Document:

Supplement to the Foreign Guarantee Agreement

 Exhibit 10.2 

SUPPLEMENT dated as of June 4, 2010 (this “Supplement”), to the Foreign Guarantee Agreement dated as of
May 31, 2005 (the “Guaranty”), among HEXION LLC, a Delaware limited liability company, HEXION SPECIALTY CHEMICALS, INC., a New Jersey corporation, each Foreign Subsidiary Loan Party party thereto and JPMORGAN CHASE BANK, N.A.,
as Administrative Agent (in such capacity, the “Administrative Agent”) for the Lenders (as defined therein). 

A. Reference is made to the Third Amended and Restated Credit Agreement dated as of January 29, 2010 (as amended, supplemented,
waived or otherwise modified from time to time, the “Credit Agreement”), among Hexion LLC, Hexion Specialty Chemicals, Inc., Hexion Specialty Chemicals Canada, Inc., Hexion Specialty Chemicals B.V., Hexion Specialty Chemicals UK
Limited and Borden Chemical UK Limited, the Lenders party thereto from time to time, JPMorgan Chase Bank, N.A., as Administrative Agent for the Lenders, Credit Suisse, as syndication agent, and J.P. Morgan Securities Inc. and Credit Suisse
Securities (USA) LLC, as joint lead arrangers and joint bookrunners. 
 B. Capitalized terms used herein and not otherwise
defined herein shall have the meanings assigned to such terms in the Credit Agreement and the Guaranty. 
 C. The Guarantors
have entered into the Guaranty in order to induce the Lenders to make Loans and accept and purchase B/As and each Issuing Bank to issue Letters of Credit. Section 12 of the Guaranty provides that additional Subsidiaries may become Guarantors
under the Guaranty by execution and delivery of an instrument in the form of this Supplement. The undersigned Subsidiaries (each, a “New Subsidiary”) are executing this Supplement in accordance with the requirements of the Credit
Agreement to become Guarantors under the Guaranty in order to induce the Lenders to make additional Loans and accept and purchase additional B/As and each Issuing Bank to issue additional Letters of Credit and as consideration for Loans previously
made, B/As previously accepted and Letters of Credit previously issued. 
 Accordingly, the Administrative Agent and each New
Subsidiary agree as follows: 
 SECTION 1. In accordance with Section 12 of the Guaranty, each New Subsidiary by its
signature below becomes a Guarantor under the Guaranty with the same force and effect as if originally named therein as a Guarantor and each New Subsidiary hereby agrees to all the terms and provisions of the Guaranty applicable to it as a Guarantor
thereunder. In furtherance of the foregoing, each New Subsidiary does hereby guarantee to the Administrative Agent the due and punctual payment of the Guaranteed Obligations as set forth in the Guaranty. Each reference to a “Guarantor” in
the Guaranty shall be deemed to include each New Subsidiary. The Guaranty is hereby incorporated herein by reference. 

SECTION 2. Each New Subsidiary represents and warrants to the Administrative Agent and the other Secured Parties that this
Supplement has been duly authorized, executed and delivered by it and constitutes its legal, valid and binding obligation, enforceable against it in accordance with its terms, subject to (i) the effects of bankruptcy, insolvency, moratorium,
reorganization, fraudulent conveyance or other similar laws affecting creditors’ rights generally, (ii) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and
(iii) implied covenants of good faith and fair dealing. 

 SECTION 3. This Supplement may be executed in two or more counterparts, each of which
shall constitute an original but all of which when taken together shall constitute but one contract. This Supplement shall become effective when (a) the Administrative Agent shall have received a counterpart of this Supplement that bears the
signature of each New Subsidiary and (b) the Administrative Agent has executed a counterpart hereof. Delivery of an executed signature page to this Supplement by facsimile transmission shall be as effective as delivery of a manually signed
counterpart of this Supplement. 
 SECTION 4. Except as expressly supplemented hereby, the Guaranty shall remain in full
force and effect. 
 SECTION 5. THIS SUPPLEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS SUPPLEMENT SHALL BE
CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK. 
 SECTION 6. In the event any one or more
of the provisions contained in this Supplement should be held invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein and in the Guaranty shall not in any way be
affected or impaired thereby. The parties shall endeavor in good-faith negotiations to replace the invalid, illegal or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid,
illegal or unenforceable provisions. 
 SECTION 7. All communications and notices hereunder shall be in writing and given as
provided in Section 5(d) of the Guaranty. 
 SECTION 8. Each New Subsidiary agrees to reimburse the Administrative Agent
for its reasonable out-of-pocket expenses in connection with this Supplement, including the reasonable fees, disbursements and other charges of counsel for the Administrative Agent. 

* * * * * 

 IN WITNESS WHEREOF, each New Subsidiary and the Administrative Agent have caused this
Supplement to be executed and delivered as of the date first above written. 
  

					
	NL COOP HOLDINGS LLC
			
		 	By:	 	Hexion Specialty Chemicals, Inc., its Sole Member
			
		 	By:	 	   /s/ Authorized Signatory

		 		 	  Name:
		 		 	  Title:

 IN WITNESS WHEREOF, each New Subsidiary and the Administrative Agent have caused this
Supplement to be executed and delivered as of the date first above written. 
  

					
	HEXION INTERNATIONAL HOLDINGS COöPERATIEF U.A.
			
		 	By:	 	   /s/ Authorized Signatory

		 		 	  Name:
		 		 	  Title:
			
		 	By:	 	   /s/ Authorized Signatory

		 		 	  Name:
		 		 	  Title:

 IN WITNESS WHEREOF, each New Subsidiary and the Administrative Agent have caused this
Supplement to be executed and delivered as of the date first above written. 
  

					
	 JPMORGAN CHASE BANK, N.A.,

as Administrative Agent

			
		 	By:	 	   /s/ Authorized Signatory

		 		 	  Name:
		 		 	  Title:Supplement to the Collateral Agreement

 Exhibit 10.3 

SUPPLEMENT dated as of June 4, 2010 (this “Supplement”), to the Third Amended and Restated Collateral Agreement
dated as of January 29, 2010 (the “Collateral Agreement”), among HEXION LLC, a Delaware limited liability company, HEXION SPECIALTY CHEMICALS, INC., a New Jersey corporation, each Subsidiary Party party thereto and JPMORGAN
CHASE BANK, N.A., as Applicable First Lien Representative (in such capacity, the “Applicable First Lien Representative”) for the Secured Parties (as defined therein). 

A. Reference is made to the Third Amended and Restated Credit Agreement dated as of January 29, 2010 (as further amended, restated,
supplemented, waived or otherwise modified from time to time, the “Credit Agreement”), among Hexion LLC, Hexion Specialty Chemicals, Inc., Hexion Specialty Chemicals Canada, Inc., a Canadian corporation, Hexion Specialty Chemicals
B.V., a company organized under the laws of The Netherlands, Hexion Specialty Chemicals UK Limited, a corporation organized under the laws of England and Wales, and Borden Chemical UK Limited, a corporation organized under the laws of England and
Wales, the Lenders party thereto from time to time, JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”) for the Lenders, the other agent banks party thereto and J.P. Morgan Securities
Inc., Credit Suisse Securities (USA) LLC and Citigroup Inc., as joint lead arrangers and joint bookrunners. 
 B. Capitalized
terms used herein and not otherwise defined herein shall have the meanings assigned to such terms in the Credit Agreement and the Collateral Agreement referred to therein. 

C. The Pledgors have entered into the Collateral Agreement in order to induce the Lenders to make Loans and accept and purchase B/As and
each Issuing Bank to issue Letters of Credit. Section 7.16 of the Collateral Agreement provides that additional Subsidiaries may become Subsidiary Parties under the Collateral Agreement by execution and delivery of an instrument in the form of
this Supplement. The undersigned Subsidiary (the “New Subsidiary”) is executing this Supplement in accordance with the requirements of the Credit Agreement and any Other First Lien Agreement to become a Subsidiary Party under the
Collateral Agreement and such Other First Lien Agreement in order to induce the Lenders to make additional Loans and accept and purchase additional B/As and each Issuing Bank to issue additional Letters of Credit and as consideration for Loans
previously made, B/As previously accepted, Letters of Credit previously issued and to induce the holders of any Other First Lien Obligations to make their respective extensions of credit thereunder. 

Accordingly, the Applicable First Lien Representative and the New Subsidiary agree as follows: 

SECTION 1. In accordance with Section 7.17 of the Collateral Agreement, the New Subsidiary by its signature below becomes a
Subsidiary Party and a Pledgor under the Collateral Agreement with the same force and effect as if originally named therein as a Subsidiary Party and a Pledgor, and the New Subsidiary hereby (a) agrees to all the terms and provisions of the
Collateral Agreement applicable to it as a Subsidiary Party and Pledgor thereunder and (b) represents and warrants that the representations and warranties made by it as a Pledgor thereunder are true and correct on and as of the date hereof. In
furtherance of the 

 
foregoing, the New Subsidiary, as security for the payment and performance in full of the Obligations (as defined in the Collateral Agreement), does hereby create and grant to the Applicable
First Lien Representative, its successors and assigns, for the ratable benefit of the Secured Parties, their successors and assigns, a security interest in and Lien on all the New Subsidiary’s right, title and interest in and to the Collateral
(as defined in the Collateral Agreement) of the New Subsidiary. Each reference to a “Subsidiary Party” or a “Pledgor” in the Collateral Agreement shall be deemed to include the New Subsidiary. The Collateral Agreement is hereby
incorporated herein by reference. 
 SECTION 2. The New Subsidiary represents and warrants to the Applicable First Lien
Representative and the other Secured Parties that this Supplement has been duly authorized, executed and delivered by it and constitutes its legal, valid and binding obligation, enforceable against it in accordance with its terms, subject to
(i) the effects of bankruptcy, insolvency, moratorium, reorganization, fraudulent conveyance or other similar laws affecting creditors’ rights generally, (ii) general principles of equity (regardless of whether such enforceability is
considered in a proceeding in equity or at law) and (iii) implied covenants of good faith and fair dealing. 

SECTION 3. This Agreement may be executed in two or more counterparts, each of which shall constitute an original but all of which
when taken together shall constitute but one contract. This Supplement shall become effective when (a) the Applicable First Lien Representative shall have received a counterpart of this Supplement that bears the signature of the New Subsidiary
and (b) the Applicable First Lien Representative has executed a counterpart hereof. Delivery of an executed signature page to this Supplement by facsimile transmission shall be as effective as delivery of a manually signed counterpart of this
Supplement. 
 SECTION 4. The New Subsidiary hereby represents and warrants that (a) set forth on
Schedule I attached hereto is a true and correct schedule of the location of any and all Article 9 Collateral of the New Subsidiary, (b) set forth on Schedule II attached hereto is a true and correct schedule of all the
Pledged Stock of the New Subsidiary, (c) set forth on Schedule III attached hereto is a true and correct schedule of all Intellectual Property and (d) set forth under its signature hereto, is the true and correct legal name of the
New Subsidiary, its jurisdiction of formation, organizational ID number and the location of its chief executive office. 

SECTION 5. Except as expressly supplemented hereby, the Collateral Agreement shall remain in full force and effect. 

SECTION 6. THIS SUPPLEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS SUPPLEMENT SHALL BE CONSTRUED IN ACCORDANCE WITH
AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK. 
 SECTION 7. In the event any one or more of the provisions contained in
this Supplement should be held invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein and in the Collateral Agreement shall not in any way be affected or impaired
thereby. The parties shall endeavor in good-faith negotiations to replace the invalid, illegal or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid, illegal or unenforceable
provisions. 
  

 -2- 

 SECTION 8. All communications and notices hereunder shall be in writing and given as
provided in Section 7.01 of the Collateral Agreement and the notice section of the Other First Lien Agreement. 
 SECTION
9. The New Subsidiary agrees to reimburse the Applicable First Lien Representative for its reasonable out-of-pocket expenses in connection with this Supplement, including the reasonable fees, disbursements and other charges of counsel for the
Applicable First Lien Representative. 
  

 -3- 

 IN WITNESS WHEREOF, the New Subsidiary and the Applicable First Lien Representative have
duly executed this Supplement to the Collateral Agreement as of the day and year first above written. 
  

			
	NL COOP HOLDINGS LLC
		
	By:	 	 Hexion Specialty Chemicals, Inc., its Sole

Member

		
	By:	 	 /s/ Authorized Signatory

		 	 Name:

Title:

			
	
	Legal Name: NL COOP Holdings LLC
	
	Jurisdiction of Formation: Delaware
		
	Location of Chief	 	
	Executive Office:	 	 180 East Broad Street

Columbus, Ohio 43215

 IN WITNESS WHEREOF, the New Subsidiary and the Applicable First Lien Representative have
duly executed this Supplement to the Collateral Agreement as of the day and year first above written. 
  

			
	 JPMORGAN CHASE BANK, N.A.,

as Applicable First Lien Representative,

		
	By:	 	 /s/ Authorized Signatory

		 	 Name:

Title:

 Schedule I 

to Supplement to the 

Collateral Agreement 

LOCATION OF ARTICLE 9 COLLATERAL 
  

			
	 Description
	  	Location
		  	
		  	
		  	

 None. 

 Schedule II 

to Supplement to the 

Collateral Agreement 

Pledged Collateral of the New Subsidiary 

EQUITY INTERESTS 
  

									
	 Number of Issuer Certificate
	  	 Issuer
	  	 Registered Owner
	  	 Number and
Class of Equity
Interest

	  	Percentage of
Equity
Interests
	N/A	  	 Hexion International

Holdings Coöperatief
 U.A.
	  	 NL COOP
 Holdings
LLC
	  	 65.00%
 membership
(lidmaatschap)
	  	65.00%

 DEBT SECURITIES 

None. 
 OTHER PROPERTY 

 None. 

 Schedule III 

to Supplement to the 

Collateral Agreement 

Intellectual Property of the New Subsidiary 

None.

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