Mr. Michael Mulberry reports

AVENTIS ENERGY SET TO DRILL THE CORVO PROJECT INCLUDING THE HIGH-GRADE MANHATTAN URANIUM SHOWING WITH 8.10% U3O8 SURFACE SAMPLE

Aventis Energy Inc. is mobilizing for the maiden diamond drilling campaign at the company's Corvo uranium project, located in the eastern Athabasca basin region. The winter 2026 program will focus on the Manhattan showing, an area characterized by significant surface mineralization with outcrop samples grab samples returning up to 8.10 per cent U3O8 (triuranium octoxide) along a northeast-southwest-trending electromagnetic (EM) corridor coincident with low gravity anomalies.

2026 Corvo highlights

• Mobilization and site access initiated: Base diamond drilling personnel have commenced road construction to establish project access. The drilling crew is currently finalizing preparations and is scheduled to be en route to the site by the end of this week.
• High-priority shallow drill targets identified: The program will be comprised of approximately 3,000 metres of skid-supported diamond drilling, partitioned across eight to 10 drill holes. Operations will focus on high-priority uranium targets, which were rigorously refined through integration and interpretation of the company's 2025 high-resolution geophysical surveys and historical data.
• Drilling to test high-grade Manhattan showing: For the first time, the company will drill test the Manhattan showing, which returned a maximum surface sample grade of 8.10 per cent U3O8. This priority target is characterized by a confluence of mineralization, EM conductors and newly defined density anomalies -- classic signatures of Athabasca-style uranium mineralization. Additionally, the upcoming program is designed to explore the untapped potential of the northwestern EM corridor, which extends along strike from the showing for several kilometres.

Michael Mulberry, chief executive officer of the company, commented: "We are very excited to announce the start of our 2026 drilling program, which will focus on testing the high-grade Manhattan showing at depth and a number of high-priority shallow targets identified from our recent exploration programs. Alongside Standard Uranium, we are eager to reach this milestone and we look forward to sharing our findings."

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 and 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 (SRC) 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 wt. 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's quality assurance/quality control (QA/QC) 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 (cps) 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. The RS-125 and RS-120 units supplied by Radiation Solutions Inc. (RSI) have been calibrated on specially designed test pads by RSI. Standard maintains an internal QA/QC (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 QA/QC purposes.

About Aventis Energy Inc.

Aventis Energy is a mineral exploration company dedicated to the development of strategic projects comprised 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 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 Cu starting at a depth of 27.0 m, with higher-grade intervals including six samples (greater than or equal to 0.5 m length) ranging from 0.96 per cent to 5.43 per cent Cu. High-grade samples of 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 31.1 m at 0.27 per cent Cu.

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