Pacifica Silver Unveils New High-Grade Aguilareña Mineralized Shoot at Claudia Project, Mexico

Record-Breaking Gold and Silver Grades from Northern Aguilareña Vein Extension

Pacifica Silver's recent assay results from 14 additional drill holes reveal what the company identifies as the highest combined gold and silver grades with the widest mineralized intervals ever encountered on the property. The standout intercept from Hole 26CLAU115D returned 4.44 metres of estimated true width grading 8.00 grams per tonne gold and 65 grams per tonne silver. Within this interval, a high-grade zone yielded 1.99 metres at 17.40 g/t gold and 117 g/t silver, including a narrow core section assaying 0.63 metres at 37.40 g/t gold and 56 g/t silver.

The newly discovered mineralized shoot lies north of the historic Aguilareña shaft within a mineralized footprint extending roughly 2 kilometres in strike length and 200 metres down-dip. This drilling campaign addressed a critical gap in previous coverage, delineating the high-grade shoot over approximately 325 metres of strike length. Estimated true widths of the main Aguilareña vein here reach up to 5 metres, with a broader mineralized hanging-wall and footwall stockwork and breccia zone measuring up to 14 metres true width.

Additional Key Intercepts and Vein System Expansion

Besides Hole 26CLAU115D, Pacifica Silver reported two other significant high-grade intersections in this phase. Hole 26CLAU112D intersected a thick vein and breccia package averaging 0.66 g/t gold and 170 g/t silver over 14.54 metres estimated true width. Notably, a high-grade silver zone near the hanging wall returned 866 g/t silver and 1.41 g/t gold over 2.54 metres true width within oxidized quartz breccia, including 0.41 metres grading 5.63 g/t gold and 5,100 g/t silver.

Hole 26CLAU118D encountered another wide vein structure with 2.00 g/t gold and 112 g/t silver over 3.97 metres true width, including 4.72 g/t gold and 271 g/t silver over 1.38 metres within quartz breccia. The vein textures and metal content suggest mineralization occurs relatively high in the epithermal system, indicating potential for deeper feeder zones in future drilling.

Exploration Upside Along Strike and at Depth

Drilling so far has tested only about half of the mapped Aguilareña vein strike length, leaving substantial exploration potential along strike. Mineralization remains open at depth in two distinct zones. The company has identified several narrower, often strongly mineralized structures in hanging wall and footwall zones, possibly representing bifurcations, parallel veins, or new veins capable of intersecting the main Aguilareña vein.

Pacifica Silver plans an oriented-core drilling program in H2 2026 to refine structural interpretations and better target potential new intersections. Several promising surface-mapped structures outside the main vein remain untested, with ongoing detailed surface mapping and sampling to prioritize targets. A recent structural geology study has enhanced drill targeting and understanding of mineralization controls.

Phase II Drilling Progress and Expansion

As of July 27, 2026, Pacifica Silver's fully funded Phase II drilling program, launched mid-January 2026, has completed 16,278 metres across 71 holes and remains on track for Q3 2026 completion. The company increased from two to three active drill rigs following the return of the rainy season and water availability, accelerating exploration.

Drilling at the newly identified Judy anomaly—announced July 6, 2026—continues with three holes completed, the deepest reaching 402 metres vertical depth. All holes intersected silica- and sulfide-cemented breccias containing visible fine-grained pyrite, galena, sphalerite, and chalcopyrite. This alteration and mineralization style suggests a deeper system position relative to prior drilling north and west, with follow-up drilling ongoing.

Management Insights on Strategic Importance

Todd Anthony, President and CEO of Pacifica Silver, stated that "these results are extremely encouraging and mark an important step forward at the Claudia Project," highlighting the delineation of a new high-grade mineralized shoot in the northern Aguilareña vein portion containing the highest gold and silver grades ever drilled on the property over significantly wider intervals.

Anthony emphasized that the findings "clearly demonstrate both the high-grade nature and district-scale potential of the Aguilareña vein system." He added that "with mineralization open along strike and at depth, and multiple drills operating, we have a clear opportunity to rapidly build a meaningful inventory of high-grade ounces at relatively shallow depths." No production estimates or timelines for resource or reserve definitions were provided.

Assay Procedures and Quality Assurance Protocols

Samples were collected from HQ-diameter core, logged, and sampled at Pacifica Silver's secure facility in Santiago Papasquiaro, Durango. Sample intervals ranged from 0.30 to 1.8 metres, averaging 0.78 metres. Geologists split cores lengthwise perpendicular to veins and mineralized structures.

Half-core samples were bagged with sample tickets and placed in numbered sacks alongside preparation blanks and certified reference materials. Samples were shipped to ALS laboratory in Hermosillo, Sonora, Mexico, crushed to 70% passing 2 mm, riffle-split to 1 kg, and pulverized to 85% passing 75 micrometres. Gold was analyzed by 30-gram fire-assay fusion with atomic absorption finish; samples over 10 g/t gold were re-assayed with gravimetric finish. Silver and 34 other elements were analyzed by ICP-AES following 4-acid digestion; samples over 100 g/t silver were re-analyzed. ALS is ISO/IEC 17025:2017 accredited and independent of Pacifica Silver.

Silver Equivalent Grade Calculation Method

Silver equivalent grades (AgEq) were calculated using: AgEq (g/t) = Ag (g/t) + [Au (g/t) × (Au price / Ag price) × (Au recovery / Ag recovery)]. Metal prices assumed were US$30/oz for silver and US$2,500/oz for gold. Due to limited metallurgical test work at Claudia, recovery assumptions of 93% for silver and 96% for gold were applied, based on five-year averages from First Majestic Silver Corp.'s San Dimas mine, considered reasonable proxies given deposit style and proximity.

Estimated true widths of intervals ranged from 57% to 91%, averaging 83%. These details qualify the presented results.

Project Background and Exploration History

The Claudia Silver-Gold Project covers 11,876 hectares in Durango State, Mexico, encompassing most of the historic El Papantón Mining District. At least nine small mines operated intermittently in the district during the 20th century. Since 1990, sampling and drilling have yielded high-grade silver and gold intercepts across multiple vein systems. Only 10% of over 30 kilometres of known veins have been drilled, indicating significant exploration potential.

Pacifica Silver is a Canadian resource company led by management with decades of Mexican mining and exploration experience. The company holds 100% ownership of Claudia, described as "a prime target for modern exploration" with exceptional potential for new high-grade discoveries, subject to forward-looking statement risks.

Qualified Person and Technical Validation

Stephen Redak, CPG, Vice-President of Exploration for Pacifica Silver, is the Qualified Person under National Instrument 43-101 who reviewed and approved the technical content of this release, ensuring compliance with Canadian securities regulations for mineral exploration disclosure.