Temas Resources confirms extensive mineralization at La Blache

Historic Hervieux West Re-Assay Program Validates High Grade Ti-V Mineralisation, Confirms Gallium, Scandium and Chromium Potential, and Advances Future Resource Growth Highlights Initial results from Temas' systematic re-assay program at the Hervieux West deposit confirm extensive high-grade titanium-vanadium mineralisation and validate the continuity of the mineralised system across the expanded La Blache Project. Material grades of six critical and strategic metals at La Blache will inform the next phase of extractive‑metallurgy development using Temas' proprietary Regenerative Chloride Leach (RCL) Platform Technology. Re-assays using Temas' preferred fused-bead analytical methodology provide enhanced analytical consistency while confirming valuable concentrations of titanium, vanadium, iron, gallium, scandium and chromium within the mineralised zones.

Results highlight the large scale and thickness of the Hervieux West mineralized body, underpinning confidence in future geological modelling and resource development. The successful recovery of more than 36 kilometres of historic drill core is expected to accelerate future technical studies and substantially reduce the time and cost required to advance the expanded La Blache Project. The current program represents the first phase of a broader re-assay initiative, with additional Hervieux West results expected shortly, followed by the commencement of the Hervieux East re-assay program.

The expanded analytical dataset will support geological modelling, resource updates and engineering studies across the Company's flagship titanium-vanadium project in Québec. Why this Matters to Investors Confirms the continuity and scale of high-grade titanium-vanadium mineralisation across the expanded La Blache Project. Accelerates future resource estimation and development studies by leveraging recovered historic drill core rather than undertaking extensive replacement drilling.

Enhances project value through confirmation of additional critical minerals including gallium, scandium and chromium, with potential to provide incremental economic upside. Creates a pipeline of near-term catalysts as additional re-assay results, geological modelling and updated resource work are delivered. Aligns metallurgy with geology , with the expanded critical‑metals dataset guiding the geometallurgical application of Temas' proprietary RCL Platform Technology at La Blache.

Selected Significant Mineralized Intercepts: HWR-10-052 with 143.0m @ 88.7% Fe₂O₃ + TiO₂, 0.48% V₂O₅ and 1,431 ppm Cr, 60.5 g/t Ga and 19.2 ppm Sc from 47m, HWR-10-034 with 27.3m @ 88.2% Fe₂O₃ + TiO₂, 0.44% V₂O₅ and 786 ppm Cr, 57.6 g/t Ga and 19.2 ppm Sc from 32.7m, HWR-10-034 with 24.2m @ 90.4% Fe₂O₃ + TiO₂, 0.45% V₂O₅ and 760 ppm Cr, 59.0 g/t Ga and 20.0 ppm Sc from 4.3, HWR-10-051 with 22.3 @ 77.3% Fe₂O₃ + TiO₂, 0.37% V₂O₅ and 817 ppm Cr, 50.4 g/t Ga and 20.1 ppm Sc from 70m, HWR-10-051 with 11.2m @ 87.5% Fe₂O₃ + TiO₂, 0.48% V₂O₅ and 1,354 ppm Cr, 59.3 g/t Ga and 19.3 ppm Sc from 112.6m, HWR-10-014 with 11.3m @ 78.1% Fe₂O₃ + TiO₂, 0.40% V₂O₅ and 1,812 ppm Cr, 52.6 g/t Ga and 18.0 ppm Sc from 3.0m, HWR-10-043 with 10.2m @ 90.2% Fe₂O₃ + TiO₂, 0.47% V₂O₅ and 910 ppm Cr, 61.1 g/t Ga and 19.6 ppm Sc from 142.9, HWR-10-045 with 9.1m @ 82.5% Fe₂O₃ + TiO₂, 0.40% V₂O₅ and 831 ppm Cr, 55.9 g/t Ga and 17.1 ppm Sc from 72.3. These results provide a consistent basis for comparison of the deposits across the property and reinforce the presence of broad, high-grade Fe-Ti-V oxide mineralisation within the Hervieux West system. VANCOUVER, BC / ACCESS Newswire / June 29, 2026 / Temas Resources Corp . ("Temas" or the "Company") (ASX:TIO)(CSE:TMAS)(OTCQB:TMASF)(FSE:26P0) is pleased to announce the first results from its systematic re-assay program at the Hervieux West deposit within its 100%-owned La Blache Titanium-Vanadium Project in Québec, Canada.

As previously announced on March 27, 2024 , Temas entered into an option agreement to acquire a 100% interest in the La Blache Lake Extension property. The property lies immediately west and along trend from the Company's Farrell-Taylor mineralisation. This original claim block includes drill defined mineralisation at both the Hervieux East (HE) and Hervieux West (HW) deposits.

The Company's claims lie within the La Blache anorthosite complex, hosted by anorthosite, leucotroctolite or leuconorite, and are coincident with the fold hinge of a regional anticline. Mineralisation appears to occur sub-parallel to this axis, with mineralisation at Hervieux West (HW), Hervieux East (HE), Hervieux East Extension (HEE) and Schmoo Lake (Schmoo) being added to Farrell-Taylor (FT) and Farrell-Mason (FM) trend that were already in Temas' control. Temas is now positioned to advance the three currently drill-defined deposit areas (FT, HW, HE), with significant upside where mineralisation can be extended in several areas as indicated on the map.

Figure 1: Map of La Blache Mineral Property, including Known Deposit Locations The program is designed to unlock the full value of the recently expanded La Blache Project by applying a consistent analytical methodology across both historical and modern drilling datasets. The initial results validate extensive titanium-vanadium-iron oxide mineralisation while also confirming the presence of gallium, scandium and chromium within the mineralised system. Together, these critical minerals have the potential to enhance the long-term value of the Project as Temas progresses future resource estimation, metallurgical optimisation and development studies.

The added impact of material concentrations of 6 critical and strategic metals at La Blache, inform Temas management on the direction and next steps for extractive metallurgy innovation using the Temas proprietary Regenerative Chloride Leach (RCL) Platform Technology. Importantly, the Company fully recovered more than 36 kilometres of historical drill core , providing a major strategic advantage by allowing wholesale re-assay and geological review without the cost and time associated with replacement drilling. Management believes this work materially accelerates the technical advancement of the expanded La Blache Project while reducing exploration risk and preserving capital.

The analytical program utilises Temas' preferred fused-bead assay methodology to improve analytical consistency across the Project and to provide a robust dataset for future geological interpretation and resource evaluation. The results reported in this release form the first stage of a broader re-assay campaign aimed at strengthening confidence in La Blache's titanium‑vanadium mineralisation and defining the distribution of key accessory critical metals. CEO Commentary Temas President and Chief Executive Officer Tim Fernback commented: "These initial results represent another important milestone in unlocking the full value of our expanded La Blache Project.

The successful recovery and systematic re-assay of more than 36 kilometres of historic drill core provides us with an exceptional opportunity to accelerate our technical development while significantly reducing both cost and execution risk. The results continue to confirm the scale and continuity of high-grade titanium-vanadium mineralisation while also demonstrating the presence of valuable critical minerals including gallium, scandium and chromium. As governments and industry increasingly focus on securing reliable supplies of critical minerals, we believe La Blache is becoming an increasingly strategic North American asset.

This work provides an important foundation for geological modelling, resource updates and engineering studies as we continue advancing La Blache toward development. With additional Hervieux West results expected shortly, followed by Hervieux East, we look forward to delivering a steady pipeline of technical and corporate catalysts for shareholders." Systematic Re-Assay Program Strengthens Confidence in La Blache The Hervieux West re-assay program forms part of Temas' broader strategy to establish a consistent analytical database across the expanded La Blache Project. The program validates historical drilling using the Company's preferred fused-bead analytical methodology while providing enhanced geochemical data to support geological modelling, resource estimation and engineering studies.

By re-assaying historical drill core recovered from the Project, Temas significantly accelerates technical evaluation while reducing the cost, time and environmental footprint associated with extensive replacement drilling. The Company considers this an efficient pathway toward advancing the Project through its next phase of development. The current focus is on confirming the distribution and continuity of titanium, vanadium and iron mineralisation while also quantifying strategic accessory critical metals including gallium, scandium and chromium.

These additional elements have the potential to enhance Project economics and further support La Blache's position as a key North American critical mineral asset. The results released today represent the first phase of the Hervieux West re-assay campaign, with additional assay results expected over the coming weeks as laboratory work progresses. Re-Assay Results Confirm Extensive Mineralisation The initial results continue to demonstrate the exceptional scale, continuity and thickness of the titanium-vanadium-iron oxide system at Hervieux West.

Importantly, the program confirms the consistency of the mineralised horizons using Temas' preferred analytical methods and provides greater confidence in the distribution of critical metals throughout the deposit. The Company believes these results will provide a key technical foundation for geological modelling and for the integration of the Hervieux West dataset into property wide resource evaluation and development studies in the future. Supporting Future Resource Growth Hervieux West is one of several significant titanium-vanadium deposits within the expanded La Blache Project.

The current re-assay program is improving analytical consistency across historical datasets and providing additional confidence for future geological interpretation. The program supports Temas' objective of incorporating a broader critical minerals suite into project evaluations, including gallium, scandium and chromium where appropriate. By leveraging the substantial historical drilling investment, the Company expects to enhance the efficiency of future resource development activities and strengthen the technical basis for subsequent engineering studies.

As further results are received, Temas will continue to refine its geological understanding of the La Blache and advance the Project toward resource updates and development studies. Drill Results Overview The original Hervieux West drilling program was carried out in two phases: Phase I consisted of holes HW-10-001 to HW-10-040 drilled in winter, and Phase II consisted of holes HW-10-041 to HW-10-060 drilled in the summer months. The historic operator was successful in defining significant volumes of mineralisation with a nominal drill spacing of 50 m, as well as defining edges to the deposits.

The original detailed geologic database has been significantly improved through the relogging and re-assaying program allowing Temas to build a robust geometallurgic model when coupled with our RCL testing results to constrain a robust maiden MRE for the Company. Table 1: Significant Drill Intercepts for Hervieux West Drilling* Received to Date * DH designators are HWR indicating that these are the re-assay of the recovered historic core. Cut-off grades for massive oxide classification are 78% Fe₂O₃ + TiO₂ + ≤4.5% MgO, with internal dilution of 2.9m and minimum composite of 2.5m.

Massive oxide classification requires a maximum of 4.5% MgO. Cut-off grades for semi-massive oxide classification and determination of a significant intercept are 20% Fe₂O₃ + TiO₂ + ≤4.5% MgO, with internal dilution of 2.9m and minimum composite of 2.5m. V₂O₅ (%) has been recalculated from V (ppm) using the ALS oxide conversion factor of 1.785 for V to V₂O₅.

Table 1 presents the results of the first 32 drill holes received with 12 drill holes returning significant mineralisation intercepts, and 20 drill holes defining the outer edges of the mineralized body. The intercepts calculated from the 2026 assay dataset using length-weighted compositing. The table reports downhole intervals and does not imply true widths.

All average grades are length-weighted over the reported composite interval, including any internal dilution allowed under the stated criteria. There are 28 holes, pending results from ALS Limited, lying predominantly within the mineralized volume of the known deposits which will be the subject of a separate press release. The Temas geological team selected the initial 32 drill holes, which represent the margins of the Hervieux West deposit, as the first phase of the re-assay program in order to better understand the distinction between the Massive Oxide ("MO") and the Semi-massive Oxide ("SMO") mineralisation on the contact with the host rock, and to identify areas where the deposit might remain open.

The second phase of the Hervieux West re-assay program will focus on holes primarily defining the core of the MO mineralisation drilled to date, and where Temas expects to confirm high-grade Fe₂O₃ + TiO₂ intervals across of the majority of the 28 remaining RHW-series drill holes that are pending re-assay based on the visually distinct massive vanadium titanomagnetite (VTM) is easily identified. The mineralisation within the known La Blache VTM system is dominantly characterised by massive and subordinate semi-massive Fe-Ti-V oxide hosted within the La Blache Anorthosite Complex. The 60 historic holes currently defining the Hervieux West deposit represent a total of 9,352 m.

These holes were drilled over a strike distance of 950 m along a northeast-southwest axis. The topography of this block has many hills, with some to force drilling of some holes in the interpreted direction of the dip of the mineralisation. The holes were either oriented N334° or N154° with a plunge of -50°.

Selected holes were drilled at a plunge of -70° or -87° to test the continuity of the mineralisation at depth. Table 2: Collar Details for Historic Hervieux West Drilling, Provided in NAD83/UTM Zone 19N. Holes with significant intercepts are in black bold font, and the holes used to map and define the edges of the deposit are in blue font. temFigure 2: Annotated drill grid map for the historic Hervieux West development drilling.

COO Commentary David Caldwell, Chief Operating Officer of Temas Resources, commented: "The successful recovery and systematic re-assay of the historic La Blache drill core is providing Temas with a highly valuable technical dataset that strengthens our understanding of the Project while significantly accelerating future resource work. I continue to be impressed with the nature of the MO mineralisation in the La Blache system, with consistent in situ grades of +80% over large bulk mineable volumes. The SMO acts an added sweetener to assist with the ultimate stripping on a system that outcrops along over a kilometer of strike, with only about 700m of this drilled to date.

The consistency of these first results supports our confidence in the continuity of the Hervieux West mineralised system and provides a solid platform for the next phase of geological modelling, domaining and technical evaluation. The current dataset provides a strong foundation for progressing assessment of a potential JORC Compliant Mineral Resource Estimate, subject to completion of geological modelling and all necessary technical and Competent Person reviews. In addition, the results highlight opportunities to further test the mineralised system both along strike and at depth.

As additional Hervieux West assays are completed and the Hervieux East program commences, we expect the expanded analytical database to play an increasingly important role in supporting future resource estimates, engineering studies and development planning across the now unified La Blache Project." Next Steps The initial Hervieux West re-assay results mark the first stage of a broader technical program designed to enhance the Company's understanding of the expanded La Blache Project. Over the coming months, Temas intends to: Complete the commissioning of its new metallurgical lab in Ontario Canada. Finalize the remaining Hervieux West re-assay program.

Commence the systematic re-assay of the recovered Hervieux East drill core. Continue geological domaining and interpretation using the enhanced analytical dataset. Integrate the new analytical information into updated geological and resource models.

Advance technical studies to support future resource updates and engineering evaluations across the expanded La Blache Project. The Company expects these activities will establish a series of important technical milestones while progressively reducing project risk and supporting the advancement of one of North America's largest undeveloped titanium-vanadium systems. Temas anticipates releasing additional Hervieux West assay results from the remaining drill holes in the coming weeks, followed by commencement of the Hervieux East re-assay program.

These programs represent another important step in Temas' strategy of systematically advancing La Blache while building a comprehensive technical dataset to support future resource growth, development studies and the deployment of the Company's proprietary Regenerative Chloride Leach (RCL) processing technology. With one of the largest titanium-vanadium projects in North America and a proprietary processing platform designed to improve the economics and sustainability of critical mineral production, Temas believes it is well positioned to participate in the growing demand for secure Western supplies of critical minerals. - ENDS - Approved for Release by the Board of Directors For further information, contact: Follow us: https://temasresources.com https://x.com/TMASResources https://www.linkedin.com/company/temas-resources-corp/ Foreign Resource Cautionary Statements Details regarding the foreign mineral resource estimate, project details and associated exploration results are set out in the Company's Prospectus dated 29 August 2025 (the "Prospectus"). The Company confirms that it is not aware of any new information or data that materially affects the information included in the La Blache Project description in the Prospectus.

The Prospectus is available on the Company's website at www.temasresources.com/investors or through the ASX platform. The estimates of the quantity and grade of mineralisation for the La Blache Project are "foreign estimates" within the meaning of the ASX Listing Rules and are not reported in accordance with the JORC Code 2012. A competent person has not undertaken sufficient work to classify the foreign estimates as mineral resources in accordance with the JORC Code 2012.

It is uncertain that following evaluation and further exploration work that the foreign estimates will be able to be reported as mineral resources in accordance with the JORC Code. Disclaimer No representations or warranty, express or implied, is made by the Company that the material contained in this announcement will be achieved or proved correct. Except for the statutory liability which cannot be excluded, each of the Company, its directors, officers, employees, advisors, and agents expressly disclaims any responsibility for the accuracy, fairness, sufficiency or completeness of the material contained in this announcement and excludes all liability whatsoever for any loss or damage which may be suffered by any person as a consequence of any information in this announcement or any omission therefrom.

Any opinions expressed in the announcement are subject to change without notice. Competent Person's / Qualified Person's Statement The information in this announcement that relates to Exploration Results and Mineral Resources for the La Blache and Lac Brûlé Titanium-Vanadium Projects in Québec, Canada, is based on, and fairly represents information and supporting documentation prepared and compiled by Mr. Blake Collins, BSc (Hons), MAIG, and Principal Consultant of Head Exploration Pty Ltd. Mr. Collins is a Member of the Australasian Institute of Geosciences (MAIG). He has sufficient experience that is relevant to the style of mineralisation, the type of deposit under consideration, and the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012) and as a Qualified Person as defined by NI43-101.

Mr. Collins is the Principal Consultant of Head Exploration Pty Ltd, which provides independent geological and technical advisory services to Temas Resources Corp. He has reviewed the information presented in this announcement and consents to the inclusion in the report of the matters based on his information in the form and context in which they appear. Head Exploration Pty Ltd is an independent geological and technical consultancy and has no direct or indirect interest in Temas Resources Corp. ABOUT TEMAS RESOURCES Revolutionizing Metal Production Proprietary IP. Global Licensing.

Titanium & Critical Minerals. Temas Resources Corp. (ASX:TIO)(CSE:TMAS)(OTCQB:TMASF)(FRA:26P0) is a technology-driven critical minerals company advancing a dual-business model built around proprietary processing innovation and strategic mineral ownership. The Company's patented Regenerative Chloride Leach (RCL) technology platform delivers significant operational cost reductions - validated at up to 65% lower than traditional processing - while dramatically reducing energy use and environmental impact.

Temas' RCL process is the foundation of its technology licensing and partnership business, enabling global mining and materials companies to adopt sustainable, high-margin metal extraction methods across a range of critical minerals including titanium, vanadium, nickel, and rare earth elements.
 Complementing its technology division, Temas also owns 100% of two advanced titanium-vanadium-iron projects in Québec, Canada - La Blache and Lac Brûlé - which are strategically positioned to feed directly into the Company's proprietary processing platform, creating a fully integrated mine-to-market supply chain for Western metals. Through this combination of innovative IP commercialization and resource ownership, Temas Resources is positioned to deliver scalable, low-carbon solutions that strengthen Western critical-mineral independence and create long-term value for shareholders. Benefits the ORF - RCL Technology: The RCL platform technology involves the hydrometallurgical mineral extraction of concentrates, whole ores, slags and tailings to enhance recovery of critical metals, battery metals, Platinum Group Minerals ("PGMs"), precious and base metals and Rare Earth Element ("REE") recovery at materially higher through-yields and lower capital and operating costs than many of the conventional approaches that are in use traditionally.

This novel RCL technology is ideally suited to treat increasingly complex ores in an environmentally sensitive manner. Pilot Testing Complete: The Company has completed a pilot test of approximately 1 ton of material from its La Blache TiO 2 mineral property yielding 88 kgs of a 99.8% pure TiO 2 commercial grade product. 1 Validated Cost Reduction: A significant cost reduction of over 65% 2,3 is validated for TiO 2 processing using the RCL platform technology (e.g., reagent recycling, potentially lower energy use, optimized recovery etc.). These fundamental process efficiencies are expected to translate into economic advantages when applying the platform to Nickel or other target minerals hosted in complex ores.

Environmental Performance: The closed-loop design and high reagent recycling rates are core to the RCL platform, irrespective of the target mineral. Over 69% lower operating costs compared to conventional processing due to its core features operating at near ambient temperatures. 3 This means the reduced environmental footprint and enhanced ESG profile are benefits that extend to ores and minerals previously noted, not just TiO 2 . High Recovery Potential: Just as we've demonstrated high-quality, 99.8% TiO 2 product from pilot testing 1 the RCL platform is engineered for high recovery and purity of all target metals.

Our metallurgical expertise focuses on optimizing these recoveries and maximizing margins for each specific mineral. RCL results in a quicker and more complete liberation of the target metals using atmospheric pressure and lower temperatures than competing methods and improves the selectivity and efficiency of subsequent solvent extraction steps. Management believes that this novel metallurgical process can be applied to many complex resource deposits worldwide, enhancing both extraction and recovery for the operator. 1 Source: Temas Resources Corp. "Pilot Scale Evaluation of Temas La Blache Ilmenite - Final Report PRO 21-16," 24 June 2022. 2 These metallurgical test results and cost-reduction data were first reported in the Company's Canadian market announcement dated 13 April 2021, titled "Temas Resources Acquires 50 % of Green Mineral Process Developer ORF Technologies Inc." 3 The cost-reduction figure is supported by independent evaluation conducted by the Natural Resources Research Institute (University of Minnesota, 2017) and subsequent pilot-scale validation by ORF Technologies Inc., as detailed in Temas Resources news releases of 2021 and 2022.

Cautionary Note Regarding Forward-Looking Statements Neither the Australian Securities Exchange nor the Canadian Securities Exchange accepts responsibility for the adequacy or accuracy of this news release. This press release contains forward-looking statements within the meaning of applicable securities laws. Actual results could differ materially from those anticipated due to assumptions, risks and uncertainties associated with mineral exploration, equity financing markets, and receipt of regulatory and shareholder approvals.

ASX Compliance Statement This announcement reports Exploration Results from the 2026 re-assay of original 2022 drill pulps and related significant-intercept generation. Sections 1 and 2 of JORC Table 1 are included in Appendix 1. No Ore Reserves are reported in this announcement.

APPENDIX 1: JORC Code, 2012 Edition - Table 1 Section 1: Sampling Techniques and Data Section 2 Reporting of Exploration Results SOURCE: Temas Resources Corp. View the original press release on ACCESS Newswire ACCESS Newswire June 29, 2026 - 4:00 AM PDT News by QuoteMedia www.quotemedia.com