# Winshear Portsoy Project - Successful Metallurgical Testwork Produces Marketable Copper and Highly Attractive Nickel Concentrates Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/winshear-portsoy-project-successful-metallurgical-testwork-produces-marketable-c--8af1eb95-e9d6-4bac-bec3-bb05db7d3fe0 Original source: https://money.tmx.com/en/quote/WINS/news/8283311575290343/winshear-portsoy-project-successful-metallurgical-testwork-produces-marketable-c Publisher: tmx Original announcement: 2026-07-27T11:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Winshear Metals Corp. - Ticker: WINS - Exchange: TSX - Region: NE Scotland - Primary commodity: Nickel - Secondary commodities: Copper, Cobalt - Document categories: Metallurgy - Extracted: 2026-09-15 06:32:34 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Winshear Metals Corp. reported positive results from its first metallurgical testwork at the Portsoy Project in Scotland. Batch flotation tests on a composite sample produced marketable copper and highly attractive nickel concentrates, with further locked-cycle studies planned to optimize recoveries. Reasoning: First-ever metallurgical testwork on the Rodburn Target shows promising recovery and concentrate quality using conventional flotation. - Positive factor: Successful production of marketable concentrates - Positive factor: Nickel concentrate is highly attractive to smelters - Positive factor: Low nickel content in copper concentrate avoids penalties - Positive factor: Conventional flotation methods appear amenable - Negative factor: Results are based on batch tests only - Negative factor: Recoveries are expected ranges rather than absolute values - Negative factor: Test scale is preliminary \(batch tests\) Facts used in scoring: 3 ## Classification and evidence **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: Results are based on batch tests, which are preliminary screening-level tests. Evidence · text > Based on the batch tests **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The testwork utilized sequential flotation methods. Evidence · text > conventional sequential flotation methods **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### batch flotation [Link to this fact](https://atlas-extractions.minestarters.com/news/winshear-portsoy-project-successful-metallurgical-testwork-produces-marketable-c--8af1eb95-e9d6-4bac-bec3-bb05db7d3fe0#fact-metallurgical-facts-0) Portsoy Project · nickel #### Identity - Project: Portsoy Project - Commodity: nickel - Region: ne scotland - Reported Region: NE Scotland - Ticker: WINS #### Test Work - Program Status: preliminary - Test Type: batch flotation - Processing Route: sequential flotation - Sample: composite sample of massive to disseminated sulphide mineralisation from Rodburn Target #### Recovery - Recovery: 62.5 % - Recovery Basis: actual\_test - Head Grade: 1.64 - Head Grade Unit: % #### Lab - Laboratory: Blue Coast Research Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-27T00:00:00.000Z Reasoning: Initial batch tests show potential for high-quality nickel concentrate. - Positive factor: Produces highly attractive nickel concentrate \(14-16% Ni\) - Negative factor: Recovery is an expected range \(60-65%\) from batch tests Evidence · text > nickel of 60-65% can be expected #### 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 **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 62.5% is below the weak band \(75%\) ### batch flotation [Link to this fact](https://atlas-extractions.minestarters.com/news/winshear-portsoy-project-successful-metallurgical-testwork-produces-marketable-c--8af1eb95-e9d6-4bac-bec3-bb05db7d3fe0#fact-metallurgical-facts-1) Portsoy Project · copper #### Identity - Project: Portsoy Project - Commodity: copper - Region: ne scotland - Reported Region: NE Scotland - Ticker: WINS #### Test Work - Program Status: preliminary - Test Type: batch flotation - Processing Route: sequential flotation - Sample: composite sample of massive to disseminated sulphide mineralisation from Rodburn Target #### Recovery - Recovery: 77.5 % - Recovery Basis: actual\_test - Head Grade: 0.82 - Head Grade Unit: % #### Lab - Laboratory: Blue Coast Research Ltd #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-27T00:00:00.000Z Reasoning: Copper recovery is promising and concentrate quality is typical for the style. - Positive factor: Produces marketable copper concentrate \(~25% Cu\) - Positive factor: Low nickel penalty risk - Negative factor: Recovery is an expected range \(75-80%\) from batch tests Evidence · text > copper recoveries of 75-80% #### 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 **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 77.5% is below the weak band \(80%\) ### Fact 3 [Link to this fact](https://atlas-extractions.minestarters.com/news/winshear-portsoy-project-successful-metallurgical-testwork-produces-marketable-c--8af1eb95-e9d6-4bac-bec3-bb05db7d3fe0#fact-metallurgical-facts-2) Portsoy Project · cobalt #### Identity - Project: Portsoy Project - Commodity: cobalt - Region: ne scotland - Reported Region: NE Scotland - Ticker: WINS #### Test Work - Sample: composite sample of massive to disseminated sulphide mineralisation from Rodburn Target #### Recovery - Head Grade: 0.11 - Head Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-27T00:00:00.000Z Reasoning: Cobalt is a minor component in the head assay but contributes to concentrate value. - Positive factor: Cobalt is present in nickel concentrate \(>1%\) Evidence · text > 0.11% cobalt ## 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.