Drilling Progress, Key Acquisitions, Gold Surge: Weekly Roundup
By Adriana Alarcón | Journalist & Industry Analyst -
Fri, 09/26/2025 - 10:50
This week in mining, Questcorp advances its maiden drilling at La Union in Sonora with encouraging early signs, while Fortuna Mining moves ahead with its program at Centauro and La Carmen. Colibri outlines new drilling plans in Sonora and key catalysts at Pilar, and Southern Silver expands Cerro Las Minitas with the acquisition of Puro Corazon.
Your weekly mining insights are here!
Questcorp Advances Maiden Drilling at La Union Project in Sonora
Questcorp Mining is advancing its maiden drill program at the La Union gold-silver project in Sonora, with drilling completed at Union, El Cobre, and North Union targets, now moving to Famosa. Early results show favorable quartzite intersections, supporting potential fracture-controlled mineralization, with assays pending.
Newmont Divests Stake in Orla Mining Shares
Newmont has sold its entire 13.3% stake in Orla Mining, totaling 43 million shares for US$439 million via the TSX, as part of its strategy to streamline its equity portfolio and redirect capital toward priority projects.
Guanajuato Silver Expands Fleet for El Cubo and Valenciana
Guanajuato Silver has strengthened its fleet at the El Cubo and Valenciana mines with six new Tuoxing vehicles, including trucks and scooptrams, and ordered three custom 20t haulage trucks to improve efficiency and raise production output starting October 2025.
Fortuna Mining’s Exploration Program Advances Mexican Projects
Fortuna Mining is pushing forward its US$19 million exploration program in Mexico, with drilling set for October at the Centauro gold-silver project in Chihuahua and early-stage mapping and access agreements underway at La Carmen in Queretaro.
Colibri Outlines Exploration Plans for Sonora Gold Projects
Colibri Resource advances its EP Gold project in Sonora with new drilling plans and highlights near-term catalysts at its 49%-owned Pilar project, including a 50,000t pilot mine, maiden resource estimate, and PEA.
Southern Silver to Expand Cerro Las Minitas With Mine Acquisition
Southern Silver Exploration is acquiring the Puro Corazon claim in Durango to integrate with its Cerro Las Minitas project, boosting synergies and accelerating development with a 12,000m infill drill program ahead of an updated PEA in 1Q26.
Gold Prices Reach US$3,758.4/oz; Fed Rate Cuts Drive Demand
Gold rose 1.4% to US$3,758/oz and silver hit a 14-year high at US$43.67/oz on Fed rate cut expectations, extending a rally fueled by central bank buying.








