Basically everyone did. The USSR continued exporting raw material and importing weaponry until 1940 I think. FDR put a 25% terrif on German goods after Poland, but there wasn't a strict ban on relations. Companies were still allowed to continue trade with Germany, but once the war started, it was a bit difficult being that you had to do trade through a warzone.
I mean so did the US didn't they?
Basically everyone did. The USSR continued exporting raw material and importing weaponry until 1940 I think. FDR put a 25% terrif on German goods after Poland, but there wasn't a strict ban on relations. Companies were still allowed to continue trade with Germany, but once the war started, it was a bit difficult being that you had to do trade through a warzone.