# Independent Lab Confirms Gold and Silver Recoveries of 89% and 75% Respectively in Sulphides at Palta Dorada Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in--130180c3-53ba-4157-a922-58389c155f9b Original source: https://money.tmx.com/en/quote/PER/news/7257442778679222/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in Publisher: tmx Original announcement: 2026-04-14T12:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Peruvian Metals Corp - Ticker: PER - Exchange: TSX - Region: Northern Peru - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Metallurgy - Extracted: 2026-08-21 00:07:48 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Peruvian Metals Corp has announced updated metallurgical results for the Palta Dorada property in Peru, confirming 89% gold and 75% silver recoveries from sulphide material via flotation. The results show a significant improvement in silver recovery compared to previous testing and were conducted by an accredited laboratory. Reasoning: The release confirms improved silver recoveries \(75% vs 61% previously\) and stable gold recoveries \(89%\) using flotation on sulphide material, validated by an accredited lab. - Positive factor: Improved silver recovery - Positive factor: Accredited laboratory confirmation - Positive factor: High head grades - Negative factor: Historical data comparison required Facts used in scoring: 4 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Story-specific tag Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release mentions work performed by Certmin S.A., an accredited testing laboratory for 43-101 purposes. Evidence · text > performed by Certmin S.A., an accredited testing laboratory for 43-101 purposes **QP/CP Signed** Polarity: positive Story-specific tag 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: Jeffrey Reeder, P. Geo., is named as the Qualified Person who reviewed and approved the technical contents. Evidence · text > Qualified Person Jeffrey Reeder, P. Geo., is the Qualified Person... who has reviewed and approved the technical contents ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Metallurgical Results (4) ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in--130180c3-53ba-4157-a922-58389c155f9b#fact-metallurgical-facts-0) gold #### Identity - Commodity: gold - Ticker: PER #### Test Work - Test Type: flotation - Processing Route: flotation - Sample: sulphide material composite over one metre #### Recovery - Recovery: 89 % - Recovery Basis: actual\_test - Head Grade: 11.1 - Head Grade Unit: g/t #### Lab - Laboratory: Certmin S.A. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: 89% gold recovery in sulphides is strong and confirmed by an accredited lab. - Positive factor: Stable high recovery Evidence · text > confirms gold recoveries of 89% and improved silver recoveries to 75%... sulphide material using flotation methods confirmed the 89% level for gold ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in--130180c3-53ba-4157-a922-58389c155f9b#fact-metallurgical-facts-1) silver #### Identity - Commodity: silver - Ticker: PER #### Test Work - Test Type: flotation - Processing Route: flotation - Sample: sulphide material composite over one metre #### Recovery - Recovery: 75 % - Recovery Basis: actual\_test - Head Grade: 4.67 - Head Grade Unit: oz/mt #### Lab - Laboratory: Certmin S.A. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: Silver recovery improved from 61% in previous work to 75% in current work. - Positive factor: Significant improvement in recovery Evidence · text > improved silver recoveries to 75% ### agitated cyanide leaching [Link to this fact](https://atlas-staging.minestarters.com/news/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in--130180c3-53ba-4157-a922-58389c155f9b#fact-metallurgical-facts-2) gold Historical result Needs review: historical\_restatement #### Identity - Commodity: gold - Ticker: PER #### Test Work - Test Type: agitated cyanide leaching - Processing Route: agitated cyanide leaching - Sample: oxide material composite over 1/2 metre - Leach Time: 48 hours #### Recovery - Recovery: 82 % - Recovery Basis: actual\_test - Head Grade: 35.1 - Head Grade Unit: g/t #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2026-01-21T00:00:00.000Z #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: This is a restatement of previous oxide metallurgical results. - Negative factor: Historical data Evidence · text > The head grade of a previously reported metallurgical test from the oxide material... returned 35.1 grams Au/mt... recoveries of 82% for gold ### agitated cyanide leaching [Link to this fact](https://atlas-staging.minestarters.com/news/independent-lab-confirms-gold-and-silver-recoveries-of-89-and-75-respectively-in--130180c3-53ba-4157-a922-58389c155f9b#fact-metallurgical-facts-3) silver Historical result Needs review: historical\_restatement #### Identity - Commodity: silver - Ticker: PER #### Test Work - Test Type: agitated cyanide leaching - Processing Route: agitated cyanide leaching - Sample: oxide material composite over 1/2 metre - Leach Time: 48 hours #### Recovery - Recovery: 58 % - Recovery Basis: actual\_test - Head Grade: 1.51 - Head Grade Unit: oz/mt #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2026-01-21T00:00:00.000Z #### Dates - Event date: 2026-04-14T00:00:00.000Z Reasoning: This is a restatement of previous oxide metallurgical results. - Negative factor: Historical data Evidence · text > recoveries of 82% for gold and 58% for silver over 48 hours ## 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.