Mr. John Black reports

ALDEBARAN ANNOUNCES EXECUTION OF ARRANGEMENT AGREEMENT FOR SPIN-OUT OF CENTAURI MINERALS INC.

Aldebaran Resources Inc. has entered into an arrangement agreement dated June 1, 2026, with Centauri Minerals Inc., a majority-owned subsidiary of Aldebaran, pursuant to which the company proposes to spin out approximately 18,535,783 of the common shares it holds in Centauri, on a one-for-10 basis, to the company's shareholders. Centauri holds interests in certain former subsidiaries of Aldebaran, which hold, among other things, the Rio Grande gold-copper project.

It is expected that the proposed spinout will unlock additional value for Aldebaran shareholders through their interests in a new stand-alone company that will actively advance a promising portfolio of exploration projects that have been on hold for the past several years while Aldebaran was advancing its flagship Altar copper-gold project.

The spinout

The spinout will proceed by way of a statutory plan of arrangement in accordance with the provisions of the Business Corporations Act (Alberta), whereby approximately 18,535,783 of the Centauri shares held by Aldebaran will be distributed to the Aldebaran shareholders of record as of the close of business on the business day immediately preceding the date on which the arrangement is completed, or such other date as determined by the company's board of directors. The Centauri shares will be distributed to Aldebaran shareholders on a one-for-10 basis in proportion to their respective holdings of common shares of Aldebaran as of the share distribution record date. There will be no change in Aldebaran shareholders' proportionate ownership in Aldebaran as a result of the arrangement.

Completion of the proposed arrangement requires the approval of the Aldebaran shareholders by special resolution by not fewer than 66-2/3rds per cent of the votes cast by Aldebaran shareholders on such special resolution, the approval of the Court of King's Bench of Alberta and the approval of the TSX Venture Exchange.

The arrangement agreement, court approval and shareholder approval

In accordance with the arrangement agreement, Aldebaran will apply for an interim order from the Court of King's Bench of Alberta, authorizing Aldebaran to call an annual and special meeting of the Aldebaran shareholders to approve the arrangement by special resolution. The meeting is expected to take place on Aug. 7, 2026.

The arrangement involves, among other things, the distribution of Centauri shares to Aldebaran shareholders such that each Aldebaran shareholder will receive for each Aldebaran share held as of the share distribution record date: (i) one new common share of Aldebaran; and (ii) one-10th of one Centauri share.

Immediately following completion of the arrangement, which is expected to occur on or about Aug. 13, 2026, current Centauri shareholders, other than Aldebaran, are expected to own approximately 22.15 per cent of the issued and outstanding Centauri shares; Aldebaran will own approximately 41.78 per cent of the issued and outstanding Centauri shares; and the Aldebaran shareholders will own approximately 36.08 per cent of the issued and outstanding Centauri shares, resulting from the distribution of a portion of the Centauri shares held by Aldebaran to Aldebaran shareholders. These percentages do not take into account the additional financing that Centauri is required to complete as part of the arrangement.

No fractional Centauri shares will be distributed under the arrangement. Any fractions of Centauri shares resulting from the arrangement will be rounded down to the nearest whole number without any compensation in lieu of such fraction.

More detailed information regarding the arrangement and the exchange of Aldebaran shares thereunder, as described above, will be set out in Aldebaran's management information circular that will be mailed to Aldebaran shareholders in connection with the meeting.

The board of directors of Aldebaran has unanimously determined that the transactions contemplated by the arrangement are fair to Aldebaran shareholders and are in the best interests of Aldebaran and the Aldebaran shareholders. Accordingly, the board has unanimously approved the arrangement and unanimously recommends that Aldebaran shareholders vote in favour of the arrangement at the meeting. A description of the various factors considered by the board in arriving at this determination will be provided in the circular.

After the arrangement is completed, it is expected the new Aldebaran shares will continue to be listed for trading on: (i) the TSX Venture Exchange in Canada under the symbol ALDE; and (ii) the OTC market in the United States under the symbol ALDBRF.

Among other things, it is a condition to the completion of the arrangement that the Centauri shares shall have been approved for listing on the TSX-V. Centauri has applied to the TSX-V to have the Centauri shares listed and posted for trading on the TSX-V. Listing is subject to the approval of the TSX-V, and there can be no assurance as to if, or when, the Centauri shares will be listed or traded on the TSX-V.

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, the company 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 2023-2024 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, the company announced a preliminary economic assessment 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 is a new 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 in the provinces of Salta, Catamarca and Jujuy, which was spun out from Aldebaran. The most advanced is the Rio Grande gold-copper project located in Salta, which has an independent National Instrument 43-101-compliant mineral resource estimate that highlights significant copper and gold quantities. Centauri has offices and facilities in Salta, Argentina, and Vancouver, Canada. It is currently a private company, majority owned by Aldebaran, with plans to become a public company in 2026.

We seek Safe Harbor.