# Golden Arrow Files Technical Report for San Pietro Copper-Gold-Iron-Cobalt Project, Chile

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c

Original source: https://money.tmx.com/en/quote/GRG/news/5470008111576612/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje

Publisher: tmx

Original announcement: 2025-04-03T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Golden Arrow Resources Corporation

- Ticker: GRG

- Exchange: TSX

- Region: Atacama Region, Chile

- Primary commodity: Copper

- Secondary commodities: Gold, Cobalt, Iron ore

- Document categories: Resource update

- Extracted: 2026-08-23 15:06:26 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

Golden Arrow Resources has announced its first mineral resource estimate for the San Pietro Copper-Gold-Iron-Cobalt Project in Chile. The maiden Inferred resource totals 492 Mt at 0.41% CuEq, containing significant quantities of copper, gold, cobalt, and iron.

Reasoning: The company has filed its first mineral resource estimate \(maiden\) for the San Pietro project, totaling 492 Mt at 0.41% CuEq. While the scale is significant, the entire resource is currently in the Inferred category, representing high geological risk.

- Positive factor: Maiden resource estimate

- Positive factor: Significant contained metal scale

- Positive factor: IOCG deposit type

- Positive factor: NI 43-101 compliant

- Negative factor: 100% Inferred category

- Negative factor: Low geological confidence

Facts used in scoring: 12

## Classification and evidence

**Maiden Resource**

Polarity: neutral

Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: The announcement states this is the 'first mineral resource estimate' for the project.

Evidence · text

> supporting disclosure of the first mineral resource estimate \("MRE"\)

**Inferred Resource**

Polarity: negative

Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.

Why it applies: The entire resource is classified as Inferred.

Evidence · text

> Table 1. Inferred Mineral Resource Estimate

**All Inferred**

Polarity: negative

Definition: 100% of resource is Inferred category — very early stage, no engineering confidence.

Why it applies: 100% of the reported resource is in the Inferred category.

Evidence · text

> The block model was classed into Inferred Mineral Resources

**QP/CP Signed**

Polarity: positive

Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience.

Why it applies: Qualified Persons Susan Lomas and Dr. Bruce Davis are named.

Evidence · text

> Qualified Persons: Susan Lomas , P.Geo. &amp; Dr. Bruce Davis , PhD, FAusIMM

**Cut-off Disclosed**

Polarity: positive

Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.

Why it applies: The cut-off grade of 0.30% CuEq is explicitly stated.

Evidence · text

> Reported within US$4.80 /lb Cu Pitshell at 0.30% CuEq Cut-off

## Extracted facts

Stored fact records: 12. Some facts used in scoring do not have a stored record.

## Resource Estimates (12)

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-0)

copper

#### Identity

- Commodity: copper
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 83000000
- Grade: 0.23
- Grade Unit: %
- Contained Metal: 415000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Oxide copper component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 0.23

Context: 83

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-1)

gold

#### Identity

- Commodity: gold
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 83000000
- Grade: 0.06
- Grade Unit: g/t
- Contained Metal: 150000
- Contained Unit: koz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Oxide gold component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 0.06

Context: 83

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-2)

cobalt

#### Identity

- Commodity: cobalt
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 83000000
- Grade: 96
- Grade Unit: ppm
- Contained Metal: 17000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Oxide cobalt component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 96

Context: 83

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-3)

iron\_ore

#### Identity

- Commodity: iron\_ore
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 83000000
- Grade: 14.8
- Grade Unit: %
- Contained Metal: 27000000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Oxide iron component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 14.80

Context: 83

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-4)

copper

#### Identity

- Commodity: copper
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 410000000
- Grade: 0.23
- Grade Unit: %
- Contained Metal: 2055000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Sulphide copper component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 0.23

Context: 410

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-5)

gold

#### Identity

- Commodity: gold
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 410000000
- Grade: 0.05
- Grade Unit: g/t
- Contained Metal: 620000
- Contained Unit: koz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Sulphide gold component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 0.05

Context: 410

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-6)

cobalt

#### Identity

- Commodity: cobalt
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 410000000
- Grade: 99
- Grade Unit: ppm
- Contained Metal: 90000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Sulphide cobalt component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 99

Context: 410

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-7)

iron\_ore

#### Identity

- Commodity: iron\_ore
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 410000000
- Grade: 14.35
- Grade Unit: %
- Contained Metal: 130000000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Sulphide iron component of the maiden resource.

- Negative factor: Inferred category

Evidence · table

> 14.35

Context: 410

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-8)

copper

#### Identity

- Commodity: copper
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 492000000
- Grade: 0.23
- Grade Unit: %
- Contained Metal: 2470000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Total project copper resource \(All\).

- Negative factor: Inferred category

Evidence · table

> 0.23

Context: 492

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-9)

gold

#### Identity

- Commodity: gold
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 492000000
- Grade: 0.05
- Grade Unit: g/t
- Contained Metal: 770000
- Contained Unit: koz

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Total project gold resource \(All\).

- Negative factor: Inferred category

Evidence · table

> 0.05

Context: 492

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-10)

cobalt

#### Identity

- Commodity: cobalt
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 492000000
- Grade: 99
- Grade Unit: ppm
- Contained Metal: 107000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Total project cobalt resource \(All\).

- Negative factor: Inferred category

Evidence · table

> 99

Context: 492

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/golden-arrow-files-technical-report-for-san-pietro-copper-gold-iron-cobalt-proje--e7208ae4-02f7-4272-8874-6b7b4ea10e4c#fact-resource-facts-11)

iron\_ore

#### Identity

- Commodity: iron\_ore
- Ticker: GRG

#### Resource Data

- Category: inferred
- Tonnes: 492000000
- Grade: 14.43
- Grade Unit: %
- Contained Metal: 157000000000
- Contained Unit: lb

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-04-03T00:00:00.000Z

Reasoning: Total project iron resource \(All\).

- Negative factor: Inferred category

Evidence · table

> 14.43

Context: 492

## 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.
