Low Investment High Profitability Lead Ore Process

Spot tcs , or fees that miners pay smelters to process zinc ore into refined metal, have climbed relentlessly in 2019 to an 11-year high of 290 a tonne, as fast-rising mine supply overwhelms limited smelting capacityhe more than a decade-high tc is a strong incentive for zinc smelters to produce as much metal as they can, hobbs said.