Document:

EX-4.3

 Exhibit 4.3 

THIS NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY (AS DEFINED IN THE
INDENTURE) OR A NOMINEE THEREOF. THIS NOTE IS EXCHANGEABLE FOR NOTES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITORY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND, UNLESS AND UNTIL IT IS EXCHANGED IN
WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY, OR BY A NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY, OR BY THE
DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITORY. 
 UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE COMPANY (AS DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR IN SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR
OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

CUSIP NO. 81254U205 
 ISIN NO. US81254U2050 

SEASPAN CORPORATION 
 6.375%
SENIOR NOTE DUE 2019 
  

					
	$345,000,000	  	 	No.: R-1	  

 SEASPAN CORPORATION, a Marshall Islands corporation (hereinafter called the “Company”, which term
includes any successor corporation under the Indenture referred to below), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum set forth on Schedule I annexed hereto on April 30, 2019, and
to pay interest thereon from April 3, 2014 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, quarterly on January 30, April 30, July 30 and October 30 in each year,
commencing July 30, 2014, at the rate of 6.375% per annum, until the principal hereof is paid or made available for payment. Interest on this Note shall be computed on the basis of a 360-day year of twelve 30-day months. If any Interest
Payment Date or the Maturity Date falls on a day that is not a Business Day, the required payment shall be made on the next Business Day as if it were made on the date such payment was due and no interest shall accrue on the amount so payable for
the period from and after such Interest Payment Date or the Maturity Date, as 

  
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the case may be, to such next Business Day. The interest so payable and punctually paid or duly provided for on any Interest Payment Date will, as provided in the Indenture, be paid to the Person
in whose name this Note (or one or more predecessor Notes) is registered at the close of business on the Regular Record Date for such interest, which shall be January 15, April 15, July 15 or October 15 (whether or not
a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest which is payable but not punctually paid or duly provided for on any Interest Payment Date shall forthwith cease to be payable to the registered Holder
hereof on the relevant Regular Record Date by virtue or having been such Holder, and may be paid to the Person in whose name this Note (or one or more predecessor Notes) is registered at the close of business on a subsequent special record date
(which shall be at least 10 days before the payment date) for the payment of such defaulted interest to be fixed by the Company, notice whereof shall be given to the Holders of Notes of this series not less than 10 days prior to such
Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more
fully provided in the Indenture. 
 Payment of the principal of and interest on this Note (including, without limitation, any purchase price
relating to a Change of Control) will be made at the office or agency of the Company maintained for that purpose in The Borough of Manhattan, The City of New York, in such coin or currency of the United States of America as at the time of payment is
legal tender for payment of public and private debts; provided, however, that, at the option of the Company, interest may be paid by check mailed to the address of the Person entitled thereto as such address shall appear in the
Security Register; provided, further, that payment to DTC or any successor depository may be made by wire transfer to the account designated by DTC or such successor depository in writing. 

This Note is one of a duly authorized issue of securities of the Company designated as its 6.375% Notes due 2019 (herein called the
“Notes”), issued and to be issued in one or more series under an Indenture, dated as of April 3, 2014 (the “Base Indenture”), between the Company and The Bank of New York Mellon, as Trustee (herein called the
“Trustee”, which term includes any successor trustee under the Indenture), as supplemented by the First Supplemental Indenture, dated April 3, 2014, between the Company and the Trustee (the “First Supplemental
Indenture” and, together with the Base Indenture, the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties
and immunities thereunder of the Company, the Trustee and the Holders of the Notes, and of the terms upon which the Notes are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof, initially
limited (subject to exceptions provided in the Indenture) to the aggregate principal amount of $345,000,000. 
 If an Event of Default with
respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the effect provided in the Indenture. 

  
 2 

 The Notes may not be redeemed prior to the Stated Maturity, except as described in
Section 3.01 of the First Supplemental Indenture. 
 The Notes are not subject to any sinking fund. 

Upon the occurrence of a Change of Control, each Holder of Notes will have the right to require the Company to purchase all or a portion of
such Holder’s Notes at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to but excluding the date of purchase. 

The Indenture contains provisions permitting, with certain exceptions as therein provided, the amendment thereof and the modification of the
rights and obligations of the Company and the rights of the Holders of the Notes of each series issued under the Indenture at any time by the Company and the Trustee with the written consent of the Holders of not less than a majority in aggregate
principal amount of the Notes at the time Outstanding of each series affected thereby. The Indenture also contains provisions permitting the Holders of specified percentages in aggregate principal amount of the Notes of any series at the time
Outstanding, on behalf of the Holders of all Notes of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the
Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Notes issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such
consent or waiver is made upon this Note. 
 No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Note, at the times, place and rate, and in the coin or currency, herein and in the Indenture prescribed. 

As provided in the Indenture and subject to certain limitations set forth therein and in this Note, the transfer of this Note may be
registered on the Security Register upon surrender of this Note for registration of transfer at the office or agency of the Company maintained for that purpose in any place where the principal of and interest on this Note are payable, duly endorsed
by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or by his attorney duly authorized in writing, and thereupon one or more new Notes of this
series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 

The Notes are issuable only in registered form in the denominations of $25 or any integral multiple thereof. As provided in the Indenture and
subject to certain limitations set forth in the Indenture, and in this Note, the Notes are exchangeable for a like aggregate principal amount of Notes of this series in different authorized denominations, as requested by the Holders surrendering the
same. 
 No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum
sufficient to cover any tax or other governmental charge payable in connection therewith, other than in certain cases provided in the Indenture. 

  
 3 

 Prior to due presentment of this Note for registration of transfer, the Company, the Trustee and
any agent of the Company or the Trustee may treat the Person in whose name this Note is registered as the owner hereof for all purposes, whether or not this Note be overdue, and neither the Company, the Trustee nor any such agent shall be affected
by notice to the contrary. 
 The Indenture contains provisions whereby (i) the Company may be discharged from its obligations with
respect to the Notes (subject to certain exceptions) or (ii) the Company may be released from its obligations under specified covenants and agreements in the Indenture, in each case if the Company irrevocably deposits with the Trustee money or
Government Obligations, or a combination thereof, in an amount sufficient, without consideration of any reinvestment, to pay and discharge the entire indebtedness on all Notes of this series, and satisfies certain other conditions, all as more fully
provided in the Indenture. 
 This Note shall be governed by and construed in accordance with the laws of the State of New York applicable
to agreements made or instruments entered into and, in each case, performed in said State. 
 All terms used in this Note without definition
that are defined in the Indenture shall have the meanings assigned to them in the Indenture. 
 [Remainder of Page Intentionally Left
Blank] 

  
 4 

 IN WITNESS WHEREOF, the Company has caused this Note to be to be duly executed as of the date set forth below.

 Date: 
  

			
	SEASPAN CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
		
	By:	 	  

	Name:	 	
	Title:	 	

  
 5 

 Trustee’s Certificate of Authentication 

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

Date: 

			
	THE BANK OF NEW YORK MELLON,
	        as Trustee
		
	By:	 	  

		 	Authorized Signatory

  
 6 

 ASSIGNMENT FORM 

FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto 

PLEASE INSERT SOCIAL SECURITY OR 
 OTHER IDENTIFYING NUMBER OF
ASSIGNEE 
  

	
	PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE

  

	
	  

	  

	  

 the within Security and all rights thereunder, hereby irrevocably constituting and appointing attorney to transfer said
Security on the books of the Company, with full power of substitution in the premises. 
  

			
	Dated:	 	  

			
		
	Signature:	 	  

 

			
	NOTICE:	  	THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE WITHIN INSTRUMENT IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

 Signature Guarantee: 

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

  
 7 

 OPTION OF HOLDER TO ELECT PURCHASE 

If you want to elect to have this Note purchased by the Company pursuant to Section 4.01 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 4.01 of the First Supplemental
Indenture, state the amount in principal amount: $             
  

									
	Dated:	 	
                     

	  		  	    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. 

  
 8 

 Schedule I 

SCHEDULE OF TRANSFERS AND EXCHANGES 

The initial principal amount of this Global Security is $345,000,000 (THREE HUNDRED FORTY FIVE MILLION DOLLARS). The following increases or
decreases in principal amount of this Global Security have been made: 
  

									
	 Date of

Exchange
	  	Amount of
Decrease in
Principal
Amount of this
Global Security	  	Amount of
Increase in
Principal Amount
of this Global
Security	  	Principal Amount
of this Global
Security following
such Decrease or
Increase	  	Signature of
Authorized
Signatory of
trustee or
CustodianEX-10.1

 Exhibit 10.1 

Execution Version 

FIRST AMENDMENT TO 

LIMITED LIABILITY COMPANY INTEREST PURCHASE AGREEMENT 

THIS FIRST AMENDMENT TO LIMITED LIABILITY COMPANY INTEREST PURCHASE AGREEMENT (this “Amendment”) is made and entered into as
of April 1, 2014, by and among Quanex Building Products Corporation, a Delaware corporation (“Seller”), Nichols Aluminum, LLC, a Delaware limited liability company (the “Company”) and Aleris International Inc.,
a Delaware corporation (“Buyer”). 
 RECITALS 

WHEREAS, Buyer, Seller and the Company are parties (the “Parties”) to that certain Limited Liability Company Interest
Purchase Agreement, dated as of February 7, 2014 (the “Agreement”); 
 WHEREAS, in accordance with
Section 10.09 of the Agreement, the Parties desire to amend the Agreement as herein set forth; and 
 WHEREAS, in accordance
with Section 2.03 of the Agreement, the Parties also desire to specify the Closing Date. 
 AGREEMENTS 

NOW THEREFORE, for and in consideration of the mutual covenants and agreements contained herein, and other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged by the Parties, the Parties agree as follows: 
 1. Section 2.01 of
the Agreement is hereby deleted and restated in its entirety as follows: 
 “Purchase and Sale. Subject to the terms and
conditions set forth herein, at the Closing, for the consideration specified in Section 2.02, (i) Seller shall sell to Aleris Rolled Products, Inc., a wholly owned subsidiary of Seller, all of Seller’s right, title and interest
in and to the LLC Interests, and (ii) the Seller shall cause the Company to sell to UWA Acquisition Co., a wholly owned subsidiary of Seller, all of the Company’s right, title and interest to the limited liability company interests of
Nichols Aluminum – Alabama, LLC (which consideration shall be paid directly to Seller and not Company).” 
 2.
Section 2.02(c)(i) of the Agreement is hereby deleted and restated in its entirety as follows: 
 “(i)(A) an assignment of
the LLC Interests to Aleris Rolled Products, Inc. in form and substance satisfactory to Buyer and duly executed by Seller, and (B) an assignment of the Company’s right, title and interest to the limited liability company interests of
Nichols Aluminum – Alabama, LLC to UWA Acquisition Co. in form and substance satisfactory to Buyer and duly executed by Company (collectively, the “Assignment”); and 

 Execution Version 

 

 3. Section 8.02(e) of the Agreement is hereby amended and restated in its
entirety as follows: 
 “(i) the Seller’s amendment of the Union 401(k) Plan described in Section 6.05(e) and
(ii) operational plan failures relating to either the Union 401(k) Plan or the Seller 401(k) Plan for periods prior to the Closing, notwithstanding correction of any such plan failures made by the Company prior the Closing.” 

4. Section 8.03 of the Agreement is hereby amended to add the following clause to the end thereof: 

“or (e) the restructuring of the transactions contemplated by this Agreement as reflected in the First Amendment to the Limited
Liability Company Purchase Agreement dated as of April 1, 2014.” 
 5. In accordance with Section 2.03 of the
Agreement, the Closing shall take place on April 1, 2014, to be effective as of 12:01 A.M. on April 1, 2014, at the offices of Norton Rose Fulbright, Fulbright Tower, 1301 McKinney, Suite 5100, Houston, Texas 77010. 

6. This Amendment may be executed in one or more counterparts (delivery of which may be by facsimile), each of which shall be deemed an
original, but all of which together shall constitute one and the same instruments. 
 7. Except as expressly amended by this Amendment, all
other terms and provisions of the Agreement shall remain in full force and effect. This Amendment shall in no way reduce or limit the obligations of Buyer under the Agreement. 

8. Capitalized terms not defined herein shall have the meanings given to them in the Agreement. 

[Signature pages follow] 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date first above
written. 
  

			
	 BUYER:

	
	ALERIS INTERNATIONAL INC.
		
	By:	 	  

	Name:	 	
	Title:	 	

  
 Signature Page
to First Amendment to Limited Liability Company 
 Interest Purchase Agreement 

 
			
	 SELLER:

	
	QUANEX BUILDING PRODUCTS CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	 COMPANY:

	
	NICHOLS ALUMINUM, LLC
		
	By:	 	  

	Name:	 	
	Title:	 	

  
 Signature Page
to First Amendment to Limited Liability Company 
 Interest Purchase Agreement

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