Mr. Michael Mulberry reports

AVENTIS ENERGY PREPARES TO MOBILIZE FOR INAUGURAL DRILL PROGRAM AND ANNOUNCES COMPLETION OF GROUND GRAVITY SURVEY ON THE CORVO URANIUM PROJECT

Aventis Energy Inc. has completed an extensive high-resolution ground gravity survey across the Corvo uranium project. Additionally, the company and Standard Uranium are pleased to announce that final planning is complete for the inaugural winter drill program on the Corvo uranium project, situated in the prolific eastern Athabasca basin region. Exploration teams will be mobilizing to the field in early February, ahead of schedule.

Highlights:

• Completion of high-resolution ground gravity survey: the company has completed an extensive high-resolution ground gravity survey across the Corvo project, covering more than 29 kilometres of electromagnetic conductor strike length;
• Drill plan finalized: Approximately 2,500 to 3,000 metres planned across eight to 10 drill holes, targeting shallow high-grade basement-hosted uranium mineralization;
• Robust and shallow drill targets: drill plans comprise skid-supported diamond drilling focused on high-priority uranium targets refined by geophysical work completed by the company in 2025; uranium target zones on the project lie within less than 200 to 300 metres below surface;
• Untapped uranium potential: one diamond drill will focus on the highest-priority target area along the northern EM corridor, investigating the never-before-drilled Manhattan showing (8.10 per cent triuranium octoxide at surface), coincident with modelled electromagnetic conductors for the first time;
• Fully financed: Aventis will be financing 100 per cent of the program to meet the year-one expenditure requirements under the option agreement;
• Key vendors secured: the company has engaged all key contracts for the program, and diamond drilling crews will mobilize to the Corvo project in January to begin constructing project access.

Michael Mulberry, chief executive officer of the company, commented: "With drilling and mobilization plans finalized, we are excited to advance Corvo into its maiden drill program in early 2026. Recent high-resolution geophysical work has refined shallow, high-priority uranium targets, including the never-before-drilled Manhattan showing, reinforcing our confidence in the project's potential."

2026 exploration programs

In late 2025, the company contracted MWH Geo-Surveys (Canada) Ltd. to complete an extensive 50-metre-by-200-metre ground gravity survey covering more than 29 kilometres of conductive strike length, designed to aid in identifying density anomalies that may represent hydrothermal alteration systems coinciding with uranium fertile electromagnetic conductor trends. MWH completed the geophysical grid in early January, 2026, and the survey comprised more than 5,000 individual gravity measurement stations.

A skid-assisted diamond drill program totalling approximately 3,000 metres is planned for winter 2026, which will mark the first drill program on the project in more than 40 years. Drilling will target high-priority areas, including the never-before-drilled Manhattan showing and other newly identified radioactive occurrences across the property. Outcrop grab samples collected earlier this year returned uranium assays reaching a maximum of 8.10 per cent U3O8 at the Manhattan showing.

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 of the current margin of the Athabasca basin, Corvo boasts shallow drill targets with bedrock under minimal cover of glacial till.

Qualified person statement

The scientific and technical information contained in this news release has been reviewed, verified and approved by Sean Hillacre, PGeo, president and vice-president, exploration, of Standard Uranium, a qualified person as defined in National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

Samples collected for analysis were sent to SRC Geoanalytical Laboratories in Saskatoon, Sask., for preparation, processing, and ICP-MS or ICP-OES multielement analysis using total and partial digestion and boron by fusion. Radioactive samples were tested using the ICP1 uranium multielement exploration package plus boron. All samples marked as radioactive upon arrival to the lab were also analyzed using the U3O8 assay (reported in weight per cent). 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 samples passed internal QA/QC protocols, and the results presented in this release are deemed complete, reliable and repeatable.

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 these 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.

Natural gamma radiation from rocks reported in this news release was measured in counts per second using a hand-held RS-125 superspectrometer and RS-120 superscintillometer. 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. 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 QA/QC 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 with readings measured by the hand-held scintillometers for QA/QC purposes.

About Aventis Energy Inc.

Aventis Energy is a mineral exploration company dedicated to the development of strategic projects composed of battery, base and precious metals in stable jurisdictions. The company is working to advance its Corvo uranium and Sting copper project.

The Corvo uranium property has historical drill holes that intersected multiple intervals of uranium mineralization, notably along a strike length of 800 metres between historical drill holes TL-79-3 (0.116 per cent U3O8 over 1.05 m) and TL-79-5 (0.065 per cent U3O8 over 0.15 m). High-grade uranium at surface with the Manhattan showing (1.19 to 5.98 per cent U3O8) and SMDI showing 2052 (0.137 per cent U3O8 and 2,300 parts per million thorium). The Sting copper project covers approximately 12,700 hectares and recently had results of 54.8 m at 0.32 per cent copper starting at a depth of 27.0 m, with higher-grade intervals including six samples (greater-than-or-equal-to-0.5-metre length) ranging from 0.96 per cent to 5.43 per cent Cu. High-grade samples include 0.5 m at 2.85 per cent Cu and 0.5 m at 1.92 per cent Cu with an additional broader interval of 31.1m at 0.27 per cent Cu.

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