General Info Material being extracted: Cu and Zn Timeframe: 36 months Type of project: Open Pit Status: On going Scope: Heightening of the 4434.6 - 4150 tailings dam, construction of 02 new dams and heightening of the Polishing Pond dam, and construction of the Ayash, Tucush, Llata accesses. Work to be executed: Excavations 400k m3. Backfilling of granular materials 16 million m3. Pouring of concrete 20k m3. Installation of bituminous geomembrane 37k m2. HDPE geomembrane installation 94k m3. Drilling for installation of anchor bolts and injections.