I have looked a tiny little bit into the Indium issue, and I wonder if it's not just a matter of no one ever really cared that much about Indium before. It appears to be as common as silver in the earth. Yet, no one in the west is specifically mining Indium - it is most often a by-product of zinc production (such as for the Canadian company Teck Cominco).

If no one is specifically mining it, and it is as common as silver, then there would seem to be some hope that production of indium could be substantially increased.