Document:

First Supplemental Indenture dated as of July 28, 2006

 Exhibit 4.2 
 FIRST SUPPLEMENTAL INDENTURE dated as of July 28, 2006 (this “Supplemental Indenture”), to the Indenture dated as of June 26, 2006 (the “Original Indenture” as amended by the Supplemental
Indenture, the “Indenture”), between Olin Corporation, a corporation duly organized and existing under the laws of the Commonwealth of Virginia (the “Company”), and JPMorgan Chase Bank, N.A., a national banking association duly
incorporated and existing under the laws of the United States, as trustee (the “Trustee”). 
 WHEREAS, the Company and the Trustee
entered into the Original Indenture providing for the creation, execution, authentication and delivery of certain Debt Securities of the Company; 
 WHEREAS, Section 10.01(f) of the Original Indenture permits the Company, when authorized by a resolution of the Board of Directors of the Company, and the Trustee, from time to time and at any time, to enter into one or more indentures
supplemental to the Original Indenture for the purpose of establishing the form of Debt Securities, as provided in Section 2.01 of the Original Indenture, providing for the issuance of any additional series of Debt Securities as provided in
Section 2.03 of the Original Indenture and to set forth the terms thereof; 
 WHEREAS, the Company proposes in and by this Supplemental
Indenture to supplement and amend the Original Indenture in certain respects to establish a series of Debt Securities issued pursuant to the Indenture designated as the 6.75% Senior Notes due 2016 (the “Notes”). The Notes, including any
Additional Notes (as defined herein) issued after the Issue Date, shall constitute one series of Debt Securities for purposes of the Indenture; 
 WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental Indenture for the purposes set forth in Section 10.01(f) of the Original Indenture as referred to above; and 
 WHEREAS, any and all other action necessary to constitute this Supplemental Indenture a valid, binding and legal instrument of the Company have been
taken and performed by the Company, and the execution and delivery of this Supplemental Indenture have in all respects been duly authorized by the Company, and the Company, in the exercise of legal right and power in it vested, executes this
Supplemental Indenture. 
 NOW THEREFORE, the Company and the Trustee hereby agree that the following sections of this Supplemental Indenture
hereby supplement and amend the 

 Original Indenture with respect to that series of Debt Securities which consists of the Notes as provided below:

 SECTION 1. Definitions. (a) Capitalized terms used herein and not defined herein have the meanings ascribed to such terms in
the Indenture. 
 (b) Section 1.01 of Article One of the Original Indenture is hereby supplemented, solely with respect to that series
of Debt Securities which consists of the Notes, to add the following definitions: 
 “Additional Notes” means Debt Securities
designated as 6.75% Senior Notes due 2016 issued from time to time after the Issue Date under the terms of this Indenture (other than pursuant to Section 2.07, 2.08, 2.09, 3.02 or 10.04 of this Indenture). 
 “Applicable Procedures” means, with respect to any transfer or exchange of or for beneficiary interests in any Global Note, the rules and
procedures of the Depositary that apply to such transfer or exchange. 
 “Below Investment Grade Rating Event” means the Notes are
rated below Investment Grade by both Rating Agencies on any date from the date of the public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following public notice of the occurrence of a Change
of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by either of the Rating Agencies). The Company will promptly give notice to the Trustee of any Below
Investment Grade Rating Event. 
 “Board of Directors” means, for the purposes of the definitions of “Change of Control”
and “Continuing Directors”, the Board of Directors of the Company. 
 “Capital Stock” means, for the purposes of the
definition of “Change of Control”, any and all shares, interests, participations or other equivalents (however designated) of capital stock of a corporation, any and all equivalent ownership interests in a person (other than a corporation)
and any and all warrants or options to purchase any of the foregoing. 
 “Certificated Note” means a certificated Note registered
in the name of the Holder thereof and issued in accordance with Section 2.07 of the Indenture substantially in the form of Exhibit A to this Supplemental Indenture except that such Note shall not bear the Global Note Legend and shall not
have the “Schedule of Increases or Decreases in Global Note” attached thereto. 
  

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 “Change of Control” means the occurrence of any of the following: 
  

	 	1)	the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or
substantially all of the Company’s properties or assets and those of the Company’s Subsidiaries, taken as a whole, to any “person” (as that term is used in Section 13(d)(3) of the Securities Exchange Act of 1934), other than
the Company or one of the Company’s wholly owned Subsidiaries; 

  

	 	2)	the adoption of a plan relating to the Company’s liquidation or dissolution; 

  

	 	3)	the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” (as that term is used in
Section 13(d)(3) of the Securities Exchange Act of 1934), other than the Company or one of the Company’s wholly owned Subsidiaries, becomes the beneficial owner, directly or indirectly, of more than 50% of the Company’s Voting Stock,
measured by voting power rather than number of shares; or 

  

	 	4)	the first day on which a majority of the members of the Board of Directors are not Continuing Directors. 

 Notwithstanding the foregoing, a transaction effected to create a holding company for the Company will not be deemed to involve a Change of Control if
(1) pursuant to such transaction the Company becomes a wholly owned Subsidiary of such holding company and (2) the holders of the Voting Stock of such holding company immediately following such transaction are the same as the holders of
the Company’s Voting Stock immediately prior to such transaction. The Company will promptly give written notice to the Trustee of any Change of Control. 
 “Change of Control Repurchase Event” means the occurrence of a Change of Control and a Below Investment Grade Rating Event. The Company will promptly give written notice to the Trustee of any Change of
Control Repurchase Event. 
 “Code” means the Internal Revenue Code of 1986, as amended. 
 “Continuing Directors” means, as of any date of determination, any member of the Board of Directors who: 
  

	 	1)	was a member of such Board of Directors on the first date that any of the Notes were issued; or 

  

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	 	2)	was nominated for election or elected to the Board of Directors with the approval of a majority of the Continuing Directors who were members of the Board at the time of such
nomination or election. 

 “Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent
under any successor rating categories of Moody’s) and BBB- or better by S&P (or its equivalent under any successor rating categories of S&P) (or, in each case, if such Rating Agency ceases to rate the Notes for reasons outside of the
Company’s control, the equivalent investment grade credit rating from any Rating Agency selected by the Company as a replacement Rating Agency). 
 “Issue Date” means July 28, 2006. 
 “Moody’s” means Moody’s Investors
Service, Inc. 
 “Notes” means the series of 6.75% Senior Notes due 2016 provided for pursuant to this Supplemental Indenture.

 “Rating Agency” means: 
  

	 	1)	each of Moody’s and S&P; and 

  

	 	2)	if either of Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a
“nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Securities Exchange Act of 1934 selected by the Company as a replacement agency for Moody’s or S&P, or both, as
the case may be. 

 “S&P” means Standard & Poor’s Ratings Services, a division of McGraw-Hill, Inc.

 “Subsidiary” means, for the purposes of the definition of “Change of Control”, any corporation, association or other
business entity of which more than 50%, by number of votes, of the Voting Stock is at the time directly or indirectly owned by the Company. 
 “Voting Stock” of a person means, for the purposes of the definitions of “Change of Control” and “Subsidiary”, all classes of Capital Stock of such person then outstanding and normally entitled (without regard
to the occurrence of any contingency) to vote in the election of directors (or persons performing similar functions). 
  

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 SECTION 2. Creation of Series of Securities. Pursuant to Section 2.03 of the Original
Indenture, there is hereby created a new series of Debt Securities designated as the “6.75% Senior Notes due 2016” in an unlimited aggregate principal amount. On the Issue Date, the Company will issue $124,983,000 in aggregate principal
amount of the Notes. 
 SECTION 3. Terms of the Notes. Pursuant to Section 2.01 of Article Two of the Original Indenture the
Notes shall be substantially in the form annexed hereto as Exhibit A. The terms and provisions contained in the form of the Notes annexed hereto as Exhibit A shall constitute, and are hereby expressly made, a part of this Supplemental
Indenture. The Company shall be entitled to issue Additional Notes under this Supplemental Indenture which shall have identical terms as the Notes issued on the Issue Date, other than with respect to the date of issuance and issue price. The Notes
issued on the Issue Date and any Additional Notes shall be treated as a single class for all purposes under this Supplemental Indenture and the Original Indenture. The Notes issued on the Issue Date will be represented by one or more Global Notes in
the name of Cede & Co., as a nominee of the Depositary, The Depository Trust Company. The Trustee, as paying agent, will not be responsible for determining the appropriate rate of interest of the Notes at any time. Until the Company
provides the Trustee with written notice of a Registration Default (as defined in the Registration Rights Agreement), the Trustee will not be deemed to have notice of any Registration Default. 
 Each Note will bear a legend substantially to the following effect unless the Company determines otherwise in accordance with applicable law: 

“THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND THESE
SECURITIES MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OR OUTSIDE THE UNITED STATES IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT AND,
IN EACH CASE, IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER JURISDICTION.” 
 With
respect to any Additional Notes, in addition to any other requirements set forth in the Original Indenture, the Company shall set forth in an Officers’ Certificate, a copy of which shall be delivered to the Trustee, the following information:

 (1) the aggregate principal amount of such Additional Notes to be authenticated and delivered pursuant to this Supplemental Indenture;

  

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 (2) the issue price, the issue date and the CUSIP number of such Additional Notes; provided,
however, that no Additional Notes may be issued at a price that would cause such Additional Notes to have “original issue discount” within the meaning of Section 1273 of the Code; and 
 (3) whether such Additional Notes will be issued as Global Notes or as Certificated Notes and whether and to what extent the Additional Notes will contain
additional legends. 
 SECTION 4. Exchange of Global Notes for Certificated Notes. Section 2.15 of Article Two of the Original
Indenture is hereby supplemented, solely with respect to that series of Debt Securities which consists of the Notes, to add the following provisions: 
 (a) Transfers of Interests in Global Notes for Certificated Notes. A Global Note may not be transferred as a whole except by the Depositary to a nominee of the Depositary or by the Depositary to a successor
Depositary or a nominee of such successor Depositary. Global Notes shall be exchanged by the Company for Certificated Notes if (i) the Depositary (a) notifies the Company that it is unwilling or unable to continue as depositary for the
Global Notes or (b) has ceased to be a clearing agency registered under the Securities Exchange Act of 1934 and, in each case, a successor depositary is not appointed; (ii) the Company, at its option, notifies the Trustee in writing that
it elects to cause the issuance of the Certificated Notes; or (iii) there has occurred and is continuing a Default or an Event of Default with respect to the Notes entitling the Holder to accelerate the maturity of the Notes. Upon the
occurrence of either of the preceding events in (i), (ii) or (iii) above, Certificated Notes shall be issued in such names as the Depositary shall instruct the Trustee. Global Notes also may be exchanged or replaced, in whole or in
part, as provided in Sections 2.08 and 2.09 of the Original Indenture. Every Note authenticated and delivered in exchange for, or in lieu of, a Global Note or any portion thereof, pursuant to the first sentence of this paragraph (a) or
Section 2.08 or 2.09 of the Original Indenture, shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note may not be exchanged for another Note other than as provided in this paragraph (a). 

(b) Legends. Each Global Note issued under this Supplemental Indenture shall bear a legend in substantially the form as specified in
Section 2.15 of the Original Indenture and any other appropriate legends specified in an Officers’ Certificate. 
 (c)
Cancellation and/or Adjustment of Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Certificated Notes or a particular Global Note has been redeemed, repurchased or canceled in whole
and not in part, each such Global Note will be returned to or retained and canceled by the Trustee in accordance with Section 2.10 of the Original Indenture. At any time prior to such cancellation, if any beneficial interest in a Global Note is
exchanged for or transferred to 

  

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a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Certificated Notes, the principal amount of Notes
represented by such Global Note shall be reduced accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being
exchanged for or transferred to a Person who shall take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note shall be increased accordingly and an endorsement shall be made on such Global Note by the
Trustee or by the Depositary at the direction of the Trustee to reflect such increase. 
 SECTION 5. Additional Covenant of the
Company. The Original Indenture is hereby supplemented, solely with respect to that series of Debt Securities which consists of the Notes, to add the following additional covenant with respect to the Notes: 
 SECTION 5.01. Change of Control Repurchase Event. If a Change of Control Repurchase Event occurs, unless the Company has exercised its right to
redeem the Notes, the Company will make an offer to each holder of Notes to repurchase all or any part (in multiples of $1,000 principal amount) of that holder’s Notes at a repurchase price in cash equal to 101% of the aggregate principal
amount of Notes repurchased plus any accrued and unpaid interest on the Notes repurchased to the date of purchase. Within 30 days following any Change of Control Repurchase Event or, at the Company’s option, prior to any Change of Control,
but after the public announcement of the Change of Control, the Company will mail a notice to each holder describing the transaction or transactions that constitute or may constitute the Change of Control Repurchase Event and offering to repurchase
Notes on the payment date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed. The notice shall, if mailed prior to the date of consummation of the Change of
Control, state that the offer to purchase is conditioned on the Change of Control Repurchase Event occurring on or prior to the payment date specified in the notice. The Company will comply with the requirements of Rule 14e-1 under the
Securities Exchange Act of 1934 and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Repurchase Event. To
the extent that the provisions of any securities laws or regulations conflict with the Change of Control Repurchase Event provisions of the Notes, the Company will comply with the applicable securities laws and regulations and will not be deemed to
have breached its obligations under the Change of Control Repurchase Event provisions of the Notes by virtue of such conflict. 
  

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 On the Change of Control Repurchase Event payment date, the Company will, to the extent lawful:

  

	 	1)	accept for payment all Notes or portions of Notes properly tendered pursuant to the Company’s offer; 

  

	 	2)	deposit with the paying agent an amount equal to the aggregate purchase price in respect of all Notes or portions of Notes properly tendered; and 

  

	 	3)	deliver or cause to be delivered to the Trustee the Notes properly accepted, together with an Officers’ Certificate stating the aggregate principal amount of Notes being
purchased by the Company. 

 The paying agent will promptly mail to each holder of Notes properly tendered the purchase price
for the Notes, and the Company will execute and direct the Trustee to promptly authenticate and mail (or cause to be transferred by book-entry) to each holder a new Note equal in principal amount to any unpurchased portion of any Notes surrendered;
provided that each new Note will be in a principal amount of $1,000 or an integral multiple of $1,000. 
 The Company will not be
required to make an offer to repurchase the Notes upon a Change of Control Repurchase Event if a third party makes an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company and such third
party purchases all Notes properly tendered and not withdrawn under its offer. 
 SECTION 6. The Supplemental Indenture. The Original
Indenture, as amended and modified by this Supplemental Indenture, hereby is in all respects ratified, confirmed and approved. This Supplemental Indenture shall be construed in connection with and as part of the Original Indenture. 
 SECTION 7. Counterparts. This Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original; but such
counterparts shall together constitute but one and the same instrument. 
 SECTION 8. Recitals. The recitals contained herein shall be
taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representation as to the validity or sufficiency of this Supplemental Indenture. 
 SECTION 9. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof. 
 SECTION 10. Indenture and Debt Securities To Be Construed in Accordance with the Laws of the State of New York. This Supplemental Indenture
and 

  

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each Note shall be deemed to be a New York contract and for all purposes shall be construed in accordance with the laws of said state. 
 The Trustee hereby accepts the trusts in this Supplemental Indenture declared and provided, upon the terms and conditions hereinabove set forth.

  

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 IN WITNESS WHEREOF, OLIN CORPORATION has caused this First Supplemental Indenture to be duly signed by
its Vice President duly authorized; and JPMORGAN CHASE BANK, N.A. has caused this First Supplemental Indenture to be duly signed by one of its Vice Presidents or Assistant Vice Presidents thereunto duly authorized. 
  

			
	 OLIN CORPORATION,

		
	 By
	 	 /s/ Stephen C. Curley
  

		 	 Name: Stephen C. Curley

		 	 Title:   Vice President and Treasurer

	
	 JPMORGAN CHASE BANK, N.A.,

		
	 By
	 	 /s/ Joseph Morand
  

		 	 Name: Joseph Morand

		 	 Title:   Authorized Signer

 EXHIBIT A 
 [FORM OF FACE OF NOTE] 
 [Global Notes Legend] 
 UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR THE INDIVIDUAL NOTES REPRESENTED HEREBY, THIS GLOBAL NOTE MAY NOT BE TRANSFERRED EXCEPT AS A
WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR
DEPOSITARY.1 
 THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND THESE SECURITIES MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN
EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OR OUTSIDE THE UNITED STATES IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT AND, IN EACH CASE, IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED
STATES OR ANY OTHER JURISDICTION. 
 [Insert other appropriate legends] 
  

	1	Legend only required for Global Notes 

 OLIN CORPORATION 
 6.75% Senior Notes due 2016 
  

			
		  	CUSIP No. [    ]
		  	ISIN No. [    ]
	 No. [    ]
	  	$ [    ]

 OLIN CORPORATION, a Virginia corporation (the “Company”), promises to pay to
[                                        
                ], or registered assigns, the principal sum of
[                                        
                ] Dollars ($[    ]) on June 15, 2016. 
 Interest Payment Dates: June 15 and December 15. 
 Record Dates: June 1 and December 1.

 Additional provisions of this Note are set forth on the other side of this Security. 
 Dated:             

 IN WITNESS WHEREOF, the Company has caused this Note to be signed manually or by facsimile by its duly
authorized officers. 
  

			
	OLIN CORPORATION
		
	 By:
	 	  

		 	 Name:

		 	 Title:

		
	 By:
	 	  

		 	 Name:

		 	 Title:

 TRUSTEE’S CERTIFICATE OF 
 AUTHENTICATION 
 This is one
of the Debt Securities of the series designated therein referred to in the within mentioned Indenture. 
  

			
	JPMORGAN CHASE BANK, N.A, as
Trustee,
		
	 By:
	 	  

		 	 Name:

		 	 Title:

 [FORM OF REVERSE SIDE OF NOTE] 
 6.75% Senior Note Due 2016 
  

	1.	Interest 

 Olin Corporation, a Virginia corporation
(such corporation, and its successors and assigns under the Indenture hereinafter referred to, being herein called the “Issuer” or the “Company”), promises to pay interest on the principal amount of this Note at the rate per
annum shown above; provided, however, that if a Registration Default (as defined in the Registration Rights Agreement dated as of July 28, 2006 among the Company, Banc of America Securities LLC, Citigroup Global Markets Inc. and Wachovia
Capital Markets, LLC) occurs, additional interest will accrue on this Note at a rate of 0.25% per annum (increasing by an additional 0.25% per annum after 90 days up to a maximum additional interest rate of 0.50%) from and including the
date on which any such Registration Default shall occur to but excluding the date on which all Registration Defaults have been cured. The Company will pay interest semiannually on June 15 and December 15 of each year, commencing
December 15, 2006. Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from July 28, 2006. Interest will be computed on the basis of a 360-day year of twelve 30-day
months. 
  

	2.	Method of Payment 

 The Company will pay interest on
the Notes (except defaulted interest) to the Persons who are registered Holders of Notes at the close of business on the June 1 and December 1 next preceding the interest payment date even if Notes are canceled after the record date and on
or before the interest payment date. Holders must surrender Notes to a paying agent to collect principal payments. The Company will pay principal and interest in money of the United States that at the time of payment is legal tender for payment of
public and private debts. Payments in respect of the Notes represented by a Global Note (including principal, premium and interest) will be made by wire transfer of immediately available funds to the accounts specified by The Depository Trust
Company. The Company will make all payments in respect of a Certificated Note (including principal, premium and interest) by mailing a check to the registered address of each Holder thereof; provided, however, that payments on a Certificated Note
will be made by wire transfer to a U.S. dollar account maintained by the payee with a bank in the United States if such Holder elects payment by wire transfer by giving written notice to the Trustee or the paying agent to such effect designating
such account no later than 30 days immediately preceding the relevant due date for payment (or such other date as the Trustee may accept in its discretion). 
  

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	3.	Indenture 

 This Note is one of a duly authorized
issue of debentures, notes, bonds or other evidences of indebtedness of the Company (the “Debt Securities”) of the series hereinafter specified, all issued or to be issued under and pursuant to an indenture dated as of June 26, 2006
(the “Original Indenture”), as amended and supplemented by the First Supplemental Indenture dated as of July 28, 2006 (the “Supplemental Indenture”) (the Original Indenture, as amended by the Supplemental Indenture is herein
called the “Indenture”), duly executed and delivered by the Company to JPMorgan Chase Bank, N.A., as trustee (the “Trustee”), to which the Indenture and all indentures supplemental thereto reference is hereby made for a
description of the rights, limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the holders of the Debt Securities. This Note is subject to all the provisions of the Indenture, some of which are
described herein. This Note is one of a series of Debt Securities designated as the 6.75% Senior Notes due 2016 of the Company (the “Notes”), initially in an aggregate principal amount of $124,983,000 on the Issue Date. Terms used herein
which are defined in the Indenture shall have the respective meanings assigned thereto in the Indenture. 
  

	4.	Optional Redemption 

 Except as set forth below, the
Company shall not be entitled to redeem the Notes. 
 The Notes will be redeemable as a whole at any time or in part from time to time, at
the option of the Company, on at least 30 but not more than 60 days prior notice (a “Redemption Date”), at a redemption price equal to the greater of (i) 100% of the principal amount of this Note and (ii) the present value of the
Remaining Scheduled Payments on the Notes being redeemed on 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 Treasury Rate (as defined herein) plus 30
basis points, plus, in each case, accrued and unpaid interest on this Note to the Redemption Date (the “Redemption Price”). 
 “Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of this Note 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 this Note. “Independent Investment Banker” means Banc of America
Securities LLC and/or Citigroup Global Markets Inc. 
  

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 “Comparable Treasury Price” means, with respect to any Redemption Date, (i) the average of
Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Company obtains fewer than three such Reference Treasury Dealer Quotations, the
average of all such quotations. 
 “Reference Treasury Dealer” means Banc of America Securities LLC and Citigroup Global Markets
Inc. and, at the Company’s option, other primary U.S. Government Securities dealers in New York City selected by the Company. 
 “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Company, of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) quoted in writing to the Company by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date. 
 “Remaining Scheduled Payments” means, with respect to this Note, the remaining scheduled payments of the principal and interest thereon that
would be due after the related Redemption Date but for such redemption; provided, however, that, if such Redemption Date is not an Interest Payment Date with respect to this Note, the amount of the next succeeding scheduled interest payment thereon
will be reduced by the amount of interest accrued thereon to such Redemption Date. 
 “Treasury Rate” means, with respect to any
Redemption Date, the rate per year equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expresses as a percentage of its principal amount) equal to the Comparable
Treasury Price for such Redemption Date. 
 Unless the Company defaults in payment of the Redemption Price, on and after the Redemption Date
interest will cease to accrue on the Notes or portions thereof called for redemption and those Notes will cease to be outstanding. 
  

	5.	Events of Default 

 In case an Event of Default with
respect to the Notes shall have occurred and be continuing, the principal hereof may be declared, and upon such declaration shall become, due and payable, in the manner, with the effect and subject to the conditions provided in the Indenture.

  

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	6.	Supplemental Indenture 

 The Indenture contains
provisions permitting the Company and the Trustee, with the consent of the Holders of not less than a majority in aggregate principal amount of the Debt Securities at the time Outstanding of all series to be affected (voting as one class), evidenced
as in the Indenture provided, to execute supplemental indentures adding any provisions to or changing in any manner or eliminating any of the provisions of the Indenture or of any supplemental indenture or modifying in any manner the rights of the
Holders of the Debt Securities of each such series; provided, however, that no such supplemental indenture shall (i) extend the fixed maturity of any Debt Securities, or reduce the principal amount thereof or any premium thereon
or the amount of any Sinking Fund Payment, or reduce the rate or extend the time of payment of interest thereon, or reduce any premium payable upon redemption thereof, without the consent of the Holder of each Debt Security so affected, or
(ii) reduce the aforesaid percentage of Debt Securities the consent of the Holders of which is required for any such supplemental indenture, without the consent of the Holders of each Debt Security so affected. It is also provided in the
Indenture that, with respect to certain defaults or Events of Default regarding the Debt Securities of any series, prior to any declaration accelerating the maturity of such Debt Securities, the Holders of a majority in aggregate principal amount
Outstanding of the Debt Securities of such series (or, in the case of certain defaults or Events of Default, all the Debt Securities) may on behalf of the Holders of all the Debt Securities of such series (or all of the Debt Securities, as the case
may be) waive any such past default or Event of Default and its consequences. The preceding sentence shall not, however, apply to a default in the payment of the principal of, premium, if any, or interest, if any, on any of the Debt Securities. Any
such consent or waiver by the Holder of this Note (unless revoked as provided in the Indenture) shall be conclusive and binding upon such Holder and upon all future Holders and owners of this Note and any Notes which may be issued in exchange or
substitution herefor, irrespective of whether or not any notation thereof is made upon this Note or such other Notes. 
  

	7.	Denominations; Exchange 

 The Notes are issuable in
registered form without coupons in denominations of $1,000 and any integral multiple of $1,000. At the office or agency of the Company in the Borough of Manhattan, The City of New York, and in the manner and subject to the limitations provided in
the Indenture, but without the payment of any service charge, Notes may be exchanged for a like aggregate principal amount of Notes of other authorized denominations. 
 Upon due presentment for registration of transfer of this Note at the office or agency of the Company in the Borough of Manhattan, The City of New York, a new Note 

  

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or Notes of authorized denominations for an equal aggregate principal amount will be issued to the transferee in exchange therefor, subject to the
limitations provided in the Indenture, without charge except for any tax or other governmental charge imposed in connection therewith. 
  

	8.	Persons Deemed Owners 

 The Company, the Trustee,
any paying agent and any Debt Security registrar may deem and treat the registered Holder hereof as the absolute owner of this Note (whether or not this Note shall be overdue and notwithstanding any notation of ownership or other writing hereon),
for the purpose of receiving payment hereof, or on account hereof, and for all other purposes, and neither the Company nor the Trustee nor any paying agent nor any Debt Security registrar shall be affected by any notice to the contrary. All payments
made to or upon the order of such registered Holder shall, to the extent of the sum of sums paid, effectually satisfy and discharge liability for moneys payable on this Note. 
  

	9.	No Recourse 

 No recourse for the payment of the
principal of, or premium, if any, or interest on this Note, or for any claim based hereon or otherwise in respect thereof, 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, officer or director, 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 the consideration for the issue hereof, expressly waived and released. 
  

	10.	Governing Law 

 This Note shall be deemed to be a
New York contract and for all purposes shall be construed in accordance with the laws of said State. 
  

	11.	Authentication 

 This Note shall not be valid until
an authorized signatory of the Trustee (or an authenticating agent) manually signs the certificate of authentication on the other side of this Note. 
  

 6 

	12.	Abbreviations 

 Customary abbreviations may be used
in the name of a Holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to
Minors Act). 
  

	13.	CUSIP Numbers 

 Pursuant to a recommendation
promulgated by the Committee on Uniform Security Identification Procedures the Company has caused CUSIP numbers to be printed on the Notes and has directed the Trustee to use CUSIP numbers in notices of redemption as a convenience to Holders. No
representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon. 
  

 7 

 ASSIGNMENT FORM 
 To assign this Notes, fill in the form below: 
 I or we assign and transfer this Note to 
 (Print or type assignee’s name, address and zip code) 
 (Insert assignee’s soc. sec. or tax I.D.
No.) 
 and irrevocably appoint                     
agent to transfer this Note on the books of the Company. The agent may substitute another to act for him. 
  

									
	 	 
		 	
	 Date:
	 	  
	 	 Your Signature:
	 	  
	 	
		
	 	 	 

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

 [TO BE ATTACHED TO GLOBAL NOTES] 
 SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE 
 The following increases or
decreases in this Global Note have been made: 
  

									
	 Date of
 Exchange
	 	 Amount of
 decrease in
 Principal
 amount of this
 Global
Note
	 	 Amount of
 increase in
 Principal
 amount of this
 Global
Note
	 	 Principal
 amount of this
 Global Note
 following such
 decrease
or
 increase)
	 	 Signature of
 authorized
 officer of
 Trustee or
 Securities

Custodian

		 		 		 		 	
		 		 		 		 	
		 		 		 		 	
		 		 		 		 	
		 		 		 		 	

 OPTION OF HOLDER TO ELECT PURCHASE 
 If you want to elect to have this Note purchased by the Company pursuant to Section 5.01 of the First Supplemental Indenture, check the box:

  

									
			 		
	 	 		 	  	 		 	 

 If you want to elect to have only part of this Note purchased by the Company pursuant to
Section 5.01 of the First Supplemental Indenture, state the amount in principal amount: $                     
  

							
	 Date:
	 	  
	 	 Your Signature:
	 	  

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

							
				
	 Signature Guarantee:
	 		 	  
	 	
	(Signature must be guaranteed)	 	

 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.Registration Rights Agreement dated July 28, 2006

 Exhibit 4.3 
 OLIN CORPORATION 
 6.75% Notes Due 2016 
 REGISTRATION RIGHTS AGREEMENT 
 New York, New York 
 July 28, 2006 
 BANC OF
AMERICA SECURITIES LLC 
 CITIGROUP GLOBAL MARKETS INC. 
 WACHOVIA CAPITAL MARKETS, LLC 
 as Dealer Managers 
 c/o BANC OF AMERICA SECURITIES LLC 
 9 West 57th Street 
 New York, NY 10019 
 Ladies and Gentlemen: 
 Olin
Corporation, a Virginia corporation (the “Company”), proposes to issue its 6.75% Notes due 2016 (the “New Notes”) as part of an exchange offer (the “Initial Exchange Offer”) for its outstanding 9.125% Notes due 2011
(the “Old Notes”), upon the terms set forth in a Dealer Manager Agreement (the “Dealer Manager Agreement”) dated as of June 26, 2006, among the Company and you as the dealer managers (the “Dealer Managers”),
relating to the Initial Exchange Offer. The New Notes are to be issued under an indenture (the “Indenture”) dated as of June 26, 2006, as amended by the supplemental indenture dated as of July 28, 2006, between the Company and
JPMorgan Chase Bank, N.A., as trustee (the “Trustee”). To induce the Dealer Managers to enter into the Dealer Manager Agreement and to satisfy a condition to your obligations thereunder, the Company agrees with you for your benefit and the
benefit of the holders (each a “Holder” and, together, the “Holders”) from time to time of the New Notes or the Exchange Notes (as hereinafter defined), as follows: 
 1. Definitions. Capitalized terms used herein without definition shall have their respective meanings set forth in the Dealer Manager Agreement. As
used in this Agreement, the following capitalized defined terms shall have the following meanings: 
 “Act” shall mean the
Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder. 
 “Additional
Interest” shall have the meaning set forth in Section 5 hereto. 
 “Affiliate” of any specified person shall mean any
other person that, directly or indirectly, is in control of, is controlled by, or is under common control with, such specified person. For purposes of this definition, control of a person shall mean the power, direct or indirect, to direct or cause
the direction of the management and policies of such person whether 

 
by contract or otherwise; and the terms “controlling” and “controlled” shall have meanings correlative to the foregoing. 
 “Broker-Dealer” shall mean any broker or dealer registered as such under the Exchange Act. 
 “Business Day” shall mean any day other than a Saturday, a Sunday, a legal holiday or a day on which banking institutions or trust companies
are authorized or obligated by law to close in New York City, New York. 
 “Commission” shall mean the Securities and Exchange
Commission. 
 “Dealer Managers” shall have the meaning set forth in the preamble hereto. 
 “Dealer Manager Agreement” shall have the meaning set forth in the preamble hereto. 
 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated
thereunder. 
 “Exchange Notes” shall mean debt securities of the Company identical in all material respects to the New Notes
(except that the cash interest and interest rate step-up provisions and the transfer restrictions shall be modified or eliminated, as appropriate) and to be issued under the Exchange Notes Indenture. 
 “Exchange Notes Indenture” shall mean an indenture between the Company and the Exchange Notes Trustee, identical in all material respects to
the Indenture (except that the cash interest and interest rate step-up provisions and the transfer restrictions shall be modified or eliminated, as appropriate) entered into in connection with the issuance of the Exchange Notes. 
 “Exchange Notes Trustee” shall mean a bank or trust company reasonably satisfactory to the Dealer Managers, as trustee with respect to the
Exchange Notes under the Exchange Notes Indenture. 
 “Exchange Offer Registration Period” shall mean the one-year period following
the consummation of the Registered Exchange Offer, exclusive of any period during which any stop order shall be in effect suspending the effectiveness of the Exchange Offer Registration Statement. 
 “Exchange Offer Registration Statement” shall mean a registration statement of the Company on an appropriate form under the Act with respect to
the Registered Exchange Offer, all amendments and supplements to such registration statement, including post-effective amendments thereto, in each case including the Prospectus contained therein, all exhibits thereto and all material incorporated by
reference therein. 
 “Exchanging Dealer” shall mean any Holder (which may include any Dealer Manager) that is a Broker-Dealer and
elects to exchange for Exchange Notes any New Notes that 

  

 2 

 
it acquired for its own account as a result of market-making activities or other trading activities (but not directly from the Company or any Affiliate of
the Company) for Exchange Notes. 
 “Expiration Date” shall have the meaning set forth in Section 2(c)(ii) hereto. 

“Fee” shall have the meaning set forth in the Dealer Manager Agreement. 
 “Holder” shall have the meaning set forth in the preamble hereto. 
 “Indenture” shall have the meaning set forth in the preamble hereto. 
 “Initial Exchange Offer” shall have the meaning set forth in the preamble hereto. 
 “Issuer Free Writing Prospectus” shall mean an issuer free writing prospectus, as defined in Rule 433 under the Act. 
 “Losses” shall have the meaning set forth in Section 7(d) hereof. 
 “Majority Holders” shall mean, on any date, the Holders of a majority of the aggregate principal amount of the New Notes registered or to be
registered under a Registration Statement. 
 “Managing Underwriters” shall mean the investment banker or investment bankers and
manager or managers that shall administer an underwritten offering, if any, under a Registration Statement. 
 “New Notes” shall
have the meaning set forth in the preamble hereto. 
 “Old Notes” shall have the meaning set forth in the preamble hereto.

 “Prospectus” shall mean the prospectus included in any Registration Statement (including, without limitation, a prospectus that
discloses information previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A under the Act), as amended or supplemented by any prospectus supplement, with respect to the terms of the
offering of any portion of the New Notes or the Exchange Notes covered by such Registration Statement, and all amendments and supplements thereto, including all exhibits thereto and all material incorporated by reference therein. 
 “Registered Exchange Offer” shall mean the proposed offer by the Company to the Holders to issue and deliver to such Holders that are not
prohibited by any law or policy of the Commission from participating in such offer, in exchange for the Old Notes, a like aggregate principal amount of the Exchange Notes. 
 “Registration Statement” shall mean any Exchange Offer Registration Statement or Shelf Registration Statement that covers any of the New Notes
or the Exchange Notes pursuant to the provisions of this Agreement, any amendments and supplements to any such registration statement, including post-effective amendments (in each case including the 

  

 3 

 
Prospectus contained therein), all exhibits thereto and all material incorporated by reference therein. 
 “Settlement Date” shall mean the date on which the Initial Exchange Offer has been consummated. 
 “Shelf Registration” shall mean a registration under the Act effected pursuant to Section 3 hereof. 
 “Shelf Registration Period” has the meaning set forth in Section 3(b) hereof. 
 “Shelf Registration Statement” shall mean a “shelf” registration statement of the Company pursuant to the provisions of
Section 3 hereof which covers some or all of the New Notes, on an appropriate form under Rule 415 under the Act, or any similar rule that may be adopted by the Commission, amendments and supplements to such registration statement,
including (i) post-effective amendments and (ii) any “shelf” registration statement filed prior to the date of this Agreement under which the Company may register resales of the New Notes, in each case including the Prospectus
contained therein, all exhibits thereto and all material incorporated by reference therein. 
 “Trustee” shall have the meaning set
forth in the preamble hereto. 
 “Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended, and the rules and
regulations of the Commission promulgated thereunder. 
 “underwriter” shall mean any underwriter of New Notes in connection with
an offering thereof under a Shelf Registration Statement. 
 2. Registered Exchange Offer. (a) The Company shall prepare and, not
later than 90 days following the Settlement Date (or if such 90th day is not a Business Day, the next succeeding
Business Day), shall file with the Commission the Exchange Offer Registration Statement with respect to the Registered Exchange Offer. The Company shall use its reasonable best efforts to (i) cause the Exchange Offer Registration Statement to
become effective under the Act within 180 days of the Settlement Date (or if such 180th day is not a Business Day,
the next succeeding Business Day) and (ii) consummate the Registered Exchange Offer within 210 days of the Settlement Date (or if such 210th day is not a Business Day, the next succeeding Business Day). 
 (b) Upon the effectiveness
of the Exchange Offer Registration Statement, the Company shall promptly commence the Registered Exchange Offer, it being the objective of such Registered Exchange Offer to enable each Holder electing to exchange New Notes for Exchange Notes
(provided that such Holder is not an Affiliate of the Company, acquires the Exchange Notes in the ordinary course of such Holder’s business, has no arrangements with any person to participate in the distribution of the Exchange Notes and is not
prohibited by any law, rule or policy of the Commission from participating in the Registered Exchange Offer) to trade such Exchange Notes from and after their receipt without any limitations or restrictions under the Act and without material
restrictions under the securities laws of a substantial proportion of the several states of the United States. 
  

 4 

 (c) In connection with the Registered Exchange Offer, the Company shall: 
 (i) mail to each Holder a copy of the Prospectus forming part of the Exchange Offer Registration Statement, together with an appropriate
letter of transmittal and related documents; 
 (ii) keep the Registered Exchange Offer open for not less than 20 Business
Days and not more than 40 Business Days after the date notice thereof is mailed to the Holders (or, in each case, longer if required by applicable law) (the “Expiration Date”); 
 (iii) use its reasonable best efforts to keep the Exchange Offer Registration Statement continuously effective under the Act, supplemented
and amended as required under the Act to ensure that it is available for sales of Exchange Notes by Exchanging Dealers during the Exchange Offer Registration Period; 
 (iv) utilize the services of a depositary for the Registered Exchange Offer with an address in the Borough of Manhattan in New York City,
which may be the Trustee, the Exchange Notes Trustee or an Affiliate of either of them; 
 (v) permit Holders to withdraw
tendered New Notes at any time prior to the close of business, New York time, on the last Business Day on which the Registered Exchange Offer is open; 
 (vi) if requested by the Commission prior to effectiveness of the Exchange Offer Registration Statement, provide a supplemental letter to the Commission (A) stating that the Company is conducting the Registered
Exchange Offer in reliance on the position of the Commission in Exxon Capital Holdings Corporation (pub. avail. May 13, 1988) and Morgan Stanley and Co., Inc. (pub. avail. June 5, 1991), and (B) including a
representation that the Company has not entered into any arrangement or understanding with any person to distribute the Exchange Notes to be received in the Registered Exchange Offer and that, to the best of the Company’s information and
belief, each Holder participating in the Registered Exchange Offer is acquiring the Exchange Notes in the ordinary course of business and has no arrangement or understanding with any person to participate in the distribution of the Exchange Notes;
and 
 (vii) comply in all respects with all applicable laws. 
 (d) As soon as practicable after the close of the Registered Exchange Offer, the Company shall: 
 (i) accept for exchange all New Notes tendered and not validly withdrawn pursuant to the Registered Exchange Offer; 
 (ii) deliver to the Trustee for cancellation in accordance with Section 4(t) all New Notes so accepted for exchange; and 

 

 5 

 (iii) cause the Exchange Notes Trustee promptly to authenticate and deliver to each
Holder of New Notes a principal amount of Exchange Notes equal to the principal amount of the New Notes of such Holder so accepted for exchange. 
 (e) Each Holder hereby acknowledges and agrees that any Broker-Dealer and any such Holder using the Registered Exchange Offer to participate in a distribution of the Exchange Notes (x) could not under Commission policy as in effect on
the date of this Agreement rely on the position of the Commission in Exxon Capital Holdings Corporation (pub. avail. May 13, 1988) and Morgan Stanley and Co., Inc. (pub. avail. June 5, 1991), as interpreted in the
Commission’s letter to Shearman & Sterling dated July 2, 1993 and similar no-action letters, and (y) must comply with the registration and prospectus delivery requirements of the Act in connection with any secondary resale
transaction, and any secondary resale transactions by such Holder must be covered by an effective registration statement containing the selling security holder and plan of distribution information required by Item 507 or 508, as applicable, of
Regulation S-K under the Act if the resales are of Exchange Notes obtained by such Holder in exchange for New Notes acquired by such Holder directly from the Company or one of its Affiliates. Accordingly, each Holder participating in the Registered
Exchange Offer shall be required to represent to the Company that, at the time of the consummation of the Registered Exchange Offer: 
 (i) any Exchange Notes received by such Holder will be acquired in the ordinary course of such Holder’s business; 
 (ii) such Holder will have no arrangement or understanding with any person to participate in the distribution of the New Notes or the Exchange Notes within the meaning of the Act; and 
 (iii) such Holder is not an Affiliate of the Company. 
 3. Shelf Registration. (a) If (i) due to any change in law or applicable interpretations thereof by the Commission’s staff, the Company determines upon advice of its outside counsel that they are
not permitted to effect the Registered Exchange Offer as contemplated by Section 2 hereof; or (ii) for any other reason the Registered Exchange Offer is not consummated within 210 days of the Settlement Date; or (iii) any Holder is
not eligible to participate in the Registered Exchange Offer, the Company shall effect a Shelf Registration Statement in accordance with subsection (b) below. 
 (b) (i) The Company shall as promptly as practicable (but in no event more than 45 days after so required or requested pursuant to this Section 3), file with the Commission or, if permitted by Rule 430B under the
Act, otherwise designate an existing filing with the Commission, and thereafter shall use its reasonable best efforts to cause to be declared effective, within 120 days after so required or requested, under the Act a Shelf Registration Statement
relating to the offer and sale of the New Notes by the Holders thereof from time to time in accordance with the methods of distribution elected by such Holders and set forth in such Shelf Registration Statement; provided, however, that no Holder
shall be entitled to have the New Notes held by it covered by such Shelf Registration Statement unless such Holder agrees in writing to be bound by all of the provisions of this Agreement applicable to such Holder; and 

  

 6 

 
provided further that with respect to a Shelf Registration Statement required pursuant to clause (ii) of Section 3(a), the consummation of a
Registered Exchange Offer shall relieve the Company of its obligations under this Section 3(b) but only in respect of its obligations under such clause (ii) of Section 3(a). 
 (ii) The Company shall use its reasonable best efforts to keep the Shelf Registration Statement continuously effective, supplemented and
amended as required by the Act, in order to permit the Prospectus forming part thereof to be usable by Holders for a period of two years from the date the Shelf Registration Statement is declared effective by the Commission or such shorter period
that will terminate when all the New Notes or Exchange Notes, as applicable, covered by the Shelf Registration Statement have been sold pursuant to the Shelf Registration Statement or are freely tradeable pursuant to Rule 144(k) of the Securities
Act and the applicable interpretations of the Commission (in any such case, such period being called the “Shelf Registration Period”). The Company shall be deemed not to have used its reasonable best efforts to keep the Shelf Registration
Statement effective during the Shelf Registration Period if it voluntarily takes any action that would result in Holders of New Notes covered thereby not being able to offer and sell such New Notes during the Shelf Registration Period, unless
(A) such action is required by applicable law or (B) such action is taken by the Company in good faith and for valid business reasons (not including avoidance of the Company’s obligations hereunder), including the acquisition or
divestiture of assets, so long as the Company promptly thereafter complies with the requirements of Section 4(k) hereof, if applicable. 
 (iii) The Company shall use its reasonable best efforts to cause the Shelf Registration Statement and the related Prospectus and any amendment or supplement thereto, as of the effective date of the Shelf Registration
Statement or such amendment or supplement, and any Issuer Free Writing Prospectus, as of the date thereof, (A) to comply in all material respects with the applicable requirements of the Act and the rules and regulations of the Commission; and
(B) not to contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein (in the case of a Prospectus and any Issuer Free Writing Prospectus
contained therein, in the light of the circumstances under which they were made) not misleading. 
 4. Additional Registration
Procedures. In connection with any Shelf Registration Statement and, to the extent applicable, any Exchange Offer Registration Statement, the following provisions shall apply. 
 (a) The Company shall: 
 (i)
furnish to you, not less than three Business Days prior to the filing thereof with the Commission, a copy of any Exchange Offer Registration Statement and any Shelf Registration Statement, and each amendment thereof and each amendment or supplement,
if any, to the Prospectus included therein (including all documents incorporated by reference therein after the initial filing) and shall use its reasonable best efforts to reflect in each such document, when so filed with the Commission, such
comments as you reasonably propose; 
  

 7 

 (ii) include the information set forth in Annex A hereto on the facing page of the
Exchange Offer Registration Statement, in Annex B hereto in the forepart of the Exchange Offer Registration Statement in a section setting forth details of the Registered Exchange Offer, in Annex C hereto in the underwriting or plan of distribution
section of the Prospectus contained in the Exchange Offer Registration Statement, and in Annex D hereto in the letter of transmittal delivered pursuant to the Registered Exchange Offer; and 
 (iii) in the case of a Shelf Registration Statement, include the information regarding the Holders that propose to sell New Notes pursuant
to the Shelf Registration Statement as selling security holders. 
 (b) The Company shall ensure that: 
 (i) any Registration Statement and any amendment thereto and any Prospectus forming part thereof and any amendment or supplement thereto
complies in all material respects with the Act and the rules and regulations thereunder; and 
 (ii) any Registration
Statement and any amendment thereto does not, when it becomes effective, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading.

 (c) The Company shall advise you, the Holders of New Notes or Exchange Notes, as the case may be, covered by any Registration Statement
and any Exchanging Dealer under any Exchange Offer Registration Statement that has provided in writing to the Company a telephone or facsimile number and address for notices, and, if requested by you or any such Holder or Exchanging Dealer, shall
confirm such advice in writing (which notice pursuant to clauses (ii)-(v) below shall be accompanied by an instruction to suspend the use of the Prospectus until the Company shall have remedied the basis for such suspension): 
 (i) when a Registration Statement, any post-effective amendment thereto, any Prospectus Supplement or any Issuer Free Writing Prospectus
has been filed with the Commission and when such Registration Statement or any post-effective amendment thereto has become effective; 
 (ii) of any request by the Commission for any amendment or supplement to a Registration Statement, the Prospectus or any Issuer Free Writing Prospectus or for additional information; 
 (iii) of the issuance by the Commission of any stop order suspending the effectiveness of a Registration Statement under the Act or of any
notice that would prevent its use, or the initiation or threatening of any proceedings for that purpose; 
 (iv) of the
receipt by the Company of any notification with respect to the suspension of the qualification of the securities included in any Registration Statement for sale in any jurisdiction or the initiation of any proceeding for such purpose; 
  

 8 

 (v) of the existence of any fact or the happening of any event that makes any statement
of a material fact made in the Registration Statement, any amendment or supplement thereto, the Prospectus, or any document incorporated by reference therein untrue, or that requires the making of any additions to or changes in the Registration
Statement or the Prospectus in order to make the statements therein (in the case of the Prospectus, in the light of the circumstances under which they were made) not misleading; and 
 (vi) when any Issuer Free Writing Prospectus includes information that may conflict with the information contained in the Registration
Statement. 
 Upon receiving notice of the occurrence of any of the events listed in this Section 4(c), each Holder will, upon request
by the Company in writing, immediately discontinue disposition of New Notes or Exchange Notes pursuant to a Registration Statement until such Holder’s receipt of copies of the supplemented or amended Prospectus contemplated by Section 4(k)
or until it is advised in writing by the Company that use of the applicable Prospectus may resume, and, if so directed by the Company, such Holder will deliver to the Company (at the Company’s expense) all copies in such Holder’s
possession, other than permanent file copies, of the Prospectus covering such New Notes or Exchange Notes that was current at the time of receipt of such notice. 
 (d) The Company shall use its reasonable best efforts to prevent the issuance of any order suspending the effectiveness of any Registration Statement or the qualification of the securities therein for sale in any
jurisdiction or any notice that would prevent its use and, if issued, to obtain the withdrawal at the earliest possible time. 
 (e) The
Company shall furnish to each Holder of New Notes covered by any Shelf Registration Statement, without charge, at least one copy of such Shelf Registration Statement and any post-effective amendment thereto, including all material incorporated
therein by reference, and, if the Holder so requests in writing, all exhibits thereto (including exhibits incorporated by reference therein). 
 (f) The Company shall, during the Shelf Registration Period, deliver to you and to each Holder of New Notes covered by any Shelf Registration Statement, and any sales or placement agents or underwriters acting on behalf of such Holder,
without charge, as many copies of the Prospectus (including each preliminary Prospectus) included in such Shelf Registration Statement and any amendment or supplement thereto and any Issuer Free Writing Prospectus, as such person may reasonably
request. The Company consents to the use of the Prospectus or any amendment or supplement thereto and any Issuer Free Writing Prospectus by each of the foregoing in connection with the offering and sale of the New Notes covered by the Prospectus, or
any amendment or supplement thereto, included in the Shelf Registration Statement. 
 (g) The Company shall furnish to each Exchanging Dealer
that so requests, without charge, at least one copy of the Exchange Offer Registration Statement and any post-effective amendment thereto, including all material incorporated by reference therein, and, if the 

  

 9 

 
Exchanging Dealer so requests in writing, all exhibits thereto (including exhibits incorporated by reference therein). 
 (h) The Company shall promptly deliver to you and to each Holder, each Exchanging Dealer and each other person required to deliver a Prospectus during
the Exchange Offer Registration Period, without charge, as many copies of the Prospectus included in such Exchange Offer Registration Statement and any amendment or supplement thereto, and any Issuer Free Writing Prospectus as any such person may
reasonably request. The Company consents to the use of the Prospectus or any amendment or supplement thereto and any Issuer Free Writing Prospectus approved by the Company by you, any Holder, any Exchanging Dealer and any such other person that may
be required to deliver a Prospectus following the Registered Exchange Offer in connection with the offering and sale of the Exchange Notes covered by the Prospectus, or any amendment or supplement thereto, included in the Exchange Offer Registration
Statement. 
 (i) Prior to the Registered Exchange Offer or any other offering of New Notes or Exchange Notes, as the case may be, pursuant
to any Registration Statement, the Company shall arrange, if necessary, for the qualification of the New Notes or the Exchange Notes, as the case may be, for sale under the laws of such jurisdictions as any Holder shall reasonably request and shall
maintain such qualification in effect so long as required; provided that in no event shall the Company be obligated to (i) qualify to do business or as a broker or dealer of securities in any jurisdiction where it is not then so qualified,
(ii) take any action that would subject it to service of process in suits, other than those arising out of the Initial Exchange Offer, the Registered Exchange Offer or any offering pursuant to a Shelf Registration Statement, in any such
jurisdiction where it is not then so subject or (iii) subject itself to taxation in any jurisdiction if it is not already so subject. 
 (j) The Company shall cooperate with the Holders of New Notes or Exchange Notes, as the case may be, to facilitate the timely preparation and delivery of certificates representing New Notes or Exchange Notes to be issued or sold pursuant to
any Registration Statement free of any restrictive legends and in such denominations and registered in such names as Holders may request. 
 (k) Upon the occurrence of any event contemplated by subsections (ii) through (v) of Section 4(c) hereof, the Company shall promptly prepare a post-effective amendment to the applicable Registration Statement or an amendment
or supplement to the related Prospectus, relevant Issuer Free Writing Prospectus or any document incorporated therein by reference or file any other required document so that, as thereafter delivered to the persons entitled to the delivery thereof
pursuant to Section 4(c) hereof, the Prospectus will not include an untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, and to notify each Holder to suspend use of the Prospectus as promptly as practicable after the occurrence of such an event, and each Holder hereby agrees to suspend use of the Prospectus
until the Company has amended or supplemented the Prospectus to correct such misstatement or omission. In such circumstances, the period of effectiveness of the Exchange Offer Registration Statement provided for in Section 2 and the Shelf
Registration Statement provided for in Section 3(b) shall each be extended by the number of days from and 

  

 10 

 
including the date of the giving of a notice of suspension pursuant to Section 4(c) hereof to and including the date the persons entitled to the
delivery thereof pursuant to Section 4(c) hereof shall have received such amended or supplemented Prospectus pursuant to this Section. 
 (l) Not later than the effective date of an Exchange Offer Registration Statement, the Company shall provide a CUSIP number for the Exchange Notes registered under such Exchange Offer Registration Statement and provide the Exchange Notes
Trustee with printed certificates for such Exchange Notes, free of any restrictive legends, in a form eligible for deposit with The Depository Trust Company (“DTC”). 
 (m) The Company shall use its reasonable best efforts to comply with all applicable rules and regulations of the Commission and shall make generally
available to its security holders as soon as practicable after the effective date of the applicable Registration Statement an earnings statement satisfying the provisions of Section 11(a) of the Act and in any event no later than 40 days after
the end of a 12-month period (or 75 days, if such period is a fiscal year) beginning with the first month of the Company’s first fiscal quarter commencing after the effective date of the applicable Registration Statement. 
 (n) The Company shall cause the Indenture or the Exchange Notes Indenture, as the case may be, to be qualified under the Trust Indenture Act in a timely
manner. 
 (o) The Company may require each Holder of New Notes to be sold pursuant to any Shelf Registration Statement to furnish to the
Company such information regarding the Holder and the distribution of such New Notes as the Company may from time to time reasonably require for inclusion in such Shelf Registration Statement. The Company may exclude from such Shelf Registration
Statement the New Notes of any Holder that fails to furnish such information within a reasonable time after receiving such request. 
 (p)
The Company shall, if requested, use its reasonable best efforts to incorporate promptly in a Prospectus supplement or post-effective amendment to a Shelf Registration Statement such information as a Holder may reasonably provide from time to time
to the Company in writing for inclusion in a Prospectus or any Shelf Registration Statement concerning such Holder and the distribution of such Holder’s New Notes and shall make all required filings of such Prospectus supplement or
post-effective amendment as soon as reasonably possible after receipt of notification of the matters to be incorporated in such Prospectus supplement or post-effective amendment. 
 (q) In the case of any Shelf Registration Statement, the Company shall enter into such agreements and take all other appropriate actions (including, if
requested, an underwriting agreement in customary form) in order to expedite or facilitate the registration or the disposition of the New Notes, and in connection therewith, if an underwriting agreement is entered into, cause the same to contain
indemnification provisions and procedures no less favorable than those set forth in Section 7 (or such other provisions and procedures acceptable to the Majority Holders and the Managing Underwriters, if any, with respect to all parties to be
indemnified pursuant to Section 7). 
  

 11 

 (r) In the case of any Shelf Registration Statement, the Company shall: 
 (i) make reasonably available for inspection by the selling Holders of New Notes to be registered thereunder, any underwriter
participating in any disposition pursuant to such Shelf Registration Statement, and any attorney, accountant or other agent retained by the selling Holders or any such underwriter, all relevant financial and other records, pertinent corporate
documents and properties of the Company and its subsidiaries; provided, however, that any information that is designated in writing by the Company, in good faith, as confidential at the time of delivery of such information shall be kept confidential
by the selling Holders or any such underwriter, attorney, accountant or agent, unless such disclosure is made in connection with a court proceeding or required by law, or such information becomes available to the public generally or through a third
party without an accompanying obligation of confidentiality and without any action or omission by any selling Holder in violation of this subsection (i); 
 (ii) cause the Company’s officers, directors, employees, accountants and auditors to make reasonably available for inspection all relevant information reasonably requested by the selling Holders or any such
underwriter, attorney, accountant or agent in connection with any such Registration Statement as is customary for similar due diligence examinations; provided, however, that any information that is designated in writing by the Company, in good
faith, as confidential at the time of delivery of such information shall be kept confidential by the selling Holders or any such underwriter, attorney, accountant or agent, unless such disclosure is made in connection with a court proceeding or
required by law, or such information becomes available to the public generally or through a third party without an accompanying obligation of confidentiality and without any action or omission by any selling Holder in violation of this subsection
(ii); 
 (iii) make such representations and warranties to the Holders of New Notes registered thereunder and the
underwriters, if any, in form, substance and scope as are customarily made by the Company to underwriters in primary underwritten offerings and covering matters including, but not limited to, those set forth in the Dealer Manager Agreement;

 (iv) obtain opinions of counsel to the Company and updates thereof (which counsel and opinions (in form, scope and
substance) shall be reasonably satisfactory to the Managing Underwriters, if any) addressed to each selling Holder and the underwriters, if any, covering such matters as are customarily covered in opinions requested in underwritten offerings and
such other matters as may be reasonably requested by such Holders and underwriters; 
 (v) obtain “comfort” letters
and updates thereof from the independent certified public accountants of the Company (and, if necessary, any other independent certified public accountants of any subsidiary of the Company or of any business acquired by the Company for which
financial statements and financial data are, or are required to be, included in the Registration Statement), addressed to each selling Holder of New Notes registered thereunder and the underwriters, if any, in customary form and covering matters of
the type customarily covered in “comfort” letters in connection with primary underwritten offerings; and 
  

 12 

 (vi) deliver such documents and certificates as may be reasonably requested by the
Majority Holders or the Managing Underwriters, if any, including those to evidence compliance with Section 4(k) hereof and with any customary conditions contained in the underwriting agreement or other agreement entered into by the Company.

 The actions set forth in the foregoing subclauses (iii), (iv), (v) and (vi) shall be performed at (A) the effectiveness of such
Registration Statement and each post-effective amendment thereto; and (B) each closing under any underwriting or similar agreement as and to the extent required thereunder. 
 (s) In the case of any Exchange Offer Registration Statement, the Company shall: 
 (i) make reasonably available for inspection by you, and any attorney, accountant or other agent retained by you, all relevant financial
and other records, pertinent corporate documents and properties of the Company and its subsidiaries; 
 (ii) cause the
Company’s officers, directors, employees, accountants and auditors to supply all relevant information reasonably requested by you or any such attorney, accountant or agent in connection with any such Registration Statement as is customary for
similar due diligence examinations; provided, however, that any information that is designated in writing by the Company, in good faith, as confidential at the time of delivery of such information shall be kept confidential by you or any such
attorney, accountant or agent, unless such disclosure is made in connection with a court proceeding or required by law, or such information becomes available to the public generally or through a third party without an accompanying obligation of
confidentiality and without any action or omission by any selling Holder in violation of this subsection (ii); 
 (iii) make
such representations and warranties to you, in form, substance and scope as are customarily made by the Company to underwriters in primary underwritten offerings and covering matters including, but not limited to, those set forth in the Dealer
Manager Agreement; 
 (iv) obtain opinions of counsel to the Company (which counsel and opinions (in form, scope and
substance) shall be reasonably satisfactory to you and your counsel) and updates thereof, addressed to you, covering such matters as are customarily covered in opinions requested in underwritten offerings and such other matters as may be reasonably
requested by you or your counsel; 
 (v) obtain “comfort” letters and updates thereof from the independent certified
public accountants of the Company (and, if necessary, any other independent certified public accountants of any subsidiary of the Company or of any business acquired by the Company for which financial statements and financial data are, or are
required to be, included in the Registration Statement), addressed to you, in customary form and covering matters of the type customarily covered in “comfort” letters in 

  

 13 

 
connection with primary underwritten offerings, or if requested by you or your counsel in lieu of a “comfort” letter, an agreed-upon procedures
letter under Statement on Auditing Standards No. 35, covering matters requested by you or your counsel; and 
 (vi)
deliver such documents and certificates as may be reasonably requested by you or your counsel, including those to evidence compliance with Section 4(k) and with conditions customarily contained in underwriting agreements. 
 The actions set forth in the foregoing subclauses (iii), (iv), (v) and (vi) shall be performed at (A) the close of the Registered Exchange Offer and
(B) the effective date of any post-effective amendment to the Exchange Offer Registration Statement. 
 (t) If a Registered Exchange
Offer is to be consummated, upon delivery of the New Notes by Holders to the Company (or to such other person as directed by the Company) in exchange for the Exchange Notes, the Company shall mark, or cause to be marked, on the New Notes so
exchanged that such New Notes are being cancelled in exchange for the Exchange Notes. In no event shall the New Notes be marked as paid or otherwise satisfied. 
 (u) The Company shall use its reasonable best efforts if the New Notes have been rated prior to the Settlement Date, to confirm such ratings will apply to the New Notes or the Exchange Notes. 
 (v) In the case of any Shelf Registration Statement, if any Broker-Dealer shall underwrite any New Notes or participate as a member of an underwriting
syndicate or selling group or “assist in the distribution” (within the meaning of the Rules of Fair Practice and the By-Laws of the National Association of Securities Dealers, Inc.) thereof, whether as a Holder of such New Notes or as an
underwriter, a placement or sales agent or a broker or dealer in respect thereof, or otherwise, the Company shall use its reasonable best efforts to assist such Broker-Dealer in complying with the requirements of such Rules and By-Laws. 

5. Additional Interest 
 (a) The
parties hereto acknowledge that the Holders of New Notes or Exchange Notes, as the case may be, will suffer damages if the Company fails to perform its obligations under Section 2 or 3 hereof and that it would not be feasible to ascertain the
extent of such damages. Accordingly, in the event that: 
 (i) the Exchange Offer Registration Statement has not been filed on
or prior to the 90th day following the Settlement Date; 
 (ii) the Exchange Offer Registration Statement has not been declared effective on or prior to the 180th day following the Settlement Date; 
 (iii) neither the Exchange Offer has been completed nor the Shelf Registration Statement has been declared effective on or prior to the 210th day following the Settlement Date; 
  

 14 

 (iv) the Shelf Registration Statement is not declared effective on or prior to the
45th day following the request or requirement therefore pursuant to section 3(b) hereof; 
 (v) after the Exchange Offer Registration Statement has been declared effective, such Registration Statement ceases to be effective or
usable in connection with the Registered Exchange Offer or resales of the New Notes prior to the consummation of the Registered Exchange Offer; or 
 (vi) after the Shelf Registration Statement, if applicable, has been declared effective, but ceases to be effective or usable in connection with resales of the New Notes for a period of time that exceeds 60 days in
aggregate in any 12-month period in which it is required to be effective under this Agreement; 
 (each such event referred to in the foregoing clauses
(i) through (iv), a “Registration Default”), then additional interest (“Additional Interest”) will accrue on the principal amount of the New Notes and the Exchange Notes, respectively (in addition to the stated interest on
the New Notes and the Exchange Notes), from and including the date on which any Registration Default first occurs and while any such Registration Default has occurred and is continuing, to but excluding the date on which all filings, declarations of
effectiveness and consummations, as the case may be, have been achieved which, if achieved on a timely basis, would have prevented the occurrence of all of the then existing Registration Defaults. Additional Interest will accrue at a rate of
0.25% per annum during the 90-day period immediately following such first occurrence of a Registration Default and while any such Registration Default has occurred and is continuing, and shall increase by 0.25% per annum at the end of each
subsequent 90-day period up to a maximum of 0.50% per annum with respect to all Registration Defaults, until the date on which all of the filings, declarations of effectiveness and consummations referred to in the preceding sentence have been
achieved, on which date the interest rate on the New Notes and the Exchange Notes, respectively, will revert to the interest rate originally borne by such notes. 
 (b) The Company shall notify the Trustee or the Exchange Notes Trustee, as applicable, immediately upon its knowledge of the happening of each and every Registration Default. The Company shall pay the Additional
Interest due on the New Notes or Exchange Notes, as the case may be, by depositing with the Trustee or the Exchange Notes Trustee, as applicable, in trust, for the benefit of the Holders thereof, prior to 11:00 A.M. on the next interest payment date
specified in the Indenture or the Exchange Notes Indenture, as applicable, sums sufficient to pay the Additional Interest then due. The Additional Interest due shall be payable on each interest payment date specified by the Indenture or the Exchange
Notes Indenture, as applicable, to the record holders entitled to receive the interest payment to be made on such date. 
 (c) The parties
hereto agree that the Additional Interest provided for in this Section 5 constitutes a reasonable estimate of the damages that will be suffered by Holders of New Notes or Exchange Notes by reason of the happening of any Registration Default.

  

 15 

 (d) All of the Company’s obligations set forth in this Section 5 shall survive the termination
of this Agreement. 
 6. Registration Expenses. The Company shall bear all expenses incurred in connection with the performance of its
obligations under Sections 2, 3, and 4 hereof and, in connection with any Shelf Registration Statement, shall reimburse the Holders for the reasonable fees and disbursements of one firm or counsel (which shall initially be Cleary Gottlieb
Steen & Hamilton LLP, but which may be another nationally recognized law firm experienced in securities matters designated by the Majority Holders) to act as counsel for the Holders in connection therewith, and, in the case of any Exchange
Offer Registration Statement, will reimburse the Dealer Managers for the reasonable fees and disbursements of counsel acting in connection therewith. 
 7. Indemnification and Contribution. (a) The Company agrees to indemnify and hold harmless each Holder of New Notes or Exchange Notes, as the case may be, covered by any Registration Statement (including
each Dealer Manager and, with respect to any Prospectus delivery as contemplated in Section 4(h) hereof, each Exchanging Dealer), the directors, officers, employees and agents of each such Holder and each person who controls you or any such
Holder within the meaning of either the Act or the Exchange Act against any and all losses, claims, damages or liabilities, joint or several, to which any of the foregoing may become subject under the Act, the Exchange Act or other Federal or state
statutory law or regulation, at common law or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact
contained in such Registration Statement as originally filed or in any amendment thereof, or in any preliminary Prospectus or the Prospectus, or in any amendment thereof or supplement thereto, or arise out of or are based upon the omission or
alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein (in the case of any Issuer Free Writing Prospectus approved by the Company, any preliminary Prospectus, or the Prospectus, in
the light of the circumstances under which they were made) not misleading, and agrees to reimburse each such indemnified party, as incurred, for any legal or other expenses reasonably incurred by it in connection with investigating or defending any
such loss, claim, damage, liability or action; provided, however, that the Company will not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon any such untrue statement or alleged
untrue statement or omission or alleged omission made therein in reliance upon and in conformity with written information furnished to the Company by or on behalf of any such Holder specifically for inclusion therein and provided further, that the
Company will not be liable in any such case to the extent that a Holder fails to deliver, at or prior to the written confirmation of sale, the most recent Prospectus, as amended or supplemented, if such Prospectus, as amended or supplemented, had
been previously furnished by or on behalf of the Company to such Holder and corrected such untrue statement or omission or alleged untrue statement or omission of a material fact and the delivery thereof by such Holder was required by law or any
rule or regulation of any applicable stock exchange. This indemnity agreement shall be in addition to any liability which the Company may otherwise have. 
 The Company also agrees to indemnify as provided in this Section 7(a) or contribute as provided in Section 7(d) hereof to Losses of each underwriter of New Notes, registered under a Shelf Registration
Statement, its directors, officers, employees or agents and 

  

 16 

 
each person who controls such underwriter on substantially the same basis as that of the indemnification of the selling Holders provided in this
Section 7(a) and shall, if requested by any Holder, enter into an underwriting agreement reflecting such agreement, as provided in Section 4(p) hereof. 
 (b) Each Holder of securities covered by a Registration Statement (including each Dealer Manager and, with respect to any Prospectus delivery as contemplated in Section 4(h) hereof, each Exchanging Dealer),
severally and not jointly, agrees to indemnify and hold harmless the Company, and each of its directors and officers who signs such Registration Statement and each person who controls the Company within the meaning of either the Act or the Exchange
Act, to the same extent as the indemnity in Section 7(a) from the Company to each such Holder, against any and all losses, claims, damages or liabilities, joint or several, to which the Company or such control persons may become subject under
the Act, the Exchange Act or other federal or state statutory law or regulation, at common law or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement
or alleged untrue statement of a material fact contained in such Registration Statement as originally filed or in any amendment thereof, or in any Issuer Free Writing Prospectus, any preliminary Prospectus or the Prospectus, or in any amendment
thereof or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein (in the case of any Issuer Free Writing
Prospectus, any preliminary Prospectus or the Prospectus, in light of the circumstances under which they were made) not misleading, and agrees to reimburse each such indemnified party, as incurred, for any legal or other expenses reasonably incurred
by it in connection with investigating or defending any such loss, claim, damage, liability or action, but in each case only to the extent that the untrue statement or omission or alleged untrue statement or omission was made in reliance upon and in
conformity with written information relating to such Holder furnished to the Company by or on behalf of such Holder specifically for inclusion in the documents referred to in the foregoing indemnity. This indemnity agreement shall be in addition to
any liability which any such Holder may otherwise have. 
 (c) Promptly after receipt by an indemnified party under this Section 7 or
notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under this Section, notify the indemnifying party in writing of the commencement thereof; but the
failure so to notify the indemnifying party (i) will not relieve it from liability under paragraph (a) or (b) above unless and to the extent it did not otherwise learn of such action and such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses; and (ii) will not, in any event, relieve the indemnifying party from any obligations to any indemnified party other than the indemnification obligation provided in paragraph (a) or
(b) above. The indemnifying party shall be entitled to appoint counsel (including local counsel) of the indemnifying party’s choice at the indemnifying party’s expense to represent the indemnified party in any action for which
indemnification is sought (in which case the indemnifying party shall not thereafter be responsible for the fees and expenses of any separate counsel, other than local counsel if not appointed by the indemnifying party, retained by the indemnified
party or parties except as set forth below); provided, however, that such counsel shall be satisfactory to the indemnified party. It is understood that the indemnifying party shall not, in respect of legal expenses of any indemnified party in
connection 

  

 17 

 
with any proceeding or related proceedings in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any
local counsel) for all such indemnified parties. Notwithstanding the indemnifying party’s election to appoint counsel to represent the indemnified party in an action, the indemnified party shall have the right to employ separate counsel
(including local counsel), and the indemnifying party shall bear the reasonable fees, costs and expenses of such separate counsel if (i) the use of counsel chosen by the indemnifying party to represent the indemnified party would present such
counsel with a conflict of interest; (ii) the actual or potential defendants in, or targets of, any such action include both the indemnified party and the indemnifying party and the indemnified party shall have reasonably concluded that there
may be legal defenses available to it and/or other indemnified parties that are different from or additional to those available to the indemnifying party; (iii) the indemnifying party shall not have employed counsel satisfactory to the
indemnified party to represent the indemnified party within a reasonable time after notice of the institution of such action; or (iv) the indemnifying party shall authorize the indemnified party to employ separate counsel at the expense of the
indemnifying party. An indemnifying party shall not, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought hereunder (whether or not the indemnified parties are actual or potential parties to such claim or action) unless such settlement, compromise or consent includes an
unconditional release of each indemnified party from all liability arising out of such claim, action, suit or proceeding. 
 (d) In the event
that the indemnity provided in paragraph (a) or (b) of this Section 7 is unavailable to or insufficient to hold harmless an indemnified party for any reason, then each applicable indemnifying party shall have a joint and several
obligation to contribute to the aggregate losses, claims, damages and liabilities (including legal or other expenses reasonably incurred in connection with investigating or defending same) (collectively “Losses”) to which such indemnified
party may be subject in such proportion as is appropriate to reflect the relative benefits received by such indemnifying party, on the one hand, and such indemnified party, on the other hand, from the Initial Exchange Offer and the Registration
Statement which resulted in such Losses; provided, however, that in no case shall any Dealer Manager or any Holder of any New Note or Exchange Note be responsible, in the aggregate, for any amount in excess of the Fee applicable to such New Note, or
in the case of an Exchange Note, applicable to the New Note that was exchangeable into such Exchange Note, in connection with the Initial Exchange Offer as set forth in the Dealer Manager Agreement, nor shall any underwriter be responsible for any
amount in excess of the underwriting discount or commission applicable to the New Notes or Exchange Notes, as the case may be, purchased by such underwriter under the Registration Statement which resulted in such Losses. If the allocation provided
by the immediately preceding sentence is unavailable for any reason, the indemnifying party and the indemnified party shall contribute in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of
such indemnifying party, on the one hand, and such indemnified party, on the other hand, in connection with the statements or omissions which resulted in such Losses as well as any other relevant equitable considerations. Benefits received by the
Company shall be deemed to be equal to (x) the aggregate principal amount of Old Notes exchanged in the Initial Exchange Offer (before deducting expenses), plus (y) the total amount of Additional Interest which the Company was not
required to pay as a result of registering the New Notes or Exchange Notes covered by the Registration Statement which resulted in such Losses, 

  

 18 

 
minus (z) the aggregate amount of Fees paid by the Company in connection with the Initial Exchange Offer under the Dealer Manager Agreement. Benefits
received by the Dealer Managers shall be deemed to be equal to the aggregate amount of Fees received by the Dealer Managers in connection with the Initial Exchange Offer under the Dealer Manager Agreement, and benefits received by any Holders shall
be deemed to be equal to the value of receiving New Notes or Exchange Notes, as applicable, registered under the Act. Benefits received by any underwriter shall be deemed to be equal to the total underwriting discounts and commissions, as set forth
on the cover page of the Prospectus forming a part of the Registration Statement which resulted in such Losses. Relative fault shall be determined by reference to, among other things, whether any untrue or any alleged untrue statement of a material
fact or omission or alleged omission to state a material fact relates to information provided by the indemnifying party, on the one hand, or by the indemnified party, on the other hand, the intent of the parties and their relative knowledge, access
to information and opportunity to correct or prevent such untrue statement or omission. The parties agree that it would not be just and equitable if contribution were determined by pro rata allocation (even if the Holders were treated as one entity
for such purpose) or any other method of allocation which does not take account of the equitable considerations referred to above. Notwithstanding the provisions of this paragraph (d), no person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this Section, each person who controls a Holder within the meaning of either the
Act or the Exchange Act and each director, officer, employee and agent of such Holder shall have the same rights to contribution as such Holder, and each person who controls the Company within the meaning of either the Act or the Exchange Act, each
officer of the Company who shall have signed the Registration Statement and each director of the Company shall have the same rights to contribution as the Company, subject in each case to the applicable terms and conditions of this paragraph (d).

 (e) The provisions of this Section 7 shall remain in full force and effect, regardless of any investigation made by or on behalf of
any Holder or the Company or any of the officers, directors or controlling persons referred to in this Section 7, and shall survive the sale by a Holder of securities covered by a Registration Statement. 
 8. Underwritten Registrations. (a) If any of the New Notes covered by any Shelf Registration Statement are to be sold in an underwritten
offering, the Managing Underwriters shall be selected by the Majority Holders. 
 (b) No Holder may participate in any underwritten offering
pursuant to any Shelf Registration Statement, unless such Holder (i) agrees to sell such Holder’s New Notes on the basis reasonably provided in any underwriting arrangements approved by the persons entitled hereunder to approve such
arrangements, and (ii) completes and executes all questionnaires, powers of attorney, indemnities, underwriting agreements and other documents reasonably required under the terms of such underwriting arrangements. 
 9. No Inconsistent Agreements. The Company has not, as of the date hereof, entered into, nor shall the Company, on or after the date hereof, enter
into, any agreement with respect to any of its securities that is inconsistent with the rights granted to the Holders herein or that otherwise conflicts with the provisions hereof. 
  

 19 

 10. Amendments and Waivers. The provisions of this Agreement, including the provisions of this
sentence, may not be amended, qualified, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given, unless the Company has obtained the written consent of the Majority Holders (or, after the
consummation of any Registered Exchange Offer in accordance with Section 2 hereof, the Holders of a majority in the aggregate principal amount of the Exchange Notes); provided that, with respect to any matter that directly or indirectly affects
the rights of any Dealer Manager hereunder, the Company shall obtain the written consent of each such Dealer Manager against which such amendment, qualification, supplement, waiver or consent is to be effective. Notwithstanding the foregoing, a
waiver or consent to departure from the provisions hereof with respect to a matter that relates exclusively to the rights of Holders whose securities are being sold pursuant to a Registration Statement and that does not directly or indirectly affect
the rights of other Holders may alternatively be given by the Majority Holders of the New Notes or Exchange Notes, as the case may be, being sold rather than registered under such Registration Statement. 
 11. Notices. All notices and other communications provided for or permitted hereunder shall be made in writing by hand-delivery, first-class mail,
telex, telecopier or air courier guaranteeing overnight delivery: 
 (a) if to a Holder, at the most current address given by such Holder to
the Company in accordance with the provisions of this Section 11, which address initially is, with respect to each Holder, the address of such Holder maintained by the Registrar under the Indenture, with a copy in like manner to you;

 (b) if to you, initially at the address set forth in the Dealer Manager Agreement; and 
 (c) if to the Company, initially at the Company’s address set forth in the Dealer Manager Agreement. 
 All such notices and communications shall be deemed to have been duly given when received. 
 Each party hereto by notice to the other parties may designate additional or different addresses of such party for subsequent notices or communications.

 12. Successors. This Agreement shall inure to the benefit of and be binding upon the successors and assigns of each of the parties,
including, without the need for an express assignment or any consent by the Company thereto, subsequent Holders of New Notes and Exchange Notes. The Company hereby agrees to extend the benefits of this Agreement to any Holder of New Notes and
Exchange Notes, and any such Holder may specifically enforce the provisions of this Agreement as if an original party hereto. The Company agrees that monetary damages would not be adequate compensation for any loss incurred by reason of a breach by
the Company of the provisions of this Agreement and hereby agrees to waive in any action for specific performance the defense that a remedy at law would be adequate. 
 13. Counterparts. This Agreement may be signed in counterparts, each of which shall constitute an original and all of which together shall constitute one and the same agreement. 
  

 20 

 14. Headings. The headings used herein are for convenience only and shall not affect the
construction hereof. 
 15. Applicable Law. This Agreement shall be governed by and construed in accordance with the laws of the State
of New York applicable to contracts made and to be performed in the State of New York. The parties hereto each hereby waive any right to a trial by jury in any action, proceeding or counterclaim arising out of or relating to this agreement.

 16. Severability. In the event that any one or more of the provisions contained herein, or the application thereof in any
circumstances, is held invalid, illegal or unenforceable in any respect for any reason, the validity, legality and enforceability of any such provision in every other respect and of the remaining provisions hereof shall not be in any way impaired or
affected thereby, it being intended that all of the rights and privileges of the parties shall be enforceable to the fullest extent permitted by law. 
 17. Securities Held by the Company, etc. Whenever the consent or approval of Holders of a specified percentage of principal amount of New Notes or Exchange Notes is required hereunder, New Notes or Exchange
Notes, as applicable, held by the Company or any of its Affiliates (other than subsequent Holders of New Notes or Exchange Notes if such subsequent Holders are deemed to be Affiliates solely by reason of their holdings of such New Notes or Exchange
Notes) shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage. 
  

 21 

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

			
	 Very truly yours,

	
	 Olin Corporation

		
	 By
	 	 /s/ Stephen C. Curley
  

		 	 Name: Stephen C. Curley

		 	 Title:   Vice President and Treasurer

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

			
	 By:
	 	 Banc of America Securities LLC
 as Dealer Manager

		
	 By
	 	 /s/ Lily Chang
  

		 	 Name: Lily Chang

		 	 Title: Principal

		
	 By:
	 	 Citigroup Global Markets Inc.
 as Dealer Manager

		
	 By
	 	 /s/ Kevin Mills
  

		 	 Name: Kevin Mills

		 	 Title: Vice President

		
	 By:
	 	 Wachovia Capital Markets, LLC
 as Dealer Manager

		
	 By
	 	 /s/ Daniel A. Nais
  

		 	 Name: Daniel A. Nais

		 	 Title: Managing Director

  

 22 

 ANNEX A 
 Each Broker-Dealer that receives Exchange Notes for its own account pursuant to the Registered Exchange Offer must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Notes.
The Letter of Transmittal states that by so acknowledging and by delivering a prospectus, a Broker-Dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Act. This Prospectus, as it may be amended or
supplemented from time to time, may be used by a Broker-Dealer in connection with resales of Exchange Notes received in exchange for New Notes where such New Notes were acquired by such Broker-Dealer as a result of market-making activities or other
trading activities. The Company has agreed that, starting on the Expiration Date (as defined herein) and ending on the close of business one year after the Expiration Date, they will make this Prospectus available to any Broker-Dealer for use in
connection with any such resale. See “Plan of Distribution.” 
  

 23 

 ANNEX B 
 Each Broker-Dealer that receives Exchange Notes for its own account in exchange for New Notes, where such New Notes were acquired by such Broker-Dealer as a result of market-making activities or other trading
activities, must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Notes. See “Plan of Distribution.” 
  

 24 

 ANNEX C 
 PLAN OF DISTRIBUTION 
 Each Broker-Dealer that receives Exchange Notes for its own account pursuant
to the Registered Exchange Offer must acknowledge that it will deliver a prospectus (the “Prospectus”) in connection with any resale of such Exchange Notes. This Prospectus, as it may be amended or supplemented from time to time, may be
used by a Broker-Dealer in connection with resales of Exchange Notes received in exchange for New Notes where such New Notes were acquired as a result of market-making activities or other trading activities. The Company has agreed that, starting on
the Expiration Date and ending on the close of business one year after the Expiration Date, they will make this Prospectus, as amended or supplemented, available to any Broker-Dealer for use in connection with any such resale. In addition, until
[                    ,         ,] all dealers effecting transactions in the Exchange Notes may be required to
deliver a prospectus. 
 The Company will not receive any proceeds from any sale of Exchange Notes by Broker-Dealers. Exchange Notes received
by Broker-Dealers for their own account pursuant to the Registered Exchange Offer may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the writing of options on the Exchange
Notes or a combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or negotiated prices. Any such resale may be made directly to purchasers or to or through brokers
or dealers who may receive compensation in the form of commissions or concessions from any such Broker-Dealer and/or the purchasers of any such Exchange Notes. Any Broker-Dealer that resells Exchange Notes that were received by it for its own
account pursuant to the Registered Exchange Offer and any broker or dealer that participates in a distribution of such Exchange Notes may be deemed to be an “underwriter” within the meaning of the Act and any profit of any such resale of
Exchange Notes and any commissions or concessions received by any such persons may be deemed to be underwriting compensation under the Act. The Letter of Transmittal states that by acknowledging that it will deliver and by delivering a prospectus, a
Broker-Dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Act. 
 For a period of one year
after the Expiration Date, the Company shall promptly send additional copies of this Prospectus and any amendment or supplement to this Prospectus to any Broker-Dealer that requests such documents in the Letter of Transmittal. The Company has agreed
to pay all expenses incident to the Registered Exchange Offer (including the expenses of one counsel for the holders of the New Notes) other than commissions or concessions of any brokers or dealers and will indemnify the holders of the New Notes
(including any Broker-Dealers) against certain liabilities, including liabilities under the Act. 
 [If applicable, add information required
by Items 507 and 508 of Regulation S-K.] 
  

 25 

 ANNEX D 
 Rider A 
 CHECK HERE
IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO. 
  

					
	 Name:
	  	  
	  	
	 Address:
	  	  
	  	
		  	  
	  	

 Rider B 
 If the undersigned is not a Broker-Dealer, the undersigned represents that it acquired the Exchange Notes in the ordinary course of its business, it is not engaged in, and does not intend to engage in, a distribution
of Exchange Notes and it has no arrangements or understandings with any person to participate in a distribution of the Exchange Notes. If the undersigned is a Broker-Dealer that will receive Exchange Notes for its own account in exchange for New
Notes, it represents that the New Notes to be exchanged for Exchange Notes were acquired by it as a result of market-making activities or other trading activities and acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Notes; however, by so acknowledging and by delivering a prospectus, the undersigned will not be deemed to admit that it is an “underwriter” within the meaning of the Act. 
  

 26 

 EXHIBIT A 
 FORM OF LETTER TO BE PROVIDED BY THE COMPANY TO 
 THE DEPOSITORY TRUST COMPANY 
 The Depository Trust Company 
 7 Hanover Square, 23rd Floor 
 New York, NY 10004 
 Re:
[·]% Notes Due 2016 (the “Notes”) of Olin Corporation (the “Company”) 
 Ladies and Gentlemen: 
 Please be advised that the Securities and Exchange Commission has declared effective a Registration Statement on Form S-3 under the Securities Act of 1933, as amended, with regard to all of the Notes referenced above. Accordingly, there is
no longer any restriction as to whom such Notes may be sold and any restrictions on the CUSIP designation are no longer appropriate and may be removed. I understand that upon receipt of this letter, DTC will remove any stop or restriction on its
system with respect to this issue. 
 As always, please do not hesitate to call if we can be of further assistance. 
 Very truly yours, 
 Authorized Officer 
  

 27

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