M&A / Property
Aldebaran Announces Execution of Arrangement Agreement for Spin-Out of Centauri Minerals Inc.
Aldebaran Advances Altar Development Pathway and Executes Long-Awaited Centauri Spin-Out to Unlock Dual-Jurisdiction Value

Executive Summary
- The most recent development (June 1, 2026) marks the execution of a statutory arrangement agreement to spin out the majority-owned subsidiary, Centauri Minerals Inc., to Aldebaran shareholders on a one-for-ten basis.
- The transaction allocates approximately 18.5 million Centauri shares to Aldebaran shareholders, with Aldebaran retaining a 41.78% stake in Centauri post-distribution.
- The spin-out separates the Rio Grande copper-gold exploration portfolio into an independent entity while Aldebaran concentrates capital and focus exclusively on its flagship Altar project.
- A special shareholder meeting is scheduled for August 7, 2026, with regulatory, court, and TSX Venture Exchange approvals required for completion by mid-August 2026.
- Historically, the company has systematically de-risked Altar through extensive infill drilling (converting inferred resources to measured and indicated categories) and released a highly favorable Preliminary Economic Assessment (PEA) in October 2025 projecting a $2 billion after-tax NPV and 20.5% IRR.
- Financially, the company successfully closed approximately $45.3 million CAD in February 2026 to fully fund the upcoming Pre-Feasibility Study (PFS).
Material Impact
- The spin-out execution is a procedural milestone rather than a disruptive event. The strategic thesis of separating the exploration-stage Rio Grande assets from the advanced Altar project was already priced in following the October 2025 formation announcement and subsequent resource updates.
- The distribution mechanics (1-for-10) and Aldebaran's retained ~41.8% stake provide shareholders with immediate exposure to Centauri's upside in northern Argentina while preserving Aldebaran's concentrated leverage to the Altar copper-gold system.
- The transaction is fully aligned with management's stated capital allocation strategy to unlock value through distinct project lifecycles and does not introduce unexpected risks or rewards.
ALDE · Price
Company Overview
- Company Profile: Aldebaran Resources is a Canadian-based pre-revenue exploration and development company focused on large-scale copper-gold projects in Argentina.
- Flagship Project: The Altar copper-gold project is located in San Juan Province. It features a 48-year mine life design based on a 2025 PEA, targeting 60,000 tonnes per day throughput. The project boasts low cash costs (C1 ~$1.71/lb payable Cu in years 1-20) and robust economics ($2.0B after-tax NPV at 8% discount, 20.5% IRR).
- Development Status: Advanced to infill drilling and geological modeling. The company is actively converting Inferred resources to Measured and Indicated categories to support reserve definition and a 2027 Pre-Feasibility Study.
- Secondary Portfolio: Transferred to Centauri Minerals Inc., focusing on the Rio Grande project (1.45 Moz Au, 384 kt Cu Indicated) and other northern Argentine greenfield targets.
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Jul 06, 2026 · 06:14