Pinnacle Silver and Gold Corp. is preparing an underground drill program at its El Potrero project in Durango, Mexico, targeting high-grade gold-silver in the Dos de Mayo vein. Plans include 112 holes (~2,600m) over 6 weeks, testing 500m strike. High grades: up to 85.1 g/t Au, 520 g/t Ag underground; 37.4 g/t Au, 2,280 g/t Ag surface. Development starts early 2026.
Kingsmen Resources Ltd. (TSXV: KNG) reported high-grade gold assays from 527 samples at the Juliettas prospect on the South Block of its 100%-owned Almoloya gold-silver project in Chihuahua, Mexico, including 28 samples >6.16 g/t Au (up to 34.09 g/t over 0.5m) over ~500m strike. Sampling continues to explore the vein/stockwork system.
Pacifica Silver reported strong Phase I drill results at its 100 %-owned Claudia Silver-Gold Project in Durango, Mexico, including 6.35 m of 2.94 g/t gold and 313 g/t silver—with 0.85 m grading 9.27 g/t gold and 1,905 g/t silver—confirming the northern extension of the high-grade Aguilareña vein system and encouraging further exploration.
EV Resources (ASX: EVR) has finalised a fully funded 1,500-2,000m maiden diamond drill program at its high-grade Los Lirios antimony project in Mexico, set to start early January 2026 pending permits. The Phase 1 drilling targets ~900m of the 4km Lirios Fault Zone to define extensions beneath historical workings, aiming for a maiden JORC resource in Q3 2026.
Heliostar Metals (TSXV: HSTR) released a PFS for its 100% owned Cerro del Gallo project in Mexico: 15.3-year mine life, 85.7k GEOs/yr at AISC US$1,390/oz. Initial capex $195M, post-tax NPV5% $424M and 33% IRR at $2,300/oz Au; $972M NPV and 59% IRR at $3,900/oz Au. Low strip ratio and heap-leach + SART design drive strong economics and upside.
EV Resources (ASX: EVR) completed due diligence on its 150tpd Tecomatlán antimony plant in Mexico. No issues found; crushing and power systems successfully tested. Plant to produce antimony concentrate from artisanal ore and pilot Los Lirios project. Environmental permit submitted, maiden drilling set for mid-January 2026. Fast-track to near-term antimony production.
IMPACT Silver Corp. (TSXV: IPT) reported high-grade zinc-lead-silver intercepts from underground drilling at the Santo Domingo Zone, Plomosas Mine, Mexico, including 0.85m @ 26.3% Zn, 6.45% Pb, 34.7 g/t Ag and 4.95m @ 13.83% Zn, 7.43% Pb, 22.99 g/t Ag. Mineralization remains open; drilling continues.
Silverco Mining Ltd. (TSXV: SICO) released an updated MRE for its 100%-owned Cusi silver project in Mexico: M&I 4.89 Mt at 262 g/t AgEq (41.2 Moz contained), Inferred 4.07 Mt at 243 g/t AgEq (31.8 Moz). San Miguel zone drives growth with 10.8 Moz Indicated + 16.2 Moz Inferred; resource uses tighter, more conservative parameters.
Regency Silver Corp. (TSXV: RSMX) reported that hole REG-25-25 intersected 23.7m of sulphide-specularite breccia ~35m up-dip/SE of prior high-grade hits (e.g., 38m @ 7.36 g/t Au in REG-23-21). A new Quartz-Feldspar Porphyry body was identified, potentially controlling mineralization. Four holes (2,476m) completed; assays pending.
Colibri Resource Corp. (TSXV: CBI) has commenced reverse circulation drilling at its 4,766-ha EP Gold Project in Mexico’s prolific Caborca Gold Belt, adjacent to Fresnillo plc holdings. CEO Ian McGavney called the start of drilling a key catalyst for exploration momentum in this established mining district.
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