Document:

EX-10.3C

 Exhibit 10.3C 

March 30, 2012 
 Advanced Drainage Systems,
Inc. 
 4640 Trueman Blvd. 
 Hilliard, OH 43026 

 

	 	Re:	Amendment No. 3 to Amended and Restated Private Shelf Agreement 

 Ladies and Gentlemen: 

Reference is made to that certain Amended and Restated Private Shelf Agreement, dated as of September 24, 2010, as amended by that
certain Amendment No. 1 to Amended and Restated Private Shelf Agreement, dated December 12, 2011 and Limited Waiver and Amendment No. 2 to Amended and Restated Private Shelf Agreement dated March 9, 2012 (as so amended, the
“Note Agreement”), between Advanced Drainage Systems, Inc., a Delaware corporation (the “Company”), on one hand, and Prudential Investment Management, Inc. (“Prudential”) and each other Prudential
Affiliate as therein defined which becomes bound by certain provisions thereof as therein provided, on the other hand. Capitalized terms used herein and not otherwise defined herein shall have the meanings assigned to such terms in the Note
Agreement. 
 The Company has requested that Prudential and the holders of the Notes further amend the Note Agreement in connection
with the ADS Aircraft Lease (as defined below) and authorize the Collateral Agent’s Disclaimer of Security Interest (as defined below) related thereto. 

Prudential and the holders of the Notes executing this letter agreement are willing to agree to such amendments and authorization in the form
and on the terms and conditions set forth below. Accordingly, and in accordance with the provisions of paragraph 11C of the Note Agreement, the parties hereto agree as follows: 

SECTION 1. Amendments. From and after the Effective Date (as defined in Section 4 hereof) the parties hereto agree
that the Note Agreement is amended as follows: 
 1.1. Clause (vii) of the definition of “Permitted Liens” in paragraph 10B of
the Note Agreement is hereby amended and restated in its entirety to read as follows: 
 “(vii) Any Lien existing on the date of this
Agreement or any date hereafter and described on Schedule 6C, and any renewals or extensions thereof, provided that the principal amount secured thereby is not hereafter increased, and no additional assets become subject to such
Lien;” 
 1.2. Schedule 6C to the Note Agreement is hereby amended and restated to read in its entirety as attached to this
letter agreement as “Schedule 6C”. 

 SECTION 2. Consent. In connection with the consummation of the ADS Aircraft Lease,
Prudential and the holders of the Notes hereby authorize and consent to the Collateral Agent’s execution and delivery of the Disclaimer of Security Interest in substantially the form attached hereto as Exhibit 1 (the “Disclaimer
of Security Interest”), to the Owner Trustee (as defined therein). 
 SECTION 3. Representations and
Warranties. The Company represents and warrants to Prudential and each holder of a Note that, (i) the execution and delivery of this letter agreement has been duly authorized by all necessary corporate action on behalf of the Company
and each Guarantor, this letter agreement has been executed and delivered by a duly authorized officer of the Company and each Guarantor, and the Company and each Guarantor has obtained all authorizations, consents, and approval necessary for the
execution, delivery and performance of this letter agreement and such authorizations, consents and approval are in full force and effect, (ii) after giving effect hereto (a) each representation and warranty set forth in paragraph 8 of the
Note Agreement is true and correct as of the date of the execution and delivery of this letter by the Company with the same effect as if made on such date (except to the extent such representations and warranties expressly refer to an earlier date,
in which case they were true and correct as of such earlier date), (b) no Event of Default or Default exists and (c) neither the Company nor any Subsidiary has paid or agreed to pay, and the Company and its Subsidiaries will not pay or
agree to pay, any other fees or other consideration to the Bank Agent or any Bank (other than the legal fees paid to counsel for the Banks and Bank Agent) for or with respect to the amendments or waivers to the Credit Agreement or the Mexicana
Credit Agreement referred to in Section 4.2 below. 
 SECTION 4. Conditions Precedent. The amendment in Section 1 of
this letter agreement and the waiver in Section 2 of this letter agreement shall become effective on the date (the “Effective Date”) that each of the following conditions has been satisfied: 

4.1. Documents. Prudential and each holder of a Note shall have received original counterparts of this letter executed by Prudential,
the Required Holders, the Company and each Guarantor. 
 4.2. Credit Agreement Amendment and Credit Agreement and Mexicana Credit
Agreement Waivers. Prudential and each holder of a Note shall have received an amendment to each of the Credit Agreement and the Mexicana Credit Agreement pursuant to which (i) the Credit Agreement or the Mexicana Credit Agreement, as the
case may be, is amended to be consistent with the amendments of the Note Agreement as set forth in this letter agreement, and (ii) the Banks and the Bank Agent authorize and consent to the Collateral Agent’s execution and delivery of the
Disclaimer of Security Interest to the Owner Trustee, in each case in form and substance satisfactory to Prudential and the Required Holders. 

4.3. ADS Aircraft Lease. The Company and each Guarantor shall have delivered to the holders of the Notes true, correct and complete
copies of the Aircraft Lease (S/N 560-6103), dated on or about the Effective Date, executed by the Company, as lessee thereunder, and Wilmington Trust Company, not in its individual capacity, but solely as Owner Trustee under Trust Agreement dated
as of April 3, 2006, as lessor thereunder, (the “ADS Aircraft Lease”), and all of the other agreements, documents and instruments in connection therewith, all of which in form and substance satisfactory to Prudential and the
Required Holders. 

  
 - 2 - 

 4.4. Material Adverse Effect. Since March 31, 2011, no event causing a Material
Adverse Effect shall have occurred with respect to the Company or the Guarantors. 
 4.5. Fees of Special Counsel to Prudential. All
reasonable and documented fees, charges and disbursements of counsel to Prudential and the holders of the Notes to the extent invoiced on or prior to the Effective Date shall have been paid (which shall be paid directly to such counsel). 

4.6. Representations. All statements set forth in Section 3 shall be true and correct as of the Effective Date, except to the
extent that any such statement expressly relates to an earlier date (in which case such statement was true and correct on and as of such earlier date). 

4.7. Certificates. The Company and each Guarantor, by its execution and delivery of this letter agreement, shall have and be deemed to
have certified to Prudential and the holders of the Notes that the certificates dated the December 12, 2011 and signed by the Secretary or an Assistant Secretary of the Company or such Guarantor, as applicable, on behalf of itself and the
Guarantors, remain true, correct and complete on and as of the Effective Date. 
 4.8. Proceedings. All corporate and other
proceedings taken or to be taken in connection with the transactions contemplated by this letter agreement shall be satisfactory to Prudential and each holder of a Note and its counsel, and Prudential and each holder of a Note shall have received
all such counterpart originals or certified or other copies of such documents as they may reasonably request. 
 SECTION 5. Reference
to and Effect on Note Agreement; Ratification of Note Agreement. Upon the effectiveness of the amendments to the Note Agreement made in this letter agreement, each reference to the Note Agreement in any other document, instrument or
agreement shall mean and be a reference to the Note Agreement as modified by this letter. Except as specifically set forth in Section 1 hereof, the Note Agreement shall remain in full force and effect and is hereby ratified and confirmed in all
respects. Except as specifically stated in this letter, the execution, delivery and effectiveness of this letter shall not (a) amend the Note Agreement or any Note, (b) operate as a waiver of any right, power or remedy of any holder of a
Note, or (c) constitute a waiver of, or consent to any departure from, any provision of the Note Agreement or Note at any time. Nothing contained in this letter agreement shall be construed as a course of dealing or other implication that
Prudential and any holder of a Note has agreed to or is prepared to grant any consents or agree to any amendments to the Note Agreement or any Note in the future, whether or not under similar circumstances.  

SECTION 6. Expenses. The Company hereby confirms its obligations under the Note Agreement, whether or not the transactions
hereby contemplated are consummated, to pay, promptly after request by Prudential or any holder of a Note, all reasonable out-of-pocket costs and expenses, including attorneys’ fees and expenses, incurred by Prudential or such holder of a Note
in connection with this letter agreement or the transactions contemplated hereby, in enforcing any rights under this letter agreement, or in responding to any subpoena or other legal process or informal investigative demand issued in
connection with this letter agreement or the transactions contemplated hereby. The obligations of Company under this Section 6 shall survive transfer by any holder of a Note of any Note and payment of any Note. 

  
 - 3 - 

 SECTION 7. Governing Law. THIS LETTER SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE
WITH, AND THE RIGHTS OF THE PARTIES SHALL BE GOVERNED BY, THE LAW OF THE STATE OF NEW YORK (EXCLUDING ANY CONFLICTS OF LAW RULES WHICH WOULD OTHERWISE CAUSE THIS AGREEMENT TO BE CONSTRUED OR ENFORCED IN ACCORDANCE WITH, OR THE RIGHTS OF THE PARTIES
TO BE GOVERNED BY, THE LAWS OF ANY OTHER JURISDICTION). 
 SECTION 8. Reaffirmation. Each Guarantor hereby consents to the
foregoing amendment to the Note Agreement and hereby ratifies and reaffirms all of their payment and performance obligations, contingent or otherwise, under the Guaranty Agreement after giving effect to such amendment. Each Guarantor hereby
acknowledges that, notwithstanding the foregoing amendment, that the Guaranty Agreement remains in full force and effect and is hereby ratified and confirmed. Without limiting the generality of the foregoing, each Guarantor agrees and confirms that
the Guaranty Agreement continues to guaranty the Guarantied Obligations (as defined in the Guaranty Agreement) arising under or in connection with the Note Agreement or any of the Shelf Notes, as the same are amended by this letter agreement. 

SECTION 9. Counterparts; Section Titles. This letter may be executed in any number of counterparts and by different parties
hereto in separate counterparts, each of which when so executed and delivered shall be deemed to be an original and all of which when taken together shall constitute but one and the same instrument. Delivery of an executed counterpart of a signature
page to this letter by facsimile shall be effective as delivery of a manually executed counterpart of this letter. The section titles contained in this letter are and shall be without substance, meaning or content of any kind whatsoever and are not
a part of the agreement between the parties hereto. 
 [signature page follows] 

  
 - 4 - 

 
			
	Very Truly Yours,
	
	PRUDENTIAL INVESTMENT MANAGEMENT, INC.
		
	By:	 	 /s/ Joshua Shipley

		 	Vice President
	
	 THE PRUDENTIAL INSURANCE COMPANY

OF AMERICA

		
	By:	 	 /s/ Joshua Shipley

		 	Vice President
	
	 PRUDENTIAL RETIREMENT INSURANCE

    AND ANNUITY COMPANY

		
	By:	 	 Prudential Investment Management, Inc.,
 as
investment manager

		
	By:	 	 /s/ Joshua Shipley

		 	Vice President
	
	PRUCO LIFE INSURANCE COMPANY
		
	By:	 	 /s/ Joshua Shipley

		 	Vice President

 AMENDMENT NO. 3 TO AMENDED AND RESTATED PRIVATE SHELF AGREEMENT 

 Accepted and Agreed: 
  

			
	COMPANY:
	
	ADVANCED DRAINAGE SYSTEMS, INC.
		
	By:	 	 /s/ Mark B. Sturgeon

	Name:	 	Mark B. Sturgeon
	Title:	 	Secretary and Treasurer

  

			
	GUARANTORS:	  	
		
	ADS WORLDWIDE, INC.	  	
	PSA, INC.	  	
	ADS STRUCTURES, INC.	  	
	ADS VENTURES, INC.	  	
	ADS INTERNATIONAL, INC.	  	
	HANCOR HOLDING CORPORATION	  	
	HANCOR, INC.	  	
	MEDIA PLUS, INC.	  	
	HANCOR INTERNATIONAL, INC.	  	
	SPARTAN CONCRETE, INC.	  	
	SEWER TAP, INC.	  	
	ADVANCED DRAINAGE OF OHIO, INC.	  	
	GREEN LINE POLYMERS, INC.	  	

  

			
	By:	 	 /s/ Mark B. Sturgeon

	Name:	 	Mark B. Sturgeon
	Title:	 	Secretary and Treasurer

  

			
	STORMTECH LLC
		
	By:	 	 /s/ Ronald R. Vitarelli

	Name:	 	Ronald R. Vitarelli
	Title:	 	General Manager

 AMENDMENT NO. 3 TO AMENDED AND RESTATED PRIVATE SHELF AGREEMENT 

 SCHEDULE 6C 

PERMITTED LIENS 
 Reference is made to
Schedule 6B for a list of the Company’s facilities upon which mortgages exist. 
 Liens securing the obligations under each of the following: 

 

	 	•	 	The IDRB Facilities 

  

	 	•	 	Promissory Note, dated as of February 29, 2008, from Advanced Drainage Systems, Inc. in favor of JPMorgan Chase Bank, N.A. with respect to property related to the premises located at 4640 Trueman Boulevard,
Hilliard, Ohio 43026 

  

	 	•	 	Commercial Term Note, dated as of August 17, 2004, from Advanced Drainage Systems, Inc. in favor of PNC Bank, National Association (successor to National City Bank) with respect to property related to the premises
located at 2650 Hamilton-Eaton Road, Hamilton, Ohio 45011 

  

	 	•	 	Promissory Note, dated as of July 17, 2003, from Advanced Drainage Systems, Inc. in favor of United Financial Bancorp, Inc. (as assignee of General Electric Capital Business Asset Funding Corporation) with respect
to property related to the premises located at 58 Wyoming Street, Ludlow, Massachusetts 01056 

 Liens set forth in each of the following:

  

	 	•	 	The ADS Mexicana, S.A. de C.V. Participation Agreement, as amended from time to time 

  

	 	•	 	The ADS Latina, LLC Limited Liability Company Agreement, as amended from time to time 

  

	 	•	 	The Tuberías Tigre-ADS Limitada Interestholders Agreement, as amended from time to time 

 Any Liens or
security interests in Collateral or the Purchase Documents (both as defined in the Aircraft Lease as in effect on March 30, 2012) in favor of The Wilmington Trust Company, as Owner Trustee under Trust Agreement dated as of April 3, 2006
(the “Lessor”), relating to that certain leased Cessna Model 560XL aircraft or arising under that certain (i) Aircraft Lease (as in effect on March 30, 2012), (ii) that certain Assignment of Purchase Agreement, dated
on or about March 30, 2012, among the Lessor, Advanced Drainage Systems, Inc. and Cessna Aircraft Company (as in effect on March 30, 2012) or (iii) any other documentation related to any of the foregoing documents or to the
transactions described therein. 
 AMENDMENT NO. 3 TO AMENDED AND RESTATED PRIVATE SHELF AGREEMENT 

 Set forth below is a list of all other liens, none of which secure Funded Debt, except as set forth below: 

 

									
	 DEBTOR
	  	 JURISDICTION
	  	 FILE NO. & DATE
	  	 SECURED PARTY
	  	 COLLATERAL

	Hancor, Inc.	  	OH – Secretary of State	  	 OH00073192577
 01/23/2004
	  	Gelco Corporation dbs GE Fleet Services	  	In lieu of financing statement from New York filed 05/31/2001 for One (1) 2000 Hyster H60XM Challenger
					
	Hancor, Inc.	  	OH – Secretary of State	  	 OH00078476029
 06/16/2004
	  	Gelco Corporation dbs GE Fleet Services	  	One 2004 Case 588G R/T Forklift
					
	Hancor, Inc.	  	OH – Secretary of State	  	 OH00079143934
 07/08/2004
	  	Gelco Corporation dbs GE Fleet Services	  	One Harlo Forklift
					
	Hancor, Inc.	  	OH – Secretary of State	  	 OH00083806057
 11/23/2004
	  	Gelco Corporation dbs GE Fleet Services	  	One Case model forklift
					
	Hancor, Inc.	  	OH – Secretary of State	  	 OH00122851545
 01/14/2008
	  	Gelco Corporation dbs GE Fleet Services	  	One Harlo Forklift and 2 Sellick Forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 1169749 41

12/13/2001
	  	General Electric Capital Corporation	  	560 Citation Aircraft
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 22002891
 07/29/2002
	  	D.L. Peterson Trust	  	Lease: Forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 22389041
 09/17/2002
	  	D.L. Peterson Trust	  	Lease: In lieu of filings from VA, OH, CA, MS, PA, GA, FL, NC, KY, MA, UT, IA, IL, MN, AZ, WA for Forklifts.
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 31824385 *
 07/17/2003
	  	General Electric Capital Business Asset Funding Corporation	  	Blanket lien over items located at 58 Wyoming Street, Ludlow, MA 01056
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 40545881
 02/26/2004
	  	D.L. Peterson Trust	  	Lease: Lift trucks and forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 52432004
 08/05/2005
	  	Wells Fargo Equipment Finance, Inc.	  	1995 Cessna Citation Ultra Aircraft
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 63483765
 10/09/2006
	  	Chesapeake Funding LLC	  	Lease: One forklift

  

	1 	 The Company no longer leases this aircraft. 

									
	 DEBTOR
	  	 JURISDICTION
	  	 FILE NO. & DATE
	  	 SECURED PARTY
	  	 COLLATERAL

	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 64187464
 12/01/2006
	  	Chesapeake Funding LLC	  	Lease: Lift trucks and forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 70789700 **
 02/27/2007
	  	National City Bank	  	Blanket lien over assets located at Logan, New Jersey
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 70796804
 02/27/2007
	  	Comdoc Inc.	  	Ricoh equipment located at various locations: CA, IN, GA, TX, MN, OH, FL, MS, NC, NY PA
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 71199156
 03/30/2007
	  	Chesapeake Funding LLC	  	Lease: Forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 71425312
 04/14/2007
	  	Chesapeake Funding LLC	  	Lease: Forklifts
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 74445465
 11/19/2007
	  	LaSalle National Leasing Corporation	  	One Cessna Citation Model Aircraft
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 80809341
 03/06/2008
	  	IBM Credit LLC	  	IBM Computers
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 81831955
 05/29/2008
	  	Comdoc, Inc.	  	Leased Collateral from Contract 24806420
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 2009-4121445
 12/23/09
	  	Chesapeake Funding LLC	  	Specific leased equipment (lift truck)
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 2010-0075642
 01/08/10
	  	ComDoc Leasing	  	Specific leased Xerox office equipment
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 2010-2255481
 06/29/10
	  	Wells Fargo Bank, N.A.	  	Specific equipment (Cat walk-behind scrubber – S/N 57077)
					
	Advanced Drainage Systems, Inc.	  	DE – Secretary of State	  	 2010-2255499
 06/29/10
	  	Wells Fargo Bank, N.A.	  	Specific equipment (Cat walk-behind scrubber – S/N 56863)

  

	*	This lien secures Funded Debt and relates to the mortgage on the Ludlow, MA property described on Schedule 6B. 

	**	This lien secures Funded Debt and relates to the mortgage on the Logan, NJ property described on Schedule 6B.EX-10.3D

 Exhibit 10.3D 

April 26, 2013 
 Advanced Drainage Systems,
Inc. 
 4640 Trueman Blvd. 
 Hilliard, OH 43026 

 

	 	Re:	Amendment No. 4 to Amended and Restated Private Shelf Agreement 

 Ladies and Gentlemen: 

Reference is made to that certain Amended and Restated Private Shelf Agreement, dated as of September 24, 2010, as amended by that
certain Amendment No. 1 to Amended and Restated Private Shelf Agreement dated December 12, 2011, Limited Waiver and Amendment No. 2 to Amended and Restated Private Shelf Agreement dated March 9, 2012 and Amendment No. 3 to
Amended and Restated Private Shelf Agreement dated March 30, 2012 (as so amended, the “Note Agreement”), between Advanced Drainage Systems, Inc., a Delaware corporation (the “Company”), on one hand, and
Prudential Investment Management, Inc. (“Prudential”) and each other Prudential Affiliate as therein defined which becomes bound by certain provisions thereof as therein provided, on the other hand. Capitalized terms used herein and
not otherwise defined herein shall have the meanings assigned to such terms in the Note Agreement. 
 The Company has
requested that Prudential and the holders of the Notes further amend the Note Agreement in connection with the following transactions, the effect of which will be the acquisition by ADS Worldwide, Inc. (“ADS Worldwide”) of an
additional one percent (1%) of the issued and outstanding equity interests of each of ADS Mexicana, S.A. de C.V. (“ADS Mexicana”) and ADS Corporativo, S.A. de C.V. (“ADS Corporativo”), each an existing Joint
Venture, in order for each of ADS Mexicana and ADS Corporativo to continue to be a Joint Venture and not a Subsidiary of the Transaction Parties for the purposes of the terms and conditions of the Note Agreement applicable to a Subsidiary of the
Transaction Parties: (i) ADS Worldwide’s intercompany loan to and contribution to the capital of ADS Mexicana, the proceeds of which ADS Mexicana will apply to the issuance of additional equity interests to ADS Worldwide and to the
redemption of certain issued and outstanding equity interests of ADS Mexicana held by Grupo Altima, S.A. de C.V. and (ii) ADS Worldwide’s intercompany loan to and contribution to the capital of ADS Corporativo, the proceeds of which ADS
Corporativo will apply to the issuance of additional equity interests to ADS Worldwide and/or to the redemption of certain issued and outstanding equity interests of ADS Corporativo held by Grupo Altima, S.A. de C.V. (collectively, the
“Transaction”).  
 Prudential and the holders of the Notes executing this letter agreement are willing to agree to
such amendment in the form and on the terms and conditions set forth below. Accordingly, and in accordance with the provisions of paragraph 11C of the Note Agreement, the parties hereto agree as follows: 

SECTION 1. Amendments. From and after the Effective Date (as defined in Section 3 hereof) the parties hereto agree
that the Note Agreement is amended as follows: 

 1.1. Paragraph 10B of the Note Agreement is hereby amended by amending and restating the
definition of “Subsidiary” in its entirety to read as follows: 
 “Subsidiary” shall mean, with respect to any
Person, at the time of determination, any corporation, trust, partnership, any limited liability company, association, joint venture or other business entity: (i) of which more than 50.0% of the total voting power of shares of stock or other
ownership interests entitled (regardless of any contingency which does or may suspend or dilute the voting rights) to vote in the election of the Person or Persons (whether directors, managers, trustees or other Persons performing similar functions)
having the power to direct or cause the direction of the management or policies thereof is at such time owned or controlled, directly or indirectly, by such Person or one or more of such Person’s Subsidiaries or (ii) which is at such time
is controlled or capable of being controlled by such Person or one or more of such Person’s Subsidiaries; provided that in determining the percentage of ownership interest of any Person , no ownership interest in the nature of a
“qualifying share” of any such corporation, trust, partnership, any limited liability company, association, joint venture or other business entity shall be deemed outstanding; provided further, so long as no Transaction Party
owns more than 51.0% of the total voting power of ADS Mexicana S.A. de C.V. or ADS Corporativo, S.A. de C.V., respectively, each such entity shall not constitute a Subsidiary for purposes of this Agreement.” 

1.2. Schedule 6J to the Note Agreement is hereby amended and restated to read in its entirety as attached to this letter agreement as
“Schedule 6J”. 
 SECTION 2. Representations and Warranties. The Company represents and warrants to
Prudential and each holder of a Note that (i) the Transaction is permitted under the terms and conditions of the Note Agreement as in effect on the date hereof, and prior to giving effect to the amendments contained herein, (ii) the
execution and delivery of this letter agreement has been duly authorized by all necessary corporate action on behalf of the Company and each Guarantor, this letter agreement has been executed and delivered by a duly authorized officer of the Company
and each Guarantor, and the Company and each Guarantor has obtained all authorizations, consents, and approval necessary for the execution, delivery and performance of this letter agreement and such authorizations, consents and approval are in full
force and effect and (iii) after giving effect hereto (a) each representation and warranty set forth in paragraph 8 of the Note Agreement is true and correct as of the date of the execution and delivery of this letter by the Company with
the same effect as if made on such date (except to the extent such representations and warranties expressly refer to an earlier date, in which case they were true and correct as of such earlier date), (b) no Event of Default or Default exists
and (c) neither the Company nor any Subsidiary has paid or agreed to pay, and the Company and its Subsidiaries will not pay or agree to pay, any other fees or other consideration to the Bank Agent or any Bank (other than the legal fees paid to
counsel for the Banks and Bank Agent) for or with respect to the amendments to the Credit Agreement or the Mexicana Credit Agreement referred to in Section 3.2 below. 

  
 - 2 - 

 SECTION 3. Conditions Precedent. The amendments in Section 1 of this letter
agreement shall become effective on the date (the “Effective Date”) that each of the following conditions has been satisfied: 

3.1. Documents. Prudential and each holder of a Note shall have received original counterparts of this letter agreement executed by
Prudential, the Required Holders, the Company and each Guarantor. 
 3.2. Credit Agreement Amendment and Credit Agreement and Mexicana
Credit Agreement Waivers. Prudential and each holder of a Note shall have received an amendment to each of the Credit Agreement and the Mexicana Credit Agreement pursuant to which the Credit Agreement or the Mexicana Credit Agreement, as the
case may be, is amended to be consistent with the amendments of the Note Agreement as set forth in this letter agreement in form and substance satisfactory to Prudential and the Required Holders. 

3.3. Certificates. 
 (a)
The Company and each Guarantor (other than Green Line Polymers, Inc.), by its execution and delivery of this letter agreement, shall have and be deemed to have certified to Prudential and the holders of the Notes that the certificates dated the
December 12, 2011 and signed by the Secretary or an Assistant Secretary of the Company or such Guarantor, as applicable, on behalf of itself and the Guarantors, remain true, correct and complete on and as of the Effective Date. 

(b) Green Line Polymers, Inc., by its execution and delivery of this letter agreement, shall have and be deemed to have certified to the
Prudential and the holders of the Notes that the certificate dated February 9, 2012 and signed by the Secretary of Green Line Polymers, Inc. remains true, correct and complete on and as of the Effective Date. 

3.4. Material Adverse Effect. Since March 31, 2012, no event causing a Material Adverse Effect shall have occurred with respect to
the Company or the Guarantors. 
 3.5. Fees of Special Counsel to Prudential. All reasonable and documented fees, charges and
disbursements of counsel to Prudential and the holders of the Notes to the extent invoiced on or prior to the Effective Date shall have been paid (which shall be paid directly to such counsel). 

3.6. Representations. All statements set forth in Section 2 shall be true and correct as of the Effective Date, except to the
extent that any such statement expressly relates to an earlier date (in which case such statement was true and correct on and as of such earlier date). 

3.7. Proceedings. All corporate and other proceedings taken or to be taken in connection with the transactions contemplated by
this letter agreement shall be satisfactory to Prudential and each holder of a Note and its counsel, and Prudential and each holder of a Note shall have received all such counterpart originals or certified or other copies of such documents as they
may reasonably request. 

  
 - 3 - 

 SECTION 4. Reference to and Effect on Note Agreement; Ratification of Note
Agreement. Upon the effectiveness of the amendments to the Note Agreement made in this letter agreement, each reference to the Note Agreement in any other document, instrument or agreement shall mean and be a reference to the Note Agreement
as modified by this letter. Except as specifically set forth in Section 1 hereof, the Note Agreement shall remain in full force and effect and is hereby ratified and confirmed in all respects. Except as specifically stated in this letter, the
execution, delivery and effectiveness of this letter shall not (a) amend the Note Agreement or any Note, (b) operate as a waiver of any right, power or remedy of any holder of a Note, or (c) constitute a waiver of, or consent to any
departure from, any provision of the Note Agreement or Note at any time. Nothing contained in this letter agreement shall be construed as a course of dealing or other implication that Prudential and any holder of a Note has agreed to or is prepared
to grant any consents or agree to any amendments to the Note Agreement or any Note in the future, whether or not under similar circumstances.  

SECTION 5. Expenses. The Company hereby confirms its obligations under the Note Agreement, whether or not the transactions
hereby contemplated are consummated, to pay, promptly after request by Prudential or any holder of a Note, all reasonable out-of-pocket costs and expenses, including attorneys’ fees and expenses, incurred by Prudential or such holder of a Note
in connection with this letter agreement or the transactions contemplated hereby, in enforcing any rights under this letter agreement, or in responding to any subpoena or other legal process or informal investigative demand issued in connection with
this letter agreement or the transactions contemplated hereby. The obligations of Company under this Section 5 shall survive transfer by any holder of a Note of any Note and payment of any Note. 

SECTION 6. Governing Law. THIS LETTER SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, AND THE RIGHTS OF THE PARTIES SHALL BE
GOVERNED BY, THE LAW OF THE STATE OF NEW YORK (EXCLUDING ANY CONFLICTS OF LAW RULES WHICH WOULD OTHERWISE CAUSE THIS AGREEMENT TO BE CONSTRUED OR ENFORCED IN ACCORDANCE WITH, OR THE RIGHTS OF THE PARTIES TO BE GOVERNED BY, THE LAWS OF ANY OTHER
JURISDICTION). 
 SECTION 7. Reaffirmation. Each Guarantor hereby consents to the foregoing amendment to the Note
Agreement and hereby ratifies and reaffirms all of their payment and performance obligations, contingent or otherwise, under the Guaranty Agreement after giving effect to such amendment. Each Guarantor hereby acknowledges that, notwithstanding the
foregoing amendment, that the Guaranty Agreement remains in full force and effect and is hereby ratified and confirmed. Without limiting the generality of the foregoing, each Guarantor agrees and confirms that the Guaranty Agreement continues to
guaranty the Guarantied Obligations (as defined in the Guaranty Agreement) arising under or in connection with the Note Agreement or any of the Shelf Notes, as the same are amended by this letter agreement. 

SECTION 8. Counterparts; Section Titles. This letter may be executed in any number of counterparts and by different parties
hereto in separate counterparts, each of which when so executed and delivered shall be deemed to be an original and all of which when taken together shall constitute but one and the same instrument. Delivery of an executed counterpart of a signature
page to this letter by facsimile shall be effective as delivery of a manually executed counterpart of this letter. The section titles contained in this letter are and shall be without substance, meaning or content of any kind whatsoever and are not
a part of the agreement between the parties hereto. 
 [signature page follows] 

  
 - 4 - 

 
			
	Very Truly Yours,
	
	 PRUDENTIAL INVESTMENT MANAGEMENT, INC.

		
	By:	 	 /s/ David Quackenbush

		 	Vice President
	
	THE PRUDENTIAL INSURANCE COMPANY OF AMERICA
		
	By:	 	 /s/ David Quackenbush

		 	Vice President
	
	 PRUDENTIAL RETIREMENT INSURANCE

    AND ANNUITY COMPANY

		
	By:	 	Prudential Investment Management, Inc., as investment manager
		
	By:	 	 /s/ David Quackenbush

		 	Vice President
	
	PRUCO LIFE INSURANCE COMPANY
		
	By:	 	 /s/ David Quackenbush

		 	Vice President

 AMENDMENT NO. 4 TO AMENDED AND RESTATED PRIVATE SHELF AGREEMENT 

			
	Accepted and Agreed:
	
	COMPANY:
	
	ADVANCED DRAINAGE SYSTEMS, INC.
		
	By:	 	 /s/ Mark B. Sturgeon

	Name:	 	Mark B. Sturgeon
	Title:	 	Secretary and Treasurer
	
	GUARANTORS:
	
	ADS WORLDWIDE, INC.
	PSA, INC.
	ADS STRUCTURES, INC.
	ADS VENTURES, INC.
	ADS INTERNATIONAL, INC.
	HANCOR HOLDING CORPORATION
	HANCOR, INC.
	MEDIA PLUS, INC.
	HANCOR INTERNATIONAL, INC.
	SPARTAN CONCRETE, INC.
	SEWER TAP, INC.
	ADVANCED DRAINAGE OF OHIO, INC.
	GREEN LINE POLYMERS, INC.
		
	By:	 	 /s/ Mark B. Sturgeon

	Name:	 	Mark Sturgeon
	Title:	 	Secretary and Treasurer
	
	STORMTECH LLC
		
	By:	 	 /s/ Ronald R. Vitarelli

	Name:	 	Ronald R. Vitarelli
	Title:	 	General Manager

 AMENDMENT NO. 4 TO AMENDED AND RESTATED PRIVATE SHELF AGREEMENT 

 Schedule 6J 

Existing Joint Ventures 
  

									
	 Name
	  	Jurisdiction	  	Organization	 	 Equity Owner
	  	Percentage
Owned
	 ADS Mexicana, S.A. de C.V.1
	  	Mexico	  	Corporation	 	ADS Worldwide, Inc.	  	51%
		  	  	 	 Grupo Altima, S.A. de C.V.
	  	49%
	 ADS Corporativo, S.A. de C.V.2
	  	Mexico	  	Corporation	 	ADS Worldwide, Inc.	  	51%
		  	  	 	 Grupo Altima, S.A. de C.V.
	  	49%
	 Tuberías Tigre-ADS Limitada
	  	Chile	  	Socìedad de
responsiblìdad
limitada	 	Tubos y Plásticos ADS Chile Limitada	  	50%
		  	  	 	 Tigre Chile S.A.
	  	50%
	 Tubos y Plásticos Tigre-ADS de Chile Limitada
	  	Chile	  	Socìedad de
responsiblìdad
limitada	 	Tuberías Tigre-ADS Limitada	  	99.99998%
		  	  	 	 Tubos y Plásticos ADS Chile Limitada
	  	0.00001%
		  	  	 	 Tigre Chile S.A.
	  	0.00001%
	 Tubos Tigre-ADS do Brasil Limitada
	  	Brazil	  	Sociedad de
responsabilidad
limitada	 	Tuberías Tigre-ADS Limitada	  	99.8%
		  	  	 	 Tubos y Plásticos ADS Chile Limitada
	  	0.1%
		  	  	 	 Tigre Chile S.A.
	  	0.1%
	 Tigre-ADS Colombia Limitada
	  	Colombia	  	Socìedad de
responsiblìdad
limitada	 	Tuberías Tigre-ADS Limitada	  	98.04%
		  	  	 	 Tubos y Plásticos ADS Chile Limitada
	  	0.98%
		  	  	 	 Tigre Chile S.A.
	  	0.98%
	 Tigre-ADS Argentina S.R.L.
	  	Argentina	  	Socìedad de
responsiblìdad
limitada	 	Tuberías Tigre-ADS Limitada	  	95%
		  	  	 	 Tubos y Plásticos ADS Chile Limitada
	  	2.5%
		  	  	 	 Tigre Chile S.A.
	  	2.5%
	 ADSM Centro América, Sociedad Anónima
	  	Republic
of Costa
Rica	  	Corporation
 (sociedad
anónima)
	 	ADS Mexicana, S.A. de C.V.	  	100%
	 Grupo Industrial Deplayusa S.A. de C.V.
	  	Mexico	  	Corporation	 	ADS Mexicana, S.A. de C.V.	  	100%
	 Tigre ADS Perú S.A.C.3
	  	Peru	  	Private law
legal entity	 	Tuberías Tigre-ADS Limitada	  	95%
		  	  	 	 Tubos y Plásticos Tigre-ADS de Chile Limitada
	  	2.5%
		  	  	 	 Tigre Chile Limitata
	  	2.5%

  

	1 	Permitted to be consolidated under Generally Accepted Accounting Principles, but treated as a Joint Venture under this Agreement. 

	2 	Permitted to be consolidated under Generally Accepted Accounting Principles, but treated as a Joint Venture under this Agreement. 

	3 	Formation of the entity is currently in process. 

  
 AMENDMENT NO. 4 TO
AMENDED AND RESTATED PRIVATE SHELF AGREEMENT

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