Vanguard Mining orders Brussels NI 43-101 report

Mr. David Greenway reports VANGUARD MINING ENGAGES HARDLINE EXPLORATION FOR NI 43-101 TECHNICAL REPORT UPDATE AT BRUSSELS CREEK GOLD-COPPER-PALLADIUM PROJECT, KAMLOOPS, BC Vanguard Mining Corp. has retained Hardline Exploration Ltd., a respected independent geological consulting firm, to complete an National Instrument 43-101 technical report for its 100-per-cent-owned Brussels Creek gold-copper-palladium project, located in the highly prospective Kamloops mining district of British Columbia. As previously announced in the company's Nov. 26, 2025, news release, the company recently completed a comprehensive surface sampling program at the Brussels Creek project. Subject to the receipt of pending assay results from this program, the NI 43-101 technical report is expected to be completed before the end of January, 2026, representing a near-term technical milestone as the company advances Brussels Creek toward its next phase of exploration. David Greenway, president and chief executive officer of Vanguard Mining, commented: "The near-surface gold intercept reported in 2023 delivered a compelling proof-of-concept for the Brussels Creek project. Our recent rock and soil sampling program rock and soil sampling program is focused on refining geological vectors and identifying additional high-priority drill targets within this gold-copper-palladium system. The results will directly support the advancement of an updated NI 43-101 technical report, representing an important step in derisking and systematically advancing this highly prospective project. We look forward to receiving the assay results as we continue to unlock the exploration potential at Brussels Creek." Sampling program completed The 2025 program, previously announced on June 10, 2025, was designed to follow up on a near-surface drill intercept of 5.08 grams per tonne gold from 25.75 metres to 29.25 metres (3.5 metres) reported in 2023 and focused on systematic surface sampling to refine priority targets for follow-up drilling. The work comprised 21 rock samples, collected from surface mineralized zones, structural features and altered host rocks, and 127 soil samples, collected in systematic grids, to define geochemical anomalies and extensions to known mineralized trends. The sampling program was undertaken by Hardline personnel under the direction of Jeremy Hanson, PGeo. All samples were submitted to SGS Canada Inc. in Burnaby, B.C., for preparation and analysis. Rock samples are being analyzed using a four-acid ICP package and fire assay for gold, platinum and palladium while soil samples are being analyzed using aqua regia digestion with fire assay for gold, platinum and palladium where warranted. Fire assay with AA and gravimetric finishes remains the industry standard for gold and PGM determination, and SGS meets all analytical best-practice requirements. Analytical results will be reported once received, compiled and reviewed by the company and Hardline's qualified person, J.T. Shearer, MSc, DIC, PGeo. Upon receipt and interpretation of the assay results, Vanguard will prioritize targets for a potential 2026 drilling program and incorporate results into the forthcoming NI 43-101 technical report. About Hardline Exploration Corp. Hardline Exploration is a geological consulting and project management company based in Smithers, B.C. The company specializes in early- to advanced-stage mineral exploration, offering comprehensive services including geological mapping, geochemical and geophysical program design, data interpretation, and project management. Hardline has a strong record of executing cost-effective, technically robust field programs across Western Canada. Quality assurance/quality control and data verification All samples from Vanguard's 2025 Brussels Creek sampling program were collected, handled and processed under industry-standard protocols. Samples were maintained under secure chain of custody from collection through storage, transport and laboratory submission. Analytical work is being carried out by SGS, an independent laboratory that meets the requirements of ISO/IEC 17025:2017 and ISO 9001:2015. SGS retains coarse rejects and pulps for future verification and reanalysis, as required. Vanguard implements a comprehensive internal QA/QC program. The program includes the routine insertion of blanks, certified reference materials (standards) and duplicate samples into the sample stream at regular intervals to monitor analytical accuracy and precision. Laboratory internal QA/QC procedures are also reviewed to ensure continued compliance with best practices. The company's qualified person has reviewed the documentation of the QA/QC program and reports no issues that would indicate problems with the sampling, analytical procedures or data integrity. All data have been verified to a level appropriate for an early-stage exploration program. Historical information referenced in this release has been reviewed against available assessment reports; however, such data cannot be independently verified to current NI 43-101 standards and are therefore considered supportive for exploration guidance only. Regional context and indigenous collaboration On Nov. 3, 2025, Coeur Mining Inc. announced a definitive agreement to acquire New Gold Inc. in a $7-billion (U.S.) all-stock transaction, creating a combined $20-billion (U.S.) mining company. This development further elevates the strategic importance of the region and highlights the consolidation of major copper-gold assets in British Columbia. Brussels Creek is strategically located adjacent to New Gold's New Afton mine, a long-running copper-gold operation situated within the prolific Quesnel terrane. This proximity to an established, high-value mining complex enhances Vanguard's exploration potential and underscores the strategic significance of its land position within British Columbia's Quesnel terrane, a regional geologic belt renowned for hosting large alkalic porphyry copper-gold systems. Vanguard acknowledges that the Brussels Creek project lies within the Stk'emlupsemc te Secwepemc territory, on the unceded traditional lands of the Secwepemc Nation. The company is committed to working in close collaboration with Tk'emlups te Secwepemc (TteS) throughout the execution of current and future exploration programs. This collaboration includes a focus on local employment and training opportunities, procurement from indigenous-owned businesses, environmental stewardship aligned with community priorities, and transparent, continuing engagement as activities progress. Vanguard also continues first nations consultation and an archeological impact assessment (AIA), required prior to accessing additional priority sites identified in the NI 43-101 technical report prepared for Vanguard (formerly Le Mare Gold Corp.) dated Feb. 19, 2021, and revised April 12, 2021, by Chris M. Healey, PGeo, principal geologist of Healex Consulting Ltd. (EGBC No. 36477). About Brussels Creek (Kamloops, B.C.) The Brussels Creek property lies approximately 24 kilometres west of Kamloops and adjacent to New Gold's New Afton mine. The project covers 1,350.43 hectares (17 claims; 66 cells) and is hosted by a geological setting analogous to New Afton as well as Highland Valley, Mount Polley, Kemess and Galore Creek -- all silica-saturated, copper-gold alkalic porphyry deposits and all within the Quesnel terrane. Fieldwork has identified a mineralized quartz-feldspar porphyry body intruding Nicola group volcanics. Historical sampling (1983 to 1984) delineated a 200-metre-by-400-metre anomalous zone with gold values up to 3.5 grams per tonne. Grab samples taken from the property in 2019 include values of 10.1 g/t Au (with 0.7 g/t Pd) and 11.5 g/t Au, confirming high-grade surface mineralization. Disclosure regarding New Afton Information on New Gold's New Afton mine is sourced from New Gold's publicly filed 2024 annual results and provided solely to illustrate Brussels Creek's proximity to an operating mine. The qualified person confirms this does not constitute restricted disclosure under NI 43-101, Section 2.3(1)(a), as it refers to production from a third party operation, not the company's property. Vanguard's management cautions that past results or discoveries on properties in proximity to Vanguard may not necessarily be indicative of the presence of mineralization on the company's properties. About Vanguard Mining Corp. Vanguard Mining is a Canadian mineral exploration company focused on the discovery and development of high-value strategic minerals. The company is currently advancing exploration projects in Argentina, Canada and Paraguay, with a focus on identifying and developing assets critical to the global energy transition. Vanguard is committed to responsible exploration and value creation through the acquisition and advancement of highly prospective uranium and precious metal properties. Qualified person The scientific and technical information contained in this news release has been reviewed and approved by Lawrence Segerstrom, PGeo, MSC, MBA, a consulting geologist who is a qualified person as such term is defined under NI 43-101, Standards of Disclosure for Mineral Projects. Mr. Segerstrom is not at arm's length to Vanguard and is therefore not independent for the purposes of NI 43-101. The disclosure regarding production results from New Gold's New Afton mine is based on information contained in New Gold's publicly filed 2024 annual results. This information is provided strictly for contextual purposes to highlight the proximity of the company's Brussels Creek project to an established mining operation. The qualified person confirms that this disclosure does not constitute restricted disclosure under Section 2.3(1)(a) of NI 43-101 as it refers to actual reported production from a third party mine and not to the company's property or mineralization. The references to historical sampling results (1983 to 1984) and grab samples collected in 2019 are exploration results, not historical estimates as defined in Section 2.4 of NI 43-101. Accordingly, the historical estimate disclosure requirements of NI 43-101 do not apply. The company cautions that grab samples are selective by nature and may not be representative of overall mineralization on the property. Vanguard cautions that past results or production from properties in proximity to Vanguard may not necessarily be indicative of mineralization on the company's properties. We seek Safe Harbor.