Announcement • 12h
Standard Uranium Ltd., Annual General Meeting, Sep 24, 2026 Standard Uranium Ltd., Annual General Meeting, Sep 24, 2026. Location: british columbia, vancouver Canada Announcement • Jul 17
Standard Uranium Reports Geochemical Assay Results from Winter 2026 Drill Program At Corvo Uranium Project Standard Uranium Ltd. 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. The results of the winter drill 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 were identified in drill hole CRV-26-009, with enriched concentrations of Total Rare Earth Element Oxides plus Yttrium greater than 0.1%. The Project is currently under a three-year earn-in option agreement with Aventis Energy Inc. 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 Uranium. 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 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; Including 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 inaugural Corvo drill program began testing three high-priority target areas defined by data integration and modeling of a project-wide Time-Domain Electromagnetic 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 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 29 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 40 years, and the results confirm uranium fertility across multiple target areas. Standard and Aventis will incorporate the results of the 2026 program into the exploration strategy at Corvo for follow-up exploration programs targeting basement hosted uranium mineralization. The analytical results in this 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. Announcement • Jun 16
Standard Uranium Provides Drilling Update on the 2026 Drill Program At Flagship Davidson River Project Standard Uranium Ltd. announced drilling on June 1, 2026, and a total of 900 metres have been completed to date in two in-progress holes on the Bronco and Thunderbird corridors. The first drill hole of the program, DR-26-040, on the Bronco corridor has intersected a total of three metres of anomalous radioactivity (>300 counts per second) with peaks up to 540, 780, and 1,650 counts per second from 464.0 to 466.0 metres. Both ongoing drill holes have intersected strongly graphitic basement structures associated with increased hydrothermal alteration including hematite and clay. Intervals of anomalous radioactivity intersected in hole DR-26-040 are associated with brittle reactivated structures along the Bronco corridor. Drilling is ongoing and is planned to continue through August 2026. The summer drill campaign is targeting basement-hosted, high-grade uranium mineralization on the same regional structural trends that host significant uranium deposits including NexGen Energy’s Arrow deposit and Paladin Energy’s Triple R deposit. Drill targets prioritized and locked-in across three of the four major conductor corridors at Davidson River – Warrior, Bronco, and Thunderbird – based on the integration of the first-ever ExoSphere Multiphysics surveys completed in the southwest Athabasca Basin region. Drills hitting intended meterage with two drill rigs deployed 24/7 to maximize metres drilled and accelerate the testing of the Company’s highest-confidence targets ever generated on the property. Davidson River includes 10 contiguous mineral dispositions totaling 30,737 hectares and lies approximately 25 km west of the Arrow and Triple R uranium deposits and 75 km south of the past-producing Cluff Lake uranium mine. The Company has completed 16,561 metres of diamond drilling in 39 drill holes on the Davidson River property since 2020, which has further refined the exploration strategy for high-grade basement hosted uranium mineralization on the property. The flagship property hosts more than 70 km of conductive trends across four main structural corridors – the Warrior, Bronco, Thunderbird, and Saint trends. All four geophysical corridors contain multiple target areas favorable for high-grade basement hosted uranium mineralization. Geochemical assays are pending. Samples collected for analysis were sent to SRC Geoanalytical Laboratories in Saskatoon, Saskatchewan for preparation, processing, and ICP-MS or ICP-OES multi-element analysis using total and partial digestion and boron by fusion. 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 Uranium’s quality assurance/quality control protocols. All sample results will be subject to internal quality assurance/quality control protocols prior to subsequent release. Natural gamma radiation from rocks reported in this news release was measured in counts per second using a handheld RS-125 super-spectrometer and RS-120 super-scintillometer. Readers are cautioned that scintillometer readings are not uniformly or directly related to uranium grades of the rock sample measured and should be treated only as a preliminary indication of the presence of radioactive minerals. Because the orientation of mineralization is unknown, true widths are unknown and reported intervals represent core lengths. The RS-125 and RS-120 units supplied by Radiation Solutions Inc. have been calibrated on specially designed Test Pads by RSI. Standard Uranium maintains an internal quality assurance/quality control procedure for calibration and calculation of drift in radioactivity readings through three test pads containing known concentrations of radioactive minerals. Internal test pad radioactivity readings are known and regularly compared to readings measured by the handheld scintillometers for quality assurance/quality control purposes. Historical data disclosed in this news release relating to sampling results from previous operators are historical in nature. Neither the Company nor a qualified person has yet verified this data and therefore investors should not place undue reliance on such data. The Company’s future exploration work may include verification of the data. The Company considers historical results to be relevant as an exploration guide and to assess the mineralization as well as economic potential of exploration projects. Any historical grab samples disclosed are selected samples and may not represent true underlying mineralization. Using a handheld RS-125 Super-Spectrometer, readings exceeding 300 counts per second are considered "anomalous," while those exceeding 65,535 counts per second are considered "off-scale." The Company defines uranium concentrations greater than 1.0 wt.% as "high-grade." Natural gamma radiation reported in this news release was measured in counts per second using a handheld RS-125 super-spectrometer. Readers are cautioned that handheld scintillometer/spectrometer and/or gamma probe readings are not uniformly or directly related to uranium grades of the rock sample measured and should be treated only as a preliminary indication of the presence of radioactive minerals. The Company cautions that results or discoveries on properties in proximity to the Company’s properties may not necessarily be indicative of the presence of mineralization on the Company’s properties. 
