The EU recently opened a mechanism to allow banks to interact with Iran (INSTEX; https://en.wikipedia.org/wiki/Instrument_in_Support_of_Trade... ). It is realtively recent and idk how much it will be used, but it is not an unsolvable problem (with some overhead).
There is huge pressure from the US to shut down that special trade mechanism even though none of countries involved support further sanctions. Numerous banks have backed away from it.
It's a token effort on the part of Europe to salvage the nuclear treaty that everyone agrees Iran is complying with. Even US intelligence publicly acknowledge it.
Amazed that NK can believe in any sort of deal after seeing what happened to Iran.
