Document:

<![CDATA[Form of Medium-Term Notes, Series K, Notes Linked to the S&P 500 Index]]>

 Exhibit 4.2 
 [Face of Note] 
 Unless this certificate is presented by an authorized
representative of The Depository Trust Company, a New York corporation (“DTC”), to the Company or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of Cede &
Co. or in such other name as requested by an authorized representative of DTC (and any payment is made to Cede & Co. or 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. 94986RNV9	 	FACE AMOUNT: $___________
	REGISTERED NO. __	 	

 WELLS FARGO & COMPANY 

MEDIUM-TERM NOTE, SERIES K 
 Due Nine Months or More From Date of Issue 
 Notes
Linked to the S&P 500® Index 
 due April 7, 2020 
 WELLS FARGO & COMPANY, a corporation duly
organized and existing under the laws of the State of Delaware (hereinafter called the “Company,” which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay
to CEDE & Co., or registered assigns, an amount equal to the Redemption Amount (as defined below), 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,
on the Stated Maturity Date. The “Initial Stated Maturity Date” shall be April 7, 2020. If no Market Disruption Event (as defined below) occurs or is continuing with respect to the Index (as defined below) on the final
scheduled Calculation Day (as defined below), the Initial Stated Maturity Date will be the “Stated Maturity Date.” If a Market Disruption Event occurs or is continuing with respect to the Index on the final scheduled Calculation
Day, the “Stated Maturity Date” shall be the later of (i) three Business Days (as defined below) after the postponed final Calculation Day and (ii) the Initial Stated Maturity Date. This Security shall not bear any
interest. 
 Any payments on this Security at Maturity will be made against presentation of this Security at the office or
agency of the Company maintained for that purpose in the City of Minneapolis, Minnesota and at any other office or agency maintained by the Company for such purpose. 
 “Face Amount” shall mean, when used with respect to this Security, the amount set forth on the face of this Security as its “Face Amount.” 

 Determination of Redemption Amount 

The “Redemption Amount” of this Security will equal: 

 

	 	•	 	 if the Average Ending Level is greater than the Starting Level: the Face Amount plus the greater of: 

 

	 	(i)	the Minimum Return; and 

  

 
  

	 	•	 	 if the Average Ending Level is less than or equal to the Starting Level: the Face Amount plus the Minimum Return. 

“Index” shall mean the S&P 500® Index. 
 The “Pricing Date”
shall mean March 28, 2013. 
 The “Starting Level” is 1569.19, the Closing Level of the Index on the
Pricing Date. 
 The “Closing Level” of the Index on any Trading Day means the official closing level of the
Index as reported by the Index Sponsor on such Trading Day. 
 The “Average Ending Level” will be the
arithmetic average of the Closing Level of the Index on the Calculation Days. 
 The “Participation Rate” is
100%. 
 The “Minimum Return” is 3% of the Face Amount of this Security. 

“Index Sponsor” shall mean S&P Dow Jones Indices LLC. 

“Business Day” shall mean a day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which
banking institutions are authorized or required by law or regulation to close in New York, New York. 
 A “Trading
Day” with respect to the Index means a day, as determined by the Calculation Agent, on which (i) the Relevant Exchanges with respect to each security underlying the Index are scheduled to be open for trading for their respective
regular trading sessions and (ii) each Related Exchange is scheduled to be open for trading for its regular trading session. 
 The “Related Exchange” for the Index means each exchange or quotation system where trading has a material effect (as determined by the Calculation Agent) on the overall market for futures
or options contracts relating to the Index. 

  
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 The “Relevant Exchange” for any security then underlying the Index means
the primary exchange or quotation system on which such security is traded, as determined by the Calculation Agent. 
 The
“Calculation Days” shall be quarterly, on the last Trading Day of each March, June, September and December, commencing June 2013 and ending March 2020. A Calculation Day is subject to postponement due to the occurrence of a Market
Disruption Event. If a Market Disruption Event occurs or is continuing with respect to the Index on a Calculation Day, such Calculation Day will be postponed to the first succeeding Trading Day on which a Market Disruption Event has not occurred and
is not continuing. If such first succeeding Trading Day has not occurred as of the eighth Trading Day after the originally scheduled Calculation Day, that eighth Trading Day shall be deemed the applicable Calculation Day. If a Calculation Day has
been postponed eight Trading Days after the originally scheduled Calculation Day and a Market Disruption Event occurs or is continuing with respect to the Index on such eighth Trading Day, the Calculation Agent will determine the Closing Level of
the Index on such eighth Trading Day in accordance with the formula for and method of calculating the Closing Level of the Index last in effect prior to commencement of the Market Disruption Event, using the closing price (or, with respect to any of
the relevant securities, if a Market Disruption Event has occurred, its good faith estimate of the value of such securities at the Scheduled Closing Time (as defined below) on the Relevant Exchanges) on such date of each security included in the
Index. See “—Market Disruption Events.” As used herein, “closing price” means, with respect to any security on any date, the relevant exchange traded or quoted price of such security as of the Close of Trading (as
defined below) on such date. 
 “Calculation Agent Agreement” shall mean the Calculation Agent Agreement dated
as of May 29, 2012 between the Company and the Calculation Agent, as amended from time to time. 
 “Calculation
Agent” shall mean the Person that has entered into the Calculation Agent Agreement with the Company providing for, among other things, the determination of the Average Ending Level and the Redemption Amount, which term shall, unless the
context otherwise requires, include its successors under such Calculation Agent Agreement. The initial Calculation Agent shall be Wells Fargo Securities, LLC. Pursuant to the Calculation Agent Agreement, the Company may appoint a different
Calculation Agent from time to time after the initial issuance of this Security without the consent of the Holder of this Security and without notifying the Holder of this Security. 
 Discontinuance Of The Index; Alteration Of Method Of Calculation 
 If
the Index Sponsor discontinues publication of the Index, and the Index Sponsor or another entity publishes a successor or substitute equity index that the Calculation Agent determines, in its sole discretion, to be comparable to the Index (a
“Successor Equity Index”), then, upon the Calculation Agent’s notification of that determination to the Trustee and the Company, the Calculation Agent will substitute the Successor Equity Index as calculated by the relevant
Index Sponsor or any other entity and calculate the Average Ending Level as described above. Upon any selection by the Calculation Agent of a Successor Equity Index, the Company will cause notice to be given to the Holder of this Security.

  
 3 

 In the event that the Index Sponsor discontinues publication of the Index prior to, and the
discontinuance is continuing on, any Calculation Day and the Calculation Agent determines that no Successor Equity Index is available at such time, the Calculation Agent will calculate a substitute Closing Level for the Index in accordance with the
formula for and method of calculating the Index last in effect prior to the discontinuance, but using only those securities that comprised the Index immediately prior to that discontinuance. If a Successor Equity Index is selected or the Calculation
Agent calculates a level as a substitute for the Index, the Successor Equity Index or level will be used as a substitute for the Index for all purposes, including the purpose of determining whether a Market Disruption Event exists. 

If on any Calculation Day the Index Sponsor of the Index fails to calculate and announce the level of the Index, the Calculation Agent
will calculate a substitute Closing Level of the Index in accordance with the formula for and method of calculating the Index last in effect prior to the failure, but using only those securities that comprised the Index immediately prior to that
failure; provided that, if a Market Disruption Event occurs or is continuing on such day, then the provisions set forth above under the definition of “Calculation Days” shall apply in lieu of the foregoing. 

If at any time the Index Sponsor makes a material change in the formula for or the method of calculating the Index, or in any other way
materially modifies the Index (other than a modification prescribed in that formula or method to maintain the Index in the event of changes in constituent stock and capitalization and other routine events), then, from and after that time, the
Calculation Agent will, at the close of business in New York, New York, on each date that the Closing Level of the Index is to be calculated, calculate a substitute Closing Level of the Index in accordance with the formula for and method of
calculating the Index last in effect prior to the change, but using only those securities that comprised the Index immediately prior to that change. Accordingly, if the method of calculating the Index is modified so that the level of the Index is a
fraction or a multiple of what it would have been if it had not been modified, then the Calculation Agent will adjust the Index in order to arrive at a level of the Index as if it had not been modified. 

Market Disruption Events 
 A “Market Disruption Event” means, with respect to the Index, any of the following events as determined by the Calculation Agent in its sole discretion: 

 

	 	(A)	The occurrence or existence of a material suspension of or limitation imposed on trading by the Relevant Exchanges or otherwise relating to securities which then
comprise 20% or more of the level of the Index or any Successor Equity Index at any time during the one-hour period that ends at the Close of Trading on that day, whether by reason of movements in price exceeding limits permitted by those Relevant
Exchanges or otherwise. 

  

	 	(B)	 The occurrence or existence of a material suspension of or limitation imposed on trading by any Related Exchange or otherwise in futures or options
contracts relating to the Index or any Successor Equity Index on any Related Exchange at any time during the one-hour period that ends at the Close of Trading on that day, 

  
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whether by reason of movements in price exceeding limits permitted by the Related Exchange or otherwise. 

 

	 	(C)	The occurrence or existence of any event, other than an early closure, that materially disrupts or impairs the ability of market participants in general to effect
transactions in, or obtain market values for, securities that then comprise 20% or more of the level of the Index or any Successor Equity Index on their Relevant Exchanges at any time during the one-hour period that ends at the Close of Trading on
that day. 

  

	 	(D)	The occurrence or existence of any event, other than an early closure, that materially disrupts or impairs the ability of market participants in general to effect
transactions in, or obtain market values for, futures or options contracts relating to the Index or any Successor Equity Index on any Related Exchange at any time during the one-hour period that ends at the Close of Trading on that day.

  

	 	(E)	The closure on any Exchange Business Day of the Relevant Exchanges on which securities that then comprise 20% or more of the level of the Index or any Successor Equity
Index are traded or any Related Exchange prior to its Scheduled Closing Time unless the earlier closing time is announced by the Relevant Exchange or Related Exchange, as applicable, at least one hour prior to the earlier of (1) the actual
closing time for the regular trading session on such Relevant Exchange or Related Exchange, as applicable, and (2) the submission deadline for orders to be entered into the Relevant Exchange or Related Exchange, as applicable, system for
execution at the Close of Trading on that day. 

  

	 	(F)	The Relevant Exchange for any security underlying the Index or Successor Equity Index or any Related Exchange fails to open for trading during its regular trading
session. 

 For purposes of determining whether a Market Disruption Event has occurred: 

 

	 	(1)	the relevant percentage contribution of a security to the level of the Index or any Successor Equity Index will be based on a comparison of (x) the portion of the
level of the Index attributable to that security and (y) the overall level of the Index or Successor Equity Index, in each case immediately before the occurrence of the Market Disruption Event; 

 

	 	(2)	the “Close of Trading” means the Scheduled Closing Time of the Relevant Exchanges with respect to the securities underlying the Index or any Successor
Equity Index; 

  

	 	(3)	the “Scheduled Closing Time” of any Relevant Exchange or Related Exchange on any Trading Day for the Index or any Successor Equity Index means the
scheduled weekday closing time of such Relevant Exchange or Related Exchange on such Trading Day, without regard to after hours or any other trading outside the regular trading session hours; and 

  
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	 	(4)	an “Exchange Business Day” means any Trading Day for the Index or any Successor Equity Index on which each Relevant Exchange for the securities
underlying the Index or any Successor Equity Index and each Related Exchange are open for trading during their respective regular trading sessions, notwithstanding any such Relevant Exchange or Related Exchange closing prior to its Scheduled Closing
Time. 

 Calculation Agent 
 The Calculation Agent will determine the Redemption Amount and the Average Ending Level. In addition, the Calculation Agent will (i) determine if adjustments are required to the Closing Level of the
Index under the circumstances described in this Security, (ii) if publication of the Index is discontinued, select a Successor Equity Index or, if no Successor Equity Index is available, determine the Closing Level of the Index under the
circumstances described in this Security, and (iii) determine whether a Market Disruption Event has occurred. 
 The
Company covenants that, so long as this Security is Outstanding, there shall at all times be a Calculation Agent (which shall be a broker-dealer, bank or other financial institution) with respect to this Security. 

All determinations made by the Calculation Agent with respect to this Security will be at the sole discretion of the Calculation Agent
and, in the absence of manifest error, will be conclusive for all purposes and binding on the Company and the Holder of this Security. All percentages and other amounts resulting from any calculation with respect to this Security will be rounded at
the Calculation Agent’s discretion. 
 Redemption and Repayment 

This Security is not subject to redemption at the option of the Company or repayment at the option of the Holder hereof prior to
April 7, 2020. This Security is not entitled to any sinking fund. 
 Acceleration 

If an Event of Default, as defined in the Indenture, with respect to this Security shall occur and be continuing, the Redemption Amount
(calculated as set forth in the next sentence) of this Security may be declared due and payable in the manner and with the effect provided in the Indenture. The amount payable to the Holder hereof upon any acceleration permitted under the Indenture
will be equal to the Redemption Amount hereof calculated as provided herein; provided, however, that the Redemption Amount will be calculated using (i) the Closing Level(s) ascertained on the Calculation Day(s) that occurred before the date of
acceleration and (ii) the Closing Level(s) ascertained on each of the Trading Days leading up to and including the date of acceleration in such number equal to the number of Calculation Days scheduled to occur on or after the date of
acceleration. 
  
  

  
 6 

 Reference is hereby made to the further provisions of this Security set forth on the reverse
hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 
 Unless the
certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature or its duly authorized agent under the Indenture referred to on the reverse hereof by manual signature, this Security shall
not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 
 [The remainder of this page
has been left intentionally blank] 

  
 7 

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

			
	WELLS FARGO & COMPANY
		
	By:	 	  

		 	  

		 	Its:                            
                                         
                   

 [SEAL] 
  

			
	Attest:	 	  

		 	  

		 	Its:                            
                                         
             

  

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

	
	CITIBANK, N.A.,
		 	as Trustee
		
	By:	 	  

		 	Authorized Signature
		
		 	OR
	
	 WELLS FARGO BANK, N.A.,
   as Authenticating Agent for the Trustee

		
	By:	 	  

		 	Authorized Signature

  
 8 

 [Reverse of Note] 
 WELLS FARGO & COMPANY 
 MEDIUM-TERM NOTE, SERIES K

 Due Nine Months or More From Date of Issue 

Notes Linked to the S&P 500® Index 
 due April 7, 2020

 This Security is one of a duly authorized issue of securities of the Company (herein called the
“Securities”), issued and to be issued in one or more series under an indenture dated as of July 21, 1999, as amended or supplemented from time to time (herein called the “Indenture”), between the Company and
Citibank, N.A., as Trustee (herein called the “Trustee,” which term includes any successor trustee under 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 Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is
one of the series of the Securities designated as Medium-Term Notes, Series K, of the Company, which series is limited to an aggregate principal amount or face amount, as applicable, of $25,000,000,000 or the equivalent thereof in one or more
foreign or composite currencies. The amount payable on the Securities of this series may be determined by reference to the performance of one or more equity-, commodity- or currency-based indices, exchange traded funds, securities, commodities,
currencies, statistical measures of economic or financial performance, or a basket comprised of two or more of the foregoing, or any other market measure or may bear interest at a fixed rate or a floating rate. The Securities of this series may
mature at different times, be redeemable at different times or not at all, be repayable at the option of the Holder at different times or not at all and be denominated in different currencies. 

Article Sixteen of the Indenture shall not apply to this Security. 

The Securities are issuable only in registered form without coupons and will be either (a) book-entry securities represented by one
or more Global Securities recorded in the book-entry system maintained by the Depositary or (b) certificated securities issued to and registered in the names of, the beneficial owners or their nominees. 

The Company agrees, to the extent permitted by law, not to voluntarily claim the benefits of any laws concerning usurious rates of
interest against a Holder of this Security. 
 Modification and Waivers 

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the
Securities at the 

  
 9 

 
time Outstanding of all series to be affected, acting together as a class. The Indenture also contains provisions permitting the Holders of a majority in principal amount of the Securities of all
series at the time Outstanding affected by certain provisions of the Indenture, acting together as a class, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with those provisions of the Indenture. Certain
past defaults under the Indenture and their consequences may be waived under the Indenture by the Holders of a majority in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such
series. Solely for the purpose of determining whether any consent, waiver, notice or other action or Act to be taken or given by the Holders of Securities pursuant to the Indenture has been given or taken by the Holders of Outstanding Securities in
the requisite aggregate principal amount, the principal amount of this Security will be deemed to be equal to the amount set forth on the face hereof as the “Face Amount” hereof. Any such consent or waiver by the Holder of this Security
shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security 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 Security. 
 Defeasance 
 Section 403 and Article Fifteen of the Indenture and the provisions of clause (ii) of Section 401(1)(B) of the Indenture, relating to defeasance at any time of (a) the entire
indebtedness on this Security and (b) certain restrictive covenants and certain Events of Default, upon compliance by the Company with certain conditions set forth therein, shall not apply to this Security. The remaining provisions of
Section 401 of the Indenture shall apply to this Security. 
 Authorized Denominations 

This Security is issuable only in registered form without coupons in denominations of $1,000 or any amount in excess thereof which is an
integral multiple of $1,000. 
 Registration of Transfer 
 Upon due presentment for registration of transfer of this Security at the office or agency of the Company in the City of Minneapolis, Minnesota, a new Security or Securities of this series, with the same
terms as this Security, in authorized denominations for an equal aggregate Face Amount will be issued to the transferee in exchange herefor, as provided in the Indenture and subject to the limitations provided therein and to the limitations
described below, without charge except for any tax or other governmental charge imposed in connection therewith. 
 This
Security is exchangeable for definitive Securities in registered form only if (x) the Depositary notifies the Company that it is unwilling or unable to continue as Depositary for this Security or if at any time the Depositary ceases to be a
clearing agency registered under the Securities Exchange Act of 1934, as amended, and a successor depositary is not appointed within 90 days after the Company receives such notice or becomes aware of such ineligibility, (y) the Company in
its sole discretion determines that this Security shall be exchangeable for definitive Securities in registered form and notifies the Trustee thereof or (z) an Event of Default with respect to the Securities represented hereby has occurred and
is continuing. If this Security is exchangeable pursuant to the preceding sentence, it shall be exchangeable for definitive Securities in registered 

  
 10 

 
form, having the same date of issuance, Stated Maturity Date and other terms and of authorized denominations aggregating a like amount. 

This Security 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 of the Depositary or a nominee of such successor. Except as provided above, owners of beneficial interests in this Global Security will
not be entitled to receive physical delivery of Securities in definitive form and will not be considered the Holders hereof for any purpose under the Indenture. 
 Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered
as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 
 Obligation of the Company Absolute 
 No reference herein to the
Indenture and no provision of this Security or the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the Redemption Amount at the times, place and rate, and in the coin or currency, herein
prescribed, except as otherwise provided in this Security. 
 No Personal Recourse 

No recourse shall be had for the payment of the Redemption Amount, or for any claim based hereon, or otherwise in respect hereof, or based
on or in respect of the Indenture or any indenture supplemental thereto, against any incorporator, stockholder, officer or director, as such, past, present or future, of 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 issuance hereof, expressly waived and released.

 Defined Terms 
 All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture unless otherwise defined in this Security. 

Governing Law 

This Security shall be governed by and construed in accordance with the law of the State of New York, without regard to principles of
conflicts of laws. 

  
 11 

 ABBREVIATIONS 

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

					
	TEN COM	 	—	  	as tenants in common
			
	TEN ENT	 	—	  	as tenants by the entireties
			
	JT TEN	 	—	  	as joint tenants with right
		 		  	of survivorship and not
		 		  	as tenants in common

  

							
	UNIF GIFT MIN ACT —	  	 	  	Custodian	  	 
		  	(Cust)	  		  	(Minor)

  

	
	Under Uniform Gifts to Minors Act
	
	  

	(State)

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

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

 

					
	 Please Insert Social Security or

Other Identifying Number of Assignee
	 		 	
			
	  
	 		 	

  
  

 
  
  

 
 (PLEASE
PRINT OR TYPE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE)

  
 12 

 the within Security of WELLS FARGO & COMPANY and does hereby irrevocably constitute and appoint
                     attorney to transfer the said Security on the books of the Company, with full power of substitution in the premises. 

Dated:                      

 

	
	  

	
	  

 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. 

  
 13EX-4.1

 Exhibit 4.1 
 SECOND SUPPLEMENTAL INDENTURE 
 SECOND SUPPLEMENTAL INDENTURE (this
“Supplemental Indenture”), dated as of March 28, 2013, by and among Hexion U.S. Finance Corp., a Delaware corporation (the “Issuer”), Momentive Specialty Chemicals Inc., a New Jersey corporation
(“Holdings”), the Subsidiary Guarantors party hereto (the “Subsidiary Guarantors” and, together with Holdings, the “Guarantors”) and Wilmington Trust, National Association, as trustee under the
indenture referred to below (the “Trustee”). 
 W I T N E S S E T H : 

WHEREAS, the Issuer and Guarantors have heretofore executed and delivered to the Trustee an Indenture, dated as of March 14, 2012
(as amended and supplemented by a First Supplemental Indenture dated as of January 31, 2013, the “Indenture”), providing for the issuance of the Issuer’s 6.625% First-Priority Senior Secured Notes due 2020 (the
“Notes”); 
 WHEREAS, the Issuer and the Guarantors intend to consummate an ABL Transaction as of the date
hereof, as permitted by Article 12 of the Indenture; 
 WHEREAS, pursuant to Section 9.01(xi) of the Indenture, the Issuer,
the Guarantors and the Trustee are authorized to execute and deliver this Supplemental Indenture to make the changes and execute the agreements contemplated by Article 12 of the Indenture in connection with an ABL Transaction and changes in
furtherance thereof; 
 WHEREAS the Issuer has complied with all conditions precedent provided for in the Indenture relating to
this Supplemental Indenture; and 
 WHEREAS the Issuer has requested that the Trustee execute and deliver this Supplemental
Indenture. 
 NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of
which is hereby acknowledged, the Issuer, the Guarantors and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 
 SECTION 1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words
“herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

 SECTION 2. Amendments to the Indenture. The Indenture shall hereby be amended as
follows: 
 (a) The definition of “First-Priority After-Acquired Property” in Section 1.01 of the Indenture is
hereby amended and restated to read as follows: 
 “First-Priority After-Acquired Property” means any property (other
than the initial collateral) of Holdings, the Issuer or any Subsidiary Guarantor that secures any Secured Bank Indebtedness and ABL Obligations, other than any Excluded Assets. 

(b) The definition of “First Priority Lien Obligations” in Section 1.01 of the Indenture is hereby amended by adding the
following sentence at the end thereof: 
 “Unless the context otherwise requires, references to “First-Priority Lien
Obligations” shall exclude ABL Obligations; provided that references in each of: 
 (i) Section 4.01(b)(i) and
the second proviso in Section 4.01(b)(xiv), 
 (ii) Section 9.01(v), 

(iii) Section 11.11(c) and the last sentence of the first paragraph of Section 11.01(a), and 

(iv) in the definition of “Consolidated Secured Debt Ratio” 

to First-Priority Lien Obligations shall, in each case, include ABL Obligations.” 

(c) Section 4.06(b)(i) of the Indenture is hereby amended by striking the “or” before clause (E) and adding the
following at the end thereof: 
 “or (F) if such proceeds are from an Asset Sale of ABL Priority Collateral (including
indirect Asset Sales of ABL Priority Collateral due to the sale of the Capital Stock of a Person), any Indebtedness constituting ABL Obligations.” 
 (d) Section 4.12 of the Indenture is modified by adding the following sentence at the end thereof: 
 “In addition, for the avoidance of doubt, Liens may secure ABL Obligations to the extent provided in, and subject to, Section 12.03.” 

(e) Section 4.14 of the Indenture is modified by adding the following sentence at the end thereof: 

“Notwithstanding the foregoing, upon the acquisition by the Issuer, Holdings or any other Guarantor of any First-Priority
After-Acquired Property consisting of ABL Priority Collateral, the Issuer or such Guarantor shall only be required to grant junior priority liens on such Collateral to secure the Notes (and only take actions with respect to the granting of such
liens that are otherwise consistent with actions required to be taken by the ABL Facility Collateral Agent).” 

 (f) Section 9.01 of the Indenture is hereby amended by amending and restating the final
sentence thereof to read as follows: 
 “In addition, to the extent permitted by the First Lien Intercreditor Agreement and
the ABL Intercreditor Agreement, any amendment, waiver or consent to any of the collateral documents with respect to the First Priority Lien Obligations under the Credit Agreement or the ABL Obligations shall apply automatically to the comparable
Security Documents with respect to the Notes to the extent set forth therein.” 
 (g) Sections 11.03(a) of the Indenture is
hereby amended by amending and restating clause (7) as follows and adding a new clause (9) as set forth below: 

“(7) in respect of the property and assets of a Guarantor that at any time is not subject to a Lien securing any other
First-Priority Lien Obligations at such time (provided that if such property and assets is subsequently subject to a Lien securing any other First-Priority Lien Obligations (other than Excluded Assets), such property and assets shall subsequently
constitute Collateral hereunder) other than (x) if such release is in connection with a release or discharge by or as a result of payment in respect of the Credit Agreement or (y) if such release is due to a release of Liens by lenders
under the Credit Agreement, at any time that Indebtedness under the Credit Agreement does not constitute a majority of the aggregate principal amount of Indebtedness constituting First Priority Lien Obligations outstanding at such time;”

 “(9) in respect of any property and assets of the Issuer or a Guarantor that would constitute ABL Priority Collateral
but is at such time not subject to a Lien securing ABL Obligations, other than any assets or property that cease to be subject to a Lien securing ABL Obligations in connection with a release or discharge by or as a result of payment in full and
termination of the ABL Facility; provided that if such property and assets are subsequently subject to a Lien securing ABL Obligations (other than Excluded Assets), such property and assets shall subsequently constitute Collateral
hereunder.” 
 SECTION 3. Intercreditor Agreement. The Trustee is hereby authorized and directed to enter into the
ABL Intercreditor Agreement in the form attached hereto as Exhibit A (which such intercreditor agreement constitutes the “ABL Intercreditor Agreement” as defined in and contemplated by the definition of such term in
Section 12.04 of the Indenture). Unless the context otherwise requires, references to the First Lien Intercreditor Agreement in Section 4.05(c)(2), Section 6.10, Article IX and Article XI of the Indenture shall also refer to the ABL
Intercreditor Agreement. The ABL Facility (as defined in the ABL Intercreditor Agreement) in effect on the date hereof is hereby designated by Holdings, as of the date hereof, as an “ABL Facility” under and as defined in the Indenture.

 SECTION 4. Collateral Documents. The Trustee is hereby authorized and directed to enter into the collateral documents
in the forms attached hereto as Exhibit B and such additional collateral documents contemplated thereby (which such collateral documents implement the security arrangements contemplated by Section 12.01 of the Indenture). 

SECTION 5. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture
is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of the Notes
heretofore or hereafter authenticated and delivered shall be bound hereby. 

 SECTION 6. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 
 SECTION 7. Trustee Makes No Representation. The
Trustee makes no representation as to the validity or sufficiency of this Supplemental Indenture. 
 SECTION 8.
Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 

SECTION 9. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction thereof.

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

					
	HEXION U.S. FINANCE CORP.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	MOMENTIVE SPECIALTY CHEMICALS INC.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	BORDEN CHEMICAL FOUNDRY, LLC
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	MOMENTIVE INTERNATIONAL INC.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	MOMENTIVE SPECIALTY CHEMICALS INVESTMENTS INC.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary

 [Signature Page to Second Supplemental Indenture]

 
					
	MOMENTIVE CI HOLDING COMPANY (CHINA) LLC
		
	By:	 	Lawter International Inc.,
		 	as sole managing member
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	HSC CAPITAL CORPORATION
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	LAWTER INTERNATIONAL INC.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	OILFIELD TECHNOLOGY GROUP, INC.
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary
	
	NL COOP HOLDINGS LLC
		
	By:	 	 /s/ Ellen G. Berndt

	Name:	 	Ellen G. Berndt
	Title:	 	Vice President and Secretary

 [Signature Page to Second Supplemental Indenture] 

 
					
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 /s/ Jane Schweiger

	Name:	 	Jane Schweiger
	Title:	 	Vice President

 [Signature Page to Second Supplemental Indenture] 

 EXHIBIT A 
 FORM OF ABL INTERCREDITOR AGREEMENT 
 (see attached) 

 EXHIBIT B 
 FORM OF COLLATERAL DOCUMENTS 
 (see attached)

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