Centauri Minerals gets final TSX Venture listing approval

Aldebaran Resources and Centauri Minerals Announce Final Approval of Centauri’s Listing on the TSX Venture Exchange

VANCOUVER, British Columbia, Aug. 25, 2026 (GLOBE NEWSWIRE) -- Aldebaran Resources Inc. (TSX-V: ALDE, OTCQX: ADBRF ) (“ Aldebaran ”) and its subsidiary Centauri Minerals Inc. ( TSX-V: CENT ) (“ Centauri ” and together with Aldebaran, the “ Companies ”) are pleased to announce that Centauri has filed its TSX Venture Exchange (“ TSX-V ”) Form 2B Listing Application (the “ Listing Application ”) and supporting documents on its SEDAR+ profile at www.sedarplus.ca . The Companies are also pleased to announce that Centauri has received final approval from the TSX-V to list its common shares (the “ Centauri Shares ”) under the symbol “ CENT ”.

Anticipated Closing and Listing Mechanics

Pursuant to the TSX-V’s final approval, the Centauri Shares will be listed and immediately halted on August 26, 2026, pending closing of the previously announced plan of arrangement (the “ Arrangement ”). It is anticipated that the Arrangement will close on August 27, 2026, pursuant to which all holders of Aldebaran’s common shares (“ Aldebaran Shares ”) of record as of the close of business on August 26, 2026, will receive in exchange for each Aldebaran Share: (i) one new common share of Aldebaran (a “ New Aldebaran Share ”); and (ii) 0.10 of a Centauri Share. Aldebaran Shareholders are not required to take any action to receive their New Aldebaran Shares or Centauri Shares.

Following closing of the Arrangement, it is anticipated that the Centauri halt will be lifted and trading of the Centauri Shares on the facilities of the TSX-V will commence on August 31, 2026.

The Companies will provide further details concerning the closing of the Arrangement in a subsequent press release. For further details about Centauri and the Arrangement, please refer to the Listing Application.

For further information or to subscribe to the Centauri news list, please contact:

Sam Leung CEO and Director, Centauri Minerals Inc. Phone: +1 416 206 4187 Email: sam.leung@centauriminerals.com Website: centauriminerals.com

Ben Cherrington Manager, Investor Relations, Aldebaran Resources Inc. Phone: +44 7538 244 208 Email: ben.cherrington@aldebaranresources.com Website: aldebaranresources.com

About 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 Aldebaran announced an updated mineral resource estimate for the Altar project, 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 Aldebaran 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).