We regret but have to temporary suspend the shipments to USA

> importers must declare the exact amount of steel, copper, and aluminum in products, with a 100% tariff applied to these materials. This makes little sense—PCBs, for instance, contain copper traces, but the quantity is nearly impossible to estimate.

Wow this administration is f**ing batshit insane. I thought the tariffs would be on raw metals, not anything at all that happens to contain them.

Tarriffs on raw materials in order to boost local manufactring is also insane. That's what needs to be cheap. Corrupt, stupid, evil policies.

I don't disagree with the general premise, but it's not so clear-cut with regards to raw materials.

For example, the US has some of the largest lithium deposits in the world, but it's not being exploited because extraction is dirty and polluting, generally the compliance for opening a new mine is very complex (takes 7-10 years), and catching-up on refinery capacity will take an enormous investment (China does almost all Li refining now).

Similarly, developing the techniques to boost oil extraction (fracking, EOR...) took significant and sustained government support of different kinds until it became competitive, it's unclear if market pressure alone would have done it. This made the US again into the largest exporter rather than the largest importer of oil.

There are many such cases.

Note: I'm not from the US, and I'm not particularly pro-US, I'm not saying that tariffs are a good mechanism to support these industries, and I'm not necessarily in favour of such anti-environmental policies. But those are the facts as I understand them.