Although our friends in Asia, Europe and Canada had been fighting the Axis for at least a year and a half, American corporations continued to trade with the fascists all the way up until the U.S. declaration of war. This 1941 article, published seven months prior to that day, goes into some detail on the matter; although corporations are not named, it is pretty easy to identify them by their products.
One reason why America today is short of ships to fill Britain’s desperate needs is [due to] the fact that for six years or more, Japan and her scrap agents bought almost every American cargo vessel placed on the auction blocks, using them for scrap to feed the blazing steel mills of Nipon.