http://edition.cnn.com/2012/03/13/world/asia/china-rare-earths-ca...

http://edition.cnn.com/2012/03/13/world/asia/china-rare-earths-case/index.html

The EU statement said the challenge to the WTO targets raw materials including 17 rare earths such as cerium, neodymium and dysprosium, as well as tungsten and molybdenum. The elements and substances are used in high-tech and "green" businesses, as well as in cars, machinery manufacturing, chemicals and steel.

Tungsten is used in lighting technology, in electronics and in automotive, aerospace and medical technologies, the EU statement said. China produces 91% of the world's tungsten.

Molybdenum is a metallic element used for filaments in light bulbs. China produces 36% of the world's molybdenum, according to the EU statement.