world politics, tariffsso, ignorant question: does it make any sense to impose tariffs to specific countries inside EU's single market? can't businesses from those countries just register a subsidiary in a different one and sell to the US from that entity?
world politics, tariffs@kitten No. Rules of Origin are a highly complex topic, but the origin of a product is always determined by where it was sourced or manufactured (and yes, there are a lot of extremely specific rules governing in detail just how much manufacturing you need to do in a country to consider this country its origin, just wrapping it in foil in Hungary won't turn a product manufactured in the Netherlands Hungarian). You might end up with Australian iron ore which is turned into Chinese metal components which end up in a German machine, for example. Your local chamber of commerce will then issue a certificate of origin for your product, which is part of the shipping documents and required for customs processing.
world politics, tariffs@kitten the one thing where the whole "exporting through a transit country" thing is done by the way is when it comes to circumventing sanctions and export bans. This rarely works to conceal the origin of a product (particularly not in transparent states with rule of law as you would find in the EEA), but it can sometimes work to conceal its destination.
world politics, tariffs@star I mean, but it's not like the third country has "done anything", is it? are they supposed to stop the creation of the legal entity or something? impose a trade embargo?
world politics, tariffs@kitten Also in this case I think the country/federation trying to impose the tariffs would notify that state of what is happening pretty quickly