# Aldebaran Files PEA on Sedar+ and Announces Termination of the Option Agreement with Nuton Holdings Ltd.

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/aldebaran-files-pea-on-sedar-and-announces-termination-of-the-option-agreement-w--c7964098-b377-4b0d-b8f4-b158797c6640

Original source: https://money.tmx.com/en/quote/ALDE/news/5543077420220930/aldebaran-files-pea-on-sedar-and-announces-termination-of-the-option-agreement-w

Publisher: tmx

Original announcement: 2025-11-24T12:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Aldebaran Resources Inc.

- Ticker: ALDE

- Exchange: TSX

- Region: San Juan Province, Argentina

- Primary commodity: Copper

- Secondary commodities: Gold, Silver

- Document categories: Agreement transaction, Resource update

- Extracted: 2026-09-13 11:19:48 UTC

Narrative sentiment: 0.20 · Bullish

## Minestarters Atlas summary

Aldebaran Resources has filed a Preliminary Economic Assessment \(PEA\) for the Altar copper-gold project in Argentina, reporting an NPV of US$2 billion and an IRR of 20.5%. Simultaneously, the company announced the termination of its option agreement with Nuton Holdings Ltd \(a Rio Tinto venture\), though it retains an 80% interest and continues to partner with Sibanye-Stillwater.

Reasoning: The filing of a high-value PEA for a major porphyry project is highly material, though offset by the loss of a strategic JV partner \(Nuton\).

- Positive factor: Strong PEA economics \(US$2B NPV, 20.5% IRR\)

- Positive factor: Large-scale porphyry copper-gold project

- Positive factor: Advancing towards PFS with Sibanye-Stillwater

- Negative factor: Termination of Nuton \(Rio Tinto venture\) option agreement

Facts used in scoring: 1

## Classification and evidence

**PEA-Supporting**

Polarity: neutral

Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.

Why it applies: The announcement specifically details the filing of a Preliminary Economic Assessment \(PEA\) for the Altar project.

Evidence · text

> filing on SEDAR+ of an updated Technical Report and Preliminary Economic Assessment \(the “Altar PEA”\)

**Resource Update**

Polarity: neutral

Definition: Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: The release references the filing of an updated Technical Report/PEA which builds upon the existing resource base.

Evidence · text

> filing on SEDAR+ of an updated Technical Report and Preliminary Economic Assessment

## Extracted facts

Stored fact records: 0. Some facts used in scoring do not have a stored record.

No stored fact records are available for this extraction.

## How Atlas produces this analysis

Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.