Mr. Sam Leung of Centauri reports

ALDEBARAN RESOURCES AND CENTAURI MINERALS ANNOUNCE COMPLETION OF SPIN-OUT TRANSACTIONS

Aldebaran Resources Inc. and its former subsidiary Centauri Minerals Inc. have completed the previously announced plan of arrangement pursuant to which Aldebaran spun out 18,544,058 common shares of Centauri held by Aldebaran to its shareholders of record as at the close of business on Aug. 26, 2026, 18,544,058 common shares of Centauri held by Aldebaran.

The arrangement was completed pursuant to the Business Corporations Act (Alberta) effective at 12:01 a.m. (Calgary time) on Aug. 27, 2026 (the effective time). In accordance with the arrangement and at the effective time, each Aldebaran shareholder received in exchange for each common share of Aldebaran: (i) one new common share of Aldebaran, and (ii) 0.10 of a Centauri share.

The new Aldebaran shares (Cusip and ISIN numbers 01408J302 and CA01408J3029, respectively) will trade on the TSX Venture Exchange and OTC Markets under the same symbols as the previously existing shares of Aldebaran. Aldebaran shareholders are not required to take any action with respect to the new Aldebaran shares, and direct registration system statements representing the new Aldebaran shares will be forwarded to all Aldebaran shareholders.

As a result of the arrangement, Centauri is now a reporting issuer in British Columbia and Alberta, and the Centauri shares (ISIN: CA15139C1059; Cusip: 15139C105) have been approved for listing and trading on the TSX-V under the symbol CENT effective Aug. 26, 2026. Trading of the Centauri shares is expected to resume on Monday, Aug. 31, 2026. Aldebaran shareholders are not required to take any action with respect to the Centauri shares that were distributed to them, and direct registration system statements representing those Centauri shares will be forwarded to all Aldebaran shareholders of record at the close of business on Aug. 26, 2026

Further information concerning Centauri and the arrangement is available in Aldebaran's information circular dated June 26, 2026, which is filed under Aldebaran's SEDAR+ profile, or in Centauri's TSX-V listing application, which is available on Centauri's SEDAR+ profile.

Subscription receipt conversion

As previously announced, prior to closing the arrangement, Centauri completed a private placement offering of subscription receipts for gross proceeds of $25,486,000. As part of the closing of the arrangement, all of the subscription receipts converted into Centauri shares on a one-to-one basis, resulting in the issuance of 25,486,000 Centauri shares to former holders of subscription receipts. In connection with the subscription receipt conversion, the net proceeds of the private placement were released to Centauri.

Centauri structure

Following closing of the arrangement, there are 76,866,001 Centauri shares issued and outstanding, comprising: 21,455,943 Centauri shares or approximately 27.9 per cent that remain held by Aldebaran, 18,544,058 Centauri shares or approximately 24.1 per cent transferred to Aldebaran shareholders, 25,486,000 Centauri shares or approximately 33.2 per cent issued upon conversion of the subscription receipts and 11.38 million Centauri shares or approximately 14.8 per cent held by investors in the initial financing completed by Centauri in October, 2025. Additionally, 5.01 million Centauri shares are issuable pursuant to outstanding Centauri share purchase options and two million Centauri shares are issuable pursuant to outstanding performance warrants.

Technical report

An independent technical report, prepared in accordance with National Instrument 43-101 -- Standards of Disclosure for Mineral Projects in respect of Centauri's Rio Grande gold-copper project, has been filed on SEDAR+. The technical report was prepared by Benjamin Sanfurgo, FAusIMM of SLR Consulting (Canada) Ltd. for Centauri and Aldebaran, and is entitled "NI 43-101 Technical Report - Rio Grande Project Mineral Resource Estimate, Salta Province, Argentina", with an effective date of April 13, 2026, as amended on June 22, 2026. The Rio Grande technical report is available on Centauri's SEDAR+ profile and on the Centauri's website. The Rio Grande project is Centauri's qualifying property within the meaning of TSX-V policies.

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-per-cent 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 Pachon (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 to 2024 field season (independent technical report prepared by Independent Mining Consultants Inc., Tucson, Ariz., titled "Technical Report, Estimated Mineral Resources, Altar Project, San Juan Province, Argentina," dated Dec. 31, 2024 -- see news release dated Nov. 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, Colo., titled "NI 43-101 Technical Report Preliminary Economic Assessment Altar Project San Juan, Argentina," dated Sept. 30, 2025 -- see news release dated Oct. 30, 2025).

About Centauri Minerals Inc.

Centauri Minerals is a mineral exploration company focused on Northern Argentina, a mining region of increasing global significance. Centauri holds a 100-per-cent-interest in a portfolio of exploration projects spanning approximately 40,000 hectares in the provinces of Salta, Jujuy and Catamarca, which was spun out from Aldebaran Resources Inc. The most advanced is the Rio Grande gold-copper project located in Salta, which has an independent National Instrument 43-101 -- Standards of Disclosure for Mineral Projects-compliant mineral resource estimate that highlights significant gold, copper and silver quantities. Centauri has offices and facilities in Salta, Argentina, and Vancouver, Canada.

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