Reconversion of Las Pintadas Plant

Description: Reconversion of the Las Pintadas Plant Mining development projects over 5,000 tons/month The Las Pintadas Plant Reconversion Project consists of the processing of Cu, Fe and Au minerals at a monthly rate of 40,000 tons, through the recovery of iron from copper ores, at a rate of 12,000 tons per month. Additionally, it is intended to market crushed copper ore, product of the magnetic separation process, which has Cu and Au, at a rate of 14,400 tons per month. This enabling some of the facilities of the old Las Pintadas Precipitation Plant. The ore to be processed will come from the Tigresa Mining Project, which corresponds to an underground mine owned by the Holder. The Tigresa resource model has an estimate of 2,305,517 t corresponding to ore with grades of 0.77% Cu, 0.18 g/t Au and 20.91% Fe available for magnetic concentration. However, the owner intends to buy similar minerals from small and medium-sized miners in the sector, in addition to leaving open the possibility of supplementing the income of minerals from other properties it owns in the sector, such as the Mina Resguardo deposit located in the vicinity of the project. The magnetic concentration process that is considered for the design of the plant is supported by metallurgical tests and pilot tests that correspond to ore crushing and subsequent processing by concentration in magnetic drums to obtain a magnetic concentrate with an Fe content of between 40% to 60% and a rejection with an enriched grade of Cu. The final Fe concentrates will be commercialized with CAP and the Cu-Au magnetic rejects will be commercialized locally as flotation ore. On the other hand, a disposal of the concentration process without commercial value is expected, which will be disposed of in the dump enabled for the Las Pintadas Plant. The objective of the project is the recovery of iron from copper minerals, at a rate of 12,000 tons per month. Additionally, it is intended to market crushed copper ore, product of the magnetic separation process, which has Cu and Au, at a rate of 14,400 tons per month. The rest of the material, 13,600 tons per month, will be taken to the dump.