Cerro de Pasco Resources advances the Quiulacocha project, recovering 941 TP3T of silver in pilot tests
Cerro de Pasco Resources reported new advances in the Quiulacocha Project, initiative focused on the reprocessing of mining tailings in the region Pasco, having obtained positive results from its integrated metallurgical test program. The company highlighted that the assays performed to date support the development of a processing scheme based on two concentrates and show high recovery of Silver and sulfides.
According to the company, laboratory and pilot-scale testing made it possible to recover approximately 94% of the silver contained in the samples analyzed, in addition to more than 92.5% of the sulfurous totals present in the analyzed material. The results are part of a campaign comprising more than 110 metallurgical tests performed at various specialized centers.
The metallurgical proposal currently under evaluation contemplates the production of two concentrate streams. The first corresponds to a high-grade pyrite concentrate, and the second to a base metal concentrate that would include zinc, lead, copper, and silver. According to the company, this approach would maximize the recovery of minerals contained in historical tailings Quiulacocha.
Steven Zadka, Executive Chairman of Cerro de Pasco Resources, he pointed out that the program has allowed a transition from laboratory results to continuous tests in a pilot plant, a relevant step to evaluate the project's technical potential. Likewise, he indicated that a significant portion of the silver is recovered along with the sulfides, which opens opportunities for its subsequent utilization through complementary processes.
One of the most relevant findings of the study corresponds to the high pyrite content identified in the tailings of Quiulacocha. Mineralogical analyses determined that this mineral accounts for more than 50% of the evaluated material, a finding that led the company to develop a specific strategy to recover value from this fraction through the production of a specialized concentrate.
The company believes that said concentrate could have applications in industries linked to the production of sulfuric acid, fertilizers, and other industrial processes that require sulfur sources. In that context, Cerro de Pasco Resources indicated that preliminary discussions have already been held with potential interested parties for the supply of this material, although he clarified that no definitive commercial agreements yet exist.
The studies also identified favorable indications for the potential recovery of strategic elements such as gallium and indium. Although these investigations are in an early stage, the company has initiated exploratory tests to determine the feasibility of concentrating both metals from different streams generated during the treatment process of tailings.
As part of the next phase of work, Cerro de Pasco Resources will continue to optimize the metallurgical circuit through new pilot tests and studies aimed at improving the separation of base metals and the quality of the pyrite concentrate. Additionally, the company plans to move forward with additional drilling programs, resource definition, and technical evaluations that will serve as the basis for future development decisions of the Quiulacocha Project.
The Project Quiulacocha is part of the strategy of Cerro de Pasco Resources to reprocess tailings accumulated over decades of mining activity in the area, with the goal of recovering economically valuable metals and, at the same time, contributing to the remediation of historical environmental liabilities in one of the country's most important mining districts.
Waters and Tailings 2026 will address water management and environmental liabilities
The advancement of Quiulacocha Project This is directly linked to the themes that will be part of the International Congress on Water and Tailings 2026, organized by InterMet, which will be held on June 11 and 12 at the Hotel José Antonio Deluxe in Lima. The event will bring together national and international specialists to analyze the challenges of water management, tailings governance, sustainability, and the reuse of environmental liabilities in mining.
For information, interested parties can contact 987 975 959 or write to congresos1@encuentrometalurgia.com and informes@encuentrometalurgia.com
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