Report: World's supply of critical minerals for clean energy is concentrated in fewer countries

The world’s supplies of critical minerals are increasingly concentrated in just a few countries - most notably China - and subject to export restrictions that could painfully crimp industry and the shifter to greener ways of making things based on electricity instead of fossil fuels. That is the conclusion of the International Energy Agency in a report on the availability of minerals and metals that may be small in quantity but large in impact when it comes to making next-generation batteries and electric autos.