5. CONCENTRATIONS

Granite Falls Energy

GFE sold all of the ethanol, distillers’ grains, and corn oil produced at its plant to two customers under marketing agreements during the fiscal years ended October 31, 2019, 2018, and 2017.

The percentage of GFE’s total revenues attributable to each of its two major customers for the fiscal years ended October 31, 2019, 2018, and 2017 were as follows:


	October 31, 2019	October 31, 2018	October 31, 2017
Eco-Energy, Inc. - Ethanol	77.5%	77.1%	81.8%
RPMG, Inc. - Distillers' Grains & Corn Oil	22.3%	23.5%	17.8%

The percentage of GFE’s total accounts receivable attributable to each of its two major customers at October 31, 2019 and 2018 were as follows:


	October 31, 2019	October 31, 2018
Eco-Energy, Inc. - Ethanol	60.7%	75.2%
RPMG, Inc. - Distillers' Grains & Corn Oil	36.1%	22.8%

Heron Lake BioEnergy

HLBE sold all of the ethanol, distillers’ grains, and corn oil produced at its plant to three customers under marketing agreements during the fiscal years ended October 31, 2019, 2018, and 2017.

The percentage of HLBE’s total revenues attributable to each of HLBE’s three major customers for the fiscal years ended October 31, 2019, 2018, and 2017 were as follows:


	October 31, 2019	October 31, 2018	October 31, 2017
Eco-Energy, Inc. - Ethanol	77.3%	76.3%	81.3%
Gavilon Ingredients, LLC - Distillers' Grains	16.9%	18.3%	13.7%
RPMG, Inc. - Corn Oil	3.3%	3.7%	4.5%

The percentage of HLBE’s total accounts receivable attributable to each of HLBE’s three major customers at October 31, 2019 and 2018 were as follows:


	October 31, 2019	October 31, 2018
Eco-Energy, Inc. - Ethanol	80.0%	77.6%
Gavilon Ingredients, LLC - Distillers' Grains	15.3%	15.4%
RPMG, Inc. - Corn Oil	2.8%	2.6%