Already climbed a few years back before Molycorp started...

Already climbed a few years back before Molycorp started producing RE then went bust because they couldn't turn a profit competing with China producers flooding the market. Lynas was another one that got the plant off the ground because of the high prices but has been losing money for years and almost went bust before it was "saved" by the issue of billions of shares and bonds and only recently made a small profit on the RE price spike last year. And that only because they have a 12 years tax exemption in Malasia. Would be surprised if it didn't get they Malasian plant shut down when their licence is up for renewal next year, mainly due to protesters, and their mine in WA end up in Chinese hands just like Molycorp mine, in NTU hands or maybe bought by the yanks to feed the old Moly processing plant if the Chinese won't supply them concentrate from the old Moly mine . Of course all that is just speculation because the Chinese are unlikely to push up the prices to far since rare earths are not that rare and anyone with enough money can build a processing plant as they found out last time the prices went through the roof so is in their interest to keep the prices in balance and stop any new producers entering the market.
NTU has a good niche here selling concentrate to China for further refining but don't like their chances spending billions to build a downstream plant just so they could compete with the Chinese for the same market. Moly & Lynas are good examples of why not. Also check out ARU as they also looking at getting into the game soon and just like NTU they haven't got the massive debt or plant issues that Lynas has with LAMP in Malaysia.