# ATEX Reports Updated Mineral Resource Estimate of 475 Million Tonnes of 0.88% CuEq Indicated and 1.5 Billion Tonnes of 0.75% CuEq Inferred

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--f575e725-8933-4f37-9fae-0ef6421a57f8

Original source: https://finance.yahoo.com/news/atex-reports-updated-mineral-estimate-110000759.html

Publisher: yahoo\_press

Original announcement: 2025-09-23T11:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: ATEX Resources Inc.

- Ticker: ATX

- Exchange: TSXV

- Region: Atacama Region, Chile

- Primary commodity: Copper

- Secondary commodities: None reported

- Document categories: Resource update

- Extracted: 2026-08-21 06:50:09 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

ATEX Resources has announced an updated Mineral Resource Estimate for the Valeriano Project in Chile. The estimate includes 475 million tonnes of Indicated resource at 0.88% CuEq and a substantial 1.5 billion tonnes of Inferred resource at 0.75% CuEq.

Reasoning: The update reports a massive resource scale \(nearly 2 billion tonnes total\) with significant copper equivalent grades.

- Positive factor: Significant tonnage scale

- Positive factor: NI 43-101 compliant

- Positive factor: Large inferred component provides massive upside

Facts used in scoring: 2

## Classification and evidence

**NI 43-101 Compliant**

Polarity: positive

Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard.

Why it applies: The MRE was prepared in accordance with National Instrument 43-101 Standards of Disclosure.

Evidence · text

> prepared in accordance with... National Instrument 43-101 Standards of Disclosure

**Inferred Resource**

Polarity: negative

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

Why it applies: A large portion of the resource \(1.5 billion tonnes\) is classified as Inferred.

Evidence · text

> 1.5 Billion Tonnes of 0.75% CuEq Inferred

## Extracted facts

Stored fact records: 2. Some facts used in scoring do not have a stored record.

## Resource Estimates (2)

### indicated

[Link to this fact](https://atlas-staging.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--f575e725-8933-4f37-9fae-0ef6421a57f8#fact-resource-facts-0)

copper

#### Identity

- Commodity: copper
- Ticker: ATX

#### Resource Data

- Category: indicated
- Tonnes: 475000000
- Grade: 0.88
- Grade Unit: % CuEq

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-09-23T00:00:00.000Z

Reasoning: 0.88% CuEq is a strong grade for an indicated resource at this scale.

- Positive factor: Strong grade for indicated category

Evidence · text

> 475 Million Tonnes of 0.88% CuEq Indicated

### inferred

[Link to this fact](https://atlas-staging.minestarters.com/news/atex-reports-updated-mineral-resource-estimate-of-475-million-tonnes-of-0-88-cue--f575e725-8933-4f37-9fae-0ef6421a57f8#fact-resource-facts-1)

copper

#### Identity

- Commodity: copper
- Ticker: ATX

#### Resource Data

- Category: inferred
- Tonnes: 1500000000
- Grade: 0.75
- Grade Unit: % CuEq

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2025-09-23T00:00:00.000Z

Reasoning: The 1.5 billion tonne inferred component represents massive scale but carries higher geological risk.

- Positive factor: Massive tonnage scale

- Negative factor: High proportion of inferred resource

Evidence · text

> 1.5 Billion Tonnes of 0.75% CuEq Inferred

## 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.