Announcement • Jul 15
Aventis Energy Inc. Confirms Uranium Enrichment in All Winter 2026 Drill Holes At the Corvo Uranium Project
Aventis Energy Inc. reported a summary of geochemical assay results from its winter 2026 drill program at the Corvo Uranium Project located near Wollaston Lake in northeastern Saskatchewan. Analytical results from the winter 2026 drill campaign confirm anomalous uranium in all nine completed drill holes, including multiple intervals of significant uranium enrichment (>100-350 ppm U) in six drill holes. Calculated Uranium: Thorium (“U:Th”) ratios >2:1 from the winter results consistently indicate hydrothermal uranium input. Uranium mineralization is hosted within deformed and altered paragneiss, pegmatite, and granitoid orthogneiss units. Structural settings include hydrothermally altered fault zones and late quartz-carbonate veining – indicating a hydrothermal uranium-fertile system open along strike and at depth. Several key uranium pathfinder elements are present in anomalous quantities in multiple drill holes within the crystalline basement, providing vectoring information for future programs. This includes anomalous Boron up to 13,600 ppm at 172.5 m in hole CRV-26-002. Spectroscopy results confirm the presence of fracture-hosted dravitic-clay in four of nine completed drill holes. Following the review of drilling and geophysical data sets, additional surface exploration and a second phase drilling program is being planned to follow-up along strike of mineralized drill holes and continue testing of priority regional drill targets across the Project. Several priority uranium targets remain along more than 25 km of structural strike length. The results of the Program highlight anomalous uranium, boron, and other pathfinder elements indicative of a basement-hosted uranium system across multiple target areas on Corvo. In addition, local intervals of elevated Rare Earth Elements (“REE”) were identified in drill hole CRV-26-009, with enriched concentrations of Total Rare Earth Oxides plus Yttrium (“TREO”) greater than 0.1%. The Project is currently under a three-year earn-in option agreement with Standard Uranium Ltd. A total of 2,457 metres were completed across ten reconnaissance drill holes at the Manhattan, Brooklyn, and Tribeca target areas. One drill hole was abandoned due to ground conditions. The winter 2026 drill Program was funded by Aventis and operated by Standard. The inaugural Corvo drill Program began testing three high-priority target areas defined by data integration and modeling of a project-wide Time-Domain Electromagnetic (“TDEM”) survey, a 5,185-station ground gravity survey, and surficial geological information. Inaugural drilling intersected key characteristics of a uranium-bearing mineralized system across three target areas, confirming the presence of significant fault systems linked to uranium enrichment and prospective hydrothermal alteration in the basement rock. Partial-digestion uranium assay results from the Program are summarized in Table 1. Partial-digestion uranium assays may provide a more effective exploration vector than total-digestion assays because they emphasize hydrothermal uranium while reducing the contribution from resistant accessory minerals. During early-stage targeting, interpreting partial digestion assays and U:Th ratios can be used as an exploration vector and improve discrimination between fertile lithologies and genuinely mineralized systems. Targets were selected and prioritized through an iterative approach working in collaboration with Convolutions Geoscience Corporation, targeting compelling geophysical signatures and favorable geological/structural settings. Recent prospecting and mapping across the Project outlined multiple mineralized outcrops and boulders, including the Manhattan showing which returned results up to 8.10% U3O8 at surface. The Company considers concentrations of uranium >10 ppm U to be “weakly anomalous”, concentrations >50 ppm U to be “moderately anomalous” and concentrations >100 ppm U to be “highly anomalous”. Intervals represent drilled core lengths; True thicknesses of mineralized zones cannot be determined with certainty at this stage of exploration. The analytical results in this news release are being integrated with the detailed logging information and geophysical datasets to prioritize follow-up target areas for future drill testing, in addition to testing of numerous other priority regional targets. The Company believes the Project is highly prospective for the discovery of shallow, high-grade basement-hosted uranium mineralization akin to the Rabbit Lake deposit and the recently discovered GMZ and Ackio zone. Located just outside the current margin of the Athabasca Basin, Corvo boasts more than twenty-nine km of structural corridors with multiple untested drill targets with minimal cover of glacial till. This first pass drill Program marks the first drilling on the Project in more than forty years, and the results confirm uranium fertility across multiple target areas. Aventis and Standard will incorporate the results of the 2026 Program into the exploration strategy at Corvo for follow-up exploration programs targeting basement hosted uranium mineralization. Samples collected for analysis were sent to SRC Geoanalytical Laboratories in Saskatoon, Saskatchewan for preparation, processing, and ICP-MS multi-element analysis using total and partial digestion and boron by fusion. Basement samples were tested with ICP-MS2 uranium multi-element exploration package plus boron. All sandstone samples, and basement samples marked as radioactive upon arrival to the lab were also analyzed using the U3O8 assay (reported in wt.%). Basement rock split interval samples range from 0.1 to 1.0 m. SRC is an ISO/IEC 17025/2005 and Standards Council of Canada certified analytical laboratory. Blanks, standard reference materials, and repeats were inserted into the sample stream at regular intervals in accordance with Standard’s quality assurance/quality control protocols. All samples passed internal QA/QC protocols and the results presented in this news release are deemed complete, reliable, and repeatable. Samples containing clay alteration were sent to Rekasa Rocks Inc. in Saskatoon, Saskatchewan to be analyzed by Short Wavelength Infrared Reflectance via a Portable Infrared Mineral Analyzer to verify clay species. REE oxide conversion factor were verified using the following formulas: Convert REE (Rare Earth Element) ppm to REO (Rare Earth Oxide): REO % = (ppm /Atomic Weight of REE) * (Molecular Weight of REO /10,000). Element-to-oxide conversion factor: Molecular weight of the oxide /atomic weight of the element. For oxides with more than one metal cation, account for the number of cations in the formula.
