Rare earth metals have become some of the world's most valued resources.
They are found in almost every car, gadget and household.
After the US stopped the excavation of rare earth materials China now has a monopoly on its production.
http://www.bbc.co.uk/news/world-asia-pacific-13777439
China has said it will cut exports of rare earth minerals by 10% in 2011.
http://www.bbc.co.uk/news/business-12088195
China has said it will cut exports of rare earth minerals by 10% in 2011.
http://www.bbc.co.uk/news/business-12088195
