Dear Sir,We are looking for copper ore and copper concentrate.Specification:Cu>10%If you could supply,pls send us the certificate of analysis.Tks&br,Ms.Anna YangHENAN ZHUOER INDUSTRIAL DEVELOPMENT CO.,LTD.Add:NO.13 Shangwu Waihuan Road,Zhengdong New District,Zhengzhou,ChinaZip Code:450016Tel:86-371-65621369Fax:86-371-65744768 69191182 Show More