On August 27, 2013, Heron Lake BioEnergy, LLC finalized Amendment No. 1 to Sixth Amended and Restated Master Loan Agreement with AgStar Financial Services, PCA. The Amendment amends certain provisions of the Sixth Amended and Restated Master Loan Agreement dated May 17, 2013 (the MLA) by and between the company and AgStar.

The Amendment is effective as of July 31, 2013, which is the same date on which Granite Falls Energy, LLC (GFE) indirectly, through Project Viking, L.L.C., acquired a majority of the company's outstanding membership units and the same date on which GFE and the company entered into a Management Services Agreement, under which GFE supplies its personnel to act as part-time officers and managers of the company for the positions of Chief Executive Officer, Chief Financial Officer and Commodity Risk Manager.