Pacifica Silver Identifies New Extensions to Mineralized Veins at Claudia Silver-Gold Project; Provides Phase I Drill Program Update

Executive Summary

• Pacifica Silver identified several new high‑priority drill targets at the Claudia Silver‑Gold Project after assaying up to 23.6 g/t Au and 480 g/t Ag from 325 surface rock‑chip samples collected in 2022.
• Phase I diamond drilling, which began on 22 Sept 2025, has already completed 647 m across three holes (out of an 8,000‑m program) with two rigs operating and a third rig slated for addition in Nov 2025.
• The company expects to obtain permits for the newly defined Veta Justina and Mina Vieja targets and commence drilling them in Q1 2026.

Key Details

• Surface Sampling Highlights
• Highest assay: 22.7 g/t Au & 480 g/t Ag (southernmost sample) and 23.6 g/t Au & 77 g/t Ag.
• Other notable assays include 11.2 g/t Au & 17 g/t Ag; 7.15 g/t Au & 143 g/t Ag; 3.33 g/t Au & 311 g/t Ag, etc.
• Total of 322 rock‑chip and 3 mine‑dump samples collected in 2022; ~85 % from vein outcrops near Veta Justina and southern Guadalupana‑Mina Vieja area.
• Statistical Summary (all 325 samples)
• Average grade: 0.43 g/t Au and 20 g/t Ag.
• Top 13 samples (4 %) ≥ 100 g/t Ag, avg 257 g/t Ag & 3.59 g/t Au.
• Top 5 samples (1.5 %) ≥ 3 g/t Au, max 23.6 g/t Au and avg 13.60 g/t Au.
• New High‑Priority Targets
• Veta Justina (formerly VCE vein) – ~700 m of vein now identified for drilling.
• Mina Vieja area – extension of mineralization suggested up to an additional 300 m south toward the Mina de Oro vein system.
• Phase I Drilling Update
• Program: 8,000‑m diamond drill plan started 22 Sept 2025.
• Completed to date (as of 8 Oct): 647 m across first three holes.
• Rig deployment: 1 rig initially; second added 6 Oct; both averaging 40–50 m/day per rig.
• Third rig planned for November 2025 to test the permitted northern zone of Veta Justina.
• Core samples sent to ALS (Zacatecas) for assay.
• Permitting
• Permit applications being prepared with SEMARNAT for drilling Veta Justina and Mina Vieja in Q1 2026.
• Qualified Person
• Patrick Loury, AIPG CPG – Exploration Technical Advisor – reviewed and approved technical content (NI 43‑101).

Notable Quotes

“These results have demonstrated that silver and gold mineralization is present at surface between the historical Tres Reyes and Mina Vieja artisanal workings for at least 1.5 km… We expect to have permits in hand to drill these new high‑priority targets in Q1 2026.” – Todd Anthony, CEO, Pacifica Silver Corp.