Northwire Canada EditionTuesday, November 3, 2026
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Gold 3,969.60 +1.8% Silver 50.89 +3.3% Copper 6.54 +0.9% Oil 96.46 −7.4% Palladium 962.50 −2.5% QRO 0.030 +0.0% PGC 0.030 +0.0% SASK 0.840 −2.3% GIGA 0.050 +0.0% WDO 26.12 +2.2% ERO 40.76 +0.2% BIRD 0.160 −13.5% ODV 3.20 −1.8% FVI 12.72 +3.1% SRI 0.015 + BTR 0.125 +4.2% NVO 0.065 +8.3% BTT 0.110 +4.8% MUX 19.55 +0.8% SCD 0.150 +0.0% PPX 0.220 +0.0% Gold 3,969.60 +1.8% Silver 50.89 +3.3% Copper 6.54 +0.9% Oil 96.46 −7.4% Palladium 962.50 −2.5% QRO 0.030 +0.0% PGC 0.030 +0.0% SASK 0.840 −2.3% GIGA 0.050 +0.0% WDO 26.12 +2.2% ERO 40.76 +0.2% BIRD 0.160 −13.5% ODV 3.20 −1.8% FVI 12.72 +3.1% SRI 0.015 + BTR 0.125 +4.2% NVO 0.065 +8.3% BTT 0.110 +4.8% MUX 19.55 +0.8% SCD 0.150 +0.0% PPX 0.220 +0.0%
Technical Study Routine +

Cerro de Pasco Resources Advances Metallurgical Test Program; Evaluates Two-Concentrate Flowsheet for Silver-Bearing Pyrite and Base Metals

Cerro De Pasco’s Quiulacocha tailings pilot yields high silver recovery ahead of the first resource estimate to validate scale.

By The Northwire Desk — AI Analysis Jun 09, 2026 · 09:44 CDPR · 0.53 Cerro De Pasco Resources Inc.
Executive Summary
  • The June 9, 2026 release details metallurgical test results for the Quiulacocha Tailings Reprocessing Project in Peru.
  • Testing supports a conceptual two-concentrate flowsheet targeting a high-grade pyrite concentrate and a base metal concentrate, both carrying silver.
  • Mini-pilot results demonstrate >92.5% total sulphide recovery and ~94% silver recovery into a bulk concentrate.
  • Pyrite represents >50% of the tailings, positioning the project to potentially supply an alternative sulphur-bearing feedstock for industrial markets.
  • Bench-scale recovery ranges include 87–95% Ag, 93–99% pyrite, 62–82% Zn, and 60–78% Pb.
  • Head grades from selected composites show Ag at 44.65–55.62 g/t, Zn at 1.13–1.65%, and Pb at 0.35–1.14%.
  • Exploratory work is underway to concentrate gallium from silicate gangue and indium from base metals/pyrite streams, with a consolidated update expected in H2 2026.
  • Next steps include mini-plant optimization, Phase 2 drilling, and the anticipated first NI 43-101 Mineral Resource Estimate.
Material Impact
  • The company has systematically advanced from FY2025 earnings and the sale of the non-core Santander mine (Apr 2025) to a $22.7M financing led by Eric Sprott (Nov 2025), followed by a DFC development funding agreement (Mar 2026) and an AMSAC surface-access agreement (Mar 2026).
  • The June 2026 metallurgical results validate the technical feasibility of the proposed flowsheet, confirming that silver and sulphides can be effectively recovered into a bulk concentrate.
  • This progress de-risks the technical path and aligns with the company's stated milestones, but it is an incremental follow-up to previous announcements rather than a market-moving event.
  • The stock has traded in a $0.50–$0.65 range since May 2026, indicating that the market views this as routine project development. Without a formal resource estimate or production guidance, the financial impact remains speculative.
  • The news is Routine - Positive. It confirms execution capability but does not alter the valuation model until resource definition and permitting milestones are met.
CDPR · Price
Company Overview
  • Cerro de Pasco Resources Inc. trades on the TSX Venture (CDPR) and OTCQX (GPPRF).
  • Flagship asset: Quiulacocha Tailings Reprocessing Project, located in the Pasco Region of Peru.
  • Secondary asset: Excelsior Stockpile at the El Metalurgista Concession, holding a 30.1 Mt Inferred Mineral Resource.
  • Project stage: Exploration/Feasibility. No established NI 43-101 resource exists for Quiulacocha.
  • Extraction method involves tailings reprocessing via excavation, wet pumping, and hauling, with estimated costs of $1–$2 per ton.
  • Target commodities include silver, zinc, lead, copper, gold, gallium, and indium.
Read the original news release →

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