Goldgroup Files Updated Technical Report on Cerro Prieto Project

VANCOUVER, BRITISH COLUMBIA / ACCESS Newswire / November 6, 2025 / Goldgroup Mining Inc. ("Goldgroup" or the "Company") (TSXV:GGA)(OTCQX:GGAZF) is pleased to announce that it has filed an updated NI 43-101 technical report on the Cerro Prieto gold project located in Sonora State, Mexico. The report is entitled "Cerro Prieto Project, Heap Leach Project, Magdalena de Kino, State of Sonora, Mexico" with an effective date of April 4, 2025 (referred to herein as the "Report"). The Report, prepared by Rodrigo R Carneiro MSc, QP, SME Registered Member, José Antonio Olmedo MSc, P. Eng. Geo, QP, SME Registered Member and Cristian Garcia, P. Eng., QP, Registered at Engineers and Geoscientists of British Columbia and independent of the Company. The Report is available for viewing on Sedar+.

The Report provides independent assessment of the Mineral Resources Estimates of the Esperanzas Deposit within the Cerro Prieto Mine, which includes the La Esperanza and Nueva Esperanza contiguous zones. The Company owns 100% of the 6,980 hectares of mining concessions and has been in production since 2013. Approximately 136,000 ounces of gold have been produced over 11 years up to Sept 30, 2025. Annual production over the past two years from Sept 30^th, 2025, via open pit mining with crushing capacity of 2,400 tpd at Cerro Prieto Mine was 8,174 ounces of gold.

The Company recently installed a second crushing circuit which has doubled crushing capacity to over 4,200 tonnes per day which will help to facilitate our objective of significantly increasing gold production.

The Report highlights the potential of the Esperanzas Deposit area and other nearby targets. Goldgroup has commenced exploration of these areas and has, as well, begun preparations for tailings reprocessing, an important optimization initiative to further increase gold production at the mine.

The following table presents the resource NI 43-101 assessment of Measured and Indicated resources at the Esperanzas Deposit at a cut-off grade of 0.20 g/t gold. The Inferred resource estimate at the Esperanzas Deposit is below.

Measured and Indicated as of April 04, 2025
Cut-Off Grade Au (g/t)	Class			Volume (m3)