Looking for a supplier of lead ore and concentrate

Our company, located in China, is interested in lead cargo:
Name of the Product : lead 
（1） lead ore  ≥ 40%
（2） lead concentrate ≥ 40%,sulfur≥ 25%
（3）lead compound≥ 50 %
 Sulfide or oxide both ok 
 As<0.5%,Cl<0.5%,Cd<0.05%, Hg<0.01%, F<0.1