FIFTH AMENDMENT TO CONSTRUCTION LOAN AGREEMENT

Exhibit 10.2

FIFTH AMENDMENT TO CONSTRUCTION LOAN AGREEMENT

This Fifth Amendment to Construction Loan Agreement is dated as of the 17 ^th day of July, 2008, and is by and between RED TRAIL ENERGY, LLC, a North Dakota limited liability company (“BORROWER”), and FIRST NATIONAL BANK OF OMAHA (“BANK”), a national banking association established at Omaha, Nebraska.

WHEREAS, the BANK and BORROWER executed a written Construction Loan Agreement dated as of December 16, 2005 (“AGREEMENT”).

Now, Therefore, in consideration of the AGREEMENT, and their mutual promises made herein, BANK and BORROWER agree as follows:

     1. Terms which are typed herein as all capitalized words and are not defined herein shall have same meanings as when described in the AGREEMENT.

     2. Effective immediately, Section 1.24 of the AGREEMENT is amended to read:

     1.24 “LOAN TERMINATION DATE” means the earliest to occur of the following: (i) as to the REVOLVING NOTE, July 16, 2009, as to FIXED RATE NOTE, 2007 FIXED RATE NOTE, VARIABLE RATE NOTE and as to LONG TERM