Collective Metals Starts Drilling at Rocas Uranium Project

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Collective Metals Starts Drilling at Rocas Uranium Project
UraniumDrillingAthabasca Basin
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Collective Metals has commenced its inaugural drill program at the Rocas Uranium Project in the Southeast Athabasca Basin on March 16th, 2026. The Phase I program, lasting approximately five weeks, will involve 1,200-1,500 meters of diamond drilling across 6-8 holes, targeting shallow, high-grade uranium mineralization identified through geophysical surveys and surface analysis. The project is located 75 kilometers southwest of the Key Lake Mine.

Collective Metals Initiates Inaugural Drill Program at the Rocas Uranium Project in Southeast Athabasca Basin : Drilling activities began on March 16th, 2026. Drill holes have been designed to target shallow high-grade* basement-hosted uranium mineralization across multiple high-priority target areas.

The Program is anticipated to span approximately five weeks.: The Phase I program will be comprised of approximately 1,200 to 1,500 metres of diamond drilling across six to eight drill holes. Targets are located at shallow depths less than two hundred metres below surface.One diamond drill will focus on high-priority target areas along prospective VTEM corridors overlain by high-resolution ground gravity data with the proven exploration thesis of focusing on major conductor trends associated with cross-cutting faults and surficial radioactivity expressions.”) located 75 kilometers southwest of the Key Lake Mine and Mill facilities along Highway 914 . Field crews have arrived at the Project and drilling has commenced on schedule.With multiple high-priority targets defined through geophysics, surface mineralization, and recent prospecting, we believe Rocas has the potential to host shallow, high-grade uranium mineralization. We look forward to testing these targets and advancing the Project in one of the world’s premier uranium districts.” Figure 1. Regional map of the Rocas Project. The Project is located 75 kilometres southwest of the Key Lake Mine and Mill facilities along Highway 914.”) team arrived on site on March 16th and diamond drilling on the first hole in history at Rocas is currently underway. The winter/spring program will be comprised of approximately 1,200 to 1,500 metres of drilling at high-priority target areas following completion of a ground gravity survey and multifaceted geophysical modeling last year . Rocas covers an area of 4,002 hectares across three mineral claims, located along highway 914 south of the Key Lake Mine and Mill facilities in the southeastern Athabasca Basin region. The Company believes the Project is highly prospective for the discovery of shallow, high-grade* basement-hosted uranium mineralization. Positioned proximal to the margin of the Athabasca Basin, Rocas boasts shallow drill targets with bedrock under minimal glacial till cover. Historical mineralized outcrop grab samples along approximately 900 metres of strike length, returned values ranging from 587 ppm U up to 0.498 wt.% UTargets were selected and prioritized through an iterative approach working in collaboration with Convolutions Geoscience Corporation. Prospecting and mapping across the Project in fall 2025 outlined multiple outcrops of favourable uranium and REE host-rocks, including radioactive metasediments, pegmatites, and structured orthogneiss. Structural measurements, assay results, and radioactivity mapping has further refined drill targets in the 2026 target areas. Targets are ranked and prioritized based on geophysical signature, geological/structural setting, proximity to surficial uranium occurrences of interest, historical lakebed geochemistry, and Standard’s recent prospecting and mapping campaign on behalf of the Company.The scientific and technical information contained in this news release has been reviewed, verified, and approved by Sean Hillacre, P.Geo., President and VP Exploration of Standard and a “qualified person” as defined in NI 43-101 –”) in Saskatoon, Saskatchewan for preparation, processing, and ICP-MS or ICP-OES multi-element analysis using total and partial digestion and boron by fusion. Radioactive samples were tested using the ICP-MS2 uranium multi-element exploration package plus boron. Samples chosen for REE analysis were tested using the REE2 package by ICP-MS. All samples marked as radioactive upon arrival to the lab were also analyzed using the Uassay . 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 release are deemed complete, reliable, and repeatable.were verified using the following formulas:Convert REE ppm to REO : REO %= * . 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. 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 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. have been calibrated on specially designed Test Pads by RSI. Standard 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 to readings measured by the handheld scintillometers for QA/QC purposes.**The Company considers radioactivity readings greater than 65,535 counts per second on a handheld RS-125 Super-Spectrometer to be “off-scale”.Standard Uranium Confirms Anomalous Uranium and High-Grade Rare Earth Element Mineralization up to 9.83% TREO* at Surface on the Rocas Project.The Company considers radioactivity readings greater than 65,535 counts per second on a handheld RS-125 Super-Spectrometer to be “off-scale”.) is a resource exploration company specializing in critical and precious metals exploration in North America. The Company’s Rocas project comprises 4,002 hectares, located 75 kilometers southwest of the Key Lake Mine and Mill facilities along Highway 914, and approximately 72 kilometers south of the present-day margin of the Athabasca Basin. The Project hosts several uranium showings, including This news release includes certain “Forward-Looking Statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and “forward-looking information” under applicable Canadian securities laws. When used in this news release, the words “anticipate”, “believe”, “estimate”, expect”, “target”, “plan”, “forecast”, “may”, “would”, “could”, “schedule” and similar words or expressions, identify forward-looking statements or information. Forward-looking statements and forward-looking information relating to any future mineral production, liquidity, enhanced value and capital markets profile of Collective, future growth potential for Collective and its business, and future exploration plans are based on management’s reasonable assumptions, estimates, expectations, analyses and opinions, which are based on management’s experience and perception of trends, current conditions and expected developments, and other factors that management believes are relevant and reasonable in the circumstances, but which may prove to be incorrect. Assumptions have been made regarding, among other things, the price of lithium and other metals; costs of exploration and development; the estimated costs of development of exploration projects; Collective’s ability to operate in a safe and effective manner and its ability to obtain financing on reasonable terms. This news release contains “forward-looking information” within the meaning of the Canadian securities laws. Statements, other than statements of historical fact, may constitute forward looking information and include, without limitation, statements with respect to the Project and its mineralization potential; the Company’s objectives, goals, or future plans with respect to the Project; further exploration work on the Project in the future; potential benefits of conducting the Program; the completion of the Program. With respect to the forward-looking information contained in this news release, the Company has made numerous assumptions regarding, among other things, the geological, metallurgical, engineering, financial and economic advice that the Company has received is reliable and are based upon practices and methodologies which are consistent with industry standards. While the Company considers these assumptions to be reasonable, these assumptions are inherently subject to significant uncertainties and contingencies. Additionally, there are known and unknown risk factors which could cause the Company’s actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information contained herein. Known risk factors include, among others: fluctuations in commodity prices and currency exchange rates; uncertainties relating to interpretation of well results and the geology, continuity and grade of lithium and other metal deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and estimated economic return; the need for cooperation of government agencies in the exploration and development of properties and the issuance of required permits; the need to obtain additional financing to develop properties and uncertainty as to the availability and terms of future financing; the possibility of delay in exploration or development programs or in construction projects and uncertainty of meeting anticipated program milestones; uncertainty as to timely availability of permits and other governmental approvals; increased costs and restrictions on operations due to compliance with environmental and other requirements; increased costs affecting the metals industry and increased competition in the metals industry for properties, qualified personnel, and management. All forward-looking information herein is qualified in its entirety by this cautionary statement, and the Company disclaims any obligation to revise or update any such forward-looking information or to publicly announce the result of any revisions to any of the forward-looking information contained herein to reflect future results, events or developments, except as required by law. The Canadian Securities Exchange does not accept responsibility for the adequacy or accuracy of this release. Regional map of the Rocas Project. The Project is located 75 kilometres southwest of the Key Lake Mine and Mill facilities along Highway 914China’s aluminum industry draws raw material diverted by war The upshot of the rerouting of trade flows is that total Chinese imports of alumina could climb to 280,000 tons in April.Rio Tinto gains control of Resolution Copper acreage after years-long court fightRecycling technology developer Nth Cycle inks $1B offtake deal with TrafiguraSouthern Cross drills antimony discovery in Australia

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