Original News Release
Neoterrex samples 12.87% TREO at Revolver
Mr. Mathieu Stephens reports
NEOTERREX ASSAYS 12.87% TREO AT ITS REVOLVER PROJECT, INCLUDING 2.1% NEODYMIUM OXIDE
Neoterrex Minerals Inc. has released assay results from its 2025 summer exploration program at the 100-per-cent-owned Revolver rare-earth elements (REE) project, located in the Saguenay region of Quebec. The program included reconnaissance prospecting, detailed geological mapping and systematic sampling over high-priority targets.
Highlights
12.87 per cent total rare-earth oxides (TREO) from grab sample L809607, collected near a previously identified occurrence;
Sample L809607 contains 2.10 per cent neodymium oxide, 0.40 per cent praseodymium oxide, 0.44 per cent dysprosium oxide and 0.32 per cent erbium oxide;
Five samples returned values exceeding 1 per cent TREO;
Preliminary petrographic observations indicate REE mineralization is primarily hosted in monazite.
Fieldwork at the project has extended mineralized zones first identified in 2024 in the western portion of the project. To date, an area measuring approximately 400 metres by 100 metres has yielded seven grab samples returning more than 1 per cent TREO, including the high-grade sample L809607 (12.87 per cent TREO). This sample was collected from a coarse-grained, metasomatized unit within a quartzolite containing visible monazite, xenotime and zircon. The rock exhibits strong fenitic alteration characterized by biotite and potassium feldspar, with syenite observed nearby. A total of 49 grab samples were obtained form the project with the best results displayed in the attached table.
These geological features, combined with regional magnetic and radiometric anomalies, suggest a structurally controlled, syenite-hosted REE system, comparable with other high-grade occurrences in the region. Due to overburden cover, mechanical stripping and trenching will be required to better evaluate the full extent of mineralization.
Mathieu Stephens, president and chief executive officer of Neoterrex, commented: "We are very pleased with the results from our ongoing exploration at the project, particularly within the western portion of the project where the 12.87 per cent TREO sample ranks among the highest rare-earth grades reported in Quebec according to government databases (Sigeom). We are also encouraged that the mineralization not only includes significant neodymium oxide (2.1 per cent) but also dysprosium oxide (0.44 per cent), a heavy rare-earth, and all hosted in monazite - a mineral known for its favorable metallurgical properties for rare-earth extraction."
The project benefits from excellent infrastructure, situated only 39 kilometres from the Niobec mine and 35 kilometres from the city of Saguenay, providing direct access to road networks, power and skilled labour.
Neoterrex has initiated mineralogical and metallurgical testwork to characterize the REE mineralization and assess processing potential. Planning is under way for the next phase of exploration, which will include targeted geophysical surveys, mechanical stripping, trenching and initial drilling over the most prospective areas delineated in 2024 to 2025.
Initial results from the project underscore its potential to develop into a new rare-earth district in Quebec, with both light and heavy rare-earth elements essential for high-strength permanent magnets used in electric vehicles, wind turbines and advanced defence technologies. The strategic importance of such discoveries continues to grow as China, responsible for approximately 70 per cent of global rare-earth supply and an even higher percentage of refined output, has recently tightened its export controls on key REE-bearing materials and processing technologies. These measures, aimed at reinforcing domestic industrial priorities, have heightened global concerns over supply chain security for critical minerals essential to electric vehicles, wind turbines, advanced electronics and defence systems.
As governments in North America and Europe accelerate initiatives to establish independent, ethically sourced rare-earth supply chains, discoveries like those at the project gain substantial strategic value. Neoterrex's results highlight the potential for Quebec to play a leading role in reshoring rare-earth production within a transparent, environmental-, social- and governance-focused framework supported by strong local infrastructure and technical expertise.
QA/QC (quality assurance/quality control)
Analyses were performed by ALS Canada Ltd. with the analytical procedure performed in Vancouver (British Columbia). All samples were analyzed using the method ME-MS71L and OGREE. Ce, Dy, La, Nd, Pr and Y were used for monitoring the analyses. Blanks and certified reference materials (CRMs) with known grades (OREAS 460) were inserted among the samples.
Qualified person
The technical and scientific content of this news release has been reviewed, verified and approved by Mathieu Stephens, PGeo, president and chief executive officer of Neoterrex, and a qualified person as defined under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.
About Neoterrex Minerals Inc.
Neoterrex's projects are located in Quebec, a province recognized for its exceptional infrastructure, supportive regulatory framework and growing importance within the North American critical minerals supply chain. With a portfolio of well-positioned assets, Neoterrex is strategically aligned to capitalize on the accelerating demand for rare-earth elements and other key materials essential to the defence industry and clean-energy transition.
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