On 31 March 2011, the Chinese Ministry of Land and Resources released the Circular on Upper Limit of Limit of Mining Amount of Rare Earth, Antimony and Tungsten in 2011.
 
In accordance with this Circular, the upper limit of Rare Earth (REO) is 93,800 tons, among which Light Rare Earth (LREE) is 80,400 tons, the Middle and Heavy Rare Earth (MHREE) 13,400 tons; the upper limit of Antimony is 10,500 tons; the upper limit of Tungsten is 87,000 tons.
 
In 2010, the upper limit for mining of rare earth was 89,200 tons, among which light rare earth (LREE) was 77,000 tons. The limit for middle and heavy rare earth (MHREE) was 12,200 tons, for antimony 10,000 tons, and for tungsten 80,000 tons.
 
Comparing with upper limit of relevant minerals of last year, the 2011 upper limit of rare earth with an increase of 5.15% year-on-year base; the Tungsten with an increase of 8.75%; and the Antimony with an increase of 5%.