Pr-1 :

　　TREM 99.5% min Pr/TREM 99～99.9%
　　Fe <0.2% Si <0.03% Ca <0.01% Mg <0.01%
　　Al <0.05% W <0.03% Mo <0.05% C <0.03%
　　O <0.05% Cl <0.01%

Pr-2:

　　TREM 99.0% min Pr/TREM 99.0 ～ 99.5%
　　La/TREM 0.015 ～ 0.03% Ce/TREM 0.01 ～ 0.03%
　　Nd/TREM 0.4 ～ 0.7% Sm/TREM < 0.03%
　　Y/TREM <0.01%
　　Fe 0.1～0.2% Si 0.03～0.05% Ca 0.01～0.03%
　　Mg 0.01～0.03% C 0.03～0.05% Cl 0.01～0.0 3%

2、 Shape and purpose ：

　　blocky ,mainly used as SmPrCo PrFeB magnetic materials .

3、Package:

　　 In iron drum with inner plastic bag.