I'm Yurpeen and knew about this. I also knew (something) about big US corporate involvement in Nazi Germany. I haven't read, but have just ordered, Trading With the Enemy by Charles Higham, and Wall Street and the Rise of Hitler by Antony C Sutton. (From Abebooks, both are out of print).

Sutton also wrote a book on Wall St and the Bolsheviks, in which he apparently showed similar investment in the Soviet Union - the thesis being that the corporate future was seen to lie in being comfortably ensconced in totalitarian systems of whatever bent. Yet a strong impression I get from the time is that monied interests (not only in the US) saw the Nazis as a bulwark against the Reds. No doubt a major subject there for a good historian.