Aldebaran Reports 1,728.9 m of 0.45% CuEq (0.41% Cu, 0.03 g/t Au & 1.34 g/t Ag), including 756 m of 0.68% CuEq (0.61% Cu, 0.03 g/t Au & 2.12 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina

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Postmedia has not reviewed the content. by GlobeNewswire Aldebaran Reports 1,728.9 m of 0.45% CuEq (0.41% Cu, 0.03 g/t Au & 1.34 g/t Ag), including 756 m of 0.68% CuEq (0.61% Cu, 0.03 g/t Au & 2.12 g/t Ag) at the Altar Copper-Gold Project in San Juan, ArgentinaAuthor of the article:Location Map of Drill Holes Completed in the 2025/2026 Field Season GNWAlso reports 918.8 m of 0.62% CuEq1, including 302 m of 0.76% CuEq1and901 m of 0.47% CuEq1, including 196 m of 0.73% CuEq1and940.7 m of 0.49% CuEq1, including 165 m of 0.80% CuEq1and841.9 m of 0.54% CuEq1, including 253 m of 0.73% CuEq1THIS CONTENT IS RESERVED FOR SUBSCRIBERS ONLYSubscribe now to read the latest news in your city and across Canada.Exclusive articles from Barbara Shecter, Joe O'Connor, Gabriel Friedman, and others.Daily content from Financial Times, the world's leading global business publication.Unlimited online access to read articles from Financial Post, National Post and 15 news sites across Canada with one account.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles, including the New York Times Crossword.SUBSCRIBE TO UNLOCK MORE ARTICLESSubscribe now to read the latest news in your city and across Canada.Exclusive articles from Barbara Shecter, Joe O'Connor, Gabriel Friedman and others.Daily content from Financial Times, the world's leading global business publication.Unlimited online access to read articles from Financial Post, National Post and 15 news sites across Canada with one account.National Post ePaper, an electronic replica of the print edition to view on any device, share and comment on.Daily puzzles, including the New York Times Crossword.REGISTER / SIGN IN TO UNLOCK MORE ARTICLESCreate an account or sign in to continue with your reading experience.Access articles from across Canada with one account.Share your thoughts and join the conversation in the comments.Enjoy additional articles per month.Get email updates from your favourite authors.THIS ARTICLE IS FREE TO READ REGISTER TO UNLOCK.Create an account or sign in to continue with your reading experience.Access articles from across Canada with one accountShare your thoughts and join the conversation in the commentsEnjoy additional articles per monthGet email updates from your favourite authorsSign In or Create an AccountVANCOUVER, British Columbia, Oct. 05, 2026 (GLOBE NEWSWIRE) — Aldebaran Resources Inc. (“Aldebaran” or the “Company”) (TSX-V: ALDE, OTCQX: ADBRF) is pleased to provide results from all remaining holes of the 2025-2026 infill and geotechnical drilling program at the Altar project in San Juan, Argentina. The drilling program was designed to upgrade Inferred resources to the higher-confidence Measured and Indicated categories while also supporting geotechnical studies. Several of the holes reported today were drilled exclusively for geotechnical purposes in final pit wall areas where significant mineralization was not expected.This advertisement has not loaded yet, but your article continues below.Get the latest headlines, breaking news and columns.By signing up you consent to receive the above newsletter from Postmedia Network Inc.A welcome email is on its way. If you don't see it, please check your junk folder.The next issue of Top Stories will soon be in your inbox.We encountered an issue signing you up. Please try again1,728.90 m of 0.45% CuEq1 from 141.00 m depth Including 1,427.90 of 0.52% CuEq1 from 442.00 m depth Including 756.00 m of 0.68% CuEq1 from 965.00 m depth Including 88.00 m of 0.84% CuEq1 from 1,211.00 m depth918.80 m of 0.62% CuEq1 from 59.00 m depth Including 87.00 m of 0.88% CuEq1 from 59.00 m depthAnd 302.00 m of 0.76% CuEq1 from 422.00 m depth Including 212.00 m of 0.83% CuEq1 from 490.00 m depth901.00 m of 0.47% CuEq1 from 249 m depth Including 781.00 m of 0.52% CuEq1 from 296.00 m depth Including 196.00 m of 0.73% CuEq1 from 516.00 m depth940.70 m of 0.49% CuEq1 from 63.00 m depth Including 165.00 m of 0.80% CuEq1 from 533.00 m depthAnd 227.00 m of 0.60% CuEq1 from 771.00 m depth841.90 m of 0.54% CuEq1 from 193.00 m depth Including 253.00 m of 0.73% CuEq1 from 722.00 m depth1For individual assays for all metals, see Table 1John Black, Chief Executive Officer of Aldebaran, commented: “A mineralized interval exceeding 1.7 kilometres in a single drill hole underscores the immense scale of the Altar system. As we move toward our updated mineral resource estimate, we will be incorporating more than 40,000 m of drilling completed at the main Altar deposit since the last resource estimate in late 2024, as well as approximately 30,000 m of drilling completed at the adjacent Radio Porphyry target. Radio Porphyry has never been included in a mineral resource estimate, making this an important milestone for the project. We believe the 2026 resource update will better demonstrate the scale and growth potential of the broader Altar Project and position us well for the Pre-Feasibility Study scheduled for completion in 2027.”This advertisement has not loaded yet, but your article continues below.Kevin B. Heather, Chief Geological Officer of Aldebaran, commented: “With the release of this final batch of drill hole results, the Altar project continues to amaze us with long continuous intervals of copper mineralization. The 2025-2026 drilling campaign results have exceeded our expectations, and while we were waiting on these final results to arrive, we have been busy refining and improving our geological and geotechnical models based on this recent drilling. Collectively this bodes well for the upcoming mineral resource estimate and the pre-feasibility study.”Table 1 below shows detailed assays for all thirteen holes. Figure 1 displays a plan map of the completed drill hole locations, while Figures 2 to 11 display cross sections of the holes reported herein.Table 1 – Altar Drill Hole Results From(m)To(m)Interval(m)Cu(%)Au(g/t)Ag(g/t)Mo(ppm)As(ppm)CuEq(%)ALD-26-260- Total Depth – 1,869.9 mInterval141.001,869.901,728.900.410.031.34123810.45Incl.442.001,869.901,427.900.470.031.49143870.52Incl.965.001,721.00756.000.610.032.12197760.68Incl.1,211.001,299.0088.000.760.051.87232690.84ALD-26-265 – Total Depth – 1,150.00 mInterval249.001,150.00901.000.410.151.21151830.47Incl.296.001,077.00781.000.450.171.29151960.52Incl.516.00712.00196.000.610.301.64121710.73Incl.619.00677.0058.000.720.422.0682180.87And740.00824.0084.000.520.181.5163820.59And866.00945.2079.200.600.171.58193270.67ALD-26-266 – Total Depth -977.80 mInterval59.00977.80918.800.580.091.58142750.62Incl.59.00146.0087.000.820.131.94134460.88Incl.61.00126.0065.000.900.152.18135910.96And422.00724.00302.000.700.141.1111510.76Incl.490.00702.00212.000.770.161.208590.83ALD-26-268 – Total Depth – 550.00 mInterval36.00231.00195.000.240.041.23253620.26ALD-26-269 – Total Depth -1,003.70 mInterval63.001,003.70940.700.420.161.37222120.49Incl.533.00698.00165.000.680.311.85132600.80Incl.771.00998.00227.000.530.162.33133830.60ALD-26-270 – Total Depth – 525.00 mNo Reportable IntervalsALD-26-271 – Total Depth – 1,034.90 mInterval193.001,034.90841.900.500.081.02311160.54Incl.722.00975.00253.000.690.070.9131400.73Incl.732.00781.0049.000.770.141.20131060.83ALD-26-272 – Total Depth – 350.00 mNo Reportable IntervalsALD-26-273 – Total Depth – 435.00 mNo Reportable IntervalsALD-26-274 – Total Depth – 521.00 mInterval114.00169.0055.000.180.030.6152910.19ALD-26-275 – Total Depth – 360.00 mNo Reportable IntervalsALD-26-276 – Total Depth – 416.20 mInterval321.00416.2095.200.130.330.64225670.25ALD-26-277 – Total Depth – 230.00 mInterval118.00230.00112.000.130.071.48114590.17The grades are uncut. CuEq values were calculated using copper, gold, silver, and molybdenum. Metal prices utilized for the calculations are Cu = US$3.00/lb, Au = US$1,400/oz, Ag = US$18/oz, and Mo = US$10/lb. Recoveries used for the supporting metals found in the CuEq equation are as follows: Au = 50%, Ag = 51%, (based on historical metallurgical test work) and Mo = 70% (benchmarking from similar deposits). The formula utilized to calculate equivalent values is CuEq % = Cu % + (Au g/t * 0.34025) + (Ag g/t * 0.00446) + (Mo ppm * 0.00023). Intervals represent true thickness of the deposit.This advertisement has not loaded yet.This advertisement has not loaded yet, but your article continues below.The scientific and technical data contained in this news release has been reviewed and approved by Dr. Kevin B. Heather, B.Sc. (Hons), M.Sc, Ph.D, FAusIMM, FGS, Chief Geological Officer and director of Aldebaran, who serves as the qualified person (QP) under the definitions of National Instrument 43-101.ON BEHALF OF THE ALDEBARAN BOARD John Black, Chief Executive Officer and DirectorTel: +1 (604) 685-6800Email: info@aldebaranresources.comPlease click here and subscribe to receive future news releases: https://aldebaranresources.com/contact/subscribe/For further information, please consult our website at www.aldebaranresources.com or contact:Ben CherringtonManager, Investor RelationsPhone: +44 7538 244 208Email: ben.cherrington@aldebaranresources.comAbout Aldebaran Resources Inc. Aldebaran is a mineral exploration company that was spun out of Regulus Resources Inc. in 2018 and has the same core management team. Aldebaran holds an 80% interest in the Altar copper-gold project in San Juan Province, Argentina. The Altar project hosts multiple porphyry copper-gold deposits with potential for additional discoveries. Altar forms part of a cluster of world-class porphyry copper deposits which includes Los Pelambres (Antofagasta Minerals), El Pachón (Glencore), and Los Azules (McEwen Copper). In November 2024, the Company announced an updated mineral resource estimate for Altar, prepared by Independent Mining Consultants Inc. and based on the drilling completed up to and including the 2023-24 field season (independent technical report prepared by Independent Mining Consultants Inc., Tucson, Arizona, titled “Technical Report, Estimated Mineral Resources, Altar Project, San Juan Province, Argentina“, dated December 31, 2024 – see news release dated November 25, 2024). In October 2025 the Company announced a Preliminary Economic Assessment (PEA) for the Altar Project (independent technical report prepared by SRK Consulting Inc, Denver, Colorado, titled “NI 43-101 Technical Report Preliminary Economic Assessment Altar Project San Juan, Argentina”, dated September 30, 2025 – see news release dated October 30, 2025).This advertisement has not loaded yet, but your article continues below.Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.Sampling and Analytical ProceduresAltar follows systematic and rigorous sampling and analytical protocols which meet and exceed industry standards. These protocols are summarized below and are available on the Aldebaran website at www.aldebaranresources.com.All drill holes are diamond core holes with PQ, HQ or NQ core diameters. Drill core is collected at the drill site where recovery and RQD (Rock Quality Designation) measurements are taken before the core is boxed and transported to the Altar camp facilities, a short distance away, where the whole core is photographed under more optimum lighting conditions and geological quick log is produced. The whole-core is then marked and sampled into geological defined, systematic 1- to 2-metre sample intervals, unless the geologist determines the presence of an important geological contact, which should not be crossed. The whole-core is then cut-in-half with a diamond saw blade, with half the sample retained in the core box for future reference and the other half placed into a pre-labelled plastic bag, sealed with a two plastic security zip ties, and labeled with a unique sample number. The bagged samples are then placed into larger plastic sacks, and those sacks are sealed with another plastic security zip tie and labelled for shipment. The sacks are then placed onto wooden pallets and wrapped in plastic shrink-wrap and stored in a secure area pending shipment to a certified ALS laboratory sample preparation facility located in Mendoza, Argentina, where the samples are dried, crushed, and pulverized. The resulting sample pulps are sent by batch to the ALS laboratory in Lima for geochemical assay analysis, including a 30g fire assay with an atomic absorption (AA) finish analysis for gold and a full multi-acid digestion (4-acid) with ICP-AES analysis for other elements. Samples with results that exceed maximum detection values for gold are re-analyzed by fire assay with a gravimetric finish and other elements of interest are re-analyzed using precise ore-grade ICP analytical techniques. Aldebaran independently inserts certified control standards (Super Certified Reference Materials (SCRM’s), coarse field blanks, and duplicates into the sample stream to monitor data quality. These control samples represent 10-12% of the total samples submitted and are inserted “blindly” to the laboratory in the sample sequence prior to departure from the Aldebaran facilities. This advertisement has not loaded yet, but your article continues below.Forward-Looking StatementsCertain statements regarding Aldebaran, including management’s assessment of future-plans and operations, may constitute forward-looking statements under applicable securities laws and necessarily involve known and unknown risks and uncertainties, most of which are beyond Aldebaran’s control. Often, but not always, forward-looking statements or information can be identified by the use of words such as “plans”, “expects” or “does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate” or “believes” or variations of such words and phrases or statements that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved.Specifically, and without limitation, all statements included in this press release that address activities, events or developments that Aldebaran expects or anticipates will or may occur in the future, including the proposed exploration and development of the Altar project described herein, and management’s assessment of future plans and operations and statements with respect to the completion of the anticipated exploration and development programs, the mineral resource estimate and pre-feasibility study, may constitute forward-looking statements under applicable securities laws and necessarily involve known and unknown risks and uncertainties, most of which are beyond Aldebaran’s control. These risks may cause actual financial and operating results, performance, levels of activity and achievements to differ materially from those expressed in, or implied by, such forward-looking statements. Although Aldebaran believes that the expectations represented in such forward-looking statements are reasonable, there can be no assurance that such expectations will prove to be correct. The forward-looking statements contained in this press release are made as of the date hereof and Aldebaran does not undertake any obligation to publicly update or revise any forward-looking statements or information, whether as a result of new information, future events or otherwise, unless so required by applicable securities law.This advertisement has not loaded yet.This advertisement has not loaded yet, but your article continues below.Photos accompanying this announcement are available at:This advertisement has not loaded yet.Notice for the Postmedia NetworkThis website uses cookies to personalize your content (including ads), and allows us to analyze our traffic. Read more about cookies here. By continuing to use our site, you agree to our Terms of Use and Privacy Policy.