Thirty companies released silver results from drilling programs in Mexico during the third quarter of 2026. Coeur Mining produced the highest silver intercept at its Palmarejo property in Chihuahua, with 11.48 m grading 1,250 gpt Ag, including 5.31 m of 2,154 gpt Ag. The results are from resource drilling on the Main Mine Trend and exploration on the Eastern District. “Recent results support the potential of the Eastern District to become a significant new mining front at Palmarejo, both in the medium-term near the Main Mine Trend (Independencia Sur), and longer-term at San Miguel and La Unión…” Mineralization at Palmarejo presents characteristics of low sulfidation epithermal systems.

Three quarters of the projects in this table correspond either to intermediate or low sulfidation epithermal mineralization systems. The more numerous are those of intermediate sulfidation affinity, including Cusi, El Tigre, Gavilanes, Columba, Alamos Silver, Cruz de Plata, Don David, San Marcial, San Acacio, Copalito, Gran Pilar (distal to a porphyry copper system), Las Coloradas, Zacatecas Silver and Tahuehueto. Low sulfidation epithermal systems in the list comprise, besides Palmarejo, Las Chispas, Copalquín, San Dimas, Claudia, Potrero, La Virginia and Cerro Caliche. 

The Morelos Complex, Cerro Las Minitas, La Parrilla, Cosalá and Cerro Las Minitas present skarn and/or carbonate replacement (CRD) mineralization styles, while La Parrill adds intermediate sulfidation epithermal mineralization to that mix and Adelita is a skarn distal to porphyry copper style intrusions. Campo Morado is the only volcanogenic massive sulfides (VMS) property in the table and Santo Tomás is the sole porphyry copper deposit.

Most of the drilling activity in the quarter was in the north and northwest of the country. By State, Durango has nine entries in the table, Sonora eight, Chihuahua and Sinaloa four each. Guerrero and Zacatecas two each and Oaxaca one.