First Supplemental Indenture, dated December 31, 2007



 Exhibit 4.9 
 FIRST SUPPLEMENTAL INDENTURE 
 FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental
Indenture”), dated as of December 31, 2007. 
 Capitalized terms used but not defined herein shall have the meanings ascribed
to them in the Indenture (as defined below). 
 WHEREAS, VeraSun Energy Corporation, a South Dakota corporation, as issuer (the
“Issuer”), VeraSun Aurora Corporation, a South Dakota corporation, VeraSun Fort Dodge, LLC, a Delaware limited liability company, VeraSun Charles City, LLC, a Delaware limited liability company, VeraSun Marketing, LLC, a Delaware limited
liability company, VeraSun Welcome, LLC, a Delaware limited liability company, VeraSun Hartley, LLC, a Delaware limited liability company, VeraSun Granite City, LLC, a Delaware limited liability company, VeraSun Reynolds, LLC, a Delaware limited
liability company, and VeraSun Biodiesel, LLC, a Delaware limited liability company, as Subsidiary Guarantors, and Wells Fargo Bank, N.A., as trustee, are parties to an Indenture dated as of May 16, 2007 (as it may be further amended or
supplemented from time to time, the “Indenture”), relating to the Company’s 9 3/8% Senior Notes due 2017 (the “Notes”). 
 WHEREAS, Section 9.1(5) of the Indenture allows the Issuer to add a Subsidiary Guarantor without notice or consent of any Holder. 
 NOW, THEREFORE, for good and valuable consideration, the receipt of which is acknowledged, the parties hereto agree as follows: 
 1.1 New Subsidiary Guarantors. By executing this First Supplemental Indenture and the Note Guarantees referred to in Section 1.2 hereof, VeraSun Litchfield, LLC, a Delaware limited liability company (“VeraSun
Litchfield”), and VeraSun Tilton, LLC, a Delaware limited liability company (“VeraSun Tilton”), hereby agree to guarantee the Issuer’s obligations under the Notes on the terms and subject to the conditions set forth in
Article XII of the Indenture and the Note Guarantees. 
 1.2 Note Guarantee. Each of VeraSun Litchfield and VeraSun Tilton has
duly executed and hereby delivers to the Trustee a Note Guarantee with respect to its obligations as a Subsidiary Guarantor under the Indenture. From and after the date hereof, each of VeraSun Litchfield and VeraSun Tilton shall be a Subsidiary
Guarantor for all purposes under the Indenture and the Notes. 
 IN WITNESS WHEREOF, the undersigned have caused this First Supplemental
Indenture to be duly executed as of the date first written above. 
  

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	 VERASUN ENERGY CORPORATION,
 as
Issuer

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN AURORA CORPORATION,
 as Guarantor


		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN FORT DODGE, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN CHARLES CITY, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN MARKETING, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN WELCOME, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President


  

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	 VERASUN HARTLEY, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN GRANITE CITY, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN REYNOLDS, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN BIODIESEL, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 VERASUN LITCHFIELD, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President


  

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	 VERASUN TILTON, LLC,
 as
Guarantor

		
	By:	 	 /s/ Danny C Herron

	Name:	 	Danny C. Herron
	Title:	 	President
	
	 WELLS FARGO BANK, N.A.,
 as
Trustee

		
	By:	 	 /s/Jane Y. Schweiger

	Name:	 	Jane Y. Schweiger
	Title:	 	Vice President


  

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