Keith Kor

One frosty morning soon in Winnebago, Minn.—perhaps near the blazing-white welcome sign promoting the town’s annual celebration, Motofest—you might catch a local or two stretching a colorful vinyl banner above U.S. 169.

Perhaps it will say: Welcome to Winnebago. Home of Corn Plus. In 2005, first in the world to make ethanol production truly energy efficient.

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