Can you even sell stuff to North Korea or Iran? Arent they on some embargo? A friend told me that someone in his very big company sold some random stuff to Nor

Can you even sell stuff to North Korea or Iran? Arent they on some embargo? A friend told me that someone in his very big company sold some random stuff to North Korea and now 1) they have obligatory training not to sell there 2) they have to go through obligatory training on non proliferation of nuclear weapons