We Buy Copper Ore Content Above 10%

we need the copper ore for long time:
. Name of the Product : copper 
（1）copper concentrate ≥ 15%，sulfur≥ 25%
（2）copper ore ≥ 10 %
 Sulfide or oxide both ok 
As<0.5%,Cl<0.5%,Cd<0.05%, Hg<0.01%,Pb+Zn<6%
if you have the offer do we need,pelase feel free tp contact me