall be issuable and, if other than the denomination of $5,000 and any integral multiple thereof, the denomination or
denominations in which any Bearer Securities of or within the series shall be issuable; 
 (9) if other than the
Trustee, the identity of each Security Registrar and/or Paying Agent; 
 (10) if other than the principal amount
thereof, the portion of the principal amount of Securities of or within the series that shall be payable upon declaration of acceleration of the maturity thereof pursuant to Section 502 or, if applicable, the portion of the principal amount of
Securities of or within the series that is convertible in accordance with the provisions of this Indenture, or the method by which such portion shall be determined; 
 (11) if other than Dollars, the Foreign Currency or Currencies in which payment of the principal of (and premium or
Make-Whole Amount, if any) or interest or Additional Amounts, if any, on the Securities of or within the series shall be payable or in which the Securities of or within the series shall be denominated; 
 (12) whether the amount of payments of principal of (and premium or Make-Whole Amount, if any) or interest, if any, on the
Securities of or within the series may be determined with reference to an index, formula or other method (which index, formula or method may be based, without limitation, on one or more currencies, currency units, composite currencies, commodities,
equity indices or other indices), and the manner in which such amounts shall be determined; 
 (13) whether the
principal of (and premium or Make Whole Amount, if any) or interest or Additional Amounts, if any, on the Securities of or within the series are to be payable, at the election of the Company or a Holder thereof, in a currency or currencies, currency
unit or units or composite currency or currencies other than that in which such Securities are denominated or stated to be payable, the period or periods within which, and the terms and conditions upon which, such election may be made, and the time
and manner of, and identity of the Exchange Rate Agent with responsibility for, determining the exchange rate between the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are denominated or
stated to be payable and the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are to be so payable; 
 (14) provisions, if any, granting special rights to the Holders of Securities of or within the series upon the occurrence of
such events as may be specified; 
 (15)(a) any deletions from, modifications of or additions to the Events of
Default with respect to Securities of or within the series, whether or not such Events of Default are consistent with the Events of Default set forth herein and (b) any deletions from, modifications of or additions to the covenants of the
Company set forth herein with respect to the Securities of or within the series, whether or not such covenants are consistent with the covenants set forth herein; 
 (16) whether Securities of or within the series are to be issuable as Registered Securities, Bearer Securities (with or
without coupons) or both, any restrictions applicable to the offer,

  

 18 

 
sale or delivery of Bearer Securities and the terms upon which Bearer Securities of or within the series may be exchanged for Registered Securities of or within the series and vice versa (if
permitted by applicable laws and regulations), whether any Securities of or within the series are to be issuable initially in temporary global form and whether any Securities of or within the series are to be issuable in permanent global form (with
or without coupons) and, if so, whether beneficial owners of interests in any such permanent global Security may exchange such interests for Securities of such series and of like tenor of any authorized form and denomination and the circumstances
under which any such exchanges may occur, if other than in the manner provided in Section 305, and, if Registered Securities of or within the series are to be issuable as a global Security, the identity of the depository for such series;

 (17) the date as of which any Bearer Securities of or within the series and any temporary global Security
representing Outstanding Securities of or within the series shall be dated if other than the date of original issuance of the first Security of the series to be issued; 
 (18) the Person to whom any interest on any Registered Security of the series shall be payable, if other than the Person in
whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, the manner in which, or the Person to whom, any interest on any Bearer Security of the series shall
be payable, if otherwise than upon presentation and surrender of the coupons appertaining thereto as they severally mature, and the extent to which, or the manner in which, any interest payable on a temporary global Security on an Interest Payment
Date will be paid if other than in the manner provided in Section 304; 
 (19) the applicability, if any, of
Sections 1402 and/or 1403 to the Securities of or within the series and any provisions in modification of, in addition to or in lieu of any of the provisions of Article Fourteen and, if the Securities of the series are payable in a currency other
than Dollars, whether, for purposes of such defeasance or covenant defeasance the term “Government Obligations” shall include obligations referred to in the definition of such term which are not obligations of the United States or an
agency or an instrumentality thereof; 
 (20) if the Securities of such series are to be issuable in definitive
form (whether upon original issue or upon exchange of a temporary Security of such series) only upon receipt of certain certificates or other documents or satisfaction of other conditions, then the form and/or terms of such certificates, documents
or conditions; 
 (21) if the Securities of or within the series are to be issued upon the exercise of debt
warrants, the time, manner and place for such Securities to be authenticated and delivered; 
 (22) whether and
under what circumstances the Company will pay Additional Amounts as contemplated by Section 1011 on the Securities of or within the series to any Holder who is not a United States person (including any modification to the definition of such
term) in respect of any tax, assessment or governmental charge and, if so, whether the Company will have the option to redeem such Securities rather than pay such Additional Amounts (and the terms of any such option); 
 (23) the obligation, if any, of the Company to permit the Securities of such series to be converted into or exchanged for
common stock of the Company or other securities or property of the Company and the terms and conditions upon which such conversion or exchange shall be effected (including, without limitation, the initial conversion price or rate, the conversion or
exchange period, any adjustment of the applicable conversion or exchange price or rate and any requirements relative to the reservation of such shares for purposes of conversion or exchange); 
  

 19 

 (24) if convertible or exchangeable, any applicable limitations on the
ownership or transferability of the securities or property into which such Securities are convertible or exchangeable; and 
 (25) if the principal amount payable at the Stated Maturity of any Securities of the series will not be determinable as of any one or more dates prior to the Stated Maturity, the amount which shall be
deemed to be the principal amount of such Securities as of any such date for any purpose thereunder or hereunder, including the principal amount thereof which shall be due and payable upon any Maturity other than the Stated Maturity or which shall
be deemed to be Outstanding as of any date prior to the Stated Maturity (or, in any such case, the manner in which such amount deemed to be the principal amount shall be determined); 
 (26) any other terms of the series (which terms shall not be inconsistent with the provisions of this Indenture except as
permitted by Section 901(5)). 
 All Securities of any one series and the coupons appertaining to any Bearer Securities of
such series, if any, shall be substantially identical except, in the case of Registered or Bearer Securities issued in global form, as to denomination and except as may otherwise be provided in or pursuant to such Board Resolution or in any
indenture supplemental hereto. All Securities of any one series need not be issued at the same time and, unless otherwise provided, a series may be reopened, without the consent of the Holders, for issuances of additional Securities of such series.

 If any of the terms of the Securities of any series are established by action taken pursuant to, or by authority granted
pursuant to, one or more Board Resolutions, a copy of an appropriate record of such action(s) shall be certified by the Secretary or an Assistant Secretary of the Company and delivered to the Trustee at or prior to the delivery of the Company Order
for authentication and delivery of such Securities. 
 SECTION 302 Denominations. 
 The Securities of each series shall be issuable in such denominations as shall be specified as contemplated by Section 301. With respect
to Securities of any series denominated in Dollars, in the absence of any such provisions with respect to the Securities of any series, the Registered Securities of such series, other than Registered Securities issued in global form (which may be of
any denomination), shall be issuable in denominations of $1,000 and any integral multiple thereof and the Bearer Securities of such series other than Bearer Securities issued in global form (which may be of any denomination), shall be issuable in
denominations of $5,000. 
 SECTION 303 Execution, Authentication, Delivery And Dating. 
 The Securities and any coupons appertaining thereto shall be executed on behalf of the Company by its President or a Vice President. The
signature of any of these officers on the Securities and coupons may be manual or facsimile signatures of the present or any future such authorized officer and may be imprinted or otherwise reproduced on the Securities. 
 Securities or coupons appertaining thereto bearing the manual or facsimile signatures of individuals who were at any time the proper
officers of the Company shall bind the Company, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Securities or did not hold such offices at the date of such
Securities or coupons. 
  

 20 

 At any time and from time to time after the execution and delivery of this Indenture, the
Company may deliver Securities of any series, together with any coupon appertaining thereto, executed by the Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Securities, and the
Trustee in accordance with the Company Order shall authenticate and deliver such Securities; provided, however, that, in connection with its original issuance, no Bearer Security shall be mailed or otherwise delivered to any location in the United
States; and provided further that, unless otherwise specified with respect to any series of Securities pursuant to Section 301 a Bearer Security may be delivered in connection with its original issuance only if the Person entitled to receive
such Bearer Security shall have furnished a certificate to Euroclear or Clearstream, as the case may be, in the form set forth in Exhibit A-1 to this Indenture or such other certificate as may be specified with respect to any series of Securities
pursuant to Section 301, dated no earlier than 15 days prior to the earlier of the date on which such Bearer Security is delivered and the date on which any temporary Security first becomes exchangeable for such Bearer Security in accordance
with the terms of such temporary Security and this Indenture. Except as permitted by Section 306, the Trustee shall not authenticate and deliver any Bearer Security unless all appurtenant coupons for interest then matured have been detached and
canceled. 
 If all of the Securities are not to be issued at one time and if the Board Resolution or supplemental indenture
establishing such series shall so permit, such Company Order may set forth procedures acceptable to the Trustee for the issuance of such Securities and determining the terms of particular Securities of such series, such as interest rate or formula,
maturity date, date of issuance and date from which interest shall accrue. In authenticating Securities, and accepting the additional responsibilities under this Indenture in relation to such Securities, the Trustee shall be entitled to receive, and
(subject to Section 612 and TIA Section 315(a) through 315(d)) shall be fully protected in conclusively relying upon: 
 (i) an Opinion of Counsel complying with Section 102 and stating that: 
 (a) the form or forms of such Securities and any coupons have been, or will have been upon compliance with such procedures as may be specified therein, established in conformity with the provisions of
this Indenture; 
 (b) the terms of such Securities and any coupons have been, or will have been upon compliance
with such procedures as may be specified therein, established in conformity with the provisions of this Indenture; and 
 (c) such Securities, together with any coupons appertaining thereto, when completed pursuant to such procedures as may be specified therein, and executed and delivered by the Company to the Trustee for authentication in accordance with this
Indenture, authenticated and delivered by the Trustee in accordance with this Indenture and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute legal, valid and binding obligations
of the Company, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency, reorganization and other similar laws of general applicability relating to or affecting the enforcement of creditors’ rights generally and
to general equitable principles and to such other matters as may be specified therein; and 
 (ii) an
Officers’ Certificate complying with Section 102 and stating that all conditions precedent provided for in this Indenture relating to the issuance of such Securities have been, or will have been upon compliance with such procedures as may
be specified therein, complied with and that, to the best of the knowledge of the signers of such certificate, no Event of Default with respect to such Securities shall have occurred and be continuing. 
  

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 Notwithstanding the provisions of Section 301 and of the preceding paragraph, if all
the Securities of any series are not to be issued at one time, it shall not be necessary to deliver a Company Order, an Opinion of Counsel or an Officers’ Certificate otherwise required pursuant to the preceding paragraph at the time of
issuance of each Security of such series, but such order, opinion and certificate, with appropriate modifications to cover such future issuances, shall be delivered at or before the time of issuance of the first Security of such series. 

The Trustee shall not be required to authenticate such Securities if the issue of such Securities pursuant to this Indenture will affect
the Trustee’s own rights, duties, obligations or immunities under the Securities and this Indenture or otherwise in a manner which is not reasonably acceptable to the Trustee. 
 Each Registered Security shall be dated the date of its authentication and each Bearer Security shall be dated as of the date specified as
contemplated by Section 301. 
 No Security or coupon appertaining thereto shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on such Security or the Security to which such coupon appertains a certificate of authentication substantially in the form provided for herein duly executed by the Trustee by
manual signature of an authorized signatory, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder and is entitled to the benefits of this
Indenture. Notwithstanding the foregoing, if any Security shall have been authenticated and delivered hereunder but never issued and sold by the Company, and the Company shall deliver such Security to the Trustee for cancellation as provided in
Section 309 together with a written statement (which need not comply with Section 102 and need not be accompanied by an Opinion of Counsel) stating that such Security has never been issued or sold by the Company, for all purposes of this
Indenture such Security shall be deemed never to have been authenticated and delivered hereunder and shall never be entitled to the benefits of this Indenture. 
 SECTION 304 Temporary Securities. 
 (a) Pending the preparation of
definitive Securities of any series, the Company may execute, and upon Company Order the Trustee shall authenticate and deliver, temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu of which they are issued, in registered form, or, if authorized, in bearer form with one or more coupons or without coupons, and with such appropriate insertions,
omissions, substitutions and other variations as the officers of the Company executing such Securities may determine, as conclusively evidenced by their execution of such Securities. In the case of Securities of any series, such temporary Securities
may be in global form. 
 Except in the case of temporary Securities in global form (which shall be exchanged in accordance with
Section 304(b) or as otherwise provided in or pursuant to a Board Resolution), if temporary Securities of any series are issued, the Company will cause definitive Securities of that series to be prepared without unreasonable delay. After the
preparation of definitive Securities of such series, the temporary Securities of such series shall be exchangeable for definitive Securities of such series upon surrender of the temporary Securities of such series at the office or agency of the
Company in a Place of Payment for that series, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any series (accompanied by any non-matured coupons appertaining thereto), the Company shall
execute and the Trustee shall authenticate and deliver in exchange therefor a like principal amount of definitive Securities of the same series of authorized denominations; provided, however, that no definitive Bearer Security shall be delivered in
exchange for a temporary Registered Security; and provided further that a definitive Bearer Security shall be delivered in exchange for a temporary Bearer Security only in compliance with the conditions set forth in Section 303. Until so
exchanged, the

  

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temporary Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of such series. 
 (b) Unless otherwise provided as contemplated in Section 301, this Section 304(b) shall govern the exchange of temporary Securities
issued in global form other than through the facilities of DTC. If any such temporary Security is issued in global form, then such temporary global Security shall, unless otherwise provided therein, be delivered to the London office of a depository
or common depository (the “Common Depository”), for the benefit of Euroclear and Clearstream. 
 Without unnecessary
delay but in any event not later than the date specified in, or determined pursuant to the terms of, any such temporary global Security (the “Exchange Date”), the Company shall deliver to the Trustee definitive Securities, in an aggregate
principal amount equal to the principal amount of such temporary global Security, executed by the Company. On or after the Exchange Date, such temporary global Security shall be surrendered by the Common Depository to the Trustee, as the
Company’s agent for such purpose, to be exchanged, in whole or from time to time in part, for definitive Securities without charge, and the Trustee shall authenticate and deliver, in exchange for each portion of such temporary global Security,
an equal aggregate principal amount of definitive Securities of or within the same series of authorized denominations and of like tenor as the portion of such temporary global Security to be exchanged. The definitive Securities to be delivered in
exchange for any such temporary global Security shall be in bearer form, registered form, permanent global bearer form or permanent global registered form, or any combination thereof, as specified as contemplated by Section 301, and, if any
combination thereof is so specified, as requested by the beneficial owner thereof; provided, however, that, unless otherwise specified in such temporary global Security, upon such presentation by the Common Depository, such temporary global Security
is accompanied by a certificate dated the Exchange Date or a subsequent date and signed by Euroclear as to the portion of such temporary global Security, if any, held for its account then to be exchanged and a certificate dated the Exchange Date or
a subsequent date and signed by Clearstream as to the portion of such temporary global Security, if any, held for its account then to be exchanged, each in the form set forth in Exhibit A-2 to this Indenture or in such other form as may be
established pursuant to Section 301; and provided further that definitive Bearer Securities shall be delivered in exchange for a portion of a temporary global Security only in compliance with the requirements of Section 303. 
 Unless otherwise specified in such temporary global Security, the interest of a beneficial owner of Securities of a series in a temporary
global Security shall be exchanged for definitive Securities of the same series and of like tenor following the Exchange Date when the account holder instructs Euroclear or Clearstream, as the case may be, to request such exchange on his behalf and
delivers to Euroclear or Clearstream, as the case may be, a certificate in the form set forth in Exhibit A-1 to this Indenture (or in such other form as may be established pursuant to Section 301), dated no earlier than 15 days prior to the
Exchange Date, copies of which certificate shall be available from the offices of Euroclear or Clearstream, the Trustee, any Authenticating Agent appointed for such series of Securities and each Paying Agent. Unless otherwise specified in such
temporary global Security, any such exchange shall be made free of charge to the beneficial owners of such temporary global Security, except that a Person receiving definitive Securities must bear the cost of insurance, postage, transportation and
the like unless such Person takes delivery of such definitive Securities in person at the offices of Euroclear or Clearstream. Definitive Securities in bearer form to be delivered in exchange for any portion of a temporary global Security shall be
delivered only outside the United States. 
 Until exchanged in full as hereinabove provided, the temporary Securities of any
series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of the same series and of like tenor authenticated and delivered hereunder, except that, unless otherwise specified as contemplated by
Section 301, interest payable on a temporary global Security on an Interest Payment

  

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Date for Securities of such series occurring prior to the applicable Exchange Date shall be payable to Euroclear or Clearstream on such Interest Payment Date upon delivery by Euroclear or
Clearstream to the Trustee of a certificate or certificates in the form set forth in Exhibit A-2 to this Indenture (or in such other forms as may be established pursuant to Section 301), for credit without further interest on or after such
Interest Payment Date to the respective accounts of Persons who are the beneficial owners of such temporary global Security on such Interest Payment Date and who have each delivered to Euroclear or Clearstream, as the case may be, a certificate
dated no earlier than 15 days prior to the Interest Payment Date occurring prior to such Exchange Date in the form set forth as Exhibit A-1 to this Indenture (or in such other forms as may be established pursuant to Section 301).
Notwithstanding anything to the contrary herein contained, the certifications made pursuant to this paragraph shall satisfy the certification requirements of the preceding two paragraphs of this Section 304(b) and of the third paragraph of
Section 303 of this Indenture and the interests of the Persons who are the beneficial owners of the temporary global Security with respect to which such certification was made will be exchanged for definitive Securities of the same series and
of like tenor on the Exchange Date or the date of certification if such date occurs after the Exchange Date, without further act or deed by such beneficial owners. Except as otherwise provided in this paragraph, no payments of principal or interest
owing with respect to a beneficial interest in a temporary global Security will be made unless and until such interest in such temporary global Security shall have been exchanged for an interest in a definitive Security. Any interest so received by
Euroclear or Clearstream and not paid as herein provided shall be returned to the Trustee prior to the expiration of two years after such Interest Payment Date in order to be repaid to the Company. 
 SECTION 305 Registration, Registration Of Transfer And Exchange. 
 The Company shall cause to be kept at the Corporate Trust Office of the Trustee or in any office or agency of the Company in a Place of Payment a register for each series of Securities (the registers
maintained in such office or in any such office or agency of the Company in a Place of Payment being herein sometimes referred to collectively as the “Security Register”) in which, subject to such reasonable regulations as it or the
Security Registrar may prescribe, the Company shall provide for the registration of Registered Securities and of transfers of Registered Securities. The Security Register shall be in written form or any other form capable of being converted into
written form within a reasonable time. The Trustee, at its Corporate Trust Office, is hereby initially appointed “Security Registrar” for the purpose of registering Registered Securities and transfers of Registered Securities on such
Security Register as herein provided. In the event that the Trustee shall cease to be Security Registrar, it shall have the right to examine the Security Register at all reasonable times and to require that a copy of the Security Register in written
form be delivered to it from time to time as reasonably requested. Subject to the provisions of this Section 305, upon surrender for registration of transfer of any Registered Security of any series at any office or agency of the Company in a
Place of Payment for that series, the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Registered Securities of the same series, of any authorized
denominations and of a like aggregate principal amount, bearing a number not contemporaneously outstanding, and containing identical terms and provisions. 
 Subject to the provisions of this Section 305, at the option of the Holder, Registered Securities of any series (not in global form) may be exchanged for other Registered Securities of the same
series, of any authorized denomination or denominations and of a like aggregate principal amount, containing identical terms and provisions, upon surrender of the Registered Securities to be exchanged at any such office or agency. Whenever any such
Registered Securities are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Registered Securities which the Holder making the exchange is entitled to receive. Unless otherwise specified with
respect to any series of Securities as contemplated by Section 301, Bearer Securities may not be issued in exchange for Registered Securities. 
  

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 If (but only if) permitted as contemplated by Section 301, at the option of the Holder,
Bearer Securities of any series may be exchanged for Registered Securities of the same series of any authorized denominations and of a like aggregate principal amount and tenor, upon surrender of the Bearer Securities to be exchanged at any such
office or agency, with all unmatured coupons and all matured coupons in default thereto appertaining. If the Holder of a Bearer Security is unable to produce any such unmatured coupon or coupons or matured coupon or coupons in default, any such
permitted exchange may be effected if the Bearer Securities are accompanied by payment in funds acceptable to the Company in an amount equal to the face amount of such missing coupon or coupons, or the surrender of such missing coupon or coupons may
be waived by the Company and the Trustee if there is furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to any Paying Agent
any such missing coupon in respect of which such a payment shall have been made, such Holder shall be entitled to receive the amount of such payment; provided, however, that, except as otherwise provided in Section 1002, interest represented by
coupons shall be payable only upon presentation and surrender of those coupons at an office or agency located outside the United States. Notwithstanding the foregoing, in case a Bearer Security of any series is surrendered at any such office or
agency in a permitted exchange for a Registered Security of the same series and like tenor after the close of business at such office or agency on (i) any Regular Record Date and before the opening of business at such office or agency on the
relevant Interest Payment Date, or (ii) any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the
coupon relating to such Interest Payment Date or proposed date for payment, as the case may be, and interest or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may
be, in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture. Whenever any Securities are so surrendered for
exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Securities which the holder making the exchange is entitled to receive. 
 Notwithstanding the foregoing, except as otherwise specified as contemplated by Section 301, any permanent global Security shall be exchangeable only as provided in this paragraph. If the depository
for any permanent global Security is DTC, then, unless the terms of such global Security expressly permit such global Security to be exchanged in whole or in part for definitive Securities, a global Security may be transferred, in whole but not in
part, only to a nominee of DTC, or by a nominee of DTC to DTC, or to a successor to DTC for such global Security selected or approved by the Company or to a nominee of such successor to DTC. If at any time DTC notifies the Company that it is
unwilling or unable to continue as depository for the applicable global Security or Securities or if at any time DTC ceases to be a clearing agency registered under the Exchange Act if so required by applicable law or regulation, the Company shall
appoint a successor depository with respect to such global Security or Securities. If (x) a successor depository for such global Security or Securities is not appointed by the Company within 90 days after the Company receives such notice or
becomes aware of such unwillingness, inability or ineligibility, (y) an Event of Default has occurred and is continuing and the beneficial owners representing a majority in principal amount of the applicable series of Securities represented by
such global Security or Securities advise DTC to cease acting as depository for such global Security or Securities or (z) the Company, in its sole discretion and subject to the procedures of DTC, determines at any time that all Outstanding
Securities (but not less than all) of any series issued or issuable in the form of one or more global Securities shall no longer be represented by such global Security or Securities (provided, however, the Company may not make such determination
during the 40-day restricted period provided by Regulation S under the Securities Act or during any other similar period during which the Securities must be held in global form as may be required by the Securities Act), then the Company shall
execute, and the Trustee shall authenticate and deliver definitive Securities of like series, rank, tenor and terms in definitive form in an aggregate principal amount equal to the principal amount of such global Security or Securities. If

  

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any beneficial owner of an interest in a permanent global Security is otherwise entitled to exchange such an interest for Securities of such series and of like tenor and principal amount of
another authorized form and denomination, as specified as contemplated by Section 301 and provided that any applicable notice provided in the permanent global Security shall have been given, then without unnecessary delay but in any event not
later than the earliest date on which such interest may be so exchanged, the Company shall execute, and the Trustee shall authenticate and deliver definitive Securities in aggregate principal amount equal to the principal amount of such beneficial
owner’s interest in such permanent global Security. On or after the earliest date on which such interests may be so exchanged, such permanent global Security shall be surrendered for exchange by DTC or such other depository as shall be
specified in the Company Order with respect thereto to the Trustee, as the Company’s agent for such purpose; provided, however, that no such exchanges may occur during a period beginning at the opening of business 15 days before any selection
of Securities to be redeemed and ending on the relevant Redemption Date if the Security for which exchange is requested may be among those selected for redemption; and provided further that no Bearer Security delivered in exchange for a portion of a
permanent global Security shall be mailed or otherwise delivered to any location in the United States. If a Registered Security is issued in exchange for any portion of a permanent global Security after the close of business at the office or agency
where such exchange occurs on (i) any Regular Record Date and before the opening of business at such office or agency on the relevant Interest Payment Date, or (ii) any Special Record Date and before the opening of business at such office
or agency on the related proposed date for payment of Defaulted Interest, interest or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may be, in respect of such
Registered Security, but will be payable on such Interest Payment Date or proposed date for payment, as the case may be, only to the Person to whom interest in respect of such portion of such permanent global Security is payable in accordance with
the provisions of this Indenture. 
 All Securities issued upon any registration of transfer or exchange of Securities shall be
the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities surrendered upon such registration of transfer or exchange. 
 Every Registered Security presented or surrendered for registration of transfer or for exchange or redemption shall (if so required by the
Company, the Trustee or the Security Registrar) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Security Registrar, duly executed by the Holder thereof or his attorney duly authorized in writing.

 No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require
payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Securities, other than exchanges pursuant to Section 304, 906, 1107 or 1305 not
involving any transfer. 
 The Company or the Trustee, as applicable, shall not be required (i) to issue, register the
transfer of or exchange any Security if such Security may be among those selected for redemption during a period beginning at the opening of business 15 days before selection of the Securities to be redeemed under Section 1103 and ending at the
close of business on (A) if such Securities are issuable only as Registered Securities, the day of the mailing of the relevant notice of redemption and (B) if such Securities are issuable as Bearer Securities, the day of the first
publication of the relevant notice of redemption or, if such Securities are also issuable as Registered Securities and there is no publication, the mailing of the relevant notice of redemption, or (ii) to register the transfer of or exchange
any Registered Security so selected for redemption in whole or in part, except, in the case of any Registered Security to be redeemed in part, the portion thereof not to be redeemed, or (iii) to exchange any Bearer Security so selected for
redemption except that such a Bearer Security may be exchanged for a Registered Security of that series and like tenor, provided that such Registered Security shall be simultaneously surrendered for

  

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redemption, or (iv) to issue or to register the transfer or exchange of any Security which has been surrendered for repayment at the option of the Holder, except the portion, if any, of such
Security not to be so repaid. 
 SECTION 306 Mutilated, Destroyed, Lost And Stolen Securities. 
 If any mutilated Security or a Security with a mutilated coupon appertaining to it is surrendered to the Trustee or the Company, together
with such security or indemnity as may be required by the Company or the Trustee to save each of them or any agent of either of them harmless, the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor a new
Security of the same series and principal amount, containing identical terms and provisions and bearing a number not contemporaneously outstanding, with coupons corresponding to the coupons, if any, appertaining to the surrendered Security.

 If there shall be delivered to the Company and to the Trustee (i) evidence to their satisfaction of the destruction,
loss or theft of any Security or coupon, and (ii) such security or indemnity as may be required by them to save each of them and any agent of either of them harmless, then, in the absence of actual notice to the Company or the Trustee that such
Security or coupon has been acquired by a bona fide purchaser, the Company shall execute and upon its written request the Trustee shall authenticate and deliver, in lieu of any such destroyed, lost or stolen Security or in exchange for the Security
to which a destroyed, lost or stolen coupon appertains (with all appurtenant coupons not destroyed, lost or stolen), a new Security of the same series and principal amount, containing identical terms and provisions and bearing a number not
contemporaneously outstanding, with coupons corresponding to the coupons, if any, appertaining to such destroyed, lost or stolen Security or to the Security to which such destroyed, lost or stolen coupon appertains. 
 Notwithstanding the provisions of the previous two paragraphs, in case any such mutilated, destroyed, lost or stolen Security or coupon has
become or is about to become due and payable, the Company in its discretion may, instead of issuing a new Security, with coupons corresponding to coupons, if any, appertaining to such destroyed, lost or stolen Security or to the Security to which
such destroyed, lost or stolen coupon appertains, pay such Security or coupon; provided, however, that payment of principal of (and premium or Make-Whole Amount, if any), any interest on and any Additional Amounts with respect to Bearer Securities
shall, except as otherwise provided in Section 1002, be payable only at an office or agency located outside the United States and, unless otherwise specified as contemplated by Section 301, any interest on Bearer Securities shall be
payable only upon presentation and surrender of the coupons appertaining thereto. 
 Upon the issuance of any new Security under
this Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected therewith.

 Every new Security of any series with its coupons, if any, issued pursuant to this Section in lieu of any destroyed, lost or
stolen Security, or in exchange for a Security to which a destroyed, lost or stolen coupon appertains, shall constitute an original additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Security and its
coupons, if any, or the destroyed, lost or stolen coupon shall be at any time enforceable by anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities of that series and their
coupons, if any, duly issued hereunder. 
 The provisions of this Section are exclusive and shall preclude (to the extent
lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons. 
  

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 SECTION 307 Payment Of Interest; Interest Rights Preserved. 
 Except as otherwise specified with respect to a series of Securities in accordance with the provisions of Section 301, interest on any
Registered Security that is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on
the Regular Record Date for such interest at the office or agency of the Company maintained for such purpose pursuant to Section 1002; provided, however, that each installment of interest on any Registered Security may at the Company’s
option be paid by (i) mailing a check for such interest, payable to or upon the written order of the Person entitled thereto pursuant to Section 308, to the address of such Person as it appears on the Security Register or
(ii) transfer to an account maintained by the payee located inside the United States. 
 Unless otherwise provided as
contemplated by Section 301 with respect to the Securities of any series, payment of interest may be made, in the case of a Bearer Security, by transfer to an account maintained by the payee with a bank located outside the United States.

 In case a Bearer Security of any series is surrendered in exchange for a Registered Security of such series after the close
of business (at an office or agency in a Place of Payment for such series) on any Regular Record Date and before the opening of business (at such office or agency) on the next succeeding Interest Payment Date, such Bearer Security shall be
surrendered without the coupon relating to such Interest Payment Date and interest will not be payable on such Interest Payment Date in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the
Holder of such coupon when due in accordance with the provisions of this Indenture. 
 Except as otherwise specified with
respect to a series of Securities in accordance with the provisions of section 301, any interest on any Registered Security of any series that is payable, but is not punctually paid or duly provided for, on any Interest Payment Date (herein called
“Defaulted Interest”) shall forthwith cease to be payable to the registered Holder thereof on the relevant Regular Record Date by virtue of having been such Holder, and such Defaulted Interest may be paid by the Company, at its election in
each case, as provided in clause (1) or (2) below: 
 (1) The Company may elect to make payment of any
Defaulted Interest to the Persons in whose names the Registered Securities of such series (or their respective Predecessor Securities) are registered at the close of business on a Special Record Date for the payment of such Defaulted Interest, which
shall be fixed in the following manner. The Company shall notify the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each Registered Security of such series and the date of the proposed payment (which shall not be less
than 20 days after such notice is received by the Trustee), and at the same time the Company shall deposit with the Trustee an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the
Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements
satisfactory to the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Interest as in this clause provided. Thereupon the
Trustee shall fix a Special Record Date for the payment of such Defaulted Interest which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment and not less than 10 days after the receipt by the Trustee of
the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date and, in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Interest and the Special
Record Date therefor to be mailed, first-class postage prepaid, to each Holder of Registered Securities of such series at his address as it appears in the Security Register not less than 10 days prior to such Special Record Date. Notice of the
proposed payment of such Defaulted

  

 28 

 
Interest and the Special Record Date therefor having been mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in whose names the Registered Securities of such series (or
their respective Predecessor Securities) are registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following clause (2). In case a Bearer Security of any series is surrendered at the office or
agency in a Place of Payment for such series in exchange for a Registered Security of such series after the close of business at such office or agency on any Special Record Date and before the opening of business at such office or agency on the
related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the coupon relating to such proposed date of payment and Defaulted Interest will not be payable on such proposed date of payment in respect of
the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture. 
 (2) The Company may make payment of any Defaulted Interest on the Registered Securities of any series in any other lawful
manner not inconsistent with the requirements of any securities exchange on which such Securities may be listed, and upon such notice as may be required by such exchange, if, after written notice given by the Company to the Trustee of the proposed
payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee. 
 Subject to the foregoing
provisions of this Section and Section 305, each Security delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Security shall carry the rights to interest accrued and unpaid, and to accrue,
which were carried by such other Security. 
 Subject to the provisions of Section 1402 and except as otherwise specified
with respect to a series of Securities in accordance with the provisions of section 301, in the case of any Security which is converted or exchanged after any Regular Record Date and on or prior to the next succeeding Interest Payment Date (other
than any Security, the principal of (or premium, if any, on) which shall become due and payable, whether at a Stated Maturity or by declaration of acceleration, call for redemption, or otherwise, prior to such Interest Payment Date), interest whose
Stated Maturity is on such Interest Payment Date shall be payable on such Interest Payment Date notwithstanding such conversion or exchange, and such interest (whether or not punctually paid or duly provided for) shall be paid to the Person in whose
name that Security (or one or more Predecessor Securities) is registered at the close of business on such Regular Record Date. Except as otherwise expressly provided in the immediately preceding sentence, in the case of any Security which is
converted or exchanged, interest whose Stated Maturity is after the date of conversion or exchange of such Security shall not be payable. 
 SECTION 308 Persons Deemed Owners. 
 Prior to due presentment of a Registered Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name such Registered Security is registered as the owner of such Security for the purpose of receiving payment of principal of (and premium
or Make-Whole Amount, if any), and (subject to Sections 305 and 307) interest on and Additional Amounts with respect to, such Registered Security and for all other purposes whatsoever, whether or not such Registered Security be overdue, and neither
the Company, the Trustee nor any agent of the Company or the Trustee shall be affected by notice to the contrary. 
 Title to
any Bearer Security and any coupons appertaining thereto shall pass by delivery. The Company, the Trustee and any agent of the Company or the Trustee may treat the Holder of any Bearer Security and the Holder of any coupon as the absolute owner of
such Security or coupon for the purpose of receiving payment thereof or on account thereof and for all other purposes whatsoever, whether or not such Security or coupon be overdue, and neither the Company, the Trustee nor any agent of the Company or
the Trustee shall be affected by notice to the contrary. 
  

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 None of the Company, the Trustee, any Paying Agent or the Security Registrar will have any
responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Security in global form or for maintaining, supervising or reviewing any records relating to such beneficial
ownership interests. 
 Notwithstanding the foregoing, with respect to any global Security, nothing herein shall prevent the
Company, the Trustee, or any agent of the Company or the Trustee, from giving effect to any written certification, proxy or other authorization furnished by any depository, as a Holder, with respect to such global Security or impair, as between such
depository and owners of beneficial interests in such global Security, the operation of customary practices governing the exercise of the rights of such depository (or its nominee) as Holder of such global Security. 
 SECTION 309 Cancellation. 
 All Securities and coupons surrendered for payment, redemption, repayment at the option of the Holder, registration of transfer or exchange or for credit against any sinking fund payment shall, if surrendered to any Person other than the
Trustee, be delivered to the Trustee, and any such Securities and coupons and Securities and coupons surrendered directly to the Trustee for any such purpose shall be promptly canceled by it. The Company may at any time deliver to the Trustee for
cancellation any Securities previously authenticated and delivered hereunder which the Company may have acquired in any manner whatsoever, and may deliver to the Trustee (or to any other Person for delivery to the Trustee) for cancellation any
Securities previously authenticated hereunder which the Company has not issued and sold, and all Securities so delivered shall be promptly canceled by the Trustee. If the Company shall so acquire any of the Securities, however, such acquisition
shall not operate as a redemption or satisfaction of the indebtedness represented by such Securities unless and until the same are surrendered to the Trustee for cancellation. No Securities shall be authenticated in lieu of or in exchange for any
Securities canceled as provided in this Section, except as expressly permitted by this Indenture. Canceled Securities and coupons held by the Trustee shall be destroyed by the Trustee and, if required in writing by the Company, the Trustee shall
deliver a certificate of such destruction to the Company, unless by a Company Order the Company directs their return to it. 
 SECTION 310
Computation Of Interest. 
 Except as otherwise specified as contemplated by Section 301 with respect to Securities
of any series, interest on the Securities of each series shall be computed on the basis of a 360-day year consisting of twelve 30-day months. 
 SECTION 311 Cusip Numbers. 
 The Company in issuing the Securities may use “CUSIP” numbers (if
then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices of redemption or other related material as a convenience to Holders; provided that any such notice or other related material may state that no
representation is made as to the correctness of such numbers either as printed on the Securities or as contained in any notice of redemption or other related material and that reliance may be placed only on the other identification numbers printed
on the Securities, and any such redemption shall not be affected by any defect in or omission of such numbers. 
  

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 ARTICLE FOUR 
 SATISFACTION AND DISCHARGE 
 SECTION 401 Satisfaction And
Discharge Of Indenture. 
 This Indenture shall upon Company Request cease to be of further effect with respect to any series
of Securities specified in such Company Request (except as to any surviving rights of registration of transfer or exchange of Securities of such series herein expressly provided for and any right to receive Additional Amounts, as provided in
Section 1011), and the Trustee, upon receipt of a Company Order, and at the expense of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture as to such series, and any coupons appertaining
thereto, when 
 (1) either 
 (A) all Securities of such series theretofore authenticated and delivered and all coupons, if any, appertaining thereto
(other than (i) coupons appertaining to Bearer Securities surrendered for exchange for Registered Securities and maturing after such exchange, whose surrender is not required or has been waived as provided in Section 305,
(ii) Securities and coupons of such series which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 306, (iii) coupons appertaining to Securities called for redemption and maturing after
the relevant Redemption Date, whose surrender has been waived as provided in Section 1106, and (iv) Securities and coupons of such series for whose payment money has theretofore been deposited in trust or segregated and held in trust by
the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 1003) have been delivered to the Trustee for cancellation; or 
 (B) all Securities of such series and, in the case of (i) or (ii) below, any coupons appertaining thereto not
theretofore delivered to the Trustee for cancellation 
 (i) have become due and payable, or 
 (ii) will become due and payable at their Stated Maturity within one year, or 
 (iii) if redeemable at the option of the Company, are to be called for redemption within one year under arrangements
satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company, and the Company, in the case of (i), (ii) or (iii) above, has irrevocably deposited or caused to be
deposited with the Trustee as trust funds in trust for the purpose an amount in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable, sufficient to pay and
discharge the entire indebtedness on such Securities and such coupons not theretofore delivered to the Trustee for cancellation, for principal (and premium or Make-Whole Amount, if any) and interest, and any Additional Amounts with respect thereto,
to the date of such deposit (in the case of Securities which have become due and payable) or the Stated Maturity or Redemption Date, as the case may be; 
 (2) The Company has paid or caused to be paid all other sums payable hereunder by the Company; and 
  

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 (3) The Company has delivered to the Trustee an Officers’ Certificate
and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture as to such series have been complied with. 
 Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee and any predecessor Trustee
under Section 606, the obligations of the Company to any Authenticating Agent under Section 611 and, if money shall have been deposited with and held by the Trustee pursuant to subclause (B) of clause (1) of this Section, the
obligations of the Trustee under Section 402 and the last paragraph of Section 1003, shall survive. 
 In the event
that there are Securities of two or more series outstanding hereunder, the Trustee shall be required to execute an instrument acknowledging satisfaction and discharge of this Indenture only if requested in writing to do so with respect to Securities
of a particular series as to which it is Trustee and if the other conditions thereto are met. 
 SECTION 402 Application Of Trust
Funds. 
 Subject to the provisions of the last paragraph of Section 1003, all money deposited with the Trustee pursuant
to Section 401 shall be held in trust and applied by it, in accordance with the provisions of the Securities, the coupons and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own
Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium or Make-Whole Amount, if any), and any interest and Additional Amounts for whose payment such money has been deposited with or received by the
Trustee, but such money need not be segregated from other funds except to the extent required by law. 
 ARTICLE FIVE 

 REMEDIES 
 SECTION 501 Events Of Default. 
 Subject to any modifications, additions or deletions relating to any
series of Securities as contemplated pursuant to Section 301, “Event of Default,” wherever used herein with respect to any particular series of Securities, means any one of the following events (whatever the reason for such Event of
Default and whether or not it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body): 
 (1) default in the payment of any interest upon or any Additional Amounts payable in respect of any Security of or within
that series or of any coupon appertaining thereto, when such interest, Additional Amounts or coupon becomes due and payable, and continuance of such default for a period of 30 days; or 
 (2) default in the payment of the principal of (or premium or Make-Whole Amount, if any, on) any Security of that series when
it becomes due and payable at its Maturity; or 
 (3) default in the deposit of any sinking fund payment, when
and as due by the terms of any Security of that series; or 
 (4) default in the performance, or breach, of any
covenant, agreement or warranty of the Company in this Indenture with respect to any Security of that series (other than (i) a covenant, agreement or warranty included in this Indenture solely for the benefit of a series of Securities other
than

  

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such series or (ii) a covenant, agreement or warranty a default in whose performance or whose breach is elsewhere in this Section specifically dealt with), and continuance of such default or
breach for a period of 60 days after there has been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Securities of that
series a written notice specifying such default or breach and requiring it to be remedied and stating that such notice is a “Notice of Default” hereunder; or 
 (5) default under a bond, debenture, note, mortgage, indenture or instrument under which there may be issued or by which
there may be secured or evidenced any indebtedness for money borrowed by the Company (or by any Subsidiary, the repayment of which the Company has guaranteed or for which the Company is directly responsible or liable as obligor or guarantor), having
a principal amount outstanding in excess of $10,000,000 (other than indebtedness which is non-recourse to the Company or the Subsidiaries), whether such indebtedness now exists or shall hereafter be created, which default shall have resulted in such
indebtedness being declared due and payable prior to the date on which it would otherwise have become due and payable, without such indebtedness having been discharged, or such acceleration having been rescinded or annulled, within a period of 30
days after there shall have been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Securities of that series a written notice
specifying such default and requiring the Company to cause such indebtedness to be discharged or cause such acceleration to be rescinded or annulled and stating that such notice is a “Notice of Default” hereunder; or 
 (6) the Company or any Significant Subsidiary pursuant to or within the meaning of any Bankruptcy Law: 
 (A) commences a voluntary case; or 
 (B) consents to the entry of an order for relief against it in an involuntary case; or 
 (C) consents to the appointment of a Custodian of it or for all or substantially all of its property; or 
 (D) makes a general assignment for the benefit of its creditors; or 
 (E) makes an admission in writing of its inability to pay its debts generally as they become due; or 
 (F) takes corporate action in furtherance of any such action; or 
 (7) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that: 
 (A) is for relief against the Company or any Significant Subsidiary in an involuntary case; or 
 (B) appoints a Custodian of the Company or any Significant Subsidiary or for all or substantially all of either of its
property, or 
 (C) orders the liquidation of the Company or any Significant Subsidiary, and the order or decree
remains unstayed and in effect for 90 days; or 
  

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 (D) adjudges the Company or any Significant Subsidiary bankrupt or
insolvent, or approves as properly filed a petition seeking reorganization, arrangement, and adjustment or composition of or in respect of the Company or any Significant Subsidiary; or 
 (8) any other Event of Default provided with respect to Securities of that series. 
 As used in this Section 501, the term “Bankruptcy Law” means Title 11, U.S. Code or any similar Federal or state bankruptcy,
insolvency, reorganization or other law for the relief of debtors and the term “Custodian” means any receiver, trustee, assignee, liquidator or other similar official under any Bankruptcy Law. 
 SECTION 502 Acceleration Of Maturity; Rescission And Annulment. 
 If an Event of Default with respect to Securities of any series at the time Outstanding occurs and is continuing, then and in every such case the Trustee or the Holders of not less than 25% in aggregate
principal amount of the Outstanding Securities of each such affected series (voting as a single class) may declare the principal and premium, if any, (or, if any Securities are Original Issue Discount Securities or Indexed Securities, such portion
of the principal as may be specified in the terms thereof) of, and the Make-Whole Amount, if any, on, all the Securities of that series to be due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by the
Holders), and upon any such declaration such principal (and premium, if any,) or specified portion thereof shall become immediately due and payable. 
 At any time after such a declaration of acceleration with respect to Securities of any series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as
hereinafter in this Article provided, the Holders of a majority in principal amount of the Outstanding Securities of that series, by written notice to the Company and the Trustee, may rescind and annul such declaration and its consequences if:

 (1) the Company has paid or deposited with the Trustee a sum sufficient to pay in the currency, currency unit
or composite currency in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series): 
 (A) all overdue installments of interest on and any Additional Amounts payable in respect of all Outstanding Securities of
that series and any related coupons; 
 (B) the principal of (and premium or Make-Whole Amount, if any, on) any
Outstanding Securities of that series which have become due otherwise than by such declaration of acceleration and interest thereon at the rate or rates borne by or provided for in such Securities; 
 (C) to the extent that payment of such interest is lawful, interest upon overdue installments of interest and any Additional
Amounts at the rate or rates borne by or provided for in such Securities; and 
 (D) all sums paid or advanced by
the Trustee hereunder and the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel; and 
 (2) all Events of Default with respect to Securities of that series, other than the nonpayment of the principal of (or premium or Make-Whole Amount, if any) or interest on Securities of that series which
have become due solely by such declaration of acceleration, have been cured or waived as provided in Section 513. 
  

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 No such rescission shall affect any subsequent default or impair any right consequent
thereon. 
 SECTION 503 Collection Of Indebtedness And Suits For Enforcement By Trustee. 
 The Company covenants that if: 
 (1) default is made in the payment of any installment of interest or Additional Amounts, if any, on any Security of any series and any related coupon when such interest or Additional Amount becomes due
and payable and such default continues for a period of 30 days, or 
 (2) default is made in the payment of the
principal of (or premium or Make-Whole Amount, if any, on) any Security of any series at its Maturity, 
 then the Company will, upon demand of
the Trustee, pay to the Trustee, for the benefit of the Holders of such Securities of such series and coupons, the whole amount then due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest
and Additional Amounts, with interest upon any overdue principal (and premium or Make-Whole Amount, if any) and, to the extent that payment of such interest shall be legally enforceable, upon any overdue installments of interest or Additional
Amounts, if any, at the rate or rates borne by or provided for in such Securities, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel. 
 If the Company fails to pay such amounts forthwith upon
such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, and may prosecute such proceeding to judgment or final decree, and may enforce the
same against the Company or any other obligor upon such Securities of such series and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities of
such series, wherever situated. 
 If an Event of Default with respect to Securities of any series occurs and is continuing, the
Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of Securities of such series and any related coupons by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect
and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy. 
 SECTION 504 Trustee May File Proofs Of Claim. 
 In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial proceeding relative to the Company or any other
obligor upon the Securities or the property of the Company or of such other obligor or their creditors, the Trustee (irrespective of whether the principal of the Securities of any series shall then be due and payable as therein expressed or by
declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for the payment of overdue principal, premium or Make-Whole Amount, if any, or interest) shall be entitled and empowered, by intervention in
such proceeding or otherwise to take any and all actions authorized under the TIA in order to have any claims of the Holders and the Trustee allowed in any such proceeding and: 
 (i) to file and prove a claim for the whole amount, or such lesser amount as may be provided for in the Securities of such
series, of principal (and premium or Make-Whole

  

 35 

 
Amount, if any) and interest and Additional Amounts, if any, owing and unpaid in respect of the Securities and to file such other papers or documents as may be necessary or advisable in order to
have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceeding, and 
 (ii) to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the
same; 
 and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or other similar official) in any such judicial proceeding is
hereby authorized by each Holder of Securities of such series and coupons to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount
due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee and any predecessor Trustee, their agents and counsel, and any other amounts due the Trustee or any predecessor Trustee under Section 606.

 Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of
any Holder of a Security or coupon any plan of reorganization, arrangement, adjustment or composition affecting the Securities or coupons or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder
of a Security or coupon in any such proceeding; provided, however, that the Trustee may, only on behalf of the Holders, vote for the election of a trustee in bankruptcy or similar official and be a member of a creditors’ committee or other
similar committee. 
 SECTION 505 Trustee May Enforce Claims Without Possession Of Securities Or Coupons. 
 All rights of action and claims under this Indenture or any of the Securities or coupons may be prosecuted and enforced by the Trustee
without the possession of any of the Securities or coupons or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Securities and coupons in
respect of which such judgment has been recovered. 
 SECTION 506 Application Of Money Collected. 
 Any money collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the
Trustee and, in case of the distribution of such money on account of principal (or premium or Make-Whole Amount, if any) or interest and any Additional Amounts, upon presentation of the Securities or coupons, or both, as the case may be, and the
notation thereon of the payment if only partially paid and upon surrender thereof if fully paid: 
 FIRST: To the
payment of all amounts due the Trustee and any predecessor Trustee under Section 606, 
 SECOND: To the
payment of the amounts then due and unpaid upon the Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest and any Additional Amounts payable, in respect of which or for the benefit of which such money has been
collected, ratably, without preference or priority of any kind, according to the aggregate amounts due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any), interest and Additional Amounts,
respectively, and 
  

 36 

 THIRD: To the payment of the remainder, if any, to the Company. 

SECTION 507 Limitation On Suits. 
 No
Holder of any Security of any series or any related coupon shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver or trustee, or for any other remedy hereunder,
unless: 
 (1) such Holder has previously given written notice to the Trustee of a continuing Event of Default
with respect to the Securities of that series; 
 (2) the Holders of not less than 25% in principal amount of the
Outstanding Securities of that series shall have made written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder; 
 (3) such Holder or Holders have offered to the Trustee indemnity satisfactory to it against the costs, expenses and
liabilities to be incurred in compliance with such request; 
 (4) the Trustee for 60 days after its receipt of
such notice, request and offer of indemnity has failed to institute any such proceeding; and 
 (5) no direction
inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority in principal amount of the Outstanding Securities of that series; 
 it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any
provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the
manner herein provided and for the equal and ratable benefit of all such Holders. 
 SECTION 508 Unconditional Right Of Holders To Receive
Principal, Premium Or Make-Whole Amount, If Any, Interest And Additional Amounts. 
 Notwithstanding any other provision in
this Indenture, the Holder of any Security or coupon shall have the right which is absolute and unconditional to receive payment of the principal of (and premium or Make-Whole Amount, if any) and (subject to Sections 305 and 307) interest on, and
any Additional Amounts in respect of, such Security or payment of such coupon on the respective due dates expressed in such Security or coupon (or, in the case of redemption, on the Redemption Date), to convert or exchange such Securities in
accordance with Article Sixteen and to institute suit for the enforcement of any such payment, and such rights shall not be impaired without the consent of such Holder. 
  

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 SECTION 509 Restoration Of Rights And Remedies. 
 If the Trustee or any Holder of a Security or coupon has instituted any proceeding to enforce any right or remedy under this Indenture and
such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case the Company, the Trustee and the Holders of Securities and coupons shall, subject to
any determination in such proceeding, be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no such proceeding had been instituted.

 SECTION 510 Rights And Remedies Cumulative. 
 Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons in the last paragraph of Section 306, no right or remedy herein
conferred upon or reserved to the Trustee or to the Holders of Securities or coupons is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every
other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other
appropriate right or remedy. 
 SECTION 511 Delay Or Omission Not Waiver. 
 No delay or omission of the Trustee or of any Holder of any Security or coupon to exercise any right or remedy accruing upon any Event of
Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or any acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to
time, and as often as may be deemed expedient, by the Trustee or by the Holders of Securities or coupons, as the case may be. 
 SECTION 512
Control By Holders Of Securities. 
 The Holders of not less than a majority in principal amount of the Outstanding
Securities of any series shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any trust or power conferred on the Trustee with respect to the Securities of such
series, provided that 
 (1) such direction shall not be in conflict with any rule of law or with this Indenture,

 (2) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such
direction, and 
 (3) the Trustee need not take any action which might involve it in personal liability or be
unduly prejudicial to the Holders of Securities of such series not joining therein (but the Trustee shall have no obligation as to the determination of such undue prejudice). 
 SECTION 513 Waiver Of Past Defaults. 
 The Holders of not less than a
majority in principal amount of the Outstanding Securities of any series may on behalf of the Holders of all the Securities of such series and any related coupons consent to the waiver of any past default hereunder with respect to such series and
its consequences, except a default 
  

 38 

 (1) in the payment of the principal of (or premium or Make-Whole Amount, if
any) or interest including Additional Amounts payable in respect of any Security of such series or any related coupons, or 
 (2) in respect of a covenant or provision hereof which under Article Nine cannot be modified or amended without the consent of the Holder of each Outstanding Security of such series affected. 

Upon any such waiver, such default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured,
for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other default or Event of Default or impair any right consequent thereon. 
 SECTION 514 Waiver Of Stay, Usury Or Extension Laws. 
 The Company covenants
(to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any usury, stay or extension law wherever enacted, now or at any time hereafter in
force, which may affect the covenants or the performance of this Indenture; and the Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not hinder, delay or
impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted. 
 SECTION 515 Undertaking For Costs. 
 All parties to this Indenture agree,
and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee
for any action taken or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’
fees, against any party litigant in such suit having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section shall not apply to any suit instituted by the Trustee, to any suit
instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Outstanding Securities, or to any suit instituted by any Holder for the enforcement of the payment of the principal of (or premium or
Make-Whole Amount, if any) or interest on or Additional Amounts payable with respect to any Security on or after the respective Stated Maturities expressed in such Security (or in the case of redemption, on or after the Redemption Date) or to
enforce the right to convert or exchange any Security in accordance with Article Sixteen. 
 ARTICLE SIX 
 THE TRUSTEE 
 SECTION 601
Notice Of Defaults. 
 Within 90 days after the occurrence of any default hereunder with respect to the Securities of any
series, the Trustee shall transmit in the manner and to the extent provided in TIA Section 313(c), notice of such default hereunder actually known to a Responsible Officer of the Trustee, unless such default shall have been cured or waived;
provided, however, that, except in the case of a default in the payment of the principal of (or premium or Make-Whole Amount, if any) or interest on or any Additional Amounts with respect to any Security of such series, or in the payment of any
sinking fund installment with respect to

  

 39 

 
the Securities of such series, the Trustee shall be protected in withholding such notice if and so long as Responsible Officers of the Trustee in good faith determine that the withholding of such
notice is in the interests of the Holders of the Securities and coupons of such series; and provided further that in the case of any default or breach of the character specified in Section 501(4) with respect to the Securities and coupons of
such series, no such notice to Holders shall be given until at least 60 days after the occurrence thereof. For the purpose of this Section, the term “default” means any event which is, or after notice or lapse of time or both would become,
an Event of Default with respect to the Securities of such series. 
 SECTION 602 Certain Duties, Responsibilities And Rights Of Trustee.

 (a) The Trustee’s duties and responsibilities under this Indenture shall be governed by the Trust Indenture Act.

 (b) Subject to the provisions of TIA Section 315(a) through 315(d): 
 (1) except during the continuance of an Event of Default, the Trustee shall perform only such duties as are expressly
undertaken by it to perform under this Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee; 
 (2) the Trustee may conclusively rely and shall be fully protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction,
consent, order, bond, debenture, note, coupon or other paper or document believed by it to be genuine and to have been signed or presented by the proper party or parties; 
 (3) any request or direction of the Company mentioned herein shall be sufficiently evidenced by a Company Request or Company
Order (other than delivery of any Security, together with any coupons appertaining thereto, to the Trustee for authentication and delivery pursuant to Section 303 which shall be sufficiently evidenced as provided therein) and any resolution of
the Board of Directors may be sufficiently evidenced by a Board Resolution; 
 (4) whenever in the administration
of this Indenture the Trustee shall deem it desirable that a matter be proved or established prior to taking, suffering or omitting any action hereunder, the Trustee (unless other evidence be herein specifically prescribed) may, in the absence of
bad faith on its part, rely upon an Officers’ Certificate; 
 (5) the Trustee may consult with counsel and
as a condition to the taking, suffering or omission of any action hereunder may demand an Opinion of Counsel, and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action
taken, suffered or omitted by it hereunder in good faith and in reliance thereon; 
 (6) the Trustee shall be
under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders of Securities of any series or any related coupons pursuant to this Indenture, unless such Holders shall
have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction; 
 (7) the Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate,
statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, coupon or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or
matters as it may see fit, and,

  

 40 

 
if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company, personally or by agent or attorney;

 (8) the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either
directly or by or through agents, attorneys, custodians or nominees and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent, attorney, custodian or nominee appointed with due care by it hereunder;

 (9) if the Trustee is acting as Paying Agent or Transfer Agent and Registrar hereunder, the rights,
indemnities and protections afforded to the Trustee pursuant to this Article VI shall also be afforded to such Paying Agent or Transfer Agent and Registrar; 
 (10) the Trustee shall not be deemed to have knowledge of any Event of Default unless the Trustee shall have received written
notice, or a Responsible Officer charged with the administration of this Indenture shall have actual knowledge of such Event of Default; 
 (11) the Trustee shall not be liable for any action taken, suffered or omitted by it in good faith and reasonably believed by it to be authorized or within the discretion or rights or powers conferred
upon it by this Indenture. The Trustee shall not be required to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it shall
have reasonable grounds for believing that repayment of such funds or indemnity satisfactory to it against such risk or liability is not reasonably assured to it; 
 (12) the Trustee shall not be liable for special, indirect or consequential loss or damage of any kind whatsoever (including
but not limited to lost profits), even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action; and 
 (13) the Trustee shall not be responsible or liable for any failure or delay in the performance of its obligations under this Indenture arising out of or caused by, directly or indirectly, forces beyond
its control, including without limitation strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities,
communications or computer (software or hardware) services. 
 SECTION 603 Not Responsible For Recitals Or Issuance Of Securities.

 The recitals contained herein and in the Securities, except the Trustee’s certificate of authentication, and in any
coupons shall be taken as the statements of the Company, and neither the Trustee nor any Authenticating Agent assumes any responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this Indenture
or of the Securities or coupons, except that the Trustee represents that it is duly authorized to execute and deliver this Indenture, authenticate the Securities and perform its obligations hereunder. Neither the Trustee nor any Authenticating Agent
shall be accountable for the use or application by the Company of Securities or the proceeds thereof. 
 SECTION 604 May Hold Securities.

 The Trustee, any Paying Agent, Security Registrar, Authenticating Agent or any other agent of the Company, in its individual
or any other capacity, may become the owner or pledgee of Securities and coupons and, subject to Section 613 and TIA Sections 310(b) and 311, may otherwise deal with the Company with the same rights it would have if it were not Trustee, Paying
Agent, Security Registrar, Authenticating Agent or such other agent. 
  

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 SECTION 605 Money Held In Trust. 
 Money held by the Trustee in trust hereunder need not be segregated from other funds except to the extent required by law. The Trustee shall
be under no liability for interest on, or investment of, any money received by it hereunder except as otherwise agreed in writing with the Company. 
 SECTION 606 Compensation And Reimbursement. 
 The Company agrees: 
 (1) to pay to the Trustee from time to time reasonable compensation for all services rendered by it hereunder, including
extraordinary services rendered in connection with or during the continuation of a default hereunder (which compensation shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust); 
 (2) to reimburse each of the Trustee and any predecessor Trustee upon its request for all reasonable expenses, disbursements
and advances incurred or made by it in accordance with any provision of this Indenture (including the reasonable compensation and the expenses and disbursements of its agents and counsel), except to the extent any such expense, disbursement or
advance may be attributable to its gross negligence or bad faith; and 
 (3) to indemnify each of the Trustee and
any predecessor Trustee and each of their respective directors, officers, agents and employees for, and to hold each of them harmless against, any loss, liability or expense, arising out of or in connection with the acceptance or administration of
the trust or trusts or the performance of its duties hereunder, including the costs and expenses of defending itself against any claim or liability in connection with the exercise or performance of any of its powers or duties hereunder except to the
extent any such loss, liability or expense may be attributable to its own gross negligence or bad faith. 
 As security for the
performance of the obligations of the Company under this Section, the Trustee shall have a lien prior to the Securities upon all property and funds held or collected by the Trustee as such, except funds held in trust for the payment of principal of
(or premium or Make-Whole Amount, if any) or interest on particular Securities or any coupons. 
 Without prejudice to any other
rights available to the Trustee under applicable law, when the Trustee incurs expenses or renders services in connection with an Event of Default described in Section 501(6) and (7), such expenses (including the fees and expenses of its
counsel) and the compensation for such services are intended to constitute expenses of administration under any Bankruptcy Law. 
 The provisions of this Section shall survive the termination of this Indenture or the resignation or removal of the Trustee. 
 SECTION
607 Corporate Trustee Required; Eligibility. 
 There shall at all times be a Trustee hereunder which shall be eligible to
act as Trustee under TIA Section 310(a)(1) and shall have a combined capital and surplus of at least $50,000,000. If such Trustee or Person publishes reports of condition at least annually, pursuant to law or the requirements of Federal, State,
Territorial or District of Columbia supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Trustee or Person shall be deemed to be its combined capital and surplus as set forth in its most
recent report of condition so published. If at any time the

  

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Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article.

 SECTION 608 Resignation And Removal; Appointment Of Successor. 
 (a) No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to this Article shall become effective until
the acceptance of appointment by the successor Trustee in accordance with the applicable requirements of Section 609. 
 (b) The Trustee may resign at any time with respect to the Securities of one or more series by giving written notice thereof to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee
within 30 days after the giving of such notice of resignation, the resigning Trustee may petition any court of competent jurisdiction for the appointment of a successor Trustee. 
 (c) The Trustee may be removed at any time with respect to the Securities of any series by Act of the Holders of a majority in principal
amount of the Outstanding Securities of such series delivered to the Trustee and to the Company. 
 (d) If at any time:

 (1) the Trustee shall fail to comply with the provisions of Section 613 or TIA Section 310(b) after
written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a Security for at least six months, or 
 (2) the Trustee shall cease to be eligible under Section 607 and shall fail to resign after written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a
Security for at least six months, or 
 (3) the Trustee shall become incapable of acting or shall be adjudged a
bankrupt or insolvent or a receiver of the Trustee or of its property shall be appointed or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation, conservation or liquidation,

 then, in any such case, (i) the Company by or pursuant to a Board Resolution may remove the Trustee and appoint a successor Trustee with
respect to all Securities, or (ii) subject to TIA Section 315(e), any Holder of a Security who has been a bona fide Holder of a Security for at least six months may, on behalf of himself and all others similarly situated, petition any
court of competent jurisdiction for the removal of the Trustee with respect to all Securities and the appointment of a successor Trustee or Trustees. 
 (e) If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any cause with respect to the Securities of one or more series, the
Company, by or pursuant to a Board Resolution, shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or those series (it being understood that any such successor Trustee may be appointed with respect to the
Securities of one or more or all of such series and that at any time there shall be only one Trustee with respect to the Securities of any particular series) and shall comply with the requirements of Section 609. 
 If, within one year after such resignation, removal or incapacity, or the occurrence of such vacancy, a successor Trustee with respect to
the Securities of any series shall be appointed by Act of the Holders of a majority in principal amount of the Outstanding Securities of such series delivered to the

  

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Company and the retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such appointment, become the successor Trustee with respect to the Securities of such
series and to that extent supersede the successor Trustee appointed by the Company. If no successor Trustee with respect to the Securities of any series shall have been so appointed by the Company or the Holders of Securities and accepted
appointment in the manner hereinafter provided, any Holder of a Security who has been a bona fide Holder of a Security of such series for at least six months may, on behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect to Securities of such series. 
 (f) The Company
shall give notice of each resignation and each removal of the Trustee with respect to the Securities of any series and each appointment of a successor Trustee with respect to the Securities of any series to the Holders of Securities of such series
in the manner provided for notices to the Holders of Securities in Section 106. Each notice shall include the name of the successor Trustee with respect to the Securities of such series and the address of its Corporate Trust Office. 

SECTION 609 Acceptance Of Appointment By Successor. 
 (a) In case of the appointment hereunder of a successor Trustee with respect to all Securities, every such successor Trustee shall execute, acknowledge and deliver to the Company and to the retiring
Trustee an instrument accepting such appointment, and thereupon the resignation or removal of the retiring Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on request of the Company or the successor Trustee, such retiring Trustee shall, upon payment of its charges, execute and deliver an instrument transferring to such successor Trustee
all the rights, powers and trusts of the retiring Trustee, and shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder, subject nevertheless to its claim, if any, provided for
in Section 606. 
 (b) In case of the appointment hereunder of a successor Trustee with respect to the Securities of one or
more (but not all) series, the Company, the retiring Trustee and each successor Trustee with respect to the Securities of one or more series shall execute and deliver an indenture supplemental hereto, pursuant to Article Nine hereof, wherein each
successor Trustee shall accept such appointment and which (1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts and duties of the
retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates, (2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such provisions as
shall be deemed necessary or desirable to confirm that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series as to which the retiring Trustee is not retiring shall continue to be
vested in the retiring Trustee, and (3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, it being understood
that nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts hereunder separate and apart from any trust or trusts hereunder
administered by any other such Trustee; and upon the execution and delivery of such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee
relates; but, on request of the Company or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder with respect to the Securities
of that or those series to which the appointment of such successor Trustee relates. 
  

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 (c) Upon request of any such successor Trustee, the Company shall execute any and all
instruments for more fully and certainly vesting in and confirming to such successor Trustee all such rights, powers and trusts referred to in paragraph (a) or (b) of this Section, as the case may be. 
 (d) No successor Trustee shall accept its appointment unless at the time of such acceptance such successor Trustee shall be qualified and
eligible under this Article. 
 SECTION 610 Merger, Conversion, Consolidation Or Succession To Business. 
 Any corporation into which the Trustee may be merged or converted or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Securities or coupons shall have been authenticated, but
not delivered, by the Trustee then in office, any successor by merger, conversion or consolidation to such authenticating Trustee may adopt such authentication and deliver the Securities or coupons so authenticated with the same effect as if such
successor Trustee had itself authenticated such Securities or coupons. In case any Securities or coupons shall not have been authenticated by such predecessor Trustee, any such successor Trustee may authenticate and deliver such Securities or
coupons, in either its own name or that of its predecessor Trustee, with the full force and effect which this Indenture provides for the certificate of authentication of the Trustee. 
 SECTION 611 Appointment Of Authenticating Agent. 
 At any time when any of
the Securities remain Outstanding, the Trustee may appoint an Authenticating Agent or Agents with respect to one or more series of Securities which shall be authorized to act on behalf of the Trustee to authenticate Securities of such series issued
upon exchange, registration of transfer or partial redemption or repayment thereof or pursuant to Section 306, and Securities so authenticated shall be entitled to the benefits of this Indenture and shall be valid and obligatory for all
purposes as if authenticated by the Trustee hereunder. Any such appointment shall be evidenced by an instrument in writing signed by a Responsible Officer of the Trustee, a copy of which instrument shall be promptly furnished to the Company.
Wherever reference is made in this Indenture to the authentication and delivery of Securities by the Trustee or the Trustee’s certificate of authentication, such reference shall be deemed to include authentication and delivery on behalf of the
Trustee by an Authenticating Agent and a certificate of authentication executed on behalf of the Trustee by an Authenticating Agent. Each Authenticating Agent shall be reasonably acceptable to the Company and, except as may otherwise be provided
pursuant to Section 301, shall at all times be a bank or trust company or corporation organized and doing business and in good standing under the laws of the United States of America or of any State or the District of Columbia, authorized under
such laws to act as Authenticating Agent, having a combined capital and surplus of not less than $50,000,000 and subject to supervision or examination by Federal or State authorities. If such Authenticating Agent publishes reports of condition at
least annually, pursuant to law or the requirements of the aforesaid supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Authenticating Agent shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published. In case at any time an Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, such Authenticating Agent shall resign
immediately in the manner and with the effect specified in this Section. 
 Any corporation into which an Authenticating Agent
may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to

  

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which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate agency or corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible under this Section, without the execution or filing of any paper or further act on the part of the Trustee or the Authenticating Agent. 
 An Authenticating Agent for any series of Securities may at any time resign by giving written notice of resignation to the Trustee for such
series and to the Company. The Trustee for any series of Securities may at any time terminate the agency of an Authenticating Agent by giving written notice of termination to such Authenticating Agent and to the Company. Upon receiving such a notice
of resignation or upon such a termination, or in case at any time such Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, the Trustee for such series may appoint a successor Authenticating Agent which
shall be acceptable to the Company and shall give notice of such appointment to all Holders of Securities of or within the series with respect to which such Authenticating Agent will serve in the manner set forth in Section 106. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become vested with all the rights, powers and duties of its predecessor hereunder, with like effect as if originally named as an Authenticating Agent herein. No successor
Authenticating Agent shall be appointed unless eligible under the provisions of this Section. 
 The Company agrees to pay to
each Authenticating Agent from time to time reasonable compensation including reimbursement of its reasonable expenses for its services under this Section. 
 If an appointment with respect to one or more series is made pursuant to this Section, the Securities of such series may have endorsed thereon, in addition to or in lieu of the Trustee’s certificate
of authentication, an alternate certificate of authentication substantially in the following form: 
 This is one of the
Securities of the series designated therein referred to in the within-mentioned Indenture. 
  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	By:	 	_______________ as Authenticating Agent
		
	By:	 	______________________Authorized Officer

 SECTION 612 Certain Duties And Responsibilities. 
 No provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if it shall have reasonable grounds for believing that repayment of such funds or indemnity satisfactory to it against such risk or liability is not
reasonably assured to it. Whether or not therein expressly so provided, every provision of this 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. 
 SECTION 613 Conflicting Interests. 
 If the Trustee has or shall acquire a conflicting interest within the meaning of the Trust Indenture Act, the Trustee shall either eliminate such interest or resign, to the extent and in the manner
provided by, and subject to the provisions of, the Trust Indenture Act and this Indenture. To the extent permitted by such Act, the Trustee shall not be deemed to have a conflicting interest by virtue of being a trustee under

  

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this Indenture with respect to Securities of more than one series. In case an Event of Default shall occur and be continuing, the Trustee shall exercise such of its rights and powers under the
applicable Indenture and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in the conduct of his own affairs. 
 SECTION 614 Preferential Collection Of Claims Against Company. 
 If and when
the Trustee shall be or become a creditor of the Company (or any other obligor upon the Securities), the Trustee shall be subject to the provisions of the TIA regarding the collection of claims against the Company (or any such other obligor).

 ARTICLE SEVEN 
 HOLDERS’ LISTS AND REPORTS BY TRUSTEE AND COMPANY 
 SECTION 701 Disclosure Of Names
And Addresses Of Holders. 
 Every Holder of Securities or coupons, by receiving and holding the same, agrees with the
Company and the Trustee that neither the Company nor the Trustee nor any Authenticating Agent nor any Paying Agent nor any Security Registrar nor any director, officer, agent or employee of any of them shall be held accountable by reason of the
disclosure of any information as to the names and addresses of the Holders of Securities or coupons in accordance with TIA Section 312, regardless of the source from which such information was derived, and that the Trustee shall not be held
accountable by reason of mailing any material pursuant to a request made under TIA Section 312(b). 
 SECTION 702 Reports By
Trustee. 
 Within 60 days after March 15 of each year commencing with the first March 15 after the first issuance
of Securities pursuant to this Indenture, the Trustee shall transmit by mail to all Holders of Securities as provided in TIA Section 313(c) a brief report dated as of such March 15 if and to the extent required by TIA Section 313(a).

 A copy of each such report shall, at the time of such transmission to Holders, be filed by the Trustee with the Commission
and with the Company and, provided the Trustee has received written notification by the Company that any Securities are listed on any stock exchange, with each stock exchange upon which the Trustee has been so notified that such Securities are
listed. 
 SECTION 703 Reports By Company. 
 The Company will: 
 (1) file with the Trustee, within 15 days of
filing the same with the Commission, copies of annual reports, quarterly reports and other documents which the Company files with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, and the Company will promptly, upon written
request and payment of the reasonable cost of duplication and delivery, supply copies of such documents to any prospective Holder; 
 (2) file with the Trustee and the Commission, in accordance with rules and regulations prescribed from time to time by the Commission, such additional information, documents and reports with respect to
compliance by the Company with the conditions and covenants of this Indenture as may be required from time to time by such rules and regulations; and 
  

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 (3) transmit by mail to the Holders of Securities, within 30 days after the
filing thereof with the Trustee, in the manner and to the extent provided in TIA Section 313(c), such summaries of any information, documents and reports required to be filed by the Company pursuant to paragraphs (1) or (2) of this
Section as may be required by rules and regulations prescribed from time to time by the Commission. 
 SECTION 704 Company To Furnish Trustee
Names And Addresses Of Holders. 
 The Company will furnish or cause to be furnished to the Trustee: 
 (1) semi-annually, not later than 15 days after the Regular Record Date for interest for each series of Securities, a list,
in such form as the Trustee may reasonably require, of the names and addresses of the Holders of Registered Securities of such series as of such Regular Record Date, or if there is no Regular Record Date for interest for such series of Securities,
semi-annually, upon such dates as are set forth in the Board Resolution or indenture supplemental hereto authorizing such series, and 
 (2) at such other times as the Trustee may request in writing, within 30 days after the receipt by the Company of any such request, a list of similar form and content as of a date not more than 15 days
prior to the time such list is furnished, provided, however, that, so long as the Trustee is the Security Registrar, no such lists shall be required to be furnished. 
 ARTICLE EIGHT 
 CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

 SECTION 801 Consolidations And Mergers Of Company And Sales, Leases And Conveyances Permitted Subject To Certain Conditions.

 The Company may consolidate with, or sell, lease or convey all or substantially all of its assets to, or merge with or into
any other Person, provided that in any such case, (i) either the Company shall be the continuing entity, or the successor (if other than the Company) entity shall be a Person organized and existing under the laws of the United States or a State
thereof and such successor entity shall expressly assume the due and punctual payment of the principal of (and premium or Make-Whole Amount, if any) and any interest (including all Additional Amounts, if any, payable pursuant to Section 1011)
on all of the Securities, according to their tenor, the conversion or exchange rights shall be provided for in accordance with Article Sixteen, if applicable, or as otherwise specified pursuant to Section 301, and the due and punctual
performance and observance of all of the covenants and conditions of this Indenture to be performed by the Company by supplemental indenture, complying with Article Nine hereof, satisfactory to the Trustee, executed and delivered to the Trustee by
such Person; (ii) immediately after giving effect to such transaction and treating any indebtedness which becomes an obligation of the Company or any Subsidiary as a result thereof as having been incurred by the Company or such Subsidiary at
the time of such transaction, no Event of Default, and no event which, after notice or the lapse of time, or both, would become an Event of Default, shall have occurred and be continuing; and (iii) if, as a result of any such consolidation or
merger or such conveyance, transfer or lease, properties or assets of the Company would become subject to a mortgage, pledge, lien, security interest or other encumbrance which would not be permitted by this Indenture, the Company or such successor
Person, as the case may be, shall take such steps as shall be necessary effectively to secure the Securities equally and ratably with (or prior to) all indebtedness secured thereby. 
  

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 SECTION 802 Rights And Duties Of Successor Corporation. 
 In case of any such consolidation, merger, sale, lease or conveyance and upon any such assumption by the successor entity, such successor
entity shall succeed to and be substituted for the Company, with the same effect as if it had been named herein as the party of the first part, and the predecessor entity, except in the event of a lease, shall be relieved of any further obligation
under this Indenture and the Securities. Such successor entity thereupon may cause to be signed, and may issue either in its own name or in the name of the Company, any or all of the Securities issuable hereunder which theretofore shall not have
been signed by the Company and delivered to the Trustee; and, upon the order of such successor entity, instead of the Company, and subject to all the terms, conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and
shall deliver any Securities which previously shall have been signed and delivered by the officers of the Company to the Trustee for authentication, and any Securities which such successor entity thereafter shall cause to be signed and delivered to
the Trustee for that purpose. All the Securities so issued shall in all respects have the same legal rank and benefit under this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though
all of such Securities had been issued at the date of the execution hereof. 
 In case of any such consolidation, merger, sale,
lease or conveyance, such changes in phraseology and form (but not in substance) may be made in the Securities thereafter to be issued as may be appropriate. 
 SECTION 803 Officers’ Certificate And Opinion Of Counsel. 
 Any
consolidation, merger, sale, lease or conveyance permitted under Section 801 is also subject to the condition that the Trustee receive an Officers’ Certificate and an Opinion of Counsel to the effect that any such consolidation, merger,
sale, lease or conveyance, and the assumption by any successor entity, complies with the provisions of this Article and that all conditions precedent herein provided for relating to such transaction have been complied with. 
 ARTICLE NINE 
 SUPPLEMENTAL INDENTURES 
 SECTION 901 Supplemental Indentures Without Consent Of Holders. 
 Without the consent of any Holders of Securities or coupons, the Company, when authorized by or pursuant to a Board Resolution, and the
Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form reasonably satisfactory to the Trustee, for any of the following purposes: 
 (1) to evidence the succession of another Person to the Company and the assumption by any such successor of the covenants of
the Company herein and in the Securities; or 
 (2) to add to the covenants of the Company for the benefit of the
Holders of all or any series of Securities (and, if such covenants are to be for the benefit of less than all series of Securities, stating that such covenants are expressly being included solely for the benefit of such series) or to surrender any
right or power herein conferred upon the Company; or 
 (3) to add any additional Events of Default for the
benefit of the Holders of all or any series of Securities (and if such Events of Default are to be for the benefit of less than all series of Securities, stating that such Events of Default are expressly being included solely for the benefit of such

  

 49 

 
series); provided, however, that in respect of any such additional Events of Default such supplemental indenture may provide for a particular period of grace after default (which period may be
shorter or longer than that allowed in the case of other defaults) or may provide for an immediate enforcement upon such default or may limit the remedies available to the Trustee upon such default or may limit the right of the Holders of a majority
in aggregate principal amount of that or those series of Securities to which such additional Events of Default apply to waive such default; or 
 (4) to add to or change any of the provisions of this Indenture to provide that Bearer Securities may be registrable as to principal, to change or eliminate any restrictions on the payment of principal of
or any premium, Make-Whole Amount or Interest on Bearer Securities, to permit Bearer Securities to be issued in exchange for Registered Securities, to permit Bearer Securities to be issued in exchange for Bearer Securities of other authorized
denominations or to permit or facilitate the issuance of Securities in uncertificated form, provided that any such action shall not adversely affect the interests of the Holders of Securities of any series or any related coupons in any material
respect; or 
 (5) to add to, change or eliminate any of the provisions of this Indenture in respect of any
series of Securities, provided that any such addition, change or elimination shall (i) neither (A) apply to any Security of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such
provision, nor (B) modify the rights of the Holder of any such Security with respect to such provision; or (ii) become effective only when there is no Security Outstanding; or 
 (6) to secure the Securities; or 
 (7) to establish the form or terms of Securities of any series and any related coupons as permitted by Sections 201 and 301,
including the provisions and procedures relating to Securities convertible into or exchangeable for other securities or property of the Company; or 
 (8) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or more series and to add to or change any of the provisions of this
Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee; or 
 (9) to make provision with respect to the conversion or exchange rights of Holders pursuant to the requirements of Article Sixteen, including providing for the conversion or exchange of the securities
into any security or property of the Company; or 
 (10) to cure any ambiguity, to correct or supplement any
provision herein which may be defective or inconsistent with any other provision herein, or to make any other provisions with respect to matters or questions arising under this Indenture which shall not be inconsistent with the provisions of this
Indenture or to make any other changes, provided that in each case, such provisions shall not adversely affect the interests of the Holders of Securities of any series or any related coupons in any material respect; or 
 (11) to close this Indenture with respect to the authentication and delivery of additional series of Securities or to
qualify, or maintain qualification of, this Indenture under the TIA; or 
 (12) to supplement any of the
provisions of this Indenture to such extent as shall be necessary to permit or facilitate the defeasance and discharge of any series of Securities pursuant to Sections 401, 1402 and 1403; provided in each case that any such action shall not
adversely affect the interests of the Holders of Securities of such series and any related coupons or any other series of Securities in any material respect. 
  

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 SECTION 902 Supplemental Indentures With Consent Of Holders. 
 With the consent of the Holders of not less than a majority in principal amount of all Outstanding Securities affected by such supplemental
indenture, by Act of said Holders delivered to the Company and the Trustee, the Company, when authorized by or pursuant to a Board Resolution, and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of modifying in any manner the rights of the Holders of Securities and any related coupons under this Indenture; provided, however, that no such
supplemental indenture shall, without the consent of the Holder of each Outstanding Security affected thereby: 
 (1) change the Stated Maturity of the principal of (or premium or Make-Whole Amount, if any, on) or any installment of principal of or interest on, any Security; or reduce the principal amount thereof or the rate or amount of interest
thereon or any Additional Amounts payable in respect thereof, or any premium or Make-Whole Amount payable upon the redemption thereof, or change any obligation of the Company to pay Additional Amounts pursuant to Section 1011 (except as
contemplated by Section 801(i) and permitted by Section 901(1)), or reduce the amount of the principal of an Original Issue Discount Security or Indexed Security or Make-Whole Amount, if any, that would be due and payable upon a
declaration of acceleration of the Maturity thereof pursuant to Section 502 or the amount thereof provable in bankruptcy pursuant to Section 504, or adversely affect any right of repayment at the option of the Holder of any Security, or
change any Place of Payment where, or the currency or currencies, currency unit or units or composite currency or currencies in which, the principal of any Security or any premium or Make-Whole Amount or any Additional Amounts payable in respect
thereof or the interest thereon is payable, or impair the right to institute suit for the enforcement of any such payment on or after the Stated Maturity thereof (or, in the case of redemption or repayment at the option of the Holder, on or after
the Redemption Date or the Repayment Date, as the case may be); or 
 (2) reduce the percentage in principal
amount of the Outstanding Securities of any series, the consent of whose Holders is required for any such supplemental indenture, or the consent of whose Holders is required for any waiver with respect to such series (or compliance with certain
provisions of this Indenture or certain defaults hereunder and their consequences) provided for in this Indenture, or reduce the requirements of Section 1504 for quorum or voting; or 
 (3) modify any of the provisions of this Section, Section 513 or Section 1012, except to increase the required
percentage to effect such action or to provide that certain other provisions of this Indenture cannot be modified or waived without the consent of the Holder of each Outstanding Security affected thereby; or 
 (4) make any change that adversely affects the right to convert or exchange any Security as provided in Article Sixteen or
pursuant to Section 301 (except as permitted by Section 901(9)) or decrease the conversion or exchange rate or increase the conversion or exchange price of any such Security. 
 It shall not be necessary for any Act of Holders under this Section to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such Act shall approve the substance thereof. 
 A supplemental indenture which changes or
eliminates any covenant or other provision of this Indenture which has expressly been included for the benefit of one or more particular series of Securities, or which modifies the rights of the Holders of Securities of such series with respect to
such covenant or

  

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other provision, shall be deemed not to affect the rights under this Indenture of the Holders of Securities of any other series. 
 SECTION 903 Execution Of Supplemental Indentures. 
 In executing, or
accepting the additional trusts created by, any supplemental indenture permitted by this Article or the modification thereby of the trusts created by this Indenture, the Trustee shall be entitled to receive, and shall be fully protected in relying
upon, an Opinion of Counsel and an Officers’ Certificate stating that the execution of such supplemental indenture is authorized or permitted by this Indenture and that all conditions precedent to the execution of such supplemental indenture
have been complied with. The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise. 
 SECTION 904 Effect Of Supplemental Indentures. 
 Upon the execution of any supplemental indenture under this Article, this Indenture shall be modified in accordance therewith, and such supplemental indenture shall form a part of this Indenture for all
purposes; and every Holder of Securities theretofore or thereafter authenticated and delivered hereunder and of any coupon appertaining thereto shall be bound thereby. 
 SECTION 905 Conformity With Trust Indenture Act. 
 Every supplemental
indenture executed pursuant to this Article shall conform to the requirements of the Trust Indenture Act as then in effect. 
 SECTION 906
Reference In Securities To Supplement Indentures. 
 Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall if required by the Trustee, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Company shall so
determine, new Securities of any series so modified as to conform, in the opinion of the Trustee and the Company, to any such supplemental indenture may be prepared and executed by the Company and authenticated and delivered by the Trustee in
exchange for Outstanding Securities of such series. 
 SECTION 907 Notice Of Supplemental Indentures. 
 Promptly after the execution by the Company and the Trustee of any supplemental indenture pursuant to the provisions of Section 902, the
Company shall give notice thereof to the Holders of each Outstanding Security affected, in the manner provided for in Section 106, setting forth in general terms the substance of such supplemental indenture. 
 ARTICLE TEN 
 COVENANTS 
 SECTION 1001 Payment Of Principal, Premium Or Make-Whole Amount, If Any, Interest And Additional Amounts.

 The Company covenants and agrees for the benefit of the Holders of each series of Securities that it will duly and punctually
pay the principal of (and premium or Make-Whole Amount, if any) and interest on and any Additional Amounts payable in respect of the Securities of that series in accordance with the terms of such series of Securities, any coupons appertaining
thereto and this Indenture. Unless

  

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otherwise specified as contemplated by Section 301 with respect to any series of Securities, any interest due on and any Additional Amounts payable in respect of Bearer Securities on or
before Maturity, other than Additional Amounts, if any, payable as provided in Section 1011 in respect of principal of (or premium or Make-Whole Amount, if any, on) such a Security, shall be payable only upon presentation and surrender of the
several coupons for such interest installments as are evidenced thereby as they severally mature. Unless otherwise specified with respect to Securities of any series pursuant to Section 301, at the option of the Company, all payments of
principal may be paid by check to the registered Holder of the Registered Security or other person entitled thereto against surrender of such Security. 
 SECTION 1002 Maintenance Of Office Or Agency. 
 If Securities of a series
are issued as Registered Securities, the Company shall maintain in each Place of Payment for any series of Securities an office or agency where Securities of that series may be presented or surrendered for payment or conversion, where Securities of
that series may be surrendered for registration of transfer or exchange, where Securities of that series may be converted or exchanged in accordance with Article Sixteen, and where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served. If Securities of a series are issued as Bearer Securities, the Company will maintain: (A) in the City of Chattanooga, Tennessee or in the Borough of Manhattan, The City of New York, an
office or agency where any Registered Securities of that series may be presented or surrendered for payment or conversion, where any Registered Securities of that series may be surrendered for exchange, where notices and demands to or upon the
Company in respect of the Securities of that series and this Indenture may be served and where Bearer Securities of that series and related coupons may be presented or surrendered for payment or conversion in the circumstances described in the
following paragraph (and not otherwise); (B) subject to any laws or regulations applicable thereto, in a Place of Payment for that series which is located outside the United States, an office or agency where Securities of that series and
related coupons may be presented and surrendered for payment (including payment of any Additional Amounts payable on Securities of that series pursuant to Section 1011) or conversion; provided, however, that if the Securities of that series are
listed on the Luxembourg Stock Exchange, The International Stock Exchange of the United Kingdom or any other stock exchange located outside the United States and such stock exchange shall so require, the Company will maintain a Paying Agent for the
Securities of that series in Luxembourg, London or any other required city located outside the United States, as the case may be, so long as the Securities of that series are listed on such exchange; and (C) subject to any laws or regulations
applicable thereto, in each Place of Payment for that series located outside the United States an office or agency where any Securities of that series may be surrendered for registration of transfer, where Securities of that series may be
surrendered for exchange and where notices and demands to or upon the Company in respect of the Securities of that series and this Indenture may be served. The Company will give prompt written notice to the Trustee of the location, and any change in
the location, of each such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may
be made or served at the Corporate Trust Office of the Trustee, except that Bearer Securities of that series and the related coupons may be presented and surrendered for payment (including payment of any Additional Amounts payable on Bearer
Securities of that series pursuant to Section 1011) at the offices specified in the Security, in London, England, and the Company hereby appoints the same as its agent to receive such respective presentations, surrenders, notices and demands,
and the Company hereby appoints the Trustee its agent to receive all such presentations, surrenders, notices and demands. 
 Unless otherwise specified with respect to any Securities pursuant to Section 301, no payment of principal, premium, Make-Whole Amount or interest on or Additional Amounts in respect of Bearer Securities shall be made at any office or
agency of the Company in the United States or by check mailed to any address in the United States or by transfer to an account maintained with a bank located in the

  

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United States; provided, however, that, if the Securities of a series are payable in Dollars, payment of principal of and any premium and interest on any Bearer Security (including any Additional
Amounts or Make-Whole Amount payable on Securities of such series pursuant to Section 1011) shall be made at the office of the Company’s Paying Agent in the City of Chattanooga, Tennessee or the Borough of Manhattan, The City of New York,
if (but only if) payment in Dollars of the full amount of such principal, premium, interest, Additional Amounts or Make-Whole Amount, as the case may be, at all offices or agencies outside the United States maintained for the purpose by the Company
in accordance with this Indenture, is illegal or effectively precluded by exchange controls or other similar restrictions. 
 The Company may from time to time designate one or more other offices or agencies where the Securities of one or more series and related coupons, if any, may be presented or surrendered for any or all of such purposes, and may from time to
time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in accordance with the requirements set forth above for Securities of
any series for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency. 
 Unless otherwise specified with respect to any Securities pursuant to Section 301, if and so long as the Securities of any series
(i) are denominated in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long as it is required under any other provision of the Indenture, then the Company will maintain with respect to each such series of Securities,
or as so required, at least one Exchange Rate Agent. 
 SECTION 1003 Money For Securities Payments To Be Held In Trust. 
 If the Company shall at any time act as its own Paying Agent with respect to any series of any Securities and any related coupons, it will,
on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest on or Additional Amounts in respect of, any of the Securities of that series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series)
sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided, and will promptly notify the
Trustee of its action or failure so to act. 
 Whenever the Company shall have one or more Paying Agents for any series of
Securities and any related coupons, it will, on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest on or Additional Amounts in respect of, any Securities of that series, deposit with a Paying Agent a
sum (in the currency or currencies, currency unit or units or composite currency or currencies described in the preceding paragraph) sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts, so
becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal, premium, Make-Whole Amount or interest or Additional Amounts and (unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act. 
 The Company will cause each Paying Agent other than the Trustee to execute and
deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of this Section, that such Paying Agent will: 
 (1) hold all sums held by it for the payment of principal of (and premium or Make-Whole Amount, if any) or interest on
Securities or Additional Amounts in trust for the benefit of the

  

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Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided; 
 (2) give the Trustee written notice of any default by the Company (or any other obligor upon the Securities) in the making of
any such payment of principal (and premium or Make-Whole Amount, if any) or interest or Additional Amounts; and 
 (3) at any time during the continuance of any such default upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent. 
 The Company may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in trust by the Company or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Company or such
Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such sums. 
 Except as otherwise provided in the Securities of any series, any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of (and
premium or Make-Whole Amount, if any) or interest on, or any Additional Amounts in respect of, any Security of any series and remaining unclaimed for two years after such principal (and premium or Make-Whole Amount, if any), interest or Additional
Amounts has become due and payable shall be paid to the Company upon Company Request or (if then held by the Company) shall be discharged from such trust; and the Holder of such Security shall thereafter, as an unsecured general creditor, look only
to the Company for payment of such principal of (and premium or Make-Whole Amount, if any) or interest on, or any Additional Amounts in respect of, any Security, without interest thereon, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company
cause to be published once, in an Authorized Newspaper, notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such publication, any unclaimed balance of such money
then remaining will be repaid to the Company. 
 SECTION 1004 [Reserved]. 
 SECTION 1005 Existence. 
 Subject to Article Eight, the Company will do or
cause to be done all things necessary to preserve and keep in full force and effect the existence, rights (charter and statutory) and franchises of the Company and its Subsidiaries; provided, however, that the Company shall not be required to
preserve any such right or franchise if the Board of Directors shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company and its Subsidiaries as a whole and that the loss thereof is not
disadvantageous in any material respect to the Holders of Securities of any series. 
  

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 SECTION 1006 [Reserved]. 
 SECTION 1007 [Reserved]. 
 SECTION 1008 [Reserved]. 
 SECTION 1009 [Reserved]. 
 SECTION 1010
Statement As To Compliance. 
 The Company will deliver to the Trustee within 120 days after the end of each fiscal year,
a brief certificate from the principal executive officer, principal financial officer or principal accounting officer as to his or her knowledge of the Company’s compliance with all conditions and covenants under this Indenture and, in the
event of any noncompliance, specifying such noncompliance and the nature and status thereof. For purposes of this Section 1010, such compliance shall be determined without regard to any period of grace or requirement of notice under this
Indenture. 
 SECTION 1011 Additional Amounts. 
 If any Securities of a series provide for the payment of Additional Amounts, the Company will pay to the Holder of any Security of such series or any coupon appertaining thereto Additional Amounts as may
be specified as contemplated by Section 301. Whenever in this Indenture there is mentioned, in any context except in the case of Section 502(1), the payment of the principal of or any premium, Make-Whole Amount or interest on, or in
respect of, any Security of any series or payment of any related coupon or the net proceeds received on the sale or exchange of any Security of any series, such mention shall be deemed to include mention of the payment of Additional Amounts provided
by the terms of such series established pursuant to Section 301 to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof pursuant to such terms and express mention of the payment of Additional
Amounts (if applicable) in any provisions hereof shall not be construed as excluding Additional Amounts in those provisions hereof where such express mention is not made. 
 Except as otherwise specified as contemplated by Section 301, if the Securities of a series provide for the payment of Additional Amounts, at least 10 days prior to the first Interest Payment Date
with respect to that series of Securities (or if the Securities of that series will not bear interest prior to Maturity, the first day on which a payment of principal and any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or Make-Whole Amount or interest if there has been any change with respect to the matters set forth in the below-mentioned Officers’ Certificate, the Company will furnish the Trustee and the Company’s principal
Paying Agent or Paying Agents, if other than the Trustee, with an Officers’ Certificate instructing the Trustee and such Paying Agent or Paying Agents whether such payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series or any related coupons who are not United States persons without withholding for or on account of any tax, assessment or other governmental charge described in the Securities of or within
the series. If any such withholding shall be required, then such Officers’ Certificate shall specify by country the amount, if any, required to be withheld on such payments to such Holders of Securities of that series or related coupons and the
Company will pay to the Trustee or such Paying Agent the Additional Amounts, if any, required by the terms of such Securities. In the event that the Trustee or any Paying Agent, as the case may be, shall not so receive the above mentioned
certificate, then the Trustee or such Paying Agent shall be entitled (i) to assume that no such withholding or deduction is required with respect to any payment of principal or interest with respect to any Securities of a series or related
coupons until it shall have received a certificate advising otherwise and (ii) to make all payments of principal and interest with respect to the Securities of a series or related coupons without

  

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withholding or deductions until otherwise advised. The Company covenants to indemnify the Trustee and any Paying Agent and their respective officers, directors, employees and agents for, and to
hold them harmless against, any loss, liability or expense (including legal fees and expenses) reasonably incurred without gross negligence or bad faith on their part arising out of or in connection with actions taken or omitted by any of them in
reliance on any Officers’ Certificate furnished pursuant to this Section or in reliance on the Company’s not furnishing such an Officers’ Certificate. 
 SECTION 1012 Waiver Of Certain Covenants. 
 The Company may omit in any
particular instance to comply with any term, provision or condition set forth in Section 1005, and with any other term, provision or condition with respect to the Securities of any series specified in accordance with Section 301 (except
any such term, provision or condition which could not be amended without the consent of Holders of all Securities of such Series pursuant to Section 902), if before or after the time for such compliance the Holders of at least a majority in
principal amount of all outstanding Securities of such series, by Act of such Holders, either waive such compliance in such instance or generally waive compliance with such covenant or condition, but no such waiver shall extend to or affect such
covenant or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Company and the duties of the Trustee in respect of any such term, provision or condition shall remain in full
force and effect. 
 ARTICLE ELEVEN 
 REDEMPTION OF SECURITIES 
 SECTION 1101 Applicability Of Article. 
 Securities of any series which are redeemable before their Stated Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series) in accordance with this Article. 
 SECTION 1102
Election To Redeem; Notice To Trustee. 
 The election of the Company to redeem any Securities, including coupons, if any
shall be evidenced by or pursuant to a Board Resolution. In case of any redemption at the election of the Company, the Company shall, at least 45 days prior to the giving of the notice of redemption in Section 1104 (unless a shorter notice
shall be satisfactory to the Trustee), notify the Trustee, in writing, of such Redemption Date, Redemption Price and of the principal amount of Securities of the series to be redeemed. In the case of any redemption of Securities prior to the
expiration of any restriction on such redemption provided in the terms of such Securities or elsewhere in this Indenture or pursuant to an election of the Company which is subject to a condition specified in the terms of such Securities, the Company
shall furnish the Trustee with an Officers’ Certificate and Opinion of Counsel evidencing compliance with such restriction or condition. 
 SECTION 1103 Selection By Trustee Of Securities To Be Redeemed. 
 If less than all the Securities of any series
are to be redeemed, the particular Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series issued on such date with the same terms not previously
called for redemption, by such method as the Trustee shall deem fair and appropriate and which may provide for the selection for redemption of portions (equal to the minimum authorized denomination for Securities of that series or any integral
multiple thereof) of the principal amount of Securities of such series of a

  

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denomination larger than the minimum authorized denomination for Securities of that series. The Trustee shall make the selection from Securities of the series that are Outstanding and that have
not previously been called for redemption and may provide for the selection for redemption of portions (equal to the minimum authorized denomination for Securities, including coupons, if any, of that series or any integral multiple thereof).

 If any Security selected for partial redemption is converted in part before termination of the conversion or exchange right
with respect to the portion of the Security so selected, the converted or exchanged portion of such Security shall be deemed (so far as may be) to be the portion selected for redemption. Securities which have been converted or exchanged during a
selection of Securities to be redeemed shall be treated by the Trustee as Outstanding for the purpose of such selection. In any case where more than one Security is registered in the same name, the Trustee in its discretion may treat the aggregate
principal amount so registered as if it were represented by one Security. 
 The Trustee shall promptly notify the Company and
the Security Registrar (if other than itself) in writing of the Securities selected for redemption and, in the case of any Securities selected for partial redemption, the principal amount thereof to be redeemed. 
 For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Securities shall
relate, in the case of any Security redeemed or to be redeemed only in part, to the portion of the principal amount of such Security which has been or is to be redeemed. 
 SECTION 1104 Notice Of Redemption. 
 Notice of redemption shall be given in
the manner provided in Section 106, not less than 30 days nor more than 60 days prior to the Redemption Date, unless a shorter period is specified by the terms of such series established pursuant to Section 301, to each Holder of
Securities to be redeemed, but failure to give such notice in the manner herein provided to the Holder of any Security designated for redemption as a whole or in part, or any defect in the notice to any such Holder, shall not affect the validity of
the proceedings for the redemption of any other such Security or portion thereof. 
 Any notice that is mailed to the Holders of
Registered Securities in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the Holder receives the notice. 
 All notices of redemption shall state: 
 (1) the Redemption Date;

 (2) the Redemption Price (or if not then ascertainable, the manner of calculation thereof), accrued interest
to the Redemption Date payable as provided in Section 1106, if any, and Additional Amounts, if any; 
 (3)
if less than all Outstanding Securities of any series are to be redeemed, the identification (and, in the case of partial redemption, the principal amount) of the particular Security or Securities to be redeemed; 
 (4) in case any Security is to be redeemed in part only, that on and after the Redemption Date, upon surrender of such
Security, the holder will receive, without a charge, a new Security or Securities of authorized denominations for the principal amount thereof remaining unredeemed; 
  

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 (5) that on the Redemption Date the Redemption Price and accrued interest to
the Redemption Date payable as provided in Section 1106, if any, will become due and payable upon each such Security, or the portion thereof, to be redeemed and, if applicable, that interest thereon shall cease to accrue on and after said date;

 (6) the Place or Places of Payment where such Securities, together in the case of Bearer Securities with all
coupons appertaining thereto, if any, maturing after the Redemption Date, are to be surrendered for payment of the Redemption Price and accrued interest, if any, or for conversion or exchange; 
 (7) that the redemption is for a sinking fund, if such is the case; 
 (8) that, unless otherwise specified in such notice, Bearer Securities of any series, if any, surrendered for redemption must
be accompanied by all coupons maturing subsequent to the date fixed for redemption or the amount of any such missing coupon or coupons will be deducted from the Redemption Price, unless security or indemnity satisfactory to the Company, the Trustee
for such series and any Paying Agent is furnished; 
 (9) if Bearer Securities of any series are to be redeemed
and any Registered Securities of such series are not to be redeemed, and if such Bearer Securities may be exchanged for Registered Securities not subject to the redemption on this Redemption Date pursuant to Section 305 or otherwise, the last
date, as determined by the Company, on which such exchanges may be made; 
 (10) the CUSIP number of such
Security, if any, provided that neither the Company nor the Trustee shall have any responsibility for any such CUSIP number; and 
 (11) if applicable, that a Holder of Securities who desires to convert or exchange Securities to be redeemed must satisfy the requirements for conversion or exchange contained in such Securities, the then
existing conversion or exchange price or rate and the date and time when the option to convert or exchange shall expire and the place or places where such Securities may be surrendered for conversion. 
 Notice of redemption of Securities to be redeemed shall be given by the Company or, at the Company’s written request, by the Trustee in
the name and at the expense of the Company. 
 SECTION 1105 Deposit Of Redemption Price. 
 On or prior to any Redemption Date, the Company shall deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its
own Paying Agent, which it may not do in the case of a sinking fund payment under Article Twelve, segregate and hold in trust as provided in Section 1003) an amount of money in the currency or currencies, currency unit or units or composite
currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) sufficient to pay on the Redemption Date the Redemption Price of, and (except if
the Redemption Date shall be an Interest Payment Date) accrued interest on, all the Securities or portions thereof which are to be redeemed on that date. 
 SECTION 1106 Securities Payable On Redemption Date. 
 Notice of redemption
having been given as aforesaid, the Securities so to be redeemed shall, on the Redemption Date, become due and payable at the Redemption Price therein specified in the currency or currencies, currency unit or units or composite currency or
currencies in which the Securities of such

  

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series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) (together with accrued interest, if any, to the Redemption Date), and from and
after such date (unless the Company shall default in the payment of the Redemption Price and accrued interest) such Securities shall, if the same were interest-bearing, cease to bear interest and the coupons for such interest appertaining to any
Bearer Securities so to be redeemed, except to the extent provided below, shall be void. Except as provided in the next succeeding paragraph, upon surrender of any such Security for redemption in accordance with said notice, together with all
coupons, if any, appertaining thereto maturing after the Redemption Date, such Security shall be paid by the Company at the Redemption Price, together with accrued interest, if any, to the Redemption Date; provided, however, that installments of
interest on Bearer Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise
specified as contemplated by Section 301, only upon presentation and surrender of coupons for such interest; and provided further that except as otherwise provided with respect to Securities convertible or exchangeable into other securities or
property of the Company, installments of interest on Registered Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable to the Holders of such Securities, or one or more Predecessor Securities, registered as such at
the close of business on the relevant Record Dates according to their terms and the provisions of Section 307. 
 If any
Bearer Security surrendered for redemption shall not be accompanied by all appurtenant coupons maturing after the Redemption Date, such Security may be paid after deducting from the Redemption Price an amount equal to the face amount of all such
missing coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If
thereafter the Holder of such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made from the Redemption Price, such Holder shall be entitled to receive the amount so
deducted; provided, however, that interest (and any Additional Amounts) represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise
specified as contemplated by Section 301, only upon presentation and surrender of those coupons. If any Security called for redemption shall not be so paid upon surrender thereof for redemption, the principal, (and premium or Make-Whole Amount,
if any) shall, until paid, bear interest from the Redemption Date at the rate borne by the Security. 
 SECTION 1107 Securities Redeemed In
Part. 
 Any Security which is to be redeemed only in part (pursuant to the provisions of this Article or of Article Twelve)
shall be surrendered at a Place of Payment therefor (with, if the Company or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the Holder thereof or
his attorney duly authorized in writing) and the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security without service charge a new Security or Securities of the same series, of any authorized
denomination as requested by such Holder in aggregate principal amount equal to and in exchange for the unredeemed portion of the principal of the Security so surrendered. 
  

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 ARTICLE TWELVE 
 SINKING FUNDS 
 SECTION 1201 Applicability Of Article.

 The provisions of this Article shall be applicable to any sinking fund for the retirement of Securities of a series except as
otherwise specified as contemplated by Section 301 for Securities of such series. 
 The minimum amount of any sinking fund
payment provided for by the terms of Securities of any series is herein referred to as a “mandatory sinking fund payment,” and any payment in excess of such minimum amount provided for by the terms of such Securities of any series is
herein referred to as an “optional sinking fund payment.” If provided for by the terms of any Securities of any series, the cash amount of any mandatory sinking fund payment may be subject to reduction as provided in Section 1202.
Each sinking fund payment shall be applied to the redemption of Securities of any series as provided for by the terms of Securities of such series. 
 SECTION 1202 Satisfaction Of Sinking Fund Payments With Securities. 
 The Company may, in satisfaction of all or
any part of any mandatory sinking fund payment with respect to the Securities of a series, (1) deliver Outstanding Securities of such series (other than any previously called for redemption) together in the case of any Bearer Securities of such
series with all unmatured coupons appertaining thereto and (2) apply as a credit Securities of such series which have been redeemed either at the election of the Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such Securities, as provided for by the terms of such Securities, or which have otherwise been acquired by the Company; provided that such Securities so delivered or applied as a
credit have not been previously so credited. Such Securities shall be received and credited for such purpose by the Trustee at the applicable Redemption Price specified in such Securities for redemption through operation of the sinking fund and the
amount of such mandatory sinking fund payment shall be reduced accordingly. 
 SECTION 1203 Redemption Of Securities For Sinking Fund.

 Not less than 60 days prior to each sinking fund payment date for Securities of any series, the Company will deliver to the
Trustee an Officers’ Certificate specifying the amount of the next ensuing mandatory sinking fund payment for that series pursuant to the terms of that series, the portion thereof, if any, which is to be satisfied by payment of cash in the
currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) and the portion
thereof, if any, which is to be satisfied by delivering and crediting Securities of that series pursuant to Section 1202, and the optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and will also
deliver to the Trustee any Securities to be so delivered and credited. If such Officers’ Certificate shall specify an optional amount to be added in cash to the next ensuing mandatory sinking fund payment, the Company shall thereupon be
obligated to pay the amount therein specified. Not more than 60 nor less than 30 days before each such sinking fund payment date the Trustee shall select the Securities to be redeemed upon such sinking fund payment date in the manner specified in
Section 1103 and cause notice of the redemption thereof to be given in the name of and at the expense of the Company in the manner provided in Section 1104. Such notice having been duly given, the redemption of such Securities shall be
made upon the terms and in the manner stated in Section 1106 and 1107. 
  

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 ARTICLE THIRTEEN 
 REPAYMENT AT THE OPTION OF HOLDERS 
 SECTION1301 Applicability Of
Article. 
 Repayment of Securities of any series before their Stated Maturity at the option of Holders thereof shall be made
in accordance with the terms of such Securities, if any, and (except as otherwise specified by the terms of such series established pursuant to Section 301) in accordance with this Article. 
 SECTION1302 Repayment Of Securities. 
 Securities of any series subject to repayment in whole or in part at the option of the Holders thereof will, unless otherwise provided in the terms of such Securities, be repaid at a price equal to the
principal amount thereon, together with interest, if any, thereof accrued to the Repayment Date specified in or pursuant to the terms of such Securities. The Company covenants that on or before the Repayment Date it will deposit with the Trustee or
with a Paying Agent (or, if the Company is acting as its own Paying Agent, segregate and hold in trust as provided in Section 1003) an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in
which the Securities of such series are payable (except as otherwise specified pursuant to Section 301 for the Securities of such series) sufficient to pay the principal (or, if so provided by the terms of the Securities of any series, a
percentage of the principal) of, and (except if the Repayment Date shall be an Interest Payment Date) accrued interest on, all the Securities or portion thereof, as the case may be, to be repaid on such date. 
 SECTION 1303 Exercise Of Option. 
 Securities of any series subject to repayment at the option of the Holders thereof will contain an “Option to Elect Repayment” form on the reverse of such Securities. In order for any Security
to be repaid at the option of the Holder, the Trustee must receive at the Place of Payment therefor specified in the terms of such Security (or at such other place or places of which the Company shall from time to time notify the Holders of such
Securities) not earlier than 60 days nor later than 30 days prior to the Repayment Date (1) the Security so providing for such repayment together with the “Option to Elect Repayment” form on the reverse thereof duly completed by the
Holder (or by the Holder’s attorney duly authorized in writing) or (2) a telegram, telex, facsimile transmission or a letter from a member of a national securities exchange, or the National Association of Securities Dealers, Inc.
(“NASD”), or a commercial bank or trust company in the United States setting forth the name of the Holder of the Security, the principal amount of the Security, the principal amount of the Security to be repaid, the CUSIP number, if any,
or a description of the tenor and terms of the Security, a statement that the option to elect repayment is being exercised thereby and a guarantee that the Security to be repaid, together with the duly completed form entitled “Option to Elect
Repayment” on the reverse of the Security, will be received by the Trustee not later than the third Business Day after the date of such telegram, telex, facsimile transmission or letter; provided, however, that such telegram, telex, facsimile
transmission or letter shall only be effective if such Security and form duly completed are received by the Trustee by such third Business Day. If less than the entire principal amount of such Security is to be repaid in accordance with the terms of
such Security, the principal amount of such Security to be repaid, in increments of the minimum denomination for Securities of such series, and the denomination or denominations of the Security or Securities to be issued to the Holder for the
portion of the principal amount of such Security surrendered that is not to be repaid, must be specified. The principal amount of any Security providing for repayment at the option of the Holder thereof may not be repaid in part if, following such
repayment, the unpaid principal amount of such Security would be less than the minimum authorized denomination of Securities of or within the series of which such Security to be repaid is a part. Except as otherwise may be

  

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 provided by the terms of any Security providing for repayment at the option of the Holder thereof, exercise
of the repayment option by the Holder shall be irrevocable unless waived by the Company. 
 SECTION 1304 When Securities Presented For
Repayment Become Due And Payable. 
 If Securities of any series providing for repayment at the option of the Holders thereof
shall have been surrendered as provided in this Article and as provided by or pursuant to the terms of such Securities, such Securities or the portions thereof, as the case may be, to be repaid shall become due and payable and shall be paid by the
Company on the Repayment Date therein specified, and on and after such Repayment Date (unless the Company shall default in the payment of such Securities on such Repayment Date) such Securities shall, if the same were interest bearing, cease to bear
interest and the coupons for such interest appertaining to any Bearer Securities so to be repaid, except to the extent provided below, shall be void. Upon surrender of any such Security for repayment in accordance with such provisions, together with
all coupons, if any, appertaining thereto maturing after the Repayment Date, the principal amount of such security so to be repaid shall be paid by the Company, together with accrued interest, if any, to the Repayment Date; provided, however, that
coupons whose Stated Maturity is on or prior to the Repayment Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified pursuant to
Section 301, only upon presentation and surrender of such coupons; and provided further that, in the case of Registered Securities, installments of interest, if any, whose Stated Maturity is on or prior to the Repayment Date shall be payable
(but without interest thereon, unless the Company shall default in the payment thereof) to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant Record Dates according to
their terms and the provisions of Section 307. 
 If any Bearer Security surrendered for repayment shall not be accompanied
by all appurtenant coupons maturing after the Repayment Date, such Security may be paid after deducting from the amount payable therefor as provided in Section 1302 an amount equal to the face amount of all such missing coupons, or the
surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of
such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made as provided in the preceding sentence, such Holder shall be entitled to receive the amount so deducted;
provided, however, that interest represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 1002) and, unless otherwise specified as contemplated by
Section 301, only upon presentation and surrender of those coupons. If the principal amount of any Security surrendered for repayment shall not be so repaid upon surrender thereof, such principal amount (together with interest, if any, thereon
accrued to such Repayment Date) shall, until paid, bear interest from the Repayment Date at the rate of interest or Yield to Maturity (in the case of Original Issue Discount Securities) set forth in such Security. 
 SECTION 1305 Securities Repaid In Part. 
 Upon surrender of any Registered Security which is to be repaid in part only, the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security, without service
charge and at the expense of the Company, a new Registered Security or Securities of the same series, of any authorized denomination specified by the Holder, in an aggregate principal amount equal to and in exchange for the portion of the principal
of such Security so surrendered which is not to be repaid. 
  

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 ARTICLE FOURTEEN 
 DEFEASANCE AND COVENANT DEFEASANCE 
 SECTION 1401 Applicability Of
Article; Company’s Option To Effect Defeasance Or Covenant Defeasance. 
 If, pursuant to Section 301, provision is
made for either or both of (a) defeasance of the Securities of or within a series under Section 1402 or (b) covenant defeasance of the Securities of or within a series under Section 1403 to be applicable to the Securities of any
series, then the provisions of such Section or Sections, as the case may be, together with the other provisions of this Article (with such modifications thereto as may be specified pursuant to Section 301 with respect to any Securities), shall
be applicable to such Securities and any coupons appertaining thereto, and the Company may at its option by Board Resolution at any time, with respect to such Securities and any coupons appertaining thereto, elect to defease such Outstanding
Securities and coupons appertaining thereto pursuant to Section 1402 (if applicable) or Section 1403 (if applicable) upon compliance with the conditions set forth below in this Article. 
 SECTION 1402 Defeasance And Discharge. 
 Upon the Company’s exercise of the above option applicable to this Section with respect to any Securities of or within a series, the Company shall be deemed to have been discharged from its
obligations with respect to such Outstanding Securities and any coupons appertaining thereto on and after the date the conditions set forth in Section 1404 are satisfied (hereinafter, “defeasance”). For this purpose, such defeasance
means that the Company shall be deemed to have paid and discharged the entire indebtedness represented by such Outstanding Securities and any coupons appertaining thereto, which shall thereafter be deemed to be “Outstanding” only for the
purposes of Section 1405 and the other Sections of this Indenture referred to in clauses (A) and (B) below, and to have satisfied all of its other obligations under such Securities and any coupons appertaining thereto and this
Indenture insofar as such Securities and any coupons appertaining thereto are concerned (and the Trustee, at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following which shall survive until
otherwise terminated or discharged hereunder: (A) the rights of Holders of such Outstanding Securities and any coupons appertaining thereto to receive, solely from the trust fund described in Section 1404 and as more fully set forth in
such Section, payments in respect of the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities and any coupons appertaining thereto when such payments are due, (B) the Company’s obligations with
respect to such Securities under Sections 305, 306, 1002 and 1003 and with respect to the payment of Additional Amounts, if any, on such Securities as contemplated by Section 1011, (C) the rights, powers, trusts, duties and immunities of
the Trustee hereunder and (D) this Article. Subject to compliance with this Article Fourteen, the Company may exercise its option under this Section notwithstanding the prior exercise of its option under Section 1403 with respect to such
Securities and any coupons appertaining thereto. 
 SECTION 1403 Covenant Defeasance. 
 Upon the Company’s exercise of the above option applicable to this Section with respect to any Securities of or within a series, the
Company shall be released from its obligations under Section 1005, and, if specified pursuant to Section 301, its obligations under any other covenant, with respect to such Outstanding Securities and any coupons appertaining thereto on and
after the date the conditions set forth in Section 1404 are satisfied (hereinafter, “covenant defeasance”), and such Securities and any coupons appertaining thereto shall thereafter be deemed to be not “Outstanding” for the
purposes of any direction, waiver, consent or declaration or Act of Holders (and the consequences of any thereof) in connection with Section 1005, or such other covenant, but shall continue to be deemed “Outstanding” for all other

  

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purposes hereunder. For this purpose, such covenant defeasance means that, with respect to such Outstanding Securities and any coupons appertaining thereto, the Company may omit to comply with
and shall have no liability in respect of any term, condition or limitation set forth in any such Section or such other covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such Section or such other covenant
or by reason of reference in any such Section or such other covenant to any other provision herein or in any other document and such omission to comply shall not constitute a default or an Event of Default under Section 501(4) or 501(8) or
otherwise, as the case may be, but, except as specified above, the remainder of this Indenture and such Securities and any coupons appertaining thereto shall be unaffected thereby. 
 SECTION 1404 Conditions To Defeasance Or Covenant Defeasance. 
 The
following shall be the conditions to application of Section 1402 or Section 1403 to any Outstanding Securities of or within a series and any coupons appertaining thereto: 
 (a) The Company shall irrevocably have deposited or caused to be deposited with the Trustee (or another trustee satisfying
the requirements of Section 607 who shall agree to comply with the provisions of this Article Fourteen applicable to it) as trust funds in trust for the purpose of making the following payments, specifically pledged as security for, and
dedicated solely to, the benefit of the Holders of such Securities and any coupons appertaining thereto, (1) an amount in such currency, currencies or currency unit in which such Securities and any coupons appertaining thereto are then
specified as payable at Stated Maturity, or (2) if Securities of such series are not subject to early repayment at the option of the Holders, Government Obligations applicable to such Securities and coupons appertaining thereto (determined on
the basis of the currency, currencies or currency unit in which such Securities and coupons appertaining thereto are then specified as payable at Stated Maturity) which through the scheduled payment of principal and interest in respect thereof in
accordance with their terms will provide, not later than one day before the due date of any payment of principal of (and premium or Make-Whole Amount, if any) and interest, if any, and Additional Amounts, if any, on such Securities and any coupons
appertaining thereto, money in an amount, or (3) a combination thereof in an amount, sufficient, without consideration of any reinvestment of such principal and interest, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the Trustee, to pay and discharge, and which shall be applied by the Trustee (or other qualifying trustee) to pay and discharge, (i) the principal of (and premium or
Make-Whole Amount, if any) and interest, if any, and Additional Amounts, if any on such Outstanding Securities and any coupons appertaining thereto on the Stated Maturity of such principal or installment of principal or interest and (ii) any
mandatory sinking fund payments or analogous payments applicable to such Outstanding Securities and any coupons appertaining thereto on the day on which such payments are due and payable in accordance with the terms of this Indenture and of such
Securities and any coupons appertaining thereto; provided, that the Trustee shall have been irrevocably instructed to apply such money or the proceeds of such Government Obligations to said payments with respect to such Securities. Before such a
deposit, the Company may give to the Trustee, in accordance with Section 1102 hereof, a notice of its election to redeem all or any portion of such Outstanding Securities at a future date in accordance with the terms of the Securities of such
series and Article Eleven hereof, which notice shall be irrevocable. Such irrevocable redemption notice, if given, shall be given effect in applying the foregoing. 
 (b) Such defeasance or covenant defeasance shall not result in a breach or violation of, or constitute a breach or default
under, this Indenture or any other material agreement or instrument to which the Company is a party or by which it is bound (and shall not cause the Trustee to have a conflicting interest pursuant to Section 310(b) of the TIA with respect to
any Security of the Company). 
  

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 (c) No Event of Default or event which with notice or lapse of time or both
would become an Event of Default with respect to such Securities and any coupons appertaining thereto shall have occurred and be continuing on the date of such deposit or, insofar as Sections 501(6) and 501(7) are concerned, at any time during the
period ending on the 91st day after the date of such deposit (it being understood that this condition shall not be deemed satisfied until the expiration of such period). 
 (d) In the case of an election under Section 1402, the Company shall have delivered to the Trustee an Opinion of Counsel
stating that (i) the Company has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this Indenture, there has been a change in the applicable Federal income tax law,
in either case to the effect that, and based thereon such opinion shall confirm that, the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result
of such defeasance and will be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred. 
 (e) In the case of an election under Section 1403, the Company shall have delivered to the Trustee an Opinion of Counsel
to the effect that the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result of such covenant defeasance and will be subject to Federal income
tax on the same amounts, in the same manner and at the same times as would have been the case if such covenant defeasance had not occurred. 
 (f) The Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent to the defeasance under Section 1402 or the
covenant defeasance under Section 1403 (as the case may be) have been complied with and an Opinion of Counsel to the effect that either (i) as a result of a deposit pursuant to subsection (a) above and the related exercise of the
Company’s option under Section 1402 or Section 1403 (as the case may be) registration is not required under the Investment Company Act of 1940, as amended, by the Company, with respect to the trust funds representing such deposit or
by the Trustee for such trust funds or (ii) all necessary registrations under said Act have been effected. 
 (g) After the 91st day following the deposit, the trust funds will not be subject to the effect of any applicable bankruptcy, insolvency, reorganization or similar laws affecting creditors’ rights generally. 
 (h) Notwithstanding any other provisions of this Section, such defeasance or covenant defeasance shall be effected in
compliance with any additional or substitute terms, conditions or limitations which may be imposed on the Company in connection therewith pursuant to Section 301. 
 SECTION 1405 Deposited Money And Government Obligations To Be Held In Trust; Other Miscellaneous Provisions. 
 Subject to the provisions of the last paragraph of Section 1003, all money and Government Obligations (or other property as may be provided pursuant to Section 301) (including the proceeds
thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 1405, the “Trustee”) pursuant to Section 1404 in respect of any Outstanding Securities of any series and any coupons
appertaining thereto shall be held in trust and applied by the Trustee, in accordance with the provisions of such Securities and any coupons appertaining thereto and this Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders of such Securities and any coupons appertaining thereto of all sums due and to become due thereon in respect of principal (and premium or Make-Whole
Amount, if

  

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any) and interest and Additional Amounts, if any, but such money need not be segregated from other funds except to the extent required by law. 
 Unless otherwise specified with respect to any Security pursuant to Section 301, if, after a deposit referred to in
Section 1404(a) has been made, (a) the Holder of a Security in respect of which such deposit was made is entitled to, and does, elect pursuant to Section 301 or the terms of such Security to receive payment in a currency or currency
unit other than that in which the deposit pursuant to Section 1404(a) has been made in respect of such Security, or (b) a Conversion Event occurs in respect of the currency or currency unit in which the deposit pursuant to
Section 1404(a) has been made, the indebtedness represented by such Security and any coupons appertaining thereto shall be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of (and premium or
Make-Whole Amount, if any), and interest, if any, on such Security as the same becomes due out of the proceeds yielded by converting (from time to time as specified below in the case of any such election) the amount or other property deposited in
respect of such Security into the currency or currency unit in which such Security becomes payable as a result of such election or Conversion Event based on the applicable market exchange rate for such currency or currency unit in effect on the
second Business Day prior to each payment date, except, with respect to a Conversion Event, for such currency or currency unit in effect (as nearly as feasible) at the time of the Conversion Event. 
 The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the Government
Obligations deposited pursuant to Section 1404 or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of such Outstanding Securities and any coupons
appertaining thereto. 
 Anything in this Article to the contrary notwithstanding, the Trustee shall deliver or pay to the
Company from time to time upon Company Request any money or Government Obligations (or other property and any proceeds therefrom) held by it as provided in Section 1404 which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the amount thereof which would then be required to be deposited to effect a defeasance or covenant defeasance, as applicable, in accordance with this
Article. 
 SECTION 1406 Reinstatement. 
 If the Trustee or the Paying Agent is unable to apply any money or the Government Obligations, as the case may be, in accordance with this Article with respect to any Securities by reason of any order or
judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the obligations under this Indenture, such Securities and any coupons appertaining thereto from which the Company has been
discharged or released pursuant to Section 1402 or 1403 shall be revived and reinstated as though no deposit had occurred pursuant to this Article with respect to such Securities, until such time as the Trustee or Paying Agent is permitted to
apply all money or Government Obligations, as the case may be, held in trust pursuant to Section 1405 with respect to such Securities and any coupons appertaining thereto in accordance with this Article; provided, however, that if the Company
makes any payment of principal of or any premium or interest on any such Security following such reinstatement of its obligations, the Company shall be subrogated to the rights (if any) of the Holders of such Securities or coupons to receive such
payment from the money or Government Obligations, as the case may be, so held in trust. 
 SECTION 1407 Qualifying Trustee. 

Any trustee appointed pursuant to Section 1404 for the purpose of holding trust funds deposited pursuant to that Section shall be
appointed under an agreement in form acceptable to the Trustee and shall

  

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provide to the Trustee a certificate of such trustee, upon which certificate the Trustee shall be entitled to conclusively rely, that all conditions precedent provided for herein to the related
defeasance or covenant defeasance have been complied with. In no event shall the Trustee be liable for any acts or omissions of said trustee. 
 ARTICLE FIFTEEN 
 MEETINGS OF HOLDERS OF SECURITIES 
 SECTION 1501 Purposes For Which Meetings May Be Called. 
 A meeting of Holders of Securities of any series may be called at any time and from time to time pursuant to this Article to make, give or take any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be made, given or taken by Holders of Securities of such series. 
 SECTION 1502
Call, Notice And Place Of Meetings. 
 (a) The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1501, to be held at such time and at such place in the City of Chattanooga, Tennessee or the Borough of Manhattan, The City of New York, or in London as the Trustee shall determine.
Notice of every meeting of Holders of Securities of any series, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting, shall be given, in the manner provided in Section 106,
not less than 21 nor more than 180 days prior to the date fixed for the meeting. 
 (b) In case at any time the
Company, pursuant to a Board Resolution, or the Holders of at least 10% in principal amount of the Outstanding Securities of any series shall have requested the Trustee to call a meeting of the Holders of Securities of such series for any purpose
specified in Section 1501, by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have made the first publication of the notice of such meeting within 21 days after
receipt of such request or shall not thereafter proceed to cause the meeting to be held as provided herein, then the Company or the Holders of Securities of such series in the amount above specified, as the case may be, may determine the time and
the place in the City of Chattanooga, Tennessee or the Borough of Manhattan, The City of New York, or in London for such meeting and may call such meeting for such purposes by giving notice thereof as provided in subsection (a) of this Section.

 SECTION 1503 Persons Entitled To Vote At Meetings. 
 To be entitled to vote at any meeting of Holders of Securities of any series, a Person shall be (1) a Holder of one or more Outstanding Securities of such series, or (2) a Person appointed by an
instrument in writing as proxy for a Holder or Holders of one or more Outstanding Securities of such series by such Holder or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Holders of Securities of any
series shall be the Persons entitled to vote at such meeting and their counsel, any representatives of the Trustee and its counsel and any representatives of the Company and its counsel. 
 SECTION 1504 Quorum; Action. 
 The Persons entitled to vote a majority in
principal amount of the Outstanding Securities of a series shall constitute a quorum for a meeting of Holders of Securities of such series; provided, however, that if any action is to be taken at such meeting with respect to a consent or waiver
which this Indenture expressly provides may be given by the Holders of not less than a specified percentage in principal

  

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amount of the Outstanding Securities of a series, the Persons entitled to vote such specified percentage in principal amount of the Outstanding Securities of such series shall constitute a
quorum. In the absence of a quorum within 30 minutes after the time appointed for any such meeting, the meeting shall, if convened at the request of Holders of Securities of such series, be dissolved. In any other case the meeting may be adjourned
for a period of not less than 10 days as determined by the chairman of the meeting prior to the adjournment of such meeting. In the absence of a quorum at any such adjourned meeting, such adjourned meeting may be further adjourned for a period of
not less than 10 days as determined by the chairman of the meeting prior to the adjournment of such adjourned meeting. Notice of the reconvening of any adjourned meeting shall be given as provided in Section 1502(a), except that such notice
need be given only once not less than five (5) days prior to the date on which the meeting is scheduled to be reconvened. Notice of the reconvening of any adjourned meeting shall state expressly the percentage, as provided above, of the
principal amount of the Outstanding Securities of such series which shall constitute a quorum. Except as limited by the proviso to Section 902, any resolution presented to a meeting or adjourned meeting duly reconvened at which a quorum is
present as aforesaid may be adopted by the affirmative vote of the Holders of a majority in principal amount of the Outstanding Securities of that series; provided, however, that, except as limited by the proviso to Section 902, any resolution
with respect to any request, demand, authorization, direction, notice, consent, waiver or other action which this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage, which is less than a majority, in
principal amount of the Outstanding Securities of a series may be adopted at a meeting or an adjourned meeting duly reconvened and at which a quorum is present as aforesaid by the affirmative vote of the Holders of such specified percentage in
principal amount of the Outstanding Securities of that series. 
 Any resolution passed or decision taken at any meeting of
Holders of Securities of any series duly held in accordance with this Section shall be binding on all the Holders of Securities of such series and the related coupons, whether or not present or represented at the meeting. 
 Notwithstanding the foregoing provisions of this Section 1504, if any action is to be taken at a meeting of Holders of Securities of
any series with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage in principal amount of all
Outstanding Securities affected thereby, or of the Holders of such series and one or more additional series: 
 (i) there shall be no minimum quorum requirement for such meeting; and 
 (ii) the principal amount of
the Outstanding Securities of such series that vote in favor of such request, demand, authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether such request, demand, authorization,
direction, notice, consent, waiver or other action has been made, given or taken under this Indenture. 
 SECTION 1505 Determination Of
Voting Rights; Conduct And Adjournment Of Meetings. 
 (a) Notwithstanding any provisions of this Indenture,
the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders of Securities of a series in regard to proof of the holding of Securities of such series and of the appointment of proxies and in regard to the
appointment and duties of inspectors of votes, the submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it shall deem appropriate. Except as
otherwise permitted or required by any such regulations, the holding of Securities shall be proved in the manner specified in Section 104 and the appointment of any proxy shall be proved in the manner specified in Section 104 or by having
the signature of the Person executing the proxy witnessed or guaranteed by any trust company, bank or banker authorized by Section

  

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104 to certify to the holding of Bearer Securities. Such regulations may provide that written instruments appointing proxies, regular on their face, may be presumed valid and genuine without the
proof specified in Section 104 or other proof. 
 (b) The Trustee shall, by an instrument in writing,
appoint a temporary chairman of the meeting, unless the meeting shall have been called by the Company or by Holders of Securities as provided in Section 1502(b), in which case the Company or the Holders of Securities of or within the series
calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the meeting shall be elected by vote of the Persons entitled to vote a majority in principal amount of the
Outstanding Securities of such series represented at the meeting. 
 (c) At any meeting each Holder of a Security
of such series or proxy shall be entitled to one vote for each $1,000 principal amount of the Outstanding Securities of such series held or represented by him; provided, however, that no vote shall be cast or counted at any meeting in respect of any
Security challenged as not Outstanding and ruled by the chairman of the meeting to be not Outstanding. The chairman of the meeting shall have no right to vote, except as a Holder of a Security of such series or proxy. 
 (d) Any meeting of Holders of Securities of any series duly called pursuant to Section 1502 at which a quorum is present
may be adjourned from time to time by Persons entitled to vote a majority in principal amount of the Outstanding Securities of such series represented at the meeting, and the meeting may be held as so adjourned without further notice. 
 SECTION 1506 Counting Votes And Recording Action Of Meetings. 
 The vote upon any resolution submitted to any meeting of Holders of Securities of any series shall be by written ballots on which shall be subscribed the signatures of the Holders of Securities of such
series or of their representatives by proxy and the principal amounts and serial numbers of the Outstanding Securities of such series held or represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes who shall
count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their verified written reports in duplicate of all votes cast at the meeting. A record, at least in duplicate, of the
proceedings of each meeting of Holders of Securities of any series shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of the inspectors of votes on any vote by ballot taken thereat and
affidavits by one or more persons having knowledge of the fact, setting forth a copy of the notice of the meeting and showing that said notice was given as provided in Section 1502 and, if applicable, Section 1504. Each copy shall be
signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one such copy shall be delivered to the Company and another to the Trustee to be preserved by the Trustee, the latter to have attached thereto the
ballots voted at the meeting. Any record so signed and verified shall be conclusive evidence of the matters therein stated. 
 SECTION 1507
Evidence Of Action Taken By Holders. 
 Any request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Indenture to be given or taken by a specified percentage in principal amount of the Holders of any or all series may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such
specified percentage of Holders in person or by agent duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Trustee. Proof of
execution of any instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Indenture and (subject to Sections

  

 70 

 
315(a) through 315(d) of the TIA) conclusive in favor of the Trustee and the Company, if made in the manner provided in this Article. 
 SECTION 1508 Proof Of Execution Of Instruments. 
 Subject to TIA Sections 315(a) through 315(d), the execution of any instrument by a Holder or his agent or proxy may be proved in accordance with such reasonable rules and regulations as may be prescribed
by the Trustee or in such manner as shall be satisfactory to the Trustee. 
 ARTICLE SIXTEEN 
 CONVERSION OR EXCHANGE OF SECURITIES 
 SECTION 1601 Applicability Of Article. 
 The provisions of this Article shall be applicable to the Securities of
any series which are convertible or exchangeable for other securities or property (including securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use
Form S-3 (or any successor form) for a primary offering of its securities) of the Company, except as otherwise specified as contemplated by Section 301 for the Securities of such series. 
 SECTION 1602 Election To Exchange; Notice To Trustee And Holders. 
 The election of the Company to exchange any Securities shall be evidenced by a Board Resolution or in another manner specified as contemplated by Section 301 for such Securities. On or prior to the
seventh Business Day prior to Maturity of the Securities, the Company shall provide written notice to the Holders of record of the Securities and to the Trustee and will publish a notice in a daily newspaper of national circulation stating whether
the Company has made such election. 
 SECTION 1603 No Fractional Shares. 
 No fractional shares of securities shall be delivered upon exchanges of Securities of any series. If more than one Security shall be
surrendered for exchange at one time by the same Holder, the number of full shares which shall be delivered upon exchange shall be computed on the basis of the aggregate principal amount of the Securities (or specified portions thereof to the extent
permitted hereby) so surrendered. If, except for the provisions of this Section 1603, any Holder of a Security or Securities would be entitled to a fractional share of a security upon the exchange of such Security or Securities, or specified
portions thereof, the Company shall pay to such Holder an amount in cash equal to the current market value of such fractional share computed on the basis of an average Closing Price of such security. The “Closing Price” of any security on
any date of determination means, (i) if such security is listed or admitted to unlisted trading privileges on a national securities exchange, the last reported sale price regular way on such exchange, (ii) if such security is not at the
time so listed, as reported by the NASDAQ National Market, or (iii) if such security is not at the time so listed or reported or admitted to unlisted trading privileges on a national securities exchange, the average of the bid and asked prices
of such security in the over-the-counter market, as reported by the National Quotation Bureau, Incorporated or similar organization if the National Quotation Bureau, Incorporated is no longer reporting such information, or if not so available, the
market price as determined by a nationally recognized independent investment banking firm retained for this purpose by the Company. 
  

 71 

 SECTION 1604 Adjustment Of Exchange Rate. 
 The exchange rate of Securities of any series that is exchangeable for other securities or property (including securities of other issuers,
provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of its securities) of the Company shall be adjusted for any stock
dividends, stock splits, reclassification, combinations or similar transactions or any consolidation, merger or other reorganization event in accordance with the terms of the supplemental indenture or Board Resolution setting forth the terms of the
Securities of such series. 
 Whenever the exchange rate is adjusted, the Company shall compute the adjusted exchange rate in
accordance with terms of the applicable Board Resolution or supplemental indenture and shall prepare an Officers’ Certificate setting forth the adjusted exchange rate and showing in reasonable detail the facts upon which such adjustment is
based, and such certificate shall forthwith be filed at each office or agency maintained for the purpose of exchange of Securities pursuant to Section 1002 and, if different, with the Trustee. The Company shall forthwith cause a notice setting
forth the adjusted exchange rate to be mailed, first class postage prepaid, to each Holder of Securities of such series at its address appearing on the Security Register and to any exchange agent other than the Trustee. 
 SECTION 1605 Payment Of Certain Taxes Upon Exchange. 
 The Company will pay any and all taxes that may be payable in respect of the transfer and delivery of shares of other securities or property (including securities of other issuers, provided that such
securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of its securities) of the Company on exchange of Securities pursuant hereto. The
Company shall not, however, be required to pay any tax which may be payable in respect of any transfer involved in the delivery of shares of securities in a name other than that of the Holder of the Security or Securities to be exchanged, and no
such transfer or delivery shall be made unless and until the person requesting such transfer has paid to the Company the amount of any such tax, or has established, to the satisfaction of the Company, that such tax has been paid. 
 SECTION 1606 Shares Free And Clear. 
 The Company hereby warrants that upon exchange of Securities of any series, the Holder of a Security shall receive all rights held by the Company in such security for which such Security is at such time exchangeable under this Article
Sixteen, free and clear of any and all liens, claims, charges and encumbrances other than, to the extent permitted by the terms of the Securities of such series, any liens, claims, charges and encumbrances which may have been placed on any such
security by the prior owner thereof, prior to the time such security was acquired by the Company. Except as provided in Section 1604, the Company will pay all taxes and charges with respect to the delivery of such security delivered in exchange
for Securities hereunder. 
 SECTION 1607 Cancellation Of Security. 
 Upon receipt by the Trustee of Securities of any series delivered to it for exchange under this Article Sixteen, the Trustee shall cancel and
dispose of the same as provided in Section 309. 
 SECTION 1608 Duties Of Trustee Regarding Exchange. 
 Neither the Trustee nor any exchange agent shall at any time be under any duty or responsibility to any Holder of Securities of any series
that is exchangeable into other securities or property (including

  

 72 

 
securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a
primary offering of its securities) of the Company to determine whether any facts exist which may require any adjustment of the exchange rate, or with respect to the nature or extent of any such adjustment when made, or with respect to the method
employed, whether herein or in any supplemental indenture, any resolutions of the Board of Directors or written instrument executed by one or more officers of the Company provided to be employed in making the same. Neither the Trustee nor any
exchange agent shall be accountable with respect to the validity or value (or the kind or amount) of any securities or property (including securities of other issuers, provided that such securities are registered under Section 12 of the
Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of its securities) of the Company, or of any Securities and neither the Trustee nor any exchange agent makes any representation with respect
thereto. Subject to the provisions of Section 612, neither the Trustee nor any exchange agent shall be responsible for any failure of the Company to issue, transfer or deliver any stock certificates or other securities or property (including
securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of its securities) upon the surrender
of any Security for the purpose of exchange or to comply with any of the covenants of the Company contained in this Article Sixteen or in the applicable supplemental indenture, resolutions of the Board of Directors or written instrument executed by
one or more duly authorized officers of the Company. 
 SECTION 1609 Repayment Of Certain Funds Upon Exchange. 
 Any funds which at any time shall have been deposited by the Company or on its behalf with the Trustee or any other paying agent for the
purpose of paying the principal of, and premium, if any, and interest, if any, on any of the Securities (including funds deposited for the sinking fund referred to in Article Twelve hereof) and which shall not be required for such purposes because
of the exchange of such Securities as provided in this Article Sixteen shall after such exchange be repaid to the Company by the Trustee upon the Company’s written request. 
 SECTION 1610 Exercise Of Conversion Privilege. 
 In order to exercise a
conversion or exchange privilege, the Holder of a Security of a series with such a privilege shall surrender such Security to the Company at the office or agency maintained for that purpose pursuant to Section 1002, accompanied by written
notice to the Company that the Holder elects to convert or exchange such Security or a specified portion thereof. Such notice shall also state, if different from the name or names (with address) in which the Securities are registered, the name or
names in which the securities or property (including securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a
primary offering of its securities) of the Company which shall be issuable on such conversion or exchange shall be issued. Securities surrendered for conversion or exchange shall (if so required by the Company or the Trustee) be duly endorsed by or
accompanied by instruments of transfer in forms satisfactory to the Company and the Trustee duly executed by the registered Holder or its attorney duly authorized in writing; and Securities so surrendered for conversion or exchange during the period
from the close of business on any Regular Record Date to the opening of business on the next succeeding Interest Payment Date (excluding Securities or portions thereof called for redemption during such period) shall also be accompanied by payment in
funds acceptable to the Company of an amount equal to the interest payable on such Interest Payment Date on the principal amount of such Security then being converted, and such interest shall be payable to such registered Holder notwithstanding the
conversion or exchange of such Security, subject to the provisions of Section 307 relating to the payment of Defaulted Interest by the Company. As promptly as practicable after the receipt of such notice and of any payment required pursuant to
a Board Resolution and, subject to Section 303, set forth, or determined

  

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in the manner provided, in an Officers’ Certificate, or established in one or more indentures supplemental hereto setting forth the terms of such series of Security, and the surrender of
such Security in accordance with such reasonable regulations as the Company may prescribe, the Company shall issue and shall deliver, at the office or agency at which such Security is surrendered, to such Holder or on its written order, securities
or property (including securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of its
securities) of the Company issuable or deliverable upon the conversion or exchange of such Security (or specified portion thereof), in accordance with the provisions of such Board Resolution, Officers’ Certificate or supplemental indenture, and
cash as provided therein in respect of any fractional share of such common stock otherwise issuable upon such conversion or exchange. Such conversion or exchange shall be deemed to have been effected immediately prior to the close of business on the
date on which such notice and such payment, if required, shall have been received in proper order for conversion or exchange by the Company and such Security shall have been surrendered as aforesaid (unless such Holder shall have so surrendered such
Security and shall have instructed the Company to effect the conversion or exchange on a particular date following such surrender and such Holder shall be entitled to convert or exchange such Security on such date, in which case such conversion or
exchange shall be deemed to be effected immediately prior to the close of business on such date) and at such time the rights of the Holder of such Security as such Security Holder shall cease and the person or persons in whose name or names any
securities or property (including securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of
its securities) of the Company shall be issuable or deliverable upon such conversion or exchange shall be deemed to have become the Holder or Holders of record of the shares represented thereby. Except as set forth above and subject to the final
paragraph of Section 307, no payment or adjustment shall be made upon any conversion or exchange on account of any interest accrued on the Securities surrendered for conversion or exchange or on account of any interest or dividends on the
securities or property (including securities of other issuers, provided that such securities are registered under Section 12 of the Exchange Act and such issuer is then eligible to use Form S-3 (or any successor form) for a primary offering of
its securities) of the Company issued or delivered upon such conversion or exchange. 
 In the case of any Security which is
converted or exchanged in part only, upon such conversion or exchange the Company shall execute and the Trustee shall authenticate and deliver to or on the order of the Holder thereof, at the expense of the Company, a new Security or Securities of
the same series, of authorized denominations, in aggregate principal amount equal to the unconverted or unexchanged portion of such Security. 
 SECTION 1611 Effect Of Consolidation Or Merger On Conversion Privilege. 
 In case of any consolidation of the
Company with, or merger of the Company into or with any other Person, or in case of any sale of all or substantially all of the assets of the Company, the Company or the Person formed by such consolidation or the Person into which the Company shall
have been merged or the Person which shall have acquired such assets, as the case may be, shall execute and deliver to the Trustee a supplemental indenture providing that the Holder of each Security then outstanding of any series that is convertible
into common stock of the Company shall have the right, which right shall be the exclusive conversion right thereafter available to said Holder (until the expiration of the conversion right of such Security), to convert such Security into the kind
and amount of shares of stock or other securities or property (including cash) receivable upon such consolidation, merger or sale by a holder of the number of shares of common stock of the Company into which such Security might have been converted
immediately prior to such consolidation, merger or sale, subject to compliance with the other provisions of this Indenture, such Security and such supplemental indenture. Such supplemental indenture shall provide for adjustments which shall be as
nearly equivalent as may be practicable to the adjustments

  

 74 

 
provided for in such Security. The above provisions of this Section shall similarly apply to successive consolidations, mergers or sales. It is expressly agreed and understood that anything in
this Indenture to the contrary notwithstanding, if, pursuant to such merger, consolidation or sale, holders of outstanding shares of common stock of the Company do not receive shares of common stock of the surviving corporation but receive other
securities, cash or other property or any combination thereof, Holders of Securities shall not have the right to thereafter convert their Securities into common stock of the surviving corporation or the corporation which shall have acquired such
assets, but rather, shall have the right upon such conversion to receive the other securities, cash or other property receivable by a holder of the number of shares of common stock of the Company into which the Securities held by such holder might
have been converted immediately prior to such consolidation, merger or sale, all as more fully provided in the first sentence of this Section 1611. Anything in this Section 1611 to the contrary notwithstanding, the provisions of this
Section 1611 shall not apply to a merger or consolidation of another corporation with or into the Company pursuant to which both of the following conditions are applicable: (i) the Company is the surviving corporation and (ii) the
outstanding shares of common stock of the Company are not changed or converted into any other securities or property (including cash) or changed in number or character or reclassified pursuant to the terms of such merger or consolidation.

 As evidence of the kind and amount of shares of stock or other securities or property (including cash) into which Securities
may properly be convertible after any such consolidation, merger or sale, or as to the appropriate adjustments of the conversion prices applicable with respect thereto, the Trustee shall be furnished with and may accept the certificate or opinion of
an independent certified public accountant with respect thereto; and, in the absence of bad faith on the part of the Trustee, the Trustee may conclusively rely thereon, and shall not be responsible or accountable to any Holder of Securities for any
provision in conformity therewith or approved by such independent certified accountant which may be contained in said supplemental indenture. 
 This Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same
Indenture. 
  

 75 

 IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed by
their respective officers hereunto duly authorized, all as of the day and year first above written. 
  

			
	UNUM GROUP
		
	By:	 	/s/ Kevin A. McMahon
	Name:	 	Kevin A. McMahon
	Title:	 	Vice President and Corporate Treasurer

  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS TRUSTEE
		
	By:	 	/s/ Stefan Victory
	Name:	 	Stefan Victory
	Title:	 	Vice President

  

 76 

 EXHIBIT A-1 
 FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED 
 TO RECEIVE BEARER SECURITY OR TO OBTAIN INTEREST 
 PAYABLE PRIOR TO THE EXCHANGE DATE 
 CERTIFICATE 
 [Insert title or sufficient description of Securities to be delivered] 
 This is to certify that, as of the date
hereof, and except as set forth below, the above-captioned Securities held by you for our account (i) are owned by person(s) that are not citizens or residents of the United States, domestic companies, or any estate or trust the income of which
is subject to United States federal income taxation regardless of its source (“United States person(s)”), (ii) are owned by United States person(s) that are (a) foreign branches of United States financial institutions (financial
institutions, as defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “financial institutions”) purchasing for their own account or for resale, or (b) United States person(s) who
acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial institutions on the date hereof (and in either case (a) or (b), each such United States
financial institution hereby agrees, on its own behalf or through its agent, that you may advise Unum Group or its agent that such financial institution will comply with the requirements of Section 165(j)(3)(A), (B) or (C) of the
United States Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) are owned by United States or foreign financial institution(s) for purposes of resale during the restricted period (as defined in United States
Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, in addition, if the owner is a United States or foreign financial institution described in clause (iii) above (whether or not also described in clause (i) or (ii)), this is to
further certify that such financial institution has not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions. 
 As used herein, “United States” means the United States of America (including the States and the District of Columbia); and
“possessions” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands. 
 We undertake to advise you promptly by tested telex on or prior to the date on which you intend to submit your certification relating to the above- captioned Securities held by you for our account in
accordance with your operating procedures if any applicable statement herein is not correct on such date, and in the absence of any such notification it may be assumed that this certification applies as of such date. 
 This certificate excepts and does not relate to [U.S. $            ] of such
interest in the above-captioned Securities in respect of which we are not able to certify and as to which we understand an exchange for an interest in a permanent global Security or an exchange for and delivery of definitive Securities (or, if
relevant, collection of any interest) cannot be made until we do so certify. 
 We understand that this certificate may be
required in connection with certain tax legislation in the United States. If administrative or legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings. 
 Dated:
            , 200 
  

 1 

 [To be dated no earlier than the 15th day prior to (i) the Exchange Date or
(ii) the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable] 
 [Name of Person Making
Certification] 
 (Authorized Signatory) Name: Title: 
  

 2 

 EXHIBIT A-2 
 FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR 
 AND
CLEARSTREAM BANKING, S.A. IN CONNECTION WITH THE EXCHANGE 
 OF A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO

 OBTAIN INTEREST PAYABLE PRIOR TO THE EXCHANGE DATE 
 CERTIFICATE 
 [Insert title or sufficient description
of Securities to be delivered] 
 This is to certify that, based solely on written certifications that we have received in
writing, by tested telex or by electronic transmission from each of the persons appearing in our records as persons entitled to a portion of the principal amount set forth below (our “Member Organizations”) substantially in the form
attached hereto, as of the date hereof, [U.S. $            ] principal amount of the above-captioned Securities (i) is owned by person(s) that are not citizens or residents of the
United States, domestic companies, domestic corporations or any estate or trust the income of which is subject to United States Federal income taxation regardless of its source (“United States person(s)”), (ii) is owned by United
States person(s) that are (a) foreign branches of United States financial institutions (financial institutions, as defined in U.S. Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “financial institutions”)
purchasing for their own account or for resale, or (b) United States person(s) who acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial
institutions on the date hereof (and in either case (a) or (b), each such financial institution has agreed, on its own behalf or through its agent, that we may advise Unum Group or its agent that such financial institution will comply with the
requirements of Section 165(j)(3)(A), (B) or (C) of the Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) is owned by United States or foreign financial institution(s) for purposes of resale
during the restricted period (as defined in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, to the further effect, that financial institutions described in clause (iii) above (whether or not also described in
clause (i) or (ii)) have certified that they have not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions. 
 As used herein, “United States” means the United States of America (including the States and the District of Columbia); and its
“possessions” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands. 
 We further certify that (i) we are not making available herewith for exchange (or, if relevant, collection of any interest) any portion of the temporary global Security representing the above
captioned Securities excepted in the above-referenced certificates of Member Organizations and (ii) as of the date hereof we have not received any notification from any of our Member Organizations to the effect that the statements made by such
Member Organizations with respect to any portion of the part submitted herewith for exchange (or, if relevant, collection of any interest) are no longer true and cannot be relied upon as of the date hereof. 
 We understand that this certification is required in connection with certain tax legislation in the United States. If administrative or
legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce this certificate or a copy thereof to any interested party in such proceedings. 
  

 Exhibit A-2-1 

 Dated: _________________, 200__. 
 [To be dated no earlier than the Exchange Date or the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable.]

  

			
	EUROCLEAR BANK, S.A./N.V., AS OPERATOR OF THE EUROCLEAR SYSTEM [CLEARSTREAM BANKING, S.A.
		
	By:	 	 

  

 Exhibit A-2-2 

 EXHIBIT B 
 FORM OF 
 EXCHANGE RATE OFFICER’S CERTIFICATE 
 The undersigned, __________________________, an officer of Unum Group, a Delaware corporation (the “Company”), in accordance with
the terms of the Indenture, dated as of _________________, 2008, between the Company and ___________________________, as Trustee (the “Indenture”), and pursuant to authority delegated by the Board of Directors of the Company to the
undersigned in resolutions duly adopted by such Board at a meeting duly called and held on ______________, _____ (the “Resolutions”), does hereby certify that: 
 1. The [exchange rate] [applicable bid quotation] in respect of the payment to be made on [insert date] by the Company with
respect to its [insert title of security] is ________________. 
 2. The amount payable on [insert date] in
respect of the Company’s [insert title of security] is ___________ per [$1,000] principal amount of such security. 
 IN
WITNESS WHEREOF, I have hereunto signed by name. 
 Dated:____________________________ 
  

			
	By:	 	 
	Name:	 	 
	Title:	 	 

  

 Exhibit B-1

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