I'm vaguely more familiar with diamonds rather than metals. Conflict Diamonds and metals (commonly) mean a mine run by slave labor with all proceeds going to fi

I'm vaguely more familiar with diamonds rather than metals. Conflict Diamonds and metals (commonly) mean a mine run by slave labor with all proceeds going to finance a war. It's an easy thing to confuse. Your model, no components from any country at war is admirable, but not likely feasible.