Sentences with phrase «earth by mining companies»

Not exact matches

Until the 1990s, the U.S. was the major supplier of rare earths, largely out of one mine in Mountain Pass, Calif., owned by oil company Unocal, now part of Chevron.

In the forest near Barra, mineral rights are held by the mining company CVRD, which could decide at any moment to raze the trees and strip the reddish earth.

The Ministry of Industry and Information Technology has cut China's target output from rare earth mines by 8.1 percent this year — alongside cooling measures for other commodities, including polysilicon — and is forcing mergers of mining companies in order to improve technical standards.