It gets more complex if a company is multinational though.
A citizen can travel to Iran but even if they buy something there on holiday if they bring it back to the US they need to go through complex customs procedures to make sure its legally brought back in.
Is that relevant here?
> Binance Holdings Ltd., branded Binance, [...] was founded in 2017 by Changpeng Zhao. Binance was initially based in China, then moved to Japan, subsequently left Japan for Malta, and currently has no official company headquarters.
The founder seems to have been born in China and is Canadian.
I still also don't understand if Iran is supposed to be banned on Binance or not.