# Why Minto Is Adding a Gravity Circuit Its Last Operator Turned Off

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/why-minto-is-adding-a-gravity-circuit-its-last-operator-turned-off--7b1d4db9-a7f5-4a18-a396-c22798d62656

Original source: https://www.cruxinvestor.com/posts/why-minto-is-adding-a-gravity-circuit-its-last-operator-turned-off

Publisher: cruxinvestor

Original announcement: 2026-09-03T00:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Selkirk Copper Mines

- Ticker: SCMI

- Exchange: Unavailable

- Region: Yukon

- Primary commodity: Copper

- Secondary commodities: Gold, Silver

- Document categories: Metallurgy

- Extracted: 2026-09-03 15:20:31 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

Selkirk Copper intends to add two gravity concentrators to its restart circuit at the former Minto mine to capture gold and silver that were previously bypassed due to a third-party stream. Management expects this change to increase gold and silver recoveries by approximately 10% each.

Reasoning: The company is planning to add gravity recovery to capture precious metals previously lost to a third-party stream, which could significantly improve project economics.

- Positive factor: removal of precious metal stream increases company exposure

- Positive factor: planned gravity circuit addition to boost gold/silver recovery

- Positive factor: completed metallurgical test work supports the change

- Negative factor: no capital cost or decision date stated for new equipment

- Negative factor: intent to add equipment is not a firm commitment

Facts used in scoring: 3

## Classification and evidence

**Mill Route**

Polarity: neutral

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

Why it applies: The article discusses changes to a processing plant/mill circuit.

Evidence · text

> Minto's mill averaged a copper recovery

**High Recovery**

Polarity: positive

Definition: Recovery at or above the exceptional band for the commodity and processing route.

Why it applies: Historical copper recovery of 91% is high for a mill route.

Evidence · text

> copper recovery of around 91%

## Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

## Metallurgical Results (3)

### Fact 1

[Link to this fact](https://atlas-staging.minestarters.com/news/why-minto-is-adding-a-gravity-circuit-its-last-operator-turned-off--7b1d4db9-a7f5-4a18-a396-c22798d62656#fact-metallurgical-facts-0)

copper

#### Identity

- Commodity: copper
- Ticker: SCMI

#### Test Work

- Sample: Minto mill life-of-mine average

#### Recovery

- Recovery: 91 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-09-03T00:00:00.000Z

Reasoning: Historical life-of-mine average copper recovery.

- Positive factor: high recovery attributed to coarse-grained sulfide minerals

Evidence · text

> Minto's mill averaged a copper recovery of around 91% over the life of the mine

### gravity

[Link to this fact](https://atlas-staging.minestarters.com/news/why-minto-is-adding-a-gravity-circuit-its-last-operator-turned-off--7b1d4db9-a7f5-4a18-a396-c22798d62656#fact-metallurgical-facts-1)

gold

#### Identity

- Commodity: gold
- Ticker: SCMI

#### Test Work

- Program Status: detailed
- Test Type: gravity
- Sample: Proposed gravity circuit addition

#### Recovery

- Recovery: 10 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-09-03T00:00:00.000Z

Reasoning: Expected incremental recovery increase from adding gravity concentrators.

- Positive factor: potential 10% recovery increase

Evidence · text

> would probably raise gold and silver recovery by about 10% each

### gravity

[Link to this fact](https://atlas-staging.minestarters.com/news/why-minto-is-adding-a-gravity-circuit-its-last-operator-turned-off--7b1d4db9-a7f5-4a18-a396-c22798d62656#fact-metallurgical-facts-2)

silver

#### Identity

- Commodity: silver
- Ticker: SCMI

#### Test Work

- Program Status: detailed
- Test Type: gravity
- Sample: Proposed gravity circuit addition

#### Recovery

- Recovery: 10 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-09-03T00:00:00.000Z

Reasoning: Expected incremental recovery increase from adding gravity concentrators.

- Positive factor: potential 10% recovery increase

Evidence · text

> would probably raise gold and silver recovery by about 10% each

## 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.