# Omai Gold Reports Positive Metallurgical Testwork at its Omai Project with Gold Recoveries from 93% to 95% Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153 Original source: https://money.tmx.com/en/quote/OMG/news/6004262456693195/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold- Publisher: tmx Original announcement: 2026-06-22T11:01:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Omai Gold Mines Corp. - Ticker: OMG - Exchange: TSX - Region: Guyana - Primary commodity: Gold - Secondary commodities: Copper, Lead, Zinc - Document categories: Resource update, Metallurgy - Extracted: 2026-09-18 14:49:04 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Omai Gold has reported successful Phase 1 metallurgical testwork at its Omai Project in Guyana, demonstrating gold recoveries between 93% and 95%. The results show clean mineralogy and rapid leach kinetics, supporting the upcoming Preliminary Economic Assessment \(PEA\). Reasoning: The metallurgical results show high gold recoveries and clean mineralogy, which significantly de-risks the upcoming PEA for the Omai project. - Positive factor: High gold recoveries \(up to 95%\) - Positive factor: Clean mineralogy with no deleterious organic carbon or antimony - Positive factor: Rapid leach kinetics - Positive factor: SGS accredited laboratory used - Positive factor: Supports upcoming PEA - Negative factor: Testing limited to bottle roll/batch scale Facts used in scoring: 7 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Gold recoveries reached 95% which is in the exceptional/strong band for gold CIL/mill routes. Evidence · text > 95% Au extraction at 3.2 g/t Au **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: Mineralogy is described as clean with no organic carbon or deleterious components. Evidence · text > Both Wenot and Gilt deposit mineralogies are clean with no deleterious components \(no organic carbon, tellurides, or antimony\) **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: Release mentions correlation between exploration drill core assays and metallurgical head grades as a QA/QC component. Evidence · text > As a component of QA/QC for metallurgical test work, each composite sample was assayed and compared with the calculated weighted grade from exploration drill program sampling. **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The testwork was conducted using standard bottle roll leach tests. Evidence · text > The objective of this Phase 1 metallurgical testwork was to determine the amenability of the Wenot and Gilt gold deposits to a standard bottle roll leach and CIL circuit. **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: the document describes a mill\_cil route \("CIL"\) **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: the document describes a gravity route \("gravity"\) **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 2 distinct composites were tested ## Extracted facts Stored fact records: 7. Some facts used in scoring do not have a stored record. ## Resource Estimates (4) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-resource-facts-3) Omai Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Resource scope - Estimate type: resource - Effective date: 2026-04-14T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:e076c171a0acbeb6cf14 - Deposit or zone: Wenot - Mining method: open\_pit - Material type: fresh - Ownership percent: 100 % #### Resource Data - Category: indicated - Tonnes: 28400000 - Grade: 1.59 - Grade Unit: g/t - Contained Metal: 1453000 - Contained Unit: oz #### Prior Estimate - Resource Date: 2026-04-14 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: The Wenot Indicated resource grew by nearly 50% in ounces. - Positive factor: Significant tonnage and grade increase Evidence · text > Wenot Indicated MRE increased 49.8% to 1,453,000 ounces \("oz"\) of gold with an average grade of 1.59 g/t Au, contained in 28.4 million tonnes \("Mt"\) #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-resource-facts-4) Omai Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Resource scope - Estimate type: resource - Effective date: 2026-04-14T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:beee98892d41d0f90b4c - Deposit or zone: Wenot - Mining method: open\_pit - Material type: fresh - Ownership percent: 100 % #### Resource Data - Category: inferred - Tonnes: 92400000 - Grade: 1.35 - Grade Unit: g/t - Contained Metal: 3999000 - Contained Unit: oz #### Prior Estimate - Resource Date: 2026-04-14 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: Wenot Inferred resource increased by 7.6%. - Positive factor: Significant increase in inferred ounces Evidence · text > Wenot Inferred MRE increased 7.6% to 3,999,000 oz grading 1.35 g/t Au, contained in 92.4 Mt #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-resource-facts-5) Omai Gold Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Resource scope - Estimate type: resource - Effective date: 2026-04-14T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:ca3a616513da189180b1 - Deposit or zone: Gilt - Mining method: underground - Material type: fresh - Ownership percent: 100 % #### Resource Data - Category: inferred - Tonnes: 14200000 - Grade: 3.22 - Grade Unit: g/t - Contained Metal: 1465000 - Contained Unit: oz #### Prior Estimate - Resource Date: 2026-04-14 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: Gilt Inferred resource increased by 120%. - Positive factor: Massive increase in inferred ounces Evidence · text > Gilt's Inferred MRE increased 120% to 1,465,000 oz averaging 3.22 g/t Au \(in 14.2 Mt\) #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-resource-facts-6) Omai Gold Project · gold #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Resource scope - Estimate type: resource - Effective date: 2026-04-14T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Resource group id: resource:0905c7b210145dfc897e - Deposit or zone: Gilt - Mining method: underground - Material type: fresh - Ownership percent: 100 % #### Resource Data - Category: indicated - Tonnes: 9700000 - Grade: 3.33 - Grade Unit: g/t - Contained Metal: 1042000 - Contained Unit: oz #### Prior Estimate - Resource Date: 2026-04-14 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: Gilt Indicated resource decreased by 9.5%. - Negative factor: Indicated resource tonnage/ounces decreased Evidence · text > Gilt's ... Indicated MRE decreased by 9.5% to 1,042,000 oz averaging 3.33 g/t Au \(in 9.7 Mt\) #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ## Metallurgical Results (3) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-metallurgical-facts-0) Omai Gold Project · gold #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: bottle roll leach and CIL circuit - Sample: Wenot deposit composite samples \(61 samples\) - Grind P80: 75 µm #### Recovery - Recovery: 93 % - Recovery Basis: actual\_test - Head Grade: 1 - Head Grade Unit: g/t #### Lab - Laboratory: SGS \(Canada\) #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: 93% recovery at 1.0 g/t is a strong result for a preliminary bottle roll test. - Positive factor: High recovery at low head grade Evidence · text > 93% gold \("Au"\) extraction at 1.0 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 mill\_cil signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-metallurgical-facts-1) Omai Gold Project · gold #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: bottle roll leach and CIL circuit - Sample: Wenot deposit composite samples \(61 samples\) - Grind P80: 75 µm #### Recovery - Recovery: 95 % - Recovery Basis: actual\_test - Head Grade: 3.2 - Head Grade Unit: g/t #### Lab - Laboratory: SGS \(Canada\) #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: 95% recovery at 3.2 g/t is an excellent result. - Positive factor: High recovery at higher head grade Evidence · text > 95% Au extraction at 3.2 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 mill\_cil signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 95% is at or above the exceptional band \(95%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/omai-gold-reports-positive-metallurgical-testwork-at-its-omai-project-with-gold--d68603d0-5205-4c99-8119-3511ac96c153#fact-metallurgical-facts-2) Omai Gold Project · gold #### Identity - Project: Omai Gold Project - Commodity: gold - Region: guyana - Reported Region: Guyana - Ticker: OMG #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: bottle roll leach and CIL circuit - Sample: Gilt deposit composite samples \(11 samples\) - Grind P80: 75 µm #### Recovery - Recovery: 95 % - Recovery Basis: actual\_test - Head Grade: 3.2 - Head Grade Unit: g/t #### Lab - Laboratory: SGS \(Canada\) #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-06-22T00:00:00.000Z Reasoning: The maximum recovery reported was 95%. - Positive factor: High recovery Evidence · text > 95% Au extraction at 3.2 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 mill\_cil signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 95% is at or above the exceptional band \(95%\) ## 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.