In a decent many of cases there unfortunately just isn't anything to do on practice...

I had to go to a cobalt mine for a finance firm I worked for 8ish years ago and it was one of the most disturbing experiences of my life. But looking in to it when I got home I probably had at least 4-5 things with materials that came from somewhere just like it, and there was absolutely zero alternative...

Half the time you can't even know. I do a decent bit of digging in to supply chains for a living, and someone whose singular job was working 60 hours a week to figure out exact resources origins would barely be able to... When you have company 1 with 10 suppliers for materials/parts and 3-4 backups for each, then each of those suppliers has 10 suppliers for materials/parts and 3-4 backups for each, then each of them uses 5 different wholesalers all with backups, then each of those wholesalers buy raw materials from dozens of different mines, you end up with a chain that is constantly moving and impossible to get to the root of because there genuinely isn't one.