Tailings and low-grade refractory ore processing comprehensive utilization and renovation project -- Nandan Southern Non-ferrous Metals Co., Ltd.

The project is located in Kangma Mining area of Nandan Nanguo Mining Co., LTD., East longitude 107°39'41.4", north 24°51 '28.6"The average annual temperature is 16.9C, the average monthly temperature is 24.6 C, the average monthly temperature is 7.4 C, the temperature is 35.5 C, the  temperature is -5.5 C, the average annual relative humidity is 83%, the average annual rainfall is 1497.9mmThe earthquake intensity is 6 degrees, and the altitude is 398m. The total investment of the project is 126.1616 million yuan, the annual tailings processing capacity of the concentrator is 600000t, and the product plan is  antimony concentrate (Pb+Sb38%)6000t/a, zinc concentrate (Zn48%)13200t/a, tin concentrate (Sn42%)1800t/a, sulfur concentrate (S30%)78000t/a.