Cerro de Pasco Resources Inc. (“CDPR”) is a resource management company, founded in 2012 and publicly listed in Canada in 2018, with the purpose of treating and reprocessing all dumps, tailings, mining waste and material resources in the Cerro de Pasco Region in Peru. Our ambition is to restore long-term sustainability to the mining activity in the Cerro de Pasco Region, in harmony with a healthy and motivated local population. Our team brings first-hand experience and ideas based on innovative solutions and a holistic approach, aiming to create numerous opportunities in a circular economy.
The Quiulacocha tailings deposit covers approximately 115 hectares with tailings deposited in the Quiulacocha Tailings Storage Facility (TSF) from the early 1920´s to 1992. Approximately 57 ha of the Quiulacocha TSF lies within CDPR’s El Metalurgista mining concession. Initially these tailings resulted from the mining of copper-silver-gold mineralization with reported historical head grades of up to 10% Cu, 4g/t Au and over 300g/t Ag and later from the mining of zinc-lead-silver mineralized material with average historical grades of 7.41% Zn, 2.77% Pb and 90.33g/t Ag.
The Excelsior Stockpile covers a surface area of 67.92ha and contains approximately 70 Mt of broken rock. The stockpile was in use between approximately 1970 and 1996 to store what was then considered uneconomic/low grade mineralization from the Raul Rojas open pit. The surface area of the Excelsior stockpile lying within the El Metalurgista mining concession is approximately 35ha. CDPR recently issued an Inferred Mineral Resource of 30.10 Mt grading 44 g/t Ag, 0.6% Pb and 1.5% Zn, containing 42.9 Million ounces of silver, 437,000 tonnes of zinc and 184,000 tonnes of lead. The Excelsior Mineral Resource has potential to increase significantly if CDPR can acquire government owned surface rights that surround the El Metalurgista concession.
The Institute of Mining Engineers of Peru is grateful to Cerro de Pasco Resources Inc for sponsoring the translation of this book to English.