China has recently put increased scrutiny and control over the mining,smelting and export of important minerals like tungsten and rare earth oxides.Note mining in China often takes place illegaly without any regard to environment in quest for a quick buck.Japan which is the largest importer of rare earth oxides from China gets most of its demand met through illegal mining.However China has cracked down on this practise as it regards these minerals like tungsten,iron,rare earth,antimony and molybdenum as important for national goals.China has severely curtailed the exports of rare earth exports leading to a sharp rise in rare earth prices and stocks of rare earth companies.This has sparked concern in developed countries and blocks like EU,Japan and USA which has taken the case to the WTO.