Goldgroup Highlights Its Two Producing Mines and Significant Growth Potential Across the Don David Gold Complex in Mexico

Goldgroup Mining Inc. (TSXV: GORO) (NYSE American: GORO) (FSE: 55G) ("Goldgroup" or the "Company") is pleased to provide an overview of its Oaxaca mining operations and regional land package, held by its Mexican subsidiary, Don David Gold Mexico S.A. de C.V. ("DDGM"), and collectively referred to as the "DDGM district." DDGM is an established gold and silver mining operation including the producing Arista and Alta Gracia underground mines, the El Aguila processing facility and an extensive regional exploration land package along the San José structural corridor. Don David is not a single-deposit operation. It includes two producing underground mines – Arista and Alta Gracia – together with multiple known mineralized vein systems and an extensive regional exploration land package. This combination provides Goldgroup with opportunities to support ongoing production, expand known mineralized systems and continue testing exploration targets both near existing operations and across the broader district.

DON DAVID AT A GLANCE

Two producing underground mines: Arista and Alta Gracia.

Established infrastructure including processing and filtration facilities, grid-connected power, water storage, paste plant, dry-stack tailings, and road access.

Nominal 1,800-tonne-per-day flotation plant and 300-tonne-per-day agitated-leach circuit at the El Aguila processing facility.

Ore from both Arista and Alta Gracia is currently treated through the flotation circuit to produce separate copper, lead and zinc concentrates containing payable gold and silver.

Multiple mineralized vein systems across the Arista and Alta Gracia mines, providing opportunities for resource definition and expansion.

Regional land package totaling 55,119 hectares and spanning approximately 55 kilometres along the San Jose structural corridor, with multiple, high-priority exploration targets.

A 34,250-meter 2026 drilling program is underway with results to date highlighting several high-grade gold- and silver-mineralized zones.

The following figure shows the location of the Arista and Alta Gracia mines and the key exploration targets, Margaritas and El Rey.

TWO PRODUCING MINES – MULTIPLE OPPORTUNITIES FOR GROWTH

Arista: A Multi-Vein Underground Mining Complex

The Arista Mine is the principal producing underground operation at DDGM and hosts several polymetallic intermediate-sulphidation epithermal vein systems, including Arista, Three Sisters-Gloria, and Switchback. Mineralization is structurally controlled and contains gold and silver together with copper, lead, and zinc. Mining and underground development are currently focused across several areas, including the Viridiana, Chuy, Splay 5 and Splay 31 veins within the Arista system, the Sandy veins within Three Sisters and the Soledad South and Sagrario veins within Switchback. The Arista and Switchback systems have each demonstrated strike extents of more than 1.5 kilometres and remain open along strike and both up- and down-dip providing opportunities for continued resource definition and expansion. The Three Sisters-Gloria system has also emerged as an important new source of mine feed and exploration drilling target and remains open for further definition and expansion in multiple directions. Commercial production at the Arista Mine began in 2010 with mining from the El Aguila open pit and subsequently transitioned to underground operation. Ore is transported approximately two kilometres to the El Aguila processing facility, where it is treated through the flotation circuit to produce separate copper, lead and zinc concentrates containing payable gold and silver. Recent work has increasingly focused on Three Sisters-Gloria system, a relatively new discovery that has emerged as an impo...