Drill Results
Aldebaran Reports 1,339.30 m of 0.45% CuEq (0.38% Cu, 0.14 g/t Au & 2.54 g/t Ag) including 500 m of 0.71% CuEq (0.58% Cu, 0.35 g/t Au & 1.42 g/t Ag) at the Altar Copper-Gold Project in San Juan, Argentina
Aldebaran Resources Inc.

Executive Summary
- Aldebaran Resources released drilling results from seven holes at the Altar Copper-Gold Project in San Juan, Argentina on May 21, 2026.
- The program is an infill drill initiative designed to upgrade mineral resources from Inferred to Measured & Indicated categories.
- Key intercept includes 1,339.30 m of 0.45% CuEq (including 500 m of 0.71% CuEq).
- The company anticipates releasing an updated mineral resource estimate in Q3 2026 and aims to complete a Pre-Feasibility Study (PFS) in Q2/Q3 2027.
- Over 40,000 m of drilling has been completed since the 2024 resource estimate.
- Management confirms continuity of mineralization and grade consistency, which is critical for PFS de-risking.
Material Impact
- The news validates the ongoing infill drilling program announced in previous releases (Feb-April 2026) aimed at supporting the Q3 2026 resource update.
- While grades are robust, this is expected progress rather than a new discovery or economic breakthrough; the PEA ($2B NPV) was already released in late 2025.
- The market has previously reacted negatively to dilution concerns following the $45M financing closed at $3.25/share in February 2026, as evidenced by the price drop from ~$4.18 (Jan 2026) to current levels (~$2.78).
- The news does not materially alter the investment thesis but confirms execution of the path to PFS.
- Given the recent downtrend and trading below the offering price, positive technical momentum is required for this news to translate into a sustained price increase.
ALDE · Price
Company Overview
- Company: Aldebaran Resources Inc. (TSX.V: ALDE, OTCQX: ADBRF).
- Flagship Project: Altar Copper-Gold Project in San Juan Province, Argentina.
- Project Status: Development stage; Preliminary Economic Assessment (PEA) completed with $2B NPV (8%). Moving toward Pre-Feasibility Study (PFS).
- Mine Type: Open-pit concentrator (future transition to block-cave underground).
- Production Guidance: 60,000 tpd throughput; LOM CuEq production ~101 kt/year.
- Cost Profile: C1 cash costs estimated at $1.71/lb payable Cu in first 20 years.
- Resource Base: Updated 2024 MRE shows 2.40 Mt Measured & Indicated (approx. 66% of total resource).
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Jul 06, 2026 · 06:14