It is currently the largest zinc smelter in Latin America and the seventh largest zinc smelter in the world in 2018. Nexa is currently collecting combined benefits of the PI System and AVEVA Predictive Analytics. In very short period, insights generated by combination Machine Learning Predictive Maintenance on both assets with several sensors and assets with limited number of variables. The first implementation of predictive Analytics in Zinc industry. As a result, we have successful with ROI of 300% within a few months, savings related to avoided failures of MU$1.