We are looking for the supplier of zinc and lead concentrate and copper concentrate and zinc, lead,copper ash etc.mineral products. If any supplier&seller can supply above products, please contact with us . Our contact information is as following :Gina Gong========================================================Company: Hunan Yinhe Advanced Materials?echnology?orp.ADD : Baisha Town, Luxi County, Xiangxi, Hunan Province, China (Mainland)Tel:0086-0743-4261866??Mobile:0086-18374345661We welcome suppliers from all over the world,we prefer you supply big amount each month. We are looking forward for your kind reply.Thanks.