According to the small amount of research I did on google, China is the largest tungsten producer in the world(which was posted earlier in this thread).
I like how you phrase things like "tons". Very precise. You make it sound like every year there are tons of weights tossed into a single body of water which is of course absurd.
BTW, "unleaded" bullets are outlawed because they are considered armor piercing, except for copper which is astronomically more expensive than lead and does not shoot nearly as good.