Small-scale / illegal mines are a big issue in China and India, so I suppose it can be commingled into that chain: https://e360.yale.edu/features/china-wrestles-with-the-toxic...

Most platinum group metals come from Africa. Not that the transparency is any better there.

in the uk there are laws requiring logs and proof of identity when trading scrap metal.

I suspect with Catalytic Converter thefts, the CATs are small enough and light enough to be shipped abroad

In my city (YO1) we had a gang of Eastern Europeans committing this crime regularly and in quantity.

They were eventually caught with container loads of cat's on their way to Europe.

Same in Oregon. I was on a grand jury here and metal dealing without paperwork is a felony. I asked the DA and he said this is why

These laws are common in the US too.

Rhodium is so valuable you can fit tens of millions of dollars of it in a suitcase.

And then you sell it to an actual rhodium mine who just so happens to be particularly productive that month.

> And then you sell it to an actual rhodium mine who just so happens to be particularly productive that month.

Surely its easier to keep an eye on all rhodium mines, rather than trying to keep an eye on all scrap metal yards.

Yes the only thing in the way is a huge international lobby industry that pays politicians to turn a blind eye to systemic labour and environmental exploitation.

I haven't looked into it in detail but I would be very surprised if this process was as simple as melting down some stolen lead flashing, surely it isn't the kind of thing you can do with a camping stove and an old pot?

There must be limited facilities with the ability to extract and purify the rhodium content.

I could. But not with a camping stove and I may have to feed some additional oxygen. But yes, doable in your backyard