J2 Metals Inc.: Field Team Mobilized at Sierra Plata Silver-Gold-Antimony Project in Zacualpan to Map Historical Mines, Workings, Veins. 3D-IP Survey Completed at Miniac Project in the Abitibi

Executive Summary

• J2 Metals has mobilized its technical team at the Sierra Plata project in Mexico to commence a comprehensive property-wide geological mapping program and has initiated the drill permitting process for a future maiden drill program.
• The company completed a 41 line-kilometre OreVision™ IP geophysical survey at its Miniac Project in Quebec, with results being integrated to refine high-priority drill targets for a planned Phase II drill program extending up to 5,000 metres.
• Management highlighted strong macroeconomic tailwinds for silver, copper, and antimony, positioning both core projects at critical exploration junctures ahead of upcoming fieldwork and survey results.

Key Details

• Sierra Plata Project (Mexico): Mobilized Mexico Country Manager Carlos Cham and team to begin detailed property mapping; established operational headquarters in Tetipac to support exploration and future drilling.
• Team Expansion: Added two full-time project geologists from Findore SA de CV to support the ongoing exploration campaign.
• Ongoing Fieldwork: Activities include detailed GIS compilation, systematic geological and structural mapping, documentation and 3D mapping of historical workings, and vein projection analysis extending from adjacent ground controlled by Grupo Mexico and Impact Silver Corp.
• Drill Permitting: Initiated the drill permitting process in preparation for a future maiden drill program targeting priority vein systems identified through ongoing fieldwork.
• Sierra Plata Sampling: Recent sampling of waste dumps at five past-producing high-grade mines returned grades up to 3,932 g/t AgEq.
• Miniac Project IP Survey: Completed 41 line-kilometre OreVision™ IP survey to 580m depth; results are being integrated into the evolving GIS database to refine high-priority drill targets.
• Miniac Survey Findings: Identified several prospective chargeability and resistivity anomalies coincident with previously identified EM anomalies by ALS Goldspot, enhancing understanding of the mineralized system.
• Miniac Phase II Drilling: Planned Phase II drill program up to 5,000 metres is being led by Geosquad Consultants and proceeding on schedule; recent high-resolution geophysical surveys identified 19 high-priority targets along a largely untested 7-kilometre conductive horizon.
• Historic Miniac Intercepts: Phase I and historic drilling intersected prospective zones including: 4.8 g/t Au and 6.9% Zn over 0.3m (DV-80); 1.05 g/t Au and 0.16% Zn over 4.65m (20MDD004); 0.29 g/t Au, 6.01 g/t Ag, and 0.261% Cu over 3.5m (Min-83-4).
• Napoleon Project (Alaska): Rock-chip samples returned up to 596 g/t Au; historical drilling by Teck and Kennecott reported 8.9 g/t Au over 3m and 0.9 g/t Au over 79m.
• Commodity Macro Context: CEO highlighted structural industrial demand for silver, a copper price surge driven by global electrification and supply constraints, and rapidly increasing demand for antimony due to its irreplaceable role in defense technologies, flame retardants, and energy storage.

Notable Quotes

• CEO Thomas Lamb: "We are at an inflection point for J2. Our field team is now on the ground at our Sierra Plata gold-silver-antimony project in Mexico, and I expect the coming months to be transformative. The project area contains many historical mines and workings dating back 500 years, but it has never been evaluated using modern methods."
• CEO Thomas Lamb: "At Miniac in the Abitibi, the OreVision™ IP survey is now complete, and we are eagerly awaiting the results. Miniac is a polymetallic VMS system with a significant copper endowment, and we have a particularly keen interest in that context given where the copper price is today."
• CEO Thomas Lamb: "Both Sierra Plata and Miniac are at genuinely exciting junctures, and we look forward to updating shareholders as results emerge over the coming months."