China may tighten environmental controls on rare earth mining, further raising the cost of metals vital to global high-tech industry, Xinhua news agency said yesterday.
The report will add to international concern over the supply of the minerals needed to produce items such as cellphones, missiles and solar energy panels. China now produces 97 percent of the world’s supply and has recently been -accused of blocking rare earth -exports to Japan.
Xinhua cited industry insiders as saying Chinese authorities are considering tightening pollution standards for rare earth miners, which will increase the cost of production and may raise the price of rare earth exports.
Yang Wanxi, a government adviser involved in the drafting of new regulations on rare earths, was cited as saying the standards were aimed at forcing producers to upgrade production techniques. Experts have suggested that the government consider eliminating small producers with annual production capacity of less than 8,000 tonnes of mixed rare earth products, Yang said.
Most of the industrialized world, including the US, Japan and Europe, have largely abandoned their production of rare earths in favor of cheaper Chinese exports, but there are now mounting calls for nations to work to diversify supply.
Japanese companies say that China has blocked exports of rare earths to them since September, amid a dispute between the two governments over islands in the East China Sea.
Chinese officials last week assured US Secretary of State Hillary Rodham Clinton that China would remain a reliable supplier.
However, Clinton has made clear that countries like Australia and the US need to act to protect the supply.
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