That's swell news for all manufacturers who need rare-earth metals in their products.

"Neodymium, found in high-performance magnets, is trading at about $66 per kilogram. Having dropped 20-30% from April, it is now at levels seen before a surge that began in 2010. Dysprosium is hovering around $350 per kilogram, also a five-year low.

After Sino-Japanese relations soured in 2010 over disputed islands, Beijing reduced export quotas, sending prices up sevenfold.

China accounts for 70-80% of the global rare-earth supply. But after losing a case in the World Trade Organization, Beijing dropped the quota system this year and eliminated export tariffs May 1."