How did the Koch Bros get thier money? from nazi camps?

Koch Brothers Behind “Healthy Formaldehyde” Campaign

Oddly enough, the fiercely capitalist Koch family owes part of its fortune to Joseph Stalin. Fred Koch was the son of a Dutch printer who settled in Texas and ran a weekly newspaper. Fred attended M.I.T., where he earned a degree in chemical engineering. In 1927, he invented a more efficient process for converting oil into gasoline, but, according to family lore, America’s major oil companies regarded him as a threat and shut him out of the industry. Unable to succeed at home, Koch found work in the Soviet Union. In the nineteen-thirties, his company trained Bolshevik engineers and helped Stalin’s regime set up fifteen modern oil refineries.