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Technical Study

Goldgroup files NI 43-101 report for Cerro Prieto

By The Northwire Desk — AI Analysis Nov 07, 2025 · 04:09 GGA · 1.26 Goldgroup Mining Inc.
GGA · Price

Executive Summary

  • Goldgroup Mining Inc. filed an updated National Instrument 43-101 technical report for its Cerro Prieto gold project in Sonora, Mexico, with an effective date of April 4, 2025.
  • The report provides an independent assessment of mineral resources for the Esperanzas deposit (including La Esperanza and Nueva Esperanza zones) and highlights significant operational upgrades, including a doubled crushing capacity.
  • The company has produced approximately 136,000 ounces of gold since 2013 and is currently pursuing optimization initiatives, including tailings reprocessing and exploration of new targets, to significantly increase production.

Key Details

  • Report Details: The updated NI 43-101 report is titled "Cerro Prieto Project, Heap Leach Project, Magdalena de Kino, State of Sonora, Mexico" and is available on SEDAR+.
  • Qualified Persons: The report was prepared by Rodrigo R. Carneiro, MSc (SME registered member), Jose Antonio Olmedo, MSc, PEng, Geo (SME registered member), and Cristian Garcia, PEng (Registered at Engineers and Geoscientists of British Columbia).
  • Asset Ownership: Goldgroup owns 100% of the 6,980 hectares of mining concessions at Cerro Prieto.
  • Production History: Approximately 136,000 ounces of gold have been produced over 11 years up to September 30, 2025.
  • Recent Production Metrics: Annual production from September 30, 2025, through open-pit mining with a crushing capacity of 2,400 tonnes per day was 8,174 ounces of gold.
  • Operational Upgrade: A second crushing circuit has been installed, doubling the crushing capacity to over 4,200 tonnes per day to facilitate increased gold production.
  • Strategic Initiatives: The company has commenced exploration of the Esperanzas deposit area and other nearby targets, and has begun preparations for tailings reprocessing to optimize production.
  • Resource Assessment: The report includes a NI 43-101 assessment of measured and indicated resources at the Esperanzas deposit at a cut-off grade of 0.20 grams per tonne gold, along with inferred resource estimates.

Notable Quotes

  • No direct quotes from management were included in the provided text.
Read the original news release →

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