The Guadalupe Production Centre is located in the Royal Mines of Zacualpan Silver District, Mexico.

Zacualpan is one of the oldest mining districts in North America with Spanish Colonial mining dating back to at least 1527. In 1531, it was the first mining district in the Americas to be given the title of 'Royal Mines' of Zacualpan by proclamation under the Spanish Crown.

Silver mineralization at Zacualpan is of the class known as silver-rich intermediate sulphidation epithermal vein deposits. Many of the largest and best known silver mines in Mexico belong to this class including mines San Ramon Mine, Mirasol Mine, Cuchara-Oscar Mine and others.

These deposits occur as veins and less commonly as breccia bodies and disseminations or stockworks. Mineralization usually consists of pyrite with variable sphalerite, galena and various silver and gold minerals in a dominantly quartz and carbonate matrix. Vertical extent of economic mineralization averages about 300m but is known to vary from 100m to 960m.

Most economic mineralization in the Zacualpan Mining District is associated with northwest and north-south trending vein structures. These vein structures can often be traced for many kilometers across the district but economic mineralization occurs as mineralized shoots in structurally favourable sections along the trace of the vein structures. The main ore shoots mined over the last 30 years have dimensions of 2-6m in width, 30-150m i ........

Royal Mines of Zacualpan District.
At the Royal Mines of Zacualpan Silver-Gold District several underground / open pit mines on epithermal silver (-zinc-lead) veins feed the central Guadalupe processing plant rated at 535
tonnes per day. Since acquiring the project, there has been extensive work done to upgrade operations and enhance production. Expanding the tailings capacity is an ongoing process. Work has been completed on a third tailings dam which will begin to receive tailings in 2022.

Guadalupe Silver Mine.
The Guadalupe Mine is located adjacent to the Guadalupe mill. This underground mine restarted commercial production in September 2018 after a hiatus of five years and is now the largest producing mine on the property. Production comes from multiple veins on multiple levels in the largest vein cluster known on the property.

The operation team activity has become more focused on the Guadalupe mine and other areas accessed from that shaft, with tonnage reaching approximately 50% of the mill feed. A substantial underground development program at Guadalupe is continuing which includes a two-stage refurbishment of the mineshaft at the Guadalupe mine, and rebuilding the extensive track system on the 195 level to access the Pachuqueno section of the mine. This will provide for considerably higher capacity with lower associated hauling costs.

San Ramon Silver Mine.
The San Ramon Mine is located 5 kilometres south of th ........

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