# NorthWest Announces Updated Mineral Resource at Kwanika Reflecting Strategic Shift to Higher-Grade Copper-Gold Focus

Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627

Original source: https://money.tmx.com/en/quote/NWST/news/8377035929893528/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi

Publisher: tmx

Original announcement: 2026-03-02T14:49:40.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: NorthWest Copper Corp.

- Ticker: NWST

- Exchange: TSX

- Region: British Columbia

- Primary commodity: Copper

- Secondary commodities: Gold, Silver

- Document categories: Resource update, Metallurgy

- Extracted: 2026-09-16 15:03:21 UTC

Narrative sentiment: 0.70 · Bullish

## Minestarters Atlas summary

NorthWest Copper Corp. announced an updated Mineral Resource Estimate for its Kwanika Central deposit in British Columbia, reflecting a strategic shift to higher-grade copper-gold mineralization. The estimate, prepared by SLR Consulting and compliant with NI 43-101, includes both open pit and sub-level cave components, forming the basis for a Preliminary Economic Assessment targeted for mid-2026. The update highlights significant indicated and inferred resources for copper, gold, and silver, supported by detailed metallurgical test work.

Reasoning: NorthWest Copper Corp. announced a significant updated Mineral Resource Estimate for its Kwanika Central deposit, reflecting a strategic focus on higher-grade copper-gold mineralization and incorporating both open pit and sub-level cave mining methods. This update, compliant with NI 43-101 and supported by detailed metallurgy, will form the basis for an upcoming Preliminary Economic Assessment, indicating strong progress towards project development despite some inherent dilution in the underground resource.

- Positive factor: Updated Mineral Resource Estimate for key project

- Positive factor: Strategic shift to higher-grade copper-gold focus

- Positive factor: Inclusion of both open pit and sub-level cave mining methods

- Positive factor: Resource estimate will support an updated PEA

- Positive factor: Strong QP sign-off and NI 43-101 compliance

- Positive factor: Detailed metallurgical test work with high recoveries

- Negative factor: Potential dilution from unclassified host rock in sub-level cave resource

- Negative factor: PEA is still targeted for mid-2026, not yet complete

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 27

## Classification and evidence

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: A current resource fact retains the disclosed cut-off grade

**Resource Update**

Polarity: neutral

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

Why it applies: The source explicitly discloses a revised resource estimate

Evidence · text

> Updated Mineral Resource

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: the document describes a flotation route \("flotation"\)

## Extracted facts

Stored fact records: 27. Some facts used in scoring do not have a stored record.

## Resource Estimates (24)

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-0)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:62e84f41930f4188cdf5
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 16220000

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 1.27
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated resource of 16.22 Mt at 1.27% CuEq reflects the combined value of copper, gold, and silver, with transparent assumptions for its calculation.

- Positive factor: High CuEq grade for indicated resource

- Positive factor: Metal equivalent assumptions disclosed for transparency

Evidence · table

> 1.27

Context: 16.22

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-1)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:62e84f41930f4188cdf5
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 16220000
- Grade: 0.74
- Grade Unit: g/t
- Contained Metal: 383
- Contained Unit: koz

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated gold resource of 16.22 Mt at 0.74 g/t Au adds substantial value to the Kwanika Central deposit, aligning with the strategic focus on higher-grade copper-gold mineralization.

- Positive factor: Significant indicated gold resource

- Positive factor: Part of an updated resource estimate supporting a PEA

Evidence · table

> 0.74

Context: 16.22

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-2)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:62e84f41930f4188cdf5
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 16220000
- Grade: 2
- Grade Unit: g/t
- Contained Metal: 1035
- Contained Unit: koz

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated silver resource of 16.22 Mt at 2.0 g/t Ag provides additional byproduct value to the Kwanika Central deposit, contributing to the overall economic potential.

- Positive factor: Significant indicated silver resource

- Positive factor: Part of an updated resource estimate supporting a PEA

Evidence · table

> 2.0

Context: 16.22

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-3)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:e37566f2c8340a2555be
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 28970000
- Grade: 307.6
- Grade Unit: mlbs

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 1.05
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred resource of 28.97 Mt at 1.05% CuEq indicates strong overall metal content, providing a basis for future resource conversion and economic studies.

- Positive factor: Good CuEq grade for inferred resource

- Positive factor: Metal equivalent assumptions disclosed for transparency

Evidence · table

> 307.6

Context: 28.97

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-4)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:e37566f2c8340a2555be
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 28970000
- Grade: 0.63
- Grade Unit: g/t
- Contained Metal: 589
- Contained Unit: koz

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred gold resource of 28.97 Mt at 0.63 g/t Au further enhances the long-term potential of the Kwanika Central deposit, supporting the higher-grade focus.

- Positive factor: Substantial inferred gold resource adds future potential

Evidence · table

> 0.63

Context: 28.97

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-5)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:e37566f2c8340a2555be
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 28970000
- Grade: 1.5
- Grade Unit: g/t
- Contained Metal: 1393
- Contained Unit: koz

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred silver resource of 28.97 Mt at 1.5 g/t Ag contributes to the overall contained metal, offering additional byproduct potential for the project.

- Positive factor: Significant inferred silver resource adds future potential

Evidence · table

> 1.5

Context: 28.97

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-6)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d36a62bbee47d8a4d283
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 8990000
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 0.98
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated open pit resource of 8.99 Mt at 0.98% CuEq demonstrates the combined value of the metals, supporting the economic potential of the open pit component.

- Positive factor: Good CuEq grade for indicated open pit resource

- Positive factor: Metal equivalent assumptions disclosed for transparency

Evidence · table

> 0.98

Context: 8.99

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-7)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d36a62bbee47d8a4d283
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 8990000
- Grade: 0.51
- Grade Unit: g/t
- Contained Metal: 148
- Contained Unit: koz
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated open pit gold resource of 8.99 Mt at 0.51 g/t Au contributes to the higher-grade focus for the early years of a potential mine, enhancing overall project economics.

- Positive factor: Indicated open pit gold resource supports early mine life potential

- Positive factor: Clear cut-off grade disclosed for open pit

Evidence · table

> 0.51

Context: 8.99

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-8)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d36a62bbee47d8a4d283
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 8990000
- Grade: 1.8
- Grade Unit: g/t
- Contained Metal: 512
- Contained Unit: koz
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated open pit silver resource of 8.99 Mt at 1.8 g/t Ag provides additional byproduct credits, contributing to the overall economic viability of the open pit component.

- Positive factor: Indicated open pit silver resource adds byproduct value

- Positive factor: Clear cut-off grade disclosed for open pit

Evidence · table

> 1.8

Context: 8.99

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-9)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d5a2c90d4ed3b719089f
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 9180000
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 0.63
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred open pit resource of 9.18 Mt at 0.63% CuEq indicates the overall metal content, providing a basis for future resource conversion and economic studies for the open pit.

- Positive factor: Inferred open pit CuEq grade adds future potential

- Positive factor: Metal equivalent assumptions disclosed for transparency

Evidence · table

> 0.63

Context: 9.18

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-10)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d5a2c90d4ed3b719089f
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 9180000
- Grade: 0.35
- Grade Unit: g/t
- Contained Metal: 104
- Contained Unit: koz
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred open pit gold resource of 9.18 Mt at 0.35 g/t Au contributes to the overall gold potential, albeit at a lower grade and confidence level than indicated resources.

- Positive factor: Inferred open pit gold resource adds future potential

Evidence · table

> 0.35

Context: 9.18

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-11)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:d5a2c90d4ed3b719089f
- Deposit or zone: Kwanika Central
- Mining method: open\_pit
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 9180000
- Grade: 1
- Grade Unit: g/t
- Contained Metal: 300
- Contained Unit: koz
- Cutoff Grade: 24.06
- Cutoff Unit: C$/t NSR

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred open pit silver resource of 9.18 Mt at 1.0 g/t Ag offers additional byproduct potential, contributing to the overall contained metal in the open pit component.

- Positive factor: Inferred open pit silver resource adds byproduct potential

Evidence · table

> 1.0

Context: 9.18

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-12)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:6072a8bc6d4403f1f825
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 7230000
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 1.64
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated underground resource of 7.23 Mt at 1.64% CuEq highlights the strong combined metal value, supporting the economic potential of the sub-level cave method despite dilution concerns.

- Positive factor: High CuEq grade for indicated underground resource

- Positive factor: Metal equivalent assumptions disclosed for transparency

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 1.64

Context: 7.23

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-13)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:6072a8bc6d4403f1f825
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 7230000
- Grade: 1.01
- Grade Unit: g/t
- Contained Metal: 235
- Contained Unit: koz
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated underground gold resource of 7.23 Mt at 1.01 g/t Au is a strong component of the higher-grade focus for underground mining, despite the potential for dilution.

- Positive factor: High-grade indicated underground gold resource

- Positive factor: Strategic shift to underground mining methods

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 1.01

Context: 7.23

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-14)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:6072a8bc6d4403f1f825
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 7230000
- Grade: 2.3
- Grade Unit: g/t
- Contained Metal: 523
- Contained Unit: koz
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated underground silver resource of 7.23 Mt at 2.3 g/t Ag provides additional byproduct value, contributing to the overall economics of the sub-level cave mining method.

- Positive factor: Indicated underground silver resource adds byproduct value

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 2.3

Context: 7.23

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-15)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:60925fe57342750f29bf
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 19800000
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Metal Eq. Grade: 1.24
- Metal Eq. Unit: % CuEq
- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred underground resource of 19.80 Mt at 1.24% CuEq indicates strong overall metal content, providing a basis for future resource conversion and economic studies for the sub-level cave.

- Positive factor: Good CuEq grade for inferred underground resource

- Positive factor: Metal equivalent assumptions disclosed for transparency

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 1.24

Context: 19.80

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-16)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:60925fe57342750f29bf
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 19800000
- Grade: 0.76
- Grade Unit: g/t
- Contained Metal: 485
- Contained Unit: koz
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred underground gold resource of 19.80 Mt at 0.76 g/t Au contributes significantly to the higher-grade focus for underground mining, with potential for future conversion.

- Positive factor: Substantial inferred underground gold resource adds future potential

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 0.76

Context: 19.80

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-17)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2026-02-27T00:00:00.000Z
- Reporting standards: ni\_43\_101, other
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:60925fe57342750f29bf
- Deposit or zone: Kwanika Central
- Mining method: underground
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 19800000
- Grade: 1.7
- Grade Unit: g/t
- Contained Metal: 1093
- Contained Unit: koz
- Cutoff Grade: 0
- Cutoff Unit: C$/t

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred underground silver resource of 19.80 Mt at 1.7 g/t Ag contributes to the overall contained metal, providing additional byproduct potential for the sub-level cave method.

- Positive factor: Significant inferred underground silver resource adds byproduct potential

- Negative factor: Potential dilution from unclassified host rock within the mining envelope

Evidence · table

> 1.7

Context: 19.80

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Disclosed**

Polarity: positive

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

Why it applies: cutoff\_grade is stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-21)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:0e98fe8ddfb3762f2422
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 16220000
- Grade: 226.6
- Grade Unit: mlbs

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The indicated copper resource of 16.22 Mt at 0.63% Cu contributes significantly to the overall updated resource estimate for the Kwanika Central deposit, providing a strong foundation for future economic studies. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: Significant indicated copper resource

- Positive factor: Part of an updated resource estimate supporting a PEA

Evidence · table

> 226.6

Context: 16.22

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-22)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- QP Signed: Yes
- Qualified person names: April Barrios, Stacy Freudigmann, Jarek Jakubec, Anoush Ebrahimi, Daniel Grabiec, Geoff Chinn
- Resource group id: resource:441d502d7624bcb18ad0
- Deposit or zone: Kwanika Central
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 28970000
- Grade: 307.6
- Grade Unit: mlbs

#### Prior Estimate

- Resource Date: 2026-02-27

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The inferred copper resource of 28.97 Mt at 0.48% Cu provides significant upside potential for the Kwanika Central deposit, although with lower geological confidence. \(Expanded from multi-commodity resource table for completeness.\)

- Positive factor: Substantial inferred copper resource adds future potential

Evidence · table

> 307.6

Context: 28.97

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**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: qp\_signed is true

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-23)

Table 2a Breakdown of Open Pit Mineral Resource at Kwanika Central · copper

#### Identity

- Project: Table 2a Breakdown of Open Pit Mineral Resource at Kwanika Central
- Commodity: copper
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- Resource group id: resource:f1e25a484f7e13a789b8
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 8990000
- Grade: 109.5
- Grade Unit: mlbs

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

- Negative factor: Fact expanded from resource table columns \(model omitted this commodity\).

Evidence · table

> 109.5

Context: 8.99

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-24)

Table 2a Breakdown of Open Pit Mineral Resource at Kwanika Central · copper

#### Identity

- Project: Table 2a Breakdown of Open Pit Mineral Resource at Kwanika Central
- Commodity: copper
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- Resource group id: resource:3eb177b8296d8b89401d
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 9180000
- Grade: 66.1
- Grade Unit: mlbs

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

- Negative factor: Fact expanded from resource table columns \(model omitted this commodity\).

Evidence · table

> 66.1

Context: 9.18

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### indicated

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-25)

Table 2b Breakdown of Sub-Level Cave Mineral Resource at Kwanika Central · copper

#### Identity

- Project: Table 2b Breakdown of Sub-Level Cave Mineral Resource at Kwanika Central
- Commodity: copper
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- Resource group id: resource:f04ed40a1ffe45816389
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: indicated
- Tonnes: 7230000
- Grade: 117
- Grade Unit: mlbs

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

- Negative factor: Fact expanded from resource table columns \(model omitted this commodity\).

Evidence · table

> 117.0

Context: 7.23

#### Tags used in scoring

**Indicated Resource**

Polarity: positive

Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.

Why it applies: category is "indicated"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

### inferred

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-resource-facts-26)

Table 2b Breakdown of Sub-Level Cave Mineral Resource at Kwanika Central · copper

#### Identity

- Project: Table 2b Breakdown of Sub-Level Cave Mineral Resource at Kwanika Central
- Commodity: copper
- Ticker: NWST

#### Resource scope

- Estimate type: resource
- Effective date: 2023-01-04T00:00:00.000Z
- Reporting standards: ni\_43\_101
- Resource group id: resource:63d8d2bdf790efc36d2b
- Mining method: combined
- Ownership percent: 100 %

#### Resource Data

- Category: inferred
- Tonnes: 19800000
- Grade: 241.5
- Grade Unit: mlbs

#### Metal Equivalent

- Assumptions Disclosed: Yes

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: Expanded from multi-commodity resource table for completeness.

- Negative factor: Fact expanded from resource table columns \(model omitted this commodity\).

Evidence · table

> 241.5

Context: 19.80

#### Tags used in scoring

**Inferred Resource**

Polarity: negative

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

Why it applies: category is "inferred"

**Cut-off Undisclosed**

Polarity: negative

Definition: High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: no cutoff\_grade was stated

**NI 43-101 Compliant**

Polarity: positive

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

Why it applies: reporting\_standards includes ni\_43\_101

**No Contained Metal**

Polarity: negative

Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.

Why it applies: contained\_metal was not reported

## Metallurgical Results (3)

### flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-metallurgical-facts-18)

Kwanika Central · copper

#### Identity

- Project: Kwanika Central
- Commodity: copper
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Test Work

- Program Status: detailed
- Test Type: flotation
- Processing Route: grind to 53 microns, flotation, leach float tailings
- Grind P80: 53 µm

#### Recovery

- Conc. Grade: 24.5
- Conc. Grade Unit: %

#### Reagents

- Reagent Notes: Reagent consumption during the leach was decreased relative to the previous work as the residual copper content was low. This in turn, allowed the process to use standard tailings treatment processes.

#### Lab

- Consultant: Canenco Consulting Corp.

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The copper concentrate grade of 24.5% is a good quality concentrate, indicating effective separation and marketability for the copper product.

- Positive factor: Good copper concentrate grade

- Positive factor: Detailed test work supports resource estimate

Evidence · table

> 24.5

Context: Copper concentrate

#### Tags used in scoring

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: processing\_route matches the flotation signal

### flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-metallurgical-facts-19)

Kwanika Central · gold

#### Identity

- Project: Kwanika Central
- Commodity: gold
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Test Work

- Program Status: detailed
- Test Type: flotation
- Processing Route: grind to 53 microns, flotation, leach float tailings
- Grind P80: 53 µm

#### Recovery

- Conc. Grade: 40.3
- Conc. Grade Unit: g/t

#### Reagents

- Reagent Notes: Reagent consumption during the leach was decreased relative to the previous work as the residual copper content was low. This in turn, allowed the process to use standard tailings treatment processes.

#### Lab

- Consultant: Canenco Consulting Corp.

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The gold concentrate grade of 40.3 g/t indicates a high-quality gold product within the copper concentrate, contributing to the overall value.

- Positive factor: Good gold concentrate grade

- Positive factor: Detailed test work supports resource estimate

Evidence · table

> 40.3

Context: g/t Au

#### Tags used in scoring

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: processing\_route matches the flotation signal

### flotation

[Link to this fact](https://atlas-extractions.minestarters.com/news/northwest-announces-updated-mineral-resource-at-kwanika-reflecting-strategic-shi--f26c6828-baf2-4f89-8b76-8e88644e7627#fact-metallurgical-facts-20)

Kwanika Central · silver

#### Identity

- Project: Kwanika Central
- Commodity: silver
- Region: canada\_bc
- Reported Region: British Columbia
- Ticker: NWST

#### Test Work

- Program Status: detailed
- Test Type: flotation
- Processing Route: grind to 53 microns, flotation, leach float tailings
- Grind P80: 53 µm

#### Recovery

- Conc. Grade: 71.6
- Conc. Grade Unit: g/t

#### Reagents

- Reagent Notes: Reagent consumption during the leach was decreased relative to the previous work as the residual copper content was low. This in turn, allowed the process to use standard tailings treatment processes.

#### Lab

- Consultant: Canenco Consulting Corp.

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-03-02T00:00:00.000Z

Reasoning: The silver concentrate grade of 71.6 g/t indicates a valuable byproduct within the copper concentrate, further enhancing the project's economics.

- Positive factor: Good silver concentrate grade

- Positive factor: Detailed test work supports resource estimate

Evidence · table

> 71.6

Context: g/t Ag

#### Tags used in scoring

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: processing\_route matches the flotation signal

## 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.