Announcement • Jun 16
J2 Metals Inc. Identifies Three New Historic Mining Workings at its Sierra Plata Project, Zacualpan-Taxco District, Mexico J2 Metals Inc. has announced the identification of three historic mine workings, El Samano, El Chinicuil, and El Cedro Rojo as part of the initial field program at its Sierra Plata Project located in Guerrero State, Mexico. The discoveries were made by project geologists during the period of May 19 to 31, 2026 under the direction of Country Manager Carlos Cham. As of May 31, 2026, the geology team has located a total of six historic mining workings within the Sierra Plata project area, three of which are being highlighted in this release. El Samano Mine is located at UTM coordinates 421723E /2058377N and comprises approximately 5 metres of underground development hosted in black shale. A float sample recovered from outside the mine entrance revealed a vein fragment carrying white quartz, calcite, and amethyst quartz with visible polymetallic sulfides. El Chinicuil Mine is located at UTM coordinates 421193E /2058179N and is currently a collapsed mine. A hand sample collected at the site revealed a quartz-calcite vein with polymetallic sulfides consistent with the mineralization style observed elsewhere on the property. The Company intends to reassess the structure for safe re-entry in future field programs. El Cedro Rojo Mine is located at UTM coordinates 421562E /2056410N and is capped with overburden and unable to be entered. J2 plans to revisit and evaluate the feasibility of safely uncovering and sampling the workings at a subsequent time. In aggregate, 53 rock samples have been collected from the six identified mine workings and surrounding surface exposures. In addition, four quartz veins with iron oxide mineralization have been identified on surface. Laboratory results are pending and the Company will provide further commentary on the significance of the vein structures upon receipt. Geological mapping has now covered approximately 250 out of 2,200 hectares of the project area, identifying three distinct lithological units: limestone, sandstone, and black shale. Oxidation zones have also been mapped and are being correlated with the locations of historic workings and surface vein occurrences. The field team will continue systematic location and sampling of historic mining structures across the remainder of the project area, while advancing geological-structural mapping and alteration studies. Priority next steps include re-assessment of covered mine workings (including El Chinicuil and El Cedro Rojo) for safe access, dewatering of the second level at El Sabino mine, and receipt and interpretation of geochemical assay results from the 53 samples submitted to date. The Sierra Plata Project is a 2,203-hectare silver-gold-antimony exploration project situated within Zacualpan, one of the most important historically productive epithermal mining districts in Mexico and includes five past-producing high-grade mines localized along regionally extensive, structurally controlled vein corridors. Recent sampling of waste dumps at Sierra Plata returned grades of up to 3,932 g/t AgEq. Mineralization is hosted in quartz-dominant vein systems containing fine-grained sulphides with associated gold and antimony, reflecting a low to intermediate epithermal system with strong vertical metal zoning. Alteration assemblages, vein textures, and metal associations observed at surface are consistent with upper-level exposure of the epithermal system, with historic mining largely confined to near-surface levels. The Company anticipates identifying a large number of high-priority targets for drill evaluation. Announcement • May 06
J2 Metals Inc. Reports High-Grade Silver and Gold Results from Sierra Plata Project in Zacualpan Mexico J2 Metals Inc. reported high-grade silver and gold results from grab sampling at the Sierra Plata Project in Zacualpan, Mexico. During April, VP Exploration Graham Giles completed two site visits, the second accompanied by directors Simon Clarke and Steven Gold. Activities included the initiation of systematic geological mapping by contract geologists, planning of Phase 1 geochemical sampling, evaluation of magnetic geophysics providers, commencement of drill permitting, and collection of additional grab samples at the array of historical workings across the project. Initial work will also include a systematic inventory and mapping of all historical mines and workings across Sierra Plata. The project area sits within one of Mexico's most enduring mining districts (active through the Spanish colonial era and continuously thereafter) and additional workings beyond those already documented remain to be identified. A comprehensive census of these surface expressions will ensure no significant mineralized structures are overlooked. Grab samples from quartz vein material of the historic El Sabino and San Miguel mine waste dumps returned high-grade silver and gold values, further confirming the strong precious metal endowment of the Sierra Plata system. The Sierra Plata Project is a 2,200 hectare silver-gold-antimony exploration project situated within Zacualpan, one of the most important historically productive epithermal mining districts in Mexico, and includes five past-producing high-grade mines localized along regionally extensive, structurally controlled vein corridors. Mineralization is hosted in quartz-dominant vein systems containing fine-grained argentite with associated gold and antimony, reflecting a low to intermediate epithermal system with strong vertical metal zoning. Alteration assemblages, vein textures, and metal associations observed at surface are consistent with shallow-level exposure of the epithermal system, with historic mining largely confined to near-surface levels. The combination of limited depth penetration by historic workings, preserved structural permeability, and elevated silver-gold grades at surface suggests the system remains open at depth, where epithermal boiling zones and associated bonanza-grade precious-metal mineralization are commonly developed. The Company anticipates identifying a large number of high-priority targets for drill evaluation. Announcement • Apr 22
J2 Metals Inc. completed the Spin-Off of Twenty Mile Metals Inc. The Board of J2 Metals Inc. (TSXV:JTWO) announced the spin-off of 1558117 B.C. Ltd. on October 24, 2025. As per the transaction, J2 Metals Inc. proposes to spin out its Twenty Mile Project, located in British Columbia's prolific Quesnel Trough Porphyry Belt under 1558117 B.C. Ltd. As part of the transaction, 5 million shares of 1558117 B.C. Ltd. will be distributed to the shareholders of J2 Metals Inc. It is expected that 1558117 B.C. Ltd. will change its name to "Twenty Mile Metals Inc. The transaction is subject to approval by the shareholders of J2 Metals Inc., approval of the Supreme Court of British Columbia, acceptance of the Arrangement by the TSX Venture Exchange, conditional approval for the listing of the 1558117 B.C. Ltd. shares on the TSX-V and completion by 1558117 B.C. Ltd. of a private placement. The transaction is unanimously approved by board of directors of J2 Metals Inc. Thomas Lamb and Shauna L. Hartman of Armstrong Simpson acted as legal advisors to J2 Metals Inc. and 1558117 B.C. Ltd. As of December 3, 2025, the transaction is approved by shareholders of J2 Metals Inc. As of December 10, 2025, the transaction is approved by Supreme Court of British Columbia.
J2 Metals Inc. completed the Spin-Off of Twenty Mile Metals Inc. on April 20, 2026. 
