here is more

Here's an additional excerpt from the Financial Times (http://goo.gl/jLwcA)

"Rare earths prices have been sliding since their peak in July, but the slide has accelerated during the past week. Neodymium, which is used in magnets, has fallen nine per cent, while Lanthanum, which is used in fuel catalytic converters, has fallen 12 per cent, according to prices from Shanghai Metals Market.
Baotou’s move suggests that Chinese efforts to control rare earths prices could be greater than previously thought. Traders have complained since last year that Chinese customs officials were forcing contracts to be rewritten to conform with a “secret list” of acceptably high rare earths prices, but that had less influence on the market during a time when prices were uniformly going up."