Heron Lake BioEnergy, LLC has appointed Michael Mattison to the position of Chief Financial Officer of the company, effective November 26, 2012. Prior to joining the company, Michael Mattison, age 59, served as controller for AgFirst Farmers Cooperative in Brookings, South Dakota, from June 2012 to November 2012. From April 2006 to December 2011, Mr. Mattison served as Chief Financial Officer for Western Wisconsin Energy, LLC.

As Chief Financial Officer, Mr. Mattison was responsible for start-up and ongoing management of all financial and administrative infrastructures for Western Wisconsin Energy.