# Critical Mineral Resource at Falchani Exceeds 400,000 t Cesium \(M+Ind\) Within Existing Lithium Resource Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418 Original source: https://money.tmx.com/en/quote/LI/news/4627976656576784/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis Publisher: tmx Original announcement: 2025-10-09T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: American Lithium Corp. - Ticker: LI - Exchange: TSX - Region: Peru - Primary commodity: Lithium - Secondary commodities: Cesium, Potassium, Rubidium - Document categories: Resource update, Metallurgy - Extracted: 2026-09-18 07:08:05 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary American Lithium Corp. has identified a significant cesium resource at its Falchani project in Peru, exceeding 400,000 tonnes of contained cesium within the existing lithium resource. Recent metallurgical test work also demonstrates process optimizations, including a 50% reduction in sulfuric acid consumption and the production of saleable cesium sulphate and potash by-products. Reasoning: The announcement highlights a significant strategic byproduct \(cesium\) within a known lithium resource and demonstrates technical progress in flowsheet optimization and cost reduction. - Positive factor: Significant cesium resource identified within existing lithium resource - Positive factor: Metallurgical test work shows high-purity lithium carbonate and saleable cesium/potash by-products - Positive factor: Process optimization reduces acid consumption by nearly 50% - Positive factor: NI 43-101 compliant resource estimate Facts used in scoring: 9 ## Classification and evidence **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The resource estimate is reported in accordance with NI 43-101 standards. Evidence · text > reported in accordance with the Canadian Securities Administrators NI 43-101. **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: Ted O’Connor, P.Geo., a Qualified Person, has reviewed and approved the technical information. Evidence · text > Mr. Ted O’Connor, P.Geo., ... has reviewed and approved the scientific and technical information **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The flowsheet involves leaching and precipitation to produce lithium carbonate and by-products. Evidence · text > Falchani’s volcanic-style lithium mineralization... supports a straightforward flowsheet that produces high-purity lithium carbonate **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: 9. Some facts used in scoring do not have a stored record. ## Resource Estimates (6) ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-0) Falchani · lithium #### Identity - Project: Falchani - Commodity: lithium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:ff90f3374a7202c2e72e #### Resource Data - Category: measured - Tonnes: 69000000 - Grade: 2792 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 2792 Context: 69 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-1) Falchani · cesium #### Identity - Project: Falchani - Commodity: cesium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:ff90f3374a7202c2e72e #### Resource Data - Category: measured - Tonnes: 69000000 - Grade: 631 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 631 Context: 69 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-2) Falchani · lithium #### Identity - Project: Falchani - Commodity: lithium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:5fe5378dc3857e2c4a53 #### Resource Data - Category: indicated - Tonnes: 378000000 - Grade: 2251 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 2251 Context: 378 #### 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 **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-3) Falchani · cesium #### Identity - Project: Falchani - Commodity: cesium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:5fe5378dc3857e2c4a53 #### Resource Data - Category: indicated - Tonnes: 378000000 - Grade: 1039 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 1039 Context: 378 #### 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-4) Falchani · lithium #### Identity - Project: Falchani - Commodity: lithium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:5b547f31706340378a5a #### Resource Data - Category: inferred - Tonnes: 506000000 - Grade: 1481 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 1481 Context: 506 #### 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 **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 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-resource-facts-5) Falchani · cesium #### Identity - Project: Falchani - Commodity: cesium - Region: peru - Reported Region: Peru - Ticker: LI #### Resource scope - Estimate type: resource - Effective date: 2023-10-30T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Mariea Kartick, Derek Loveday, Ted O’Connor - Resource group id: resource:5b547f31706340378a5a #### Resource Data - Category: inferred - Tonnes: 506000000 - Grade: 778 - Grade Unit: ppm #### Prior Estimate - Resource Date: 2023-10-30 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Restatement of the October 30, 2023 resource estimate. Evidence · table > 778 Context: 506 #### 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 **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 ## Metallurgical Results (3) ### Fact 1 [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-metallurgical-facts-6) Falchani · lithium #### Identity - Project: Falchani - Commodity: lithium - Region: peru - Reported Region: Peru - Ticker: LI #### Test Work - Program Status: optimization - Sample: Recycling 50% of acid streams #### Recovery - Recovery: 88 % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Optimization work shows improved reagent efficiency and byproduct potential. - Positive factor: Significant reduction in acid consumption - Positive factor: High-purity lithium carbonate production demonstrated Evidence · text > Li 88% #### Tags used in scoring **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 88% is at or above the exceptional band \(80%\) **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### Fact 2 [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-metallurgical-facts-7) Falchani · cesium #### Identity - Project: Falchani - Commodity: cesium - Region: peru - Reported Region: Peru - Ticker: LI #### Test Work - Program Status: optimization - Sample: Recycling 50% of acid streams #### Recovery - Recovery: 85 % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Optimization work shows improved reagent efficiency. - Positive factor: Significant reduction in acid consumption Evidence · text > Cs 85% #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### Fact 3 [Link to this fact](https://atlas-extractions.minestarters.com/news/critical-mineral-resource-at-falchani-exceeds-400-000-t-cesium-m-ind-within-exis--420eaa2d-5681-4b4b-a851-8b475406b418#fact-metallurgical-facts-8) Falchani · potassium #### Identity - Project: Falchani - Commodity: potassium - Region: peru - Reported Region: Peru - Ticker: LI #### Test Work - Program Status: optimization - Sample: Recycling 50% of acid streams #### Recovery - Recovery: 35 % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-09T00:00:00.000Z Reasoning: Optimization work shows improved reagent efficiency. Evidence · text > K 35% #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.