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

Vancouver, British Columbia--(Newsfile Corp. - October 9, 2025) - Pacifica Silver Corp. (CSE: PSIL) (OTCQB: PAGFF) ("Pacifica" or the "Company") has identified several new high-priority drill targets at its 100% owned Claudia Silver-Gold Project located in Durango State, Mexico, based on assay results of up to 23.6 g/t Au and 480 g/t Ag from 325 surface rock chip samples collected in 2022 and recently assayed as part of its property-wide exploration program. The Company's Phase I drill program has been underway since September 22, and management plans to apply for permits to drill the new targets as part of the program.

"Recent assay results from rock chip samples collected in 2022, which include some of the highest-grade sampling results ever encountered, have confirmed that high-grade gold and silver mineralization is far more extensive than previously recognized at the Claudia Project," stated Todd Anthony, Chief Executive Officer of Pacifica Silver. "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 kilometres in the southeastern portion of the project. This includes 700 metres of the VCE vein area - newly renamed Veta Justina - which was previously unsampled and undrilled. The areas around Veta Justina and Mina Vieja are now considered new high-priority targets for drilling."

"In addition, the highest single sample assay result of 22.7 g/t Au and 480 g/t Ag was collected from the southernmost area sampled, which suggests that mineralization may extend further south for another 300 metres towards the Mina de Oro vein system. These results highlight the significant scale and potential of the precious metals systems at the project, which we are keen to prove up through drilling. We expect to have permits in hand to drill these new high-priority targets in Q1 2026," concluded Mr. Anthony.

Surface Rock Chip Sample Highlights (see Figure 1 for locations):

• 22.7 g/t Au & 480 g/t Ag
• 23.6 g/t Au & 77 g/t Ag
• 11.2 g/t Au & 17 g/t Ag
• 7.15 g/t Au & 143 g/t Ag
• 2.74 g/t Au & 404 g/t Ag
• 3.33 g/t Au & 311 g/t Ag
• 2.03 g/t Au & 312 g/t Ag
• 0.39 g/t Au & 408 g/t Ag
• 1.83 g/t Au & 230 g/t Ag
• 2.19 g/t Au & 190 g/t Ag

A total of 322 surface rock-chip and three mine dump samples were collected in 2022 by the prior owner but remained unassayed until Pacifica launched its property-wide exploration program in September. Approximately 85% of the samples were collected from vein outcrops south and east of the artisanal Tres Reyes workings, focused on the Veta Justina (Justina vein) and the southern Guadalupana-Mina Vieja vein horse-tail area (see Figure 1). The remaining 15% were taken during early-stage reconnaissance traverses from outcropping veins located up to 3 km north and 2 km east of the Aguilareña-central Guadalupana area.